JP6646595B2 - Suspension devices such as ceiling suspension bolts - Google Patents

Description

  The present invention provides a steel roof frame which is provided at a lower portion of a roofing material, a steel purlin is mounted orthogonally to the steel roof frame, and a ceiling suspension bolt or a steady rest is provided by a suspension bolt suspension bracket attached to the steel frame. The present invention relates to a suspension device such as a ceiling suspension bolt for attaching a brace suspension bolt.

  As a conventional ceiling suspension bolt suspension device, as shown in FIG. 13, a steel frame purlin 3 is attached to a lower part of a roof material 1 at right angles to a steel frame frame 2 arranged in the longitudinal direction thereof. A suspension bolt suspension bracket 35 for suspending the ceiling suspension bolt 4 is attached to the steel purlin 3, the ceiling suspension bolt 4 is suspended on the suspension bolt suspension bracket 35, and the lower end of the ceiling suspension bolt 4 is connected to a hanger H by a hanger H. A rim receiver U is attached, a ridge N is attached to the ridge receiver U by a clip C, and a ceiling material T is attached to the ridge N by screws or adhesive.

  Then, in order to prevent the suspension bolt suspension bracket 35 from falling off the steel purlin 3 when the building is subjected to an external pressure such as an excessive earthquake, a fall prevention bolt 36 is provided between the suspension bolt suspension bracket 35 and the steel purlin 3. Attachment and consideration are made so that the suspension bolt suspension bracket 35 is prevented from falling off from the steel purlin 3 under the control of the stopper bolt 36.

  At this time, the structure for attaching the captive bolt 36 to the steel purlin 3 will be described by enlarging the portion shown in FIG. 13A in the direction of the arrow. The tip of the captive bolt 36 is bent in a U-shape. A hook portion 36a is formed, and this is engaged with a flange portion 3a formed on the steel purlin 3 so that the other end of the fall prevention bolt 36 is fixed to the suspension bolt suspension bracket 35 with the nut 11. I have. (In the enlarged view, the suspension bolt suspension bracket 35 is omitted.)

  As described above, in order to lock the fall prevention bolt 36 to the steel frame purlin 3, the steel frame purlin 3 is formed with the flange portion 3 a for hooking and locking the hook portion 36 a formed on the fall prevention bolt 36. Must have been.

  Conventionally, when an H-shaped steel is used as the steel purlin 3 as shown in the figure, the H-shaped steel has a T-shaped flange 3a for hooking the hook 36a of the captive bolt 36. By locking the hook portion 36a of the falling-off prevention bolt 36 to the flange portion 3a, the hanging bolt suspension bracket 35 can be prevented from dropping from the steel frame 3 by a simple structure. A section steel having no flange 3a for hooking the hook 36a of the captive bolt 36, for example, an angle steel 3A having an L-shaped cross section or a channel steel 3B having a U-shaped cross section as shown in FIG. ) Does not have a T-shaped flange portion such as an H-shaped steel, so that the fall prevention bolt 36 could not be locked. For this reason, in the related art, the end portion of the drop-off prevention bolt 36 is vertically extended vertically upward along the vertical piece 7 of the angle steel 3A having an L-shaped cross section or the channel steel 3B having a U-shaped cross section, though not shown. It is conceivable that a hook portion is formed on the extended portion and the hook portion is hooked on the upper end portion of the vertical piece 7. In some cases, the length of the vertical piece 7 exceeds 400 mm, and it is impossible to manufacture the drop-prevention bolt 36 in accordance with the long vertical piece 7, so that the angle steel 3A having the L-shaped cross section is used. The fall prevention bolt 36 could not be attached to the steel purlin 3 made of the channel steel 3B having a U-shaped cross section. Therefore, when a large external pressure such as an earthquake is received, there is a danger that the suspension bolt suspension bracket 35 will fall off the steel frame 3.

  According to the present invention, a steel frame purlin 3 is fixed to a steel frame 2 provided at a lower portion of a roofing material 1 perpendicularly thereto, and a ceiling suspension bolt 4 or a steady brace suspension bolt is suspended on the steel frame 3. In a suspension device such as a ceiling suspension bolt to which a suspension bolt suspension bracket 5 is attached, the steel purlin 3 abuts on the steel frame 2 and a vertical piece 7 standing upright on the steel frame 2. When the hanging bolt suspension bracket 5 is attached to the steel purlin 3 made of the L-shaped angle steel 3A or the U-shaped grooved steel 3B made of these steel shapes, external pressure such as an earthquake is applied. Even if it receives, the suspension bolt suspension bracket 5 attached to the steel frame 3 does not fall off from the steel frame 3 and a ceiling suspension bolt suspension device firmly attached to the steel frame 3 is proposed. It is an object of the present invention and.

Means for solving the above-mentioned problem will be described with reference numerals of embodiments described below. The ceiling suspension bolt suspension device according to claim 1 has a structure in which a roof material 1 is provided as shown in FIGS. A steel frame 3 is fixed perpendicularly to a steel frame 2 (FIG. 2) provided at a lower portion, and a ceiling suspension bolt suspension bracket 5 for suspending a ceiling suspension bolt 4 on the steel frame 3 is provided. In the attached ceiling suspension bolt suspension device, the steel frame purlin 3 has an L-shaped cross section L-shaped angle steel 3A having a horizontal piece 6 abutting on the steel frame roof frame 2 and a vertical piece 7 standing upright on the horizontal piece. These steel frame purlins are made of a channel steel 3B having a U-shaped cross section (a portion of the angle steel 3A shown in FIG. 1A is taken out in the direction of the arrow, and the channel steel 3B is shown instead of the angle steel 3A). Attach the ceiling suspension bolt suspension bracket 5 to 3 Hitting the that, as shown in FIG. 3, the ceiling bolt suspension brackets 5, upper frame 12 and the vertical frame 13 and at an opening 15 that faces the lower frame 14 and the vertical frame 13 cross sideways U-shaped A bracket body 5a is formed, and the opening 15 is inserted into the lateral piece 6 of the steel purlin 3 and the lower end 16a of a pressing bolt 16 screwed into the upper frame 12 and the upper end of the ceiling suspension bolt 4 screwed into the lower frame 14. 4a sandwiches the horizontal piece 6 , and prevents the ceiling suspension bolt suspension bracket 5 from dropping off from the steel frame purlin 3 between the ceiling suspension bolt suspension bracket 5 and the steel purlin 3. Bolts 10 (FIG. 1) are interposed, and the two bolts are provided along the lower surface side of the horizontal piece 6 of the angle iron 3A or the groove steel 3B. Bolt part 8 and stand vertically The two regulating bolts 9 disposed along the longitudinal side of the vertical piece 7 of the angle iron 3A or the channel steel 3B, and the rising ends of both regulating bolts 9 are bifurcated. The two mounting bolts 8 are attached to the ceiling suspension bolt suspension bracket 5 by nuts 11 respectively, and the two restriction bolts 9 are connected to the angle iron 3A or the groove. The vertical piece 7 of the steel 3B is brought into contact with a vertical surface 7a (FIG. 3) of the vertical piece 7, and in this state, the ceiling suspension bolt suspension bracket 5 is mounted on the steel frame purlin 3 regulated by the drop-off prevention bolt 10. It consists of

The invention according to claim 2, as shown in FIGS. 1 to 6, fixes a steel frame purlin 3 orthogonally to a steel frame frame 2 (FIG. 2) disposed below the roof material 1. In the ceiling suspension bolt suspension device in which the ceiling suspension bolt suspension bracket 5 for suspending the ceiling suspension bolt 4 is attached to the steel frame purlin 3, the steel frame purlin 3 is in contact with the steel frame roof frame 2. An angle steel 3A having an L-shaped cross section or a channel steel 3B having a U-shaped cross section having a piece 6 and a vertical piece 7 standing perpendicularly thereto (the angle steel 3A shown in FIG. 1A is taken out in the direction of the arrow). The angle bracket 3B is replaced with a channel steel 3B.) When the ceiling suspension bolt suspension bracket 5 is attached to these steel purlins 3, as shown in FIG. 3, the ceiling suspension bolt suspension bracket is used. 5 is an upper frame 12, a vertical frame 13, and a lower frame 1. And an opening 15 facing the vertical frame 13 to form a bracket body 5 a having a U-shaped cross section in a horizontal direction, and inserting the opening 15 into the horizontal piece 6 of the steel purlin 3 and screwing it into the upper frame 12. 16 and the upper end 4a of the ceiling suspension bolt 4 screwed into the lower frame 14, the horizontal piece 6 is sandwiched between the ceiling suspension bolt suspension bracket 5 and the steel purlin 3. A captive bolt 10 (FIG. 1) for preventing the ceiling suspension bolt suspension bracket 5 from dropping from the steel purlin 3 is interposed, and the captive bolt 10 is formed of the angle iron 3A or the channel steel 3B. Two mounting bolts 8 are provided along the lower surface of the horizontal piece 6 and rise vertically and are provided along the vertical surface of the vertical piece 7 of the angle iron 3A or the channel steel 3B. Two regulating bolt portions 9 to be provided; Consists of a connecting portion 9a connecting the rising edge of the regulating bolt portion 9 integral with one another in bifurcated, as shown in FIGS. 3, 4 and 6, the said lower frame 14 of the ceiling hanger bolts suspension brackets 5 An upright frame 17 protruding from the side of the opening 15 and in contact with the lower surface of the horizontal piece 6 of the steel purlin 3 is provided, and the two mounting bolt portions 8 of the falling-off prevention bolt 10 are connected to the upright frame 17 and the vertical frame. 13 so that the two mounting bolts 8 are disposed along the lower surface of the horizontal piece 6, and the two mounting bolts 8 projecting from the vertical frame 13 are screwed. By screwing the nuts 11 into the portions 8a, the two regulating bolt portions 9 of the captive bolts 10 are pressed against the vertical pieces 7 of the steel purlin 3 and the ceiling suspension bolt suspension bracket 5 is attached to the steel frame by the captive bolts 10. Iron coming out of purlin 3 is restricted It is configured to be attached to the bone purlin 3 .

The invention according to claim 3, as shown in FIGS. 1 to 6, fixes a steel frame purlin 3 orthogonally to a steel frame frame 2 (FIG. 2) disposed below the roof material 1. In the ceiling suspension bolt suspension device in which the ceiling suspension bolt suspension bracket 5 for suspending the ceiling suspension bolt 4 is attached to the steel frame purlin 3, the steel frame purlin 3 is in contact with the steel frame roof frame 2. An angle steel 3A having an L-shaped cross section or a channel steel 3B having a U-shaped cross section having a piece 6 and a vertical piece 7 standing perpendicularly thereto (the angle steel 3A shown in FIG. 1A is taken out in the direction of the arrow). The angle bracket 3B is replaced with a channel steel 3B.) When the ceiling suspension bolt suspension bracket 5 is attached to these steel purlins 3, as shown in FIG. 3, the ceiling suspension bolt suspension bracket is used. 5 is an upper frame 12, a vertical frame 13, and a lower frame 1. And an opening 15 facing the vertical frame 13 to form a bracket body 5 a having a U-shaped cross section in a horizontal direction, and inserting the opening 15 into the horizontal piece 6 of the steel purlin 3 and screwing it into the upper frame 12. 16 and the upper end 4a of the ceiling suspension bolt 4 screwed into the lower frame 14, the horizontal piece 6 is sandwiched between the ceiling suspension bolt suspension bracket 5 and the steel purlin 3. A captive bolt 10 (FIG. 1) for preventing the ceiling suspension bolt suspension bracket 5 from dropping from the steel purlin 3 is interposed, and the captive bolt 10 is formed of the angle iron 3A or the channel steel 3B. Two mounting bolts 8 are provided along the lower surface of the horizontal piece 6 and rise vertically and are provided along the vertical surface of the vertical piece 7 of the angle iron 3A or the channel steel 3B. Two regulating bolt portions 9 to be provided; Consists of a connecting portion 9a connecting the rising edge of the regulating bolt portion 9 integral with one another bifurcated, as shown in FIGS. 5 and 6, the lower frame 14 of the ceiling hanger bolts suspension brackets 5 of steel made purlin 3 a pair of screwing pieces 18 in surface contact with the lower surface of the horizontal piece 6 projecting, Ri Na and fixed to the crosspiece 6 by drilling a screw 19 screwed into the pair of screwing pieces 18 to the crosspiece 6, 2 The two mounting bolts 8 are attached to the ceiling suspension bolt suspension brackets 5 with nuts 11 respectively, and the two regulating bolts 9 are provided on the vertical surface 7a of the vertical piece 7 of the angle iron 3A or the channel steel 3B. (FIG. 3), and in this state, the ceiling suspension bolt suspension bracket 5 is configured to be attached to the steel purlin 3 while being regulated by the drop-off prevention bolt 10 .

In the invention according to claim 4 , as shown in FIGS. 1 and 7 to 12, a steel frame purlin 3 is fixed orthogonally to a steel frame 2 provided at a lower portion of the roof material 1. In a suspension device such as a ceiling suspension bolt in which a ceiling suspension bolt 4 or a suspension bolt suspension bracket 5A for suspending the suspension brace suspension bolt 23 is attached to the steel frame purlin 3, the steel frame purlin 3 is the steel frame roof frame. An angle steel 3A having an L-shaped cross section or a channel steel 3B having a U-shaped cross section having a horizontal piece 6 abutting on the frame 2 and a vertical piece 7 standing upright on the frame 2 (a part of the angle steel 3A shown in FIG. It is taken out in the direction of the arrow to show the channel steel 3B instead of the angle iron 3A.), And a suspension bolt suspension bracket for suspending the ceiling suspension bolt 4 or the anti-sway brace suspension bolt 23 on these steel purlins 3. To attach 5A I, 8, as shown in FIG. 11 or 12, wherein the hanger rod suspension brackets 5A comprises an upper frame 12 and the vertical frame 13 and the cross-sectional sideways U in the opening 15 opposed to the lower frame 20 and the vertical frame 13 The opening 15 is inserted into the crosspiece 6 of the steel purlin 3, and a pressing bolt 16 for pressing the upper surface of the crosspiece 6 is screwed into the upper frame 12 to form the upper frame 12. The suspension bolt suspension bracket is pressed and supported by the horizontal piece of the steel purlin by a pressing bolt 16 screwed from 12, and the suspension bolt suspension bracket 5A is provided between the suspension bolt suspension bracket 5A and the steel purlin 3. A fall prevention bolt 10 for preventing the steel frame from falling off from the purlin 3 is interposed. The fall prevention bolt 10 is arranged along the lower surface of the cross piece 6 of the angle iron 3A or the groove steel 3B. Established Two mounting bolt portions 8, two regulating bolt portions 9 which rise vertically and are disposed along the vertical surface 7 a side of the vertical piece 7 of the angle iron 3 A or the channel steel 3 B; A connecting portion 9a for integrally connecting the rising ends of the two regulating bolt portions 9 to each other in a bifurcated manner. The two mounting bolt portions 8 are attached to the suspension bolt suspension bracket 5A by nuts 11 respectively. The regulating bolt portion 9 is in contact with the vertical surface 7a of the vertical piece 7 of the angle iron 3A or the channel steel 3B. In this state, the suspension bolt suspension bracket 5A is regulated by the falling-off prevention bolt 10 and It is configured to be attached to the purlin 3.

In the invention according to claim 5 , as shown in FIGS. 1 and 7 to 12, a steel frame purlin 3 is fixed to a steel frame roof frame 2 provided at a lower portion of a roof material 1 at right angles. In a suspension device such as a ceiling suspension bolt in which a ceiling suspension bolt 4 or a suspension bolt suspension bracket 5A for suspending the suspension brace suspension bolt 23 is attached to the steel frame purlin 3, the steel frame purlin 3 is the steel frame roof frame. An angle steel 3A having an L-shaped cross section or a channel steel 3B having a U-shaped cross section having a horizontal piece 6 abutting on the frame 2 and a vertical piece 7 standing upright on the frame 2 (a part of the angle steel 3A shown in FIG. It is taken out in the direction of the arrow to show the channel steel 3B instead of the angle iron 3A.), And a suspension bolt suspension bracket for suspending the ceiling suspension bolt 4 or the anti-sway brace suspension bolt 23 on these steel purlins 3. To attach 5A Therefore, as shown in FIG. 8, FIG. 11 or FIG. 12, the hanging bolt suspension bracket 5A has an upper frame 12, a vertical frame 13, a lower frame 20, and an opening 15 facing the vertical frame 13 in a horizontal cross section. The opening 15 is inserted into the crosspiece 6 of the steel purlin 3, and a pressing bolt 16 for pressing the upper surface of the crosspiece 6 is screwed into the upper frame 12 to form the upper frame 12. The suspension bolt suspension bracket is pressed and supported by the horizontal piece of the steel purlin by a pressing bolt 16 screwed from 12, and the suspension bolt suspension bracket 5A is provided between the suspension bolt suspension bracket 5A and the steel purlin 3. A fall prevention bolt 10 for preventing the steel frame from falling off from the purlin 3 is interposed. The fall prevention bolt 10 is arranged along the lower surface of the cross piece 6 of the angle iron 3A or the groove steel 3B. Established Two mounting bolt portions 8, two regulating bolt portions 9 which rise vertically and are disposed along the vertical surface 7 a side of the vertical piece 7 of the angle iron 3 A or the channel steel 3 B; A connecting portion 9a for integrally connecting the rising ends of the two regulating bolt portions 9 to each other in a bifurcated manner . As shown in FIG. 8, FIG. 11, or FIG. Are inserted through the lower frame 20 and the vertical frame 13 so that the two mounting bolt portions 8 are disposed along the lower surface side of the horizontal piece 6 of the steel frame 3 and the suspension bolts. By screwing the nuts 11 into the threaded portions 18a of the two mounting bolts 8 protruding from the vertical frame 13 of the suspension bracket 5A, the two restricting bolts 9 of the captive bolts become the vertical pieces 7 of the steel frame 3. 5A, the suspension bolt suspension bracket 5A The escape from the steel frame purlin 3 is regulated by the bolt 10 and the structure is attached to the steel frame purlin 3 .

In the invention according to claim 6 , as shown in FIGS. 1 and 7 to 12, a steel frame purlin 3 is fixed orthogonally to a steel frame 2 provided below the roof material 1. In a suspension device such as a ceiling suspension bolt in which a ceiling suspension bolt 4 or a suspension bolt suspension bracket 5A for suspending the suspension brace suspension bolt 23 is attached to the steel frame purlin 3, the steel frame purlin 3 is the steel frame roof frame. An angle steel 3A having an L-shaped cross section or a channel steel 3B having a U-shaped cross section having a horizontal piece 6 abutting on the frame 2 and a vertical piece 7 standing upright on the frame 2 (a part of the angle steel 3A shown in FIG. It is taken out in the direction of the arrow to show the channel steel 3B instead of the angle iron 3A.), And a suspension bolt suspension bracket for suspending the ceiling suspension bolt 4 or the anti-sway brace suspension bolt 23 on these steel purlins 3. To attach 5A Therefore, as shown in FIG. 8, FIG. 11 or FIG. 12, the hanging bolt suspension bracket 5A has an upper frame 12, a vertical frame 13, a lower frame 20, and an opening 15 facing the vertical frame 13 in a horizontal cross section. The opening 15 is inserted into the crosspiece 6 of the steel purlin 3, and a pressing bolt 16 for pressing the upper surface of the crosspiece 6 is screwed into the upper frame 12 to form the upper frame 12. The suspension bolt suspension bracket is pressed and supported by the horizontal piece of the steel purlin by a pressing bolt 16 screwed from 12, and the suspension bolt suspension bracket 5A is provided between the suspension bolt suspension bracket 5A and the steel purlin 3. A fall prevention bolt 10 for preventing the steel frame from falling off from the purlin 3 is interposed. The fall prevention bolt 10 is arranged along the lower surface of the cross piece 6 of the angle iron 3A or the groove steel 3B. Established Two mounting bolt portions 8, two regulating bolt portions 9 which rise vertically and are disposed along the vertical surface 7 a side of the vertical piece 7 of the angle iron 3 A or the channel steel 3 B; A connecting portion 9a for connecting the rising ends of the two regulating bolt portions 9 together in a bifurcated manner . As shown in FIGS. 8, 11 or 12, the lower frame 20 of the suspension bolt suspension bracket 5A is made of a steel frame. The roof frame 2 is formed in an arcuate shape curved in an arcuate shape in the longitudinal direction, and the arcuate curve lower frame 20 is provided with a long hole 21 opening in the curve direction. On the curved inner surface 20a of the lower frame 20, a plate-shaped curved nut 22 slidable in the bending direction along the inner surface 20a is provided, and the ceiling suspension bolt 4 or the anti-sway brace suspension bolt 23 is provided on the plate-shaped curved nut 22. A structure that is screwed through the long hole 21 It consists of

In the invention according to claim 7 , as shown in FIGS. 1 and 7 to 12, a steel frame purlin 3 is fixed orthogonal to a steel frame 2 provided at a lower portion of the roof material 1. In a suspension device such as a ceiling suspension bolt in which a ceiling suspension bolt 4 or a suspension bolt suspension bracket 5A for suspending the suspension brace suspension bolt 23 is attached to the steel frame purlin 3, the steel frame purlin 3 is the steel frame roof frame. An angle steel 3A having an L-shaped cross section or a channel steel 3B having a U-shaped cross section having a horizontal piece 6 abutting on the frame 2 and a vertical piece 7 rising vertically to the vertical piece 7 (the angle steel 3A shown in FIG. It is taken out in the direction of the arrow to show the channel steel 3B instead of the angle iron 3A.), And a suspension bolt suspension bracket for suspending the ceiling suspension bolt 4 or the anti-sway brace suspension bolt 23 on these steel purlins 3. To attach 5A Therefore, as shown in FIG. 8, FIG. 11 or FIG. 12, the hanging bolt suspension bracket 5A has an upper frame 12, a vertical frame 13, a lower frame 20, and an opening 15 facing the vertical frame 13 in a horizontal cross section. The opening 15 is inserted into the crosspiece 6 of the steel purlin 3, and a pressing bolt 16 for pressing the upper surface of the crosspiece 6 is screwed into the upper frame 12 to form the upper frame 12. The suspension bolt suspension bracket is pressed and supported by the horizontal piece of the steel purlin by a pressing bolt 16 screwed from 12, and the suspension bolt suspension bracket 5A is provided between the suspension bolt suspension bracket 5A and the steel purlin 3. A fall prevention bolt 10 for preventing the steel frame from falling off from the purlin 3 is interposed. The fall prevention bolt 10 is arranged along the lower surface of the cross piece 6 of the angle iron 3A or the groove steel 3B. Established Two mounting bolt portions 8, two regulating bolt portions 9 which rise vertically and are disposed along the vertical surface 7 a side of the vertical piece 7 of the angle iron 3 A or the channel steel 3 B; A connecting portion 9a for connecting the rising ends of the two regulating bolt portions 9 together in a bifurcated manner. As shown in FIGS. 8, 11 or 12, the lower frame 20 of the suspension bolt suspension bracket 5A is made of a steel frame. The roof frame 2 is formed in an arcuate shape curved in an arcuate shape in the longitudinal direction, and the arcuate curve lower frame 20 is provided with a long hole 21 opening in the curve direction. On the curved inner surface 20a of the lower frame 20, a plate-shaped curved nut 22 slidable in the bending direction along the inner surface 20a is provided, and the ceiling suspension bolt 4 or the anti-sway brace suspension bolt 23 is provided on the plate-shaped curved nut 22. It is screwed through the long hole 21, As shown in FIG. 8, FIG. 11 or FIG. 12, the hanging bolt suspension bracket 5 </ b> A includes an intermediate frame 20 </ b> A formed integrally with the lower frame 20 between the upper frame 12 and the lower frame 20. 20A is applied to the lower surface side of the horizontal piece 6 of the steel frame purlin 3, and the arc-shaped curved lower frame 20 of the suspension bolt suspension bracket 5A is made of steel using a drill screw 16A screwed into the horizontal piece 6 from the intermediate frame 20A. It is configured to be fixed to the horizontal piece 6 of the purlin 3.

In the invention according to claim 8 , as shown in FIGS. 1 and 7 to 12, a steel frame purlin 3 is fixed orthogonal to a steel frame 2 provided at a lower portion of the roof material 1. In a suspension device such as a ceiling suspension bolt in which a ceiling suspension bolt 4 or a suspension bolt suspension bracket 5A for suspending the suspension brace suspension bolt 23 is attached to the steel frame purlin 3, the steel frame purlin 3 is the steel frame roof frame. An angle steel 3A having an L-shaped cross section or a channel steel 3B having a U-shaped cross section having a horizontal piece 6 abutting on the frame 2 and a vertical piece 7 standing upright on the frame 2 (a part of the angle steel 3A shown in FIG. It is taken out in the direction of the arrow to show the channel steel 3B instead of the angle iron 3A.), And a suspension bolt suspension bracket for suspending the ceiling suspension bolt 4 or the anti-sway brace suspension bolt 23 on these steel purlins 3. To attach 5A Therefore, as shown in FIG. 8, FIG. 11 or FIG. 12, the hanging bolt suspension bracket 5A has an upper frame 12, a vertical frame 13, a lower frame 20, and an opening 15 facing the vertical frame 13 in a horizontal cross section. The opening 15 is inserted into the crosspiece 6 of the steel purlin 3, and a pressing bolt 16 for pressing the upper surface of the crosspiece 6 is screwed into the upper frame 12 to form the upper frame 12. The suspension bolt suspension bracket is pressed and supported by the horizontal piece of the steel purlin by a pressing bolt 16 screwed from 12, and the suspension bolt suspension bracket 5A is provided between the suspension bolt suspension bracket 5A and the steel purlin 3. A fall prevention bolt 10 for preventing the steel frame from falling off from the purlin 3 is interposed. The fall prevention bolt 10 is arranged along the lower surface of the cross piece 6 of the angle iron 3A or the groove steel 3B. Established Two mounting bolt portions 8, two regulating bolt portions 9 which rise vertically and are disposed along the vertical surface 7 a side of the vertical piece 7 of the angle iron 3 A or the channel steel 3 B; A connecting portion 9a for connecting the rising ends of the two regulating bolt portions 9 together in a bifurcated manner. As shown in FIGS. 8, 11 or 12, the lower frame 20 of the suspension bolt suspension bracket 5A is made of a steel frame. The roof frame 2 is formed in an arc shape curved in an arc shape in the longitudinal direction, and a long hole 21 opened in the curve direction is formed through the lower portion 20 in the arc shape lower frame 20, and the arc shape is formed. On the curved inner surface 20a of the lower frame 20, a plate-shaped curved nut 22 slidable in the bending direction along the inner surface 20a is provided, and the ceiling suspension bolt 4 or the anti-sway brace suspension bolt 23 is provided on the plate-shaped curved nut 22. It is screwed through the long hole 21, A plate-shaped curved washer 26 is attached along the curved outer surface 20b of the arc-shaped curved lower frame 20, and the ceiling suspension bolt 4 or the brace suspension bolt 23 is used for the plate-shaped curved washer 26 and the arc-shaped curved lower frame 20. The plate-shaped curved nut 22 is screwed into the plate-shaped curved nut 22 through the elongated hole 21 pierced through the hole, and the lock nut 27 is screwed into the ceiling suspension bolt 4 or the steady brace suspension bolt 23 so that the lock nut 27 is fixed to the plate. The ceiling suspension bolt 4 or the anti-sway brace suspension bolt 23 is arranged in a predetermined suspension direction and locked by being pressed against the curved washer 26.

According to the ninth aspect of the present invention, as shown in FIGS. 1 and 7 to 12, a steel frame purlin 3 is fixed to a steel frame roof frame 2 provided at a lower portion of a roof material 1 at right angles. In a suspension device such as a ceiling suspension bolt in which a ceiling suspension bolt 4 or a suspension bolt suspension bracket 5A for suspending the suspension brace suspension bolt 23 is attached to the steel frame purlin 3, the steel frame purlin 3 is the steel frame roof frame. An angle steel 3A having an L-shaped cross section or a channel steel 3B having a U-shaped cross section having a horizontal piece 6 abutting on the frame 2 and a vertical piece 7 standing upright on the frame 2 (a part of the angle steel 3A shown in FIG. It is taken out in the direction of the arrow to show the channel steel 3B instead of the angle iron 3A.), And a suspension bolt suspension bracket for suspending the ceiling suspension bolt 4 or the anti-sway brace suspension bolt 23 on these steel purlins 3. To attach 5A Therefore, as shown in FIG. 8, FIG. 11 or FIG. 12, the hanging bolt suspension bracket 5A has an upper frame 12, a vertical frame 13, a lower frame 20, and an opening 15 facing the vertical frame 13 in a horizontal cross section. The opening 15 is inserted into the crosspiece 6 of the steel purlin 3, and a pressing bolt 16 for pressing the upper surface of the crosspiece 6 is screwed into the upper frame 12 to form the upper frame 12. The suspension bolt suspension bracket is pressed and supported by the horizontal piece of the steel purlin by a pressing bolt 16 screwed from 12, and the suspension bolt suspension bracket 5A is provided between the suspension bolt suspension bracket 5A and the steel purlin 3. A fall prevention bolt 10 for preventing the steel frame from falling off from the purlin 3 is interposed. The fall prevention bolt 10 is arranged along the lower surface of the cross piece 6 of the angle iron 3A or the groove steel 3B. Established Two mounting bolt portions 8, two regulating bolt portions 9 which rise vertically and are disposed along the vertical surface 7 a side of the vertical piece 7 of the angle iron 3 A or the channel steel 3 B; A connecting portion 9a for connecting the rising ends of the two regulating bolt portions 9 together in a bifurcated manner. As shown in FIGS. 8, 11 or 12, the lower frame 20 of the suspension bolt suspension bracket 5A is made of a steel frame. The roof frame 2 is formed in an arc shape curved in an arc shape in the longitudinal direction, and a long hole 21 opened in the curve direction is formed through the lower portion 20 in the arc shape lower frame 20, and the arc shape is formed. On the curved inner surface 20a of the lower frame 20, a plate-shaped curved nut 22 slidable in the bending direction along the inner surface 20a is provided, and the ceiling suspension bolt 4 or the anti-sway brace suspension bolt 23 is mounted on the plate-shaped curved nut 22. It is screwed through the long hole 21, As shown in FIG. 8, FIG. 11 or FIG. 12, a plate-shaped curved washer 26 is attached along the curved outer surface 20 b of the arc-shaped curved lower frame 20, and the ceiling suspension bolt 4 or the anti-sway brace suspension bolt 23 is The plate-shaped curved nut 22 is screwed into the plate-shaped curved nut 22 through the elongated hole 21 penetrating the plate-shaped curved washer 26 and the arc-shaped curved lower frame 20, and the lock nut 27 is suspended by the ceiling suspension bolt 4 or the anti-sway brace. When the lock nut 27 is screwed into the bolt 23 and pressed against the plate-shaped curved washer 26, the ceiling suspension bolt 4 or the anti-sway brace suspension bolt 23 is arranged and locked in a predetermined suspension direction, As shown in FIG. 10 and FIG. 12, the steady rest brace suspension bolt 23 is composed of a vane plate bolt 23, which is fixed to a vane plate portion 23 a of the vane plate bolt 23. Braces 24 are secured, it is made of a configuration in which the lower end 24a of the braces, which are secured by fasteners 25 to the field edge receiving U.

In the invention according to claim 10 , as shown in FIGS. 1, 7 to 12, a steel frame purlin 3 is fixed orthogonally to a steel frame frame 2 disposed below the roof material 1. In a suspension device such as a ceiling suspension bolt in which a ceiling suspension bolt 4 or a suspension bolt suspension bracket 5A for suspending the suspension brace suspension bolt 23 is attached to the steel frame purlin 3, the steel frame purlin 3 is the steel frame roof frame. An angle steel 3A having an L-shaped cross section or a channel steel 3B having a U-shaped cross section having a horizontal piece 6 abutting on the frame 2 and a vertical piece 7 standing upright on the frame 2 (a part of the angle steel 3A shown in FIG. It is taken out in the direction of the arrow to show the channel steel 3B instead of the angle iron 3A.), And a suspension bolt suspension bracket for suspending the ceiling suspension bolt 4 or the anti-sway brace suspension bolt 23 on these steel purlins 3. Attach 5A 8, 11 or 12, the suspension bolt suspension bracket 5A has an upper frame 12, a vertical frame 13, a lower frame 20, and an opening 15 opposed to the vertical frame 13 in a horizontal cross section. The opening 15 is inserted into the crosspiece 6 of the steel purlin 3, and a pressing bolt 16 for pressing the upper surface of the crosspiece 6 is screwed into the upper frame 12 to form the upper frame 12. The suspension bolt suspension bracket is pressed and supported by the horizontal piece of the steel purlin by a pressing bolt 16 screwed from 12, and the suspension bolt suspension bracket 5A is provided between the suspension bolt suspension bracket 5A and the steel purlin 3. A fall prevention bolt 10 for preventing the steel frame from falling off from the purlin 3 is interposed. The fall prevention bolt 10 is arranged along the lower surface of the cross piece 6 of the angle iron 3A or the groove steel 3B. Setting Two mounting bolts 8, and two regulating bolts 9, which stand perpendicularly thereto and are disposed along the vertical surface 7 a side of the vertical piece 7 of the angle iron 3 A or the channel steel 3 B, A connecting portion 9a for connecting the rising ends of the two regulating bolt portions 9 together in a bifurcated manner. As shown in FIGS. 8, 11 or 12, the lower frame 20 of the suspension bolt suspension bracket 5A is made of a steel frame. The roof frame 2 is formed in an arcuate shape curved in an arcuate shape in the longitudinal direction, and the arcuate curve lower frame 20 is provided with a long hole 21 opening in the curve direction. On the curved inner surface 20a of the lower frame 20, a plate-shaped curved nut 22 slidable in the bending direction along the inner surface 20a is provided, and the ceiling suspension bolt 4 or the anti-sway brace suspension bolt 23 is provided on the plate-shaped curved nut 22. Screwed through the slot 21 As shown in FIG. 8, FIG. 11, or FIG. 12, a plate-shaped curved washer 26 is attached along the curved outer surface 20b of the arc-shaped curved lower frame 20, and the ceiling suspension bolt 4 or the anti-sway brace suspension bolt 23 is attached. The plate-shaped curved nut 22 is screwed into the plate-shaped curved nut 22 through the elongated hole 21 penetrating the plate-shaped curved washer 26 and the arc-shaped curved lower frame 20, and the lock nut 27 is fixed to the ceiling suspension bolt 4 or the anti-sway brace. When the lock nut 27 is screwed into the suspension bolt 23 and pressed against the plate-shaped curved washer 26, the ceiling suspension bolt 4 or the steady brace suspension bolt 23 is arranged and locked in a predetermined suspension direction, As shown in FIGS. 10 and 12, the anti-sway brace suspending bolt 23 is composed of a blade bolt 23, and is fixed to a blade portion 23 a of the blade bolt 23. Use braces 24 are secured, the braces of a lower end portion 24a is field edge receiving Ri Na is secured by fasteners 25 to the U, as shown in FIG. 10, the hanger rod suspension brackets 5A for suspending the ceiling hanging bolts 4 A featherboard is attached to a steel purlin 3 fixed to a steel roof frame 2 and is attached to another steel purlin 3 which is fixed on an extension of the steel frame 2 or another steel frame 2. The suspension bolt suspension bracket 5A for suspending the bolt 23 is attached, and the brace 24 for preventing the swing is fixed to the blade plate bolt 23.

  According to the invention of claim 1, in the steel purlin 3 made of the angle steel 3A having an L-shaped cross section or the channel steel 3B having a U-shaped cross section shown in FIG. 2, a steel frame made of an H-shaped steel as shown in FIG. Even if there is no flange portion 3a for hooking the hook portion 36a of the captive bolt 36 as in the purlin 3, as shown in FIGS. 2 and 3, the L-shaped chevron forming the steel frame purlin 3. The steel purlin 3 made of steel 3A or the U-shaped channel steel 3B uses a horizontal piece 6 abutting on the steel frame 2 and a vertical piece 7 standing upright on the roof frame 2 as shown in FIG. As shown in FIG. 5, two mounting bolts 8 are disposed between the steel purlin 3 and the ceiling suspension bolt suspension bracket 5 along the lower surface of the horizontal piece 6 and rise vertically to the mounting bolts. Arranged along the longitudinal side of the vertical piece 7 of the angle iron 3A or the channel steel 3B. The two mounting bolts 8 are attached to the ceiling suspension bolt suspension bracket 5 with nuts 11 and the two control bolts 9 are interposed. 9 is brought into contact with the vertical surface 7a (FIG. 3) of the vertical piece 7 of the angle iron 3A or the channel steel 3B, so that the ceiling suspension bolt suspension bracket 5 is urged in the falling direction from the steel frame purlin 3. Also, the two restricting bolt portions 9 of the falling-off prevention bolts 10 fixed to the ceiling suspension bolt suspension brackets 5 with the nuts 11 abut against the vertical pieces 7 of the steel purlin 3 to suspend the ceiling suspension bolts. The bracket 5 is restricted by the falling-off prevention bolt 10 and can be prevented from falling off from the steel frame purlin 3 even if it receives an external pressure such as an earthquake.

  Moreover, in the present invention, as shown in FIG. 1, FIG. 4 or FIG. 6, the rising end portions of the two restriction bolt portions 9 of the falling-off prevention bolt 10 are integrally connected to each other by a connecting portion 9a in a forked manner. Therefore, even if the two regulating bolt portions 9 reinforce each other and receive a pressure such as vibration from the outside, the vertical piece of the angle iron 3A or the channel steel 3B which is the steel purlin 3 is formed. The ceiling 7 can be firmly supported without breaking the abutment restriction state of the 7 on the vertical surface 7a.

  If the rising end portions of the two regulating bolt portions 9 are independent without being connected to each other, each independent regulating bolt portion 9 forming the two regulating bolt portions 9 is independently applied to the external pressure. Therefore, when a strong external pressure is applied, each of the individual regulation bolts 9 loses the external pressure, and the vertical piece of the angle steel 3A or the channel steel 3B which is the steel purlin 3. 7 causes the contacting state of the vertical surface 7a to be destroyed, collapses in the horizontal direction, causes the falling-off prevention bolts to separate from the steel purlin 3 and the ceiling suspension bolt suspension bracket 5 to fall off the steel purlin 3. It is expected that

According to the present invention , as shown in FIG. 3, the ceiling suspension bolt suspension bracket 5 has an upper frame 12, a vertical frame 13, a lower frame 14, and an opening 15 opposed to the vertical frame 13 and has a U-shaped cross section. , The opening 15 is inserted into the horizontal piece 6 of the steel purlin 3, and the lower end 16 a of the pressing bolt 16 screwed into the upper frame 12 and the upper end of the ceiling suspension bolt 4 screwed into the lower frame 14. Since the horizontal piece 6 is sandwiched between the part 4a and the ceiling suspension bolt suspension bracket 5, the structure of the ceiling suspension bolt 5 is simple, and the steel frame purlin 3 is simply screwed into the pressing bolt 16 and the ceiling suspension bolt 4. Therefore, the ceiling suspension bolt suspension bracket 5 can be quickly and easily attached to the steel frame purlin 3.

According to the second aspect of the invention, the function and effect of the first aspect are exhibited, and as shown in FIGS. 3 and 4, the lower frame 14 of the ceiling suspension bolt suspension bracket 5 is attached to the opening 15 side. An upright frame 17 that abuts on the lower surface side of the horizontal piece 6 of the steel frame purlin 3 is protruded, and two mounting bolt portions 8 of the falling-off prevention bolts 10 extend over the upright frame 17 and the vertical frame 13. The two mounting bolts 8 are precisely arranged along the lower surface side of the horizontal piece 6 of the steel purlin 3 by being inserted through, and the two mounting bolts 8 projecting from the vertical frame 13 are provided. By screwing the nut 11 into the screw portion 8a, the two regulating bolt portions 9 of the captive bolt 10 are strongly pressed against the vertical piece 7 of the steel purlin 3, and the suspension bolt suspension bracket 5 is regulated by the captive bolt 10. Iron against excessive external pressure such as earthquakes Not be detached from the main house manufacturing 3.

  Further, the falling-off prevention bolt 10 falls off over the upright frame 17 and the vertical frame 13 of the ceiling suspension bolt suspension bracket 5 in a state where the two regulating bolt portions 9 are applied to the vertical piece 7 of the steel purlin 3. Since the two mounting bolts 8 of the prevention bolt 10 are simply inserted and the nuts 11 are only fixed, the mounting operation is simple, and the ceiling suspension bolt suspension bracket 5 is firmly mounted on the steel frame 3. Can be.

According to the third aspect of the present invention, the function and effect of the first aspect are exhibited, and as shown in FIGS. 5 and 6, the horizontal piece 6 of the steel frame purlin 3 is mounted on the lower frame 14 of the ceiling suspension bolt suspension bracket 5. A pair of screwing pieces 18 projecting from the surface of the horizontal piece 6 are projected from the lower surface of the horizontal piece 6 and are fixed to the horizontal piece 6 by a drill screw 19 screwed into the horizontal piece 6. The suspension bolt suspension bracket 5 can also be firmly attached to the steel purlin 3.

According to the invention of claim 4 , as shown in FIGS. 1 and 7 to 12, a steel purlin 3 made of an angled steel 3A having an L-shaped cross section or a channel steel 3B having a U-shaped cross section shown in FIG. As shown in FIGS. 2 and 3, even if there is no flange 3a that hooks the hook 36a of the captive bolt 36 as in the steel purlin 3 made of H-shaped steel as shown in FIG. The steel purlin 3 of the L-shaped angle steel 3A or the U-shaped channel steel 3B which forms the steel purlin 3 has a horizontal piece 6 which is in contact with the steel frame 2 and a vertical piece. As shown in FIG. 1, two mounting bolts are provided between the steel purlin 3 and the suspension bolt suspension bracket 5 </ b> A along the lower surface side of the horizontal piece 6 by using the vertical piece 7 rising up to The portion 8 and the vertical piece of the angle iron 3A or the channel steel 3B which rises perpendicularly thereto. The two mounting bolts 8 are attached to the hanging bolt suspension bracket 5A by the nuts 11 and the two bolts 9 are provided along the vertical surface 7a. The hanging bolt suspension bracket 5A falls off the steel purlin 3 by the two regulating bolt portions 9 being brought into contact with the vertical surface 7a of the vertical piece 7 of the angle iron 3A or the channel steel 3B. Even when biased in the direction, the two restricting bolt portions 9 of the falling-off prevention bolts 10 fixed to the suspension bolt suspension brackets 5 with the nuts 11 come into contact with the vertical pieces 7 of the steel frame purlin 3, thereby suspending. The bolt suspension bracket 5A can be prevented from falling off from the steel frame purlin 3 even though it is subjected to external pressure such as an earthquake by being restricted by the fall prevention bolt 10.

  Moreover, in the present invention, as shown in FIG. 1 or FIG. 9, the rising end portions of the two restriction bolt portions 9 of the falling-off prevention bolt 10 are integrally connected to each other by a connecting portion 9a in a bifurcated manner. Therefore, even if the two regulating bolt portions 9 reinforce each other and receive a pressure such as vibration from the outside, the vertical piece 7 of the angle iron 3A or the channel steel 3B, which is the steel frame 3, is vertical. It is possible to firmly support the suspension bolt suspension bracket 5A without destroying the contact restriction state on the surface.

Still further , according to the present invention , as shown in FIG. 8, FIG. 11 or FIG. 12, the hanging bolt suspension bracket 5A has an opening facing the upper frame 12, the vertical frame 13, the lower frame 20, and the vertical frame 13. A bracket body 5b having a U-shaped cross section is formed with the bracket 15 and the opening 15 is inserted into the transverse piece 6 of the steel purlin 3 and the upper surface of the transverse piece 6 is pressed by a pressing bolt 16 screwed into the upper frame 12. Because of the pressing, the suspension bolt suspension bracket 5A is pressed and supported by the steel purlin 3 by the pressing bolt 16, so that the suspension bolt suspension bracket 5A is firmly supported by the steel purlin 3. Will be.

According to the invention according to claim 5 , in particular, as shown in FIG. 8, FIG. 11, or FIG. 12, the two mounting bolt portions 8 of the falling-off prevention bolts 10 extend over the lower frame 20 and the vertical frame 13. The two mounting bolt portions 8 are accurately arranged along the lower surface side of the horizontal piece 6 of the steel purlin 3 by being penetrated, and the two mounting bolt portions protruding from the vertical frame 13. By screwing the nut 11 into the threaded portion 8a, the two regulating bolts 9 of the captive bolt 10 are strongly pressed against the vertical piece 7 of the steel purlin 3 and the suspension bolt suspension bracket 5 is attached to the captive bolt 10 And the steel purlin 3 does not fall off even under an excessive external pressure such as an earthquake.

According to the invention of claim 6 , in particular, as shown in FIG. 8, FIG. 11, or FIG. 12, the lower frame 20 of the suspension bolt suspension bracket 5A is curved in an arc shape in the longitudinal direction of the steel frame frame 2. In addition to being formed in an arcuately curved shape, an elongated hole 21 that opens in the curved direction is penetrated in the arcuately curved lower frame 20, and a curved inner surface 20a of the arcuately curved lower frame 20 has an inner surface 20a. A plate-shaped bending nut 22 slidable in the bending direction along the curved hole is provided, and the ceiling suspension bolt 4 or the anti-sway brace suspension bolt 23 is screwed into the plate-shaped curved nut 22 through the elongated hole 21. As shown in FIG. 8 or FIG. 11, without being affected by the inclination angle of the steel-frame roof frame 2 which is inclined at various inclination angles in accordance with the inclination of the roofing material 1 or arranged horizontally. To the steel purlin 3 which is mounted perpendicular to this Ri together with the bolts suspended ceiling hanger bolts 4 via a bracket 5A can be attached to the vertical state, as shown in FIG. 12, can be mounted freely bracing struts hanger bolts 23 in a predetermined direction of inclination.

According to the invention of claim 7 , in particular, as shown in FIG. 8, FIG. 11 or FIG. 12, the hanging bolt suspension bracket 5A is integrated with the lower frame 20 between the upper frame 12 and the lower frame 20. An intermediate frame 20A is formed, the intermediate frame 20A is applied to the lower surface side of the horizontal piece 6 of the steel purlin 3, and the suspension bolt suspension is performed by a drill screw 16A screwed into the horizontal piece 6 from the intermediate frame 20A. Since the arc-shaped curved lower frame 20 of the bracket 5A is fixed to the horizontal piece 6 of the steel frame 3, the suspension bolt suspension bracket 5A can be more firmly supported by the steel frame 3. . In particular, since the ceiling suspension bolt 4 or the anti-sway brace suspension bolt 23 that supports a heavy ceiling material is suspended in the arc-shaped curved lower frame 20, the arc-shaped curved piece 20 may be deformed in the hanging direction. However, when the intermediate frame 20A integrated with the arc-shaped curved piece 20 is screwed into the horizontal piece 6 with a drill screw 16A, the arc-shaped curved piece 20 is stably supported by the intermediate frame 20, and the arc-shaped curved piece 20 is formed. The deformation of the piece 20 can be reliably prevented.

According to the invention of claim 8 , in particular, as shown in FIG. 8, FIG. 11, or FIG. 12, the plate-shaped curved washer 26 is attached along the curved outer surface 20b of the arc-shaped curved lower frame 20, and the ceiling The suspension bolt 4 or the brace suspension bolt 23 is screwed into the plate-shaped curved nut 22 through the elongated hole 21 penetrating the plate-shaped curved washer 26 and the arc-shaped curved piece 20, and the lock nut 27. Is screwed into the ceiling suspension bolt 4 or the steady rest brace suspension bolt 23 and the lock nut 27 is pressed against the plate-shaped curved washer 26 so that the ceiling suspension bolt 4 or the steady rest brace suspension bolt 23 is moved in a predetermined suspension direction. And the ceiling suspension bolt 4 or the steady rest brace suspending bolt 23 and the steady rest brace 24 fixed thereto are suspended in the hanging bolts. Rigidly suspended preparative suspension brackets 5A, it is possible to exhibit sufficient resistance to excessive external pressure such as an earthquake.

According to the ninth aspect of the present invention, in particular, as shown in FIGS. 10 and 12, the anti-sway brace suspension bolt 23 is made of a blade plate bolt 23, and the anti-sway brace 24 is attached to a blade plate portion 23 a of the blade plate bolt 23. Is fixed, and the lower end 24a of the brace is fixed to the field support U by a fixing tool 25. Therefore, the ceiling attached to the ceiling suspension bolt 4 suspended by the suspension bolt suspension bracket 5 attached to the steel purlin 3 Since the material is also supported by the anti-sway brace 24 suspended by the suspension bolt suspension bracket 5 attached to another steel purlin 3, the anti-sway brace is subjected to an excessive external pressure such as an earthquake. By the reinforcing effect of 24, it is possible to reliably prevent the ceiling material from falling off from the ceiling suspension bolt 4.

According to the invention according to claim 10 , in particular, as shown in FIG. 10, the suspension bolt suspension bracket 5A for suspending the ceiling suspension bolts 4 is attached to the steel frame 3 and another steel frame. 3 is provided with the suspension bolt suspension bracket 5A for suspending the blade bolt 23, and the brace 24 is fixed to the suspension bolt 23, so that the suspension bolt 4A has the same structure as the suspension bolt 5A. The suspension brace 24 can be suspended to provide compatibility, and the suspension work can be performed efficiently.

It is a perspective view of a fall prevention bolt which is an important section of the present invention. It is a use explanatory view of the ceiling suspension bolt suspension device concerning the present invention. The structure in which the angle steel 3A, which is the steel frame purlin 3 surrounded by b, is replaced by a channel steel 3B, which is a different shape steel as shown by an arrow, is shown in a partially enlarged view. It is an expanded sectional front view of the further important part of this invention. FIG. 4 is a sectional view taken along line AA of FIG. 3. FIG. 4 is a sectional view taken along line BB of FIG. 3. It is a principal part side view. It is an explanatory view of a use state of another embodiment of the present invention. It is an expanded sectional front view of the principal part. It is a principal part side view. It is an explanatory view of a use state of still another embodiment of the present invention. It is an expanded sectional view of the part enclosed by c of FIG. It is an expanded sectional view of the part enclosed by d of FIG. It is a description of a use state of a conventional example.

  A preferred embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 2, a first embodiment of the present invention comprises a steel frame purlin 3 mounted orthogonally to a steel frame 2. The present invention relates to a ceiling suspension bolt suspension device in which a suspension bolt suspension bracket 5 is attached to a vehicle, and the ceiling suspension bolt 4 is suspended therefrom.

  Although the steel frame purlin 3 may be made of an H-shaped steel as shown in FIG. 13, the steel frame purlin 3 to which the present invention is applied has an L-shaped angle iron 3 A or an arrow as shown in FIG. 1. As shown in the drawing, it is a channel steel 3B having a U-shaped cross section.

  Conventionally, as described in the section of the prior art, when the H-shaped steel is used as the steel frame purlin 3 as shown in FIG. 13, the H-shaped steel purlin 3 is used to hook the hook portion 36 a of the drop prevention bolt 36. The T-shaped flange 3a is present in the H-section steel, and the hook 36a of the captive bolt 36 is locked to the flange 3a so that the suspension bolt suspension bracket 35 can be easily dropped from the steel frame 3. However, the steel frame 3 does not have a flange 3a for hooking the hook 36a of the captive bolt 36, for example, an angle steel 3A having an L-shaped cross section as shown in FIG. Since the T-shaped flange portion such as the H-shaped steel does not exist in the channel steel 3B, the conventional drop prevention bolt 36 could not be locked.

  In the ceiling suspension bolt suspension device according to the present invention, as the steel frame purlin 3, the angle iron 3 A having an L-shaped cross section without the flange portion 3 a for locking the hook portion 36 a of the above-mentioned captive bolt 36 or b in FIG. 1. The portion surrounded by is taken out in the direction of the arrow, and is intended for a channel steel 3B (including a channel steel with a lip) having a U-shaped cross section instead of the angle iron 3A. And a steel purlin 3 made of heavy-duty steel having a horizontal piece 6 abutting on the roof frame 2 made of steel and a vertical piece 7 standing upright on the same.

  In FIG. 2 et seq., The description will be made mainly on the basis of the steel frame purlin 3 made of the angle iron 3A having the L-shaped cross section, but it is naturally applicable to the channel steel 3B having the U-shaped cross section.

  First, if emphasizing the characteristic features of the present invention, the falling-off preventing bolt 10 shown in FIG. 1 is used in all of the first embodiment shown in FIGS. 2 to 6 and the second embodiment shown in FIGS. The ceiling bracket 5 (FIGS. 2 to 6) and the ceiling between the suspension bolt suspension bracket 5A (FIGS. 7 to 12) and the steel purlin 3 (angle iron 3A, channel steel 3B). The purpose of the present invention is to interpose a falling-off prevention bolt 10 for preventing the suspension bolt suspension bracket 5 or the suspension bolt suspension bracket 5A from falling off the steel purlin 3. As an example, the falling-off prevention bolt 10 is formed by bending a steel material having a diameter of about 6 mm.

  The roofing material 1 made of a roof base, a roof board, or the like has a horizontal shape as shown in the figure, but is generally formed at various inclination angles, and is inclined in accordance with the inclination angle of the roofing material 1. A steel-frame roof frame 2 made of H-shaped steel is provided as a girder material from a high place to a low portion, and a steel-frame main frame 3 which is a horizontal member orthogonal to the upper surface of the steel-frame roof frame 2. Is fixed by a suitable fastener (not shown) as in the prior art. A ceiling suspension bolt suspension bracket 5 for suspending the ceiling suspension bolts 4 is attached to the steel frame 3 and the ceiling suspension bolts 4 are suspended therefrom. The hanger H attaches the ridge holder U, the ridge N is attached to the ridge receiver U by the clip C, and the ceiling material T is attached to the ridge N by screws or adhesive.

  As shown in FIG. 1 or FIG. 2 and FIG. 3, the drop-off prevention bolt 10 is a steel frame purlin 3 that is the angle steel 3A or the groove steel 3B (not shown in FIG. 2). )), And two mounting bolts 8 arranged along the back side of the horizontal piece 6 and rising perpendicularly to the mounting bolts 8 and arranged on the back side of the vertical piece 7 of the angle steel 3A or the channel steel 3B. As shown in FIG. 1 or FIG. 6, the two regulating bolt portions 9 to be provided and a downward U-shaped joint connecting the rising ends of the regulating bolt portions 9 to each other in a forked manner. A connecting portion 9a, two mounting bolt portions 8 are attached to the suspension bolt suspension brackets 5 by nuts 11 respectively, and the two regulating bolt portions 9 are formed of the angle iron 3A or the channel steel 3B. It comes into contact with the vertical surface 7a of the vertical piece 7 and, as described later, Even if the bolt suspension bracket 5 is urged in the direction of falling off from the steel purlin 3, the two restricting bolt portions 9 of the fall-off prevention bolt 10 fixed to the nut 11 by the suspension bolt suspension bracket 5 are replaced with the steel purlin 3. Abuts against the vertical piece 7, and the suspension bolt suspension bracket 5 is firmly regulated by the fall-off prevention bolt 10 so as to prevent the fall-off from the steel frame purlin 3 even if it receives external pressure such as an earthquake. it can. Although a washer 11a is provided on the tightening surface of the nut 11, it is preferable in terms of efficiency to employ the nut 11 with the washer 11a integrally formed with the nut 11 as shown in the figure.

  Further, according to the present invention, as shown in FIG. 1 or FIG. 6, the rising ends of the two restricting bolt portions 9 of the falling-off prevention bolt 10 are forked integrally with each other by a downwardly U-shaped connecting portion 9a. Even if the two regulating bolts 9 reinforce each other and receive a pressure such as vibration from the outside, the angle steel 3A or the channel steel 3B as the steel frame 3 It is possible to firmly support the ceiling suspension bolt suspension bracket 5 without breaking the contact restriction state with respect to the back surface of the vertical piece 7.

  Then, as shown in FIG. 3, the ceiling suspension bolt suspension bracket 5 forms a bracket main body 5a having a U-shaped cross section in a horizontal direction with an upper frame 12, a vertical frame 13, a lower frame 14, and an opening 15 facing the vertical frame 13. Then, the opening 15 of the bracket body 5a is inserted into the horizontal piece 6 of the steel purlin 3 and the lower end portion 16a of the pressing bolt 16 screwed downward into the upper frame 12 and the ceiling suspension bolt screwed upward into the lower frame 14. Since the horizontal piece 6 is sandwiched between the upper end 4a and the upper end 4a, the structure of the ceiling suspension bolt suspension bracket 5 is simple and the steel frame can be formed only by screwing the pressing bolt 16 and the ceiling suspension bolt 4. Since the bracket 5 can be attached to the purlin 3, the ceiling suspension bolt suspension bracket 5 can be quickly and easily attached to the steel purlin 3.

  As shown in FIGS. 3 and 4, an upright frame 17 is provided on the lower frame 14 of the ceiling suspension bolt suspension bracket 5 on the opening 15 side and in contact with the back side of the horizontal piece 6 of the steel frame purlin 3. And the two mounting bolts 8 of the falling-off prevention bolt 10 are inserted into a through hole 17a (FIG. 4) provided in the upright frame 17 and a through hole 13a (FIG. 4) provided in the vertical frame 13. The two mounting bolt portions 8 are accurately arranged on the lower surface side of the horizontal piece 6 of the steel purlin 3 by being inserted through the The nut 11 with the washer 11a is screwed into the screw portion 8a, and the mounting bolt portion 8 is pulled toward the vertical frame 13 to exert a force. As a result, the two regulating bolt portions 9 of the falling-off prevention bolt 10 become vertical pieces of the steel purlin 3. 7, and the suspension bracket 5 for the suspension bolts is Never fall off from the steel-made main house 3 against excessive external pressure, such as the regulations held in drop-off prevention bolt 10 earthquake.

  As shown in FIG. 5 and FIG. 6, a pair of screwing pieces 18 projecting from the lower frame 14 of the suspension bolt suspension bracket 5 to come into surface contact with the back surface of the horizontal piece 6 of the steel purlin 3 are projected. Is fixed to the lateral piece 6 by a drill screw 19 which is screwed into the lateral piece 6 by using a well-known drive drill socket, so that the ceiling suspension bolt suspension bracket 5 can be made of steel from this surface. It can be firmly attached to the purlin 3.

  FIG. 7 and subsequent drawings show a second embodiment of the present invention. Even if the steel roof frame 2 under the roof material 1 is arranged at various inclination angles according to the roof material 1, the steel frame roof The ceiling suspension bolt 4 or the anti-sway brace suspension bolt 23 (FIG. 10) is always suspended vertically or at a predetermined inclination angle by the suspension bolt suspension bracket 5A attached to the bone frame 2, and attached to the lower end of the ceiling suspension bolt 4. This shows a second embodiment in which a ceiling material T can be horizontally mounted via a hanger H, a clip C, a ridge receiver U, and a ridge N.

  As shown in FIG. 8 showing the main part of FIG. 7 in an enlarged manner, and further as shown in FIG. 11 or FIG. 12, in this embodiment, the lower frame 14 of the lower portion of the suspension bolt suspension bracket 5A is made of a steel roof frame. The lower frame 20 is formed integrally with an arcuate curved lower frame 20 that is curved in an arc shape in the longitudinal direction of the frame 2, and an elongated hole 21 that opens in the curving direction is formed through the lower frame 20. A plate-shaped bending nut 22 slidable in the bending direction along the inner surface 20a is provided on the curved inner surface 20a of the curved lower frame 20, and the ceiling hanging bolt 4 penetrates the elongated hole 21 through the plate-shaped curved nut 22. It is to be screwed. For this reason, the suspension bolt suspension is carried out on the steel purlin 3 mounted orthogonally to the roof frame 1 without being affected by the inclination angle of the steel roof frame 2 which is arranged at various inclination angles of the roofing material 1. The ceiling suspension bolts 4 can be freely shifted to the left and right via the brackets 5 as shown by arrows, so that the ceiling suspension bolts 4 can be mounted vertically. The plate-shaped bending nut 22 is formed in a plate shape as shown in the figure, or the plate-shaped bending nut 22 can slide in the bending direction along the curved inner surface 20 a of the arc-shaped curved lower frame 20. It also includes a thick nut having a smooth sliding surface 22a.

  Further, the hanging bolt suspension bracket 5A includes an intermediate frame 20A integrally formed with the lower frame 20 between the upper frame 12 and the lower frame 20, and the intermediate frame 20A is connected to the horizontal piece 6 of the steel frame purlin 3. And the lower curved frame 20 of the suspension bolt suspension bracket 5A is fixed to the lateral piece 6 of the steel purlin 3 by a drill screw 16A which is screwed into the lateral piece 6 from the intermediate frame 20A. The hanging bolt suspension bracket 5 </ b> A is pressed and supported by the steel purlin 3 by the pressing bolt 16. Therefore, the suspension bolt suspension bracket 5A is more firmly supported by the steel purlin 3 by the intermediate frame 20A. In particular, since the ceiling suspension bolt 4 or the anti-sway brace suspension bolt 23 that supports a heavy ceiling material is suspended in the arc-shaped curved lower frame 20, the arc-shaped curved piece 20 may be deformed in the hanging direction. However, since the intermediate frame 20A integrated with the arc-shaped curved piece 20 is fixed to the horizontal piece 6, the arc-shaped curved piece 20 is stably supported by the intermediate frame 20, and Deformation can be reliably prevented. The vertical frame 13 of the suspension bolt suspension bracket 5A has a locking hole 13a penetrating therethrough, and the front end portion 20Aa of the intermediate frame 20A is engaged with the locking hole 13a to thereby form the vertical frame 13 of the suspension bolt suspension bracket 5A. The frame 13 can also be supported.

  Also in this embodiment, the two mounting bolt portions 8 of the falling-off prevention bolt 10 are inserted through the lower frame 14 and the vertical frame 13 so as to be inserted. Are accurately arranged on the lower surface side of the horizontal piece 6 of the steel purlin 3, and the nuts 11 are screwed into the threaded portions 8 a of the two mounting bolts 8 protruding from the vertical frame 13, so that the bolts 10 The two regulating bolt portions 9 are strongly pressed and supported by the vertical pieces 7 of the steel purlin 3, and the suspension bolt suspension bracket 5 is held by the two falling-off prevention bolts 10 to prevent an excessive external pressure such as an earthquake. However, the steel purlin 3 does not fall off.

  Further, as shown in FIG. 9, the rising ends of the two regulating bolt portions 9 of the falling-off prevention bolt 10 are integrally connected to each other in a bifurcated manner by a downward U-shaped connecting portion 9a. The restriction bolt portions 9 of the book reinforce each other as in the above embodiment. Further, as shown in FIG. 9, a pair of screwing pieces 18 projecting from the lower frame 14 of the suspension bolt suspension bracket 5, which are in surface contact with the back surface of the horizontal piece 6 of the steel frame 3, are provided. If the bolt 18 is fixed to the transverse piece 6 by a drill screw 19 which is screwed into the transverse piece 6 by using a driving drill, the suspension bolt suspension bracket 5 can be firmly attached to the steel purlin 3 also from this surface. What can be done is the same as the above embodiment.

  8 and 11, a plate-shaped curved washer 26 is attached along the curved outer surface 20b of the arc-shaped curved lower frame 20, and the ceiling suspension bolt 4 is attached to the plate-shaped curved washer 26 and the circle. The plate-shaped curved nut 22 is screwed into the plate-shaped curved nut 22 through the elongated hole 21 penetrated through the arc-shaped curved piece 20, and the lock nut 27 is screwed into the ceiling suspension bolt 4 so that the lock nut 27 is fixed to the plate-shaped curved washer. 26, the ceiling suspension bolts 4 are arranged in a predetermined suspension direction and locked. For this reason, the ceiling suspension bolt 4 is firmly suspended by the suspension bolt suspension bracket 5, and can exhibit sufficient durability against excessive external pressure such as an earthquake. The washer pressing surface 26a of the lock nut 27 for pressing the plate-shaped curved washer 26 is preferably formed as a flat surface as shown in the drawing, so that the lock nut 27 can be brought into contact with the plate-shaped curved washer 26 by surface contact as much as possible. The plate-shaped curved washer 26 is uniformly pressed and locked, and the ceiling suspension bolt 4 can be stably suspended.

  FIG. 10 shows still another embodiment of the present invention, in which a suspension bolt suspension bracket 5A is attached to a steel purlin 3 attached to a steel roof frame 2 in a horizontal state, and FIG. The enclosed portion is enlarged, and the ceiling suspension bolt 4 is suspended vertically as shown in FIG. FIG. 11 shows an embodiment in which a ceiling suspension bolt 4 is vertically suspended on a suspension bolt suspension bracket 5A which is also horizontally attached to a steel frame purlin 3 in a horizontal state. In the embodiment shown in FIG. A ceiling suspension bolt 4 is vertically suspended on a suspension bolt suspension bracket 5A attached to an inclined steel purlin 3 attached to an inclined steel frame 2 which is inclined.

  In this embodiment, as shown in FIG. 10, separately from the suspension bolt suspension bracket 5 </ b> A that is attached to suspend the ceiling suspension bolt 4 vertically by the suspension bolt suspension bracket 5 </ b> A, The suspension bolt suspension bracket 5 is attached to another steel purlin 3 which is arranged adjacent to the steel frame. Then, as shown in FIG. 12 which is an enlarged sectional view of a portion surrounded by d in FIG. 10, the suspension bolt 5 slides along the curved inner surface 20 a of the arc-shaped curved lower frame 20 in the bending direction. A blade bolt 23 is screwed into the plate-like curved nut 22 which is provided so as to penetrate through the elongated hole 21, and the blade plate 23 a is fixed to the blade bolt 23 by a fixture 25 such as a bolt made of a channel steel plate. The brace 24 is attached, and the lower end 24a of the brace is fixed to the field margin receiver U by the fixing tool 25 as shown in FIG. For this reason, the ceiling material T to be mounted on the ceiling suspension bolts 4 suspended by the suspension bolt suspension bracket 5 attached to the steel frame purlin 3 is a suspension bolt attached to another adjacent steel frame purlin 3 disposed adjacently. Since it is also supported by the steady brace 24 suspended by the suspension bracket 5, even if it receives an excessive external pressure such as an earthquake, it is possible to reliably prevent the ceiling material T from dropping off from the suspension bolt suspension bracket 5. it can.

  Further, even in the embodiment shown in FIG. 12, a plate-shaped curved washer 26 is attached along the curved outer surface 20b of the arc-shaped curved lower frame 20, and the blade plate bolt 23 is formed by the plate-shaped curved washer 26 and the arc-shaped. The plate-shaped curved nut 22 is screwed into the plate-shaped curved nut 22 through the elongated hole 21 penetrated through the curved lower frame 20, and a lock nut 27 is screwed into the blade plate bolt 23 to lock the plate-shaped curved washer 26. Is pressed in contact with the blade plate bolt 23 and the anti-sway brace 24 formed of a channel steel plate connected thereto in a predetermined inclination direction and locked, so that the ceiling material T attached to the suspension bolt suspension bracket 5 Are held by the brace 24 for steadying, and can exhibit sufficient durability against excessive external pressure such as an earthquake. Also in this embodiment, as shown in FIG. 12, the falling-off prevention bolt 10 has a function of preventing the suspension bolt suspension bracket 5 from falling off by the same structure as described above. The description of the components will be omitted by giving the same reference numerals as those of the above-described embodiment.

DESCRIPTION OF SYMBOLS 1 Roofing material 2 Steel roof frame 3 Steel purlin 3A Angle steel 3B Channel steel 4 Ceiling suspension bolt 4a Upper end part of ceiling suspension bolt 5 Ceiling suspension bolt suspension bracket 5A Suspension bolt suspension bracket 6 Horizontal piece 7 Vertical piece 8 Mounting Bolt portion 9 Restriction bolt portion 9a Connecting portion 10 Captive bolt 10a Screw portion 11 Nut 12 Upper frame 13 Vertical frame 14 Lower frame 15 Opening 15a Bracket body 15b Bracket body 16 Press bolt 16a Lower end 16A of press bolt Drill screw 17 Upright Frame 18 Screwing piece 19 Drill screw 20 Arc-shaped curved lower frame 20A Intermediate frame 20b Curved outer surface 21 Long hole 22 Plate-shaped curved nut 23 Blade plate bolt (anti-sway brace hanging bolt)
24 Brace for steadying 25 Fixture 26 Plate-shaped curved washer 27 Lock nut

Claims (10)

A ceiling suspension in which a steel frame purlin is fixed at right angles to a steel frame roof frame provided below the roofing material, and a ceiling suspension bolt suspension bracket for suspending ceiling suspension bolts is attached to the steel frame purlin. In the bolt suspension device, the steel purlin is made of an angle-shaped steel section having an L-shaped cross section or a U-shaped channel steel section having a horizontal piece that abuts against the roof frame made of steel and a vertical piece that rises perpendicularly thereto. In attaching the ceiling suspension bolt suspension bracket to these steel purlins, the ceiling suspension bolt suspension bracket includes an upper frame, a vertical frame, a lower frame, and an opening facing the vertical frame. was inserted into the crosspiece of the steel-made main house has become to sandwich the crosspiece in the upper end portion of the ceiling hanger bolts screwed to the lower end portion and the lower frame of the pressing bolt screwed into the upper frame, the ceiling bolt suspension brackets A captive bolt for preventing the ceiling suspension bolt suspension bracket from dropping off the steel purlin is interposed between the steel frame and the steel purlin, and the captive bolt is provided with the crosspiece of the angle steel or the channel steel. Mounting bolts arranged along the lower surface side of the armature, and two regulating bolts which stand vertically and are arranged along the longitudinal side of the vertical piece of the angle iron or the channel steel. And a connecting portion for integrally connecting the rising ends of the two regulating bolt portions to each other in a bifurcated manner. Two mounting bolt portions are attached to the ceiling suspension bolt suspension bracket by nuts, respectively. Is abutted against the vertical surface of the vertical piece of the angle iron or the channel steel, and in this state, the ceiling suspension bolt suspension bracket is mounted on a steel purlin while being regulated by the captive bolt. Heaven Hanger bolt suspension system. A ceiling suspension in which a steel frame purlin is fixed at right angles to a steel frame roof frame provided below the roofing material, and a ceiling suspension bolt suspension bracket for suspending ceiling suspension bolts is attached to the steel frame purlin. In the bolt suspension device, the steel purlin is made of an angle-shaped steel section having an L-shaped cross section or a U-shaped channel steel section having a horizontal piece that abuts against the roof frame made of steel and a vertical piece that rises perpendicularly thereto. In attaching the ceiling suspension bolt suspension bracket to these steel purlins, the ceiling suspension bolt suspension bracket includes an upper frame, a vertical frame, a lower frame, and an opening facing the vertical frame. The lower part of the pressing bolt inserted into the horizontal piece of the steel frame purlin and screwed into the upper frame and the upper end of the ceiling suspension bolt screwed into the lower frame are configured to clamp the horizontal piece, and the ceiling suspension bolt suspension bracket A captive bolt for preventing the ceiling suspension bolt suspension bracket from dropping off the steel purlin is interposed between the steel frame and the steel purlin, and the captive bolt is provided with the crosspiece of the angle steel or the channel steel. Mounting bolts arranged along the lower surface side of the armature, and two regulating bolts which stand vertically and are arranged along the longitudinal side of the vertical piece of the angle iron or the channel steel. And a connecting portion that integrally connects the rising ends of the two restriction bolts to each other in a bifurcated manner. The lower frame of the ceiling suspension bolt suspension bracket is located on the opening side and the lateral side of the steel frame purlin. An upright frame abutting on the lower surface of the piece is protruded, and two mounting bolt portions of the captive bolt are inserted through the upright frame and the vertical frame, thereby connecting the two mounting bolt portions to each other. Arranged along the lower surface of the horizontal piece and project from the vertical frame By screwing nuts into the threads of the two mounting bolts, the two restraining bolts of the captive bolt are pressed against the vertical piece of the steel frame, and the ceiling suspension bolt suspension bracket is made of steel with the captive bolt. A ceiling suspension bolt suspension device that is attached to a steel-frame purlin with controlled exit from the purlin . A ceiling suspension in which a steel frame purlin is fixed at right angles to a steel frame roof frame provided below the roofing material, and a ceiling suspension bolt suspension bracket for suspending ceiling suspension bolts is attached to the steel frame purlin. In the bolt suspension device, the steel purlin is made of an angle-shaped steel section having an L-shaped cross section or a U-shaped channel steel section having a horizontal piece that abuts against the roof frame made of steel and a vertical piece that rises perpendicularly thereto. In attaching the ceiling suspension bolt suspension bracket to these steel purlins, the ceiling suspension bolt suspension bracket includes an upper frame, a vertical frame, a lower frame, and an opening facing the vertical frame. The lower part of the pressing bolt inserted into the horizontal piece of the steel frame purlin and screwed into the upper frame and the upper end of the ceiling suspension bolt screwed into the lower frame are configured to clamp the horizontal piece, and the ceiling suspension bolt suspension bracket A captive bolt for preventing the ceiling suspension bolt suspension bracket from dropping off the steel purlin is interposed between the steel frame and the steel purlin, and the captive bolt is provided with the crosspiece of the angle steel or the channel steel. Mounting bolts arranged along the lower surface side of the armature, and two regulating bolts which stand vertically and are arranged along the longitudinal side of the vertical piece of the angle iron or the channel steel. And a connecting portion that integrally connects the rising ends of the two restriction bolt portions to each other in a bifurcated manner, and a pair of screws that are in surface contact with the lower surface of the horizontal frame of the steel frame purlin on the lower frame of the ceiling suspension bolt suspension bracket. projecting the locking piece, the pair of screwing pieces Ri Na is secured by drilling screws to said crosspiece, two mounting bolt portion is attached by respective nuts fixed to said ceiling hanger bolts suspension brackets, the 2 Book regulation bolt Wherein is in contact with the vertical surface of the vertical piece of angle iron or the interposition steel, ceiling bolts suspended the ceiling bolt suspension brackets in this state is restricted to the drop-off prevention bolt becomes attached to the steel-made main house apparatus. A steel-framed purlin is fixed to the steel-framed roof frame provided at the lower part of the roofing material, and a suspension bolt suspension bracket for suspending a ceiling suspension bolt or a brace suspension bolt for anti-sway is fixed to the steel-framed purlin. In a suspension device such as a ceiling suspension bolt to be attached, the steel purlin has an L-shaped angle steel or a U-shaped cross section having a horizontal piece abutting on the steel frame roof frame and a vertical piece standing upright on the horizontal piece. In attaching the suspension bolt suspension bracket to these steel purlins, the suspension bolt suspension bracket has a cross section of an upper frame, a vertical frame, a lower frame, and an opening facing the vertical frame. A laterally U-shaped bracket body is formed, the opening is inserted into the horizontal piece of the steel purlin, and a pressing bolt for pressing the upper surface of the horizontal piece is screwed into the upper frame, and the suspension bolt is used by the pressing bolt. The suspension bracket is pressed and supported by the lateral piece of the steel purlin, and the suspension bolt is provided between the suspension bolt suspension bracket and the steel purlin to prevent the suspension bolt suspension bracket from falling off the steel purlin. A bolt is interposed, and the captive bolt is provided with two mounting bolts disposed along the lower surface of the cross piece of the angle steel or the channel steel, and the angle steel or It is composed of two regulating bolts arranged along the vertical surface side of the vertical piece of the channel steel, and a connecting portion for connecting the rising ends of both regulating bolts to each other in a forked manner, The two mounting bolts are respectively attached to the suspension bolt suspension brackets with nuts, and the two regulating bolts abut against the vertical surface of the vertical piece of the angle steel or the channel steel. The hanging bolt Rack bracket ceiling hanger bolts or the like suspension system consisting attached is restricted to the drop-off prevention bolt steel-made main building. A steel-framed purlin is fixed to the steel-framed roof frame provided at the lower part of the roofing material, and a suspension bolt suspension bracket for suspending a ceiling suspension bolt or a brace suspension bolt for anti-sway is fixed to the steel-framed purlin. In a suspension device such as a ceiling suspension bolt to be attached, the steel purlin has an L-shaped angle steel or a U-shaped cross section having a horizontal piece abutting on the steel frame roof frame and a vertical piece standing upright on the horizontal piece. In attaching the suspension bolt suspension bracket to these steel purlins, the suspension bolt suspension bracket has a cross section of an upper frame, a vertical frame, a lower frame, and an opening facing the vertical frame. A laterally U-shaped bracket body is formed, the opening is inserted into the horizontal piece of the steel purlin, and a pressing bolt for pressing the upper surface of the horizontal piece is screwed into the upper frame, and the suspension bolt is used by the pressing bolt. The suspension bracket is pressed and supported by the lateral piece of the steel purlin, and the suspension bolt is provided between the suspension bolt suspension bracket and the steel purlin to prevent the suspension bolt suspension bracket from falling off the steel purlin. A bolt is interposed, and the captive bolt is provided with two mounting bolts disposed along the lower surface of the cross piece of the angle steel or the channel steel, and the angle steel or It is composed of two regulating bolts arranged along the vertical surface side of the vertical piece of the channel steel, and a connecting portion for connecting the rising ends of both regulating bolts to each other in a forked manner, The two mounting bolt portions of the captive bolts are inserted along the lower frame and the vertical frame to dispose the two mounting bolt portions along the lower surface of the horizontal piece. Screw part of two mounting bolts protruding from the vertical frame By screwing in the nuts, the two regulating bolts of the captive bolts are pressed against the vertical pieces of the steel purlin, and the ceiling suspension bolt suspension bracket is made of steel with the captive bolts restricting the escape from the steel purlin. Suspension devices such as ceiling suspension bolts attached to the main building . A steel-framed purlin is fixed to the steel-framed roof frame provided at the lower part of the roofing material, and a suspension bolt suspension bracket for suspending a ceiling suspension bolt or a brace suspension bolt for anti-sway is fixed to the steel-framed purlin. In a suspension device such as a ceiling suspension bolt to be attached, the steel purlin has an L-shaped angle steel or a U-shaped cross section having a horizontal piece abutting on the steel frame roof frame and a vertical piece standing upright on the horizontal piece. In attaching the suspension bolt suspension bracket to these steel purlins, the suspension bolt suspension bracket has a cross section of an upper frame, a vertical frame, a lower frame, and an opening facing the vertical frame. A laterally U-shaped bracket body is formed, the opening is inserted into the horizontal piece of the steel purlin, and a pressing bolt for pressing the upper surface of the horizontal piece is screwed into the upper frame, and the suspension bolt is used by the pressing bolt. The suspension bracket is pressed and supported by the lateral piece of the steel purlin, and the suspension bolt is provided between the suspension bolt suspension bracket and the steel purlin to prevent the suspension bolt suspension bracket from falling off the steel purlin. A bolt is interposed, and the captive bolt is provided with two mounting bolts disposed along the lower surface of the cross piece of the angle steel or the channel steel, and the angle steel or It is composed of two regulating bolts arranged along the vertical surface side of the vertical piece of the channel steel, and a connecting portion for connecting the rising ends of both regulating bolts to each other in a forked manner, The lower frame of the suspension bolt suspension bracket is formed in an arc shape curved in an arc shape in the longitudinal direction of the steel frame frame, and a long hole opened in the curved direction penetrates the arc shaped lower frame. Installed in the lower frame of the arc-shaped curved A plate-shaped bending nut slidable in the bending direction along the inner surface is provided on the curved inner surface, and a ceiling suspension bolt or a steady brace suspension bolt is screwed into the plate-shaped curved nut through the elongated hole. A suspension device such as a ceiling suspension bolt. A steel-framed purlin is fixed to the steel-framed roof frame provided at the lower part of the roofing material, and a suspension bolt suspension bracket for suspending a ceiling suspension bolt or a brace suspension bolt for anti-sway is fixed to the steel-framed purlin. In a suspension device such as a ceiling suspension bolt to be attached, the steel purlin has an L-shaped angle steel or a U-shaped cross section having a horizontal piece abutting on the steel frame roof frame and a vertical piece standing upright on the horizontal piece. In attaching the suspension bolt suspension bracket to these steel purlins, the suspension bolt suspension bracket has a cross section of an upper frame, a vertical frame, a lower frame, and an opening facing the vertical frame. A laterally U-shaped bracket body is formed, the opening is inserted into the horizontal piece of the steel purlin, and a pressing bolt for pressing the upper surface of the horizontal piece is screwed into the upper frame, and the suspension bolt is used by the pressing bolt. The suspension bracket is pressed and supported by the lateral piece of the steel purlin, and the suspension bolt is provided between the suspension bolt suspension bracket and the steel purlin to prevent the suspension bolt suspension bracket from falling off the steel purlin. A bolt is interposed, and the captive bolt is provided with two mounting bolts disposed along the lower surface of the cross piece of the angle steel or the channel steel, and the angle steel or It is composed of two regulating bolts arranged along the vertical surface side of the vertical piece of the channel steel, and a connecting portion for connecting the rising ends of both regulating bolts to each other in a forked manner, The lower frame of the suspension bolt suspension bracket is formed in an arc shape curved in an arc shape in the longitudinal direction of the steel frame frame, and a long hole opened in the curved direction penetrates the arc shaped lower frame. Installed in the lower frame of the arc-shaped curved A plate-shaped bending nut slidable in the bending direction along the inner surface is provided on the curved inner surface, and a ceiling suspension bolt or a steady brace suspension bolt is screwed into the plate-shaped curved nut through the elongated hole. And the suspension bolt suspension bracket includes an intermediate frame integrally formed with the lower frame between the upper frame and the lower frame, and abuts the intermediate frame on the lower surface side of the horizontal piece of the steel frame purlin, A suspension device such as a ceiling suspension bolt , wherein the arc-shaped curved lower frame of the suspension bolt suspension bracket is fixed to the lateral member of the steel purlin by a drill screw which is screwed into the lateral member from the intermediate frame . A steel-framed purlin is fixed to the steel-framed roof frame provided at the lower part of the roofing material, and a suspension bolt suspension bracket for suspending a ceiling suspension bolt or a brace suspension bolt for anti-sway is fixed to the steel-framed purlin. In a suspension device such as a ceiling suspension bolt to be attached, the steel purlin has an L-shaped angle steel or a U-shaped cross section having a horizontal piece abutting on the steel frame roof frame and a vertical piece standing upright on the horizontal piece. In attaching the suspension bolt suspension bracket to these steel purlins, the suspension bolt suspension bracket has a cross section of an upper frame, a vertical frame, a lower frame, and an opening facing the vertical frame. A laterally U-shaped bracket body is formed, the opening is inserted into the horizontal piece of the steel purlin, and a pressing bolt for pressing the upper surface of the horizontal piece is screwed into the upper frame, and the suspension bolt is used by the pressing bolt. The suspension bracket is pressed and supported by the lateral piece of the steel purlin, and the suspension bolt is provided between the suspension bolt suspension bracket and the steel purlin to prevent the suspension bolt suspension bracket from falling off the steel purlin. A bolt is interposed, and the captive bolt is provided with two mounting bolts disposed along the lower surface of the cross piece of the angle steel or the channel steel, and the angle steel or It is composed of two regulating bolts arranged along the vertical surface side of the vertical piece of the channel steel, and a connecting portion for connecting the rising ends of both regulating bolts to each other in a forked manner, The lower frame of the suspension bolt suspension bracket is formed in an arc shape curved in an arc shape in the longitudinal direction of the steel frame frame, and a long hole opened in the curved direction penetrates the arc shaped lower frame. Installed in the lower frame of the arc-shaped curved A plate-shaped bending nut slidable in the bending direction along the inner surface is provided on the curved inner surface, and a ceiling suspension bolt or a steady brace suspension bolt is screwed into the plate-shaped curved nut through the elongated hole. Further, a plate-shaped curved washer is attached along the curved outer surface of the arc-shaped curved lower frame, and the ceiling suspension bolt or the anti-sway brace suspension bolt penetrates the plate-shaped curved washer and the arc-shaped curved lower frame. The ceiling is screwed into the plate-shaped curved nut through the long hole, and a lock nut is screwed into the ceiling suspension bolt or the anti-sway brace suspension bolt, and the lock nut is pressed against the plate-shaped curved washer. A suspension device such as a ceiling suspension bolt in which a suspension bolt or a steady brace suspension bolt is disposed in a predetermined suspension direction and locked . A steel-framed purlin is fixed to the steel-framed roof frame provided at the lower part of the roofing material, and a suspension bolt suspension bracket for suspending a ceiling suspension bolt or a brace suspension bolt for anti-sway is fixed to the steel-framed purlin. In a suspension device such as a ceiling suspension bolt to be attached, the steel purlin has an L-shaped angle steel or a U-shaped cross section having a horizontal piece abutting on the steel frame roof frame and a vertical piece standing upright on the horizontal piece. In attaching the suspension bolt suspension bracket to these steel purlins, the suspension bolt suspension bracket has a cross section of an upper frame, a vertical frame, a lower frame, and an opening facing the vertical frame. A laterally U-shaped bracket body is formed, the opening is inserted into the horizontal piece of the steel purlin, and a pressing bolt for pressing the upper surface of the horizontal piece is screwed into the upper frame, and the suspension bolt is used by the pressing bolt. The suspension bracket is pressed and supported by the lateral piece of the steel purlin, and the suspension bolt is provided between the suspension bolt suspension bracket and the steel purlin to prevent the suspension bolt suspension bracket from falling off the steel purlin. A bolt is interposed, and the captive bolt is provided with two mounting bolts disposed along the lower surface of the cross piece of the angle steel or the channel steel, and the angle steel or It is composed of two regulating bolts arranged along the vertical surface side of the vertical piece of the channel steel, and a connecting portion for connecting the rising ends of both regulating bolts to each other in a forked manner, The lower frame of the suspension bolt suspension bracket is formed in an arc shape curved in an arc shape in the longitudinal direction of the steel frame frame, and a long hole opened in the curved direction penetrates the arc shaped lower frame. Installed in the lower frame of the arc-shaped curved A plate-shaped bending nut slidable in the bending direction along the inner surface is provided on the curved inner surface, and a ceiling suspension bolt or a steady brace suspension bolt is screwed into the plate-shaped curved nut through the elongated hole. Further, a plate-shaped curved washer is attached along the curved outer surface of the arc-shaped curved lower frame, and the ceiling suspension bolt or the anti-sway brace suspension bolt penetrates the plate-shaped curved washer and the arc-shaped curved lower frame. The ceiling is screwed into the plate-shaped curved nut through the long hole, and a lock nut is screwed into the ceiling suspension bolt or the anti-sway brace suspension bolt, and the lock nut is pressed against the plate-shaped curved washer. Suspension bolts or steady rest brace suspending bolts are arranged and locked in a predetermined suspension direction, and the steady rest brace suspending bolts are composed of feather plate bolts, A suspension device, such as a ceiling suspension bolt , in which a brace for steadying is fixed to a blade portion of the bolt, and a lower end of the brace is fixed to a field support U by a fixing tool . A steel-framed purlin is fixed to the steel-framed roof frame provided at the lower part of the roofing material, and a suspension bolt suspension bracket for suspending a ceiling suspension bolt or a brace suspension bolt for anti-sway is fixed to the steel-framed purlin. In a suspension device such as a ceiling suspension bolt to be attached, the steel purlin has an L-shaped angle steel or a U-shaped cross section having a horizontal piece abutting on the steel frame roof frame and a vertical piece standing upright on the horizontal piece. In attaching the suspension bolt suspension bracket to these steel purlins, the suspension bolt suspension bracket has a cross section of an upper frame, a vertical frame, a lower frame, and an opening facing the vertical frame. A laterally U-shaped bracket body is formed, the opening is inserted into the horizontal piece of the steel purlin, and a pressing bolt for pressing the upper surface of the horizontal piece is screwed into the upper frame, and the suspension bolt is used by the pressing bolt. The suspension bracket is pressed and supported by the lateral piece of the steel purlin, and the suspension bolt is provided between the suspension bolt suspension bracket and the steel purlin to prevent the suspension bolt suspension bracket from falling off the steel purlin. A bolt is interposed, and the captive bolt is provided with two mounting bolts disposed along the lower surface of the cross piece of the angle steel or the channel steel, and the angle steel or It is composed of two regulating bolts arranged along the vertical surface side of the vertical piece of the channel steel, and a connecting portion for connecting the rising ends of both regulating bolts to each other in a forked manner, The lower frame of the suspension bolt suspension bracket is formed in an arc shape curved in an arc shape in the longitudinal direction of the steel frame frame, and a long hole opened in the curved direction penetrates the arc shaped lower frame. Installed in the lower frame of the arc-shaped curved A plate-shaped bending nut slidable in the bending direction along the inner surface is provided on the curved inner surface, and a ceiling suspension bolt or a steady brace suspension bolt is screwed into the plate-shaped curved nut through the elongated hole. Further, a plate-shaped curved washer is attached along the curved outer surface of the arc-shaped curved lower frame, and the ceiling suspension bolt or the anti-sway brace suspension bolt penetrates the plate-shaped curved washer and the arc-shaped curved lower frame. The ceiling is screwed into the plate-shaped curved nut through the long hole, and a lock nut is screwed into the ceiling suspension bolt or the anti-sway brace suspension bolt, and the lock nut is pressed against the plate-shaped curved washer. Suspension bolts or steady rest brace suspending bolts are arranged and locked in a predetermined suspension direction, and the steady rest brace suspending bolts are composed of feather plate bolts, An anti-sway brace is fixed to the blade portion of the blade bolt, and a lower end of the brace is fixed to a field support U by a fixing tool, and the suspension bolt suspension bracket for suspending a ceiling suspension bolt is mounted on a steel frame. A suspension device such as a ceiling suspension bolt in which the suspension bolt suspension bracket for suspending a wing plate bolt is mounted on a steel frame purlin different from the steel frame purlin, and a brace for steadying is fixed to the blade bolt.

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