JP2009197525A - Stair - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To adjust the angle of a tread corbel in response to the angle of a stair girder while also conducting the fixing work of the tread corbel simply. <P>SOLUTION: Stairs have the stair girder 20 with an upward opened upper groove 21 along the longitudinal direction of a top face, the hollow tread corbels 23 and a tread 24 mounted on the tread corbels 23. A connecting bracket 34 is fixed to the lower sections of the hollow sections 22 of the tread corbels 23, and girder mounting pieces 36 projected at a right angle to the outside from the lower ends of the tread corbels 23 are formed in the connecting bracket 34. The tread corbels 23 are fitted and arranged in the upper groove 21 of the stair girder 20 at regular intervals, and the girder mounting pieces 36 are fixed to the upper groove 21. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a stair that can improve workability by adding a temporary fixing function to a tread receiving member when fixing a tread on a stair girder.

  Generally, a wooden or metal deck is arranged in a garden of a building. For example, a technique for creating a large deck space outdoors by arranging a combination of a high deck unit and a low deck unit using standard wood is known (see Patent Document 1).

However, such wood decks are expensive in terms of treads and cannot be installed easily. In order to solve this problem, it is also known that a constituent member such as a tread is made of an extrusion mold material such as aluminum (see Patent Documents 2 and 3).
JP-A-7-279241 JP 2006-265991 A JP2007-191941

  However, in the staircase structure of Patent Document 3, since the tread receiving material is formed by cutting a horizontally long extruded mold material into a certain length, the stair girder is always installed at a certain angle with respect to the ground. There must be. This is because the tread will tilt if the angle is a little off.

  Moreover, in the staircase structure of Patent Document 2, the tread plate receiving material is fixed with screws on both sides of the stair girder, and the position of the screws cannot be finely adjusted, so that the mounting work becomes complicated. is there.

  It is an object of the present invention to provide a stair that solves the above problems and can adjust the angle of the tread receiving member according to the angle of the stair girder and can also easily fix the tread receiving member. Let it be an issue.

  In order to solve the above-mentioned problems, the invention according to claim 1 includes a stair girder having an upper groove that opens upward along the longitudinal direction of the upper surface, a hollow tread receiving member, and a tread provided on the tread receiving member. The connecting bracket is fixed to the lower portion of the hollow portion of the tread plate receiving material, and a girder mounting piece is formed on the connecting bracket so as to protrude outward from the lower end of the tread plate receiving material at a right angle. The tread plate receiving material is fitted and arranged with a spacing of, and the girder mounting piece is fixed to the upper groove.

  According to a second aspect of the present invention, in the first aspect, the connection bracket includes a receiving member mounting piece that is inserted and fixed in the hollow portion of the tread plate receiving member, and the girder mounting piece that projects outside the hollow portion. It is provided with.

  According to a third aspect of the present invention, in the first or second aspect, a fitting groove for slidably fitting a fixing bolt head along the groove bottom of the upper groove of the staircase girder is formed, and the fixing bolt is connected to the girder. The girder mounting piece is fixed to the upper groove by being inserted through the mounting piece, sliding along the fitting groove, and fastening the upper part of the fixing bolt with a nut at a predetermined position.

  The invention according to claim 4 is characterized in that, in claims 1 to 3, a handrail connecting member is formed so as to project from the side of the stair girder, and a handrail column is attached above the handrail connecting member.

  According to the first aspect of the present invention, the connecting bracket is formed with a girder mounting piece projecting perpendicularly outward from the lower end of the tread board receiving material, and the tread board receiving material is fitted into the upper groove of the stair girder at a certain interval. Since the arrangement is such that the girder mounting piece is fixed to the upper groove, the position in the width direction of the stair girder of the tread plate receiving material can be determined by the upper groove, and the girder mounting piece can be a bolt or the like from above the upper groove. It can be fixed by fixing means. Thus, workability is improved because the tread plate support member does not have to be fixed from the side surface of the stair girder.

  In addition, since the tread plate receiving material is a vertically long hollow material, the mounting angle with respect to the stair girder and the tread plate mounting angle can be easily adjusted by cutting the extruded mold material. Therefore, even if the angle of the stair girder changes depending on the situation of the installation site, it can be easily handled at the site.

  In the invention according to claim 2, the receiving member mounting piece of the connection bracket is inserted into the hollow portion of the tread plate receiving member and cannot be seen from the outside, and the girder mounting piece projects to the outside of the hollow portion, but is covered by the upper surface cover. Therefore, the external appearance of the attachment part of a tread board receiving material and a stair girder is good.

  According to a third aspect of the present invention, a fitting groove for slidably fitting the fixing bolt head is formed along the groove bottom of the upper groove of the staircase girder, and the fixing bolt is inserted into the girder mounting piece to form the fitting groove. The girder mounting piece is fixed to the upper groove by tightening the upper part of the fixing bolt with a nut at a predetermined position, so the head of the fixing bolt is fitted from one end of the fitting groove of the upper groove of the staircase girder. Then, the fixing bolt is inserted from the bolt insertion hole of the girder mounting piece of the first connection bracket of the first tread plate receiving member to protrude above the upper groove, and the nut is loosely screwed into this from above. Slide the tread receiving material on both sides to a predetermined position with the fixing bolt held in this way, and tighten the nut slightly to temporarily fix it. Then, after finely adjusting the mounting position of the tread plate receiving member and positioning it at the correct position, the nut is firmly tightened to fix the girder mounting piece to the upper groove. Thereby, the installation work of the tread plate receiving material is completed.

  Thus, since it can construct with the tread board receiving material temporarily fixed, the attachment position of the tread board receiving material can be finely adjusted and fixed accurately.

  According to the fourth aspect of the present invention, the handrail connecting member protrudes from the side of the stair girder and the handrail column is attached above the handrail connecting member, so that the entire surface of the tread can be used for raising and lowering. .

  1A and 1B are perspective views of a deck structure including stairs according to the present invention. In the above figure, reference numeral 1 denotes a building, and a deck space D is formed around the building 1 in a gallery shape. The deck space D is configured by connecting a plurality of deck units, and a handrail H is disposed along one side thereof. In FIG. 5B, a straw roof R that covers the deck space D is disposed along a side of the deck space D in place of the handrail. A staircase T is connected to the end of the deck space D.

  As shown in FIG. 2, each deck unit has a girder frame 4 in which two girder frames 3, 3 are arranged between two girder members 2, 2 each made of an extruded aluminum material. It consists of the foot board material 5 attached on the girder frame 4 and is formed in the same size. In addition, the number of the girder 2, the wife girder 3, and the tread board 5 is not limited to the said form.

  As shown in FIG. 3, the girder 2 includes a hollow girder body 2a, a side surface cover 2b, and a lower surface cover 2c. The girder body 2a includes a mounting portion 6 having a planar mounting surface for the tread plate material 5; A side groove 8 formed along the longitudinal direction of the side surface portion 7 on both sides of the lower portion of the attachment portion 6 and a concave groove-shaped lower groove 10 formed along the longitudinal direction of the bottom portion 11 connecting the lower portions of the side surface portions 7 on both sides. Is formed. The covers 2b and 2c are formed in an arc shape in cross section.

  The upper end of the side surface portion 7 is inclined toward the lower end of the attachment portion 6, and a collar piece 13 is formed on the lower end edge of the side surface portion 7. The side groove 8 is a concave groove, and a groove 15 is formed in the bottom 14 of the side groove 8.

  An engagement piece 16 that engages with the flange piece 13 is formed at the lower end edge of the side cover 2 b that covers the side surface portion 7. The side cover 2b is fixed by engaging the engagement piece 16 with the flange piece 13 of the side surface portion 7, and superimposing the upper portion on the inclined portion 17 and screwing it. In addition, insertion pieces 18 are formed upright on both sides of the lower surface cover 2c, and these insertion pieces 18 are inserted into both sides of the lower groove 10 and fixed at the top by screws.

  The girder 3 has the same shape and the same size as the girder 2 and is fixed to each other via the bracket 12.

  The footboard material 5 has a plurality of hollow space portions 19 and is fixed to the upper surface of the attachment portion 6 of the girder frame 4 via a fixing bracket 21.

  Next, in FIGS. 4A and 4B to FIG. 10, the stairs provided at the end of the deck unit A that is continuously provided will be described.

  The stair T is composed of two parallel stair girder 20 having an upper groove 21, a tread board receiving member 23, and a plate-like tread board 24 provided on the tread board receiving member 23. Both of the stair girder 20 and the tread board receiving member 23 are made of an aluminum extrusion mold.

  As shown in FIG. 5A, the stair girder 20 has an upper groove 21 that opens upward along the longitudinal direction of the upper surface, forms side plates 25 below both sides of the upper groove 21, and has an arcuate bottom. The formed girder body 20a, a top cover 20b and a side cover 20c having an arcuate cross section that can be attached to and detached from the upper and lower parts and both sides of the girder body 20a, respectively. By mounting, it is configured so that it looks like a column as a whole. In addition, a holder fitting groove 27 for slidably fitting the head of the fixing bolt 26 along the longitudinal direction is formed in the groove bottom 21a of the upper groove 21. A similar fitting groove 28 is also formed in the side plate 25 along the longitudinal direction thereof.

  As shown in FIG. 5 (b), the tread plate receiving member 23 is a vertically long mold member having a rectangular hollow portion 22 of a size that can be fitted into the upper groove 21 of the stair girder 20, and its lower end surface is in the longitudinal direction. The upper end surface is formed obliquely with respect to the longitudinal direction.

  As shown in FIG. 6, the tread 24 is formed by forming a storage groove 30 for storing the same tread material 5 as that of the deck unit in the upper center of a tread body 24 a made of an extrusion mold material. The tread plate material 5 is fixed to the bottom plate of the tread plate body 24a with screws. A kick-up plate 31 is fixed to the end portion on the back side of the tread plate 24. Further, a receiving plate fitting groove 32 for fixing a later-described second bracket is formed at a predetermined position of the tread plate 24. Further, caps 33 (see FIG. 4A) are attached to both ends of the tread plate 24. An opening 33 a is formed in the cap 33 at a position corresponding to the receiving plate fitting groove 32.

  The tread board receiving member 23 is fixed to the stair girder 20 through the first connection bracket 34, and the tread board 24 is fixed to the tread board receiving member 23 through the second connection bracket 35.

  As shown in FIGS. 6 and 7A, the first connection bracket 34 is formed by standing up receiving member mounting pieces 37 from the center portions on both sides of the elongated plate-like girder mounting pieces 36. The material mounting piece 37 is formed in a size that can be fitted into the hollow portion 22 of the tread plate receiving material 23. Bolt insertion holes 38 are formed at both ends of the girder mounting piece 36, and tap holes 40 are formed at both ends of each receiving member mounting piece 37.

  As shown in FIGS. 6 and 7B, the second connection bracket 35 is formed by welding and fixing a U-shaped plate 42 to the center of a rectangular substrate 41, and bolt holes 43 are formed at four locations on the substrate 41. Tap holes 40 are formed at both ends of the side piece of the U-shaped plate 42. The U-shaped plate 42 is formed in a size that can be fitted into the hollow portion 22 of the tread plate receiving member 23.

  Next, when attaching the tread board receiving member 23 to the stair girder 20, first, as shown in FIG. 8, the receiving member mounting piece 37 of the first connection bracket 34 is fitted into the hollow portion 22 of the tread board receiving member 23. Together, the screws are fixed to the tap holes 40 from the outside of the tread board receiving member 23. At this time, the girder mounting piece 36 projects outward at a right angle from the lower end of the tread plate receiving member 23. Further, the substrate 41 of the second connection bracket 35 is brought into contact with the lower surface of the tread plate 24, and the bolts 44 are inserted into the bolt holes 43 and fixed by the receiving plate 45 as shown in FIG. The receiving plate 45 is pushed into the opening 33a of the lid plate 33, is fitted into the receiving plate fitting groove 32, and is slid to a predetermined position. Then, the U-shaped plate 42 is fitted from the oblique upper end portion of the tread plate receiving member 23, and fixed to the tap hole 40 on the side piece of the U-shaped plate 42 from the side surface of the tread plate receiving member 23. In this way, the tread plate 24 and the tread plate receiving member 23 are previously unitized as shown in FIG.

  Next, the head of the fixing bolt 26 is fitted from one end of the holder fitting groove 27 of the upper groove 21 of the stair girder 20 arranged in parallel as shown in FIG. The first connecting bracket 34 is inserted from the bolt insertion hole 38 of the girder mounting piece 36 so as to protrude above the upper groove 21, and the nut 29 is loosely screwed into this from above. The tread plate receiving members 23 on both sides are slid to the predetermined position shown in FIG. 6 with the fixing bolts 26 held in this way, and the nuts 29 are slightly tightened and temporarily fixed. Then, after finely adjusting the mounting position of the tread plate receiving member 23 and positioning it at the correct position, the nut 29 is firmly tightened to fix the girder mounting piece 36 to the upper groove 21. Preferably, a tex screw 45 is further struck into the diagonal of the girder mounting piece 36 for reinforcement. The tex screw 45 may be driven into at least two of the four corner holes of the girder mounting piece 36. Thereby, the attachment work of one tread board 24 is completed. Thereafter, a predetermined number of treads 24 are attached in the same manner, and finally, an upper cover 20b (see FIG. 5) and a side cover 20c are attached to the girder body 20a so as not to interfere with the tread receiving member 23.

  The tread board receiving member 23 and the tread board 24 may be loosely attached at the beginning, and may be fixed firmly after the position is finely adjusted. Of course, only the tread board receiving member 23 may be fixed to the stair girder 20 first, and the tread board 24 may be fixed to the upper ends of the two stair girder 20.

  Next, when the staircase T is provided at the end of the deck space D, as shown in FIG. 6, one end of the girder metal fitting 46 is fixed to the lower groove 10 of the girder 2 of the end deck unit. It is only necessary to attach a girder metal fitting 47 to the upper edge of the upper end of the stair girder 20 to which 24 is attached, and to fasten and fix the joint portions 52 and 54 of the girder metal fitting 46 and the girder metal fitting 47 with fixing bolts and nuts 48.

  As shown in FIG. 10, the girder metal fitting 46 is provided with a box-shaped lower groove fitting portion 50 having a square bottom at one end, and a joint portion 52 protruding from the lower groove fitting portion 50 to the other end. The lower groove fitting portion 50 may be fitted into the lower groove 10 of the beam 2 and its side wall may be fixed to the side surface of the beam 2. Further, as shown in FIGS. 9A to 9D and FIG. 10, the girder edge bracket 47 includes a fixing plate 53 that contacts the fore edge of the stair girder 20 and a side surface that protrudes from the center of the fixing plate 53 to the front side. It is composed of a joint portion 54 having a triangular shape and a pair of leg pieces 55 protruding rearward from the fixed plate 53, the fixed plate 53 is brought into contact with the fore edge of the stair girder 20, and the leg piece 55 is attached to the stair girder 20. The leg piece 55 is fixed to the side groove 8 with bolts and nuts.

  As described above, the first connection bracket 34 is formed with the girder mounting piece 36 projecting outward from the lower end of the tread board receiving member 23 at a right angle, and the tread board receiving member is spaced from the upper groove 21 of the stair girder 20 at a certain interval. 23, and the girder mounting piece 36 is fixed to the upper groove 21, so that the position of the tread receiving member 23 in the width direction of the stair girder 20 can be determined by the upper groove 21. The piece 36 can be fixed only from above the upper groove 21 by a fixing means such as a bolt. Thus, since it is not necessary to fix the tread board receiving material 23 from both side surfaces of the stair girder 20, workability is improved.

  Further, the receiving member mounting piece 37 of the first connection bracket 34 is inserted into the hollow portion 22 of the tread plate receiving member 23 and cannot be seen from the outside, and the girder mounting piece 36 projects to the outside of the hollow portion 22, Since it is covered with the cover 20b, the appearance of the attachment portion between the tread board receiving member 23 and the stair girder 20 is good.

  Further, a bolt fitting groove 27 for slidably fitting the head of the fixing bolt 26 is formed along the groove bottom 21 a of the upper groove 21 of the stair girder 20, and the fixing bolt 26 is inserted into the girder mounting piece 36 to be bolted. The girder mounting piece 36 is fixed to the upper groove 21 by sliding along the fitting groove 27 and fastening the upper part of the fixing bolt 26 with a nut 29 at a predetermined position. The heads of the fixing bolts 29 are fitted from one end of the groove, and the tread plate receiving members 23 on both sides are slid to a predetermined position with the fixing bolts 26 held in this manner, and the nuts 29 are slightly tightened to temporarily fix them. Then, after finely adjusting the mounting position of the tread board receiving material 23 and positioning it to the correct position, the nut 27 is finally tightened so that the girder mounting piece 36 is fixed to the upper groove 21, so that the tread board receiving material 23 is temporarily fixed. State Since it is possible construction, it is possible to accurately fix by finely adjusting the mounting position of the tread plate receiving member 23.

  Note that, by driving the tex screw 58, the nut 29 of the first connection bracket 34 is not loosened even if vibration occurs due to the tread plate 24 being repeatedly stepped on when ascending and descending the stairs.

  Further, the tread board receiving member 23 is composed of a vertically long hollow material made of an aluminum extrusion mold, the lower end surface of the tread board receiving member 23 is cut so as to be orthogonal to the longitudinal direction, and the upper end surface is a stair girder 20 according to the situation of the installation site. It can be easily adjusted by cutting so as to be horizontal according to the angle. Therefore, even if the angle of the stair girder 20 changes depending on the situation of the installation site, it can be easily handled at the site.

  Next, when the handrail shown in FIGS. 4A and 4B is provided on the staircase, the handrail connecting member 60 projects from the side of the stair girder 20, and the handrail column 64 is attached to the handrail connecting member 60. A handrail is attached to the upper end of 64. That is, as shown in FIG. 11, the girder bracket 58 is fixed to the side groove 8 of the stair girder 20, and the handrail connecting member 60 is fixed to the fixing piece 58 a of the bracket 58. The handrail connecting member 60 is made to look like a columnar shape by attaching a pair of upper and lower semicircular cover members 62 and 62 to the outside of a substantially square hollow portion 61. As shown in FIG. 12, openings 63 and 63 are formed through the hollow portion 61 at positions where the handrail pillars 64 are attached (similar openings are also formed through the upper cover 62). A handrail column 64 is fitted into the openings 63 and 63 and is fixed by a bolt 26. A metal reinforcing core member 65 is disposed inside the handrail column 64, and a spacer 66 is disposed outside. The bolt 26 is screwed into the reinforcing core member 65 and integrally coupled thereto. The spacer 66 prevents the handrail connection member 60 from being crushed when the bolt 26 is fastened.

  According to the above configuration, since the handrail column 64 is disposed outside the tread plate material, the deck space D can be given a margin.

  Even when the handrail column 64 is disposed at the fore edge of the beam 2, the bracket is fixed to the forehead, the handrail connection member 60 is fixed to the bracket, and the handrail column 64 is fixed to the handrail connection member 60 in the same manner as described above. Good.

  A handrail may be connected to the upper end of the handrail column 64 attached to the deck unit as described above.

  Next, as shown in FIG. 13, a straw roof R that covers the deck space D can be disposed along a side of the deck space at a certain interval. In this case, the roof roof R may be supported by the support column 65 with emphasis on ventilation, sunlight and the like. However, as a support means for the roof roof, the spandrel 66, the lattice 67, the panel 68, or the wall frame depending on the site environment. It can be combined with 69 etc. By connecting deck units of a certain size in series, connecting in parallel, or connecting at right angles, a new deck space with high design freedom, high expandability, and excellent design is created. Can be built.

  In addition, when installing a spandrel, as shown in FIG. 14, a frame 70 may be assembled and the spandrel may be fastened and fixed around the frame 70.

  FIG. 15 shows a form in which the stairs are arranged on the concrete frame 68. By projecting from the bracket 69 fixed to the concrete frame and inserting a fixed piece 70 into the inside of the stair girder 20 from the small opening, The upper end of 20 is connected to the concrete frame 61. Reference numeral 64 denotes a handrail pillar.

(A) (b) is a perspective view which shows the arrangement | positioning aspect of deck space A plan view showing a part of the deck unit broken away (A) and (b) are cross-sectional views of the footboard and girders. (A) and (b) are side view and front view of deck space and stairs. (A) (b) is a cross-sectional view of a stair girder and a cross-sectional view of a tread plate receiving material Sectional view of the stairs provided at the end of the deck space (A) and (b) are perspective views of the first and second connection brackets. Front view of tread and tread rest Sectional drawing which shows the attachment aspect of a stair girder and a tread board receiving material Explanatory drawing of connection mode between deck space girder and stair girder Sectional drawing which shows the coupling | bonding aspect of a stair girder and a handrail connection member Sectional drawing which shows the coupling | bonding aspect of a handrail connection member and a handrail pillar Illustration of combination aspect of thatched roof Perspective view of spandrel skeleton Sectional view of the form in which stairs are arranged in a concrete frame

Explanation of symbols

A Deck unit 2 girder 3 Tsum girder 20 Stair girder 21 Upper groove 23 Tread board receiving material 34 First connection bracket

Claims (4)

  A step bracket comprising a step girder having an upper groove opened upward along the longitudinal direction of the upper surface, a hollow tread receiving member, and a tread provided on the tread receiving member, and a connection bracket below the hollow portion of the tread receiving member The connecting bracket is formed with a girder mounting piece protruding perpendicularly outward from the lower end of the tread plate receiving material, and the tread plate receiving material is fitted and arranged at a certain interval in the upper groove of the stair girder, A staircase characterized in that a girder mounting piece is fixed to the upper groove.   The connection bracket includes a receiving member mounting piece that is inserted and fixed in a hollow portion of the tread plate receiving material, and the girder mounting piece that protrudes to the outside of the hollow portion. The staircase described in.   A fitting groove that slidably fits the fixing bolt head along the groove bottom of the upper groove of the staircase girder is formed, and the fixing bolt is inserted through the girder mounting piece and slid along the fitting groove. The staircase according to claim 1 or 2, wherein the girder mounting piece is fixed to the upper groove by fastening an upper portion of the fixing bolt with a nut at a predetermined position.   The stair according to any one of claims 1 to 3, wherein a handrail connecting member is formed so as to project from a side of the staircase girder, and a handrail column is attached above the handrail connecting member.

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