JP6689073B2 - Scaffolding board fixing device - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a scaffolding board fixing device, and in particular, a single-pipe scaffolding in which a building in the vertical direction and a cloth and arms joined to the building through a clamp are configured by a single-pipe pipe, and the scaffolding board is erected on the arms. In the above, the present invention relates to a scaffolding plate fixing device suitable for fixing the scaffolding plate to an arm.

  In general, when installing a single pipe scaffold with a single pipe installed on the site of construction, civil engineering, dismantling of structures, repairs, etc., the size of the site and the presence or absence of obstacles around the site will Pipes The positions where pipes are erected are different, and as a result, the distance between the opposite horizontal construction sites and the distance between the front and rear construction sites are often different. It depends on the situation.

  On the other hand, a general scaffolding board has a constant length and width, and a hook for hooking the armrest is provided at the end of this scaffolding board, but the distance between the opposing scaffolds corresponds to the length of the scaffolding board. If so, it can be installed between the arms via the hooks as it is, but if the distance between the opposing arms is different depending on the site of construction as described above, it cannot be installed between the arms via the hooks.

  For this reason, conventionally, for example, a method of placing a scaffolding board on a brace and connecting the brace and the scaffolding board with a numbering line has been adopted, but this method makes the work of winding the numbering line troublesome. There is a problem that hurts, and it is necessary to cut this number line when removing the scaffolding board, the work is troublesome and difficult, reuse of the number line is impossible and wasteful, and workability and economic efficiency It is a disadvantage.

  Therefore, for example, a scaffolding plate fixture as shown in Patent Document 1 has been developed.

  This scaffolding plate fixing tool consists of a single locking metal fitting made of elastic wire, which enables the scaffolding board to be fixed or removed from the armor made of a single pipe with one touch, and can be reused repeatedly. Is.

Japanese Unexamined Patent Application Publication No. 2009-102821 (see FIG. 2, claim 1 and abstract)

Although the scaffolding plate fixing device described in Patent Document 1 is not structurally defective, the scaffolding plate fixing force is weak because the fixing device is made of a wire rod, and scaffolding when an external force such as vibration acts on the scaffolding plate. The board may move or come off.
Moreover, since the attachment and detachment work is manually performed against the elasticity of the numbered wire, the attachment and detachment work is troublesome, and improvement thereof is desired.
Therefore, an object of the present invention is to provide a fixing device for a scaffold plate, which has a strong anchoring force for the scaffold plate and is easy to mount and remove.

In order to achieve the above object, one means of the present invention is a scaffolding plate fixing device for fixing the end portions of a plurality of scaffolding plates arranged side by side on a single-tube scaffolding arm,
A support plate that supports the lower part of the arm, a nut fixing member that extends in the horizontal direction from the support plate, a nut fixed to the nut fixing member, a scaffolding plate support piece that stands up at the end of the nut fixing member, and It consists of a pressing plate that is in contact with the upper surface of the end of the scaffolding plate, and a bolt that penetrates the pressing plate and is screwed into the nut, and while rotating the bolt to pull up the supporting plate, the supporting plate and the pressing plate. The armrest and the scaffold plate are sandwiched between the plate and the scaffold support piece.

Similarly, another means is a scaffolding plate fixing device for fixing the ends of a plurality of scaffolding plates arranged side by side on the armature of a single-pipe scaffolding. A nut fixing plate vertically extending to the lower part of the plate, a nut fixed to the nut fixing plate, a support plate supporting the lower part of the arm, a bolt guide plate extending horizontally from the support plate, and the bolt guide plate. It consists of a bolt that penetrates and is screwed into the nut, and a scaffolding plate support piece that stands up at the end of the bolt guide plate, and while rotating the bolt to pull up the support plate, the support plate and the presser foot are held. in a plate with pinching the said bracket and the scaffolding board, and is characterized in that for clamping the scaffolding board at the above scaffolding plate support piece and the pressing plate.

According to the present invention, the following effects can be achieved.
1) According to the invention of claim 1, the armrest and the scaffolding plate are sandwiched between the support plate, the pressing plate and the supporting piece, and according to the invention of claim 4 , the armor and the scaffolding plate are the supporting plate and the pressing plate. Since it is sandwiched between the scaffolding support piece and the scaffolding support piece, the fixing force of the scaffolding plate against the armor is stronger than the fixing force of the numbered wire, etc., and the scaffolding plate can be prevented from loosening or coming off even when external force such as vibration acts. it can.
2) According to the inventions of claims 1 and 4 , the scaffolding plate can be fixed to the arm bar or removed by simply rotating the bolt. It can be installed and removed smoothly without damaging it, improving operability and speeding up.

FIG. 3 is a partially cutaway perspective view of a single-pipe scaffold showing a state in which the scaffold plate fixing device of the embodiment according to the invention of claim 1 is used to fix the scaffold plate to the arm bar. It is a partially expanded perspective view of FIG. It is an enlarged plan view of a holding plate. It is a partially expanded side view of the fixing device of a presser board and a scaffolding board. It is a partially expanded longitudinal front view of the state which fixed the scaffolding board to the arm by the scaffolding board fixing device. It is a partially expanded side view of the state which inserted the stop piece between the girders of two scaffolding boards. It is a partially expanded front view in the state which piled up the scaffolding board and the pressing board on arm. FIG. 7 is a partially cutaway perspective view of a single-pipe scaffold showing a state in which the scaffold plate fixing device of one embodiment according to the invention of claim 4 is used to fix the scaffold plate to the arm bar. It is a partially expanded perspective view of FIG. It is an enlarged plan view of a holding plate. It is a partially expanded side view of the fixing device of a presser board and a scaffolding board. It is a partially expanded longitudinal front view of the state which fixed the scaffolding board to the arm by the scaffolding board fixing device. It is a partially expanded front view in the state which piled up the scaffolding board and the pressing board on arm.

  An embodiment of the present invention will be described below with reference to the drawings.

  1 to 7 show a scaffold plate fixing device according to an embodiment of the present invention.

  This scaffolding board fixing device is for fixing the end portions of a plurality of scaffolding boards 2 arranged side by side on the arms 1 of the single-tube scaffolding A.

  As is well known, the single-pipe scaffolding A has a large number of single-pipe pipe constructions standing upright in the lateral direction and the front-rear direction, and a horizontal cloth made of single-pipe pipes is clamped between the opposite construction sites in the lateral direction. Similarly, arms that are made of a single pipe are connected via a clamp between buildings that also face each other in the front-rear direction, and a scaffolding board is installed between the arms that face each other.

And when installing this single pipe scaffolding on the site of construction, civil engineering, dismantling of structures, repair, etc., the position where the single pipe pipe as the building is erected depending on the size of the site and the presence of obstacles around it. Are different, and as a result, the distance between the building constructions in the lateral direction and the distance between the building constructions in the front-rear direction are often different. It is so that you to erection to bracket the scaffolding plate regardless.

  The scaffold fixing device shown in FIGS. 1 to 7 is fixed to the support plate 3 that supports the lower portion of the arm 1 made of a single pipe, the nut fixing member B that extends in the horizontal direction from the support plate 3, and the nut fixing member B. The nut 5, the scaffolding plate support piece 8 erected at the end of the nut fixing member B, the holding plate 6 that abuts on the upper surface of the end of the scaffolding plate 2, and the holding plate 6 penetrates and is screwed into the nut 5. It is composed of a bolt 7.

Then, when the bolt 7 is rotated through a tool or the like, the support plate 3 is pulled up along the screw of the bolt 7, and the support plate 3, the pressing plate 6, and the scaffold plate support piece 8 separate the armrest 1 and the scaffold plate 2 from each other. It holds firmly.

  The support plate 3 is formed in a V-shape in cross section as shown in FIG. 2, but may be curved in a C-shape along the outer periphery of the armrest 1.

The nut fixing member B includes a horizontal plate 4 and a pair of orthogonal nut fixing plates 10a and 10b standing upright on the horizontal plate 4, and the outer periphery of the nut 5 is fixed to the nut fixing plates 10a and 10b.

  Each scaffold plate arranged on the armor 1 is composed of a pair of girders 2b, 2b and a porous tread 2a installed between the girders 2b, 2b, and a large number of holes 2c are formed in the tread 2a to prevent slippage. There is.

  The holding plate 6 has a hole through which the bolt 7 is inserted, and positioning pieces 11, 11 at both ends.

  As shown in FIGS. 1, 2 and 6, the scaffolding plate support piece 8 stands upright at the end of the horizontal plate 4 to face the lower surface of each girder 2b, 2b, and further at the center of the upper end of the scaffolding plate support piece 8. A stop piece 9 that engages with the side surface of the girder 2b is erected.

When fixing the end portions of the scaffolding plate 2 onto the armrest 1, first, the end portions of the plurality of scaffolding plates 2 are placed side by side on the armrest 1 with a slight gap.

Next, the scaffolding board fixing device of the present invention is arranged between the scaffolding boards 2 and 2 adjacent to each other.

In this case, the bolts 7 are inserted into the holes formed in the holding plate 6, and then the heads 10 of the bolts 7 are rotated with a tool or the like while the support plate 3 is being attached to the lower part of the arm 1 and the nuts 5 are screwed. To combine.

Therefore, the horizontal plate 4, the nut 5, and the scaffolding plate supporting piece 8 ascend along the screw of the bolt 7, the shoulder portion of the scaffolding plate supporting piece 8 abuts on the lower surface of the girder 2b of the scaffolding plate 2, and the stop piece 9 is inserted into the gap between the girders 2b, 2b, and at the same time, the support plate 3 is also pulled up and pressed against the lower portion of the arm member 1.

  Further, the bolt 7 penetrates downward through the hole 12 formed in the horizontal plate 4, and the holding plate 6 pressed by the hexagonal head portion 10 of the bolt 7 is pressed against the upper surface of the scaffolding plate 2, resulting in a brace. 1 and the scaffolding plate 2 are firmly sandwiched between the support plate 3 and the pressing plate 6.

The scaffold plate support piece 8 and the stop piece 9 can be used without the above, but when the bolt 7 is rotated to tighten the support plate 3, the reaction force is received by the girder 2b via the scaffold plate support piece 8. Since it prevents the whole nut fixing member B from inclining, it is preferable to exist.

  In the scaffolding plate fixing device, the bolt 7 can be attached and detached by rotating the bolt 7, the operation can be performed without damaging the hand, the operability is improved, and the speed can be increased.

  In addition, since the scaffolding plate 2 is mechanically clamped and fixed to the armrest 1 as compared with a fixing means such as a numbering line, even if an external force such as vibration acts on the scaffolding plate 2 or the armrest 1, the fastening of the scaffolding plate 2 is loosened. First of all, it is safe because it does not move.

  Next, an embodiment according to the invention of claim 4 will be described with reference to FIGS.

  The structure of the single-tube scaffold A is the same as in the case of FIG.

This scaffold plate fixing device is one in which bolts 17 are provided on a bolt guide plate 14 extending from the lower support plate 13, and the operation and effect are practically the same as those of the embodiment shown in FIGS. .

The scaffolding plate 2 and the pressing plate 6 are the same as those in the embodiment of FIG.

However, the holding plate 6 may not be provided with a hole for inserting a bolt.

  The scaffolding plate fixing device includes a holding plate 6 that is in contact with an upper surface of an end portion of the scaffolding plate 2, a nut fixing plate 16 that is hung from a lower portion of the holding plate 6, a nut 15 that is fixed to the nut fixing plate 16, and a brace. 1, a support plate 13 that supports the lower part of the 1, a bolt guide plate 14 that extends horizontally from the support plate 13, a bolt 17 that penetrates the bolt guide plate 14 and is screwed into a nut 15, and an end portion of the bolt guide plate 14. The scaffolding plate supporting piece 18 is upright.

In this scaffolding plate fixing device, the armature 1 and the scaffolding plate 2 are held between the supporting plate 13, the pressing plate 6 and the scaffolding plate supporting piece 18 while rotating the bolt 17 and pulling up the supporting plate 13.

  The nut fixing plate 16 is provided with a pair of support pieces 16a and 16b which are vertically provided, and the outer circumference of the nut 15 is fixed between the support pieces 16a and 16b.

  A horizontal locking piece 19 having a slit 19a is provided at the upper end of the scaffolding plate supporting piece 18, the lower surface of the girder 2b is brought into contact with the upper surface of the locking piece 19, and the end of the nut fixing plate 16 is fitted into the slit 19a. It is designed to let you.

When fixing the end portions of the scaffolding plate 2 onto the armrest 1, first, the end portions of the plurality of scaffolding plates 2 are placed side by side on the armrest 1 with a slight gap.

Next, the scaffolding board fixing device of the present invention is arranged between the scaffolding boards 2 and 2 adjacent to each other.

  In this case, the nut fixing plate 16 is inserted between the girders 2b, 2b of the adjacent scaffolding plates 2, 2 with the nut 15 fixed to the nut fixing plate 16 hung on the holding plate 6.

Next, the support plate 3 is placed on the lower part of the armor 1, and at the same time, the scaffold plate support piece 18 is opposed to the girder 2b of the scaffold plate 2, and at the same time, the support piece 16a is inserted into the slit 19a.

In this state, when the head 17a of the bolt 17 is rotated with a tool or the like to be screwed into the nut 15, the bolt guide plate 14, the bolt 17, the scaffolding plate support piece 18, and the locking piece 19 are screwed to the bolt 17. The upper surface of the locking piece 19 abuts on the lower surface of the girder 2b of the scaffolding plate 2, and at the same time, the support plate 13 is also pulled up and pressed against the lower part of the arm bar 1.

Further, when the locking piece 19 abuts on the lower surface of the girder 2b, when the bolt 17 is further tightened, the pressing plate 6 is drawn downward and comes into pressure contact with the upper surface of the scaffolding plate 2. As a result, the armrest 1 and the scaffolding plate 2 are firmly sandwiched between the support plate 13 and the pressing plate 6.

Although the scaffolding plate supporting piece 18 can be used without the scaffolding plate supporting piece 18, a reaction force is received by the girder 2b via the scaffolding plate supporting piece 18 when the supporting plate 13 is tightened by rotating the bolt 17 to support the supporting plate 13. The bolt guide plate 14 is preferably present because it prevents the bolt guide plate 14 from tilting.

  In the fixing device for the scaffolding plate, as in the case of the embodiment shown in FIG. 1, the bolt 17 can be attached and detached by rotating the bolt 17 so that it can be operated without damaging the hand and the operability is improved. And speed up.

  In addition, since the scaffolding plate 2 is mechanically clamped and fixed to the armrest 1 as compared with a fixing means such as a numbering line, even if an external force such as vibration acts on the scaffolding plate 2 or the armrest 1, the fastening of the scaffolding plate 2 is loosened. First of all, it is safe because it does not move.

1 arms 2 scaffolding boards
2a tread
2b Girder 3 , 13 Support plate 4 Horizontal plate 5 , 15 Nut 6 Holding plate 7 , 17 Bolt 8 , 18 Scaffold plate support piece
9 stop pieces
10a, 10b, 16 Nut fixing plate
14 Bolt guide plate 15 Nut
16a, 16b Support piece 17 Bolt
19 Locking piece
19a slit
A single pipe scaffold
B nut fixing member

Claims (6)

In a scaffolding plate fixing device for fixing the end portions of a plurality of scaffolding plates (2) arranged side by side on the arms (1) of a single-pipe scaffolding (A) ,
A supporting plate (3) for supporting the lower part of the arm (1) ,
A nut fixing member (B) extending horizontally from the support plate (3) ,
A nut (5) fixed to the nut fixing member (B),
A scaffolding plate support piece (8) standing upright on the end of the nut fixing member (B),
A retainer plate (6) in contact with the upper surface of the end of the scaffold plate (2),
A bolt (7) which penetrates the holding plate (6) and is screwed into the nut (5),
The support plate while pulling up the support plate (3) by rotating said bolt (7) (3) and the pressing plate (6) and the scaffold-plate support piece (8) and de the bracket (1) above A scaffolding board fixing device, which is characterized by sandwiching it with a scaffolding board (2). The support plate (3) is formed in a V-shape or C-shape in cross section, and the nut fixing member (B) is a horizontal plate (4) and a pair of nut fixing plates (10a) standing upright on the horizontal plate (4). ), (10b), and fixing the outer periphery of the nut (5) to the nut fixing plates (10a), (10b). The scaffold plate (2) comprises a pair of girders (2b), (2b) and a porous tread plate (2a) installed between the girders (2b), (2b), and the scaffold plate support piece (8). Standing upright at the end of the horizontal plate (4) so as to face the lower surfaces of the girders (2b) and (2b), and at the center of the upper end of the scaffolding plate support piece (8) on the side surface of the girder (2b). The scaffolding plate fixing device according to claim 2 , wherein an engaging stop piece (9) is raised. In a scaffolding plate fixing device for fixing the end portions of a plurality of scaffolding plates (2) arranged side by side on the arms (1) of a single-pipe scaffolding (A),
A retainer plate (6) in contact with the upper surface of the end of the scaffold plate (2),
A nut fixing plate (16) vertically provided on the lower part of the holding plate (6),
A nut (15) fixed to the nut fixing plate (16),
A support plate (13) for supporting the lower part of the arm (1),
A bolt guide plate (14) extending horizontally from the support plate (13),
A bolt (17) penetrating the bolt guide plate (14) and screwed into the nut (15);
The scaffold plate support piece (18) standing upright at the end of the bolt guide plate (14),
While rotating the bolt (17) and pulling up the supporting plate (13), the supporting plate (13) and the holding plate (6 ) sandwich the armrest (1) and the scaffolding plate (2). In addition, the scaffold plate fixing device characterized in that the scaffold plate support piece (18) and the pressing plate (6) sandwich the scaffold plate (2) . The nut fixing plate (16) supporting pieces in pair is vertically downward (16a), provided with (16b), said support piece (16a), the fixed outer peripheral of (16b) the nut (15) between The scaffold plate fixing device according to claim 4. The scaffold plate (2) comprises a pair of girders (2b), (2b) and a porous tread plate (2a) installed between the girders (2b), (2b), and the scaffold plate support piece (18). Is provided with a horizontal locking piece (19) having a slit (19a) formed at its upper end, the lower surface of the girder (2b) is brought into contact with the upper surface of the locking piece (19), and the nut is fitted in the slit (19a). The scaffolding plate fixing device according to claim 4 or 5, wherein an end portion of the fixing plate (16) is fitted.

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