JP2002138660A - Scaffolding board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a staging plate, capable of reducing as small as possible a gap formed between the staging plates adjacent to each other in the longitudinal direction. SOLUTION: The staging plate comprises a plate body 1, auxiliary plates 4 provided at both front and rear ends of the plate body 1 and extended in an extension line in alignment with the top face of the plate body 1, hooks 2a and 2b provided at left and right sides of the front end and the rear end of the body 1 and a notch s provided at left and right sides of the auxiliary plate, correspondingly to the hooks 2a and 2b. The staging plate is installed with the hooks 2a and 2b on a horizontal member 5, provided in a fabricated scaffolding or a building/civil engineering work site. The top faces of the hooks 2a and 2b are formed horizontally and are set to be flush with the top face of the auxiliary plate 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scaffold plate applied to a framework scaffold used in a construction site, a civil engineering site, or the like.

[0002]

2. Description of the Related Art As a scaffold plate used for a temporary scaffold or the like, for example, a scaffold disclosed in Japanese Utility Model Publication No. 6-48050 has been developed.

In this scaffold plate, a pair of left and right hooks are provided at both front and rear ends of a scaffold plate main body. This scaffold board is erected through a hook on a horizontal member provided on a framed scaffold or the like, and an operator walks on the scaffold board or performs various operations on the scaffold board at a construction / civil engineering work site. .

The hook has a hook main body, a curved groove formed on the lower side of the main body, and a curved lock plate rotatably connected to a side surface of the main body, and an upper outer peripheral surface of the hook main body is a curved surface which rises upward. Is formed.

[0005]

The above-mentioned conventional scaffold plate is hooked on a horizontal member of a temporary scaffold such as an auxiliary scaffold through a curved groove, and then the lock plate is turned downward to move the horizontal member to the hook body. It is held between the lock plate. As a result, the scaffold plate is firmly hooked on the horizontal member via the hook, but the following problems occur.

[0006] First, when a large number of scaffolding plates are arranged in a longitudinal direction on a framework scaffold, a gap corresponding to the length of a hook is inevitably generated between two adjacent scaffolding plates. There is a danger of tools, debris and other small objects falling down.

Second, in order to prevent the above-mentioned gap from being generated, it is absolutely necessary to arrange a gap closing plate in the lateral direction above the gap. In this case, however, the number of parts is increased and the gap is increased. The operation of attaching and detaching the closing plate is also troublesome.

Thirdly, instead of the gap closing plate, an auxiliary plate is connected to both front and rear ends of the scaffold plate to close the gap with the auxiliary plate. In this case, the auxiliary plate and the hook are connected. Notches are formed in the portions corresponding to the hooks on the auxiliary plate so as not to interfere. However, since the above-mentioned conventional hook has a curved surface in which the upper surface bulges upward, a slight gap is inevitably generated between the upper portion on the proximal end side and the upper portion on the distal end side of the hook, so that the dropping of small items cannot be completely prevented.

Accordingly, an object of the present invention is to provide a scaffold plate capable of minimizing generation of a gap between scaffold plates adjacent in the longitudinal direction.

[0010]

In order to achieve the above object, the present invention comprises a plate body, and auxiliary plates provided at both front and rear ends of the plate body and extending on the same extension as the upper surface of the plate body. , Consisting of hooks provided on both left and right sides of the front and rear ends of the plate body, and notches provided corresponding to the hooks on both left and right sides of the auxiliary plate, and provided on a framed scaffold or a construction / civil engineering work site. In a scaffold plate that is erected on the material via the hook, the upper surface of the hook is formed horizontally and is set at the same height as the upper surface of the auxiliary plate.

In this case, it is preferable that the dimension in the front-rear direction on the upper surface of the hook is twice as large as the dimension in the front-rear direction of the notch.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.

A scaffold plate A according to the present invention comprises a plate body 1 as well as a conventional scaffold plate, and auxiliary plates 4, 4 provided at both front and rear ends of the plate body 1 and extending on the same extension line as the upper surface of the plate body 1. When,
Hooks 2 provided on both left and right sides of front and rear ends of plate body 1
a, 2b, and notches s provided on both left and right sides of the auxiliary plate 4 in correspondence with the hooks 2a, 2b, respectively. The hooks 2a are provided on a framed scaffold or a horizontal member 5 provided on a construction / civil engineering work site. , 2b.

The present invention is further characterized in that the upper surfaces P of the hooks 2a and 2b are formed horizontally as shown in FIG. 4 and are set at the same height as the upper surface Q of the auxiliary plate 4.

Further, in the present invention, the length of the hooks 2a, 2b in the front-rear direction is twice the length of the notch s in the front-rear direction, corresponding to the case where a large number of scaffold plates A are connected in the longitudinal direction. Molded to. This will be described in more detail below.

1 to 4 show a scaffold according to an embodiment of the present invention. This scaffolding board A includes a board body 1 and a board body 1
Hooks 2a, 2b provided on both sides of the front and rear ends of the
And baseboards 3 and 3 detachably provided on the upper surfaces on both sides of the baseboard. However, the baseboard 3 may be brought into contact with both side surfaces of the plate body 1.

At the front and rear ends of the plate body 1, horizontal auxiliary plates 4 each having a notch s are provided in the axial direction, and hooks 2a and 2b are arranged on both sides of the auxiliary plate 4 corresponding to the notches s. Has been established. One of these hooks 2a
The axis of the other hook 2b is slightly shifted from the axis of the other hook in the lateral direction. Therefore, as shown in FIGS. 1 and 3, when the two scaffolds A, A are connected in the axial direction, even if the hooks 2a, 2b are hooked on the horizontal member 5 of the framed scaffold or the like, the hooks 2a, 2b are hooked. 2b does not interfere. In addition, the auxiliary plates 4 and 4 have their ends abutting or approaching each other to form a horizontal crossing plate and a gap closing plate, and since they are horizontal, there is no unevenness, and safety is ensured without workers tripping over. it can.

FIG. 2 shows two sides of the plate body 1 near the front and rear ends.
As shown in FIG. 3, a vertical mounting hole 6 is formed.
A pin 8 is provided in the vertical direction on the outer side near the front and rear ends of the skirting board 3 via a bracket 7.
Of the main body 3a. Thus, the left and right baseboards 3, 3 are detachably attached to the scaffold A by inserting the pins 8 into the attachment holes 6 from above.

As shown in FIGS. 1 and 5, reinforcing channels 3a and 3b having an L-shaped cross section are provided along the longitudinal direction on the upper and lower sides of the main body of the baseboard 3. The bracket 7 includes a plate-shaped main body 7a and a cylindrical portion 7b formed at the center of the main body 7a, and the pins 9 are inserted into and fixed to the cylindrical portion 7b.

The pin 9 extends downward through the lower channel 3b, and is inserted into the mounting hole 6 formed by the pipe 6a.

A locking piece 9a is attached to the lower end of the pin 9 via a spring so as to be freely retractable. After the pin 9 is inserted into the mounting hole 6, the locking piece 9a protrudes and a reinforcing frame on the scaffold plate A. The baseboard 3 is hooked on the lower surface of the base 1a to prevent the baseboard 3 from slipping upward. The locking piece 9a may have another structure as long as it can be detachably hooked on the reinforcing frame 1a.

For example, as shown in FIG. 6, a plate-shaped locking piece 9b having a guide elongated hole 9c at the center may be used. The locking piece 9b is a guide 9 provided on the pin 9 in the lateral direction.
d is rotatably mounted via a long hole 9c. When inserting the pin 9 into the mounting hole 6, the pin 9 is kept vertical. When the pin 9 is locked on the lower surface of the reinforcing frame 1 a, the pin 9 is rotated about the guide 9 d and then slid horizontally as shown by a dotted line. Just keep it.

The baseboard 3 may be mounted using another positioning member instead of the pin 9. For example, as shown in FIG. 7, the positioning member 20 includes a bracket 10 fixed to the center of the outer surface of the main body of the baseboard 3, and a support rod 11 inserted into a hole of the bracket 10 so as to be movable vertically and rotationally.
And a coil spring 12 for urging the support rod 11 upward.
And the like, a hook 13 integrally provided at the lower end of the support rod 11 in an L-shape, and a handle 14 integrally provided at the upper end of the support rod 11 in an L-shape.

As in the case of FIG. 5, reinforcing channels 3a and 3b are provided along the longitudinal direction on the upper and lower sides of the main body of the baseboard 3, and the lower channel 3b is rotatably supported by a support rod 11 through a hole. Penetrates.

The bracket 10 has two upper and lower support pieces 10.
a, 10b, and is formed in a U-shape.
A support rod 11 penetrates vertically and rotatably through holes formed in the holes 10a and 10b.

The spring seat 1 is provided above the support rod 11.
5 is connected as a stopper, and a coil spring 1 is provided between the spring seat 15 and the lower supporting piece 10b.
2, the support rod 11 is always urged upward, and the spring seat 15 is normally pushed up to a position where it comes into contact with the lower surface of the upper support piece 10a.

As shown in FIG. 7, the hooking piece 13 is
In the lower surface of the frame, that is, at the position where the baseboard 3 is hooked on the reinforcing frame 1a, even if the baseboard 3 attempts to move upward for some reason, the upward movement of the hooking piece 13 is restricted by the scaffolding plate A. The tree 3 does not move and does not come off the scaffold A. When removing the baseboard 3, the support rod 11 is pushed down against the coil spring 12 via the handle 14, and then the arrow X, 90 degrees.
Rotate 90 degrees as shown in Y and remove from the lower surface of scaffold A. Therefore, the regulation in the vertical direction is eliminated, and the baseboard 3 can be removed.

The structure of the reinforcing plate 4 and the hooks 2a and 2b will be described in detail with reference to FIGS.

The auxiliary plate 4 comprises a socket portion 4a for fitting the plate body 1, a horizontal piece 4b extending horizontally from the upper end of the socket portion 4a, and cutouts s formed on both left and right sides of the horizontal piece 4b. .

The hooks 2a and 2b have a hook main body a, a curved groove b formed on the lower side of the main body a, a fitting portion e provided integrally with an end of the main body a, and a long hole c on the side surface of the main body a. c and pin d,
and a curved lock plate f that is rotatably connected via the d.

The fitting portion e has a shorter dimension in the vertical direction than the main body a, and the fitting portion e is a wall K of the socket 4 a of the auxiliary plate 4.
Through the hole formed in the main body 1 of the scaffold A,
The fitting portion e and both surfaces of the wall body K are fixed by welding g, and
The lower surface of the horizontal piece 4b is also fixed by welding g. Therefore, the hooks 2a, 2b and the reinforcing plate 4 are firmly fixed, and at the same time, these members are firmly fixed to the plate body 1 side, and furthermore, the occurrence of breakage can be prevented. The upper surface P of the main body a of the hooks 2a and 2b is formed horizontally and is set at the same height as the upper surface Q of the auxiliary plate 4, and the two upper surfaces P and Q form a continuous flush horizontal surface.

Further, the longitudinal dimension L of the main body of the hooks 2a and 2b is set to be twice or almost twice the longitudinal dimension M of the notch s. (FIG. 3) For this reason, as shown in FIG. 3, when the two front and rear scaffolding plates A are erected and connected via the support member 5, the notches s of both are simultaneously connected to each other to have an arbitrary size. Space occurs. However, at this time, the hooks 2a,
2b are arranged in parallel to close the gap formed by the notch s and the bases and tips of the hooks 2a and 2b are horizontal, so that the bases and tips of the hooks 2a and 2b are flush with the auxiliary plate 4. No gap is continuously generated in this portion. Therefore, although a slight gap remains on both left and right sides of each hook 2a, 2b, the generation of the gap can be considerably restricted as compared with the conventional case where the hook having the curved upper surface is used.

[0033]

According to the present invention, the following effects can be obtained.

(1) According to the first and second aspects of the present invention, since the auxiliary plates are protruded at the front and rear ends of the plate main body, the auxiliary plates can be used as compared with the case where the hooks are simply provided on the plate main body. The gaps formed at the front and rear ends can be closed to a large extent, so that there is no need to dispose a gap closing plate.

(2) Similarly, even if a notch is provided in the auxiliary plate so as not to interfere with the hook, the hook extends in the gap formed by the notch, and the upper surface of the hook is horizontal and the upper surface of the auxiliary plate is horizontal. As a result, no gap is formed on the upper surface side of the hook, and the gap can be made as small as possible.

(3) According to the second aspect of the present invention, when two scaffolding plates are installed adjacent to each other in the longitudinal direction, the gap due to the notch is doubled, but the hook is smaller than the size of the notch. Since it is set to be twice, generation of a gap between the base end side and the tip end side of the hook can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view of a scaffold according to an embodiment of the present invention.

FIG. 2 is a plan view of the scaffold.

FIG. 3 is a partially enlarged plan view of FIG. 1;

FIG. 4 is a partially cutaway enlarged side view of the scaffold.

FIG. 5 is a perspective view of a pin according to one embodiment.

FIGS. 6A and 6B are a front view and a side view, respectively, of a pin according to another embodiment, partially cut away.

FIG. 7 is a perspective view of a positioning member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Board main body 2a, 2b Hook 4 Auxiliary plate 5 Horizontal material L, M dimension s Notch

Claims (2)

[Claims] 1. A plate body, auxiliary plates provided at both front and rear ends of the plate body and extending on the same extension line as the upper surface of the plate body, hooks provided on both left and right sides of the front and rear ends of the plate body, On the left and right sides of the board are notches provided corresponding to the hooks, and on a scaffold board that is installed via the hooks on a framed scaffold or a horizontal member provided on a construction / civil engineering work site, the upper surface of the hooks is A scaffold plate formed horizontally and set at the same height as the upper surface of the auxiliary plate. 2. The scaffold according to claim 1, wherein the front-rear dimension of the upper surface of the hook is formed to be twice the front-rear dimension of the notch.