JPH08284393A - Footboard for temporary scaffold - Google Patents

Abstract

PURPOSE: To provide a simple-structural, sturdy, easily-handling, and low-cost footboard for scafolds which can be securely fixed between scaffold boards with level differences or gaps therebetween to cover the level differences or gaps and which can be safely and smoothly transferred. CONSTITUTION: A holder 10 is fitted to the rear face of one end edge of a footboard body 1 so as to be freely transferable toward the footboard 1. The holder 10 can be closely positioned to the footboard by the rotation of a fastening bolt 15. Clippers 20 can be fixed at the rear face of both right and left side edges of the other end of footboard body 1. A protrusion or the periphery of the frame of one scaffold board can be held by the one end edge of footboard body and the holder 10. A protrusion or the periphery of the frame of the other scaffold board can be held by the right and left side edges at the other end of the footboard body 1 and the right and left clippers 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is mainly applied to the risk of an operator due to a step between adjacent scaffold plates when constructing a temporary structure or the like at a construction site. With regard to the temporary scaffolding footboard that can eliminate the problem, when there is a step between one scaffolding board and the other scaffolding board, this step is covered and movement to each scaffolding board is safe and smooth. Or if there is a step between one scaffolding board and the other scaffolding board and there is a clearance space between one scaffolding board and the other scaffolding board, this clearance space The present invention relates to a temporary scaffolding tread which is covered so as to be buried and can be safely and smoothly moved to each scaffolding plate.

[0002]

2. Description of the Related Art Conventionally, as a tread of this type, for example,
There are auxiliary steps for framework scaffolding as described in Japanese Utility Model Publication No. 6-47494. This is a thin iron plate, or an expanded metal plate, etc., with a hook-shaped fixed leg that hooks on the frame frame to be hooked to the frame scaffolding on the lower side of the step part that is bent in a substantially V shape at appropriate places. It is a thing.

[0003]

However, in the above-mentioned auxiliary steps for frame scaffolding, the hook-shaped fixed leg is hooked on the cloth end, and the step part of the opposite leg of the fixed leg is fixed to the cloth plate. Since it is only placed, there is a risk that the step portion will come off when an unexpected external force is applied to the arm on the opposite side of the fixed leg. Further, in order to hook the hook-shaped fixed leg on the cloth frame end, there is a problem that it cannot be attached unless there is a gap between the cloth frame end and another cloth frame. That is, it is difficult to obtain a reliable attachment state to the cloth plate, and the attachment state is also limited.

[0004]

SUMMARY OF THE INVENTION Therefore, the present invention was created to solve the above-mentioned difficulties and the like.
The temporary scaffolding tread A described above is equipped with a holding body 10 on the back surface of one end of the treading body 1 so as to be movable toward the treading body 1, and the holding body 10 is rotated by the tightening bolt 15. 1, the holding body 20 can be attached to the left and right side edge rear surfaces of the other end edge of the tread body 1 respectively, and one end edge portion of the tread body 1 and the holding body 10 The scaffolding board B is configured so as to be able to hold the projecting portion B2 of the frame B1 or the peripheral portion thereof, and the footboard body 1
The other end edge of the right and left side edge portions and the left and right holding bodies 20 are configured to be able to hold the projecting portion B2 or the peripheral portion of the frame B1 of the other scaffolding plate B, respectively.

Further, the footboard A for temporary scaffolding according to claim 2
Forms the width of the tread body 1 to be approximately the same as the width of the scaffold plate B,
A means is adopted in which the frame B1 of the other scaffold plate B can be held in the width direction by the other edge portion of the tread body 1 and the left and right holding bodies 20.

Further, the footboard A for temporary scaffolding according to claim 3
Employs a means for arranging the holding body 10 at the central portion of the one edge of the tread body 1.

Then, the footboard A for temporary scaffolding according to claim 4
Adopts a means for providing the surface of the tread body 1 with the anti-slip means 4.

[0008]

In the temporary scaffolding tread A according to the first aspect of the present invention, the holding body 10 is mounted on the back surface of the tread main body 1 at one end thereof so as to be movable toward the tread main body 1. Moreover, the tightening bolt 15 is rotated to approach the tread body 1. Then, the holding body 10 and the one end edge portion of the tread body 1 hold the protruding portion B2 or the peripheral portion of the frame B1 of the scaffolding plate B on one side. Then, the hug 20
Are mounted on the back surfaces of the left and right side edge portions of the other end edge of the tread body 1, and the right and left holding bodies 20 and the other end edge of the tread body 1 and the left and right side edge portions are the scaffolding board B on the other side. The projecting portion B2 of the frame B1 or the peripheral portion thereof is held.

In the temporary scaffolding tread A according to claim 2, the width of the tread body 1 is about the same as the width of the scaffolding plate B, and the other edge portions and the right and left holding bodies 20 are provided. Holds the frame B1 of the other scaffold plate B in the width direction.

Further, in the temporary scaffolding tread A according to the third aspect, the holding body 10 is arranged at the central portion of one end edge of the tread body 1 and the projecting portion of the frame B1 of one scaffolding B. Hold B2 or the surrounding area in good balance.

Then, the footboard A for temporary scaffolding according to claim 4
In this case, the non-slip means 4 is provided with the surface of the tread body 1 on the crocodile surface to ensure the safety of movement of the worker.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on illustrated examples.
In the figure, A is a temporary scaffolding capable of eliminating the worker's risk due to the step when the scaffolding boards B adjacent to each other are formed when constructing a temporary structure or the like at a construction site. If there is a step between one scaffold board B and the other scaffold board B, this temporary scaffold footboard A covers the step and is safe to move to each scaffold board B. To be performed smoothly and smoothly, or there is a step between one scaffold plate B and the other scaffold plate B, and there is a gap space between one scaffold plate B and the other scaffold plate B. In the case (for example, FIG. 3), the gap space is covered so as to be covered, and movement to each scaffold plate B can be performed safely and smoothly. In addition, the one scaffolding plate B and the other scaffolding plate B can be securely attached, and the one scaffolding plate B and the other scaffolding plate B can be connected.

The temporary scaffold tread A is, specifically, a part or all of an iron plate, or a part or all of an expanded metal, or an appropriate combination thereof to form a substantially rectangular plane. A pair of mounting pieces 7 that constitute the tread body 1 of the
Then, the holding body 10 is mounted via a mounting shaft 13 so as to be swingable in the vertical direction, and further, a tightening bolt 15 is inserted into an insertion hole 6 of a concave portion 5 provided at one end of the tread body 1 in a crocodile. At the same time, the tightening bolt 15 is screwed onto the holding body 10, and the holding body 10 swings by the rotation of the tightening bolt 15, so that the scaffolding board B on one side is supported by the one edge portion of the tread body 1 and the holding body 10. The frame B1 is configured so that the protruding portion B2 or the peripheral portion thereof can be securely held. The other end of the tread body 1 can be attached to the mounting nuts 23 fixed to the rear surfaces of the left and right side edges of the other end of the tread body 1 via mounting bolts 24. The left and right side edge portions and the left and right holding bodies 20 are configured to surely hold the projecting portion B2 or the peripheral portion of the frame B1 of the other scaffolding plate B, respectively. By the way, the holding body 10 is mounted so as to move substantially parallel to the tread body 1, and the holding body 10 approaches the tread body 1 by the rotation of the tightening bolt 15 to hold the tread body 1 at one edge. The body 10 and the projecting portion B2 or the peripheral portion of the frame B1 of the scaffolding plate B on one side may be securely sandwiched (not shown).

The step board main body 1 is bent into a substantially mountain shape so as to slightly project upward, and is formed to have a width approximately the same as the width of the scaffold board B. Folding pieces 2 and 3 are provided in series on the back surface of the part to reinforce this part, and anti-slip means 4 is appropriately provided on the front surface.
Then, a pair of mounting pieces 7 projecting from the rear surface of one end of the tread body 1 are provided with a mounting hole 8 through which the mounting shaft 13 is inserted.

Further, a concave portion 5 having a substantially circular plane shape is formed in a central portion of one end edge of the tread body 1 so that the head portion of the tightening bolt 15 can be accommodated therein. An insertion hole 6 is formed for inserting the.

The tread main body 1 is colored (for example, red, yellow, etc.) with excellent visibility.
The presence may be highlighted to the operator to help prevent accidents. The non-slip means 4 may be configured by using the tread main body 1 by using an iron plate having projections appropriately provided in advance, expanded metal having a large anti-slip effect, or the like. The main body 1 may be configured by forming a substantially frustoconical cylindrical projection with a surface protruding from the surface.

The holding body 10 is formed, for example, by bending a metal plate appropriately, and the base ends of the left and right side pieces thereof are provided with mounting holes 11 through which the mounting shaft 13 is inserted, and the bases thereof. A substantially oval insertion hole 12 through which the tightening bolt 15 is inserted is formed in the central portion of the piece, and a nut screwed to the tightening bolt 15 is provided in a portion surrounded by the base piece and the left and right side pieces. 16 is attached. The mounting shaft 13 may use the bolts and nuts 14 as shown in the drawing, or may have other configurations. Reference numeral 17 in the drawing denotes a split pin that is attached to the tip portion of the tightening bolt 15 so as to prevent the nut 16 from falling off.

The holding body 20 has a mounting bolt 24 at the base thereof.
An insertion hole 21 through which the slab is inserted is bored, and a substantially cylindrical holding projection 22 is continuously provided at the lower end of the base in a diagonally downward direction.
It is fixed to a substantially nut-shaped mounting nut 23 fixed to the tread body 1 via a mounting bolt 24, and at this time, the holding protrusion 22 is a lower surface portion of the protrusion B2 of the frame B1 of the other scaffolding plate B, or , Is configured to come into contact with the lower surface of the peripheral portion of the frame B1.

The scaffold plate B is a frame B1 having a rectangular frame shape in a plane.
A projecting portion B2 having a generally horizontal cross section and projecting outward is provided around the upper part of the, and a rectangular tread plate made of expanded metal or the like is fixed so as to be placed on the projecting portion B2. is there.

By the way, the specific construction, shape, size and material of the footboard A for temporary scaffolding, the specific construction, shape, size and material of the footboard body 1, the specific construction, shape and installation position of the anti-slip means 4, Number, specific configuration, shape, size, material of holding body 10, specific attachment means to tread body 1, arrangement position, number of arrangements, specific configuration of clamp bolt 15, shape, size, material, holding The specific configuration, shape, size, material of the body 20, and the specific configuration, shape, size, etc. of the scaffolding plate B to which the temporary scaffolding tread A is attached are not limited to the illustrated examples and can be freely set. Is.

The temporary scaffolding footboard A of the present invention is constructed as described above. Next, an example of its use will be described.
First, one end edge portion of the tread body 1 is placed on the projecting portion B2 of the frame B1 of the one scaffolding plate B at a high position or the upper portion of the peripheral portion, and then the tightening bolt 15 is rotated.
The holding body 10 is swung so as to approach the tread body 1 (or translated so as to approach the tread body 1), and one edge portion of the tread body 1 and the holding body 10 make one of the scaffolding boards B of one side. The protruding portion B2 or the peripheral portion of the frame B1 is clamped to be in a fixed state. Then, the holding bodies 20 are attached to the mounting nuts 23 at the other end edge portions of the tread body 1 placed on the other scaffolding plate B at the lower position via the mounting bolts 24, respectively, and the tread body is mounted. The other end edge of 1 and the left and right side edge portions and the holding projections 22 of the left and right holding bodies 20 hold and hold the protruding portion B2 of the frame B1 of the other scaffolding plate B or the peripheral portion, respectively. And That is, when one scaffolding board B and the other scaffolding board B are covered with a step by the temporary scaffolding footboard A or there is a gap space between the one scaffolding board B and the other scaffolding board B. Moreover, the gap space is covered so that the scaffold plate B can be moved safely and smoothly. By the way, since one scaffolding board B and the other scaffolding board B are connected via the temporary scaffolding footboard A, one scaffolding board B and the other scaffolding board B are connected to each other. No wire or metal fittings are required.

[0022]

Therefore, according to the temporary scaffolding tread according to the first aspect of the present invention, the holding body is attached to the rear surface of the one end of the tread body so as to be movable toward the tread body, and is clamped by the rotation of the tightening bolt. The body is formed so as to approach the tread main body, and the other end edge of the tread main body can be attached to the back side of the left and right side edge parts respectively, and one scaffold can be attached by the one edge part of the tread main body and the holding body. It is configured so that the projecting portion or the peripheral portion of the plate frame can be held, and the other end edge of the tread body is the left and right side edge portions and the left and right holding bodies, and the projecting portion or the peripheral portion of the frame of the other scaffold plate Since it was configured to be able to hold each part, on one scaffolding board with steps and the other scaffolding board,
The temporary scaffolding footboard can be securely attached, and movement to each scaffolding board can be performed safely and smoothly. Furthermore, in addition to the step, even if there is a gap space between one scaffold plate and the other scaffold plate, it can be covered with the temporary scaffold tread plate so as to fill the gap space,
The temporary scaffolding treads can be securely attached to the respective scaffolding plates, and the worker can move safely and smoothly.
Moreover, one scaffolding plate and the other scaffolding plate can be reliably connected by the temporary scaffolding tread plate, and the temporary scaffolding tread plate with higher safety can be obtained.

In particular, by rotating the tightening bolt, it is possible to hold the projecting portion or the peripheral portion of the frame of one scaffolding plate between the holding body and one end edge portion of the tread body, and by mounting the left and right holding bodies on the tread body. , The left and right holders and the left and right side edge portions of the other end edge of the tread body can hold the projecting portion or the peripheral portion of the frame of the other scaffolding board, respectively, and the mounting work does not require skill. Anyone can do it easily, quickly and reliably. That is, the temporary scaffolding tread is easy to handle and its mounting state is not limited, and is excellent in workability. Moreover, the structure of the footboard for temporary scaffolding itself is simple,
Robust, durable, suitable for repeated use, suitable for mass production, and affordable.

The temporary scaffolding tread according to claim 2 is:
Since the width of the tread plate body is formed to be approximately the same as the width of the scaffold plate, the other edge portion of the tread plate body and the left and right hugs are configured to hold the frame of the other scaffold plate in the width direction. The width of the temporary scaffolding footboard can be aligned with the width of the scaffolding board, and moreover, the frame of the other scaffolding board is stably stabilized in the width direction by the other end edge portion of the footstep body and the right and left holding bodies. And you will be able to hold him securely.

Further, the temporary scaffolding tread according to claim 3 is:
Since the holding body is arranged in the central part of the edge of the tread body,
By the one edge portion of the tread body and the holding body, the protruding portion or the peripheral portion of the frame of one scaffolding plate can be held stably in a well-balanced manner.

Further, in the temporary scaffolding tread according to the fourth aspect, the surface of the tread body is provided with the anti-slip means, so that the worker can safely move on the temporary scaffolding tread.

[Brief description of drawings]

FIG. 1 is an exploded perspective view illustrating a footboard for temporary scaffolding of the present invention.

FIG. 2 is a plan view illustrating a tread plate for temporary scaffolding of the present invention.

FIG. 3 is a vertical cross-sectional front view illustrating a mounting state of the temporary scaffolding tread plate of the present invention.

FIG. 4 is a partially omitted vertical cross-sectional side view illustrating an attached state of a temporary scaffolding tread plate of the present invention.

[Explanation of symbols]

A Temporary scaffolding tread 1 Tread body 2 Folding piece 3 Folding piece 4 Non-slip means 5 Recess 6 Recess 6 Insert hole 7 Mounting piece 8 Mounting hole 10 Holding body 11 Mounting hole 12 Insertion hole 13 Mounting shaft 14 Nut 15 Tightening bolt 16 Nut 17 70% Pin 20 Holding body 21 Insertion hole 22 Holding projection 23 Mounting nut 24 Mounting bolt B Scaffolding board B1 Frame B2 Projection

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Makoto Saito 3327 Shinkawa, Niisato-mura, Seta-gun, Gunma Holly Co., Ltd. Gunma Factory (72) Inventor Nobuo Matsumura 1-7-10 Nihonbashi Ningyocho, Chuo-ku, Tokyo No. Holly Co., Ltd. (72) Inventor Takashi Nagumo 1-7-10 Nihonbashi Ningyocho, Chuo-ku, Tokyo Inside Holly Co., Ltd.

Claims (4)

[Claims] 1. A tread body is formed by mounting a holding body on the back surface of one end edge of the tread body so as to be movable toward the tread body, and by causing the holding body to approach the tread body by rotation of a tightening bolt. The other end edge of the foot can be attached to the back surface of the left and right side edges, and the one edge part of the tread body and the holding body can hold the projecting part or the peripheral part of the frame of one scaffolding plate. In addition to the above, the other end edge of the tread body is formed so that the left and right side edge portions and the left and right hugs can respectively hold the projecting portion or the peripheral portion of the frame of the other scaffolding board. A footboard for temporary scaffolding. 2. The footboard body is formed to have a width substantially equal to the width of the scaffold board, and the other edge portion of the footboard body and the right and left hugs can hold the frame of the other footboard in the width direction. The tread plate for temporary scaffolding according to claim 1, which is configured as described above. 3. The temporary scaffolding tread according to claim 1 or 2, wherein the holding body is arranged at a central portion of one end edge of the tread body. 4. The footboard for temporary scaffolding according to claim 1, 2 or 3, wherein the surface of the footboard main body is provided with anti-skid means.