JP5648274B2 - Step absorption plate of scaffolding plate in work scaffold - Google Patents

Description

  The present invention relates to a scaffolding plate in a working scaffold for eliminating a level difference caused by the end portions of the scaffolding plate provided on the working scaffold constructed along the outer side surface of the building frame at the construction site being overlapped vertically. This relates to a step absorbing plate.

  It is a common practice to construct work scaffolds at construction sites where various structures are constructed. 3 (a) and 3 (b) show an example of a work scaffold. The work scaffold 50 has vertical struts 1 arranged at required intervals along the outside of the building frame 51, and the strut 1 A horizontal member 2 composed of a single pipe pipe or a support bracket or the like extending in the horizontal direction for supporting the scaffold plate is fixed using a clamp or the like, and a scaffold composed of, for example, a wooden scaffold plate 3a is placed on the transverse member 2 A plate 3 is placed so that an operator can pass. The wooden scaffold board 3a is generally 3.6m in length, 20cm in width, and 3.5cm in thickness, and is usually used to ensure a walking width of 40cm or more as required by law. As shown in FIG. 3B, two scaffold plates 3a are arranged side by side.

  Further, instead of the wooden scaffold plate 3a, a metal scaffold plate 3b made of an aluminum material having a hole 4 on its surface as shown in FIG. 4 or a mesh steel material is also used. As the metal scaffold plate 3b, one having a length of 2.0 m to 4.0 m, a width of 25 cm, and a thickness of 4.0 cm is generally used.

  The above-mentioned scaffolding plate 3 is arranged so that it can be continuously swiveled in the same direction along the outer side surface of the building frame when arranged in a required number of steps (multiple work floors) according to the height of the building frame. There is a case. Further, as shown in FIG. 5, the scaffold plate 3 may be arranged such that the upper scaffold plate 3 and the lower scaffold plate 3 intersect each other.

  Since the scaffolding plate 3 serves as a walkway for the operator to move, it is preferable that the scaffolding plate 3 is arranged so that a coherent walking surface is formed, but in practice, FIGS. 3 (a) and 3 (b). As shown in Fig. 5, the end of one scaffolding plate 3 is arranged so that the end of the other scaffolding plate 3 is overlapped on a straight line, or the scaffolding plates 3, 3 are crossed as shown in Fig. Therefore, a step portion 5 is formed on the upper surface serving as a walking surface in the overlapping portion of the lower scaffold plate 3 and the upper scaffold plate 3.

  As shown in FIGS. 3A and 3B, the end portions of the scaffolding plates 3 and 3 overlapped with each other as shown in FIG. 6, such as a rubber band 7 having locking metal fittings 6a and 6b at both ends, a wire number, or the like. The lashing material is used for lashing.

  Workers who pass on the scaffolding board 3 often move while holding construction materials or the like, so that the front is difficult to see, or the construction materials or the like move with care so that they do not interfere with the column 1 or the like. As a result, attention to the foot becomes insufficient, so that there is a possibility that a construction material or the like is dropped, the scaffolding plate 3 is stepped off, or the platform plate 3 falls over due to hitting the stepped portion 5 of the scaffolding plate 3.

  In order to solve such a problem, the step plate is a step plate arranged on the step formed by overlapping the end portions of the two scaffold plates of the scaffold plate in the vertical direction. On the other side of the scaffolding plate, the other end is overlaid on the lower scaffolding plate, and on the back side, a holder that can be engaged with the lower scaffolding plate is attached (see Patent Document 1).

JP 2003-172023 A

  However, in the step plate described in Patent Document 1, it is necessary to form the step plate using a metal or other high-strength plate in order to form an inclined slope at the step portion. The step plate made of a high-strength plate has a problem that it becomes slippery particularly when wet with rain or the like.

  In addition, since the step plate for the step is fixed to the scaffolding plate by a metal fitting, the structure of the metal fitting becomes complicated and the cost is increased, and the attachment / detachment by the metal fitting is troublesome, and it becomes a work scaffold. Since it takes time to attach and detach the step plate for the step portion of each of the scaffold plates arranged in large numbers, there is a problem that the work period is extended accordingly.

  The present invention has been made in view of the above-mentioned conventional problems, and can prevent the problem that the operator crawls and absorbs the step difference of the scaffold plate in the work scaffold that can be easily attached to the step portion of the scaffold plate. It is intended to provide a plate.

The present invention provides a walking surface by placing an end of the upper scaffolding plate on the upper surface of the lower scaffolding plate on the cross member fixed to the support arranged along the outside of the building frame. A step absorption plate of a scaffold plate in a work scaffold in which a step portion is formed, wherein the step absorption plate is formed by a plate body made of an elastic material, and the plate body is formed at an end portion of an upper scaffold plate and a lower portion. A fitting portion that fits into a step formed between the upper surface of the side scaffolding plate and a downward slope from the vicinity of the upper end of the upper scaffolding plate toward the upper surface of the lower scaffolding plate. A clamp that has an inclined tread surface that is formed, and is sandwiched between the upper scaffolding plate and the lower scaffolding plate, and is formed integrally with the plate body so as to be engaged with the upper scaffolding plate and the lower scaffolding plate. In working scaffolds characterized by having locking means made of plates Step absorbing plate scaffold plate, it relates to.

  In the step absorption plate of the scaffold plate in the work scaffold, the plate body may be formed of a rubber-based material or a resin material.

  According to the step absorption plate of the scaffolding plate in the working scaffold of the present invention, the stepped portion in the overlapped portion of the scaffolding plate end portion is eliminated by the inclined tread surface provided in the plate body installed in the stepped portion, and thus the operator can The plate body can be safely moved on the scaffolding plate, and the plate body with a simple configuration is easy to install on the stepped portion of the scaffolding plate. Further, the plate body is made of an elastic material and has a locking means. By providing, the outstanding effect that the problem that the plate main body installed in the level | step-difference part moves from an installation position can be produced can be show | played.

(A) is a front view which shows one Example of the state which installed the level | step difference absorption plate of this invention in the level | step-difference part of a scaffold board, (b) is the perspective view which looked at the level | step difference absorption plate of (a) from diagonally upward. . (A) is a front view which shows the reference example of the state which installed the other level | step difference absorption plate of this invention in the level | step-difference part of a metal scaffolding board, (b) is the perspective view which looked at the level | step difference absorption plate of (a) from diagonally downward. FIG. (A) is a front view which shows the state which installed the scaffold board on the crosspiece of a work scaffold, (b) is the perspective view which looked at the scaffold board of (a) from diagonally upward. It is explanatory drawing in the case of arrange | positioning so that a scaffold board may cross | intersect. It is explanatory drawing which shows an example of the securing material which consists of a rubber band which secures the edge parts of the piled scaffold board.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIGS. 1A and 1B show an embodiment of the step absorbing plate of the present invention. The same components as those shown in FIGS. To do. The step absorbing plate 8 in FIGS. 1A and 1B is formed by a plate body 9 made of a resilient material. The plate body 9 has a fitting portion 10 that fits into a step portion 5 formed between an end portion 3 ′ of the upper scaffold plate 3 and the upper surface of the lower scaffold plate 3. The fitting portion 10 has a flat lower surface 10a that contacts the upper surface of the lower scaffold plate 3, and a vertical surface 10b that contacts the end surface of the upper scaffold plate 3 perpendicular to the lower surface 10a. Furthermore, the upper part of the fitting part 10 has an inclined tread surface 11 formed in a downward gradient from the vicinity of the end 3 ′ of the upper scaffold plate 3 toward the upper surface of the lower scaffold plate 3. Thus, the fitting part 10 has a substantially triangular side shape. Further, at the position of the vertical surface 10b close to the lower surface 10a of the fitting portion 10, the upper and lower scaffolding plates 3 and 3 extend in the same direction as the lower surface 10a in the direction opposite to the inclined tread surface 11. The locking means is formed by integrally providing a thin holding plate 12 to be held. The plate body 9 disposed in the stepped portion 5 is formed so that the upper end of the inclined tread surface 11 coincides with the upper end of the end portion 3 ′ of the upper scaffolding plate 3.

  The plate body 9 is made of an elastic material made of a rubber-based material or a foamed resin material such as a foamable epoxy resin, a urethane resin, a polyethylene resin, a polypropylene resin, and the like. Various materials can be used as long as they have strength. Furthermore, the tread surface 11, the lower surface 10a of the plate body 9 and the upper surface of the holding plate 12 may be provided with unevenness for preventing slipping, and when the plate body 9 is formed of a foamed resin material, A coating for preventing slipping may be applied to the tread surface 11, the lower surface 10 a and the upper surface of the holding plate 12. The plate body 9 may be formed with a width equal to the width of the one scaffold plate 3, and the width equivalent to the width of the two scaffold plates 3 arranged side by side (as opposed to the above). (Double width).

  The operation of the embodiment shown in FIGS. 1A and 1B will be described.

  As shown in FIGS. 3 (a) and 3 (b), when the end portions of the scaffold plate 3 are arranged to overlap each other, as shown in FIG. Of the step plate 5 so that the vertical surface 10b is in contact with the end surface of the upper scaffold plate 3 so as to be held between the scaffold plate 3 and the end portion 3 'of the upper scaffold plate 3. The plate body 9 is arranged. The plate body 9 may be disposed so as to sandwich the holding plate 12 at the same time when the end portions of the scaffold plate 3 are overlapped, and after the placement of the scaffold plate 3 is finished, You may arrange | position the plate main body 9 so that the clamping board 12 may be inserted, lifting the edge part 3 'of the upper scaffold board 3. FIG. At this time, since the end portion of the scaffold plate 3 can be lifted with one hand, the plate body 9 can be easily arranged. The scaffold plate 3 on which the plate body 9 is arranged is secured to the rubber band 7 or the like with a securing material. Further, as shown in FIG. 5, even when the scaffolding plates 3 intersect and are arranged up and down, the plate body 9 can be arranged in the stepped portion 5 in the same manner as described above. The plate main body 9 shown in FIGS. 1A and 1B can be applied to the case where the scaffold plate 3 is a wooden scaffold plate 3a or a metal scaffold plate 3b.

  As described above, by arranging the plate body 9 in the stepped portion 5, the stepped portion 5 is eliminated by the inclined tread surface 11 provided in the plate body 9, and thus the operator can safely move on the scaffold plate 3 can do. Furthermore, since the plate body 9 has a simple configuration and the installation work to the step portion 5 of the scaffold plate 3 is easy, the construction period can be shortened. Further, the plate main body 9 is made of a resilient material, and includes a holding plate 12 that is held between the lower scaffold plate 3 and the vicinity of the end 3 ′ of the upper scaffold plate 3. Since the stop means is provided, it is possible to prevent the problem that the plate body 9 installed on the stepped portion 5 moves from the installation position due to the frictional force caused by clamping.

  Further, as described above, the holding plate 12 of the plate body 9 formed of the elastic material is held between the lower scaffold plate 3 and the end portion 3 ′ of the upper scaffold plate 3. By acting as a cushioning material, it is possible to reduce noise based on the walking of the worker and vibration due to wind.

2 (a) and 2 (b) show a reference example of the present invention adapted to be applied to a work scaffold provided with the metal scaffold plate 3b shown in FIG. The plate body 9 formed of the elastic material shown in b) is different from the embodiment of FIGS. 1A and 1B in that the holding plate 12 is not provided and is fitted to the stepped portion 5. An extension portion 13 is formed in the fitting portion 10 so as to extend to the upper surface of the upper scaffold plate 3a, and the lower surface of the extension portion 13 is provided on the upper surface of the metal scaffold plate 3b. The locking means is configured by providing the locking protrusion 14 fitted in the hole 4. At this time, since the holes 4 are regularly formed at the same position on the upper surface of the metal scaffolding plate 3b, the locking protrusions 14 provided in the extension portion 13 can be reliably fitted into the holes 4. .

In the reference example of FIGS. 2A and 2B, after the metal scaffolding plate 3b is overlaid, the locking projection 14 provided on the extension 13 is provided with the hole 4 in the upper scaffolding plate 3a. Since the plate main body 9 can be arranged by fitting to the plate, the arrangement work of the plate main body 9 can be further simplified as compared with the above embodiment. Further, since the locking means including the locking protrusion 14 fitted into the hole 4 of the upper scaffolding plate 3b is provided, the plate body 9 installed on the stepped portion 5 reliably prevents the problem of moving from the installation position. be able to.

  In addition, the level | step difference absorption plate of the scaffold board | plate in the working scaffold of this invention is not limited only to the above-mentioned Example, Of course, it can add various changes within the range which does not deviate from the summary of this invention.

DESCRIPTION OF SYMBOLS 1 Support | pillar 2 Cross member 3 Scaffold board 3 'End 3a Wooden scaffold board 3b Metal scaffold board 4 Hole 5 Step part 8 Step absorption plate 9 Plate main body 10 Fitting part 11 Inclined tread 12 Gripping plate (locking means) )
13 Extension (locking means)
14 Locking protrusion (locking means)
50 Working scaffolds 51 Architectural frame

Claims (2)

A stepped portion is formed on the walking surface by placing the end of the upper scaffolding plate on the top of the lower scaffolding plate on the cross member fixed to the pillar placed along the outside of the building frame. A step-absorbing plate of a scaffold plate in a working scaffold, wherein the step-absorbing plate is formed by a plate body made of an elastic material, and the plate body includes an end portion of an upper scaffold plate and a lower scaffold plate And a slope formed with a downward slope from the vicinity of the upper end of the upper scaffolding plate toward the upper surface of the lower scaffolding plate. A tread that has a tread surface and is sandwiched between an upper scaffolding plate and a lower scaffolding plate, and is formed of a sandwiching plate formed integrally with the plate body so as to be engaged with the upper scaffolding plate and the lower scaffolding plate. Of a scaffolding plate in a work scaffold characterized by having stop means Difference absorbing plate. 2. The step absorbing plate for a scaffolding plate in a working scaffold according to claim 1, wherein the plate body is made of a rubber material or a resin material.

Images