JP3868213B2 - Scaffold prevention spacer - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a scaffold for preventing a side plate of a scaffolding plate from sliding in a framed scaffold that is constructed by linking a scaffolding plate between the cross members of a building frame for the scaffolding to lock the scaffolding plate. About.
[0002]
[Prior art]
As shown in FIG. 1, a scaffolding frame 4 used for a frame scaffold includes a pair of left and right vertical members 1, 1, a horizontal member 2 that connects the upper ends of both vertical members 1, 1, and a reinforcing member 3. , 3 and the gate shape. And there are three types of scaffold building frames 4 that are currently used, with dimensions between the vertical members 1 and 1 (distance between the shaft centers) of 1219 mm, 900 mm, and 600 mm. The scaffold building frame 4 shown in FIGS. 1 and 2 has a dimension Ha between the vertical members 1 and 1 of 1219 mm, and the scaffold building frame 4 shown in FIG. 4 has a dimension Hb between the vertical members 1 and 1 of 900 mm. The scaffold building frame 4 shown in FIG. 5 shows a scaffold with a dimension Hc of 600 mm between the longitudinal members 1 and 1.
[0003]
Further, the scaffold plate 5 spanned between the cross members 2 and 2 of the scaffold building frames 4 and 4 opposed to each other in the front-rear direction is formed by locking hooks 7 and 7 projecting from the front and rear ends of the scaffold plate body 6, respectively. As shown in FIGS. 2, 4, and 5, there are two types, a scaffold plate 5 having a width Wa of the scaffold plate body 6 of 500 mm and a scaffold plate 5 having a width Wb of the scaffold plate body 6 of 240 mm.
[0004]
[Problems to be solved by the invention]
Thus, when the two types of scaffolding plates 5 are used by being bridged over the three types of scaffolding frames 4 as described above, the following problems arise.
[0005]
That is, first, as shown in FIG. 2, two scaffolding plates 5 having a width Wa of a scaffolding plate body 6 of 500 mm are arranged in parallel to a scaffolding frame 4 having a dimension Ha between both longitudinal members 1 and 1 of 1219 mm. When using both scaffolding plates 5 and 5 together, pulling them to one vertical member 1 side of each scaffolding building frame 4 and bridging them to both scaffolding building frames 4 and 4, The gap Sa in the longitudinal direction of the cross member formed between the other vertical member 1 of the scaffold building frame 4 and the locking hook 7 locked to the cross member 2 near the vertical member 1 is about 125 mm. It becomes. Thus, when a gap of 125 mm is formed between one vertical member 1 of the scaffold building frame 4 and the locking hook 7 locked to the horizontal member 2 at a position close to the vertical member 1, the scaffolding plate 5 is ridden. When the worker works, if any force is applied to the scaffolding plate 5 with any time signature, the scaffolding plate 5 will slip in the direction of the gap, causing a very dangerous situation. Become.
[0006]
Further, as shown in FIG. 4, the scaffolding frame 4 having a dimension Hb between the vertical members 1 and 1 of 900 mm, the scaffolding board 5 having a width Wa of the scaffolding board main body 6 of 500 mm, and the width Wb of the scaffolding board main body 6 of 240 mm. When the two scaffolding plates 5 are used in a state where they are juxtaposed, the two scaffolding plates 5 and 5 are brought close to each other and on one vertical member 1 side of each scaffolding frame 4. When pulled to the building frames 4 and 4 for both scaffolds, the other vertical member 1 of each scaffold building frame 4 and the locking hook 7 locked to the horizontal member 2 near the vertical member 1 The gap Sb between them is about 65 mm. In this case as well, the scaffold plate 5 may cause a side slip, which is dangerous.
[0007]
Furthermore, as shown in FIG. 5, when the scaffold board 5 having a width Wa of the scaffold board body 6 of 500 mm is bridged over the scaffolding frame 4 having a dimension Hc of 600 mm between the vertical members 1 and 1, When the scaffolding plate 5 is pulled over to the two building frames 4 and 4 in a state where the scaffolding plate 5 is drawn to the one vertical member 1 side of each scaffolding building frame 4, the other vertical member 1 of each scaffolding building frame 4; A gap Sc between the locking hooks 7 locked to the cross member 2 at a position facing the vertical member 1 is about 35 mm.
[0008]
In view of the above problems, the present invention is between a vertical member of a scaffolding frame and a locking hook of a scaffolding plate locked to the horizontal member, or between adjacent locking hooks on the horizontal member. It is an object of the present invention to provide a spacer for preventing a skid of a scaffold plate that fills a gap in the longitudinal direction of the formed transverse member to prevent a skid of the scaffold plate.
[0009]
[Means for Solving the Problems]
The invention according to claim 1 is a framework scaffold in which the scaffolding plate 5 is bridged by engaging the locking hooks 7 at both ends of the scaffolding plate between the cross members 2 and 2 of the scaffolding frames 4 and 4. A spacer for preventing the skid of the scaffolding plate 5 between the vertical member 1 of the scaffold building frame 4 and the locking hook 7 locked to the horizontal member 2 or between the adjacent locking hooks 7, 7. The spacer body 11 is detachably fitted to the cross member 2 so as to fill a gap in the longitudinal direction of the cross member formed in the above.
[0010]
According to a second aspect of the present invention, in the spacer for preventing skidding of the scaffolding plate according to the first aspect, the spacer main body 11 is formed in a bowl shape.
[0011]
Claim 3 is a spacer for preventing skidding of the scaffolding plate according to claim 1 or 2, wherein the spacer body 11 is fitted to the cross member 2 of the scaffolding frame 4 at one end of the spacer body 11. The rotation stopper 9 is provided so as to engage with the outer peripheral surface of the longitudinal member 1 and prevent the spacer body 11 from rotating around the transverse member 2.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
FIGS. 1 and 2 show a state in which two scaffolding plates 5 having a width Wa of a scaffolding plate main body 6 of 500 mm are juxtaposed in parallel to scaffolding frames 4 and 4 having a dimension Ha between both vertical members 1 and 1 of 1219 mm. In this case, both scaffolding plates 5 and 5 are brought close to each other and drawn to one vertical member 1 side of each scaffolding building frame 4 in this case. When spanned over the frames 4, 4, the transverse member longitudinal direction between the other longitudinal member 1 of each scaffold building frame 4 and the engaging hook 7 engaged with the transverse member 2 at a position close to the longitudinal member 1 Since the gap Sa is about 125 mm as described above, as shown by the phantom line in FIG. 2, a skid prevention spacer is provided in the lateral member 2 between the vertical member 1 and the locking hook 7 forming the gap Sa. 10 is inserted.
[0013]
The side slip prevention spacer 10 is provided in the longitudinal direction of the transverse member between the longitudinal member 1 of the scaffolding frame 4 and the locking hook 7 of the scaffolding plate 5 that is secured to the transverse member 2 near the longitudinal member 1. The spacer body 11 is fitted to the cross member 2 so as to fill the gap Sa. The spacer body 11 is made of a synthetic resin such as vinyl chloride, polyethylene or polypropylene and has a substantially C-shaped cross section as shown in FIG. It is formed in a hollow shape in the shape of a bowl.
[0014]
As shown in FIG. 3, the hollow pacer main body 11 formed in a bowl shape having a substantially C-shaped cross section includes an inner peripheral wall portion 11a, an outer peripheral wall portion 11b, both end wall portions 11c and 11c, and these It is comprised by the space part 11d formed between wall part 11a, 11b, 11c, 11c. In this case, when the outer diameter D of the cross member 2 of the scaffold building frame 4 is, for example, 42.7 mm, the inner diameter N of the inner peripheral wall portion 11a is, for example, 44 mm, and the opening width H of the opening portion O is equal to that of the cross member 2. It is slightly narrower than the outer diameter D, for example, 39 mm, and the thickness t of each of the inner peripheral wall portion 11a and the outer peripheral wall portion 11b is 2 to 3 mm, and the space portion 11d between the inner peripheral wall portion 11a and the outer peripheral wall portion 11b. The thickness M is about 15 to 20 mm. Further, the length L of the spacer body 11 is slightly shorter than the length 125 mm of the gap Sa, for example, 120 mm because the gap Sa between the vertical member 1 of the scaffold building frame 4 and the locking hook 7 is 125 mm. You can do it. In this embodiment, the spacer body 11 is formed in a hollow shape, but may be formed in a solid shape. However, if it is formed in the hollow shape as in the embodiment, the volume of the skid prevention spacer 10 is increased, the function as the spacer 10 can be sufficiently exerted, and the weight is reduced, which is convenient for carrying and handling. .
[0015]
Further, as shown in FIG. 3A, an outer peripheral surface portion of the vertical member 1 is attached to one end portion of the spacer main body 11 in a state where the spacer main body 11 is fitted to the cross member 2 of the building frame 4 for scaffolding. An anti-rotation portion 9 is provided that engages with and prevents the spacer body from rotating around the cross member. The detent portion 9 is configured such that one end wall portion 11c of the spacer body 11 is a concave portion having an arc shape in plan view corresponding to the outer peripheral surface portion (convex portion) of the longitudinal member 1. Thus, by providing the anti-rotation part 9 at one end of the spacer main body 11, when the spacer main body 11 is fitted and attached to the cross member 2 of the scaffolding frame 4 in a horse riding state, the spacer main body 11 is vibrated. Therefore, the spacer 10 does not rotate around the cross member 2 to be in a downward posture, and the function of the spacer 10 for preventing the skid of the scaffold plate 5 can be sufficiently exhibited. The spacer body 11 can exert the function of preventing the skid of the scaffolding plate even when attached to the transverse member 2 in a downward posture. However, when the spacer body 11 is attached to the transverse member 2 in a horse riding state, the function is reliably and sufficiently exhibited. be able to.
[0016]
In using the skid prevention spacer 10 configured as described above, as shown in FIG. 3B, when the spacer body 11 is pushed into the cross member 2 from the position as indicated by a virtual line, At the time of pushing, the opening O is opened by elastic deformation, and as shown by the solid line in FIG. In this way, by inserting the spacer 10 into the cross member 2 between the vertical member 1 and the locking hook 7 forming the gap Sa, the gap Sa is filled, so that the operator works on the scaffold plate 5. Occasionally, the scaffolding plate 5 does not cause skidding, and work safety is ensured. At the time of removal, if the spacer main body 11 is pulled outward, the spacer main body 11 can be easily removed from the cross member 2 by elastic deformation of the spacer main body 11.
[0017]
In the embodiment shown in FIG. 1 and FIG. 2, the two scaffolding plates 5, 5 are brought close to each other and are attached to one scaffolding frame 4, 4 while being pulled toward one vertical member 1 side of each scaffolding building frame 4. As described above, the spacer 10 having the length L of 120 mm is fitted into the gap Sa having a length of about 125 mm formed between the other vertical member 1 and the cross member 2 near the vertical member 1 when handed over. However, as a method of other methods, although not shown, the scaffold plates 5 and 5 are brought close to each other and the vertical members 1 of the scaffold building frame 4 and the scaffold plates. 5 so that gaps of the same length can be formed between the hooks 7 on the outer end side, and the 125 mm gaps between the vertical members 1 and the hooks 7 respectively. Since the gap of half of Sa is formed, the one having half the length of the spacer 10 is inserted into the gap. It suffices to writing the eye.
[0018]
FIG. 4 shows scaffolding frames 4 and 4 having a dimension Hb of 900 mm between the longitudinal members 1 and 1, a scaffolding plate 5 having a width Wa of the scaffolding plate body 6 of 500 mm, and a scaffolding having a width Wb of the scaffolding plate body 6 of 240 mm. In this case, the two frames with the plate 5 are bridged in a state where they are arranged in parallel. In this case, both the scaffold plates 5 and 5 are brought close to each other and one vertical member 1 of each scaffold building frame 4 is shown. When pulled over to the scaffolding frames 4, 4 in the state of being pulled to the side, the other vertical member 1 of each scaffolding frame 4, and the latch that the horizontal member 2 is locked at a position close to this vertical member 1 Since a gap Sb of about 65 mm is formed between the hook 7 and the horizontal member 2 between the vertical member 1 and the locking hook 7 forming the gap Sb, as shown by the phantom line in FIG. The skid prevention spacer 20 is fitted.
[0019]
The side slip prevention spacer 20 is composed of a spacer body formed of a synthetic resin in a substantially C-shaped cylindrical body, like the spacer body 11 of the spacer 10 shown in FIG. Different from the main body 11. That is, the length of the spacer main body of the spacer 20 may be slightly shorter than the length 65 mm of the gap Sb shown in FIG. 5, for example, 60 mm. The method for attaching and removing the spacer 20 is the same as that for the spacer 10.
[0020]
FIG. 5 shows a case in which a scaffolding plate 5 having a width Wa of 500 mm is spanned over a scaffolding frame 4 having a dimension Hc of 600 mm between both vertical members 1 and 1, and in this case When the scaffolding plate 5 is drawn to one side of the vertical frame 1 of each scaffolding frame 4 and is spanned over the two scaffolding frames 4, 4, the other vertical member 1 of each scaffolding frame 4 is A gap Sc of about 35 mm is formed between the hook 1 and the hook 2 locked with the crosspiece 2 near the material 1, and if the gap is this level, there is little danger even if the scaffolding plate 5 slips. However, for safety, as shown by the phantom line in FIG. 4, a skid prevention spacer 30 is provided on the cross member 2 between the vertical member 1 and the locking hook 7 forming the gap Sc. Fit. The spacer 30 is also composed of a spacer main body similar to the spacer main bodies of the spacers 10 and 20, and has a length of about 30 mm.
[0021]
In the embodiment shown in FIGS. 1 to 5, the cross member longitudinal gap between the vertical member 1 of the scaffolding frame 4 and the locking hook 7 locked to the cross member 2 near the vertical member 1. The spacers 10, 20, and 30 are fitted into the Sa, Sb, and Sc to prevent the skidding of the scaffolding plate 5. However, when the two scaffolding plates 5 are bridged in a parallel state, A lock hook 7 on the outer end side is brought into contact with the vertical member 1 of the scaffolding frame 4, and a gap is formed between adjacent lock hooks 7, 7 on the center portion side of the cross member 2. A spacer may be fitted, and by doing so, it is possible to prevent the skid 5 from slipping.
[0022]
FIG. 6 shows another embodiment of the skid prevention spacer according to the present invention. The spacer 40 shown here has a spacer body 11 formed in a bowl shape with a U-shaped cross section, and this spacer body. The anti-rotation portion 9 provided at one end portion of the eleventh portion is formed of a substantially U-shaped concave portion in plan view such that the one end wall portion 11c of the spacer body 11 engages with the outer peripheral surface portion of the longitudinal member 1. Further, FIG. 7 shows a skid prevention spacer 50 according to still another embodiment. This spacer 50 is formed by forming the spacer main body 11 into a substantially Ω cross section, for example, by a metal plate having spring properties. By utilizing the spring property of the spacer main body 11, the spacer body 11 is detachably fitted to the cross member 2 of the scaffolding frame 4. An anti-rotation portion 9 is also provided at one end of the spacer body 11.
[0023]
【The invention's effect】
The invention according to claim 1 fills a gap in the longitudinal direction of the cross member formed between the vertical member of the building frame for scaffolding and the lock hook locked to the cross member, or between the adjacent lock hooks. The spacer is made of a spacer body that is fitted to a cross member, and by using this spacer, the gap is filled, so that when the operator works on the scaffold board, the scaffold board is No side slipping occurs, ensuring work safety. Moreover, since this spacer is freely detachable from the cross member, it can be easily attached and removed.
[0024]
If the spacer body is formed in a bowl shape as described in claim 2, it is easy to attach and remove the scaffolding building frame to the cross member, and the structure of the spacer body is simple and suitable for mass production. Can be provided.
[0025]
According to the third aspect of the present invention, when the spacer main body is mounted on the cross member of the scaffolding frame in a riding state by providing a detent portion at one end of the spacer main body, the spacer main body vibrates. Thus, it does not rotate around the cross member and assumes a downward posture, and the function as a spacer can be sufficiently exhibited.
[Brief description of the drawings]
FIG. 1 is a perspective view of a frame scaffold that is one example of use of the present invention.
FIG. 2 is a plan view of the frame scaffold shown in FIG.
3A is a perspective view showing an embodiment of a spacer according to the present invention, and FIG. 3B is an enlarged cross-sectional view of the spacer.
FIG. 4 is a plan view of a frame scaffold that is still another example of use of the spacer according to the present invention.
FIG. 5 is a plan view of a frame scaffold that is still another example of use of the spacer according to the present invention.
FIG. 6 is a perspective view showing another embodiment of the spacer according to the present invention.
FIG. 7 is a perspective view of still another embodiment of the spacer according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Vertical material of scaffolding frame 2 Horizontal material of scaffolding frame 3 Reinforcing material of scaffolding frame 4 Scaffolding frame 5 Scaffolding plate 6 Scaffolding plate body 7 Locking hook 9 Non-rotating portion 10 Side slip prevention spacer 11 Spacer body 20 Side-slip prevention spacer 30 Side-slip prevention spacer 40 Side-slip prevention spacer 50 Side-slip prevention spacer

Claims (3)

A spacer for preventing a side plate of a scaffolding board in a framed scaffold that is framed by spanning the scaffolding board by locking hooks at both ends of the scaffolding board between the transverse members of the scaffolding frame, and for the scaffolding frame Between the vertical member and the locking hook locked to the horizontal member or between the adjacent locking hooks. A spacer for preventing skidding of the scaffolding plate consisting of the spacer body. The spacer for preventing skidding of a scaffolding plate according to claim 1, wherein the spacer body is formed in a bowl shape. At one end of the spacer body, with this spacer body fitted to the transverse member of the scaffolding frame, it engages with the outer peripheral surface of the longitudinal member to prevent the spacer body from rotating around the transverse member. The spacer for preventing skidding of a scaffolding plate according to claim 1 or 2, wherein a stopper is provided.

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