JP2001020517A - Building scaffold set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a building scaffold set such that a scaffold plate can be singly held in a retreated position. SOLUTION: This building scaffold set has scaffold brackets 10 extended in the direction perpendicular to columns 90 and has a scaffold board 50 placed on arms 16. The scaffold board 50 can be rotated upward by means of mounting brackets 56, using as the center of rotation a shaft 34 formed on a first fixed pipe 28 located on the fixed part 14 of the scaffold bracket 10. A scaffold board fixing plate 35 is secured to a connecting pipe located on the fixed part 14. The scaffold board 50, when in a retreated position where it is rotated upward by 90 degrees, is vertically aligned with first and second circular through holes formed in the mounting bracket 56 and first and second elliptical through holes formed in the scaffold plate fixing plate 35. A fixing pin 31 is passed through the holes to hold the scaffold board 50 in the retreated position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building scaffold set used at a building site or the like.

[0002]

2. Description of the Related Art In a conventional building scaffold set,
The scaffolding bracket is composed of an arm and a vertical member extending downward from the arm, and a brace that supports the arm and the vertical member at an angle, and a wedge fixed to the base end of the arm includes It was designed to be inserted into the engagement frame and mounted. The scaffold plate mounted on this scaffold bracket had hook-shaped hooks provided at four corners, and the hooks were hooked on the arms of a pair of scaffold brackets. Since the wedge and the arm are fixed in this manner, the arm does not rotate in the scaffold bracket, and the scaffold plate is merely placed on such a scaffold bracket.

In such a conventional construction scaffold set, if the scaffolding plate temporarily hinders the work after being set up, the scaffolding plate is completely removed from the scaffolding bracket. In addition, the scaffolding bracket itself was completely removed from the column. This is because there is a risk that a worker moving the scaffold will be obstructed if these are mounted. The work of removing and re-installing in such a case is very complicated, and it is necessary to store the removed scaffold plate and scaffold bracket separately, and the construction period is prolonged due to poor workability associated with the scaffold plate and scaffold bracket. It was also the cause. For this reason, the applicant has made an improvement so that the scaffold plate and the scaffold bracket do not hinder the work, and filed a patent application on February 18, 1998 (Japanese Patent Application No. 10-54327). The present invention is a further improved invention of the patent application.

[0004]

According to the above-mentioned patent application, the scaffold plate rotates upward or downward about the mounting base of the scaffold bracket to retract, and the scaffold bracket also pivots horizontally to retract. Techniques are disclosed. That is, since both the scaffold plate and the scaffold bracket can be retracted, the projecting of the architectural scaffold set can be eliminated. As a result, when the architectural scaffold set temporarily interferes with the work, it can be evacuated so as not to disturb the work. The present invention is particularly an improvement in a method of fixing a scaffold plate when the scaffold plate is retracted upward. An object of the present invention is to provide an architectural scaffold set that can hold a scaffold plate alone at a retracted position.

[0005]

Means for Solving the Problems In order to achieve the above object, an invention according to claim 1 includes an arm extending in a direction orthogonal to a pillar of a scaffold, and an arm extending between the arm and the pillar. A pair of scaffolding brackets formed with supporting means interposed and supporting the same arm in a cantilever manner with respect to the same column, and mounted on the upper surfaces of the pair of arms of the two brackets, and A scaffolding plate which is hung by the hooking means and which rotates upward and retracts with the both hooking means as a fulcrum; The gist is to have According to the above configuration, the scaffold plate placed on the scaffold bracket can be rotated upward and retracted with the latching means as a fulcrum, and can be retracted. Then, the scaffold plate is non-rotatably held at the retracted position by the rotation preventing means. Further, in order to achieve the above object, the invention described in claim 2 is based on claim 1.
In addition to the configuration of the invention, the gist is that the arm of the scaffold bracket can be turned horizontally and retracted with the arm support portion as a base point. According to a third aspect of the present invention, in order to achieve the above object, in addition to the configuration of the first or second aspect, the hooking means of the scaffold plate is hooked to a support means of the bracket. The rotation preventing means engages the first engaging means formed on the locking means side, the second engaging means formed on the arm supporting part side, and the both engaging means. The gist is that the two engaging means are engaged by the connecting means at the retracted position of the scaffold plate. In order to achieve the above object, the invention according to claim 4 has, in addition to the configuration according to claim 3, a configuration in which both the engagement means are holes, the connection means is connection rods, and the scaffold plate has The gist of the invention is that the two holes can be arranged at a position where the connecting rod is inserted in the retracted state.

[0006]

According to the first aspect of the present invention, when the scaffold is temporarily unnecessary, the scaffold is pivoted upward with the hooking means as a fulcrum and retracted, thereby allowing the scaffold to move vertically. Since a space can be secured, it is not necessary to remove the scaffold plate from the support and lower the scaffold from the scaffold, so that the work can be performed smoothly and the construction period can be shortened. According to the second aspect of the present invention, in addition to the effect of the first aspect, the scaffold plate is rotated upward with the locking means as a fulcrum and retracted, and at the same time, the scaffold bracket is also pivoted toward the support column. The space can be secured in the vertical direction. According to the third aspect of the present invention, in addition to the effects of the first or second aspect, the first engaging means and the second engaging means are engaged by the connecting means, so that the scaffold is firmly held. The plate can be held in the retracted position. According to the invention described in claim 4, in addition to the effect of the invention described in claim 3, since the first engaging means and the second engaging means are holes, a connecting rod as connecting means is inserted into these. The scaffold plate can be easily and reliably held at the retracted position only by the above.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a construction scaffold set according to an embodiment of the present invention will be described. First, a scaffold bracket (hereinafter, simply referred to as “bracket”) that forms part of the present invention will be described. In this embodiment, the “distal direction” refers to the front direction in FIG. 5 and the “proximal direction” refers to the back direction in FIG. As shown in FIG. 5, the bracket 10 includes an arm portion 12 and a fixing portion 14 as an arm support portion. The arm portion 12 includes an arm 16, a staff 18,
Vertical member 20, flange 22, first connection fitting 24, second
And the connecting metal fitting 26 of FIG. Arm 16 formed in a cylindrical shape
The tip of a cylindrical brace 18 is also fixed near the tip of. The brace 18 has a lower portion of the arm 16 extending obliquely toward the base end. A cylindrical vertical member 20 is fixed to the arm 16 near the support and between the arm 16 and the brace 18 so as to connect the two. A flange 22 is fixed to the end face on the distal end side of the arm 16. A first connection fitting 24 is fixed to an end face on the base end side of the arm 16. First
Is connected to the upper fixing plate 25a arranged in parallel.
And a lower fixing plate 25c, and a connecting plate 25b connecting the fixing plates 25a and 25c, and is formed as a channel-shaped frame as a whole. Upper fixed plate 25a
Are formed with small holes 29, and fixing pins 31 are suspended from suspension wires 33 passed through the small holes 29. A second connection fitting 26 is fixed to an end face on the base end side of the brace 18. The second connection fitting 26 includes an upper fixed plate 27a and a lower fixed plate 27c, which are arranged in parallel, and both fixed plates 2a.
It is composed of a connecting plate 27b for connecting 7a and 27c, and is formed as a channel-like frame as a whole.

The fixing portion 14 includes first and second fixing pipes 28 and 30, a connecting pipe 32, a shaft 34, a scaffold plate fixing plate 35, a wedge 36, a lid 38, and a V-shaped fitting 40.
The tip of the first fixed pipe 28 is connected to the first connection fitting 24.
Between the upper and lower fixing plates 25a, 25c. First
An insertion hole is formed in the fixed pipe 28 and the upper and lower fixing plates 25a and 25c, and a bolt 42 is inserted into the insertion hole. Bolt 42 is fixed to upper and lower fixing plate 27 by nut 43.
a, 27c. The tip of the second fixing pipe 30 is connected to the upper and lower fixing plates 27 of the second connection fitting 26.
a, 27c. Second fixed pipe 30
An insertion hole is formed in the upper and lower fixing plates 27a and 27c in the vertical direction, and a bolt 42 is inserted into the insertion hole. Bolt 42 is fixed to upper and lower fixing plates 27a, 27 by nut 43.
c. As a result, the first connection fitting 24 is rotatable with respect to the first fixed pipe 28 and the second connection fitting 26 is rotatable with respect to the second fixed pipe 30 in the horizontal direction. The whole is rotatable with respect to the fixed portion 14 and can be retracted. First fixed pipe 2
8 and the second fixed pipe 30 are connected by a connecting pipe 32.

A through hole 44 is formed in the first fixed pipe 28, and a shaft 34 is inserted into and fixed to the through hole 44. Both ends of a shaft 34 formed in a columnar cross section protrude in the left-right direction of the fixed pipe 28, and both ends of the protruding portion have a retaining portion 3 having a diameter larger than that of the through hole 42.
4a are formed. A scaffold plate fixing plate 35 is fixed to the connecting pipe 32 near the first fixing pipe 28.
The scaffolding plate fixing plate 35 is a plate that is disposed orthogonally to the vertically extending connecting pipe 32. A pair of first and second elliptical through holes 45 and 46 having an elliptical shape are formed in the scaffold plate fixing plate 35 at symmetric positions with respect to the connecting pipe 32. Both the elliptical through holes 45 and 46 are formed larger than first and second circular through holes 60 and 61 described later. A wedge 36 is fixed to the proximal end face of the first fixed pipe 28. A lid 38 is fixed to the proximal end surface of the second fixed pipe 30. The lid 38 has a V-shaped bracket 4
0 is fixed.

Next, the scaffold will be described. As shown in FIG. 1, the scaffold 50 is a rectangular frame 5.
2 is a plate body having a net 54 fixed thereto. At both ends on one side (upper side in FIG. 1) of the four corners of the frame 52, mounting fittings 56 as first latching means are fixed. FIG.
As shown in (a) and (b), the mounting bracket 56 is
, A front plate 57b, and a second side plate 57c, and are formed in a substantially U-shaped plate as a whole. Front plate 57
A cutout groove 58 is formed in b. The notch groove 58 is formed in a substantially inverted L-shape, and a tip portion of the L-shape is formed in an arc shape. As shown in FIG. 3B, the width P of the notch groove 58 and the diameter Q of the distal end are formed slightly larger than the diameter of the shaft 34. First and second circular holes 60 and 61 as first and second engagement means are formed in both side plates 57a and 57c, respectively. Both circular through holes 60, 6
The diameter D of the pin 1 is formed slightly larger than the diameter of the fixing pin 31 so that the fixing pin 31 can be inserted. Frame 5
Hooks 62 as second hooking means are fixed to both end portions on the other side of the four corners 2. As shown in FIG. 2, the hook 62 is formed in a hook shape, and rivets 64, 6
6, a lock plate 68 is mounted so as to be movable obliquely up and down.

Next, a construction scaffold set according to an embodiment of the present invention will be described. The minimum unit of the architectural scaffold set is constituted by the pair of brackets 10 and the scaffold plate 50 supported thereby. As shown in FIG. 5, the bracket 10 is mounted on a support column 90. The wedge 36 is fixed by being driven into a support fitting 92 of a support 90. The V-shaped bracket 40 is in contact with the peripheral surface of the column 90. As shown in FIG. 7, the mounting bracket 56 of the scaffold 50 is hooked on the shaft 34, and the hook 62 is hooked on the end of the arm 16. At the tip of the shaft 34, a retaining portion 34a having a large diameter is provided, so that the mounting bracket 56 is not easily detached from the shaft 34, and the hook 62 is attached to the arm by the lock plate 68 of the hook 62. 16 does not easily come off. FIG. 7 shows only one state of the scaffold plate 50, but the bracket 10 and the support column 90 are installed in a pair, and the scaffold plate 50 is supported by both brackets 10. The mounting bracket 56 at the other end is
Similarly, the hook 6 is hooked on the shaft 34,
2 is likewise hooked on the end of the arm 16. As described above, in a state where the scaffold plate 50 is mounted on the both brackets 10, the arms 12 of the both brackets 10 are fixed by the scaffold plate 50 so that the arms 12 cannot rotate. A jack base and a base plate (not shown) are attached to the lower end of the support column 90.

Next, the operation of the architectural scaffold set of this embodiment will be described. First, the lock plate 78 of the hook 62 is moved obliquely upward, and the bracket 1 of the hook 62 is moved.
The lock on the arm 16 is released, and the scaffold 50 is rotated upward by about 90 degrees about the shaft 34 as shown in FIGS. (This state is referred to as a retracted position of the scaffold plate 50.) At this time, since the cutout groove 68 of the mounting bracket 56 is formed in a substantially inverted L-shape, the shaft 34 is in the L position.
It is located at the tip of the letter (the Q in FIG. 3),
The mounting bracket 56 does not come off the shaft 34 even in a state where the mounting bracket 56 is pivoted upward. In this state, as shown in FIG. 11, the first and second circular through holes 60 and 61 formed in both side plates 57a and 57c of the mounting bracket 56 are fixed to the connecting pipe 32 of the bracket 10 by the scaffold plate. It faces the first elliptical through hole 45 of the fixing plate 35 and has three through holes 4
5, 60 and 61 are arranged in a straight line in the vertical direction.
Then, the operator picks up the fixing pin 31 suspended by the suspension wire 33 and inserts it from above, that is, from the second circular hole 61 side of the second side plate 57c as shown in FIG. The inserted fixing pin 31 is inserted into each of the through holes 45, 60, 61.
Is engaged with the edge. This fixing pin 31 and each through hole 45,
The engagement of the scaffolds 50 and 60 with the edges causes the scaffold plate 50 to be held in the retracted position so as not to rotate. Although the fixing pin 31 has a diameter smaller than the diameter of each through-hole 45, 46, 60, 61, if the hanging wire 33 is included, each of the through-holes 4
Since the diameter of the fixing pin 31 is larger than the diameters of 5, 46, 60 and 61, the base of the fixing pin 31 does not fall on the second circular through hole 61. Next, as shown in FIG. 9, the arm portion 12 of the bracket 10 is rotated so as to be bent toward the scaffold plate 50 (upward in FIG. 6). (This state is referred to as a retracted position of the arm portion 12.) However, it is not necessary to bend the arm portion 12 if it is not in the way.

With this configuration, the architectural scaffold set of the present embodiment has the following effects. (1) When the scaffold plate 50 is temporarily unnecessary, the scaffold plate 50 is turned upward by about 90 degrees around the shaft 34 of the bracket 10 as the center of rotation, and is held at the retracted position by the fixing pin 31. By bending the arm portion 12 of the bracket 10, the portion that protrudes toward the passage is eliminated, and a space for the operator to move can be secured. Absent. Therefore, the work can be performed smoothly, and the construction period can be shortened. (2) When the scaffold plate 50 is turned upward by about 90 degrees around the shaft 34 as a center of rotation in order to evacuate, the first and second positions of the scaffold plate 50 side (mounting metal fittings 56) just at the retreat position.
Are opposed to the first and second elliptical through holes 45, 46 on the bracket 10 side (the scaffold plate fixing plate 3), and are in a straight line. It can be held simply by inserting the fixing pin 31 there. That is, no troublesome operation is required as fixing means of the scaffold plate 50 at the retracted position, and quick work is possible. (3) When a space enough to bend the arm 12 of the bracket 10 is not required, it can be held at the retreat position only by the scaffolding plate 50, and work efficiency can be improved. (4) Since the arm portion 12 of the bracket 10 cannot be bent by the scaffold plate 50 by mounting the scaffold plate 50, it is not necessary to provide a means for preventing the arm portion 12 from being bent. As a result, the weight of the bracket 10 can be reduced.

The present invention is not limited to the above embodiment, but can be embodied with the following modifications. The arm 12 of the bracket 10 according to the above-described embodiment cannot be bent by the scaffold plate 50 when the scaffold plate 50 is placed thereon. Therefore, no means for preventing the arm portion 12 from being bent is provided. However, the position fixing means of the arm portion 12 may be provided in consideration of the case where the scaffold plate 50 is held long at the retracted position. In the above embodiment, the arm portion 12 of the bracket 10 can be bent, but may be used for a conventional bracket in which the arm portion is not bent. The means for fixing the scaffold plate 50 at the retracted position may be other than the relationship between the fixing pin 31 and the through holes 45, 46, 60, 61 as described above. For example, a hook member may be provided on the scaffold plate 50 side, and the hook may be hooked on the bracket 10 or the hook hooking pin on the column 90 side.

The technical concept of the present invention that can be grasped from the above embodiment will be described below. (1) The diameter of the hole as the second engaging means formed on the side of the arm support is larger than the diameter of the first engaging means formed on the side of the engaging means. The scaffold set for construction according to claim 4, characterized in that:

[Brief description of the drawings]

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

FIG. 2 is a front view of the scaffold according to the same embodiment.

FIG. 3A is a perspective view of a mounting bracket for the scaffold plate according to the embodiment. (B) Front view of the mounting hardware of the scaffold plate.

FIG. 4 is a side view showing a state where the scaffold plate according to the embodiment is turned upward with the shaft as a fulcrum when the scaffold plate is mounted on the scaffold bracket.

FIG. 5 is a perspective view of the scaffold bracket according to the embodiment of the present invention.

FIG. 6 is a plan view of the scaffold bracket according to the same embodiment.

FIG. 7 is a view showing the architectural scaffold set of the same embodiment, and is a plan view in a state where a scaffold bracket is attached to a support and a scaffold plate is attached to the scaffold bracket.

FIG. 8 is a view showing the architectural scaffold set according to the embodiment, wherein a hook of the scaffold plate is removed from the scaffold bracket;
The top view of the state which rotated the scaffold board upward.

FIG. 9 is a view showing the architectural scaffold set of the embodiment, wherein a hook of the scaffold plate is removed from the scaffold bracket;
The top view which shows the state which rotated the scaffold board upward, rotated the arm part of the bracket for scaffolds, and fixed with the fixing pin.

FIG. 10 is an enlarged front view in the state of FIG. 9;

FIG. 11 is an explanatory view for explaining that a fixing pin is inserted into first and second circular through holes and a second elliptical through hole arranged on a straight line.

[Explanation of symbols]

Reference Signs List 10: scaffold bracket, 12: arm, 14: fixing part as supporting means, 33: rotation preventing means, fixing pin as connecting means, 45: rotation preventing means, first ellipse as engaging means Through-hole, 46: second elliptical through-hole as rotation preventing means, engaging means, 50: scaffold plate, 56: mounting bracket, 60
... First circular through holes as rotation preventing means and engaging means, 61
... Second circular through hole as a rotation preventing means and an engaging means, 90
… Props.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Yoshimasa Inozuka 2-2-22-2 Nishiki, Naka-ku, Nagoya-shi, Aichi Name Furuya Sekisui Heim Construction Co., Ltd. 154 Castle in the hole below Shinawa

Claims (4)

[Claims] An arm extending in a direction perpendicular to a pillar of a scaffold, and a pair of supporting means interposed between the arm and the pillar to support the arm in a cantilever manner with respect to the pillar are formed. A scaffolding bracket, which is mounted on the upper surface of the pair of arms of the two brackets and is hooked to each bracket by a hooking means, and pivots upward with the both hooking means as a fulcrum. A scaffold plate for evacuation, and a rotation preventing means for holding the scaffold plate so as not to rotate at a retracted position of the scaffold plate. 2. The scaffolding set for construction according to claim 2, wherein said scaffold bracket is capable of retreating by rotating said arm horizontally in said support means as a base point. 3. The locking means of the scaffold plate is locked to a support means of the bracket, and the rotation preventing means is provided with a first engaging means formed on the locking means side. It is constituted by a second engaging means formed on the arm support portion side and a connecting means for engaging the both engaging means, and the two engaging means are connected by the same connecting means at the retracted position of the scaffold plate. The architectural scaffold set according to claim 1 or 2, wherein the scaffold set is engaged. 4. The two engaging means are holes, and the connecting means is a connecting rod, wherein the two holes are arranged at positions where the connecting rod can be inserted when the scaffold plate is in a retracted state. The architectural scaffold set according to claim 3, wherein