JP3934931B2 - Mobile scaffold and mobile scaffold installation structure - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a moving scaffold and an installation structure of the moving scaffold.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, in construction and the like in a house room, a moving scaffold having wheels at the lower end of the leg portion is used. FIG. 10 shows an installation state of the moving scaffold in the finishing work of the ceiling surface in the room. In this installation example, a large number of mobile scaffolds 100 are installed and connected on the floor so that the operator's movable area can be widened.
[0003]
[Problems to be solved by the invention]
However, if a large number of mobile scaffolds are used, the work time is required for the transportation, assembly, and loading. On the other hand, in the work of assembling the outer wall of the house, the outer wall and the frame are fixed and the drainer is attached from the indoor side, but unlike the ceiling work described above, a lot of moving scaffolds are placed near the outer wall. However, it is considered efficient to use one moving scaffold and work sequentially while moving along the outer wall. However, when working in such a manner, the moving scaffold can be smoothly and stably moved along the outer wall as well as the falling of the moving scaffold and the fall of the worker from the outer wall. It is important that it is possible to easily form a movable state, or to easily release the state and load the moving scaffold.
[0004]
In view of the above circumstances, the present invention can prevent the falling of the moving scaffold and the worker from falling off the outer wall, and forms a state in which the moving scaffold can be moved smoothly and stably along the wall. It is an object of the present invention to provide a moving scaffold and an installation structure for the moving scaffold that can be easily released and the moving scaffold is put in place by releasing the state.
[0005]
[Means for Solving the Problems]
In order to solve the above-described problem, the moving scaffold according to the present invention is a moving scaffold having wheels at the lower end of the leg portion, and is guided by the guide member while maintaining a connected state with the horizontally mounted guide member. A connecting and moving mechanism that moves in a moving manner is attached.
[0006]
If it is said structure, since a movement scaffold will maintain the connection state with the guide member laid horizontally, the fall of a movement scaffold can be prevented. In addition, since the guide member can move while being maintained in this connected state, the moving operation can be performed smoothly and stably.
[0007]
The connecting and moving mechanism portion includes an upper roller and a lower roller, and a support member that supports each roller. Each support member can be separated from each other, and in the state of being close to each other, the upper and lower rollers are spaced apart from the guide member. It is good to be comprised so that it can be made to position and this position state can be fixed. According to this, it is possible to easily form a state in which the moving scaffold can be connected to the horizontally mounted guide member and can be moved smoothly and stably, and it is easy to release the state and load the moving scaffold. You can do it.
[0008]
Each support member is provided so as to be rotatable about a common shaft, and may be configured to be able to swing integrally around the shaft in a state where both support members are fixed in proximity to each other. . According to this, even if there is a slight level difference (unevenness) or the like in the guide member, this can be absorbed and smooth movement of the moving scaffold can be realized.
[0009]
The upper and lower rollers are preferably separated from each other at their end portions. According to this, even if the support piece member or the like is present on the side surface side of the guide member, it is possible to avoid this and to realize the smooth movement of the connecting and moving mechanism portion.
[0010]
The suspension member is attached to a support member that supports the upper roller so that the suspension member is located outside the guide member, and a locking portion that restricts the outward movement of the suspension member is formed on the support member that supports the lower roller. It is good to be. According to this, a strong force in the indoor direction is applied to the moving scaffold, and even if the upper and lower rollers try to come off from the guide member, the drooping member hits the guide member. become.
[0011]
The drooping member is preferably provided so as to be allowed to rotate in a direction horizontal to the extending direction of the guide member. According to this, even if there is a support piece member or the like on the side surface side of the guide member, the hanging member rotates so as to get over it. Smooth movement can be realized.
[0012]
If the fall prevention member which is located above the scaffolding floor and prevents the worker from falling is arranged, the operator's fall prevention function is enhanced.
[0013]
Further, the moving scaffold installation structure of the present invention is a moving scaffold installation structure using any one of the above-described moving scaffolds, and a guide member is temporarily installed horizontally on a pillar of a building, and connected to the guide member. A mechanism part is connected, It is characterized by the above-mentioned. The guide member is composed of an inner tube and an outer tube, and is preferably extendable and configured to be set to an arbitrary length and fixed. Further, at least one end of the two rail members connected to each other may be locked to the beam, and the mounting area of the moving scaffold may be formed in the non-installed portion of the floor board by the rail member. Further, it is preferable that a locking mechanism for preventing the rail member from being lifted apart from the beam is provided.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the moving scaffold and the installation structure of the moving scaffold according to the embodiment of the present invention will be described with reference to FIGS.
[0015]
In FIG. 1, after the installation work of the pillar 1, the beam 2 and the floor member 3 (see FIG. 4) in the construction of the house with the ramen structure, the assembly of the outer wall 4 on the first floor side is finished and the second floor side It shows the state of starting to install the outer wall. In the outer wall assembling work, the worker A works while standing on the scaffolding floor 501 of the moving scaffold 5. Although one moving scaffold 5 is provided in the figure, two or more moving scaffolds can be provided and can be increased or decreased depending on the number of workers. Two pipe members (guide members) 7 are horizontally suspended between the columns 1 at a predetermined interval in the vertical direction. The moving scaffold 5 is attached with a connecting and moving mechanism 6 that moves while being guided by the pipe member 7 while maintaining the connection state with the pipe member 7 that is horizontally mounted. In the figure, four connection movement mechanism sections 6 are provided, but six connection movement mechanism sections 6 may be provided. In addition, the moving scaffold 5 is provided with a fall prevention member 505 that is positioned above the scaffold floor 501 and prevents the worker A from falling.
[0016]
As shown in FIG. 2, a caster 502 is provided at the lower end of the leg portion of the moving scaffold 5, and the caster 502 can be used to move. Further, as shown in FIG. 3, a fixing grounding portion 503 is provided at the lower end of the leg portion of the movable scaffold 5 so as to be freely inserted and withdrawn. By fixing the fixing grounding portion 503 downward and tightening a bolt 504, The moving scaffold 5 can be fixed. In addition, the mobile scaffold 5 is configured to be folded.
[0017]
FIG. 4A is a perspective view showing the second floor portion of the house in the middle of the construction, and FIG. 4B is a side view showing the arrangement state of the rail-shaped jumper plate 8. In a place where the floor member 3 is not installed, a rail-shaped transition board 8 is disposed, and the moving scaffold 5 is disposed by the rail-shaped transition board 8. When the moving scaffold 5 is placed on the rail-shaped crossing plate 8, the connecting and moving mechanism 6 is connected to the pipe member 7 (7A) located on the near side in FIG. The rail-shaped crossover plate 8 is formed by using two rails 8a having a substantially concave cross section and connecting them together by a connecting member 8b provided on one end side. The connecting member 8 b includes an inverted L-shaped angle member and a spacer member corresponding to the height of the floor member 3. As shown in FIGS. 5 (a) and 5 (b), a locking projection 8 c is formed on the lower surface of the horizontal piece of the angle member, and this locking projection 8 c is formed on the upper plate portion of the H-shaped steel as the beam 2. By engaging with the hole 2a, the horizontal movement of the rail member 8 can be restricted. Further, the vertical piece portion of the angle member is formed with a screw hole in the horizontal direction, and by screwing the screw 8d into the screw hole, the vertical movement can be restricted, and the horizontal movement restriction can be prevented from coming off. Realized. Further, a stopper 8e that is in contact with the caster 502 of the moving scaffold 5 is fixed to the front end side of each rail 8a.
[0018]
As shown in FIGS. 6A, 6B, and 6C, the pipe member 7 includes an inner tube 7a and an outer tube 7b. Holes are formed in the inner tube 7a and the outer tube 7b at lateral positions at predetermined intervals, and nuts 7c are fixed at positions where holes are formed in the outer tube 7b. By setting the pipe member 7 to a desired length, aligning the hole positions of the inner tube 7a and the outer tube 7b, and screwing the screw 7d into the nut 7c, the pipe member 7 can be fixed to the desired length. Moreover, the end surface side of the outer tube 7b is formed in a taper shape, and a change in the level difference between the inner tube 7a and the outer tube 7b is reduced.
[0019]
FIG. 7A is a perspective view showing a state in which the connecting and moving mechanism portion 6 attached to the moving scaffold 5 is connected to the pipe member 7, and FIG. 7B shows the connecting and moving mechanism portion 6. It is an enlarged view. The connecting and moving mechanism 6 includes an upper support frame member 61 that supports the upper roller 61a and a lower support frame member 62 that supports the lower roller 62a. Both ends of the horizontal rotation shafts of the rollers 61a and 62a form screw portions, which protrude from the side surface portions of the support frame members 61 and 62, and nuts are screwed onto the screw portions of the protruding portions. It is like that. Each of the rollers 61 a and 62 a has a shape that is narrowed toward the center side corresponding to the curved surface of the pipe member 7. However, a gap is set between the ends of the rollers 61a and 62a in the proximity state.
[0020]
Support pieces 61b and 62b are respectively fixed to the inner side surfaces of the support frame members 61 and 62 by welding or the like. Both the support frame members 61 and 62 are connected to the connecting portion 63 by a rotation shaft (bolt) 67 inserted through a first hole formed in the support pieces 61b and 62b. The connecting portion 63 is fixed to the moving scaffold 5 side, and connects the support frame members 61 and 62 to the moving scaffold 5. As shown in FIG. 8A, the support frame members 61 and 62 can be separated from each other by rotating around the rotation shaft 67 and close to each other as shown in FIG. 8B. In the state, the pipe member 7 is positioned between the upper and lower rollers 61a and 61b, and this position state can be fixed. A second hole is formed in each of the support pieces 61b and 62b, and the proximity state can be fixed by attaching the butterfly bolt 68 with the second hole aligned. In this proximity fixed state, both the support frame members 61 and 62 can swing integrally around the rotation shaft 67 and can move smoothly even if the pipe member 7 has a step or unevenness. Become. Further, by removing the butterfly bolt 68, the support frame members 61 and 62 can be separated, and the connecting and moving mechanism portion 6 (moving scaffold 5) can be easily detached from the pipe member 7.
[0021]
A bolt 66 is screwed to the outer side surface of the upper support frame member 61, and the upper end portion of the hanging member 65 is loosely supported by the bolt 66. And the latching | locking part 64 which regulates the outward movement of the said drooping member 65 is being fixed to the outer side surface in the lower side support frame member 62. As shown in FIG. Thereby, a strong force in the indoor direction is applied to the moving scaffold 5, and even if the rollers 61 a and 61 b are about to come off from the pipe member 7, the drooping member 65 hits the pipe member 7, so that the moving scaffold 5 is surely toppled over. Will be prevented. Since the locking portion 64 does not hinder the rotation of the drooping member 65 around the bolt 66, the drooping member 65 is allowed to rotate in a horizontal direction with respect to the extending direction of the pipe member 7. .
[0022]
A horizontal piece of the connecting member 9 (see FIG. 1) is fixed to the outer side surface of the pipe member 7 by welding or the like. The connecting member 9 is fixed to the column 1 (or a temporary column) with a bolt or the like, whereby the horizontal fixing state of the pipe member 7 is obtained. As described above, since the gap is set between the end portions of the rollers 61a and 62a in the close state (see FIG. 7B), the connecting member in the movement of the connecting and moving mechanism portion 6 is set. The horizontal piece at 9 does not become an obstacle. When the connecting and moving mechanism 6 reaches the position of the horizontal piece in the connecting member 9, as shown in FIGS. 9 (a), 9 (b) and 9 (c), the drooping member 65 is rotated to Since it rides over the horizontal piece, the drooping member 65 does not become an obstacle in the movement of the connecting moving mechanism 6.
[0023]
【The invention's effect】
As described above, according to the present invention, the moving scaffold can be prevented from falling over and the worker can be prevented from falling from the outer wall, and the moving scaffold can be moved smoothly and stably along the wall. Can be easily formed, or the state can be released and the moving scaffold can be easily loaded.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a state where an outer wall assembling work is about to be started using a moving scaffold according to an embodiment of the present invention.
2 is an enlarged perspective view showing the moving scaffold in FIG. 1; FIG.
3 is an enlarged perspective view showing a caster portion of the moving scaffold shown in FIG. 1. FIG.
FIG. 4A is a perspective view showing a second floor portion of a house in the middle of construction, and FIG. 4B is a side view showing an arrangement state of rail-like jumpers.
FIG. 5 (a) is a perspective view showing a state where a rail-shaped jumper is arranged on a beam, and FIG. 5 (b) is a side view showing a connection state of the rail-like jumper and the beam. It is.
6A is a perspective view of a pipe member, FIG. 6B is a cross-sectional view showing a fitting portion between an inner tube and an outer tube of the pipe member, and FIG. It is sectional drawing which showed a mode that a screw | thread was mounted | worn with the nut provided in the outer tube | pipe.
FIG. 7A is a perspective view showing a state in which the connecting and moving mechanism portion mounted on the moving scaffold is connected to the pipe member, and FIG. 7B shows the connecting and moving mechanism portion. It is an enlarged view.
FIG. 8A is a perspective view showing a separated state of the support frame member, and FIG. 8B is a perspective view showing a proximity state of the support frame member.
FIGS. 9A, 9B and 9C are perspective views showing a state in which the connecting and moving mechanism part goes over the horizontal piece welded to the side surface of the pipe member.
FIG. 10 is a perspective view showing an installation structure of a conventional mobile scaffold.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Column 2 Beam 3 Floor member 4 Outer wall 5 Moving scaffold 6 Linking movement mechanism part 7 Pipe member 8 Rail-like crossing board

Claims (10)

  A moving scaffold having wheels at the lower end of the leg part, and a connected moving mechanism part that is guided and moved by the guide member while maintaining a connected state with the horizontally mounted guide member is attached, and the connected movement The mechanism section includes an upper roller and a lower roller, and a support member that supports each roller. Each support member can be separated from each other, and the upper and lower rollers are positioned at an interval corresponding to the guide member in a state of being close to each other. And the moving scaffold characterized by being comprised so that this position state can be fixed.   2. The moving scaffold according to claim 1, wherein each support member is provided so as to be rotatable about a common shaft, and swings around the shaft integrally with both support members fixed in proximity to each other. A moving scaffold characterized in that it can be constructed.   The moving scaffold according to claim 1 or 2, wherein the upper and lower rollers are separated from each other at their end portions.   4. The moving scaffold according to claim 1, wherein the hanging member is attached to a supporting member that supports the upper roller so that the hanging member is positioned outside the guide member, and the supporting member supports the lower roller. The moving scaffold is characterized in that a locking portion for restricting the outward movement of the hanging member is formed.   5. The moving scaffold according to claim 4, wherein the hanging member is provided so as to be allowed to rotate in a direction horizontal to the extending direction of the guide member.   The moving scaffold according to any one of claims 1 to 5, wherein a fall prevention member is disposed above the scaffold floor to prevent the operator from falling. Construction.   A moving scaffold installation structure using the movable scaffold according to any one of claims 1 to 6, wherein a guide member is temporarily installed between pillars of a building, and a connecting movement mechanism portion is connected to the guide member. The installation structure of the mobile scaffold characterized by that.   The installation structure of the moving scaffold according to claim 7, wherein the guide member includes an inner tube and an outer tube, and is configured to be extendable and set to an arbitrary length so as to be fixed. Installation structure of mobile scaffolding.   The moving scaffold installation structure according to claim 7, wherein one end of two mutually connected rail members is locked to a beam, and a mounting region of the moving scaffold is formed at a non-installation position of the floor board by the rail member. An installation structure of a mobile scaffold characterized by   The moving scaffold installation structure according to claim 9, wherein a locking mechanism is provided to prevent the rail member from being lifted apart from the beam.

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