JP2016029230A - Wall tie support member and scaffold structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wall tie support member and scaffold structure in each of which the attaching position of one end at a scaffold side, of a wall tie can be desirably adjusted in a vertical direction and a horizontal direction.SOLUTION: A wall tie support member 6 is provided for supporting a wall tie 7 which is provided in a scaffold arranged in a standing condition along an exterior all of a building 9 and which is used for fixing the scaffold to the building 9. The wall tie support member 6 includes: a body part 61 which is formed in a pipe shape extending in a vertical direction, and to which one end at the scaffold side, of the wall tie is attached at a desired position in the vertical direction; a clamp part 62 which is provided in the lower end of the body part 61 and is fixed to a first horizontal member 3a bridged between neighboring column supports 2a of the scaffold; and a hook part 63 which is provided in the upper end of the body part 61 and is hooked to a second horizontal member 4b provided above the first horizontal member 3a.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a wall connecting support member and a scaffold structure provided in a scaffold standing along an outer wall of a building.

  Conventionally, at the time of architectural renovation or demolition of a building such as a house, a scaffold is erected along the outer wall of the building and various operations are performed. Such a scaffold is configured by providing a plurality of support columns spaced apart from each other by a predetermined interval and assembling horizontal materials such as handrails and intermediate rails, and treads between adjacent support columns.

  Usually, in order to prevent collapse, deformation, or the like, a scaffold is used to fix the scaffold to a building. The wall tether is provided with a clamp for fixing to a scaffolding column or a horizontal member at one end, and a bolt with a male screw formed at the other end. When connecting the scaffold to the building, the clamp on one end side is fixed to the support column or horizontal member of the scaffold, and the bolt on the other end is screwed to the nut member provided on the building side. (See, for example, Patent Document 1 and Patent Document 2). In addition, as a wall connection, there is also a type in which a compression member is pressed against an outer wall surface of a building instead of a bolt on the other end side and fixed.

Japanese Patent Application Laid-Open No. 07-207924 JP-A-10-266554

  However, in the conventional scaffold, one end on the scaffold side of the wall joint is fixed to the support column or horizontal member of the scaffold. For this reason, the position at which one end of the wall joint is attached is determined by the position at which the scaffolding pillar or horizontal member is provided.Therefore, depending on the position at which one end of the wall joint is attached, the wall joint may be used for the movement or work of the operator. There is a risk of getting in the way.

  The present invention has been made in view of the above-described problems, and is a wall-linking support member and a scaffold that can freely adjust the position at which one end of the wall-linking scaffold is attached in the vertical direction and the horizontal direction. The purpose is to provide a structure.

  In order to achieve the above object, the wall connection support member according to claim 1 is provided on a scaffold standing along an outer wall of a building, and supports the wall connection for fixing the scaffold to the building. A wall connecting support member, which is formed in a pipe shape extending in the vertical direction, and is provided at a lower end of the main body unit, and a main body part to which one end of the wall connecting side on the scaffolding side is attached at an arbitrary position in the vertical direction, A clamp portion fixed to a first horizontal member spanned between adjacent struts of the scaffold, and a hook provided on an upper end of the main body portion and hooked on a second horizontal member provided above the first horizontal member And a section.

  In the wall connecting support member according to claim 2, in the state where the hook portion is hooked on the second horizontal member and the clamp portion is fixed to the first horizontal member, the shaft center of the main body portion is It is characterized by being orthogonal to the axis of the first horizontal member and the axis of the second horizontal member.

  The wall connecting support member according to claim 3 is characterized in that the length of the main body is adjustable in the vertical direction.

  In the wall connecting support member according to claim 4, the main body portion is provided with the hook portion at the upper end, the upper pipe member to which the nut portion is detachably attached, and the clamp portion at the lower end. And a lower pipe member to which a bolt portion that is screwed in a vertically movable manner with respect to the nut portion is detachably attached, and the bolt portion rotates up and down by rotating about the axis. The length is adjustable in the direction.

  The scaffold structure according to claim 5 is a scaffold structure provided with the wall connecting support member according to any one of claims 1 to 4, wherein the hook portion is disposed at an arbitrary position in the horizontal direction of the second horizontal member. And the clamp portion is fixed to the first horizontal member.

  According to the wall connecting support member according to claim 1, the scaffold is adjacent to the lower end of the main body portion that is formed in a pipe shape extending in the vertical direction, and one end on the scaffold side of the wall connecting is attached to an arbitrary position in the vertical direction. Since the clamp part fixed to the 1st horizontal material spanned between the support | pillars to perform is provided, and the hook part hooked by the 2nd horizontal material provided above the 1st horizontal material is provided in the upper end of a main-body part. The attachment position of one end on the scaffold side of the wall connection can be freely adjusted not only in the vertical direction but also in the horizontal direction. Further, in the wall connecting support member, it is only necessary to hook the hook portion to the second horizontal member provided above the first horizontal member, so that it is not necessary to raise another worker to the upper floor, and the hook portion After being hooked on the second horizontal member, the clamp can be fixed to the first horizontal member, so that one worker can easily perform the construction.

  According to the wall connecting support member according to claim 2, the shaft center of the main body portion includes the first horizontal member in a state where the hook portion is hooked on the second horizontal member and the clamp portion is fixed to the first horizontal member. Since the main body portion does not protrude outwardly, it can be provided on the scaffold without increasing the space for providing the scaffold. . Further, since the main body portion does not protrude inward, it is possible to prevent the operator from moving or obstructing the work.

  According to the wall connecting support member according to claim 3, since the length of the main body part can be adjusted in the vertical direction, the size and shape of the scaffolding differ depending on the manufacturer, etc. Even when the distance to the two horizontal members is different, it can be used appropriately.

  According to the wall connecting support member according to claim 4, the main body is screwed into the upper pipe member in which the nut portion is detachably attached to the inside so as to be movable forward and backward with respect to the nut portion. The bolt part has a lower pipe member to which the bolt part is detachably attached, and the length of the bolt part can be adjusted in the vertical direction by rotating around the axis. be able to.

  According to the scaffold structure of Claim 5, it was provided in the upper end of the main-body part by which the end of the side of a wall connection is attached to the arbitrary positions of the 2nd horizontal member at the horizontal direction at arbitrary positions of the up-down direction. The hook part is hooked and the clamp part provided at the lower end of the main body part is fixed to the first horizontal member, so the attachment position of the one end on the scaffolding side of the wall joint can be freely set not only in the vertical direction but also in the horizontal direction Can be adjusted.

It is a schematic front view which shows an example of the scaffold structure concerning this invention. It is the sectional view on the AA line in FIG. It is a schematic side view which shows an example of the wall connection support member which concerns on this invention. It is a schematic front view which shows an example of the wall connection support member which concerns on this invention. It is an exploded view which shows an example of the wall connection support member which concerns on this invention. It is a schematic plane sectional view which shows an example of the state which attached the wall connection to the wall connection support member. It is a schematic sectional side view which shows another example of the state which attached the wall connection to the wall connection support member which concerns on this invention.

  Hereinafter, an embodiment of a scaffold structure according to the present invention will be described with reference to the drawings. The scaffold structure 1 according to the present invention is erected along the outer wall of the building 9 in order to perform various operations such as architectural renovation and dismantling of the building 9, as shown in FIGS. The handrail 3, the middle rail 4, the tread plate 5, and the like are assembled to a plurality of support posts 2 arranged at a predetermined interval. Further, in the scaffold structure 1, a wall 7 is connected to a handrail (first horizontal member) 3 a spanned between adjacent struts 2 a and a middle rail (second horizontal member) 4 b provided above (upper floor) of the handrail 3 a. A wall connecting support member 6 to which a clamp 71 on one end of the scaffold is attached is provided.

  The column 2a is an outer column arranged at a position far from the building 9, and as shown in FIG. 2, arranged near the building 9 so that the inner column 2b faces the column 2a. Has been. Each of the columns 2a and 2b is provided with four piece metal fittings 21 on the outer periphery at predetermined intervals along the vertical direction. The predetermined distance, which is the interval at which the piece metal fittings 21 are provided, is set to 450 mm or 475 mm, for example. Although not shown in detail, the top metal fitting 21 is formed in a substantially U-shape in plan view, and the tips of both side pieces are fixed to the outer peripheral surfaces of the columns 2a and 2b by welding, and in the vertical direction on the inner side. A through-hole penetrating through is provided.

  Wedge pieces 31 and 41 are provided at both ends of the horizontal members such as the handrail 3 and the middle rail 4 disposed between the adjacent columns 2a. When the wedge pieces 31 and 41 are driven into the through holes of the corresponding piece 21 of the column 2a, the handrail 3 and the intermediate rail 4 are assembled in a state of being horizontally bridged between the adjacent columns 2a. It is done.

  Although not shown in detail, the tread board 5 includes, for example, a rectangular frame member and a floor member made of a mesh member having a number of meshes supported by the frame member. In addition, hooks 51 are provided at both ends of the tread plate 5, and the hooks 51 are engaged with the brackets 8 that are supported by being supported by the frame bracket 21 of the outer column 2a and the frame bracket 21 of the inner column 2b. As a result, the tread board 5 is assembled horizontally. Further, the width dimension of the tread board 5 is designed to be shorter than the distance from the outer support column 2a to the inner support column 2b so as to fit between the outer support column 2a and the inner support column 2b.

  In the scaffold structure 1 according to the present embodiment, the middle rail 4a is horizontally spanned at a position above the predetermined distance of the tread plate 5a (the interval at which the top bracket 21 of the column 2 is provided), and further, the middle rail 4a is predetermined. A handrail 3a is stretched horizontally at a position above the distance. In addition, a tread 5b in the upper floor portion is bridged horizontally above twice a predetermined distance of the handrail 3a (for example, 900 mm or 950 mm). Further, above the step board 5b, the middle rail 4b is horizontally stretched at a position above a predetermined distance in the same manner as the lower floor, and the handrail 3b is horizontally disposed at a position above the middle rail 4b by a predetermined distance. It is laid over. A wall connecting support member 6 is attached to an intermediate rail 4b provided on the upper floor side of the handrail 3a and the handrail 3a.

  The wall connecting support member 6 is for attaching a clamp 71 at one end of the wall connecting 7 for fixing the scaffold to the building 9, and as shown in FIGS. The formed main body portion 61, a clamp portion 62 provided at the lower end of the main body portion 61, and a hook portion 63 provided at the upper end of the main body portion 61 are provided.

  The main body 61 is composed of an upper pipe member 64 and a lower pipe member 65 each formed in a pipe shape. The upper pipe member 64 has a hook portion 63 fixed to the upper end thereof by welding, and a nut portion 66 is detachably attached inside. The outer diameter of the upper pipe member 64 is formed to be substantially the same as the outer diameter of the support column 2 so that one end of the wall joint 7 is attached.

  As shown in FIGS. 3 to 5, the nut portion 66 has a cylindrical portion 66 a formed in a cylindrical shape whose outer diameter is smaller than the inner diameter of the upper pipe member 64 so that the nut portion 66 can be inserted into the upper pipe member 64. A female screw is formed on the inner periphery, and a nut 66b fixed to the lower end of the cylindrical portion 66a by welding is provided. As shown in FIG. 5, a bolt hole 66c into which the bolt 10 can be inserted is formed on the upper end side of the cylindrical portion 66a. The upper pipe member 64 is also formed with a bolt hole 64a through which the bolt 10 can be inserted so as to correspond to the bolt hole 66c of the cylindrical portion 66a, and the cylindrical portion 66a is inserted into the upper pipe member 64. Then, with the bolt hole 66c and the bolt hole 64a aligned, the bolt 10 is inserted into the bolt hole 66c and the bolt hole 64a, and the tip end side of the bolt 10 is fastened with the nut 11, thereby The nut portion 66 can be detachably attached inside.

  The lower pipe member 65 has a clamp portion 62 fixed to the lower end thereof by welding, and a bolt portion 67 is detachably attached inside. The inner diameter of the lower pipe member 65 is slightly larger than the outer diameter of the upper pipe member 64 so that the lower end side of the upper pipe member 64 can be inserted therein.

  As shown in FIGS. 3 to 5, the bolt portion 67 has a male shaft formed on the outer periphery and is provided at a lower end of the screw shaft 67 a and a screw shaft 67 a that is screwed to the nut 66 b so as to advance and retract in the vertical direction. And a head 67b. As shown in FIG. 5, the head 67b is formed with a bolt hole 67c through which the bolt 10 can be inserted. Also, the lower pipe member 65 is formed with a bolt hole 65a through which the bolt 10 can be inserted so as to correspond to the bolt hole 67c of the head 67a, and the bolt portion 67 is inserted into the lower pipe member 65. Then, with the bolt hole 67c and the bolt hole 65a of the head 67b aligned, the bolt 10 is inserted into the bolt hole 67c and the bolt hole 65a, and the tip end side of the bolt 10 is fastened with the nut 11 to The bolt part 67 can be detachably attached to the inside of the pipe member 65.

  Further, a retaining member 67d is secured to the outer periphery of the screw shaft 67a so that the screw portion 67a and the nut 66b are not released from the bolt portion 67. In this way, when fixing the retainer 67d to the outer periphery of the screw shaft 67a, for example, the screw shaft 67 is previously screwed onto the nut 66b, and the screwed state between the screw shaft 67a and the nut 66b is not released. As described above, the retainer 67d is secured to the screw shaft 67a by welding. Then, the nut 66b and the lower end of the cylindrical portion 66a are fixed by welding.

  By attaching the nut portion 66 and the bolt portion 67 configured as described above to the upper pipe member 64 and the lower pipe member 65, respectively, the upper pipe member 64 and the lower pipe member 65 are connected to the nut portion 66 and the lower pipe member 65, respectively. It is connected via a bolt part 67. Therefore, the main body 61 can adjust the length in the vertical direction by rotating the lower pipe member 65 and rotating the bolt part 67 attached to the lower pipe member 65 around the axis.

  The hook portion 63 is fixed to the upper end of the upper pipe member 64 by welding, and is formed in a substantially inverted U shape so that it can be hooked on a horizontal member such as the middle rail 4b. As shown in FIGS. 3 to 5, the hook portion 63 includes a connecting portion 63 a whose lower end side is welded to the outer peripheral surface on the upper end side of the upper pipe member 64, and a connecting portion 63 a so as to be orthogonal to the connecting portion 63 a. A top plate portion 63b whose base end side is welded to the upper end and a rear piece portion 63c whose upper end is welded to the distal end side of the top plate portion 63b are provided. The connecting portion 63a, the top plate portion 63b, and the rear piece portion 63c are each formed in a substantially U-shape in which rib pieces are formed on both sides in the width direction in order to improve the strength. Further, the center position of the distance from the connecting portion 63a to the rear piece portion 63c is designed to be located substantially on the extension line of the axis O of the upper pipe member 64 and the lower pipe member 65. Therefore, as shown in FIG. 2, the axis O of the upper pipe member 64 and the lower pipe member 65 and the axis of the middle rail 4 b are orthogonal to each other when the hook portion 63 is hooked on the middle rail 4 b. Yes.

  The clamp part 62 is fixed to a horizontal member such as the handrail 3a, and is fixed to the lower end of the lower pipe member 65 by welding. As shown in FIGS. 3 to 5, the clamp portion 62 is welded to the lower end of the lower pipe member 65, and the proximal end side of the clamp body portion 62 a is rotated via support shafts 62 b and 62 c, respectively. A pair of clamp claws 62d and 62e that are pivotally supported is provided, and an adjustment bolt 62f that is pivotally supported on the distal end side of the clamp claws 62d. Although not shown in detail in the distal end side of the clamp claw 62e, a notch portion into which the adjustment bolt 62f can be inserted is formed. The adjustment bolt 62f is inserted into the notch portion, and a nut is attached to the adjustment bolt 62f. By screwing and rotating, the distance between the pair of clamp claws 62d and 62e can be adjusted, and the horizontal member such as the handrail 3a can be held and fixed.

  As shown in FIGS. 2 and 6, a conventionally known wall joint 7 as shown in FIGS. 2 and 6 is provided on the body 61 of the wall joint support member 6 in which the hook 63 is hooked on the intermediate rail 4b and the clamp 62 is fixed to the handrail 3a. It is attached and the scaffolding and the building 9 are fixed. This wall tether 7 has a structure that can be expanded and contracted, and a clamp 71 for fixing to the main body 61 is provided at one end, and a nut member 12 provided on the building 9 side is screwed to the tip on the other end side. A bolt portion 72 having a male screw to be attached is provided. In addition, the wall tether 7 whose one end is attached to the main body 61 of the wall tether support member 6 is not limited to the one provided with the bolt part 72 at the tip as shown in FIG. Instead of the bolt, a wall link 7a that presses and fixes the compression member 72 to the outer wall surface of the building 9 may be used.

  Hereinafter, an example of a method for attaching the wall connecting support member 6 of the present invention will be described with reference to the drawings. First, as shown in FIGS. 1 and 2, the worker hooks the hook portion 63 of the wall connecting support member 6 at a predetermined position in the horizontal direction on the upper floor middle rail 4b while standing on the tread 5a. At this time, the hook part 63 is hooked so that the connecting part 63a is located outside the scaffold structure 1. Thereby, even when the wall connecting support member 6 rotates around the middle rail 4b in the clockwise direction in FIG. 2, the connecting portion 63a is connected to the upper pipe member 64, so that the hook portion 63 is connected to the middle rail 4b. Does not come off easily. In addition, in the case of rotating counterclockwise in FIG. 2, since it contacts the upper floor tread 5b, it can be prevented from rotating more than a predetermined angle, so the wall connecting support member 6 is centered on the middle rail 4b. By rotating in the direction, it is possible to prevent the hook portion 63 from coming off from the middle rail 4b.

  Next, the operator adjusts the length so that the clamp part 62 comes to the position of the handrail 3a by rotating the lower pipe member 65 around the axis. At this time, the pair of clamp claws 62d and 62e that are pivotally supported by the clamp main body 62a of the clamp 62 are left open.

  When the clamp part 62 comes to the position of the handrail 3a, the operator inserts the adjustment bolt 62f pivotally supported by the clamp claw 62d into the cutout part of the clamp claw 62e and adjusts the nut. By screwing and rotating the bolt 62f, the distance between the pair of clamp claws 62d and 62e is adjusted and fixed to the handrail 3a. At this time, the wall connecting support member 6 is attached so that the axis of the main body 61 is orthogonal to the axis of the handrail 3a and the axis of the intermediate rail 4b as shown in FIG. The main body 61 does not overhang, and there is no need to increase the space for providing a scaffold. Further, since the main body 61 does not overhang the scaffold, it does not hinder the movement of the worker or the work.

  Thereafter, in order to fix the scaffold and the building 9, the operator fixes the clamp 71 at one end of the wall joint at a predetermined position in the vertical direction of the body 61 of the wall joint support member 6, and the bolt on the other end side. The part 62 is fixed to the building 9. At this time, for example, as shown in FIG. 1, one end of the wall joint 7 is connected to the main body 61 of the wall joint support member 6 so that the wall joint 7 is positioned at a height slightly below the upper floor tread 5b. If it is fixed to, it is possible to prevent the movement of the worker and the work from being obstructed.

  As described above, in the scaffold structure 1 provided with the wall connecting support member 6, the attachment position of one end of the wall connecting 7 on the scaffold side can be freely adjusted in the vertical direction and the horizontal direction. Further, since the wall connecting support member 6 only needs to hook the hook portion 63 on the upper floor side rail 4b, there is no need to raise another worker to the upper floor, and the hook portion 63 is attached to the middle rail 4b. After being hooked, the clamp 62 is fixed to the handrail 3a, so that one worker can easily perform the mounting operation. The position where the wall connecting support member 6 is attached is not limited to the present embodiment, and can be attached to another horizontal member.

  Further, the embodiment of the present invention is not limited to the above-described embodiment, and can be changed as appropriate without departing from the scope of the idea of the present invention.

1 Scaffolding structure 2 Prop 3a Handrail (first horizontal member)
4b Middle rail (second horizontal member)
6 Wall connection support member 61 Body portion 62 Clamp portion 63 Hook portion 64 Upper pipe member 65 Lower pipe member 66 Nut portion 67 Bolt portion 7 Wall connection 9 Building

Claims (5)

A wall tether support member provided on a scaffold standing along an outer wall of a building and supporting a wall tether for fixing the scaffold to the building,
A main body part that is formed in a pipe shape extending in the vertical direction and to which one end on the scaffold side of the wall connection is attached at an arbitrary position in the vertical direction;
A clamp portion provided at a lower end of the main body portion and fixed to a first horizontal member spanned between adjacent struts of the scaffold;
A wall connecting support member, comprising: a hook portion provided at an upper end of the main body portion and hooked on a second horizontal member provided above the first horizontal member.   The shaft center of the main body portion includes the shaft center of the first horizontal member and the second horizontal member when the hook portion is hooked on the second horizontal member and the clamp portion is fixed to the first horizontal member. The wall-linking support member according to claim 1, wherein the wall-linking support member is orthogonal to an axis of the material.   The wall connecting support member according to claim 1, wherein the length of the main body is adjustable in the vertical direction.   The main body portion is provided with the hook portion at the upper end and an upper pipe member to which the nut portion is detachably attached, and the clamp portion is provided at the lower end, and moves forward and backward in the vertical direction with respect to the nut portion. A lower pipe member to which a bolt part to be freely screwed is detachably attached, and the length of the bolt part can be adjusted in the vertical direction by rotating around the axis. The wall connecting support member according to claim 3. A scaffold structure provided with the wall connecting support member according to any one of claims 1 to 4,
The scaffold structure, wherein the hook portion is hooked at an arbitrary position in the horizontal direction of the second horizontal member, and the clamp portion is fixed to the first horizontal member.

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