JP2012154045A - Scaffold fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a scaffold fixture which allows a steady and stable scaffold to be installed without damaging a building.SOLUTION: A foothold fixture 11 according to the present invention comprises a bearing part 2 having a contact surface 21 to come contact with the surface of a building structure in an approximately parallel direction, a fixing part 3 for fixing to a scaffold 8 which is installed at a prescribed distance from the building structure, a bent arm part 4 of which one end is fixed to the bearing part 2 and another end is fixed to the fixing part 3. One pair of the foot hold fixtures 11 hold a projecting part 91 of the building structure with the contact surfaces 21, so that the scaffold 8 is fixed to an outer periphery of the building structure with the fixing part 3.

Description

  The present invention relates to a scaffold attachment for attaching a scaffold installed on the outer periphery of a building to the building.

  Conventionally, scaffolds for working are arranged on the outer periphery of a building during maintenance of the outer wall and exterior of the completed building and renovation of the building. The scaffold can be installed in such a manner that the scaffold is less likely to be shaken by being fixed to the building by an attachment structure as shown in Patent Document 1 or FIG.

Japanese Patent Application Laid-Open No. 2007-126829

  However, in the method of Patent Document 1 described above, in order to make a hole in the outer wall of the building, after removing the scaffold, it is necessary to fill the hole aesthetically and hide that the hole has been made. Further, in the mounting structure shown in FIG. 10, one end (key-shaped portion 821) of the rod-shaped body 82 passed from the support column 81 of the scaffold 8 toward the building is brought into contact with one surface side of the outer wall 91. A clamp (clamping tool) 83 is disposed on the other surface side of the outer wall 91. The clamp 83 is crimped and held on the rod-shaped body 82, and the scaffold 8 is attached to the building by the clamp 83 and the key-shaped portion 821 of the rod-shaped body 82 by tightening the clamp 83. In the method shown in FIG. 10, when a headboard 92 or the like is installed at the upper end portion of the outer wall, it is difficult to adjust the clamp 83 for fixing the scaffold 8 in a stable manner, and the headboard 92 or the like may be damaged. There is.

  This invention is made | formed in view of the said subject, and makes it the subject which should be solved to provide the scaffold fixture which can install the stable scaffold which is hard to shake, without damaging a building.

The structural feature of the invention according to claim 1 for solving the above-mentioned problem is that the bearing portion has a contact surface that contacts substantially parallel to the surface of the building;
A fixing portion for fixing to a scaffold installed at a predetermined distance from the building;
One end is fixedly connected to the support part, and the other end has an arm part connected to the fixed part,
In one pair, the projecting portion of the building is sandwiched between the contact surfaces, and the scaffold is fixed to the outer periphery of the building with the fixing portion.

  A structural feature of the invention according to claim 2 is that, in claim 1, the abutment surface abuts against the headboard of the protrusion.

  A structural feature of the invention according to claim 3 is that, in claim 1 or 2, the support portion is fixed at substantially the same position with the protrusion interposed therebetween.

  A structural feature of the invention according to claim 4 is that, in claims 1 to 3, the length of the arm portion can be adjusted in accordance with the protruding portion.

  Further, the structural feature of the invention according to claim 5 is that, according to claims 1 to 4, the structure is located between the contact surface of the support portion and the surface of the building, and has a larger area than the contact surface. The flat enlarged contact surface has an auxiliary contact body that contacts the surface.

  In the invention which concerns on Claim 1, a scaffold is fixed to a building by pinching | interposing the protrusion part of a building with the contact surface of two scaffold attachments, and fixing each scaffold attachment to a scaffold. Since the building is sandwiched between the two contact surfaces, there is no damage such as making a hole in the building. In addition, since the projecting portion of the building is sandwiched between the contact surfaces and fixed to the scaffold by the fixing portion, the scaffold is fixed to the building. Therefore, the scaffold is less likely to shake and can be stably installed.

  In the invention which concerns on Claim 2, by avoiding a headboard and making a contact surface contact | abut to a building, damage to a building can be avoided and a scaffold can be installed stably.

  In the invention which concerns on Claim 3, the more stable scaffold can be installed by making the contact surface which pinches | interposes a protrusion part into the same position.

  In the invention which concerns on Claim 4, since the length of an arm part can be adjusted, it becomes easy to attach a scaffold attachment tool to the location which can match the shape of a protrusion part and avoid damage to a building.

  In the invention which concerns on Claim 5, the pressure from the contact surface applied to the surface of a building is contacted by interposing an auxiliary contact body between the contact surface of a support part and the surface of a building. Since it is added by the enlarged contact surface having a larger area than the surface, it is dispersed. Dispersing the pressure on the surface of the building reduces the pressure per unit and reduces the burden on the building. And since a scaffold attachment tool can be attached to a building with a wide area, a scaffold can be more stably fixed to a building.

It is explanatory drawing which shows the structure of the scaffold fixture 11 of this Embodiment 1. FIG. It is explanatory drawing which shows the shape of the support part 2 of the scaffold fixture 11 of this Embodiment 1. FIG. It is explanatory drawing which shows an example which has attached the scaffold fixture 11 of this Embodiment 1. FIG. It is explanatory drawing which shows an example which has attached the scaffold fixture 11 of this Embodiment 1. FIG. It is explanatory drawing which shows the structure of the scaffold fixture 11 of this Embodiment 1. FIG. It is explanatory drawing which shows the partial structure of the scaffold fixture 12 of this Embodiment 2. FIG. It is explanatory drawing which shows an example which has attached the scaffold fixture 12 of this Embodiment 2. FIG. It is explanatory drawing which shows an example which has attached the scaffold fixture 13 of this Embodiment 3. FIG. It is explanatory drawing which shows the partial structure of the scaffold fixture 13 of this Embodiment 3. It is explanatory drawing which shows the conventional structure which attaches a scaffold to a building.

  A representative embodiment of the present invention will be described with reference to FIGS. The scaffold attachment according to the present embodiment is used to attach a scaffold installed on the outer periphery of a building to the building.

(Embodiment 1)
As shown in FIGS. 1 and 2, the scaffold attachment 11 of Embodiment 1 includes a support portion 2, a fixing portion 3, and an arm portion 4.

  The support portion 2 has a flat surface on the opposite side to which one end of an arm portion 4 to be described later is attached, and has a contact surface 21 parallel to the outer wall (projecting portion) 91 of the building. The support portion 2 has a chamfered square shape. The shape of the support portion 2 is not limited to a quadrangle, and any shape such as a circle, an ellipse, or a rectangle can be used as long as the abutment surface 21 can be abutted against the outer wall 91. good. Moreover, the thickness of the support part 2 is also an appropriate thickness, and the rigidity of the material to be used can be considered.

  The fixing portion 3 includes a pair of sandwiching pieces 31 and 32, a support shaft 33, a bolt 34, and a nut 35, and the other end of the arm portion 4 described later and the sandwiching piece 31 are integrally coupled. To do. One end of each of the sandwiching pieces 31 and 32 is pivotally attached by a support shaft 33, and sandwiches a bar-like member of the scaffold with the support shaft 33 as a fulcrum. The head of the bolt 34 is pivotally attached to the end of the sandwiching piece 31, and the nut 35 is screwed into the bolt 34. The fixing portion 3 is fixed by fastening the rod-shaped member of the scaffolding with the holding pieces 31 and 32 by locking the end of the bolt 34 to the recess 36 at the end of the holding piece 32 and fastening the nut 35.

  The arm portion 4 has an arm fixing portion 41 and an arm extension portion 42, and has an L shape in which the arm fixing portion 41 and the arm extension portion 42 are integrally formed at a substantially right angle. The arm fixing portion 41 protrudes from the surface 22 on the back side of the abutting surface 21 of the support portion 2 at a substantially right angle, and the arm extending portion 42 is substantially parallel to the abutting surface 21 (outer wall 91). It bends at a substantially right angle from and extends. The length of the arm fixing portion 41 is such a length that the protrusion of the outer wall 91 and the headboard 92 do not come in contact with the outer wall 91 in the right angle direction.

  Next, the usage method of the scaffold fixture 11 of this Embodiment 1 is demonstrated. 3 and 4 are diagrams schematically showing a part of the building and the scaffolding. First, the scaffold 8 spans a plurality of long struts (for example, cylindrical struts) 81 standing at a predetermined distance from the outer peripheral side of the building and the struts 81 along the horizontal direction. A plurality of treads (not shown) and a plurality of horizontal rails (not shown) spanned horizontally between the columns 81 are assembled. The tread board is arranged in the vertical direction at a position where the worker can work at a necessary place, and the horizontal rail is also arranged in the vertical direction at a position where the worker can use the handrail. Further, a long horizontal member (bar-shaped body) 82 that is extended from the support column 81 of the scaffold 8 toward the open end of the outer wall 91 protruding like a veranda of a building is fastened and fixed to the support column 81 by a clamp 84. . A known member can be used for the clamp 84 as long as it can fix the rod-shaped body.

  In the scaffold attachment 11 of the first embodiment, the abutment surface 21 of the support portion 2 of the separate scaffold attachment 11 is respectively provided on the inner wall surface 93 and the outer wall surface 94 of the outer wall 91 protruding like a veranda of a building. Abut. The abutting surface 21 is disposed so that the protruding outer wall 91 is sandwiched between the two abutting surfaces 21 at a location (height) that does not contact the headboard 92 attached to the veranda or the upper end of the roof. Therefore, the length of the arm extension portion 42 of the arm portion 4 is desirably a length that can be avoided in a direction substantially parallel to the outer wall 91 so that the abutment surface 21 does not come into contact with the protrusion of the outer wall 91 or the headboard 92. Finally, each fixing part 3 is fixed to the transverse member 82. Since the scaffold attachment 11 sandwiches the outer wall 91 of the building in a pair and is fixed to the scaffold 8 by the fixing portion 4, the scaffold 8 is fixed to the building.

  The contact surface 21 does not necessarily have to be at the same position (height) with the outer wall 91 interposed therebetween. As shown in FIG. 4, the outer wall 91 can be sandwiched by using the scaffold attachment 11 having a different length of the arm extension 41 according to the shape of the outer wall 91 to which the scaffold attachment 11 is attached.

  Further, as shown in FIG. 5, the scaffold attachment 11 allows the length of the arm extension 41 to be adjusted, so that the length according to the shape of the outer wall 91 is selected at the site where the scaffold 8 is assembled. can do. Alternatively, as shown in FIG. 1, it is possible to fix the length of the arm extension 41 and use a plurality of scaffold attachments 11 of different lengths.

(Function and effect)
According to the scaffold fixture 11 of the first embodiment, the building 8 is sandwiched between the two contact surfaces 21, so that the scaffold 8 can be fixed to the building without opening a hole in the outer wall 91. Then, the outer wall 91 of the building is sandwiched between the contact surfaces 21 and the scaffold fixture 11 is fixed to the scaffold 8 by the fixing portion 3, so that the scaffold 8 is fixed to the building. Can be installed.

  Further, by adjusting (selecting) the length of the arm extension 42, the abutment surface 21 is brought into contact with the building while avoiding the head 92 and the like, so that damage to the building can be avoided.

(Embodiment 2)
The scaffold fixture 12 of the second embodiment has basically the same configuration and operational effects as the scaffold fixture 11 of the first embodiment. Below, it demonstrates focusing on a different structure and an effect.

  As shown in FIGS. 6 and 7, the scaffold attachment 12 of the second embodiment has an auxiliary contact body 5 held by the support portion 2. The auxiliary contact body 5 is disposed between the contact surface 21 of the support portion 2 and the outer wall 91. The auxiliary contact body 5 shown in FIG. 6 has a square shape that is slightly larger than the support portion 2, and the auxiliary contact body 5 shown in FIG. 7 has a rectangular shape. The auxiliary contact body 5 has an enlarged contact surface 51 having a larger area than the contact surface 21 of the support portion 2, and the enlarged contact surface 51 contacts the surface of the outer wall 91. The back side of the enlarged contact surface 51 that contacts the contact surface 21 has a holding portion 52 that holds the support portion 2. The holding portion 52 employs a configuration having a recess 521 into which the support portion 2 is fitted as shown in FIG. 6 and a claw-like locking portion 522 at a location opposite to the side surface of the recess 521. The shape which can slide-insert the support part 2 from one side of a longitudinal direction as shown by can be employ | adopted.

  Since the enlarged contact surface 51 has a larger area than the contact surface 21 of the support portion 2, the auxiliary contact body 5 is more stable than the case where the scaffold attachment 12 is fixed to the outer wall 91 with only the contact surface 21. And can be fixed. Moreover, since the pressure per unit area becomes small with respect to the outer wall 91 surface, the burden on the outer wall 91 is reduced. As the material of the auxiliary contact body 5, the same metal as that of a general scaffold member can be used. In addition, by adopting a plastic material, the degree of adhesion to the outer wall surface can be improved and the burden on the outer wall can be reduced.

(Embodiment 3)
The scaffold fixture 13 of the third embodiment has basically the same configuration and operational effects as the scaffold fixture 11 of the first embodiment. Below, it demonstrates focusing on a different structure and an effect.

  As shown in FIGS. 8 and 9, in the scaffold attachment 13 of Embodiment 3, the arm portion 4 includes an arm extension portion 42 and an arm rotation portion 43, and the arm extension portion 42, the arm rotation portion 43, and the like. Has an L shape integrally formed at a substantially right angle. One end of the arm extension portion 42 is fixed to the arm portion 42, and protrudes from the transverse member 2 of the scaffold 8 at a substantially right angle. One end of the arm rotation portion 43 is pivotally supported (engaged) with the support portion 2 so that the angle can be freely changed with respect to the back side surface 22 of the support portion 2. As shown in FIG. 9, one end of the arm rotation portion 43 has a protrusion 431 that protrudes in parallel with the back side surface 22 of the support portion 2. The support portion 2 protrudes from the back side surface 22 and is formed with a shaft support portion 23 in which a hole 231 into which the protrusion portion 431 is inserted is formed. That is, the support part 2 and the arm rotation part 43 are not necessarily fixed at a substantially right angle position. The engagement between the support portion 2 and the arm portion 4 is not limited to that shown in FIG. 9, and may be any as long as the angle between the support portion 2 and the arm portion 4 can be freely changed. Therefore, the support part 2 and the arm part 4 can use what is called a commercially available jack. In addition, the shape of the arm part 4 may not be L-shaped but may be I-shaped.

  As shown in FIG. 8, the scaffold fixture 13 according to the third embodiment has the support portion 2 when the inner wall surface 93 and the outer wall surface 95 of the outer wall 91 to be sandwiched are not in a parallel relationship and one of them is inclined. And the arm rotation part 43 are adjusted, and the contact surface 21 of the support part 2 can contact the outer wall surface 95. For the outer wall 91 in FIG. 8, the scaffold fixture 11 of the first embodiment is used on the inner wall surface 93 side, and the scaffold fixture 13 is used on the outer wall surface 95 side. The scaffold attachment 13 can be used for both wall surfaces, and the auxiliary contact body 5 of the scaffold attachment 12 of Embodiment 2 can be installed between the wall surface and the contact surface 21.

  According to the scaffold fixture 13 of the third embodiment, the abutment surface 21 of the support portion 2 can be brought into contact with the inclined outer wall 91 surface and can be fixed to the scaffold 8 by the fixing portion 3. Without being limited, the scaffold 8 can be fixed to the building.

(Other embodiments)
The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above embodiment. Although the fixing | fixed part 3 is integrally formed in the end of the arm extension part 42 of the arm part 4, the fastener of the type which can fix | tighten the two rod-shaped bodies by one fixing | fixed part 3 separately can be used. . When the fixing part 3 is not fixed to the arm extension part 42, the fixing part 3 can be fixed anywhere on the arm extension part 42, so that the length of the arm extension part 42 is not adjusted and the appropriate part such as the outer wall 91 is placed. The contact surface 21 can be contacted.

  Moreover, the support part 2 can use the member which the existing scaffold comprises. The column is attached with a member having a plate-like portion having a flat ground surface below so that the column can be stably erected. By diverting this member to the support portion 2, it is possible to eliminate the complexity of handling many types of members without purchasing new members, and to smoothly assemble the scaffolding.

11, 12, 13 ... scaffolding fixtures,
2 ... bearing part, 21 ... contact surface, 22 ... back side surface, 23 ... shaft support part,
3 ... fixed part 31,32 ... nipping piece 33 ... support shaft 34 ... bolt
35 ... nut, 36 ... recess,
4 ... arm part, 41 ... arm fixing part, 42 ... arm extension part, 43 ... arm rotating part,
5 ... auxiliary contact body, 51 ... enlarged contact surface, 52 ... holding part,
8 ... scaffolding, 81 ... support, 82 ... transverse member (rod-like body),
83, 84 ... clamps,
91 ... Outer wall (projecting part), 92 ... Kasagi, 93 ... Inner wall surface,
94, 95 ... outer wall surface.

Claims (5)

A bearing portion having an abutting surface that abuts substantially parallel to the surface of the building;
A fixing portion for fixing to a scaffold installed at a predetermined distance from the building;
One end is connected to the support part, and the other end has an arm part connected to the fixed part,
A pair of scaffolding fixtures, wherein a pair of projecting portions of the building are sandwiched between the contact surfaces, and the scaffold is fixed to the outer periphery of the building by the fixing portion.   The scaffold attachment according to claim 1, wherein the abutting surface abuts so as not to contact the headboard of the protruding portion.   The scaffold attachment according to claim 1 or 2, wherein the support portion is fixed at substantially the same position with the protruding portion interposed therebetween.   The scaffold attachment according to any one of claims 1 to 3, wherein the length of the arm portion is adjustable in accordance with the protruding portion.   2. An auxiliary abutment body, which is located between the abutment surface of the support portion and the surface of the building and has an enlarged abutment surface that is larger in area and flat than the abutment surface and abuts against the surface. The scaffold fixture of any one of -4.

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