JPH09273256A - Collapse prevention spacer for member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent collapse of a mullion and improve workability in mounting of a bracket by mounting a mounting part of a spacer from a radial direction to a tightening bolt and bringing two side-wall contact parts contact with each of side walls of the mullion. SOLUTION: A nut 27 is screwed onto a tightening bolt 26 piercing opposed side walls 14 and 14 of a hollow member such as a mullion 10, and brackets 25 and 25 are temporarily fixed to the side wall 14. Next, the tightening bolt 26 is passed through a slit part 5f of mounting parts 5a and 5a of a collapse prevention spacer 5 and positioned in a bolt insertion part 5g. Two side-wall contact parts 5e and 5e of the spacer 5 are brought into contact with each of the side walls 14 of the mullion 10, and the nut 27 is tightened in this state. As a result, collapse of the mullion 10 is prevented, and the brackets 25 are solidly mounted without rattling or displacement.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spacer for preventing crushing of a member used when mounting a bracket using bolts (including screws) on opposing walls of a vertical surface which face each other.

[0002]

2. Description of the Related Art Conventionally, as a crush preventing spacer for the above-mentioned members, there is, for example, one shown in FIG. 6, and this crush preventing spacer 110 is composed of hollow members S each having a bolt insertion hole Sc formed therein. A plurality of reinforcing walls 111, both end surfaces of which face opposite facing walls Sa, Sa, respectively, and bolt remaining holes 112, and the remaining facing walls Sb, S of the hollow member S.
Positioning wall 11 for positioning the bolt insertion hole 112 with respect to the bolt insertion hole Sc by contacting both end surfaces with b respectively.
3 is provided.

When the brackets 102, 102 are attached to the facing walls Sa, Sa of the hollow member S using the bolts 101, the spacer 110 is inserted into the hollow portion of the hollow member S, and the washer 103 on one side and Bracket 10
The bolt 101 holding 2 is inserted into the hollow member S from one bolt insertion hole Sc, passes through each bolt insertion hole 112 of the spacer 110, and protrudes from the other bolt insertion hole Sc into the bolt 101 and the bracket 102 on the other side. After holding the washer 103, the nut 104 is screwed in to fix the brackets 102, 102.

Further, as a conventional crush preventing spacer for other members, for example, there is a steel pipe 120 shown in FIGS. 7 and 8, and this steel pipe 120 is used as a facing wall S of a hollow member S.
When used to attach the brackets 102, 102 to a, Sa, as one means, as shown in FIG.
The diameter of the bolt insertion hole Sc located on the left side of the drawing is set to the steel pipe 12
Larger diameter bolt insertion hole SC formed larger than diameter 0
Then, the bolt 101 holding the washer 103, the bracket 102, and the steel pipe 120 on one side is inserted into the hollow member S from the large diameter bolt insertion hole SC together with the steel pipe 120, and the steel pipe 120 is the edge portion of the other bolt insertion hole Sc. The bolt 101 through the other bolt insertion hole Sc, and the other side bracket 102 is attached to the bolt 101.
After holding the washer 103 and the washer 103, a method of screwing the nut 104 to fix the brackets 102 and 102 is adopted. As another means, as shown in FIG.
Is inserted into the hollow portion of the hollow member S, and the bolt 101 holding the washer 103 and the bracket 102 on one side is inserted into the hollow member S through the bolt insertion hole Sc on one side, and the steel pipe 120
To the bolt 101 protruding through the other bolt insertion hole Sc through the bracket 102 and the washer 103 on the other side.
After holding, the nut 104 is screwed in to fix the brackets 102, 102.

[0005]

However, when the spacer 110 for preventing the crushing of the member is conventionally used for attaching the brackets 102, 102 to the opposing walls Sa, Sa of the hollow member S, it is apparent from FIG. Further, although the positioning of the bolt insertion hole 112 with respect to the bolt insertion hole Sc of the hollow member S can be relatively easily performed by the plurality of positioning walls 113, the plurality of reinforcing walls 111 and the plurality of positioning walls 113 are provided. Spacer 1
There is a problem that the material cost and the processing cost of 10 itself become high.

In addition, the steel pipe 120 is attached to the facing wall S of the hollow member S.
When used to attach the brackets 102, 102 to a, Sa, as shown in FIG. 7, the diameter of the bolt insertion hole Sc located on the left side of the drawing is made larger than the diameter of the steel pipe 120 to form a large diameter bolt insertion hole SC. In this case, the bracket mounting workability is improved, but the steel pipe 12
When the length of 0 is larger than a predetermined value or the width of the hollow member S in the bolt penetrating direction is smaller than a predetermined value, the bracket 102 is apt to rattle or shift, and as shown in FIG. When inserting the steel pipe 120 into the hollow portion of the hollow member S, it is difficult to align the steel pipe 120 with the bolt insertion hole Sc of the hollow member S, that is, the bolt 1
It is difficult to insert 01 into the steel pipe 120, and it has been a conventional problem to solve these problems.

[0007]

The object of the present invention is, of course, that when a bracket is attached to opposing walls of a vertical direction using bolts, the bracket can be firmly attached without crushing the vertical direction. It is an object of the present invention to provide a spacer for preventing crushing of members, which can realize reduction of material cost and processing cost and improvement of workability of mounting a bracket.

[0008]

A crush preventing spacer for a member according to claim 1 of the present invention is attached to two opposing wall abutting portions which abut against opposing walls of the member and a fastening bolt in a radial direction. It is characterized in that it has a mounting portion and is configured to be mounted between the opposing walls of the member by being attached from the radial direction with respect to the tightening bolt that penetrates the opposing wall of the member,
The structure of the crush preventing spacer of this member is used as a means for solving the conventional problems.

Further, in the member crush preventing spacer according to claim 2 of the present invention, the mounting portion is continuous with the slit portion along the longitudinal direction of the tightening bolt and through which the tightening bolt can pass. It is equipped with a bolt insertion part through which the tightening bolt is inserted, and the tightening bolt that has passed through the slit part of the mounting part is located inside the bolt insertion part and is attached from the radial direction to the tightening bolt that penetrates the opposing wall of the member. It has been configured.

Further, according to the third aspect of the present invention, in the member collapse prevention spacer, the bolt insertion portion can be elastically deformed, and the bolt insertion portion and the tightening bolt are fitted to each other so that the bolt penetrates the opposite wall of the member. The bolt is attached from the radial direction to the bolt, and in the member collapse prevention spacer according to claim 4 of the present invention, the bolt insertion portion is provided with a recess along the longitudinal direction of the tightening bolt.
According to a fifth aspect of the present invention, the member collapse prevention spacer has a structure in which the facing wall contact portion is an end surface of the bolt insertion portion in the mounting portion.

[0011]

In the crush preventing spacer for a member according to the first and second aspects of the present invention, for example, when the brackets are attached to the facing walls of the hollow member facing each other by using the tightening bolts, the tightening through the facing wall is performed. After the nut is screwed into the bolt to temporarily fix the bracket to the opposing wall, the mounting portion of the collapsing prevention spacer is attached to the tightening bolt in the radial direction (in the collapsing prevention spacer of the member according to claim 2, the mounting portion When the tightening bolt that has passed through the slit part is located in the bolt insertion part), and the two opposing wall abutting parts are brought into contact with the opposing walls, respectively, and the nut is tightened in this state, crushing of the hollow material is prevented, The bracket will be firmly attached without rattling or shifting.

Therefore, the crush preventing spacer of this member does not require the positioning wall of the conventional spacer, and can be easily arranged at a predetermined position between the opposing walls, which is in comparison with the conventional spacer. As a result, the material cost and the processing cost are significantly reduced, and the workability of attaching the bracket is improved.

Further, in the crush preventing spacer for a member according to the third aspect of the present invention, the bolt inserting portion which is elastically deformable in a state where the attaching portion of the crush preventing spacer is attached to the tightening bolt in the radial direction. Since it is fitted with the tightening bolt to prevent it from coming off from this tightening bolt, it is not necessary to hold this collapsing prevention spacer until the nut is tightened, and as a result, the mounting workability of the bracket is further improved. Will be improved.

Further, in the member crush prevention spacer according to claim 4 of the present invention, since the thickness of the portion where the recess is provided in the bolt insertion portion of the mounting portion is thin,
The bolt insertion part is easily elastically deformed to that extent, which facilitates attachment to the tightening bolt.

Furthermore, in the collapsing prevention spacer for a member according to claim 5 of the present invention, the opposing wall abutting portion has the abutment portion when the mounting portion of the collapsing prevention spacer is radially attached to the tightening bolt. The hollow member is crushed because it abuts on the hole edge portion of the bolt insertion hole formed in the opposing wall and its periphery, that is, the abutting wall abutting portion abuts on the portion of the opposing wall where the tightening force of the tightening bolt is concentrated. Will be reliably prevented.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings.

FIGS. 1 to 3 show an embodiment of a member collapse prevention spacer according to the present invention. In this embodiment, the member collapse prevention spacer according to the present invention is used as an outer wall of a building. It shows the case where it is used to attach the bracket to the upright of the curtain wall.

As shown in FIGS. 2 and 3, the curtain wall 1 has a plurality of uprights 10 (FIG. 2) fixed to the frame B.
(Only one stand is shown in FIG. 3), the upper frame 2 and the lower frame 3 are installed between them, and the panel 4 is supported by the upper frame 2, the lower frame 3 and the stand 10.

The cubic 10 is a cubic main body 1 having a rectangular cross section.
1 and a T-shaped piece 1 extending in the longitudinal direction extending from the center of the side wall 12 located on the outdoor side (left side in the drawing) of the cubic body 11.
3, the upper end of the cubic body 11 is connected to the L-shaped steel 21 provided on the skeleton B via the fastener 22 and the bracket 23, and the lower end of the cuboid body 11 is connected to the skeleton B.
It is fixed to the skeleton B by being connected to the L-shaped steel 24 provided on the bracket 4 via the bracket 25, and is attached to the panel 4 by the T-shaped piece 13 and the ridge 29 fitted into the T-shaped piece 13.
It supports the side edges of.

In this case, the side walls (opposite walls of the member) 14, 14 along the prospective direction of the upright 10 facing each other have bolt insertion holes 15, at both upper and lower end portions.
15 are provided respectively, and these bolt insertion holes 1
The nuts 27 are screwed into bolts (tightening bolts) 26 penetrating the vertical direction 10 through the vertical direction Nos. 5 and 15 to attach the brackets 23 and 25 to the vertical direction 10, respectively. Spacers (spacers for preventing the members from being crushed) 5 are provided at the places where the bolts penetrate.

The spacer 5 is, as shown in FIG.
A mounting portion 5a having a substantially tubular shape that is mounted in the radial direction of a bolt 26 that penetrates the upright 10 through the bolt insertion holes 15 and 15 is provided. The mounting portion 5a includes a slit portion 5f along the longitudinal direction of the bolt 26 and capable of passing the bolt 26, and a bolt insertion portion 5g which is continuous with the slit portion 5f and through which the bolt 26 is inserted. In this embodiment, both end surfaces of the mounting portion 5a are side wall abutting portions (opposing wall abutting portions) 5e, 5e which abut on both of the side walls 14, 14 of the upright 10 which face each other, and the bolt insertion portion 5g. Is elastically deformable.

Further, the slit portion 5f of the bolt insertion portion 5g
As shown in FIG. 1 (b), the protrusions 5 b, 5 b along the longitudinal direction of the bolt 26 are arranged to face each other at a position closer to each other at a distance narrower than the diameter of the bolt 26, and the slit portion 5 f.
At the bottom portion located on the opposite side to, there is provided a ridge 5d which also extends in the longitudinal direction of the bolt 26.
By making b, 5b, and 5d respectively abut on the outer peripheral surface of the bolt 26 from the radial direction, the bolt insertion portion 5g is fitted to the bolt 26 substantially on its axial center. That is, since the spacer 5 is positioned substantially on the axial center of the bolt 26, the side wall abutting portions 5e, 5e of the spacer 5 are concentric with the hole edge portion of the bolt insertion hole 15 and surround the hole edge portion. To abut.

In this case, recesses 5c are provided along the longitudinal direction of the bolt 26 at a plurality of locations (four locations in this embodiment) in the bolt insertion portion 5g, and the wall thicknesses at these recesses 5c are reduced. As a result, when the bolt 26 passes through the slit portion 5f and is fitted into the bolt insertion portion 5g, the bolt insertion portion 5g is easily elastically deformed in the direction in which the interval between the protrusions 5b, 5b functioning as the bolt slip-out prevention increases. That is, the spacer 5 is easily attached to the bolt 26.

Next, an explanation will be given of how to attach the brackets 25, 25 to the side walls 14, 14 of the above-mentioned upright 10. In addition, the bracket 23 for the side walls 14, 14 of the cubic 10
Since the mounting procedure is different only in the mounting angle of the bracket 23, the description thereof will be omitted.

First, a washer 2 on one side (left side in FIG. 1A)
8 and the bolt 26 holding the bracket 25 is inserted into the upright 10 from the bolt insertion hole 15 on one side, and the bolt 26 protruding from the bolt insertion hole 15 on the other side (the right side in FIG. 1A) is attached to the bracket 26 on the other side. 25 and the washer 28 are held, and then the nut 27 is screwed into the bracket 2
Temporarily fix 5,25.

Next, the spacer 5 is inserted from the opening of the upright 10, and the protrusions 5b, 5b, 5d are respectively applied from the radial direction to the outer peripheral surface of the bolt 26 which has passed through the slit portion 5f of the mounting portion 5a. The bolt 26 and the bolt insertion portion 5g are fitted to each other by contacting each other, that is, the attachment portion 5a is attached to the bolt 26 in the radial direction, and the side wall abutting portion 5 is attached.
When the nuts 27 are tightened tightly after the e and 5e are brought into contact with the side walls 14 and 14 having the bolt insertion holes 15, respectively, the spacer 5 maintains the space between the side walls 14 and 14, that is, the crushing of the upright 10. Thus, the bracket 25 is firmly attached to the upright 10 without rattling or shifting.

At this time, since the side wall abutting portion 5e of the spacer 5 is concentric with the hole edge portion of the bolt insertion hole 15 and abuts around the hole edge portion, the collapse of the upright 10 is ensured. In addition to being avoided, the side walls 14, 1 of the cubic 10
It becomes less slippery than 4.

In other words, the spacer 5 can be easily set at the spacer mounting position on the upright 10, so that the mounting workability of the bracket 25 can be improved, and in addition to the conventional spacer. Compared with this, material costs and processing costs are significantly reduced.

In the spacer 5, the protrusions 5b and 5b prevent the spacer 5a from falling off from the bolt 26 when the mounting portion 5a is radially attached to the bolt 26 as described above. Since it is not necessary to hold the spacer 5 until it is strongly tightened, the mounting workability of the bracket 25 can be further improved.

FIG. 4 shows a tool 30 used for mounting the spacer 5 on the bolt 26 in the hollow portion of the upright 10.
This tool 30 has an elongated shape, and has a spacer fitting portion 31 that fits in the radial direction with the spacer 5 at the tip. The opening width of the spacer fitting portion 31 is smaller than the outer diameter of the spacer 5, and a slit 33 is provided between the spacer fitting portion 31 and a through hole 32 formed in parallel with the spacer fitting portion 31. Therefore, the spacer fitting portion 3
When the spacer 5 is attached to or detached from the spacer 1, the spacer fitting portion 3
The opening width of 1 is set to a width that allows passage of the spacer, and by appropriately increasing the length of the tool 30,
The spacer 5 can be easily attached to the bolt 26 located away from the opening of the upright 10.

FIG. 5 shows another embodiment of the member crush preventing spacer according to the present invention. The spacer 51 shown in FIG. 5 (a) is more than the recess 5c of the spacer 5 in the previous embodiment. A large number of recesses 51c having a narrow width are provided, and the spacer 52 shown in FIG. 5 (b) is provided with eight recesses 52c having a larger wall thickness than the spacer 5. Further, the spacer 53 shown in FIG.
The recess 53c having a width wider than the recess 5c of the spacer 5 in the previous embodiment is provided at two places.
The spacer 54 shown in (d) has a thickness larger than that of the spacer 5 and is provided with recesses 54c at two positions. Further, the spacer 55 shown in FIG. 5 (e) has a uniform thickness without a recess, and the spacers 51 to 55 are appropriately selected and used according to the specifications of the mounting site. It is like this.

In the above-mentioned embodiment, the case where the crush preventing spacer of the member according to the present invention is used for attaching the bracket to the upright of the curtain wall used as the outer wall of the building is shown, but the present invention is not limited to this. is not.

[0033]

As described above, in the spacer for preventing crushing of members according to claims 1 and 2 of the present invention,
Because of the above-mentioned configuration, for example, when the brackets are attached to the opposing walls of the hollow member by using the tightening bolts, the hollow member can be securely prevented from being crushed and the bracket can be firmly attached to the predetermined position. In addition, it is possible to significantly reduce the material cost and the processing cost as compared with the related art, and it is possible to significantly improve the mounting workability of the bracket, which is a very excellent effect.

Further, in the crush preventing spacer for a member according to claim 3 of the present invention, until the nut is tightened in a state where the mounting portion of the crush preventing spacer is attached to the tightening bolt in the radial direction, Since it is not necessary to hold the crush-preventing spacer, for example, when the bracket is attached to the opposing wall of the hollow member by using the tightening bolt, the workability of attaching the bracket can be further improved. With the member crush prevention spacer according to claim 4, it is possible to easily attach to the tightening bolt, and with the member crush prevention spacer according to claim 5 of the present invention, it is possible to reliably prevent the hollow material from being crushed. Is very effective.

[Brief description of drawings]

FIG. 1 is a perspective explanatory view (a) showing a spacer mounting procedure when a member crush preventing spacer according to an embodiment of the present invention is used for mounting a bracket to a vertical facing wall and a front explanatory view of the spacer ( b).

FIG. 2 is a vertical cross-sectional explanatory view of a curtain wall showing a situation in which the member crush preventing spacer in FIG. 1 is applied to the attachment of the bracket to the upright of the curtain wall.

3 is a cross-sectional explanatory view taken along the line AA in FIG.

FIG. 4 is a perspective explanatory view of a tool used for mounting the crush preventing spacer of the member shown in FIG. 1 on a bolt in a vertical hollow portion.

FIG. 5 is a front explanatory view (a) to (e) showing another embodiment of the crush preventing spacer of the member according to the present invention.

FIG. 6 is a perspective explanatory view showing a mounting procedure when a conventional member crush preventing spacer is used for mounting a bracket to a hollow member.

FIG. 7 is a perspective explanatory view showing a mounting procedure when a conventional crush preventing spacer for another member is used for mounting a bracket to a hollow member.

FIG. 8 is a perspective explanatory view showing a mounting procedure when a conventional crush preventing spacer for another member is used for mounting a bracket to a hollow member.

[Explanation of symbols]

5, 51, 52, 53, 54, 55 Spacer for preventing collapse of member 5a Mounting part 5e Side wall contact part (opposing wall contact part) 5f Slit part 5g Bolt insertion part 10 Stand (member) 14 Side wall (of member) Opposite wall) 26 bolts

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[Procedure amendment]

[Submission date] May 27, 1996

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0010

[Correction method] Change

[Correction contents]

Further, according to the third aspect of the present invention, in the member collapse prevention spacer, the bolt insertion portion can be elastically deformed, and the bolt insertion portion and the tightening bolt are fitted to each other so that the bolt penetrates the opposite wall of the member. The bolt is attached from the radial direction to the bolt, and in the member collapse prevention spacer according to claim 4 of the present invention, the bolt insertion portion is provided with a recess along the longitudinal direction of the tightening bolt.
According to a fifth aspect of the present invention, there is provided a member for preventing collapse of a member according to claim 6, wherein the opposing wall abutting portion is an end surface of a bolt insertion portion of the mounting portion. The mounting bolts are mounted in the radial direction with respect to the tightening bolts penetrating the vertical facing walls and are arranged between the vertical facing walls.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0015

[Correction method] Change

[Correction contents]

Furthermore, in the collapsing prevention spacer for a member according to claim 5 of the present invention, the opposing wall abutting portion has the abutment portion when the mounting portion of the collapsing prevention spacer is radially attached to the tightening bolt. The hollow member is crushed because it abuts the hole edge portion of the bolt insertion hole formed in the opposing wall and its periphery, that is, the abutting wall abutting portion abuts the portion of the opposing wall where the tightening force of the tightening bolt concentrates. Will be reliably prevented. And claim 6 of the present invention
In the crush preventive spacer of the member related to, when the bracket is attached to the opposing walls of the vertical side by using the tightening bolts, after the nut is screwed into the tightening bolt penetrating the opposite wall, the bracket is temporarily fixed to the opposite wall. ,
If the mounting portion of the crush prevention spacer is attached to the tightening bolt in the radial direction and the two opposing wall contact portions are respectively brought into contact with the opposing walls and the nuts are tightened in this state, the vertical crushing is prevented. The bracket can be firmly attached without rattling or shifting.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0034

[Correction method] Change

[Correction contents]

Further, in the crush preventing spacer for a member according to claim 3 of the present invention, until the nut is tightened in a state where the mounting portion of the crush preventing spacer is attached to the tightening bolt in the radial direction, Since it is not necessary to hold the crush-preventing spacer, for example, when the bracket is attached to the opposing wall of the hollow member by using the tightening bolt, the workability of attaching the bracket can be further improved. With the member crush prevention spacer according to claim 4, it is possible to easily attach to the tightening bolt, and with the member crush prevention spacer according to claim 5 of the present invention, it is possible to reliably prevent the hollow material from being crushed. Therefore, the spacer for preventing the collapse of the member according to claim 6 of the present invention has the advantage of being capable of It is possible to securely mount the bracket in place while securely preventing it. In addition, it is possible to significantly reduce the material cost and the processing cost as compared with the conventional one, and to significantly improve the bracket mounting workability. It has a very excellent effect that it can be improved.

Claims (5)

[Claims] 1. A pair of opposing wall abutting portions that abut against opposing walls of a member, and a mounting portion that is attached to the tightening bolt in the radial direction, and the radial direction with respect to the tightening bolt that penetrates the opposing wall of the member. A spacer for preventing crushing of a member, characterized in that it can be attached and arranged between opposing walls of the member. 2. The mounting portion includes a slit portion along the longitudinal direction of the tightening bolt and through which the tightening bolt can pass, and a bolt insertion portion which is continuous with the slit portion and through which the tightening bolt is inserted. The member crush preventive spacer according to claim 1, wherein the tightening bolt that has passed through the portion is located in the bolt insertion portion and is attached from the radial direction to the tightening bolt that penetrates the opposing wall of the member. 3. The bolt insertion part is elastically deformable, and the bolt insertion part and the tightening bolt are fitted to each other so as to be attached from the radial direction to the tightening bolt penetrating the opposing wall of the member. Spacer for preventing crushing of the member. 4. The member crush preventing spacer according to claim 2, wherein the bolt insertion portion is provided with a recess along the longitudinal direction of the tightening bolt. 5. The member collapsing prevention spacer according to claim 2, wherein the facing wall abutting portion is an end surface of the bolt insertion portion of the mounting portion.