JPH1096284A - Washer for antirotation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the rotation of a metal fitting by forming a projection having size, in which width is made slightly smaller than that of the slot of the metal fitting and length is made longer than the thickness of the metal fitting, to the rear of a tabular washer. SOLUTION: A through-hole is formed at the center of a plated steel plate. Both end sections on the center line of the steel plate are bent at a right angle to a rear and projections 9b are formed while the width of the projection 9b is made slightly smaller than that of the slot of a zigzag plate 5, and the space of the oppositely faced projections 9b is made smaller than the length of the slot of the plate 5 and made larger than the diameter of the anchor nut 1a of a panel. A projection 9c is formed on the surface side of the steel plate 9, and the washer 9 is formed. When the plate 5 is screwed to the panel by using the washer 9, a bolt 10 is inserted from the through-hole under the state, in which the projections 9b are inserted into the slot 5a of the plate 5, and screwed to the nut 1a and clamped, and the projection 9c is bent towards the head of the bolt 10. Accordingly, the revolution of the washer 9 can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of mounting an ALC panel or the like on a building frame when the mounting bracket is screwed to the panel with a headed bolt. This is related to the structure of the washer to be used.

[0002]

2. Description of the Related Art When an ALC panel is attached to a frame of a building to form an outer wall, various structures and associated methods are employed. Among them, there is a wall structure in which panels are attached to the frame so as to be able to swing or rotate slightly in order to improve the earthquake resistance of the building. To achieve such a wall structure, a bolt is inserted into the long hole of the mounting bracket fixed to the skeleton, the panel is engaged, and the panel rotates when the skeleton is tilted. There is a sway construction method in which an armature plate screwed to a panel is slidable on a frame or a panel.

For example, FIG. 5 shows a width of about 2,300 mm × 3.5.
FIG. 6 is a rear view illustrating an example in which a large ALC panel having a height of 00 mm is attached to a beam of a skeleton to form a vertical wall, and FIG. 6 is a view taken along arrows (A)-(A) of FIG. A horizontal portion of a pair of L-shaped ruler angle pieces 3 is fixed to an upper surface of the beam 2 at a desired width for each panel, and a vertical surface of each of the ruler angle pieces 3 is sandwiched between the horizontal portions of the own weight receiving bracket 6. The vertical part 6b is attached. A long cut 6a is provided on the center line of the upper end of the vertical surface of the weight receiving bracket 6, and the horizontal portion 6c
Project outward at a desired height. Then, the lower edge face of the panel 1 is supported by the horizontal portion 6c of the weight receiving bracket 6 via the support member 7, and the cut 6
a into a pair of left and right anchor nuts 1a embedded near the lower end of the panel 1, and washers 11
Is screwed through.

A pair of armature plates 5 are screwed to the anchor nut 1b via washers 11 at the upper end of the panel 1 with bolts 10 inserted in long holes 5a in the vertical direction. The upper end of the armature plate 5 is fixed to the ruler angle piece 3. Further, each bolt 10 is spot-welded to a washer 11, and the bolts 10 above and below the panel are respectively cut out 6 a of the weight receiving bracket 6.
And, it can move up and down along the long hole 5a of the armature plate 5. Therefore, when the frame is tilted due to an earthquake or the like, the panel 1 has a rocking structure in which the four corners move up and down with respect to the frame, and has a structure excellent in earthquake resistance.

FIG. 7 shows an ALC panel similar to that described above.
FIG. 8 is a vertical cross-sectional view illustrating an example in which the horizontal wall is configured by being attached to a pillar, and FIG. 8 is a view taken along arrows (B)-(B) of FIG. 7. Pillar 15
The horizontal portion of the weight receiving bracket 14 is fixed to the vertical surface of the ruler angle 16 which is vertically fixed at a desired height to the outside at a desired height. On the other hand, anchor nuts 1a are buried in the four corners of the ALC panel 1, and each of the inner plate 5 is screwed with a bolt 10 via a washer 11, and the upper upper plate 5 is a cut nail 8 for preventing rotation. It is fixed to the panel 1. Each bolt 10 is spot-welded to a washer 11, and the washer 11 is spot-welded to an armor plate 5, so that the bolt 10 does not rotate and loosen.

Then, the left and right snap plates 5 sandwich the vertical surface of the ruler angle 16 with the lower edge of the panel 1 held on the horizontal portion of the weight receiving bracket 4 via the support member 17. Welded in the state. Further, a pair of the armature plates 5 above the panel 1 also sandwich the vertical surface of the ruler angle 16 and can slide slightly on the vertical surface of the ruler angle 16 to be able to move slightly left and right. When the panel 1 is tilted, the panel 1 has a sway structure that slides left and right with respect to the frame, so that damage to the panel can be prevented.

As described above, in the vertical wall, the bolts 10 screwed to the four corners of the panel 1 are provided with the notches 6a in the vertical direction of the weight receiving fixture 6 fixed to the frame, and in the vertical direction of the inazuma plate 5. It moves up and down along the long hole 5a. On the side wall, the upper arm plate 5 slides on the vertical plane of the ruler angle 16 and moves left and right. Therefore, it is necessary to fix the bolt 10 by welding to the washer 11 and the arm plate 5 so that the bolt 10 is not loosened. There was a problem that it took time and effort to work in. As a countermeasure, there is a method using both a washer and a spring washer, but it has been difficult to completely prevent loosening in the long term.

As another countermeasure, there is a method in which an elliptical tubular projection is provided on the back surface of the washer and the projection is loosely fitted in the long hole of the fitting. However, the manufacturing cost is increased and the width of the long hole needs to be increased. Therefore, there is also a problem that the size of the metal fitting becomes large. Further, on the side wall, the upper side of the panel is not welded to the ruler angle, so if the bolts are loosened or you forget to insert the cut nail, the nameplate rotates and comes off the ruler angle In such a case, the panel may fall off.

[0009]

SUMMARY OF THE INVENTION The present invention provides a washer capable of preventing a bolt from loosening and a rotation of the mounting bracket when a bolt with a head is inserted into a long hole of the mounting bracket and screwed to a panel. It is.

[0010]

SUMMARY OF THE INVENTION The washer of the present invention is used for fixing a mounting member having a long hole with a bolt with a head.
A perforated washer inserted between the mounting bracket and the head of the bolt, wherein at least one projection is provided on the back surface of the plate-shaped washer, and the width of the projection is slightly smaller than the width of the long hole. The length of the projection is longer than the thickness of the metal fitting. At least one projection is provided on the surface of the washer near the outside of the bolt head inserted into the washer, and the projection is fixed to the bolt head directly or via a member. .

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION A washer of the present invention is used when a metal fitting is screwed to a panel having a hardness such that a cut nail such as an ALC panel can be driven therein. Since at least one projection is provided, the width of the projection is slightly smaller than the width of the long hole of the mounting bracket having the long hole, and the length of the projection is longer than the thickness of the metal fitting. At the time of tightening, the projections bite into the panel and do not rotate, so that the mounting bracket is prevented from rotating and does not need to be fixed with a cut nail. Further, on the back surface of the washer, at least one projection is provided on the outer side of the bolt head inserted into the washer, and the bolt head is fixed to this projection directly or via a member. The bolt does not loosen due to the reverse rotation, and it is not necessary to weld the bolt head to the washer, so that it is possible to save labor, time and cost.

The projections may be separately manufactured and attached to the washer. However, if the plate material forming the washer surface is bent and integrally formed, the structure is simple and the processing is easy, so that the manufacturing is inexpensive. can do. The number of protrusions on the front and back of the washer may be one or more. However, the outer shape of the washer surface should be slightly larger than the outer shape of the bolt head, and the width of the protrusion should be slightly smaller than the width of the long hole of the bracket. desirable. Even if there is no protrusion on the surface of the washer, the bolt head may be spot-welded to the surface of the washer.However, if a protrusion is provided on the surface of the washer and the bolt head is fixed to this protrusion, there is no need for welding, which is convenient. is there.

[0013]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a washer according to the present invention, and FIG. 2 is a longitudinal sectional view showing a state where an armature plate is screwed to a panel using the washer. The washer 9 of the present invention shown in FIG. 1 is made of a plated steel plate having a circular shape, a through hole 9a for inserting a bolt 10 at the center, and both ends on the center line are bent at right angles to the back surface to form projections 9b. I have. This projection 9b
Is slightly smaller than the width of the long hole of the inner plate 5, and the interval between the opposing protrusions 9b is smaller than the length of the long hole 5a of the inner plate 5, and larger than the diameter of the anchor nut 1a of the panel 1. Has become. The length of the projection 9b is slightly larger than the thickness of the inner plate 5, and a single upwardly bent projection 9c is provided on the surface of the washer 9 as well.

In order to screw the armature plate 5 to the ALC panel 1 (panel) using the washer 9, the washer 9 is inserted into the elongated hole 5 a of the armature plate 5 while the projection 9 b on the back surface of the washer 9 is inserted. 9, the bolt 9 is inserted through the through hole 9a, screwed into the anchor nut 1a embedded in the panel 1, and tightened, the projection 9b of the washer 9 bites into the panel 1, and the armature plate 5 and the washer 9 Fixed to 1. If the projection 9c on the surface of the washer is bent toward the head of the bolt 10 in this state, the bolt 10 cannot be rotated and does not loosen.

At this time, the interval between the projections 9b is larger than the diameter of the anchor nut 1a of the panel 1, and the length of the projection 9b is slightly larger than the thickness of the inner plate. 9b can enter without hindrance by avoiding the anchor nut 1a. Further, since the interval between the protrusions 9b is smaller than the length of the long hole 5a of the inner plate 5, the panel 1 slides on the inner plate 5,
It can reciprocate along the long hole 5a.

FIGS. 3A and 3B are a perspective view and a side view, respectively, of a washer 12 showing a second embodiment of the washer of the present invention. The washer 12 is formed by pressing a square plate-shaped plated steel plate. An H-shaped cut is made and bent at a right angle to the back side to form a square hole 12a and a pair of flat protrusions 12b. The width of the projection 12b is slightly smaller than the width of the long hole of the inner plate (not shown), and the interval between the opposed projections 12b is slightly larger than the outer diameter of the bolt (not shown) to be used. Is slightly larger than the thickness of the armature plate, and a pair of protrusions 12c is provided on the surface side of the washer 12 so as to face upward. This washer is used in the same way as washer 9 described above,
Since the distance between the projections 12b is small, the panel movement dimension increases. In this example, it is desirable that the distance to the distal end of the anchor 1a is long so that the projection 12b does not contact the anchor 1a of the panel 1.

FIGS. 4A and 4B are longitudinal sectional views for explaining a method of using the washer 13 of the third embodiment, and a supporting member 14.
The projection 13b on the back surface of the washer 13 is the same as the projection 12a of the washer 12 described above. The projection 13c on the surface forms a curved surface curved inward in a direction perpendicular to the projection 13b, and the support member 17 is formed by bending a round bar into a U-shape. When the armature plate 5 is attached using the washer 13, the bolt 10 is tightened in the same manner as in the above-mentioned respective washers, and then the support member 17 is provided between the projection 13c on the surface of the washer 13 and the bolt head. Is inserted, the bolt 10 is fixed to the washer 13 and does not loosen. Although three representative embodiments have been described above, the shape and dimensions of the washer and its projections of the present invention are not limited to this embodiment, but can be widely applied.

[0018]

As described above in detail, the washer of the present invention has at least one projection on the back surface of the plate-shaped washer.
Since the width of the projection is slightly smaller than the width of the long hole of the mounting bracket, and the length of the projection is longer than the thickness of the bracket, when the bolt is tightened, the projection bites into the panel, and the washer is formed. Since neither the bracket nor the bracket can be rotated, the bracket does not rotate and fall off from the ruler angle even if it is not fixed with a cut nail. Therefore, not only the number of steps for fixing with the cut nail is omitted, but also there is no possibility of trouble due to forgetting to cut the nail.

Further, at least one projection is provided on the surface of the washer near the outer side of the bolt head penetrating the washer.
If the bolt head is fixed to the projection directly or through a member, the bolt does not rotate in the reverse direction and is not loosened, and there is no need to weld the bolt head. can do. The shape and dimensions of the washer and its projection of the present invention can be applied in various ways, and a great effect can be obtained in practical use.

[Brief description of the drawings]

FIG. 1 is a perspective view of a washer according to a first embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view illustrating a usage state of the washer of FIG.

FIG. 3A is a perspective view of a washer according to a second embodiment of the present invention. FIG. 3B is a longitudinal sectional view of FIG.

FIG. 4A is a vertical cross-sectional view illustrating the usage of the washer of the third embodiment. (B) It is a perspective view of a support member.

FIG. 5 is a rear view showing the structure of the vertical wall.

FIG. 6 is a view taken in the direction of arrows (A)-(A) in FIG. 5;

FIG. 7 is a longitudinal sectional view showing a structure of a horizontal wall.

FIG. 8 is a view taken in the direction of arrows (B)-(B) in FIG. 7;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Panel 2 Beam 3,16 Ruler angle 6,14 Self-weight receiving bracket 5 Ina plate 7,17 Supporting member 8 Cut nail 10 Bolt 9,11,12,13 Washer 15 pillar

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[Procedure amendment]

[Submission date] December 5, 1996

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0017

[Correction method] Change

[Correction contents]

FIGS. 4A and 4B are a longitudinal sectional view and a perspective view of a support member 17 for explaining a method of using the washer 13 of the third embodiment. Same as 12a. And projections 13 on the surface
“c” forms a curved surface curved inward in a direction perpendicular to the projection 13b, and the support member 17 is formed by bending a round bar into a U-shape. When the armature plate 5 is attached using the washer 13, the bolt 10 is tightened in the same manner as in the above-mentioned respective washers, and then the support member 17 is provided between the projection 13c on the surface of the washer 13 and the bolt head. Is inserted, the bolt 10 is fixed to the washer 13 and does not loosen. The three typical embodiments have been described above.
The shape and dimensions of the washer and its projection of the present invention are not limited to this embodiment, but can be widely applied.

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] Fig. 4

[Correction method] Change

[Correction contents]

FIG. 4 is a vertical cross-sectional view and a perspective view of a support member for explaining a usage state of a washer of a third embodiment.

Claims (2)

[Claims] 1. A perforated washer to be inserted between a mounting bracket and a head of a bolt when the mounting bracket having a long hole is fixed by a bolt with a head. A single projection, wherein the width of the projection is slightly smaller than the width of the long hole, and the length of the projection is longer than the thickness of the metal fitting; . 2. The surface of the washer according to claim 1, wherein at least one of the bolt heads is inserted near an outer side of a bolt head inserted through the washer.
A plurality of protrusions are provided, and the protrusions are fixed to the bolt head directly or via members.