JPH10325206A - Hanger - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hanger which is installed easily onto a support plate, on which a hanger bolt can be fixed tightly and firmly and which is manufactured readily. SOLUTION: In the substantially bilaterally symmetric hanger installed to a support plate 21, a through-hole into which a hanger bolt 11 is penetrated is formed at a center, vertical walls are formed on both sides of the through- hole, the upper sections of the vertical walls have double structure having hollow sections 14L, 14R, inwall surfaces 18L, 18R constitute guides for the hanger bolt 11, and the upper sections 17L, 17R of external wall surfaces configure retaining sections inserted and retained into a downward recessed strip 23 of the support plate 21. The hanger bolt 11 penetrated to the through-hole expands a section between both vertical walls during a time when the hanger bolt 11 reaches the upper sections of the vertical walls along the inwall surfaces 18L, 18R, and reaches the top face 24 of the downward recessed strip 23 of the support plate 21 at that time, and the retaining sections can be abutted and fixed onto the wall surfaces 22L, 22R of the recessed strip 23 of the support plate 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for supporting a hanger bolt for suspending a ceiling or an instrument on a lower surface of a concrete floor of a building structure or a composite floor composed of concrete and a steel deck plate. The present invention relates to a hanger used for fixing to a plate.

[0002]

2. Description of the Related Art Conventionally, there is a hanger structure described in Japanese Patent Publication No. 4-75975 as a means for suspending a ceiling or a device below a concrete floor or a composite floor of a building structure.

This hanger structure is provided on a lower surface of a deck plate and has a downward groove having an upper surface width larger than an opening width of a downward opening edge, a latch fitting inserted into the downward groove, and an external latch. The hanger bolt is screwed into the metal fitting, and the locking metal fitting is a bifurcated metal fitting comprising a bottom plate and left and right side plates extending upward from both right and left ends of the bottom plate. A pair of hook-shaped locking portions are formed in which the upper portion of the inclined upper portion is symmetrically bent outward and obliquely upward, and the upper end portion is bent inward substantially horizontally so as to be inserted into the downwardly concave groove. And an arcuate concave portion is provided vertically at the center of the inner surface of the inclined portion near the inner side of the left and right side plates, and a bead is formed at the center of the outer surface of the inclined portion, and the base ends of the pair of hook-shaped locking portions are bent. A rib that expands outward at the widthwise outer end of the part Is, nut holes in the bottom plate of the left and right sides plates is threadedly through the hanger bolt is penetrated drilled in the transparent hole concentrically, which are fixed.

[0004] The hanger structure configured as described above,
When hanging the ceiling, etc., screw the tip of the hanger bolt to the nut of the locking bracket, hold the other end of the hanger bolt,
A pair of hook-shaped locking parts of the locking metal fitting screwed to the tip are inserted vertically into the downwardly-facing recesses of the deck plate, and then a pair of hook-like locking parts abut against the upper surface of the downwardly-facing recesses of the deck plate. Then, rotate the hanger bolt to penetrate the tip from the nut, push the tip of the hanger bolt between the opposite circular arc-shaped recesses of the left and right side plates of the locking metal fitting, and incline the inner side of the left and right side plates. And the hook-shaped engaging portion at the upper end thereof is expanded, and the tip of the hanger bolt is passed through a space between the pair of hook-shaped engaging portions to abut on the upper surface of the downward concave streak, and the hanger bolt is further rotated by rotating the hanger bolt. The catch is pulled downward, and the hook-shaped locking portions are tightly attached to the inner surfaces on both the left and right sides of the downwardly facing ridge of the deck plate, and are firmly fixed.

[0005] The hanger structure in the above-mentioned deck plate has a structure in which the Z-shaped connection portion on the right end of one deck plate is connected to the left side of the other deck plate even if the size of the downwardly-facing concave stripes varies. Even in the case of a narrow concave recess formed by fitting the hook-shaped connecting portion at the end, the left and right side plates of the locking metal have elasticity and are inclined inward, and a pair of upper ends thereof Because the width of the hook-shaped locking part is narrow,
The locking fitting attached to the tip of the hanger bolt can be inserted even in the vertical state, and even when it can not be inserted in the vertical state, tilt it to one side and press the hook-shaped locking part on one side against the inner surface of one side of the downwardly facing concave streak. After inserting diagonally while narrowing the width of the left and right side plates against elasticity, if it is made vertical, the hook-shaped locking part on the other side can be inserted into the downward concave strip, so turn the hanger bolt and turn left and right By pushing between the arcuate recesses on both side plates, the hanger bolts can smoothly push out the left and right side plates without moving left and right, and open the hook-shaped locking parts left and right,
During this time, the tip comes into contact with the upper surface of the downward concave streak through the tip, and by further rotating the hanger bolt, the locking metal is pulled downward, and the hook-shaped locking portion is brought into close contact with the left and right inner surfaces of the downward concave streak, and securely. There is an effect that it can be fixed firmly.

In the above hanger structure, the hanger bolts are inserted between the arc-shaped concave portions of the left and right side plates of the locking member in the assembled state, so that the left and right side plates of the locking member are not closed inward. Also, since the tip of the hanger bolt is in contact with the upper surface of the downward recess through the space between the hook-shaped locking portions, the hook-shaped locking portions are not closed inward, and the hanger bolts are circled on the left and right side plates. Since it is fixed by being sandwiched between the arc-shaped recesses, it does not shake back and forth and right and left and seismic strength is increased, so when hanging the ceiling plate etc. at the lower end of the hanger bolt with a lock nut etc.,
Even if an excessive load is applied, the locking metal never falls off from the downward concave portion and is safe. In addition, since a bead is provided at the center of the left and right side plates and a rib is provided at the outer end in the width direction, the tensile strength of the left and right side plates is high, and the bent portion at the base end of the hook-shaped locking portion does not open. The close contact between the hook-shaped locking portion and the left and right inner surfaces of the downwardly facing concave streak is maintained, so that a firmly fixed state of the locking metal can be secured.

[0007]

The locking metal used in the hanger structure of the deck plate has practical advantages as described above. Due to the complicated shape having the ribs and the ribs, it is difficult to keep the manufacturing cost low because the mold is consumed greatly during the manufacturing. In addition, the hanger bolt screwed into the nut is rotated and pushed between the arc-shaped concave portions of the left and right plates, and is pushed open between the pair of hook-shaped engaging portions at the upper end, so that the upper surface of the downwardly facing concave strip of the deck plate is opened. In order to achieve this, it is necessary to form the interval between the pair of hook-shaped locking portions at the upper end to have an appropriate width. Adjusting this interval to an appropriate width after manufacturing takes too much time and causes production loss. There was a case.

An object of the present invention is to provide a hanging bracket which has all of the practical advantages of the above-described locking bracket, is easy to manufacture, can reduce the manufacturing cost, and does not cause a manufacturing loss. The purpose is.

[0009]

According to a first aspect of the present invention, there is provided:
A substantially left-right hanging metal fitting that is attached to a support plate having a downwardly-facing concave streak whose upper surface width is larger than the opening width of the downward opening edge and the left and right wall surfaces are inverted C-shaped inclined surfaces,
At the center there is a through hole passing through the hanger bolt, standing walls are formed on both sides of the through hole, the upper part of the standing wall is a double structure having a hollow portion, and the inner wall surface constitutes a guide for the hanger bolt. The upper portion of the outer wall forms an engaging portion that is inserted and locked in the downwardly facing concave streak of the support plate, and the hanger bolt passing through the through hole reaches the upper portion of the upright wall along the inner wall surface. The space between the two walls is expanded
In addition, the locking portion can reach the upper surface of the downwardly-facing concave streak of the support plate and abut and be fixed to the wall surface of the downwardly-facing concave streak of the support plate.

[0010] A second aspect of the present invention is characterized in that the hollow portion above the standing wall is formed by bending both ends of a metal plate forming the standing wall.

In a third aspect of the present invention, the inner wall surface of the upright wall is formed as a flared inclined surface to constitute a guide for the hanger bolt, and the upper outer wall surface is formed as an upwardly sloping inclined surface. It is characterized in that it constitutes a locking portion that is inserted and locked in the downwardly facing groove of the support plate.

A fourth aspect of the present invention is characterized in that the through hole is formed as a nut through which the hanger bolt is screwed.

A fifth aspect of the present invention is characterized in that a nut for threading the hanger bolt is attached to the through hole.

[0014]

According to the first aspect of the present invention, the hanging fitting has standing walls formed on both sides of a through hole passing through the hanger bolt, and the upper part of the standing wall has a double structure having a hollow portion. The upper part is an enlarged part. The inner wall surface of the enlarged portion is configured as a hanger bolt guide, and the hanger bolt is movable upward along the inner wall surface. The upper portion of the upright wall having the double structure is inserted into a downwardly concave groove having an upper surface width larger than an opening width of a downwardly opening edge provided on the support plate and having left and right wall surfaces formed into inverted C-shaped inclined surfaces. In the case where the opening width of the downwardly-facing concave streak is small and the upper part of the upright wall having the double structure cannot be vertically inserted, it can be inserted by obliquely attaching the hanging bracket. When the hanger bolt is moved upward to open the space between the two compatible walls, the outer wall surface of the hollow portion comes into contact with the wall surface of the concave streak, and the hanging fitting does not fall out of the downward concave streak. When the hanger bolt reaches the upper surface of the downwardly facing concave streak and is further moved upward to press the outer wall of the enlarged portion against the inner wall of the concave streak, the hanger bolt is firmly fixed to the support plate by the hanging metal.

The hanging fitting of the present invention has an easy-to-manufacture shape in which the upper portion of the upright wall provided on both sides of the through hole through which the hanger bolt penetrates has a double structure to form a hollow portion, so that the manufacturing cost can be kept low. it can.

Further, since the inner wall surface of the hollow portion is configured as a guide for the hanger bolt, the hanger bolt can be easily moved along the inner wall surface of the upright wall even when the interval between the upper ends of the both walls is narrow. Can protrude above the upper end. Therefore, the hanger bolt can protrude above the upper end of the standing wall even if the interval between the upper ends of the standing walls is narrow,
No production loss occurs.

Further, since the inner wall surface of the hollow portion is in contact with the hanger bolt, the gap between the two compatible walls is not reduced or shaken. Therefore, the locking portion on the outer wall surface of the hollow portion is
There is little swinging back and forth, left and right, high seismic resistance, and when the ceiling or equipment is hung from the lower end of the hanger bolt with a lock nut etc., the hanging bracket does not fall off the support plate even if a large load is applied It is safe.

Further, since the outer wall of the hollow portion which comes into contact with the inner wall of the concave portion of the support plate does not directly contact the hanger bolt and does not receive any force when the hanger bolt is moved, the locking portion of the outer wall of the hollow portion is always stable. To secure a firmly fixed state of the hanging bracket.

Further, by adjusting the size of the hollow portion, it is possible to easily cope with a change in the size of the concave streak of the support plate.

As described above, the hanging bracket of the present invention has a hanger bolt firmly attached to the support plate despite the fact that no arc-shaped concave portions are formed on the left and right side plates and no bead and rib are provided. Can be fixed.

According to the second aspect of the present invention, since the hollow portion above the standing wall is formed by bending the end of the metal plate forming the standing wall, the hollow portion of the supporting plate into which the upper portion of the hanging metal fitting is fitted is formed. A hollow portion having an appropriate size and shape can be easily formed in accordance with the size and shape of the downwardly facing concave streak.

According to the third aspect of the present invention, since the inner wall surface of the upright wall is formed as a flared inclined surface,
The hanger bolt that has passed through the through hole can move smoothly upward along the inclined surface while expanding the inclined surface, and the tip can easily pass over the upper end of the upright wall. Also,
Since the upper outer wall surface of the upright wall is formed as an upwardly sloping inclined surface, the inner wall surface expands when the hanger bolt is moved upward after the upright wall upper portion is inserted into the downwardly-facing ridge of the support plate. Accordingly, the outer wall surface is pressed against the side wall of the downwardly facing concave streak of the support plate. As a result, the hanging fitting is firmly fixed to the downward concave streak of the support plate, and the hanger bolt is not only locked in the through hole of the hanging fitting, but also clamped at the upper part of the inner wall surface of the compatible wall, Firmly fixed to the hanging bracket.

According to the fourth aspect of the present invention, since the through-hole of the hanging bracket is formed as a nut through which the hanger bolt is screwed, the hanger bolt is screwed with the through-hole and penetrated at an arbitrary position. Locked in the hole.

According to the fifth aspect of the present invention, since the nut through which the hanger bolt is screwed is attached to the through hole of the hanging bracket, the hanger bolt is screwed with the nut attached to the through hole. It is locked in the through hole at any position.

[0025]

1 and 2 are front views showing a use state of one embodiment of a hanger according to the present invention.

The hanging metal fitting 10 is formed of a band-shaped metal plate, and a through-hole 12 is provided in the center of the band-shaped metal plate so as to penetrate the hanger bolt 11.
3R is formed.

A nut 15 through which the hanger bolt 11 is screwed is integrally attached to the through hole 12. Nut 1
The nut 15 is fixed integrally with the through-hole 12 by inserting a stopper 16 extending from the lower end of the through-hole 5 into the through-hole 12 and pushing the same around the periphery of the through-hole 12.

The interval between the supporting walls 13L and 13R is narrowed upward, and the upper end has a double structure having hollow portions 14L and 14R. The hollow portions 14L and 14R are formed by bending both ends of the strip-shaped metal plate outward, and outer walls 17L and 17R of the hollow portions 14L and 14R protrude outside the vertical walls 13L and 13R. Hollow part 1
The inner wall surfaces 18L, 18R of the 4L, 14R are each
It is an extension surface of 3L, 13R.

As shown in FIG. 1, when the hanger bolt 11 is screwed into the nut 15, the upper surface width is larger than the opening width of the downward opening edge provided on the support plate 21 of the building structure 20, and the left and right wall surfaces 22L, 22R. The upper portions of the standing walls 13L and 13R are inserted into the downward concave ridges 23 each having an inverted C-shaped inclined surface, and the upper end surfaces thereof are in contact with the upper surface 24 of the downward concave ridges 23, and the hanger bolt 11 is further screwed. The hanger bolt 11 moves upward while expanding the standing walls 13L and 13R, and reaches the upper ends of the standing walls 13L and 13R.

As shown in FIG. 2, when the hanger bolt 11 is screwed in even after the upper end surface of the hanger bolt 11 reaches the upper surface 24 of the downwardly facing ridge 23, the double-walled outer wall 17L, 17R is pressed against the inclined side surfaces 22L and 22R of the downwardly-facing concave streak 23.

Since the gap between the upper portions of the both walls 13L and 13R is expanded by the hanger bolt 11, the space between the upper and lower walls 13L and 13R is increased.
The upper double structural part of L, 13R abuts and is fixed to the side surfaces 22L, 22R of the downwardly facing ridge 23 of the support plate,
The hanging fitting 10 and the hanger bolt 11 do not fall out of the opening of the concave streak 23.

As shown in FIG. 2, the hanger bolt 11
Is screwed with the nut 15 and is sandwiched between the upper inner wall surfaces 18L and 18R of the compatible wall.
, And has excellent seismic resistance, and does not shake or loosen due to vibration even when a load is applied to the hanger bolt 11 by attaching a ceiling, equipment, or the like.

FIGS. 3 and 4 are front views showing a use state of another embodiment of the hanging fitting of the present invention.

The hanging bracket 30 is formed of a band-shaped metal plate, and a through hole 3 penetrating the hanger bolt 31 is formed at the center of the band-shaped metal plate.
2 are provided, and both sides thereof are bent to stand upright walls 33L, 33L.
R is formed.

A nut 35 through which the hanger bolt 31 is screwed is integrally attached to the through hole 32. Nut 3
The nut 35 is fixed integrally with the through-hole 32 by inserting a stopper 36 extending from the lower end of the through-hole 5 into the through-hole 32 and pushing the same around the periphery of the through-hole 32.

The metal plates that form the supporting walls 33L and 33R rise inclining inward to form ascending portions 45L and 45R.
R is formed, and then bent approximately 60 ° to form substantially horizontal upper surfaces 46L and 46R, and bent again approximately 60 ° downward to form substantially inverted triangular hollow portions 34L and 34R, forming a double structure. Inner walls 38 of the hollow portions 34L and 34R
L and 38R are inclined surfaces and reach the ascending portions 45 and 45R that are inclined inside the standing walls 33L and 33R. The inner walls 38 </ b> L and 38 </ b> R function as guides for the hanger bolt 31 on an inclined surface whose upper part is narrowed.

As shown in FIG. 3, when the hanger bolt 31 is screwed into the nut 35, the upper surface width is larger than the opening width of the downward opening edge provided on the support plate 41 of the building structure 40, and the left and right wall surfaces 42L, 42R. Insert the upper portions of the standing walls 33L, 33R into the downwardly-recessed ridges 43, each of which has an inverted C-shaped inclined surface, so that the hollow portions 34L,
The substantially horizontal upper surfaces 46L and 46R of the 34R are formed by downwardly facing concave stripes 43.
And the hanger bolt 31 is further screwed. The hanger bolt 31 is provided with the hollow portions 34L, 34R.
While moving in contact with the inner walls 38L, 38R, the upper wall moves upward while expanding between the inner walls, and reaches the upper end thereof.

As shown in FIG. 4, when the hanger bolt 31 is screwed in after the upper end surface of the hanger bolt 31 reaches the upper surface 44 of the downwardly facing concave streak 43, a substantially inverted c of the double structure of the upper end of the hanger 30 is obtained. The outer surfaces of the character-shaped protrusions 37L, 37R are pressed against the inclined side surfaces 42L, 42R of the downwardly-facing ridge 43.

The hollow portions 34L, 3 of the compatible walls 33L, 33R
Since the interval between the upper portions of the inner wall surfaces 38L and 38R having the dual structure of 4R is expanded by the hanger bolt 31, the protrusions 37L and 37L, which are the outer walls of the hollow portions 34L and 34R, are provided.
37R is the side surface 42 of the downwardly facing concave streak 43 of the support plate.
L and 42R are abutted and fixed, and the hanging fitting 30 and the hanger bolt 31 do not fall out of the opening of the concave streak 43.

As shown in FIG. 4, the hanger bolt 31
Is screwed with the nut 35 and has an inner wall surface 38L,
Since it is clamped by 38R, it is firmly fixed to the hanging bracket 30 and has excellent seismic resistance. Even when a heavy object such as a ceiling or equipment is attached to the hanger bolt 31, it does not shake or loosen due to vibration.

In each of the above embodiments, the nut is fixed integrally with the through-hole by inserting the stopper extending from the lower end of the nut into the through-hole of the hanging fitting and pushing and expanding the periphery of the through-hole. It is also possible to arrange the nut concentrically with the through-hole on the bottom plate provided with the through-hole, and fix the nut with a standing wall and a stopper extending left and right from the standing wall. Instead of attaching the nut, a screw that is screwed with the hanger bolt may be formed on the thick inner peripheral surface of the through hole or on the inner peripheral surface of the cylindrical portion rising from the through hole. Further, another means that can movably lock the hanger bolt may be used.

[Brief description of the drawings]

FIG. 1 is a front view in a use state showing an embodiment of a hanging bracket of the present invention.

FIG. 2 is a front view in a use state in which the hanging fitting of FIG. 1 is attached to a support plate.

FIG. 3 is a front view in a use state showing another embodiment of the hanging fitting of the present invention.

FIG. 3 is a front view in a use state in which the hanging fitting of FIG. 3 is attached to a support plate.

[Explanation of symbols]

10, 30 ... hanging bracket, 11, 31 ... hanger bolt, 1
2, 32 ... through-hole, 13L, 13R, 33L, 33R ...
Standing wall, 14L, 14R, 34L, 34R ... hollow part, 1
5, 35 ... nut, 16, 36 ... stopper, 17L, 17
R: outer wall, 18L, 18R, 38L, 38R: inner wall,
20, 40: building structure, 21, 41: support plate,
22L, 22R, 42L, 42R ... wall surface, 23, 43 ...
Downwardly concave stripes, 24, 44: upper surface, 37L, 37R: projecting portion, 45L, 45R: ascending portion, 46L, 46R: upper surface.

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[Procedure amendment]

[Submission date] July 10, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Brief description of drawings

[Correction method] Change

[Correction contents]

[Brief description of the drawings]

FIG. 1 is a front view in a use state showing an embodiment of a hanging bracket of the present invention.

FIG. 2 is a front view in a use state in which the hanging fitting of FIG. 1 is attached to a support plate.

FIG. 3 is a front view in a use state showing another embodiment of the hanging fitting of the present invention.

FIG. 4 is a front view in a use state in which the hanging fitting of FIG. 3 is attached to a support plate.

[Explanation of Signs] 10, 30 ... hanging brackets, 11, 31 ... hanger bolts, 1
2, 32 ... through-hole, 13L, 13R, 33L, 33R ...
Standing wall, 14L, 14R, 34L, 34R ... hollow part, 1
5, 35 ... nut, 16, 36 ... stopper, 17L, 17
R: outer wall, 18L, 18R, 38L, 38R: inner wall,
20, 40: building structure, 21, 41: support plate,
22L, 22R, 42L, 42R ... wall surface, 23, 43 ...
Downwardly concave stripes, 24, 44: upper surface, 37L, 37R: projecting portion, 45L, 45R: ascending portion, 46L, 46R: upper surface.

Claims (5)

[Claims] 1. A substantially symmetrical suspension fitting mounted on a support plate having a downwardly-facing concave streak having a top surface width larger than an opening width of a downwardly-opening edge, and right and left wall surfaces of which are inverted C-shaped inclined surfaces. In the center, there is a through-hole penetrating the hanger bolt, an upright wall is formed on both sides of the through-hole, the upper portion of the upright wall has a double structure having a hollow portion, and the inner wall surface guides the hanger bolt. The upper portion of the outer wall surface constitutes a locking portion that is inserted and locked in the downwardly-facing ridge of the support plate, and the hanger bolt penetrating the through hole is provided on the upper portion of the standing wall along the inner wall surface. Before reaching, it is possible to expand the space between the two supporting walls, reach the upper surface of the downwardly-facing ridge of the support plate, and abut and fix the locking portion to the wall surface of the downwardly-facing ridge of the support plate. A hanging bracket characterized by the following. 2. The hanging metal fitting according to claim 1, wherein the hollow portion above the standing wall is formed by bending both ends of a metal plate forming the standing wall. 3. An inner wall surface of the upright wall is formed as a flared inclined surface to form a guide for the hanger bolt, and an upper outer wall surface of the upright wall is formed as an upwardly sloping inclined surface to form the hanger bolt. 3. The hanging metal fitting according to claim 1, wherein said hanging metal fitting comprises a locking portion inserted and locked in said downwardly facing groove. 4. The hanging metal fitting according to claim 1, wherein said through hole is formed as a nut through which said hanger bolt is screwed. 5. The hanging bracket according to claim 1, wherein a nut for threading the hanger bolt is attached to the through hole.