JP2013133906A - Reinforcing fitting for hanger - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reinforcing fitting for a hanger which prevents the deformation of a blade provided in the horizontal direction of the hanger and can be used together with a conventional reinforcing fitting.SOLUTION: A fitting body 1 is formed in such a shape as to surround an outside surface of the hanger 10. A fixing bolt 2 passing through a locking part 12 from a side surface of the fitting body 1 is provided. The fitting body 1 surrounding an outside surface of the locking part 12 is attached in such a manner as to be locked to a top surface of the blade 14. A fixing bolt connecting hole 3 overlapping a connecting hole 16 of the locking part 12 is formed. The fixing bolt 2 is inserted through the fixing bolt connecting hole 3 and the connecting hole 16. An inclined plane 1E is provided at a base end of an insertion opening 1D. A horizontal protrusion P1 with a different thicknesses is configured to be put into a contact state from below by the inclined plane 1E and the fixing bolt connecting hole 3.

Description

  The present invention relates to a reinforcing metal fitting for a hanging metal fitting that can prevent the deformation of the hanging metal fitting even when subjected to repeated shaking during an earthquake.

  As described in Patent Document 1, the applicant of the present application has previously proposed a seismic auxiliary tool for a hanging metal fitting that is attached so that the hanging metal fitting attached to the shape steel is not detached even by vibration such as an earthquake. This auxiliary tool is attached to a hanging bracket for supporting a suspension bolt. The hanging metal fitting to which this auxiliary tool is attached has an approximately U-shaped opening that is engaged with the horizontal protrusion of the shape steel flange, and the inside of this opening. It is attached to a hanging metal fitting of a type having a fastening bolt for fastening the horizontal protrusion from below.

  The structure of the auxiliary tool of Patent Document 1 includes a locking housing that has a substantially U-shaped planar shape that is locked to the side surface of the hanging bracket and that extends in the opening direction of the hanging bracket, and a fixed plate body that is connected to the shape steel. It is provided. By attaching this auxiliary tool to the hanging bracket, even if the fastening bolt of the hanging bracket is loosened due to an earthquake or the like, the auxiliary bracket supports the hanging bracket, so that the hanging bracket can be prevented from falling off. .

  Further, Patent Document 2 describes an auxiliary tool that reinforces a hanging metal fitting having a blade type. A pair of the blades is provided on the left and right side surfaces of the suspension fitting, and has an effect of increasing the left and right support strength with respect to the suspension fitting by being brought into contact with the flange of the shape steel. In the auxiliary tool of Patent Document 2, a long bolt is used as a means for reinforcing the hanging metal fitting provided with such blades in place of the flat U-shaped locking housing used in Patent Document 1. Is.

Japanese Patent No. 2747667 JP 2011-163078 A

  According to the auxiliary metal fittings described in Patent Document 1 and Patent Document 2, it is possible to reinforce along the longitudinal direction of the locking housing and the long bolt, and in the direction in which the flange of the shaped steel comes off from the opening of the hanging metal Can be prevented from moving. However, the Great East Japan Earthquake revealed that there were unexpected vulnerabilities in a direction contrary to these initial expectations.

  That is, among the hanging metal fittings, the type provided with the blades described in Patent Document 2 has blades that contact the flange of the shape steel on the left and right side surfaces, so that the support strength in the left-right direction is particularly reinforced. It was thought that it was durable enough without it. However, when the type of suspension fitting with this blade equipped with a conventional auxiliary fitting was confirmed after the earthquake, it was confirmed that the blade was deformed and there was a gap between the flange and the blade. ing. This is because the blades are deformed by receiving unexpected vibrations and loads in the left and right blade directions with respect to the type of suspension metal fitting provided with the blades. In this way, the suspension fittings in which the blades are deformed and a gap is generated on the contact surface with the flange have already completely lost the tightening holding force against the flange, and can easily be removed when an aftershock or the like is applied. There is a risk.

  Therefore, the present invention was created to solve the above-mentioned problems, and by attaching it to a type of suspension fitting having a blade, the durability of the suspension fitting against the load and vibration applied in the lateral direction of the suspension fitting is enhanced. An object of the present invention is to provide a suspension metal fitting that can prevent deformation and can be used in combination with a conventional type metal fitting that uses square U-bolts.

In order to achieve the above-mentioned object, the first means in the present invention is to attach to the existing hanging metal fitting 10 to be engaged with the horizontal projection P1 of the construction material P using the shape steel, and the supporting strength of the hanging metal fitting 10 In the reinforcing bracket for suspension brackets that strengthens
The hanging metal fitting 10 includes a support portion 11 that vertically supports the suspension bolt Q, a locking portion 12 that extends horizontally from the upper portion of the support portion 11 and locks on the horizontal projection P1 of the construction material, and a support The side surface is substantially U-shaped with the crimping part 13 that is horizontally extended from the lower part of the part 11 and is attached to the lower surface of the horizontal projection part P1 with a fastening bolt 15 that is clamped from below. A hanging bracket 10 having a pair of left and right blades 14 to be brought into contact with a locking portion 12,
A planar U-shaped fitting body 1 formed so as to surround the locking portion 12 and the outer surface of the crimping portion 13 from the outer surface of the support portion 11 of the hanging metal fitting 10, and the locking portion from the side surface of the fitting body 1 And a fixing bolt 2 penetrating through 12,
The fitting body 1 surrounding the outer surface of the locking portion 12 is mounted so as to be locked to the upper surface of the blade 14,
A fixing bolt connecting hole 3 overlapping the connecting hole 16 opened in the locking portion 12 is formed on the side surface of the fitting body 1, and the fixing bolt 2 is inserted into the fixing bolt connecting hole 3 and the connecting hole 16 and suspended. That is, it is configured to be fixed to the metal fitting 10.

In the second means, the fitting body 1 is provided on the outer surface of the support portion 11, the support plate 1 </ b> A that overlaps the outer surface of the support portion 11, the locking plate 1 </ b> B that overlaps the outer surface of the locking portion 12, and the outer surface of the crimp portion 13. The crimping plate 1C to be stacked is continuously formed,
The fixing bolt connecting hole 3 is formed at a position overlapping with the connecting hole 16 opened in the locking portion 12 and in the shape of a horizontally long slot,
An inclined surface 1E for adjusting the width of the insertion port 1D is provided at the base end of the insertion port 1D formed between the side plate 1B and the reinforcing piece 1C, and the positions of the inclined surface 1E and the fixing bolt connecting hole 3 are adjusted. Thus, the horizontal protrusions P1 having different thicknesses are configured to contact from below.

  3rd means WHEREIN: The said fitting body 1 is provided so that the notch part may be formed in the said support plate 1A, and the internal support part 11 may expose partially, and the existing reinforcement metal fitting which uses a square U-shaped volt | bolt 20 is configured to be locked to the support portion 11 from above the support plate 1A.

  As in the first aspect of the present invention, the fitting body 1 surrounding the outer surface of the locking portion 12 is mounted so as to be locked to the upper surface of the blade 14 and overlaps with the connecting hole 16 opened in the locking portion 12. The fixing bolt connecting hole 3 is formed on the side surface of the fitting body 1, and the fixing bolt 2 is inserted into the fixing bolt connecting hole 3 and the connecting hole 16 to be fixed to the hanging bracket 10. The durability against load and vibration applied in the left-right direction with respect to the provided type of hanging metal fitting 10 can be enhanced. As a result, it is possible to prevent the suspension fitting from being deformed even if it is repeatedly shaken during an earthquake.

  Further, since the fitting body 1 is formed so as to surround the outer surface of the locking portion 12 and the crimping portion 13 from the outer surface of the support portion 11 of the hanging metal fitting 10, the structure of each part of the hanging metal fitting 10 is strengthened. Can do.

  As in claim 2, an inclined surface 1E for adjusting the width of the insertion port 1D is provided at the base end portion of the insertion port 1D formed between the side plate 1B and the reinforcing piece 1C, and is fixed to the inclined surface 1E. By configuring the horizontal protrusions P1 of different thicknesses from below according to the position with the bolt connection hole 3, the strength of supporting the horizontal protrusions P1 from the bottom by the inclined surface 1E as well as the reinforcement of the blades 14 by the side plates 1B. Since it is increasing, it is possible to reliably prevent the hanging bracket 10 from falling sideways in the left-right direction.

  According to claim 3, the fitting body 1 is provided so that a notch portion is formed in the support plate 1 </ b> A so that a part of the inner support portion 11 is exposed, and the square U-shaped bolt of the conventional reinforcing bracket 20 is provided. By being configured to be engaged with the support portion 11 from above the support plate 1A, it is possible to use it together with the conventional reinforcing metal fitting 20.

It is a perspective view which shows one Example of this invention. It is a side view which shows the use condition of this invention. It is a perspective view which shows one Example of the reinforcement metal fitting used together in this invention. It is a perspective view which shows the other Example of the reinforcement metal fitting used together by this invention.

  According to the present invention, by attaching to a suspension bracket of a type having blades, the durability against load and vibration applied in the left-right direction of the suspension bracket is strengthened to prevent deformation of the blades, and square U-bolts are used. The original purpose, such as being able to be used together with conventional reinforcing metal fittings, has been achieved.

  Examples of the present invention will be described below. The reinforcing metal fitting of the present invention is attached to an existing hanging metal fitting 10 that is locked to the horizontal projection P1 of the construction material P using a shape steel, and prevents deformation of the blade.

  The hanging metal fitting 10 to which the reinforcing metal fitting of the present invention is attached is particularly a hanging metal fitting 10 provided with blades 14 (see FIG. 4). That is, the hanging metal fitting 10 has a substantially U-shaped side surface at the support portion 11, the locking portion 12, and the crimping portion 13 (see FIG. 2). That is, the support portion 11 is a member that vertically supports the suspension bolt Q, and a locking portion 12 that extends horizontally from the upper portion of the support portion 11 and locks on the horizontal projection P1 is provided. . Furthermore, the crimping part 13 is a member that extends horizontally from the lower part of the support part 11, and a fastening bolt 15 that is fastened and fixed from below is attached to the lower surface of the horizontal protrusion P <b> 1. Then, a pair of left and right blades 14 are provided in the locking portion 12, and the blades 14 are brought into contact with the upper surface of the horizontal protrusion P1 (see FIG. 4). Moreover, the connection hole 16 is formed in the support part 11 and the crimping | compression-bonding part 13 previously, and it is comprised so that the other instruments according to the installation condition of the hanging metal fitting 10 can be connected (refer FIG. 2).

  The reinforcing metal fitting of the present invention includes a fitting body 1 and a fixing bolt 2 (see FIG. 1). The fitting body 1 has a planar U-shape formed so as to surround the outer surface of the locking portion 12 and the crimping portion 13 from the outer surface of the support portion 11 of the hanging metal fitting 10. And the fitting body 1 surrounding the outer side surface of the latching | locking part 12 is mounted | worn so that it may latch on the upper surface of the blade | wing 14 (refer FIG. 4). Further, a fixing bolt connecting hole 3 that overlaps with the connecting hole 16 opened in the locking portion 12 is formed on the side surface of the fitting body 1, and the fixing bolt 2 is inserted into the fixing bolt connecting hole 3 and the connecting hole 16. And is fixed to the hanging bracket 10 (see FIG. 2).

  The illustrated fitting body 1 is formed by bending a single metal plate and continuously forming a support plate 1A, a locking plate 1B, and a crimping plate 1C. It forms so that the outer surface of the part 13 may be enclosed (refer FIG. 4).

  On the other hand, the fixing bolt connecting hole 3 is formed in a horizontally long slot shape at a position overlapping with the connecting hole 16 opened in the locking portion 12 (see FIG. 2). And the inclined surface 1E which adjusts the width | variety of this insertion port 1D is provided in the crimping | compression-bonding plate 1C in the base end part of insertion port 1D formed between the side plate 1B and the reinforcement piece 1C (refer FIG. 1). Depending on the positions of the inclined surface 1E and the fixing bolt connecting hole 3 formed in this way, the inclined surface 1E can contact the horizontal protrusions P1 having different thicknesses from below (see FIGS. 2 and 3).

  That is, the inclined surface 1E shown in FIG. 2 shows a state in contact with the thick horizontal protrusion P1. In this case, the horizontal protrusion P1 is in contact with the inclined surface 1E at the wide portion of the insertion port 1D. On the other hand, the inclined surface 1E shown in FIG. 3 shows a state in contact with the thin horizontal protrusion P1. The horizontal protrusion P1 is in contact with the inclined surface 1E at a portion where the width of the insertion port 1D is narrowed. In this case, the fitting body 1 shown in FIG. 3 slides so as to approach the construction material P as a whole as compared with the fitting body 1 shown in FIG. Therefore, the sliding movement of the fitting body 1 can be handled. As described above, even if the thickness of the horizontal protrusion P1 inserted into the insertion port 1D is different, the inclined surface 1E always comes into contact with the horizontal protrusion P1 from below.

  The reinforcing metal fitting of the present invention can be used alone or in combination with the conventional reinforcing metal fitting 20. Therefore, the support plate 1A of the fitting body 1 is formed with a notch 1F used when used together with the reinforcing metal fitting 20 (see FIG. 1). The cutout portion 1F is provided so that a part of the inner support portion 11 is exposed (see FIGS. 3 and 4). And when using the conventional type reinforcement metal fitting 20 using a square U-bolt, the engagement metal fitting 21 of the reinforcement metal fitting 20 is engaged with the support portion 11 exposed from the notch portion 1F of the support plate 1A. It is composed.

  In the auxiliary metal fitting according to the present invention, the conventional reinforcing metal fitting 20 is a reinforcing metal fitting 20 of a type using square U-bolts. In the example of illustration, the reinforcement metal fitting 20 comprised by the square U-shaped bolt-shaped latching metal 21 and the latching plate 22 latched to the horizontal projection part P1 of various construction materials P is shown. At this time, the locking plate 22 selectively uses the locking plate 22 having a different shape according to the type of shape steel of the construction material P.

  The locking plate 22 shown in FIG. 3 shows a locking plate 22 of the type that locks to the horizontal protrusion P1 when the construction material P is L-shaped steel. This type of locking plate 22 is formed by bending a locking piece 22A that locks to the upper end of L-shaped steel at the top. The square U-shaped bolt-shaped locking fitting 21 inserted through the through hole 22B of the locking plate 22 is fixed by a fixing nut 21A.

  The locking plate 22 shown in FIG. 4 shows a locking plate 22 of a type that locks to the horizontal protrusion P1 when the H-shaped steel is used as the construction material P. This type of locking plate 22 includes a locking piece 22B that locks on the horizontal protrusion P1, and a locking piece 22C that locks on the lower surface of the horizontal protrusion P1. And it is comprised so that it can respond to the horizontal projection part P1 from which thickness differs by changing the angle of 22 C of latching pieces.

  The conventional reinforcing metal fitting 20 is not limited to the illustrated example, and can be used in combination with another reinforcing metal fitting 20 that uses a square U-shaped bolt-shaped locking metal fitting 21.

  In the present reinforcing metal fitting, it is described as being mainly attached to the hanging metal fitting 10 fixed to the horizontal projection P1 of the construction material, but the mounting position of the present reinforcing metal fitting is not limited to this example, Any location may be used as long as the hanging bracket 10 can be fixed, and the usage location of the present invention is not limited to this example. Further, the present invention is not limited to the illustrated examples, and the design can be freely changed without changing the gist of the present invention.

P Construction material P1 Horizontal protrusion Q Suspension bolt 1 Fitting body 1A Support plate 1B Locking plate 1C Crimping plate 1D Insertion port 1E Inclined surface 2 Fixing bolt 2A Fixing nut 3 Fixing bolt connecting hole 10 Hanging bracket 11 Supporting portion 12 Locking portion DESCRIPTION OF SYMBOLS 13 Crimp part 14 Wing | blade 15 Tightening bolt 16 Connection hole 20 Reinforcing bracket 21 Locking bracket 21A Fixing nut 22 Locking plate 22A Locking piece 22B Locking piece 22C Locking piece

Claims (3)

Attach to the existing hanging brackets that are locked to the horizontal projections of the construction material using the shape steel,
The hanging bracket includes a supporting portion that vertically supports the suspension bolt, a locking portion that extends horizontally from the upper portion of the supporting portion and that locks on the horizontal projection of the construction material, and that extends horizontally from the lower portion of the supporting portion. A pair of left and right blades that make contact with the horizontal protrusions are used as locking parts. The hanging bracket provided,
A planar U-shaped fitting body formed so as to surround the locking portion and the outer surface of the crimping portion from the outer surface of the support portion of the hanging bracket, and a fixing bolt that penetrates the locking portion from the side surface of the fitting body With
A fitting body surrounding the outer surface of the locking portion is mounted so as to lock the upper surface of the blade,
A fixing bolt connecting hole that overlaps with the connecting hole opened in the locking portion is formed on the side surface of the fitting body, and the fixing bolt is inserted into the fixing bolt connecting hole and the connecting hole and fixed to the hanging bracket. Reinforcing metal fittings for hanging metal fittings. The fitting body is continuously formed with a support plate that overlaps the outer surface of the support portion, a locking plate that overlaps the outer surface of the locking portion, and a pressure plate that overlaps the outer surface of the crimping portion,
The fixing bolt connecting hole is formed at a position overlapping with the connecting hole opened in the locking portion and in the shape of a horizontally long slot,
An inclined surface for adjusting the width of the insertion port is provided at the base end portion of the insertion port formed between the side plate and the reinforcing piece, and horizontal protrusions having different thicknesses depending on the positions of the inclined surface and the fixing bolt connecting hole. The reinforcing metal fitting for a hanging metal fitting according to claim 1, wherein the metal fitting is configured to contact the portion from below.   The fitting body is provided so that a notch portion is formed in the support plate so that a part of the internal support portion is exposed, and an existing reinforcing metal fitting using a square U-bolt is provided from the top of the support plate to the support portion. The reinforcement metal fitting for suspension metal fittings of Claim 2 comprised so that it might latch.

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