JP5416758B2 - Reinforcing bracket for hanging bracket - Google Patents

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 shape steel is removed from the opening of the hanging metal fitting. 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.

  Accordingly, the present invention was created to solve the above-described problems, and aims to provide a reinforcing metal fitting for a hanging metal fitting that can reinforce durability against load and vibration applied to the right and left direction of the hanging metal fitting. is there.

In order to achieve the above-mentioned object, the first means in the present invention is attached to the hanging metal fitting 10 to be engaged with the horizontal protrusion P1 of the construction material P using the shape steel, and strengthens the supporting strength of the hanging metal fitting 10. In the reinforcing bracket for suspension bracket,
The hanging metal fitting 10 includes a support portion 11 that supports the lower surface of the horizontal projection portion P1, a crimp portion 12 that is equipped with a fastening bolt 15 that fastens and fixes the horizontal projection portion P1 on the support portion 11 from above, and these support portions. The support portion 11 includes a pair of left and right blades 14 that are substantially U-shaped on the side surface and are connected to the horizontal projection portion P1 on the support portion 11. A hanging bracket 10,
A planar U-shaped coupling base 1 coupled so as to surround the outer surface of the coupling part 13 of the hanging bracket 10, and extended from the distal end of the coupling base 1, supporting the lower surfaces of the left and right blades 14 to support the blades A pair of reinforcing pieces 2 for reinforcing 14,
The fixing bolt insertion hole 3 is opened at a position where it overlaps with the connection holes 16 and 18 opened in the connecting portion 13 or the support portion 11 of the hanging metal fitting 10, and is suspended by the fixing bolt 5 inserted through the fixing bolt insertion hole 3. A long bolt insertion hole 4 is opened in the base end surface 1A formed at the rear end of the connection base 1 and is fixed to the construction material P. The long bolt 21 connected to the long bolt insertion hole 4 is configured to be inserted into the long bolt insertion hole 4 .

In the second means, the fixing bolt insertion hole 3 is formed at a position where the fixing bolt insertion hole 3 overlaps the connection hole 16 opened in the connection part 13 of the suspension fitting 10, and the reinforcing piece 2 is connected to the connection base part 1. And is formed so as to cover the outer side of the lower metal fitting 17 suspended from the support portion 11.

In the third means, the fixing bolt insertion hole 3 is formed at a position where the fixing bolt insertion hole 3 is overlapped with the connection hole 18 opened in the support portion 11 of the suspension fitting 10, and is fixed by the fixing bolt 19 inserted through the connection hole 18. In addition, the reinforcing piece 2 is configured to be disposed between the lower metal fitting 17 and the support portion 11.

  As in claim 1 of the present invention, a planar U-shaped coupling base 1 that is coupled so as to surround the outer surface of the coupling part 13 of the suspension fitting 10, and a left and right blade extending from the distal end of the coupling base 1 A pair of reinforcing pieces 2 that support the lower surface of the blade 14 and reinforce the blade 14, and are fixed at positions where they overlap with the connection holes 16 and 18 opened in the connection portion 13 or the support portion 11 of the hanging bracket 10. Since the bolt insertion hole 3 is opened and fixed to the hanging bracket 10 with the fixing bolt 5 inserted through the fixing bolt insertion hole 3, the left and right direction with respect to the hanging bracket 10 of the type having the blades 14 is provided. The durability against the load and vibration applied to the blade 14 can be enhanced, and the deformation of the blade 14 can be prevented.

Moreover , the long bolt 21 which opens the long bolt insertion hole 4 in the base end surface 1A formed in the rear end portion of the connection base 1 and is locked to the construction material P and connected to the connection portion 13 of the hanging bracket 10 is provided . By being configured to be inserted into the long bolt insertion hole 4, it is possible to use the reinforcing bracket 20 using the long bolt 21 when using the reinforcing bracket of the present invention. In addition, since the strength of the connecting portion 13 can be reinforced by the connecting base 1, the reinforcement of the blade 14 by the reinforcing metal fitting 20 and the reinforcement of the connecting portion 13 by the connecting base 1 can be combined to enable extremely strong reinforcement. become. As a result, the blades 14 can be prevented from being deformed even when subjected to repeated shaking during an earthquake.

As in claim 2 , the fixing bolt insertion hole 3 is formed at a position overlapping with the connection hole 16 opened in the connection part 13 of the hanging metal fitting 10, and the reinforcing piece 2 is bent and extended from the connection base part 1. Since it forms so that the outer side of the lower metal fitting 17 suspended from the support part 11 may be covered, it can mount | wear without being interrupted by the lower metal fitting 17 suspended from the support part 11 of the hanging metal fitting 10. FIG.

As in claim 3 , the fixing bolt insertion hole 3 is formed at a position overlapping with the connecting hole 18 opened in the support portion 11 of the hanging metal fitting 10, and is fixed by the fixing bolt 19 inserted through the connecting hole 18. Since the reinforcing piece 2 is arranged between the lower bracket 17 and the support portion 11, the reinforcing bracket of the present invention can be mounted between the support portion 11 and the lower bracket 17, and the hanging bracket Therefore, efficient reinforcement integrated with 10 is possible.

It is a principal part perspective view of the use condition which shows one Example of the suspension metal fitting of this invention. It is a principal part side view of the use condition which shows one Example of the hanging metal fitting of this invention. It is a front view which shows one Example of the connection base of this invention. It is a top view which shows one Example of the connection base of this invention. It is a perspective view which shows one Example of this invention. It is a perspective view which shows the other Example of this invention. It is a perspective view of the use condition which shows the other Example of this invention. It is a front view which shows the other Example of the connection base of this invention. It is a side view of the use condition which shows the other Example of this invention. It is a front view which shows the other Example of the connection base of this invention.

  According to the present invention, the initial purpose of, for example, enhancing the durability against the load and vibration applied in the left-right direction of the hanging metal fitting has been achieved.

  Examples of the present invention will be described below. The reinforcing metal fitting of the present invention is provided with a long bolt 21 of the reinforcing metal fitting 20 to be engaged with the horizontal protrusion P1 of the construction material P, thereby strengthening the support strength of the hanging metal fitting 10.

The present invention reinforcing brackets has a hanger 10 having a blade 14 (see FIG. 1). That is, the hanging metal fitting 10 has a substantially U-shaped side surface at the support portion 11, the crimping portion 12, and the connecting portion 13 (see FIG. 2). Then, the lower surface of the horizontal protrusion P1 is supported by the support part 11, and the fastening bolts 15 that fasten and fix the horizontal protrusion P1 on the support part 11 from above are attached to the pressure-bonding part 12. The connecting portion 13 that integrally connects the portion 12 forms a substantially U-shaped side surface. A pair of blades 14 is formed on the left and right sides of the support portion 11 and abuts against the lower surface of the horizontal protrusion P1. Further, a connecting hole 18 is formed on the side surface of the support portion 11, and the lower bracket 17 is suspended by a fixing bolt 19 inserted into the connecting hole 18 (see FIG. 9). On the other hand, a pair of upper and lower connecting holes 16 are formed on the side surface of the connecting portion 13. This connection hole 16 is formed so that arbitrary members can be connected according to a use condition (refer FIG. 2). The reinforcing metal fitting of the present invention is attached to the hanging metal fitting 10 using the connecting hole 16 and the connecting hole 18.

  The basic configuration of the reinforcing metal fitting of the present invention is composed of a connecting base 1 and a reinforcing piece 2 (see FIG. 1). The connection base portion 1 has a U-shape that is connected so as to surround the outside of the connection portion 13 of the hanging bracket 10 (see FIG. 4). On the other hand, the reinforcing piece 2 is a pair of left and right members extended from the distal end portion of the coupling base 1 and is formed to support the lower surfaces of the left and right blades 14 of the suspension fitting 10 to reinforce the blades 14. (See FIG. 2). Then, fixing bolt insertion holes 3 are opened on the left and right side surfaces of the connecting base 1 or the reinforcing piece 2, and fixing bolts 5 are inserted into the fixing bolt insertion holes 3 to be fixed to the hanging metal fitting 10.

  The embodiment shown in FIGS. 1 to 6 shows an example in which a fixing bolt insertion hole 3 is opened in the connection base 1 (see FIG. 4). The fixing bolt insertion hole 3 is opened so as to overlap with a connection hole 16 below a connection hole 16 provided in a pair of upper and lower portions in the connection part 13 of the hanging metal fitting 10.

  Furthermore, the reinforcing piece 2 of this embodiment is formed so as to cover the outside of the lower metal fitting 17 that is bent and extended from the connecting base portion 1 and is suspended from the support portion 11 (see FIG. 4). In the example of illustration, the bending piece 2A which protrudes outside from the front-end | tip part of the connection base 1 is formed, and the reinforcement piece 2 is formed from this bending piece 2A.

  On the other hand, the base end surface 1A is bent and extended at the rear end portion of the side surface 1B of the connecting base portion 1 (see FIG. 1). A long bolt insertion hole 4 is opened in the base end face 1A (see FIG. 3). The long bolt insertion hole 4 is configured to insert the long bolt 21 of the reinforcing metal fitting 20 (see FIGS. 5 and 6).

  In the present invention, the reinforcing metal fitting 20 is a reinforcing metal fitting 20 that is locked to the construction material P and connected to the connecting portion 13 of the hanging metal fitting 10 with a long bolt 21. In the example of illustration, the reinforcement metal fitting 20 of the type latched to H-shaped steel (refer FIG. 5) and the reinforcement metal fitting 20 of the type latched to an angle are shown (refer FIG. 6). These reinforcing brackets 20 are used in combination with the reinforcing bracket of the present invention as necessary. The reinforcing bracket 20 of the type that is locked to the H-shaped steel is configured to bend and lock the end of the long bolt 21 where the thread is not formed to the H-shaped steel. (See FIG. 5). On the other hand, the reinforcing bracket 20 of the type that is locked to the angle is one in which a long bolt 21 is connected to a locking plate 22 that is locked to the upper end of the angle (see FIG. 6). In addition, the conventional reinforcement metal fitting 20 is not restricted to the example of illustration, The other connection metal fitting 20 which uses the long volt | bolt 21 can also be used together.

  The embodiment shown in FIGS. 7 and 8 is provided with a connecting base 1 that covers the entire connecting portion 13 of the hanging bracket 10. The connection base 1 has a pair of fixing bolt insertion holes 3 that overlap with a pair of upper and lower connection holes 16 opened in the connection portion 13 (see FIG. 8). In the illustrated example, the type of reinforcing metal fitting 20 that locks to the angle is used together (see FIG. 7), but it is also possible to use it with other connecting metal fittings 20 or without using the reinforcing metal fitting 20 together. . In addition, the connecting base 1 shown in FIG. 7 selects one of the upper and lower pair of fixing bolt insertion holes 3 and connects the fixing bolt 5, but connects the fixing bolt 5 to both the fixing bolt insertion holes 3. In this case, a higher fixing force can be obtained.

  In the embodiment shown in FIGS. 9 and 10, the reinforcing piece 2 is formed between the lower bracket 17 suspended from the support portion 11 and the support portion 11 (see FIG. 9). Further, a support piece 2B that is brought into contact with the lower surface of the blade 14 from the upper end edge of the support body 2 is bent to increase the support area to the blade 14 (see FIG. 10). And the fixing bolt insertion hole 3 is formed in the position which overlaps with the connecting hole 18 opened by the support part 11, and it connects with the fixing bolt 19 (refer FIG. 9). By carrying out like this, the lower metal fitting 17 and the reinforcement piece 2 can be connected integrally. In the illustrated example, the conventional reinforcing metal fitting 20 is used (see FIG. 9), but it is also possible to use it with other reinforcing metal fittings 20 or without using the reinforcing metal fittings 20 together.

  In the reinforcing metal fitting of the present invention, it is explained that it is mainly mounted on the hanging metal fitting 10 fixed to the horizontal protrusion P1 of the construction material P. However, the mounting position of the reinforcing metal fitting of the present invention is not limited to this example. Any location where the suspension bracket 10 can be fixed is acceptable, 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 projection part Q Hanging bolt 1 Connection base part 1A Base end face 1B Side face 2 Reinforcement piece 2A Bending piece 2B Support piece 3 Fixing bolt insertion hole 4 Long bolt insertion hole 5 Fixing bolt 10 Suspension fitting 11 Support part 12 Crimping part 13 Connecting portion 14 Blade 15 Tightening bolt 16 Connecting hole 17 Lower bracket 18 Connecting hole 19 Fixing bolt 20 Reinforcing bracket 21 Long bolt 22 Locking plate

Claims (3)

Attach to the hanging bracket that is locked to the horizontal projection of the construction material using the shape steel, and in the reinforcing bracket for the hanging bracket that strengthens the support strength of the hanging bracket,
The hanging bracket is formed by integrating a support part that supports the lower surface of the horizontal protrusion part, a crimp part that is provided with a fastening bolt that fastens and fixes the horizontal protrusion part on the support part, and the support part and the crimp part. It is a hanging bracket provided with a pair of left and right blades on the support portion that are substantially U-shaped on the side surface with the connecting portion to be connected, and contact the horizontal protrusion on the support portion,
A pair of U-shaped connecting bases that are connected so as to surround the outer surface of the connecting part of the suspension bracket, and a pair of reinforcements that support the lower surfaces of the left and right blades and extend from the front ends of the connecting bases A fixing bolt insertion hole is opened at a position where it overlaps with a connection hole opened in the connecting part or support part of the hanging metal fitting, and fixed to the hanging metal fitting with the fixing bolt inserted through the fixing bolt insertion hole. Configured to
A long bolt insertion hole is opened in the base end surface formed at the rear end portion of the connection base portion, and the long bolt that is locked to the construction material and connected to the connection portion of the hanging bracket is inserted into the long bolt insertion hole. Reinforcing metal fittings for hanging metal fittings, characterized by being configured as described above .   The fixing bolt insertion hole is formed at a position overlapping with a connection hole opened in the connection part of the suspension fitting, and the reinforcing piece is bent and extended from the connection base part and suspended from the support part. The reinforcement metal fitting for suspension metal fittings of Claim 1 formed so that the outer side of a lower metal fitting might be covered.   The fixing bolt insertion hole is formed at a position overlapping with a connection hole opened in the support portion of the suspension fitting, and is fixed by a fixing bolt inserted into the connection hole, and the reinforcing piece is attached to the lower fitting and the The reinforcement metal fitting for suspension metal fittings of Claim 1 comprised so that it might arrange | position between support parts.

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