JP3016073B2 - Steady bracket for cable rack - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable rack steady rest for use in fixing a main girder of a cable rack to a flange made of a steel material such as an angle material.

[0002]

2. Description of the Related Art Conventionally, a steady rest shown in FIG. 4 has been used as this kind of support. This metal fitting fixes the cable rack Q using the flange P1 of the steel material P. The metal fitting Q is fixed to the upper part of the main girder Q1 of the cable rack Q mounted on the flange P1.
The fixing bracket 20 locked to the lower surface of the bracket and the locking bracket 10 are connected by connecting bolts 30.

[0003]

However, in such a conventional steady rest, there is an inconvenience that stable fixing becomes difficult due to a change in the thickness of a flange of a steel material such as an angle material.

That is, since the fixing bracket used for the conventional steady rest is formed so that the fixing bracket is horizontal when it is fixed to the flange P having a thickness of the reference dimension, the thickness of the flange is equal to the reference dimension. If it is different from this, the fixing bracket will be inclined with respect to the flange. Then, the connecting bolt inserted into the fixing bracket is tightened while it is inclined, and the fixing force becomes unstable compared to the case where the connecting bolt is tightened in the vertical state, especially in places with a lot of vibration or earthquake. He was worried about his fixation.

Accordingly, the present invention has been made to solve the above-mentioned problem, and the connecting bolt can be always connected in a vertical state even if the thickness of the flange of the steel material changes, and a stable fixing force can be obtained. It is an object of the present invention to provide a cable rack steady rest capable of maintaining the above.

[0006]

In order to achieve the above-mentioned object, a first means of the present invention is a mechanism for locking an upper part of a main girder Q1 of a cable rack Q mounted on an upper surface of a flange P1 of a steel material P. A cable rack steady rest is provided for connecting the fastener (1) and the fixture (2) locked to the lower surface of the flange (P1) with the connecting bolt (3). The fixing member 2 is bent into a circular arc on the side surface, and a fixed body 2A that comes into contact with the lower end of the locking metal member 1 from the lower surface of the flange P1 and a connecting bolt 3 that is opened substantially in the center of the fixed body 2A and vertically inserted. Slotted bolt adjustment hole 2B
And a locking claw 2C provided at one end of the fixed body 2A and locked at a lower end of the locking fitting 1.
B is perforated in a long hole shape along the bending direction of the fixed body 2A,
Even when the fixing angle of the fixed body 2A is different, the lower end of the connection bolt 3 inserted into the bolt adjustment hole 2B is always connected vertically downward. The locking claw 2C includes a supporting piece 2Ca bent substantially horizontally along a connecting piece 1A bent substantially horizontally from the lower end of the locking metal fitting 1, and a connecting piece 1A from the supporting piece 2Ca.
And a locking piece 2Cb standing upright so as to be locked to the side surface of.

According to the present invention, the curved shape of the fixed body 2A and the bolt adjusting holes 2B formed in a long hole along the curved direction absorb the inclination angle of the fixed body 2A and connect the connecting bolt 3 with the bolt. Connect vertically.

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings. The main configuration of the present invention includes a lock 1, a fixing 2, and a connecting bolt 3.

The locking metal fitting 1 is a metal fitting for locking the main girder Q1 of the cable rack Q mounted on the upper surface of the flange P1 of the steel material P, and has a substantially U-shaped engagement with the upper part of the main girder Q1. Stop piece 1
A substantially L-shaped connecting piece 1A extending from B to abut on the upper surface of the flange P1 is extended. Then, a flange P1 is sandwiched and fixed between the connecting piece 1A and a locking piece 1B described later.

The fixing fitting 2 is locked on the lower surface of the flange P1 and is connected to the above-mentioned locking fitting 1 by a connecting bolt 3. The fixing fitting 2 further includes a fixing body 2A and a bolt adjusting hole 2B.
And a locking claw 2C.

The fixed rest 2A is formed by bending a band-shaped plate into a circular arc on the side and abutting the lower end of the locking member 1 from the lower surface of the flange P1. One of the ends of the curved fixed body 2A is connected to the flange P1. The other abuts against the lower surface, and the other abuts against the lower surface of the connecting piece 1 </ b> A and is pressed by the contracting force of the connecting bolt 3.

The bolt adjustment hole 2B is formed in a substantially central portion of the fixed body 2A, and is formed in a long hole shape along the bending direction of the fixed body 2A. The bolt adjusting hole 2B is configured such that the connecting bolt 3 inserted into the bolt adjusting hole 2B is always vertical even if the fixing angle of the fixing rest 2A is different. That is, FIG. 2 is a diagram showing a change in the position of the fixing body 2A and the bolt adjustment hole 2B when the thickness of the flange P1 changes, and the flange P1 becomes thicker in the order of (a), (b), and (c). However, in each case, it can be seen that the connection bolt 3 inserted into the bolt adjustment hole 2B is oriented vertically. This is, as shown in FIG. 3, the curved shape of the fixed body 2A and the bolt adjustment hole 2B formed in a long hole along the curved direction.
Are caused by absorbing the inclination angle of the fixed body 2A.

The locking claw 2C is provided at one end of the fixed body 2A and is locked to the lower end of the locking fitting 1. The locking claw 2C is further formed by a support piece 2Ca and a locking piece 2Cb. Become.
The support piece 2Ca is bent substantially horizontally along the connection piece 1A bent substantially horizontally from the lower end of the locking fitting 1, and supports the lower surface of the connection piece 1A. On the other hand, the locking piece 2Cb stands upright from the support piece 2Ca and locks to the side surface of the connecting piece 1A.

The connecting bolt 3 is a bolt for connecting and fixing the locking fitting 1 and the fixing fitting 2 via the flange P1.
It is always tightened vertically in the bolt adjustment hole 2B. The connection bolt 3 in the illustrated example is provided with a square root 3A at a portion that is in line with the bolt adjustment hole 2B, and the square root 3A slides along the bolt adjustment hole 2B. This corner root 3A prevents idling during tightening. In the drawing, the tightening force is increased by using a seat nut for the connection nut 4, but the shape of the connection nut 4 can be freely selected.

[0015]

According to the present invention, the above-mentioned configuration achieves the original object.

That is, even if the thickness of the flange of the steel material changes, the connecting bolts can always be connected in a vertical state. As a result, the connecting bolt 3
0 can maintain a stable fixing force without inclination. In addition, since the fixed body 2A has a circular arc shape on the side and the connecting bolts 3 are vertically connected, the external shape becomes stable.

Further, since the locking claw 2C ensures the connection between the locking fitting 1 and the fixing fitting 2, it is possible to prevent a displacement during use, and particularly to prevent the fixing force from being used in a place with much vibration or an earthquake. Was also eliminated.

As described above, according to the present invention, even if the thickness of the flange of the steel material changes, the connecting bolts can always be connected in a vertical state, and various effects such as a stable fixing force can be maintained. Play.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a use state of the present invention.

FIG. 2 is a side view showing a change in the position of a fixing body and a bolt adjustment hole when the thickness of a flange changes.

FIG. 3 is a conceptual diagram showing the relationship between the thickness of a flange and the position of a fixed body.

FIG. 4 is a side view showing a mounting state of a fixing bracket used in a conventional steady rest.

[Explanation of symbols]

 P Steel material P1 Flange Q Cable rack Q1 Main girder 1 Locking bracket 1A Connecting piece 2 Fixing metal 2A Fixed body 2B Bolt adjusting hole 2C Locking claw 2Ca Supporting piece 2Cb Locking piece 3 Connection bolt 3A Square root 4 Connection nut 10 Lock Bracket 20 Fixing bracket 30 Connecting bolt

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-51-73728 (JP, A) JP-A 55-102409 (JP, U) JP-A 51-80563 (JP, U) JP-A 57-1024 121502 (JP, U) Fully open sho 59-81809 (JP, U) Fully open sho 60-137216 (JP, U) Fully open sho 61-142913 (JP, U) Fully open, 3-72111 (JP, U) Registered utility model 3003624 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H02G 3/00 301

Claims (1)

(57) [Claims] An anti-swaying bracket for connecting a locking bracket for locking an upper part of a main girder of a cable rack placed on an upper surface of a flange of a rope and a fixing bracket for locking the lower surface of the flange with a connecting bolt. a is, the fixing bracket is a fixing body for crimping is bent to a side arc shape from the underside of the flange at the lower end portion of the anchor fitting, through which the perforated in by connecting bolts to the substantially central portion of the fixed body in a vertical shape A bolt adjusting hole having a long hole shape, and a locking claw provided at one end of the fixing body and locking with a lower end of the locking metal fitting, the bolt adjusting hole has a long hole along the bending direction of the fixing body. In the cable rack steady rest , the lower end of the connecting bolt inserted into the bolt adjustment hole is always connected vertically downward even if the fixing angle of the fixing bracket is different. Substantially horizontal along the connecting piece bent approximately horizontally from the lower end of the fastener And a locking piece erected so as to lock the supporting piece from the supporting piece to the side surface of the connecting piece.