JP3203361U - Tying bracket - Google Patents

Abstract

An object of the present invention is to provide a tie fitting that is easy to work and reduces the number of work steps when extending or branching a suspension bolt. A tie fitting for fastening a suspension bolt P and a slicing bolt Q having the same diameter and the same thread pitch is disclosed. The tying metal fitting comprises a metal fitting body 1 and a push bolt 20. The metal fitting body 1 has a U-shaped surface portion 2 with which the side surface in the length direction of the suspension bolt P or the cutting bolt Q abuts, and a through-hole 7 facing the U-shaped surface portion 2 and having an internal thread on the inner periphery. The opposing surface portion 3, and the U-shaped surface portion 2 and the first wall portion connecting the opposing surface portion 3. A push bolt 20 is screwed into the through-hole 7 with respect to the suspension bolt P and the slicing bolt Q that are juxtaposed between the U-shaped surface portion 2 and the opposing surface portion 3 in a state where the threads are engaged with each other over the length direction. These are fixed in pressure contact toward the U-shaped surface portion 2. [Selection] Figure 2

Description

The present invention relates to a tie fitting that extends or branches a suspension bolt.

When installing electrical equipment such as equipment for installation on the ceiling or behind the ceiling, suspend the equipment with suspension bolts. It may be necessary to extend or branch existing suspension bolts by adding or changing equipment for facilities. In such a case, welding to the suspension bolt is often performed, but the welding operation cannot be performed when there is no welding work space or when fire is strictly prohibited in the work in the ceiling. Instead of welding, a long nut may be screwed onto the tip of the suspension bolt, and a new dimensioning bolt may be screwed in from the other side of the long nut. Moreover, in the example shown by patent document 1, an iron plate is made into a loop shape, a hole is penetrated to the opposing surface, respectively, and a hanger bolt and a new cutting bolt are inserted and extended, respectively. In general, a cut bolt is used as the suspension bolt. A chopping bolt is a screw without a head, also called a long screw or a full screw.

Japanese Utility Model Publication No. 3-130113

In both the extension by the long nut and the extension by Patent Document 1, the suspension bolt must be screwed on one side, and the cutting bolt must be screwed separately on the other side. Moreover, it cannot branch at any place.

Therefore, an object of the present invention is to provide a tie fitting that is easy to work and reduces the number of work steps when extending or branching the suspension bolt.

In order to achieve the above-mentioned object, the present invention provides a tie fitting for fastening a suspension bolt and a slicing bolt having the same diameter and the same thread pitch,
A U-shaped surface portion with which the side surface in the length direction of the suspension bolt or the cutting bolt abuts, and a through hole facing the U-shaped surface portion and having an internal thread on the inner periphery is opened toward the U-shaped surface portion. A metal fitting body composed of a facing surface portion and a first wall portion connecting the U-shaped surface portion and the facing surface portion;
The U-shape is screwed from the through hole into the suspension bolt and the dimensioning bolt that are juxtaposed between the U-shaped surface portion and the opposing surface portion in a state in which the threads are engaged with each other over the length direction. And a push bolt that is pressed against and fixed to the surface portion.

  According to the present invention, the screw thread of the suspension bolt and the dimensioning bolt is engaged with each other in the length direction, and the tie fitting acts so as to maintain this, so that it can be firmly fastened. There is.

It is a figure which shows the tying metal fitting of an Example. It is a perspective view which shows a mode that a tying metal fitting is used. It is a perspective view which shows a mode that a tying metal fitting is used. It is a perspective view which shows another example of use. It is a figure which shows the tying metal fitting by another Example. It is a figure which shows the tying metal fitting by another Example.

Suspension bolts are suspended from the ceiling structure and suspended from the ceiling structure to suspend equipment and the like. In the following description, both the suspension bolts and the dimensioning bolts connected to the suspension bolts have the same diameter and screws. It is assumed that the mountain consists of chopping bolts with the same pitch.

FIG. 1 shows a tie fitting according to this embodiment. The tying metal fitting comprises a metal fitting body 1 and a push bolt 20. 1A is the left side of the metal fitting body 1, FIG. 1B is the front of the metal fitting body 1, FIG. 1C is the right side of the metal fitting body 1, FIG. 1D is the plane of the metal fitting body 1, FIG. The bottom surface of the metal fitting body 1 is shown. FIG. 1G shows a push bolt 20. The metal fitting body 1 is formed from a strip-shaped metal plate. The strip-shaped metal plate has a cross section that rises from the end b toward the center a, and forms continuous peaks in the length direction. This is for strengthening the mechanical structure, and is not particularly essential. The metal fitting body 1 is bent so that this peak is located on the outside, and only a distance L1 corresponding to at least twice the diameter of the suspension bolt or the dimensioning bolt (hereinafter collectively referred to as the diameter of the dimensioning bolt). A U-shaped surface portion 2 and a facing surface portion 3 which are separated from each other are formed.

The U-shaped surface portion 2 abuts against the side surface in the length direction of the suspension bolt or the dimensioning bolt, and a distance L2 corresponding to the diameter of one dimensioning bolt is provided on both sides of the U-shaped surface portion 2. The wall 4 (first wall) and the wall 5 (second wall) are continuous apart. The wall 4 is continuously connected to the U-shaped surface 2 and the facing surface 3. The wall portion 5 prevents the suspension bolt or the slicing bolt from falling off. The wall portion 5 is preferably formed continuously by bending a band-shaped metal plate from the U-shaped surface portion 2, but when the band-shaped metal plate has a cross-section that rises toward the center a, such processing is performed. Can be attached by welding separately. A space 6 is provided at the tip of the tip t of the wall portion 5 so as to be separated from the facing surface portion 3 by a distance L3 corresponding to at least twice the diameter of the cutting bolt. Further, the distance L4 from the bottom s of the U-shaped surface 2 to the tip t of the wall 5 is a distance corresponding to at least 0.5 times the diameter of the hoisting bolt (about 1.5 times in the drawing). It is. A through hole 7 having an inner peripheral surface provided with a female screw is opened in the facing surface portion 3. The direction of the through hole 7 is directed to the bottom s of the U-shaped surface portion.

FIG. 2 shows a state in which a tie fitting is used.
In FIG. 2A, a metal fitting body 1, a push bolt 20, and a nut 21 that is screwed to the push bolt 20 are prepared with respect to a suspension bolt P suspended from the ceiling. In FIG. 2B, the suspension bolt P is accommodated on the inner surface of the U-shaped surface portion 2 through the space 6. In FIG. 2C, the dimensioning bolt Q to be added via the space 6 is inserted between the U-shaped surface portion 2 and the facing surface portion 3, and the dimensioning bolt Q and the suspension bolt P are juxtaposed along the length direction. Since the dimensioning bolt Q is a dimensioning bolt having the same thread pitch as the suspension bolt P, the dimensioning bolt Q is in a state where the thread is engaged with the suspension bolt P. In order to maintain this state, the push bolt 20 is screwed into the through-hole 7 and the suspension bolt P and the cut bolt Q are pressed against the U-shaped surface portion 2. Since the thread of the suspension bolt P and the cutting bolt Q is engaged with each other in the length direction, it is firmly fixed. The nut 21 is a locking member for preventing the push bolt 20 from loosening from the through hole 7 and is not particularly essential.

FIG. 3 shows a state in which the fastening state of the cutting bolt Q and the suspension bolt P is further strengthened. Separately, a metal fitting body 1 'is prepared. Since the space 6 of the metal fitting body 1 ′ is provided at a distance L 3 corresponding to the diameter of two or more cutting bolts, the suspension bolt P and the cutting bolt Q are inserted through the space 6. In FIG. 3B, the dimensioning bolt Q is now arranged on the U-shaped surface 2 side of the metal fitting body 1 ', and the suspension bolt P and the dimensioning bolt Q are similarly fixed using the push bolt 20'.

FIG. 4 shows another example of use of the metal fitting body 1. In this example, a state in which the existing suspension bolt P is branched is shown. In FIG. 4A, the suspension bolt P is accommodated in the U-shaped surface portion 2 through the space 6. Prepare a cutting bolt R that is bent at a point r1 in the middle of the length direction so that the front and rear portions r2 and r3 form an acute angle, and a portion r2 of the cutting bolt R to be added via the space 6 is prepared. It inserts between the U-shaped surface part 2 and the opposing surface part 3, and juxtaposes it next to the suspension bolt P similarly to having demonstrated in FIG. Since the cutting bolt R is also a cutting bolt having the same thread pitch as that of the suspension bolt P, the threading bolt R is in a state where the thread is engaged with the suspension bolt P in a different manner. In FIG. 4B, in order to maintain this state, the push bolt 20 is screwed into the through hole 7 and fixed. Other equipment can be mounted using the portion r3.

FIG. 5 shows other types of metal fittings 10, 11, 12. In the figure, the same reference numerals are assigned to the components corresponding to the metal fitting body 1. The metal fitting body 10 shown in FIG. 5A has a distance L3 in the space 6 shorter than that of the metal fitting body 1 and is separated by a distance corresponding to 1.5 times or more the diameter of the cutting bolt. On the other hand, the distance L4 from the bottom s of the U-shaped surface portion 2 to the tip t of the wall portion 5 is a distance corresponding to 1.5 times or more the diameter of the dimension bolt of the suspension bolt. In the metal fitting body 10, it is difficult to apply a usage method for strengthening the fixing of the cutting bolt Q using the two metal fitting bodies 1 as shown in FIG. 3. However, according to the metal fitting body 10, there is an effect that the suspension bolt P and the cut bolt can be held more stably.

The metal fitting body 11 shown in FIG. 5B has a longer distance L3 in the space 6 than that of the metal fitting body 1, and is separated by a distance corresponding to the diameter of two or more cutting bolts. On the other hand, the wall portion 5 is omitted, and the distance L4 from the bottom s of the U-shaped surface portion 2 to the tip t of the U-shaped surface portion 2 is a distance corresponding to less than 0.5 times the diameter of the cutting bolt (the wall portion 5 Because there is no). If the distance L4 is not 0, the portion OH prevents the suspension bolt from dropping off. As described above, the U-shaped surface portion 2 only needs to have a portion OH that is bent from the bottom s of the U-shaped surface portion 2 toward the facing surface portion 3. In the metal fitting body 11, it is easy to work because it is prepared to accommodate the suspension bolt P and the cutting bolt. However, there is a possibility that the dimensioning bolt that is not on the U-shaped surface portion 2 side falls off.

5C and 5D, the metal fitting body 12 is arranged so that the facing surface portion 3 of the metal fitting body 11 is not perpendicular to the wall portion 4 but an acute angle θ1, and the direction of the through hole 7 is set to the bottom s of the U-shaped surface portion. The angle θ2 is changed to the direction toward the wall 4 side. According to the metal fitting body 12, the fear of dropping off the cutting bolt that is not on the U-shaped surface portion 2 side as compared with the metal fitting body 11 is reduced.

The metal fitting bodies 1, 10, 11, and 12 have the space 6, but the metal fitting bodies 13 and 14 described in FIG. 6 do not have the space 6. In the figure, the same reference numerals are assigned to the components corresponding to the metal fitting body 1. In FIG. 6A, the metal fitting body 13 has a U-shaped surface portion 2, a wall portion 4, an opposing surface portion 3, and a wall portion 5 that are continuous in this order in a cylindrical shape. When connecting the cut bolt Q to the suspension bolt P using the bracket body 13, if necessary, remove the device suspended from the suspension bolt P and pass it from the tip of the suspension bolt P to the bracket body 13. Must-have. However, since it is cylindrical, there is an effect that the strength is high. Since the peak of the band-shaped metal plate as seen in the metal fittings 1, 10, 11, 12 is not particularly required, the processing is easy. The metal fitting body 14 shown in FIG. 6B has a width w wider than that of the metal fitting body 13 and two or more through holes 7 in the width direction. According to the metal fitting body 14, there is an effect that it can be firmly fixed corresponding to FIG.

In each said Example, if the distance L1 of the U-shaped surface part 2 and the opposing surface part 3 is made into the length of three or more dimensioning bolts, three dimensioning bolts can be fixed in parallel. For example, in FIG. 4, there is an effect that three dimensioned bolts can be fastened to the same place so as to branch on both sides as well as on one side of the suspension bolt P.

In the said Example, the U-shaped surface part 2 does not need to be literally U-shaped, and may be V-shaped or polygonal. What is necessary is just to have the location which prevents the drop-off | omission of the suspending bolt or dimension cutting bolt hold | maintained inside the U-shaped surface part 2 at least.

1, 10, 11, 12 Metal fitting body 2 U-shaped surface portion 3 Opposing surface portion 4, 5 Wall portion 6 Space 7 Through hole 20 Push bolt 21 Nut P Suspension bolt Q, R Dimensional cutting bolt

Claims (5)

In a tie fitting that fastens a suspension bolt and a cutting bolt with the same diameter and the same thread pitch,
A U-shaped surface portion with which the side surface in the length direction of the suspension bolt or the cutting bolt abuts, and a through hole facing the U-shaped surface portion and having an internal thread on the inner periphery is opened toward the U-shaped surface portion. A metal fitting body composed of a facing surface portion and a first wall portion connecting the U-shaped surface portion and the facing surface portion;
The U-shape is screwed from the through hole into the suspension bolt and the dimensioning bolt that are juxtaposed between the U-shaped surface portion and the opposing surface portion in a state in which the threads are engaged with each other over the length direction. A tie fitting having a push bolt which is pressed against a surface portion and fixed in a tie state.
The metal fitting main body has a second wall portion continuous from the U-shaped surface portion at a distance corresponding to a diameter of a suspension bolt or a cutting bolt with respect to the first wall portion. The tying fitting according to 1.
The space of the space | interval equivalent to 1.5 times or more of the diameter of a suspension volt | bolt or a cutting bolt is vacated between the said 2nd wall part and the said opposing surface part. The tying bracket described.
The second wall portion is continuous with the facing surface portion, and the facing surface portion, the first wall portion, the U-shaped surface portion, and the second wall portion are continuous in a cylindrical shape. The tying fitting according to claim 2, characterized in that:
The first wall portion and the facing surface portion are continuous at an acute angle, and the direction of the through hole is directed to the direction closer to the first wall portion than the bottom of the U-shaped surface portion. The tie fitting according to claim 1, wherein