KR20110046071A

KR20110046071A - Anchor bolt

Info

Publication number: KR20110046071A
Application number: KR1020090102900A
Authority: KR
Inventors: 기세진
Original assignee: 기세진
Priority date: 2009-10-28
Filing date: 2009-10-28
Publication date: 2011-05-04

Abstract

PURPOSE: A set anchor bolt is provided to prevent the rotation of a bolt when coupling a nut by employing an idle prevention unit on a bolt head and a socket. CONSTITUTION: A set anchor bolt comprises a bolt(105), a socket(108), and an idle prevention unit(110). The bolt has an angled head(102) on an end thereof which is inserted in a mounting hole formed in a wall, a shaft part(103), and a thread part(104). The socket is formed with a plurality of slots(107) in the radial direction so that the diameter of the socket is extended by the head which is pulled with a nut(106) coupled to the thread part and the socket is tightly fitted to the mounting hole. The idle prevention unit is provided on the bolt and the socket in order to prevent idling of the bolt when coupling the bolt with the nut.

Description

Set anchor bolt {ANCHOR BOLT}

The present invention relates to a set anchor bolt, and more particularly, to the provision of an improved set anchor bolt for fixing the bolt and the cap having an inclined head so as not to be separated from the wall surface.

Set anchor bolt is to fix the bolts for fastening to the wall to install the finishing material such as stone or metal plate on the wall of the building or structure that is constructed of concrete, or to install additional structures such as signboard.

The set anchor bolt as described above is developed and used in a variety of types, the configuration of a representative set anchor bolt of which will be described with reference to FIG.

The set anchor bolt 1 has a bolt 3 having the inclined head 2 inside (located inside the concrete at the time of construction) and a socket 5 having a slot 4 formed therein to provide easy expansion. )

The set anchor bolt as described above forms a mounting hole with a diameter enough to insert the head on the wall surface made of concrete, and inserts the mounting hole by hammering a bolt coupled to the socket.

The bolt inserted into the mounting hole as described above, the bracket is coupled and then the nut is tightened to tighten the nut to increase the diameter of the socket while the inclined head is pulled, and the socket with the enlarged diameter is coupled with the mounting hole so that the anchor bolt is walled. It can be fixed in a solid state.

In the prior art as described above, when the bolt is inserted into the mounting hole and tightened with a nut to enlarge and fix the socket, the inclined head is inserted into the slot formed at the rear of the socket, and the diameter is enlarged to fix the mounting hole. Since the anchor bolt is not firmly inserted into the mounting hole or the coupling between the head and the socket can not be made, it becomes impossible to mount the anchor bolt.

This is because when the mounting hole is formed larger than the diameter of the socket, the socket and the mounting hole do not maintain a close state, and thus the socket is pulled to the outside together with the bolt which is drawn out when the bolt and the nut are fastened, and the mounting hole is not in close contact with the mounting hole.

In addition, when the socket and the head is not forcibly coupled when the anchor bolt is driven into the mounting hole, when the nut is tightened, the head is rotated together with the nut, and thus the normal fastening cannot be made.

In particular, when the coupling between the head and the socket is not combined, the socket cannot be held by the socket when the nut is fastened as mentioned above, and thus the coupling cannot be performed. It is impossible to expand in the direction of the mounting hole by expanding the diameter because it is impossible to mount in a solid state.

This is because a means for preventing the rotation by increasing the coupling force to the head and the socket provided to be inclined to each other is not taken, and this causes the anchor bolts are poorly mounted and also increases the fatigue of the operator who has to perform repetitive work. There are a number of problems, such as being caused.

Accordingly, in the present invention, as invented to solve the above problems, the inclined head is formed inside the insertion hole formed in the wall, and the bolt is provided by forming the shaft and the screw to the outside of the head, and The bolt has a set anchor bolt consisting of a socket coupled to form a plurality of slots on the inside radially in close contact with the mounting hole while the diameter is expanded by the head pulled out by the nut is fastened to the screw portion;

In order to prevent the bolts from idling when tightening the bolts with nuts, the bolts and sockets are further provided with idling prevention means, so that the anchor bolts do not need excessive force to be mounted on the wall, thereby providing ease of mounting. It is possible to reduce the fatigue of the worker while being able to do so.

The present invention works by making the head constituting the anchor bolt and the means for preventing the rotation of the bolt in the socket connected to the head to prevent the bolt from rotating when tightening the nut to facilitate the mounting of the anchor bolt It is an invention having various effects, such as increasing the progress of and reducing the fatigue of the worker, as well as increasing the quality of the set anchor bolt to increase the external competitiveness.

Hereinafter, with reference to the accompanying drawings will be described a preferred configuration and operation of the present invention for achieving the above object.

1 is a perspective view of an exploded view showing a set anchor bolt to which the technique of the present invention is applied, FIG. 2 is a cross-sectional view taken along line A-A of the set anchor bolt to which the technique of the present invention is applied, and FIG. Sectional view taken along line B-B of an applied set anchor bolt, FIG. 4 is an exploded perspective view showing two examples of a set anchor bolt to which the technique of the present invention is applied, and FIG. 5 is a three example of a set anchor bolt to which the technique of the present invention is applied. 6 is an exploded perspective view illustrating four sets of anchor bolts to which the technique of the present invention is applied.

The conventional set anchor bolt 100 is formed with an inclined head 102 is inserted into the mounting hole 101 formed on the wall surface, the shaft portion 103 and the threaded portion 104 to the outside of the head 102 ) Is provided with a bolt (105).

The bolt 105 has a plurality of slots radially inward so as to be firmly in contact with the mounting hole 101 while the diameter thereof is enlarged by the head 102 pulled outward by the nut 106 fastened to the threaded portion 104. Combination of the sockets 108 forming the groove 107 is configured.

In the present invention, when the bolt 105 is fastened to the nut 106, the bolt 105 and the socket 108 further includes an idle prevention means 110 to prevent the bolt 105 from idling. It features.

The idle prevention means 110 forms a serration 111 having a tooth shape on the outer surface of the head 102 constituting the bolt 105 and the inner surface of the inner portion of the socket 108 to be engaged with each other by the nut 106. It is possible to prevent the bolt 105 from idling against the socket 108 when tightening the bolt 105.

As two examples of the idle prevention means 110, one or more recessed stop grooves 112 are formed on the outer surface of the head 102 constituting the bolt 105, and the inner side of the socket 108 The stopper 113 protrudes in the direction of the stop groove 112 so as to be engaged with the stop groove 112, so that when the bolt 105 is fastened to the nut 106, the bolt 105 is held against the socket 108. Prevent idling.

As three examples of the idle prevention means 110, the stop groove 114 is formed over the shaft portion 103 and the screw portion 104 constituting the bolt 105, the stop groove 114 and the socket 108 The stopper 115 may be formed to protrude in the direction of the stop groove 114 to be engaged to prevent the bolt 105 from idling against the socket 108 when the bolt 105 is tightened with the nut 106. Make sure

Positions of the stoppers 113 and 115 applied to the above 2 and 3 examples may be formed by being located inside the socket 108 as much as possible, and the shape of the stoppers 113 and 115 makes it easy to insert the socket 108 into the bolt 105. It is preferable that the end portions of the stoppers 113 and 115 be inclined from the inner side to the outer side so that the end portions of the stoppers 113 and 115 are easily separated from each other.

As four examples of the idle prevention means 110, the locking projection 116 is formed to protrude in the intermediate position of the head 102 constituting the bolt 105, the locking projection 116 on the inner end of the socket 108. By forming a locking groove 117 that can be engaged with the nut 106 to prevent the bolt 105 from idling with respect to the socket 108 when the bolt 105 is fastened.

The locking protrusion 116 is formed to be inclined toward the head 102 at the inner end of the head 102 inclined toward the bolt 105 in one direction and the inner side of the shaft 103 of the bolt 105. To be formed in the horizontal portion 120 formed between the two inclined surfaces 119.

Of course, the diameter (D) of the horizontal portion 120 is almost the same as the inner diameter of the socket 108 to exclude the phenomenon that the flow easily or separated in the engaging projection 116 and the engaging groove 117 is coupled. It would be desirable to be able to.

The inner end surface 124 of the head 102 to which the technique of the present invention is applied further forms a recessed groove 125 to remain inside the mounting hole 101 when the anchor bolt 100 is inserted into the mounting hole 101. By introducing a foreign material to facilitate the insertion of the anchor bolt (100).

Referring to the operation of the set anchor bolt 100, the technique of the present invention as described above is as follows.

First, the socket 108 is coupled to the bolt 105 constituting the set anchor bolt 100, and then the anchor bolt 100 is inserted into the mounting hole 101 formed on the concrete wall and then deeply driven.

As described above, when the anchor bolt 100 is inserted into the mounting hole 101, foreign substances such as cement powder generated in the process of forming the mounting hole 101 are formed in the inner end surface 124 of the head 102. Since it will be entered into the anchor bolt 100 helps to be easily inserted into the mounting hole (101).

In this state, after the nut 106 is coupled to the threaded portion 104 of the bolt 105, the nut 106 is continuously tightened by using a tool, and the outer surface of the socket 108 is fitted into the mounting hole 101 to move. In a poor state, the head 102 of the bolt 105 is pulled outward by the nut 106 to which it is fastened.

Therefore, as the inclined head 102 penetrates toward the inner end of the socket 108, the diameter of the socket 108 is enlarged so that the socket 108 remains firmly coupled with the mounting hole 101. The mounting object is to be fixed to the bolt 105 exposed to the outside.

Thus, when mounting the anchor bolt 100, in the present invention, since the idle prevention means 110 is further sought the nut 106 even if the head 102 and the socket 108 is not in a tightly coupled state (hard) Tighten the bolt 105 is able to dig in the direction of the socket 108 without rotating with the nut 106.

That is, in the case of the serration 111 constituting the idle prevention means 110 is formed on the outer surface of the head 102 and the inner surface of the socket 18, the bolt 105 is prevented from idling because they are engaged with each other.

In addition, when the stop grooves 112 and 114 are formed in the head 102 or the bolt 105, the stoppers 113 and 115 formed in the socket 108 are coupled with the stop grooves 112 and 114 so that the bolt 105 is idling. When the locking projection 116 is formed in the head 102, the bolt 105 is coupled to the locking groove 117 formed in the socket 108 to tighten the nut 106. It is prevented from rotating by being able to be fastened easily.

The present invention prevents the bolt 105 is coupled by the socket 108 and the idle prevention means 110 to prevent idling when tightened with the nut 106, so as to hit the anchor bolt 100 strongly to the mounting hole 101 It can be pushed in smoothly without the hassle of putting it in or tapping lightly using a tool such as a conventional spanner used to tighten the nut 106.

As described above, the anchor bolt 100 does not need excessive force to be mounted on the wall, so that the anchor bolt can be easily installed, thereby reducing the fatigue of the worker. .

1 is a perspective view of an exploded state showing a set anchor bolt to which the technique of the present invention is applied.

2 is a cross-sectional view taken along line A-A of the set anchor bolt to which the technique of the present invention is applied.

3 is a cross-sectional view taken along line B-B of a set anchor bolt to which the technique of the present invention is applied.

Figure 4 is an exploded perspective view showing two examples of a set anchor bolt to which the technique of the present invention is applied.

5 is an exploded perspective view showing three examples of a set anchor bolt to which the technique of the present invention is applied.

Figure 6 is an exploded perspective view showing four examples of a set anchor bolt to which the technique of the present invention is applied.

Figure 7 is a block diagram showing a set anchor bolt to which the prior art is applied.

* Description of the symbols used in the main parts of the drawings *

100; Anchor bolt

102; head

106; nut

108; socket

110; Idle prevention means

Claims

Bolts 105 formed by inclined head 102 to be inserted into the mounting hole 101 formed in the wall surface, the shaft portion 103 and the threaded portion 104 to the outside of the head 102 is provided Wow;

The bolt 105 has a plurality of slots radially inwardly in contact with the mounting hole 101 while the diameter thereof is enlarged by the head 102 pulled outward by the nut 106 fastened to the threaded portion 104 ( In the set anchor bolt 100 consisting of a socket 108 is formed to form a 107;

When the bolt 105 is fastened to the nut 106, the bolt 105 and the socket 108 to further prevent the idle rotation of the bolt 105, characterized in that it further comprises Set anchor bolts.

The method of claim 1;

The idle prevention means 110 is a set anchor bolt, characterized in that configured to engage with each other by forming a tooth-shaped serration (111) on the outer surface of the head 102 and the inner surface of the inner portion of the socket (108).

The method of claim 1;

The idle prevention means 110 includes a stop groove (112, 114) formed over the outer surface or the shaft portion 103 and the screw portion 104 of the head (102);

Set anchor bolt, characterized in that consisting of a stopper (113, 115) protruding in the direction of the stop groove 112 in the inner portion of the socket 108 so that it can be engaged with the stop groove (112, 114).

The method of claim 1;

The idle prevention means 110 and the engaging projection 116 is formed to protrude in the intermediate position of the head 102,

A set anchor bolt, characterized in that consisting of a locking groove 117 formed on the inner end of the socket 108 to be engaged with the locking projection 116.

The method of claim 1;

The inner end surface 124 of the head 102 is characterized in that the inlet groove 125 is further formed to help the insertion of the anchor bolt 100 by introducing foreign matter remaining in the interior of the mounting hole 101 Set anchor bolts.

The method of claim 3;

The stoppers 113 and 115 may be easily inserted into the socket 108 to the bolt 105, and the end portions of the stoppers 113 and 115 may be inclined from the inner side to the outer side so that the socket 108 is not easily separated in the outer direction after the insertion. Set anchor bolts.

The method of claim 4;

The locking projection 116 is one inclined surface 118 is formed to be inclined toward the bolt 105 at the inner end of the head 102;

A set anchor bolt, characterized in that formed on the horizontal portion (120) located between the two inclined surface 119 to be inclined toward the head 102 at the inner end of the shaft portion (103) of the bolt (105).