KR20100018672A

KR20100018672A - nut

Info

Publication number: KR20100018672A
Application number: KR1020080077268A
Authority: KR
Inventors: 이재열; 이진열
Original assignee: 이재열; 이진열
Priority date: 2008-08-07
Filing date: 2008-08-07
Publication date: 2010-02-18

Abstract

The present invention relates to a nut that is very easy to fasten the bolt and can greatly improve the workability, in particular, provided with a fastening hole formed with a screw thread on the inner peripheral surface in the longitudinal direction, the inclined surface is formed on the outer peripheral surface of one end, a plurality in the longitudinal direction A nut member which is divided; An accommodation space for accommodating the nut member is formed therein, and a nut body formed at one side and the other side thereof so that the inlet and the outlet through which the bolt is introduced and drawn out communicate with the accommodation space; It relates to a nut comprising a; an elastic member provided in the receiving space of the nut body to elastically support the other side of the nut member.

Description

Nut {NUT}

In general, a nut is a female screw used for fastening and fastening mechanical parts by inserting it into a male screw. Nuts are usually hexagonal, and their parallel faces are tightened with a spanner. Special ones include butterfly nuts with a four-member, eight-member, or butterfly-shaped locking knob.

Conventionally, in order to fasten the nut to the bolt, it has to be rotated using a tool such as a spanner from the beginning until the fastening, and in particular, when the length of the bolt is long, there is a problem in that the fastening work is very inconvenient and the workability is greatly reduced.

The present invention for solving the problems of the conventional nut can be simply fastened to the bolt without the need to rotate the tool using a tool until the nut is fastened to the bolt as in the prior art as the workability of the operator The purpose is to provide a nut that can significantly improve the.

The present invention for achieving the above object is a nut that is screwed with the bolt,

A nut member having a fastening hole having a screw line formed on an inner circumferential surface thereof in a longitudinal direction, and an inclined surface formed on an outer circumferential surface of one end thereof, the nut member being divided in a plurality of longitudinal directions;

An accommodation space for accommodating the nut member is formed therein, and a nut body formed at one side and the other side thereof so that the inlet and the outlet through which the bolt is introduced and drawn out communicate with the accommodation space;

It is provided in the receiving space of the nut body provides an nut comprising a; an elastic member for elastically supporting the other side of the nut member.

In addition, one end of the fastening hole of the nut member is preferably formed to increase the inner diameter toward one end.

In addition, the nut member and the receiving space of the nut body is preferably formed with a slip preventing portion for preventing the nut member from rotating in the receiving space of the nut body.

In particular, the slip preventing portion is preferably formed of a fixing projection formed on the outer peripheral surface of the nut member, and the fixing groove is formed so that the fixing projection is inserted into the inner peripheral surface of the receiving space of the nut body.

In addition, the slip prevention portion is the first slip prevention surface formed of a flat surface formed on the inclined surface of the nut member, and the second slip prevention formed in the surface contact with the first slip prevention surface on the inner peripheral surface of the receiving space of the nut body It is good to be made of cotton.

Nuts of the present invention can be simply fastened to the bolts without the need to rotate using a tool from the beginning until the nut is fastened to the bolt as in the prior art has the effect of greatly improving the workability of the operator.

Hereinafter, the nut of the present invention will be described in more detail with reference to Examples. The scope of the present invention is not limited to the following Examples.

1 is a perspective view schematically showing a nut as an embodiment of the present invention, Figure 2 is a longitudinal cross-sectional view showing a longitudinal cross-sectional view along the line A-A of Figure 1, Figure 3 is a cross-sectional view showing a cross-sectional view along the line B-B.

Nuts 10 of the present invention is a plurality of nut member 110, as shown in Figs. 1 to 3, the nut body 130 to accommodate the nut member 110, and the nut member 110 is elastic It includes an elastic member 150 for supporting.

1 to 3, the nut member 110 includes a fastening hole 112 having a thread line 111 formed on an inner circumferential surface thereof in a longitudinal direction, and an inclined surface 113 is formed on an outer circumferential surface of one end thereof, Split 114 is made.

The screw thread 111 formed in the fastening hole 112 of the nut member 110 is screwed with the male screw thread (311 of FIG. 4) formed on the outer circumferential surface of the bolt (30 of FIG. 4). The inclined surface 113 formed on the outer circumferential surface of the nut member 110 is formed to have an outer diameter smaller toward one end, and the inclined surface 113 of the nut member 110 is also provided in the accommodation space 132 formed in the nut body 130. An inclined surface 133 is formed.

In addition, the nut member 110 is divided into a plurality in the longitudinal direction as shown in Figs. In FIG. 3, the nut member 110 is divided into two equal parts. However, the nut member 110 is not limited thereto, and the nut member 110 may be divided into three equal parts and four equal parts.

As the nut member 110 is formed by being divided into a plurality, when the plurality of unit nut members 110a and 110b of the nut member 110 are formed to have a gap therebetween, the nut member 110 is rotated from the beginning to the fastening to the bolt as in the prior art. The bolt can be inserted into the nut member 110 without the need for screwing.

In addition, the nut body 130 includes an accommodation space 132 in which the nut member 110 is accommodated, and an inlet 137 and an outlet 138 in which the bolt is introduced and drawn out on one side and the other side thereof. It is formed to communicate with the receiving space 132, respectively.

An inclined surface 133 corresponding to the inclined surface 113 of the nut member 110 is formed at one side of the accommodation space 132. The inclined surface 113 of the nut member 110 elastically supported by the elastic member 150 moves to one side of the accommodation space 132 along the inclined surface 133 of the accommodation space 132. At this time, the space of the fastening hole 112 of the nut member 110 becomes narrower, and if the bolt is inserted into the fastening hole 112 of the nut member 110, the nut member 110 is a bolt ( Screwed tightly into 30).

The inner diameter of the inlet 137 formed on one side of the nut body 130 is larger than the outer diameter of the bolt so that the bolt is easily inserted, and the inner diameter of the outlet 138 is also the outer diameter of the bolt so that the bolt is easily drawn out. It is formed larger than.

And the other side of the receiving space 132 of the nut body 130 is provided with an elastic member 150 for elastically supporting the nut member 110 to one side. The elastic member 150 is not particularly limited, such as the use of a compression spring, a leaf spring, and the like, as long as it can elastically support the nut member 110 to one side.

On the other hand, the other side 139 of the nut body 130, the elastic member 150 is supported and the outlet 138 is formed integrally with the nut body 130 in Figures 1 and 2, but separately It may be formed by a method such as screwing, bonding to the nut body 130.

4 is a view schematically showing a state in which the bolt 30 is inserted into the nut 10 and screwed together.

When the nut body 130 is pushed against the bolt 30 by applying an external force as shown in FIG. 4A, the nut member 110 moves to the other side, and the plurality of unit nut members 110 are opened to each other to the outside. 30 is inserted into the fastening hole 112 of the nut member 110, and when the external force is removed from the nut body 130 in the state, as shown in b) of FIG. 30) is fixed in a screwed state at a certain position.

As the nut body 130 is tightened using a tool, the nut member 110 accommodated in the receiving portion of the nut body 130 is pulled toward one side, that is, in the direction of the head portion 330 of the bolt 30. At the same time, as the inclined surface 113 of the nut member 110 moves to one side in contact with the inclined surface 133 of the nut body 130, the nut member 110 is more strongly screwed into the bolt 30. Combined.

On the other hand, the nut member 130 and the nut body 130 to prevent the nut member 110 does not rotate with the nut body 130 when the nut body 130 is rotated by using a tool. It is preferable that the slip prevention part 510 is formed in the accommodation space 132 of).

5 and 6 are longitudinal cross-sectional views showing the longitudinal cross-sectional state of the inclined surface 113 of the nut body 130 and the inclined surface 113 portion of the nut member 110.

The slip preventing part 510 has a fixing protrusion 512 formed on the outer circumferential surface of the nut member 110 as shown in FIG. 5, and the fixing protrusion 512 on the inner circumferential surface of the receiving space 132 of the nut body 130. ) May be configured to include a fixing groove 514 is inserted. Since the fixing protrusion 512 of the nut member 110 is inserted into the fixing groove 514 of the nut member 110, the nut member 110 rotates when the nut body 130 is rotated using a tool or the like. It is not slipped and rotates together with the nut body 130.

In addition, the slip preventing portion 510 is the first slip preventing surface 516 made of a flat surface formed on the inclined surface 113 of the nut member 110, as shown in Figure 6, the housing of the nut body 130 The second slip preventing surface 518 may be formed to be in surface contact with the first slip preventing surface 516 on the inner circumferential surface of the space 132. Since the first slip preventing surface 516 of the nut member 110 is in flat contact with the second slip preventing surface 518 of the nut body 130, the nut body 130 is rotated using a tool or the like. In this case, the nut member 110 does not slip and rotates together with the nut body 130, thereby preventing slipping of the nut member 110.

7 is a longitudinal sectional view schematically showing a state in which a bolt is in contact with the fastening hole 112 of the nut member 110.

Meanwhile, when the bolt is inserted into the inlet 137 of the nut body 130, the nut member 110 as shown in FIG. 7 so that the bolt can be easily inserted into the fastening hole 112 of the nut member 110. It is preferable to form one end 118 of the fastening hole 112 to gradually increase the inner diameter toward one end.

1 is a perspective view schematically showing a nut that is an embodiment of the present invention;

FIG. 2 is a longitudinal cross-sectional view illustrating a longitudinal cross-sectional state along the line A-A of FIG. 1,

3 is a cross-sectional view showing a cross-sectional state along the line B-B.

4 is a view schematically illustrating a state in which a bolt is inserted into a nut and screwed together.

5 and 6 are longitudinal cross-sectional views showing the longitudinal cross-sectional state of the inclined surface of the nut body and the inclined surface portion of the nut member.

7 is a longitudinal sectional view schematically showing a state where a bolt is in contact with a fastening hole of a nut member.

Claims

In a nut threaded with a bolt,

And an elastic member provided in the receiving space of the nut body to elastically support the other side of the nut member.

The nut of claim 1, wherein an inner diameter of the fastening hole of the nut member is increased toward one end.

The method of claim 1 or claim 2, wherein the nut member and the receiving space of the nut body is characterized in that the slip preventing portion for preventing the nut member from slipping and rotating in the receiving space of the nut body is formed. nut.

The nut of claim 3, wherein the slip preventing part comprises a fixing protrusion formed on an outer circumferential surface of the nut member, and a fixing groove formed so that the fixing protrusion is inserted into an inner circumferential surface of a receiving space of the nut body.

According to claim 3, wherein the slip preventing portion is formed so that the first slip preventing surface consisting of a flat surface formed on the inclined surface of the nut member and the first slip preventing surface in the inner circumferential surface of the receiving space of the nut body A nut comprising a second slip preventing surface.