KR100614671B1 - Spanner - Google Patents

Abstract

The disclosed spanner relates to a spanner having a handle portion and a head portion having an opening formed at one end of the handle portion to loosen or tighten an object. The spanner includes a head portion adjacent to the user when the user grips with the right hand. One slide piece is slidably reciprocated between the objects and slidingly coupled to expand the sliding range so as to move outwardly from the head. Since the spanner of such a structure is provided with the slide piece which can be slid, it can provide the effect which can work continuously without removing a spanner even in a narrow space.

Spanner, slide

Description

Spanner}

1A and 1B show a conventional spanner,

2 is a perspective view showing a spanner according to an embodiment of the present invention;

3A to 3C are views illustrating an operating state of the spanner shown in FIG. 2, respectively.

4 is a view showing when the spanner shown in Figure 2 is applied to a round bolt,

5 is a view showing a spanner according to another embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

4, 5 ... bolt 100 ... spanner

110.Head 120.Handle

130 ... Slide piece 131a, 131b ... Fixing member

135 ... Slide groove 136 ... Turning

140 ... elastic member

The present invention relates to a work tool, and more particularly to a spanner used when tightening or loosening a bolt or nut.

In general, spanners are tools used to tighten or loosen fittings such as bolts and nuts, and are variously classified according to their size and shape.

As a spanner used when tightening or loosening such a bolt or nut, a structure as shown in FIGS. 1A and 1B has been generally employed.

Referring to FIG. 1A, in the spanner 1, a head part 2, which is a part to be fitted to the head of the bolt 4, is opened in one direction, and in one direction through the head part and the extended handle part 3. Alternatively, the bolt 4 is tightened or loosened by rotating the predetermined angle in the other direction.

However, such a conventional spanner 1 is inserted into the head portion 2 of the spanner 1 to the head of the bolt 4 and rotated by a predetermined angle through the handle portion 3, and then the bolt ( 4) the head part is removed, and the head part 2 of the spanner 1 is inserted into the bolt 4 again, which causes an inconvenient problem of repeated work.

As shown in FIG. 1B, when the head part 2 of the spanner 1 is refitted to the head of the bolt 4, the head part 2 of the spanner 1 is inserted into the bolt 4 by 120 °. Since the handle portion 3 of the degree is required to rotate, there is a problem inconvenient to work in a narrow space.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a spanner having an improved structure so as to continuously perform smooth work without removing the head of the spanner even in a narrow space.

Other objects and advantages of the invention will be described below and will be appreciated by the embodiments of the invention. In addition, the objects and advantages of the present invention can be realized by means and combinations indicated in the claims.

The present invention for achieving the above object relates to a spanner having a handle portion and a head portion formed with an opening at one end of the handle portion to loosen or tighten an object, when the user grabs with his right hand from the inside of the head portion. And a slide piece which is slidably reciprocated between the head portion and the object on an adjacent side of the user and is slidably coupled to expand the sliding range so as to move outwardly from the head portion.

Here, the slide piece may further include an elastic member for elastically biasing in the direction opposite to the opening direction of the head portion.

In addition, the elastic member is preferably any one selected from a coil spring or a leaf spring.

In addition, fixing members may be coupled to both ends of the elastic member so as to be fixed to the head portion and the slide piece.

On the other hand, one surface of the slide piece engaging with the object is preferably provided with a projection that can provide a frictional force.

Moreover, it is preferable that the said slide piece is a wedge shape which becomes wider toward an outer side.

In addition, an arc-shaped screw groove may be formed on the inner bottom of the head portion in the handle portion direction.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

Therefore, the embodiments described in the specification and the configuration shown in the drawings are only the most preferred embodiments of the present invention and do not represent all of the technical idea of the present invention, various equivalents that can cope with them at the time of the present application It should be understood that there may be variations and variations.

2 is a perspective view of a spanner according to an embodiment of the present invention.

Referring to the drawings, the spanner 100 according to the embodiment of the present invention has a handle portion 120 and an opening is formed at one end of the handle portion 120, the head portion 110 to loosen or tighten the object It is provided. Here, the head portion 110 is opened in the opening direction A so that the bolt 4 (see FIG. 3A), which is an object, is shaped to have a substantially '∪' shape, and the user may use the head portion 110. Rotate a predetermined angle in one direction or the other direction through the extended handle portion 120 to loosen or tighten the bolt.

Here, when the user of the inside of the head portion 110 is held by the user with the right hand, the adjacent side of the user, that is, when the user rotates the spanner 100 to the right as shown in FIG. In the B direction, reciprocating sliding between the head portion 110 and the object, through the slide groove 135 of the head portion 110 so that the sliding range is expanded to move outwardly from the head portion 110 One slide piece 130 coupled to the sliding is provided.

In addition, the slide piece 130 may further include an elastic member 140 for elastically biasing in a direction opposite to the opening direction A of the head portion 110, wherein the elastic member 140 may be a coil spring or It is preferable to use any one of the leaf springs.

Looking at the elastic member 140 in detail, the elastic member 140 is provided on one side of the slide piece 130 to move the slide piece 130 in the A direction which is the opening direction of the head portion 110 It is to be elastic bias, and to increase the adhesion of the object and at the same time to provide a restoring force to return to the original position.

The fixing member 131b is coupled to one end of the elastic member 140 to be fixed to the head 110, and the fixing member 131a is coupled to the other end of the elastic member 140. .

On the other hand, the slide piece 130 has a wedge shape that becomes wider toward the outside, and the projection 136 to effectively tighten or loosen the object by increasing frictional force on one surface engaged with the object in the slide piece 130. It is preferable to provide.

3A to 3C show the operation of the spanner having the above structure.

First, referring to FIG. 3A, a diagram illustrating a user's tightening of the bolt 4, which is an object, through the handle 120, and the bolt 4 of the slide piece 130 and the head part 110 of the spanner 100. It is a figure when it fits inward.

3B is a view illustrating a process of tightening the bolt 4 by inserting the bolt 4 inside the head part 110 by rotating the handle part 120 in a clockwise direction in the drawing.

Referring to the drawings, when the handle portion 120 rotates a predetermined angle in the clockwise direction, there is a certain gap between the bolt 4 and the head 110, the slide piece 130 and the head at the corner of the bolt (4) Each line 110 is in line contact.

At this time, the slide piece 130 tries to slide in the opening direction of the head portion 110 by the reaction of the rotational force of the handle portion 120. The slide piece 130 is in sliding contact with the head portion 110 and slides in the opening direction due to the rotational force of the bolt 4.

3C is a view illustrating a process of rewinding the handle by rotating the handle counterclockwise after tightening the bolt of FIG. 3B.

Referring to the drawings, when the spanner 100 is rotated counterclockwise through the handle part 120 to rewind, the slide piece 130 has the force of the elastic member 140 at the moment when the contact with the edge of the bolt 4 is released. After restoring in the anti-A direction, when it comes in contact with the next edge, as shown in the figure by the rotational force of the head portion 110, the sliding direction in the opening direction A.

That is, in the process of rewinding the spanner 100 of FIG. 3C, the slide piece 130 slid in the opening direction is returned to its original position in the opposite direction to the opening direction A of the head part 110 by the restoring force of the elastic member 140. And then it is pushed again in the opening direction while engaging the next corner, in this state by turning the spanner 100 clockwise it is possible to re-tighten as shown in Figure 3b.

4 is a view showing a case in which the present invention is used by applying a spanner when the object is a circular bolt.

Referring to the drawings, the shape of the inner bottom face of the head portion 110 of the spanner 100 in the direction of the handle portion is hollowed with an arc-shaped screw groove 111, and the circular bolt 5 is inserted into the head portion. After fitting to the bottom surface, the slide piece 130 is pulled out in the opening direction and then rotated in contact with the side of the bolt 5.

FIG. 5 is a view illustrating a spanner according to another embodiment of the present invention, wherein the spanner 100a removes protrusions of the contact surface between the slide piece 132 having the elastic member 140 and the head portion 110a facing the object. ).

Here, the spanner of the present invention can effectively work with the bolts of the object of the corrosive, hex, octagonal and round, the object of the corrosion, in addition to the wrench, the tool for tightening and loosening various bolts, such as monkey wrench, pipe wrench, etc. Application is possible.

The spanner configured and operated as described above is provided with a slide piece at the head part, and thus it is possible to improve the work efficiency since the work is continuously performed by tightening the bolt and rewinding the head without having to remove the head part and reinsert it. When removing the head part and inserting it back into the head of the bolt or nut, it is not necessary to rotate the handle part of about 120 ° necessary to contact the head of the bolt and the spanner head part, and work in the space of about 30 °. .

As described above, the spanner of the present invention provides the following effects.

First, when tightening or releasing the head of the bolt or nut, it can be rewinded continuously without removing the head of the spanner, so that the work can be performed quickly and efficiently.

Second, it is possible to work in a narrow space of about 30 °, so it is excellent in work efficiency, and the slide piece connected to the coil spring slides resiliently, so that the highly corroded bolts and hexagonal, octagonal and circular bolts can be easily attached and detached. Can be.

As mentioned above, although this invention was demonstrated by the limited embodiment and drawing, this invention is not limited by this, The person of ordinary skill in the art to which this invention belongs, Of course, various modifications and variations are possible within the scope of equivalent claims.

Claims (7)

In the spanner having a handle portion, and a head portion is formed at one end of the handle portion to loosen or tighten the object, When the user grips the inside of the head portion with the right hand, one slide piece is slidably reciprocated between the head portion and the object on an adjacent side of the user, and the sliding range is slidably expanded to move outwardly from the head portion. Equipped, The slide piece is provided with an elastic member of the coil spring to elastically bias in the opposite direction of the opening direction of the head portion, and the fixing member is coupled to both ends of the elastic member to be fixed to the head portion and the slide piece, One surface of the slide piece engaging with the object is a wedge shape in which the width of the slide piece is widened toward the outside in a state in which a protrusion capable of providing frictional force is provided. Spanner, characterized in that the head portion is formed with an arc-shaped screw groove on the inner bottom in the direction of the handle portion. delete delete delete delete delete delete

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