WO2011099727A2

WO2011099727A2 - Resilient device

Info

Publication number: WO2011099727A2
Application number: PCT/KR2011/000763
Authority: WO
Inventors: 이한상
Original assignee: Lee Hansang
Priority date: 2010-02-11
Filing date: 2011-02-07
Publication date: 2011-08-18
Also published as: KR20110093162A; KR101184003B1; WO2011099727A3

Abstract

Disclosed is a resilient device having an arm member formed of a housing portion and a thin plate extension portion. The resilient device comprises a torsion spring and the arm member connected to the torsion spring. The torsion spring comprises a wound portion wound in a spiral shape and an extending arm extending outward from the wound portion. The arm member comprises: a housing portion that receives the wound portion therein, fixedly supports an end of the wound portion in a side thereof, and includes an open part in at least a side thereof through which the extending arm is externally exposed, so as to allow the extending arm to pivot with respect to the arm member; and a thin plate extending portion extending from a side of the housing portion to the outside of the housing portion.

Description

Elastic mechanism

The present invention relates to an elastic mechanism, and more particularly, to an elastic mechanism suitable for use in a sliding opening and closing device of a portable terminal such as a wireless telephone, a PDA, a PMP, a portable game machine, and the like.

An elastic mechanism that has been invented and filed by the inventor of the present invention is configured by combining two thin plates facing each other with an arm member connected to the torsion spring, and configured to receive the winding portion of the torsion spring between the two thin plates. US 2008/0007870 34 to 36 of A1 (hereinafter referred to as "pre-applied invention") are disclosed.

The present invention relates to an improved or improved invention using the invention of the present invention, which has been invented and filed by the inventor.

Among the disclosed in the drawings of the present invention having the arm member that is coupled to face the two thin plate portion is the thin plate within the rotation range of the arm member because the entire arm member is coupled to face the two thin plate portions of the same length to have the same thickness over the entire length It cannot be used where there is a small gap of thickness.

What is disclosed in the drawings of the prior application is not used where there is an obstacle protruding from the side within the rotation range of the arm member.

In addition, the present invention is difficult to assemble, the size of the accessories used for the joining is large, and the material of the arm member is also used because it must be bonded to each other along the entire edge of the two thin plate portion.

SUMMARY OF THE INVENTION An object of the present invention is to provide an elastic mechanism that can be mounted even in a gap with a smaller gap than the conventional one in the rotation range of the arm member while having a portion for accommodating a portion of the spring therein and can also save material. .

Still another object of the present invention is to provide an elastic mechanism that can be used where there is an obstacle protruding laterally within the rotation range of the arm member.

Another object of the present invention is to provide an elastic mechanism that can reduce the length of the coupling compared to the conventional one, and requires less material.

Still another object of the present invention is to provide an elastic mechanism with a simplified manufacturing process as compared with the conventional one.

An elastic mechanism according to the present invention is an elastic mechanism having a torsion spring having a spiral wound and the extension arm extending from the winding portion to the outside of the winding portion and the arm member connected to the torsion spring, the arm member Is,

A housing part having an opening part for accommodating the winding part therein, fixedly supporting an end of the winding part to one side, and allowing at least one side to be rotated with respect to the arm member with the extension arm exposed to the outside; And a thin plate extending part extending out of the housing part at one side of the housing part.

The arm member is coupled to face the first mounting portion and the first mounting portion having a first mounting portion and the first mounting portion extending to one side from the first mounting portion and the first mounting portion to be wound together with the first mounting portion It is preferable that it is comprised including the 2nd thin plate part which forms the said housing part.

The first thin plate portion may have a bent portion bent in the thickness direction between the first mounting portion and the first thin plate extension portion.

In some cases, the arm member is coupled to face the first mounting portion and the first mounting portion having a first mounting portion to which the winding portion is mounted and a first thin plate extension extending to one side from the first mounting portion, And a second thin plate portion having a second thin portion extending from the second mounting portion to the first thin plate extending portion to be coupled to the first thin plate extending portion. have.

At least one of the first thin plate extension and the second thin plate extension may have a bent portion that is bent toward the other or the other side of the other.

Two or more of the torsion springs may overlap vertically.

Each of the winding portions of the two torsion springs are wound in the same direction or opposite to each other, and each of the extension arms of the two torsion springs may extend in different directions, respectively.

The elastic mechanism according to the present invention has the advantage that the coupling length of the two members is reduced compared to the previous application.

The elastic mechanism according to the present invention has the advantage that the material of the arm member requires less.

The elastic mechanism according to the present invention can be used even in a relatively small gap in the rotation range of the arm member compared to the conventional one.

The elastic mechanism according to the present invention can also be used where there is a portion protruding laterally in the rotation range of the arm member.

The elastic mechanism according to the present invention can be configured in various ways as needed thin plate extension of the arm member.

1 is a perspective view of an elastic mechanism according to the present invention,

Figure 2 is an exploded perspective view of the elastic mechanism of Figure 1,

Figure 3 is an exploded perspective view of the elastic mechanism of Figure 1 inverted up and down,

4 is a perspective view showing a modification of FIG.

5 is a perspective view showing another modified example of FIG.

6 is a perspective view showing another modified example of FIG.

7 and 8 are respectively a perspective view of another example of the elastic mechanism according to the present invention,

9 is a perspective view showing another example of an elastic mechanism according to the present invention;

10 is a plan view showing another embodiment of the elastic mechanism according to the present invention;

11 and 12 are perspective views showing still another embodiment of the elastic mechanism according to the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

1 is a perspective view of an elastic mechanism according to the present invention, Figure 2 is an exploded perspective view of the elastic mechanism of Figure 1, Figure 3 is an exploded perspective view of the elastic mechanism upside down.

As shown in Figures 1 to 3, the elastic mechanism 100 according to the present invention is provided with a torsion spring (110). When a larger elastic force than the thickness is required, the torsion spring 110 is used to overlap two up and down. The torsion spring 110 has a winding portion 112 wound in a spiral shape and an extension arm 114 extending from the winding portion 112 to the outside of the winding portion 112. At the end of the extension arm 114, a hinge portion 116 is provided for connecting to another member. The hinge portion 116 is installed in the form of insert injection, and also serves to integrally combine the ends of the extension arms 114 of the two torsion springs 110.

The elastic mechanism 100 according to the present invention includes an arm member 130. The arm member 130 is an improvement of the arm member of the previous application, and is a part which forms a large feature of the present invention which is differentiated from the previous application.

The arm member 130 is composed of a housing portion 132 and a thin plate extending portion 134 extending to one side from the housing portion 132. The housing 132 accommodates the winding portion 112 of the torsion spring 110 therein and fixedly supports the inner end of the winding portion 112 to one side. An opening 136 is formed at one side of the housing 132 so that the extension arm 114 is exposed to the outside and rotated with respect to the arm member 130. The opening 136 is preferably formed on the opposite side of the sheet extension 134.

The arm member 130 as described above has a first thin plate portion 130a having a first mounting portion 138 on which the winding portion 112 is mounted and a first thin plate extending portion 134a extending to one side from the first mounting portion 138. It is provided. The first mounting portion 138 has edges 138a formed along the edges, leaving one edge thereof, and protrusions 138b are formed at intervals along the upper edge of the edges 138a. In addition, a spring fixing protrusion 139 may be formed at the center of the first mounting portion 138 to fix the inner end of the winding portion 112. When the first thin plate portion 130a is thick, a groove or a hole may be formed instead of the protrusion, and the inner end portion of the winding portion 112 may be bent to be coupled thereto.

1 and 2, a bending portion 137 bent upward is formed between the first mounting portion 138 and the first thin plate extension portion 134a. The bent portion 137 is formed when the height of the place where the arm member 130 is connected is high.

Of course, the bent portion 137 may be made in a form bent downward as needed. That is, the thin plate extending part 134 of the arm member 130 may be bent in the thickness direction with respect to the housing part 132. In this case, instead of the edge 148a of the second thin plate portion 140a disposed toward the thin plate extending portion 134, the bent portion 137 may be configured to block the side surface of the housing portion 132. In some cases, the bent portion 137 may not be formed.

The arm member 130 includes a second thin plate portion 140a which is coupled to face the first mounting portion 138 to form the housing portion 132 together with the first mounting portion 138. Accordingly, the thin plate extending part 134 has a thickness of the first thin plate part 130a. Hinge 135 for connecting to the other member is provided at the end of the thin plate extending portion 134. The second thin plate portion 140a also has an edge 148a formed along the edge, leaving one edge thereof, and engaging grooves 148b are formed along the bottom of the edge 148a. The locking grooves 148b are coupled to the protrusions 138b by bending so that the second thin plate portion 140a can be stably fixed to the first thin plate portion 130a. The locking groove 148b and the protrusion 138b may be formed by changing their positions with each other or by mixing them in one member.

1 to 3, the elastic mechanism 100, the housing portion 132 accommodates the winding portion 112 therein to protect the thin plate extending portion 134 of the arm member 130 is connected to the other member is thinner It can be used even where there is a small gap in the turning radius of the arm member 130.

1 to 3, the arm member 130 having the housing portion 132 in a part by assembling the first thin plate portion 130a and the second thin plate portion 140a using the locking groove 148b and the protrusion 138b. Although shown to make, the first thin plate portion 130a and the second thin plate portion 140a can be assembled by welding or fusion as necessary. Furthermore, the arm member 130 having the housing part 132 may be integrally formed by insert injection in a state in which the winding part 112 is inserted into the mold.

4 is a perspective view showing a modification of the elastic mechanism of FIG.

When the thickness of the portion where the torsion spring 110 is installed is more important than the size of the elastic force, the elastic mechanism 100 according to the present invention may use one torsion spring 110. Accordingly, the winding part 112 is provided in the housing part 132 in a single layer, and the thickness of the housing part 132 is also smaller than in the previous embodiment. At this time, the bent portion described in the previous embodiment may not be formed in the first thin plate portion 130a. The rest is as described with reference to FIGS.

5 is a perspective view illustrating another modified example of FIG. 1.

The hinge portion 116 formed at the end of the extension arm 114 of the torsion spring 110 may have a shape in which the end of the extension arm 114 is wound in a circular shape. That is, the hinge portion 116 of the elastic mechanism 100 according to the present invention may be configured in various ways depending on the conditions of the installation place. The rest is as described with reference to FIGS.

6 is a perspective view illustrating another modified example of FIG. 1.

In addition, in some cases, the hinge portion 116 is formed on only one of the two torsion springs 110 that are overlapped up and down, and the other one of the extension arms 114 in a state in which the extension arm 114a is shortly formed. Can be fixed by welding or the like. The elastic mechanism 100 shown in FIG. 6 may be suitably used where the gap between the hinge portion 135 is small but a large elastic force is required. The rest is as described with reference to FIGS.

7 and 8 are perspective views showing still another example of the elastic mechanism according to the present invention.

The arm member 130 of the elastic device 100 according to the present invention may be made by overlapping the first thin plate portion 130a and the second thin plate portion 140a both having thin plate extensions. That is, the first thin plate part 130a and the first mounting part having the first mounting part 138 on which the winding part 112 is mounted and the first thin plate extending part 134a extending to one side from the first mounting part 138. 138 extending in the same direction as the first thin plate extension part 134a from the second mounting part 148 and the second mounting part 148 which are coupled to face the first mounting part 138 to form the housing part 132 together with the first mounting part 138. The second thin plate portion 140a including the second thin plate extension portion 144a coupled to the first thin plate extension portion 134a may be overlapped with each other.

At this time, the housing portion 132 is formed as described with reference to FIGS. 1 to 3, but the first thin plate extending portion 134a and the second thin plate extending portion 144a are bent portions 147 in only one of them, as shown in FIG. 7. ) May be attached to each other, or as shown in FIG. 8, the

bent portions

137 and 147 that are bent toward each other may be formed to attach to each other.

The rest is as described with reference to FIGS.

9 is a perspective view showing another example of the elastic mechanism according to the present invention.

7 and 8, the elastic mechanism 100 may be configured by forming the

bent portions

137 and 147 in the direction away from each other on the first thin plate extending portion 134a and the second thin plate extending portion 144a. In this case, the arm member 130 may be used even when there is an obstacle inserted between the first thin plate extending part 134a and the second thin plate extending part 144a. In some cases, only one of the first thin plate extension part 134a and the second thin plate extension part 144a may be formed to be bent in a direction away from each other.

It can be seen from the above embodiments that the bent portion bent in the same direction may be formed in both the first thin plate extending portion 134a and the second thin plate extending portion 144a.

10 is an exploded plan view showing still another embodiment of the elastic mechanism according to the present invention.

The previous embodiments described that the winding portion 112 starts at the inner end and is wound outward without overlap, and the extension arm 114 extends outside the winding portion 112 at the outer end of the winding portion 112. However, the elastic mechanism 100 according to the present invention, when the thickness is not important, as shown in Figure 11, the winding portion 112 is wound from the outside to the inner side and the extension arm ( 114 to the torsion spring (110a) formed in the form extending to the outside of the winding portion 112 can be made by coupling to the arm member (130). At this time, the fixing protrusion 139a to which the outer end of the winding portion 112 of the torsion spring 110a is fixed is formed at the edge of the housing portion 132, and the edge is formed to the height at which the winding portion 112 is installed. It may be. The thin sheet extending part 134 is the same as described in the above embodiments.

In some cases, unlike the previous embodiments, the elastic device 100 according to the present invention arranges the extension arms 114 of the two torsion springs 110 that are overlapped up and down in different directions as shown in FIG. 11. The hinge part 116 can be provided in the edge part. At this time, each of the winding portion 112 of the two torsion springs 110 is wound in the same direction.

In some cases, the elastic mechanism 100 according to the present invention, as shown in Fig. 12, their extension arms 114 in a state in which the winding directions of the respective winding portions 112 of the two torsion springs 110 are opposite to each other. Can be arranged to extend in different directions.

The rest is as described with reference to FIGS.

The elastic mechanism according to the present invention can be moved to open and close the drawer or the door as well as the sliding opening and closing device of the portable terminal, can also be used as a spring mechanism of various mechanical devices.

Claims

An elastic mechanism comprising a torsion spring having a spirally wound portion and an extension arm extending from the winding portion to the outside of the winding portion, and an arm member connected to the torsion spring.

The arm member,

A housing part having an opening part for accommodating the wound part therein, fixedly supporting an end portion of the wound part on one side, and allowing at least one side to be rotated with respect to the arm member with the extension arm exposed to the outside; ; And

An elastic mechanism, characterized in that it comprises a thin plate extending portion extending out of the housing portion at one side of the housing portion.
According to claim 1, wherein the arm member is coupled to face the first plate portion and the first mounting portion having a first mounting portion on which the winding portion is mounted and a first thin plate extension portion extending to one side from the first mounting portion And a second thin plate portion forming the housing portion together with the first mounting portion.
The elastic mechanism according to claim 2, wherein the first thin plate portion is provided with a bent portion bent in the thickness direction between the first mounting portion and the first thin plate extension portion.
According to claim 1, wherein the arm member is coupled to face the first plate portion and the first mounting portion having a first mounting portion on which the winding portion is mounted and a first thin plate extension portion extending to one side from the first mounting portion And a second mounting part having a second mounting part forming the housing part together with the first mounting part, and a second thin plate extension part extending from the second mounting part toward the first thin plate extension part to be coupled to the first thin plate extension part. Elastic mechanism.
5. The elastic mechanism as claimed in claim 4, wherein at least one of the first thin plate extension and the second thin plate extension has a bent portion that is bent toward the other or to the other side of the other.
The elastic mechanism according to any one of claims 1 to 5, wherein two or more of the torsion springs overlap vertically.
The method of claim 6, wherein the respective winding portions of the two torsion springs are wound in the same direction or opposite to each other, wherein each of the extension arms of the two torsion springs extend in different directions, respectively Elastic mechanism.