KR100811048B1 - Actuator - Google Patents

Abstract

An actuator is provided to minimize the movement of a spring when the spring operates and prevent the interference resulting from the movement of a spring previously. An actuator includes the first molding part(200), the second molding part(300), a spring member(400), and a pivot. The second molding part is coupled to the end of the first molding part such that the second molding part rotates. The spring member includes the first spring arm fixed to the first molding part and the second spring fixed to the second molding part. The spring member integrally couples the first spring arm to the second spring arm. The first molding part is pivot-coupled to the second molding part on a member to be mounted.

Description

Actuator {ACTUATOR}

The present invention relates to an actuator and a spring used therein, and more particularly, to an actuator and a spring used therein which can prevent interference due to torsion and improve stability and reliability.

1 is a perspective view showing the structure of a conventional spring.

As shown in FIG. 1, the conventional spring 101 has a coil elastic portion 201 that is bent in a spiral shape and is relatively outward from a center of the coil elastic portion 201 of both ends of the coil elastic portion 201. The first wire portion 311 extending from the one end portion disposed, and the first wire portion 311 from one end disposed relatively inward from the center of the coil elastic portion 201 among both ends of the coil elastic portion 201. It is comprised including the 2nd wire part 321 extended toward a different direction.

Such a spring 101 is installed between the objects to be moved mutually so that the mutual movement of each of the objects can be made elastic. As an example, the spring may be applied to a conventional sliding module for relatively slidingly connecting the body portion and the slide portion in the slide-type personal portable terminal including the body portion and the slide portion coupled to the body portion relative sliding.

On the other hand, the conventional spring 101 has a problem that it is difficult to operate while maintaining the balance due to its structural characteristics. That is, the conventional spring 101 has a problem that it is difficult to operate the coil elastic portion 201 and each of the wire parts 311 and 321 in a state of equilibrium on one plane due to the twist as the coil elastic portion is bent. That means that the flow is generated when the spring 101 operates.

Furthermore, there is a problem in that a part of the spring 101 is in contact with an adjacent peripheral part by the flow generated during the operation of the spring 101, and interference occurs. Accordingly, the contact portion between the spring 101 and the peripheral part is worn out. There is a problem that the stability and reliability is lowered, such as generated and operating noise.

In addition, in order to prevent the interference caused by the flow generated during the operation of the spring 101, a certain space must be secured to allow the flow of the spring 101 between the target object, the object to which the spring 101 is mounted There is a problem that the space utilization and design freedom of the deterioration.

Accordingly, the present invention has been made to solve the above problems, and provides an actuator and a spring used therein that can improve stability and reliability.

In particular, the present invention provides an actuator and a spring used therein that can minimize the flow of the spring during the spring operation, and can prevent interference due to the spring flow.

In addition, the present invention provides an actuator and a spring that is used to minimize the space required for mounting and operation of the spring and to improve the space utilization and design freedom of the object to which the spring is mounted.

According to a preferred embodiment of the present invention for achieving the above object of the present invention, the actuator is a first molding portion, a second molding portion that is rotatably bound at the end of the first molding portion, the first fixed to the first molding portion A first spring arm and a second spring arm is fixed to the second molding portion, and the first spring arm and the second spring arm includes a spring member connected integrally.

The first molding part may be directly rotatable on the second molding part, and in some cases, may be indirectly bound through a separate coupling member such as a bushing or a pin. For example, a circular portion may be formed at an end portion of the first molding portion, and a rotation guide surface for guiding rotation of the circular portion may be formed at the second molding portion, and the first molding portion may be formed through the circular portion and the rotation guide surface. It can be rotatably bound to the molding.

Preferably, the first molding portion and the second molding portion are configured to rotate in a state where the first molding portion and the second molding portion are in equilibrium with each other. In some cases, the first molding portion and the second molding portion are inclined with respect to each other. It can be configured to rotate in phase.

One side of the second molding part may be formed with a restraining protrusion for restraining the departure of the first molding part, the number and arrangement of the restraining protrusions may be variously changed according to the required conditions and design specifications. In some cases, constraining protrusions may be formed in the second molding part and the first molding part, respectively.

A first accommodating groove may be formed in the first molding part to accommodate at least a portion of the first spring arm, and a second accommodating groove may be formed in the second molding part to accommodate at least a portion of the second spring arm. Can be. Each spring arm may be fixed to the first molding part and the second molding part by being accommodated in the first and second accommodating grooves.

In this case, the first accommodating groove and the second accommodating groove may be formed to have openings in opposite directions. Alternatively, the first accommodating groove and the second accommodating groove may be configured to have openings in the same direction.

The manner of fixing each spring arm on each molding can be varied in various ways depending on the requirements and design specifications. For example, each spring arm may be fixed to each receiving groove by a snap fit coupling method, and for this purpose, the first and second molding parts may be snap-fitted so that each spring arm is snap fit to each receiving groove. An addition can be formed. In some cases, a separate snap fit coupling part may be excluded and each spring arm may be configured to be directly fixed to the first and second accommodation grooves by interference fit.

In addition, the first molding part and the second molding part may be provided with a pivot coupling part so as to pivotally attach to the workpiece. The pivot coupling portion is preferably formed together when the first molding portion and the second molding portion are injection molded to simplify the structure and manufacturing process. In some cases, the pivot coupling portion is separately mounted on the first molding portion and the second molding portion. Can be.

The spring member may include a coil elastic part integrally connected between the first spring arm and the second spring arm, and the structure and shape of such a coil elastic part may be variously changed according to required conditions and design specifications. . For example, the coil elastic part has a first outer coil, one end of which is connected to the first spring arm, a winding diameter relatively smaller than the first outer coil, and one end of which is connected to the other end of the first outer coil. It may include a second outer coil having a relatively large winding diameter and one end connected to the other end of the inner coil and the other end connected to the second spring arm. In addition, the first outer coil and the second outer coil may be arranged in close contact with each other, and the inner coil may be disposed inside the first and second outer coils.

The first outer coil and the second outer coil are preferably formed to have winding diameters corresponding to each other, and in some cases, the first outer coil and the second outer coil may have different winding diameters.

In addition, the number of turns of at least one of each of the outer coil and the inner coil may be plural, and the present invention is not limited or limited by the number of turns of the outer coil and the inner coil.

The first molding part may include a first accommodation hole for accommodating the coil elastic part therein, and the second molding part may include a second accommodation hole for accommodating the coil elastic part therein. In addition, the first accommodation hole may be formed so that the second accommodation hole has a diameter corresponding to each other, each receiving hole may be disposed in communication with each other.

On the other hand, the first and second molding portion may be formed with a fitting groove on the side to communicate with each receiving groove along with each receiving groove.

For reference, the actuator and the spring of the present invention can be applied to a conventional sliding module for relatively slidingly connecting the main body portion and the slide portion in a general slide type personal portable terminal, and can be applied to various devices and structures in addition to the sliding module. .

According to the slide type personal portable terminal according to the present invention, according to the present invention, each spring arm of the spring member can be operated in a fixed state supported by the first and second molding parts, thereby reducing the flow generated during spring operation. It minimizes and prevents interference due to spring flow.

In addition, according to the present invention, it is possible to provide a predetermined or more elastic force without increasing the thickness of the spring member and contribute to the miniaturization and thinning of the actuator and the product to which it is employed.

In addition, according to the present invention, by eliminating a separate riveting process for pivotally coupling the actuator to the object, by allowing each of the molding portion to be injection molded, the pivot joint can be integrally formed with each molding portion, the structure and It can simplify the manufacturing process and contribute to cost reduction and productivity improvement.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, but the present invention is not limited or limited by the embodiments. For reference, in the present description, the same numbers refer to substantially the same elements, and may be described by quoting the contents described in other drawings under the above rules, and the contents repeated or deemed apparent to those skilled in the art may be omitted.

2 and 3 are perspective views showing the structure of the actuator according to the invention, Figure 4 is an exploded perspective view showing the structure of the actuator according to the present invention.

5 is a plan view showing the structure of the actuator according to the present invention, Figure 6 is a rear view showing the structure of the actuator according to the present invention, Figure 7 is a cross-sectional view taken along line I-I of FIG. On the other hand, Figure 8 is a perspective view showing the structure of a spring according to the present invention.

As shown in these drawings, the actuator 100 according to the present invention includes a first molding part 200, a second molding part 300 and a spring member 400, and the object to be moved with each other ( It is installed between the 10, 20 to allow the mutual movement of each of the target objects (10, 20) to be made elastic.

The first molding part 200 and the second molding part 300 are rotatably bound to each other about one end and constrain the spring member 400, and the torsion generated during operation of the spring member 400 and the It is provided to minimize flow.

The first molding part 200 and the second molding part 300 may be manufactured through a conventional injection method, and the shape and structure of each molding part 200 and 300 may be applied to the structure and design specification of the spring member 400. It can be changed in various ways.

The first molding part 200 may be directly rotatable on the second molding part 300, and may be indirectly bound through a separate coupling member such as a bushing or a pin in some cases.

Hereinafter, a circular portion 210 is formed at an end of the first molding portion 200, and a rotation guide surface 310 for guiding rotation of the circular portion 210 is formed at the second molding portion 300. For example, the first molding part 200 is rotatably coupled to the second molding part 300 through the circular part 210 and the rotation guide surface 310.

In addition, the first molding part 200 and the second molding part 300 is preferably configured to rotate in a state of maintaining a balance with each other on one plane, in some cases, the first molding part 200 and the second The molding part 300 may be configured to rotate on different planes while being inclined with respect to each other.

In addition, a constraint protrusion 312 may be formed at one side of the second molding part 300 to restrain the departure of the first molding part 200. The restraining protrusion 312 is formed integrally with the second molding part 300 to cover a part of the circumference and a part of the outer surface of the first molding part 200, so that the departure of the first molding part 200 along the rotation axis direction is removed. To be constrained. In addition, the number and arrangement of the restraint protrusions 312 may be variously changed according to required conditions and design specifications.

In addition, in the above-described embodiment, for example, the restricting protrusion 312 is formed only on the second molding part 300. Constraints may be formed together to cover a portion of the outer surface.

A first accommodating groove 220 may be formed in the first molding part 200 to accommodate at least a portion of the first spring arm 410, and a second spring arm may be formed in the second molding part 300. The second accommodation groove 320 may be formed to accommodate at least a portion of the 420. Each of the spring arms 410 and 420 may be accommodated in the first and second accommodating grooves 220 and 320 so as to be fixed to the first molding part 200 and the second molding part 300, respectively.

The first accommodating groove 220 and the second accommodating groove 320 may be formed to have an opening in a direction facing each other. That is, the first accommodating groove 220 may be formed on the outer surface of the first molding part 200, and the second accommodating groove 320 is disposed in the direction opposite to the outer surface of the first molding part 300. It may be formed on the outer surface of the). Such a structure allows the first molding part 200 and the second molding part 300 to be disposed between the spring arms 410 and 420, and the first molding part 200 and the second molding part 300 are formed. The binding state can be made more stable. In some cases, the first accommodating groove 220 and the second accommodating groove 320 may have openings in the same direction.

Meanwhile, the method of fixing the spring arms 410 and 420 on the molding parts 200 and 300 may be variously changed according to required conditions and design specifications.

For example, the spring arms 410 and 420 may be fixed to the respective receiving grooves 220 and 320 in a snap fit coupling manner, and the spring arms 410 and 420 may be fixed to the first and second molding parts 200 and 300. Snap fit coupling portions 222 and 322 may be formed such that 410 and 420 are snap fit coupled to the respective receiving grooves 220 and 320. The snap-fit coupling portions 222 and 322 are provided to form entrance holes smaller than the widths of the receiving grooves 220 and 320 near the openings of the receiving grooves 220 and 320, so that the spring arms 410 and 420 can be elastically inserted and removed. It can be modified. In some cases, the spring arms 410 and 420 may be configured to be directly fixed to the first and second accommodation grooves 220 and 320 by an interference fit method, excluding a separate snap fit coupling part.

In addition, the first molding part 200 and the second molding part 300 may be provided with pivot coupling parts 240 and 340 to be pivotally coupled to the workpiece, and each of the pivot coupling parts 240 and 340. Is pivotally coupled to the coupling hole 30 of the object (10,20). The coupling hole 30 formed in the target object 10 or 20 has an approximately nut-shaped insertion hole 31 formed to have a diameter slightly larger than the pivot coupling portions 240 and 340 (in some cases, having a corresponding diameter). And a fixing hole 32 having a smaller diameter than the insertion hole 31 so as to communicate with the insertion hole 31 to which the pivot coupling parts 240 and 340 are fixed. At this time, the fixing hole 32 is preferably formed to have a circumferential surface larger than at least 1/2 circle to prevent the pivot coupling portion 240, 340 is separated from the insertion hole 31 side.

By such a structure, the pivot coupling parts 240 and 340 may be inserted through the insertion holes 31 having a relatively large diameter. After the pivot coupling parts 240 and 340 are inserted, the fixing holes 32 having a relatively small diameter may be inserted. The pivot coupling portion 240, 340 is moved to the pivot coupling portion 240, 340 may be pivotally coupled to the coupling hole (30).

The pivot coupling parts 240 and 340 may be separately mounted to the first molding part 200 and the second molding part 300, but the first molding part 200 and the second molding may be simplified to simplify the structure and manufacturing process. Preferably, the portion 300 is formed together when injection molded.

The spring member 400 includes a first spring arm 410 fixed to the first molding part 200 and a second spring arm 420 fixed to the second molding part 300, each spring arm ( 410 and 420 are integrally connected. The spring member 400 may be formed by bending a wire rod having a predetermined thickness, and the shape and structure of the spring member 400 may be variously changed according to the required conditions and design specifications.

In addition, the spring member 400 may include a coil elastic portion 430 integrally connected between the first spring arm 410 and the second spring arm 420. That is, the coil elastic portion 430 may be formed spirally by bending a wire rod having a predetermined thickness, one end of the coil elastic portion 430 is integrally connected to the first spring arm 410, the other end It is integrally connected to the second spring arm 420. At this time, the angle and arrangement between the spring arms (410, 420) can be changed in various ways depending on the required conditions and design specifications.

On the other hand, the structure and shape of the coil elastic portion 430 formed in a spiral as described above may be variously changed according to the required conditions and design specifications. Hereinafter, the coil elastic part 430 will be described with an example including the first outer coil 432, the inner coil 434, and the second outer coil 436.

The first outer coil 432 is wound to have a predetermined winding diameter, and one end thereof is integrally connected to the first spring arm 410.

The inner coil 434 is wound to have a relatively smaller winding diameter than the first outer coil 432, and one end thereof is integrally connected to the other end of the first outer coil 432.

The second outer coil 436 is wound to have a relatively larger winding diameter than the inner coil 434, one end of which is integrally connected to the other end of the inner coil 434, and the other end of the second spring arm ( 420 is integrally connected.

The first outer coil 432 and the second outer coil 436 may be disposed in close contact with each other, and the inner coil 434 may be disposed inside the first and second outer coils 432 and 436. . Therefore, the spring member 400 may provide a predetermined or more elastic force without increasing the thickness. That is, since the coil elastic part 430 includes each of the outer coils 432 and 436 and the inner coil 434, the coil elastic part 430 may provide elastic force corresponding to two general springs. On the other hand, the overall thickness of the spring member 400 is because the inner coil 434 is disposed inside each of the outer coils 432 and 436, the first and second outer coils 432 and 436 without increasing the thickness as the inner coil 434 is formed. It can be determined by the thickness of).

In addition, the first outer coil 432 and the second outer coil 436 is preferably formed to have a winding diameter corresponding to each other, in some cases, the first outer coil 432 and the second outer coil 436 is It can be formed to have different winding diameters.

In the above-described and illustrated embodiments of the present invention, the number of turns of each of the outer coils 432 and 436 and the inner coil 434 is given by way of example, but in some cases, at least one of the outer coil and the inner coil may be used. The number of turns may be made in plural, and the present invention is not limited or limited by the number of turns of each outer coil and inner coil.

In addition, at least one end portion of at least one of the first and second spring arms 410 and 420 may be formed with fixed bending portions 411 and 421 having a substantially “L” shape. In this case, each of the receiving grooves 220 and 320 may be formed in a shape corresponding to the fixed bending portions 411 and 421. The fixed bending parts 411 and 421 restrain the twisting and torsion of the spring member 400 and allow the mounting state of the spring member 400 to be stably maintained.

For reference, in the embodiment of the present invention, the coil elastic portion 430 and the spring arms 410 and 420 each including the outer coils 432 and 436 and the inner coil 434 are described as independent components, respectively. Substantially, the coil elastic part 430 and each spring arm 410 and 420 may be provided in one structure integrally integrated by bending one wire continuously.

Meanwhile, the first molding part 200 may include a first accommodation hole 230 for accommodating the coil elastic part 430 therein, and the second molding part 300 may be the coil elastic part 430. ) May include a second accommodation hole 330 for receiving therein. In addition, the first accommodation hole 230 and the second accommodation hole 330 may be formed to have a diameter corresponding to each other, each receiving hole 230, 330 may be disposed in communication with each other.

Meanwhile, in the above-described and illustrated embodiments of the present invention, the spring arms 410 and 420 may be coupled to each of the receiving grooves 220 and 320 simply from the outer surfaces of the first and second molding parts 200 and 300. For example, the spring arms 410 and 420 may be configured to be fixed to the molding parts 200 and 300 in such a manner as to be engaged.

9 is a perspective view showing the structure of an actuator according to another embodiment of the present invention, Figure 10 is a plan view showing the structure of an actuator according to another embodiment of the present invention. In addition, the same or equivalent reference numerals are given to the same or equivalent components as those described above, and detailed description thereof will be omitted.

As shown in FIGS. 9 and 10, the first and second molding parts 200 and 300 may include fitting grooves 225 and 325 formed in the side to communicate with the receiving grooves 220 and 320 along with the receiving grooves 220 and 320. Can be.

With this structure, each of the spring arms 410 and 420 is bent at an end portion of each of the spring arms 410 and 420 at a predetermined angle while a part thereof is fitted into each of the receiving grooves 220 and 320. It can be fixed by inserting into each engaging groove (225,325) from the side of the side.

Furthermore, the end of each spring arm (410, 420) can be arranged in the engaging state of each engaging groove (225, 325), so that each spring arm (410, 420) is separated from the outer surface side of each molding portion (200, 300) by the impact during operation It can prevent it beforehand.

In addition to this method, each spring arm 410 and 420 may be fixed on each molding part 200 and 300 through a separate fastening member.

As described above, although described with reference to the preferred embodiment of the present invention, those skilled in the art various modifications and variations of the present invention without departing from the spirit and scope of the invention described in the claims below I can understand that you can.

1 is a perspective view showing the structure of a conventional spring.

2 and 3 are perspective views showing the structure of the actuator according to the present invention.

Figure 4 is an exploded perspective view showing the structure of the actuator according to the present invention.

5 is a plan view showing the structure of the actuator according to the present invention.

Figure 6 is a rear view showing the structure of the actuator according to the present invention.

7 is a cross-sectional view taken along line II of FIG. 2.

8 is a perspective view showing the structure of a spring according to the present invention.

9 is a perspective view showing the structure of an actuator according to another embodiment of the present invention.

10 is a plan view showing the structure of an actuator according to another embodiment of the present invention.

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

100: actuator 200: first molding part

300: second molding portion 400: spring member

410: first spring arm 420: second spring arm

430: coil elastic part

Claims (20)

A first molding part; A second molding part rotatably coupled at an end of the first molding part; And And a first spring arm fixed to the first molding part and a second spring arm fixed to the second molding part, wherein the first spring arm and the second spring arm are integrally connected to each other. , And the first molding part and the second molding part include a pivot coupling part pivoted to the object to be attached. The method of claim 1, And the first molding part rotates in parallel with the second molding part. The method of claim 1, The circular portion is formed at the end of the first molding portion, the second molding portion actuator, characterized in that the rotation guide surface for guiding the rotation of the circular portion is formed. The method of claim 3, Actuator, characterized in that the restriction projection for restraining the departure of the first molding portion on one side of the second molding portion. The method of claim 1, The first molding part is formed with a first receiving groove for accommodating at least a portion of the first spring arm, the second molding part is formed with a second receiving groove for accommodating at least a portion of the second spring arm. Actuator. The method of claim 5, And the first accommodating groove and the second accommodating groove are formed to have openings in directions facing each other. The method of claim 5, And the first and second molding parts further include a snap fit coupling part formed to snap fit the respective spring arms to the respective receiving grooves. The method of claim 5, The first and second molding portion actuator further comprises a engaging groove formed on the side in communication with the first and second receiving groove. delete The method of claim 1, And a pivot coupling part is formed together when the first molding part and the second molding part are injection molded. The method of claim 1, The spring member further comprises a coil elastic portion integrally connected between the first spring arm and the second spring arm. The method of claim 11, The coil elastic portion, A first outer coil having one end connected to the first spring arm; An inner coil having a winding diameter relatively smaller than that of the first outer coil, and one end of which is connected to the other end of the first outer coil; And And a second outer coil having a larger winding diameter than the inner coil, one end of which is connected to the other end of the inner coil, and the other end of which is connected to the second spring arm. The first outer coil and the second outer coil is in close contact with each other, the inner coil is an actuator, characterized in that disposed inside the first and second outer coil. The method of claim 12, And the first outer coil and the second outer coil are formed to have winding diameters corresponding to each other. The method of claim 12, At least one of each of the outer coil and the inner coil (number of coils), characterized in that the plurality of actuators. The method of claim 11, The first molding part includes a first accommodation hole for accommodating the coil elastic part therein, and the second molding part includes a second accommodation hole for accommodating the coil elastic part therein, And the first accommodation hole and the second accommodation hole are in communication with each other. The method of claim 1, Actuator, characterized in that the fixed bending portion is formed at the end of at least one of the first and second spring arms. delete delete delete delete

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