KR20110015351A - Slide apparatus for mobile communication terminal - Google Patents

Abstract

PURPOSE: A slide device for a mobile communication terminal is provided to increase assembly workability by reducing the component number of a torsion assembly. CONSTITUTION: A torsion spring(40) includes a coil unit(42) and a first and a second extended units(44,46). If a bar-type connection coil is formed in the center of the coil unit. The first and the second extended units are selectively connected to a first slide member and a second slide member by a hinge. A combining member(50) includes a lower cover plate(60) and an upper cover plate(70). The coil unit is supported to the lower cover plate. The upper cover plate is combined to the lower cover plate.

Description

Slide apparatus for mobile communication terminal

The present invention relates to a slide device for a mobile communication terminal, and more particularly, to a slide device for a mobile communication terminal having a torsion assembly in which the bar connection coil of the integrated torsion spring is fitted to and supported by the coupling member.

A mobile communication terminal is a wireless communication device that allows a user to carry the terminal and communicate while moving. Such mobile communication terminals may be generally classified into a flip method, a folder method, and a slide method according to their appearance or operation method.

Among them, the slide type mobile communication terminal refers to a mobile communication terminal in which two slide parts are disposed to overlap each other, and a display unit and a key button face the same direction on each slide part. That is, the slide-type mobile communication terminal has an upper body 100 provided with the display unit 101 and a lower main body provided with a key button 111. The lower body 110 is disposed on the lower side of the upper body 100 can be moved by a slide device.

The slide device, the upper body 100 is provided with a display unit 101, the lower body 110 is disposed below the upper body 100 and the key button 111 is provided.

The upper main body 100 and the lower main body 110 are fastened in a slide manner by a slide device, and the upper main body 100 can slide in a linear direction with respect to the lower main body 110 by the slide device.

As shown in FIG. 2, the slide device includes a first slide member 130 fixed to the lower main body 110 and a slide movement to the first slide member 130 fixed to the upper main body 100. A torsion assembly for providing a torsion to the second slide member 140 and the second slide member 140 when the second slide member 140 slides with respect to the first slide member 130. 150).

The torsion assembly 150 is composed of a pair of torsion springs, and each torsion spring is provided with a coil 151 wound in a circular shape and two extension portions 152 extending from both ends of the coil 151. The ends of each extension part 152 are rotatably coupled to the slide member 130 and the second slide member 140.

3A and 3B show the operation of the slide device of FIG. 2, and as the second slide member 140 is raised, the interval between the extension portions 152 of the respective torsion springs is gradually narrowed. The torsion provided to the slide member 140 is increased. The second slide member 140 reaches an intermediate point of the overall rising height, and the torsion provided to the second slide member 140 is maximized while the gap between the extension parts is minimized. Even if the second slide member 140 is slightly moved upward in this state, the second slide member 140 is provided by the torsion provided by the torsion assembly 150 (a force to widen the gap between the extension parts). Will rise to the height that can move as much as possible without any external force.

In the conventional slide device, a pair of torsion springs are installed between the first slide member and the second slide member, and each torsion spring must be separately installed on the first and second slide members, thereby increasing the overall assembly time. There is a problem.

In addition, the pair of torsion springs do not have a symmetry relationship with each other, and because they do not have a symmetry relationship with each other in operation, the same torsion does not act on each of the torsion springs. As a result, the same durability is not secured in each torsion spring, thereby lowering the overall reliability of the mobile communication terminal.

Meanwhile, Korean Laid-Open Patent Publication No. 2007-0005905 (hereinafter referred to as a patent document) discloses a torsion assembly having a first spring 61, a second spring 62, a coupling member 63, and a separation plate 64 ( 60) is disclosed. The torsion assembly 60 may improve durability by forming the first spring 61 and the second spring 62 symmetrically with respect to the center portion of the coupling member 63 to act the same torsion.

However, in the torsion assembly 60 of the patent document, the first and second springs 61 and 62 are stacked in the coupling member 63 via the separating plate 64, so that the total number of parts is large. Since the 1,2 springs (61, 62) can be arranged upside down, not only the assembly workability is reduced, but also the thickness of the torsion assembly 60 increases as much as the separating plate 64, thereby limiting the thickness of the mobile communication terminal. .

An object of the present invention has been made to solve the above-mentioned problems, and can reduce the number of parts of the torsion assembly to improve the assembly workability, and at the same time reduce the thickness of the torsion assembly to reduce the thickness of the mobile communication terminal mobile communication It is to provide a slide device for a terminal.

In order to achieve the above object, the present invention provides a first slide member fixed to a lower body of a mobile communication terminal, and a second slide member fixed to an upper body of a mobile communication terminal and slidably coupled to the first slide member. And a torsion assembly providing a torsion to the second slide member when the second slide member slides with respect to the first slide member, wherein the torsion assembly is spirally overlapped. A torsion spring having a coil part having a coil connecting coil formed at the center and extending to both coil parts and selectively hinged to the first and second slide members, and the bar connecting coil being inserted into the coil A coupling member having a lower cover plate which is additionally supported and an upper cover plate which is coupled to the lower cover plate. It should.

The torsion springs extend from the first and second extensions to the first and second coils of the coil part, respectively, to form upper and lower parts, and the front ends of the first coil and the second coil are connected to each other by a bar connection coil to form an integrated structure.

The torsion spring has an intersection where the first and second extensions intersect with each other before being mounted on the coupling member, and the first and second extensions form a predetermined angle with respect to the vertical center line perpendicular to the intersection.

The bar connection coil is preferably formed to be orthogonal to the vertical center line.

The lower cover plate has a protrusion formed on the bottom surface thereof, and a straight slot is formed in the protrusion, so that the bar connection coil is fitted into the bottom cover plate.

The lower cover plate is formed with a first edge along the leading edge, the first edge is formed with a cutting portion for allowing the first and second extension portions to rotate at a predetermined angle, respectively, the upper cover plate is the first edge along the tip A second edge is formed to be coupled to the first edge, and the second edge is formed on the second edge so that the first and second extension parts are rotatably formed at predetermined angles.

A plurality of locking pieces are formed at predetermined intervals along the front edge of the first edge, and a plurality of locking grooves formed to correspond to the locking pieces are formed on the second edge, respectively. In addition, a plurality of locking grooves may be formed in the first border, and a plurality of locking pieces may be formed in the second border.

The lower cover plate is partially cut in the bottom surface to form a projection piece to have a receiving groove, the bar connection coil is fitted to be coupled.

The upper cover plate may be configured such that a pair of support pieces partially cut in correspondence with the protrusion pieces are formed on the bottom surface thereof so as to be bent such that the support pieces are arranged adjacent to the protrusion pieces.

The lower cover plate and the upper cover plate is preferably produced by pressing a plate material.

In addition, the present invention includes a first slide member fixed to the lower body of the mobile communication terminal, a second slide member fixed to the upper body of the mobile communication terminal and slidably coupled to the first slide member, and the second A slide device for a mobile communication terminal comprising a torsion assembly for providing a torsion to the second slide member when the slide member slides with respect to the first slide member, wherein the torsion assembly is spirally overlapped and bar-shaped at the center. A torsion spring having a coil having a coil formed thereon and first and second extension portions symmetrically extending to both sides of the coil and hingedly connected to the first and second slide members, and the bar connection coil being inserted to support the coil portion. A coupling member having a lower cover plate and an upper cover plate engaged with the lower cover plate; The lower cover plate is formed with a rib portion extending along the tip, the rib portion is formed with the first and second extending portions are respectively rotatable at a predetermined angle, the upper cover plate is formed with an edge along the tip, The edge portion is formed so that the first and second extensions are rotatably formed at predetermined angles, respectively.

A plurality of locking jaws are formed at a predetermined interval in the rib portion of the lower cover plate, and the plurality of locking pieces are formed on the edges of the upper cover plate to correspond to the locking jaws, respectively. Can be. In addition, a plurality of locking projections are formed at a predetermined interval in the rib portion of the lower cover plate, and formed on the edge of the upper cover plate to correspond to the locking projections, respectively, so that a plurality of locking grooves into which the locking protrusions are inserted may be formed. have.

Preferably, the upper cover plate is press-fabricated with a plate material, and the lower cover plate is injection-molded with a plastic material.

According to the slide device for a mobile communication terminal according to the present invention, since the bar-shaped connection coil of the integrated torsion spring is coupled to the lower cover plate of the coupling member, the two torsion springs are stably operated compared to the two separate torsion springs. In addition to increasing the life of the assembly, it is possible to increase the reliability of the mobile communication terminal. In addition, by using an integrated torsion spring can simplify the process to improve the assembly workability and reduce the production cost.

4 is a plan view of a slide device for a mobile communication terminal according to the present invention, Figure 5 is an exploded perspective view of the torsion assembly in a slide device for a mobile communication terminal according to a first embodiment of the present invention.

First Embodiment

As shown in FIG. 4, the slide device for a mobile communication terminal according to the present invention includes a first slide member 10 and a second slide member 20 which is slidably coupled to the first slide member 10. And a torsion assembly 30 which provides a torsion to the second slide member 20 when the second slide member 20 slides with respect to the first slide member 10. Here, the torsion assembly 30 is composed of a torsion spring 40 and a coupling member 50 for coupling the torsion spring 40.

The first slide member 10 is fixed to an upper body (not shown) of the mobile communication terminal. In addition, the second slide member 20 is fixed to a lower body (not shown), and is slidably coupled to the first slide member 10.

As shown in FIGS. 4 and 5, the torsion assembly 30 according to the first embodiment of the present invention includes a torsion spring 40 and a lower cover plate covering the coil part 42 of the torsion spring 40. It consists of a coupling member 50 having a 60 and an upper cover plate 70.

The torsion spring 40 extends symmetrically on both sides of the coil part 42 wound in a spiral overlap and the coil part 42 is selectively hinged to the first and second slide members 10 and 20. Two extension parts 44 and 46 are provided. In this case, the torsion spring 40 has an integral structure in which the coil part 42 and the first and second extension parts 44 are connected to each other, and the element wire has a wide rectangular cross section compared with the height.

In addition, as shown in FIG. 5, the torsion spring 40 has an intersection point P at which the first and second extension parts 44 and 46 intersect with each other before being mounted on the coupling part material 50. The first and second extension portions 44 and 46 form a constant angle θ with respect to the vertical center line C perpendicular to the intersection point P, respectively.

 The coil part 42 is connected to the first extension part 44 to form an upper part of the first coil 42a, and to the second extension part 46 to form a lower part of the second coil 42b and In addition, the first coil 42a and the second coil 42b are connected to each other by a bar connection coil 42c.

In this case, the coil part 42 has a structure in which it is wound several times in a spiral and overlaps up and down, and it is possible to change the position of the first coil 42a and the second coil 42b, that is, turn it over. In addition, the coil unit 42 preferably winds the coil so that the torsion acts equally on the first and second extension portions 44 and 46.

The bar connection coil 42c has a straight bar structure in which the inner end of the second coil is connected to each other at the inner end of the first coil 42a. In addition, the bar connection coil 42c serves to support the torsion spring 40 by being fitted into the protrusion 62 of the lower cover plate 60 to be described later. Here, the bar connection coil 42c is formed to be perpendicular to the vertical center line C, as shown in FIG. 5.

The first extension part 44 extends from the first coil 42a of the coil part 42 to be hinged to the second slide member 20. The second extension part 46 extends from the second coil 42b of the coil part 42 to be hinged to the first slide member 10.

Here, when the stacking position is changed on the first and second coils 42a and 42b of the coil part 42, the first extension part 44 is connected to the first slide member 10 and the second extension part. The portion 46 may be configured to be connected to the second slide member 20.

On the other hand, the torsion spring 40 has a lead length (a; length of the first and second extensions), lead angle (θ; between the first and second extensions), thickness, as shown in FIG. The torsion value is determined by (t).

The torsion spring 40 has a lower torsion value as the lead length a is lower, the lead angle θ is smaller, and the thickness t is larger.

Here, in designing the torsion spring 40, the lead length a is 18 to 24 mm (2 mm interval), the lead angle θ is 20 to 42 degrees (2 degrees interval), and the thickness t is 0.3 to The desired torsion value can be set to 0.4mm (0.05mm interval).

The coupling member 50 is composed of a lower cover plate 60 and an upper cover plate 70 which respectively cover the lower and upper portions of the coil part 42 while supporting the central portion of the torsion spring 40. Here, the lower cover plate 60 and the upper cover plate 70 is made of a sheet metal material to be molded into a press.

The lower cover plate 60 has a protrusion 62 having a slot 62a for sandwiching and supporting the bar-shaped connecting coil 42c of the coil part 42 on the bottom surface thereof, and having a first bent along the tip. The edge 64 is formed. The lower cover plate 60 is provided with a plurality of engaging pieces 66 along the tip of the first edge 64. A pair of cutouts 64a are formed in the first edge 64 so that the first and second extension portions 44 and 46 are rotatable at predetermined angles, respectively.

The upper cover plate 70 has a drawing portion 72 formed at a portion corresponding to the protrusion 62. The drawing portion 72 is a pressing force is applied from the upper side to the lower side during the press working to form a concave groove on the top surface and the convex portion is formed on the bottom surface. Here, the drawing portion 72 is disposed adjacent to the protrusion 62 when the lower cover plate 60 and the upper cover plate 70 is assembled so that the coil portion 42 of the torsion spring 40 is separated. It serves to prevent.

 And, the upper cover plate 70 is bent along the leading end is formed with a second border 74 which is coupled to the first border 64 of the lower cover plate 60, the second edge of the 74 A locking groove 76 is formed to correspond to the locking piece 66 along a bending line. A pair of cutouts 74a are formed in the second edge 74 to correspond to the first edge 64 so that the first and second extension parts 44 and 46 are rotatable at predetermined angles, respectively. have.

Meanwhile, the cutouts 64a and 74a are used as stoppers for determining the positions of the first and second extension parts 44 and 46 of the torsion spring 40.

Assembling the torsion spring 40, as shown in Figure 6a, connecting the coil 62c of the coil portion 62 in the slot 62a of the protrusion 62 formed in the lower cover plate 60. Insert and fix. At this time, the first extension portion 44 and the second extension portion 46 of the torsion spring 40 are maintained in a state where they cross each other.

Thereafter, as shown in FIG. 6B, the first extension part 44 is pulled and fixed to one end (right end in FIG. 6B) of the cutout 64a of the first edge 64 while the first extension part 44 is fixed. The extension part 46 is pulled and preassembled by walking to the other end (left end of FIG. 6B) of the cutout 64a of the first edge 64. At this time, the coil part 42 of the torsion spring 40 is partially compressed in the wound direction so that the first extension part 44 and the second extension part 46 are positioned.

Finally, as shown in Figure 6c, while engaging the upper cover plate 70 to the lower cover plate 60, each of the plurality of engaging grooves 76 formed in the edge 74 of the upper cover plate 70 A plurality of engaging pieces 66 formed on the first edge 64 of the lower cover plate 60 are fitted to each other.

Hereinafter, an operation process of the slide device according to the first embodiment of the present invention will be described with reference to FIGS. 7A to 7C.

7A illustrates an initial state in which the second slide member 20 does not slide with respect to the first slide member 10. In this case, the torsion spring 40 is not deformed, and the hinge point of the first extension part 44 is positioned above the hinge point of the second extension part 46.

As shown in FIG. 7B, when an external force is applied to the second slide member 20 with respect to the first slide member 10, the slide slides downward based on the drawing. When the hinge points of the two extension parts 44 and 46 are formed in the same line, the second slide member 20 is positioned at a central portion with respect to the first slide member 10.

At this time, the torsion spring 40 has a minimum distance between the first extension part 44 and the second extension part 46 between the first and second slide members 10, while the torsion spring works to the maximum. Thereafter, when a slight external force is applied to the second slide member 20, the second slide member 20 is driven by a force to widen the gap between the first extension part 44 and the second extension part 46. In addition, it moves downward with respect to the first slide member 10 based on the drawings without an external force.

The second slide member 20 illustrated in FIG. 7C is slidably moved downward with respect to the first slide member 10. At this time, unlike in FIG. 7A, the torsion spring 40 has a hinge point of the first extension part 44 located below the hinge point of the second extension part 46.

As shown in FIGS. 7A to 7C, when the second slide member 20 slides downward with respect to the first slide member 10, the torsion spring 40 rotates clockwise at a predetermined angle in FIG. 7B. The maximum torsion is provided from the point of view. Of course, when the second slide member 20 slides upward with respect to the first slide member 10, the torsion spring 40 rotates at a predetermined angle in the counterclockwise direction to provide the torsion.

According to the slide device according to the first embodiment of the present invention, the connecting coil 42c of the coil part 42 is inserted into the slot 62a of the protrusion 62 formed in the lower cover plate 60, thereby torsion spring 40. Is supported, the cover plate (60, 70) made of sheet metal material is coupled to each other to form a torsion assembly (30). When the torsion assembly 30 slides between the first slide member 10 and the second slide member 20, the torsion spring 40 is stably supported by the coupling member 50 so that the torsion acts stably. .

Second Embodiment

8 is an exploded perspective view of the torsion assembly in the slide device for a mobile communication terminal according to the second embodiment of the present invention, Figure 9 is an assembly view of the torsion assembly according to the second embodiment of the present invention.

As shown in FIGS. 8 and 9, the torsion assembly 30 according to the second embodiment of the present invention is disposed between the first slide member 10 and the second slide member 20 as in the first embodiment. And a coupling member 50 having cover plates 60 and 70 coupled to the torsion spring 40 and the torsion spring 40 coupled thereto.

As shown in FIGS. 8 and 9, the torsion spring 40 extends symmetrically to both the coil part 42 and the coil part 42 wound so as to overlap in a helical manner, and thus the first and second slide members 10 are disposed in the torsion spring 40. The first and second extension parts 44 and 46 are hingedly connected to the second and second ends 20 and 20. The coil part 42 is connected to the first extension part 44 to form an upper part of the first coil 42a, and to the second extension part 46 to form a lower part of the second coil 42b and In addition, the first coil 42a and the second coil 42b are connected to each other by a bar connection coil 42c.

Here, the torsion spring 40 has the same structure as that of the first embodiment, and the same reference numerals are used to denote the same components, and detailed description thereof will be omitted.

In the torsion assembly 30 according to the second embodiment of the present invention, both the lower cover plate 60 and the upper cover plate 70 of the coupling member 50 are manufactured by pressing.

The lower cover plate 60 has a projection piece 61 formed to have a receiving groove 61a by partially cutting the bottom surface thereof, and a first edge 64 bent along a tip end thereof. The bar-shaped connecting coil 42c of the coil part 42 is inserted into and coupled to the receiving groove 61a of the protrusion piece 61. The lower cover plate 60 is provided with a plurality of engaging pieces 66 along the tip of the first edge 64. A pair of cutouts 64a are formed in the first edge 64 so that the first and second extension portions 44 and 46 are rotatable at predetermined angles, respectively.

The upper cover plate 70 has a pair of support pieces 71 formed by partially cutting the bottom surface at a portion corresponding to the protrusion piece 61. Here, the support piece 71 is disposed adjacent to the protrusion piece 61 to prevent the protrusion piece 61 from being deformed by the coil part 42 of the torsion spring 40. In addition, the upper cover plate 70 is bent along the leading end is formed with a second border 74 is coupled to the first border 64, the engaging piece along the bending line of the second border (74) The locking groove 76 is formed to correspond to the 66. A pair of cutouts 74a are formed in the second edge 74 to correspond to the first edge 64 so that the first and second extension parts 44 and 46 are rotatable at predetermined angles, respectively. have.

Meanwhile, the cutouts 64a and 74a are used as stoppers for determining the positions of the first and second extension parts 44 and 46 of the torsion spring 40.

The operation process of the slide device according to the second embodiment is substantially the same as that described in Figs. 7A to 7C of the first embodiment, and thus description thereof will be omitted.

According to the slide device according to the second embodiment of the present invention, the connecting coil 42c of the coil part 42 is inserted into the receiving groove 61a of the projection piece 61 formed on the lower cover plate 60, and the torsion spring ring. 40 is supported, and cover plates 60 and 70 made of sheet metal are coupled to each other to form the torsion assembly 30. When the torsion assembly 30 slides between the first slide member 10 and the second slide member 20, the torsion spring 40 is stably supported by the coupling member 50 so that the torsion acts stably. .

Third Embodiment

FIG. 10 is an exploded perspective view of the torsion assembly in the slide device for a mobile communication terminal according to the third embodiment of the present invention, and FIG. 11 is an assembly view of the torsion assembly according to the third embodiment of the present invention.

As shown in FIGS. 10 and 11, the torsion assembly 30 according to the third embodiment of the present invention has the first slide member 10 and the second slide member 20 as in the first and second embodiments. And a coupling member 50 having cover plates 60 and 70 coupled to the torsion spring 40 and the torsion spring 40 coupled therebetween.

As shown in FIGS. 10 and 11, the torsion spring 40 extends symmetrically to both the coil part 42 and the coil part 42 wound so as to overlap in a helical manner, so that the first and second slide members 10 may be extended. The first and second extension parts 44 and 46 are hingedly connected to the second and second ends 20 and 20. The coil part 42 is connected to the first extension part 44 to form an upper part of the first coil 42a, and to the second extension part 46 to form a lower part of the second coil 42b and In addition, the first coil 42a and the second coil 42b are connected to each other by a bar connection coil 42c.

Here, the torsion spring 40 has the same structure as that of the first embodiment, and the same reference numerals are used to denote the same components, and detailed description thereof will be omitted.

In the torsion assembly 30 of the third embodiment of the present invention, the lower cover plate 60 of the coupling member 50 is injection-molded with a plastic material, and the upper cover plate 70 is pressed with a plate material.

The lower cover plate 60 is formed with a protrusion 62 having a slot 62a for sandwiching and supporting the bar-shaped connecting coil 42c of the coil part 42 on the bottom surface thereof. Is formed extending, the rib portion 63 is formed with a cutting groove (63a) for allowing the first and second extensions (44, 46) to rotate at a predetermined angle, respectively. In addition, the lower cover plate 60 is provided with a plurality of locking jaws 65 at regular intervals on the rib portion 64.

The upper cover plate 70 is formed with a rim 73 along the distal end, the incision groove 73a for allowing the first and second extensions 44 and 46 to be rotated at a predetermined angle on the rim 73, respectively. ) Is formed. In addition, the upper cover plate 70 is formed with a locking piece 75 to be caught on the locking jaw (65).

On the other hand, the cutting groove (63a) of the lower cover plate 60 and the cutting groove (73a) of the upper cover plate 70 is the position of the first and second extension parts (44, 46) of the torsion spring (40) Used as a stopper to determine.

The operation process of the slide device according to the third embodiment is substantially the same as that described in Figs. 7A to 7C of the first embodiment, and a description thereof will be omitted.

According to the slide device according to the third exemplary embodiment of the present invention, the connection coil 42c of the coil part 42 is inserted into the slot 62a of the protrusion 62 formed in the lower cover plate 60 to torsion spring 40. The supported, the upper cover plate 70 made of sheet metal material and the lower cover plate 60 injection-molded by plastic material is coupled to each other to form the torsion assembly 30. When the torsion assembly 30 slides between the first slide member 10 and the second slide member 20, the torsion spring 40 is stably supported by the coupling member 50 so that the torsion acts stably. .

 Fourth Embodiment

12 is an exploded perspective view of the torsion assembly in the slide device for a mobile communication terminal according to the fourth embodiment of the present invention, Figure 13 is an assembly view of the torsion assembly according to the fourth embodiment of the present invention.

12 and 13, the torsion assembly 30 according to the fourth embodiment of the present invention, like the first, second, and third embodiments, has the first slide member 10 and the second slide member ( 20 and a coupling member 50 having cover plates 60 and 70 coupled to the torsion spring 40 and the torsion spring 40 coupled therebetween.

As shown in FIGS. 12 and 13, the torsion spring 40 extends symmetrically to both the coil part 42 and the coil part 42 wound so as to overlap in a helical manner, and thus the first and second slide members 10 are disposed in the torsion spring 40. The first and second extension parts 44 and 46 are hingedly connected to the second and second ends 20 and 20. The coil part 42 is connected to the first extension part 44 to form an upper part of the first coil 42a, and to the second extension part 46 to form a lower part of the second coil 42b and In addition, the first coil 42a and the second coil 42b are connected to each other by a bar connection coil 42c.

Here, the torsion spring 40 has the same structure as that of the first embodiment, and the same reference numerals are used to denote the same components, and detailed description thereof will be omitted.

In the torsion assembly 30 of the fourth embodiment of the present invention, the lower cover plate 60 of the coupling member 50 is injection-molded with a plastic material, and the upper cover plate 70 is pressed with a plate material.

The lower cover plate 60 is formed with a protrusion 62 having a slot 62a for sandwiching and supporting the bar-shaped connecting coil 42c of the coil part 42 on the bottom surface thereof. ) Is formed to extend, and the rib portion 63 is formed with a cutting groove 63a for allowing the first and second extension portions 44 and 46 to rotate at predetermined angles, respectively. The lower cover plate 60 is provided with a plurality of locking protrusions 67 at regular intervals on the rib portion 64.

The upper cover plate 70 is formed with a rim 73 along the distal end, the incision groove 73a for allowing the first and second extensions 44 and 46 to be rotated at a predetermined angle on the rim 73, respectively. ) Is formed. The upper cover plate 70 has a locking groove 77 into which the locking protrusion 67 is inserted into the edge 73.

According to the slide device according to the fourth embodiment of the present invention, similarly to the third embodiment, the connection coil 42c of the coil portion 42 is inserted into the slot 62a of the protrusion 62 formed on the lower cover plate 60. The torsion spring 40 is inserted and supported, and the upper cover plate 70 made of sheet metal material and the lower cover plate 60 made of plastic material are coupled to each other to form the torsion assembly 30. When the torsion assembly 30 slides between the first slide member 10 and the second slide member 20, the torsion spring 40 is stably supported by the coupling member 50 so that the torsion acts stably. .

Although the present invention has been described in detail with reference to embodiments and various modifications, the present invention is not limited to these embodiments and modifications, and various modifications can be made without departing from the spirit of the invention. have.

1 is a perspective view of a typical slide type mobile communication terminal,

2 is a plan view of a slide device for a mobile communication terminal according to the prior art;

3a and 3b is an operation of the slide device according to the prior art,

4 is a plan view of a slide device for a mobile communication terminal according to the present invention;

5 is an exploded perspective view showing a torsion assembly of a slide device for a mobile communication terminal according to a first embodiment of the present invention;

6a to 6c is a provisional assembly and assembly view of the torsion assembly according to the first embodiment of the present invention,

7a to 7c is an operating state diagram of the torsion assembly according to the first embodiment of the present invention,

8 is an exploded perspective view of a torsion assembly in a slide device for a mobile communication terminal according to a second embodiment of the present invention;

9 is a torsion assembly assembly according to a second embodiment of the present invention,

10 is an exploded perspective view of a torsion assembly in a slide device for a mobile communication terminal according to a third embodiment of the present invention;

11 is a torsion assembly assembly according to a third embodiment of the present invention,

12 is an exploded perspective view of a torsion assembly in a slide device for a mobile communication terminal according to a fourth embodiment of the present invention;

13 is an assembly view of a torsion assembly according to a fourth embodiment of the present invention.

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

10: first slide member 20: second slide member

30: torsion assembly 40: torsion spring

42: coil portion 44: first extension portion

46: second extension 50: coupling member

60: lower cover plate 61: protrusion

62: protrusion 63: rib

64: first border 65: jamming jaw

66: jamming piece 67: jamming projection

70: upper cover plate 72: support piece

73: border 74: second border

75: locking piece 76,77: locking groove

Claims (14)

A first slide member fixed to the lower body of the mobile communication terminal, a second slide member fixed to the upper body of the mobile communication terminal and slidably coupled to the first slide member, and the second slide member being the first slide member. In the slide device for a mobile communication terminal comprising a torsion assembly for providing a torsion to the second slide member when the slide is moved relative to the slide member, The torsion assembly is spirally overlapped with a torsion spring having a coil part having a bar-shaped connecting coil formed at the center and extending to both sides of the coil part and selectively hinged to the first and second slide members; And a coupling member having a lower cover plate into which the bar-shaped connecting coil is inserted to support the coil part, and an upper cover plate coupled to the lower cover plate. The method of claim 1, The torsion springs are connected to the first and second coils of the coil part from the first and second extension parts to form upper and lower parts, and the ends of the first coil and the second coil are connected to each other by a bar connection coil to form an integrated structure. Slide device for a mobile communication terminal. The method of claim 2, Wherein the torsion spring is the intersection of the first and second extensions are formed before the mounting member is intersected with each other, the first and second extensions are characterized in that each forming a predetermined angle with respect to the vertical center line perpendicular to the intersection point Slide device for a mobile communication terminal. The method of claim 3, wherein The bar connection coil is a slide device for a mobile communication terminal, characterized in that formed to be perpendicular to the vertical center line. The method according to claim 1 or 2, The lower cover plate has a protrusion formed on the bottom surface, a slot is formed in the protrusion portion, the bar connection coil slide device, characterized in that the coupling is fitted. The method of claim 1, The lower cover plate is formed with a first edge along the leading edge, the first edge is formed with an incision that allows each of the first and second extensions to rotate at a predetermined angle, The upper cover plate is formed with a second edge coupled to the first edge along the leading edge, characterized in that the second edge is formed with a cut-out that allows the first and second extension portions to rotate at a predetermined angle, respectively Slide device for communication terminal. The method of claim 6, A plurality of engaging pieces are formed at regular intervals along the first edge end, A slide device for a mobile communication terminal, characterized in that a plurality of engaging grooves formed to correspond to the engaging pieces respectively formed on the second edge. The method of claim 1, The lower cover plate is a slide device for a mobile communication terminal, characterized in that to form a projection piece to have a receiving groove by partially cutting the bottom surface, the bar connection coil is fitted. The method of claim 8, The upper cover plate is a slide device for a mobile communication terminal, characterized in that a pair of support pieces which are partially cut in correspondence with the projection pieces on the bottom surface, bent to be arranged adjacent to the projection pieces. 7. The method according to claim 1 or 6, The lower cover plate and the upper cover plate is a slide device for a mobile communication terminal, characterized in that produced by pressing the plate material. A first slide member fixed to the lower body of the mobile communication terminal, a second slide member fixed to the upper body of the mobile communication terminal and slidably coupled to the first slide member, and the second slide member being the first slide member. In the slide device for a mobile communication terminal comprising a torsion assembly for providing a torsion to the second slide member when the slide is moved relative to the slide member, The torsion assembly is spirally wound to overlap the torsion spring having a coil portion having a bar-shaped connection coil in the center and symmetrically extended to both sides of the coil portion and selectively hinged to the first and second slide members. and, A coupling member having a lower cover plate into which the bar-shaped connecting coil is inserted to support the coil part, and an upper cover plate coupled to the lower cover plate, The lower cover plate has a rib portion extending along the tip, the rib portion is formed with a cutting portion to enable the first and second extension portions to rotate at a predetermined angle, The upper cover plate is formed with a rim along the tip, the slide device for a mobile communication terminal, characterized in that the first and second extensions are formed in the cutting portion to be rotated at a predetermined angle, respectively. The method of claim 11, A plurality of locking jaws are formed at regular intervals in the rib portion of the lower cover plate, Slider for a mobile communication terminal, characterized in that formed on the rim of the upper cover plate corresponding to each of the locking step formed a plurality of engaging pieces coupled to the locking step. The method of claim 11, A plurality of locking projections are formed at regular intervals in the rib portion of the lower cover plate, Slider for a mobile communication terminal, characterized in that formed on the rim of the upper cover plate corresponding to each of the locking projections are formed with a plurality of locking grooves into which the locking projections are inserted. The method according to any one of claims 11 to 13, The upper cover plate is pressed into a plate, The lower cover plate is a slide device for a mobile communication terminal, characterized in that the injection molding of plastic material.

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