KR20040102680A - Slide track of sliding type cellular phone - Google Patents

Abstract

PURPOSE: A slide track of a sliding-type mobile phone is provided to stably move an upper body and maintain elastic restoration force of a guide rail as it is. CONSTITUTION: Both ends of a guide rail(40) are fixed at a lower surface of an upper body. The guide rail(40) is formed by bending a metal plate with self-elasticity to form channels(41L,41R) in a longitudinal direction at both sides thereof. A fixing block(50) is fixed at an upper surface of a lower body and includes flange portions(51L,51R) which are insertedly coupled to the channels(41L,41R) of the guide rail(40). Balls(61-64) are disposed in insert holes(52) formed at both sides of the flange portions(51L,51R) of the fixing block(50). Each outer circumferential portion of the balls(61-64) is exposed outwardly of the flange portions(51L,51R), so that when the upper body is moved up and down, the balls(51L,51R) are rolled, contacting with wall surfaces of the channels(41L,41R).

Description

SLIDE TRACK OF SLIDING TYPE CELLULAR PHONE}

The present invention relates to a sliding type mobile phone, and more particularly, to a sliding track of a sliding type mobile phone for slidably coupling the upper body from the lower body in the vertical direction.

In general, a portable telephone is a wireless communication device that can carry a hand or body, and carry a call, and has various forms, such as a flip type having a button cover and a slimmer folding type. Produced and sold.

In addition, recently, a sliding type flip open / close device (application number 20-1999-0002860, publication number 2000) which can conveniently open and close a mobile phone with one hand and can reduce the overall size by separating the screen display unit and button operation unit. -0017402) are published.

As shown in FIG. 1, the sliding type opening / closing device of the sliding type disclosed in Publication No. 2000-0017402 includes a main body 2 including various dials, a sliding type opening and closing with respect to the main body 2, and an earphone and It consists of the head part 1 containing a liquid crystal display etc. 2 and 3, concave grooves are formed on both side surfaces of the main body 2 to form a groove rail 5, and along the groove rail 5 on the inner side of the head part 1. Protruding rails 4 are provided to be slidable. In addition, the upper end of the groove rail 5 is closed to inhibit the upward movement by the protruding rail 4, a plurality of leaf springs (3) are mounted on the groove rail 5 side of the main body 2 at regular intervals, On the protruding rail 4 side of the head 1 is characterized in that the concave groove 6 for receiving the leaf spring (3) is formed.

Accordingly, in the state where the head 1 is mounted on the main body 2, the leaf spring 3 of the main body 2 is matched to the concave groove 6 of the head 1 so that the main body with respect to the head 1 is mounted. (2) does not deviate. Further, in this state, when the head portion 1 is lowered while shaking slightly, the main body 2 descends due to its own weight, and the leaf spring 3 of the main body 2 continues to form the concave groove 6 of the head portion 1. ), The main body 2 is lowered.

As a result, the head 1 can be opened by sliding the head 1 from the main body 2 with one hand, which is convenient to use, and there is an advantage of reducing manufacturing costs by not using an expensive hinge device.

However, in the conventional sliding flip opening and closing device of the mobile phone, since the plurality of leaf springs 3 are mounted at regular intervals on the groove rail 5 side of the main body 2, the sliding of the head part 1 is not smoothly performed. There is a disadvantage.

In addition, there is a fear that the elastic force of the leaf spring (3) is easily lowered due to the repeated sliding operation, which causes a slight gap between the main body (2) and the head (1) without sliding smoothly. ) Is generated and twists from side to side.

The present invention is to solve this problem; It is an object of the present invention to improve the slide coupling structure of the mobile phone to provide a slide track of a sliding type mobile phone that can prevent the gap between the upper body and the lower body and at the same time maintain their coupling state more robustly.

1 is a front view showing a flip opening and closing device of a conventional sliding type mobile phone.

2 is a bottom view of a conventional sliding type mobile phone.

3 is a cross-sectional view taken along the line III-III of FIG. 1.

Figure 4 is a perspective view showing the front structure of the sliding type mobile phone to which the present invention is applied, showing a state in which the upper body and the lower body is matched.

5 shows a state in which the upper body of the mobile phone according to the present invention is slid upward.

6 is an exploded perspective view showing the back structure of the mobile phone according to the present invention.

FIG. 7 is a cross-sectional view taken along line VII-VII of FIG. 6, illustrating a coupling state of the upper body and the lower body.

8 is an exploded perspective view showing an extract of a slide track according to the present invention.

9 is a perspective view showing a part of the cut state of the slide track according to the present invention.

FIG. 10 is a cross-sectional view taken along line VII-VII of FIG. 9.

FIG. 11 illustrates a state of locking the slide track in a state where the upper body and the lower body are aligned (the upper body is lowered to the lower side as much as possible).

Figure 12 shows the locking state of the slide track in a state where the upper body is as far upward as possible.

* Description of the symbols for the main parts of the drawings *

10. Lower Body 20. Upper Body

30.Slide track 40.Guide rail

41L, 41R. Channel 42. Groove

43a, 43b, 44a, 44b..locking groove 50..fixed block

51L, 51R .. Flange 61 ~ 64.

The present invention for achieving this object is;

A lower body having a keypad provided on an upper surface, an upper body mounted on an upper portion of the lower body and provided with an LCD screen on an upper surface, and a pair of slides arranged between the upper body and the lower body to fasten the upper body in a sliding manner. In the sliding type mobile phone with a track,

The sliding track; Both ends are fixed to the lower surface of the upper body and both sides of the guide rail formed by bending a metal plate having its own elastic force to form a channel in the longitudinal direction, and is fixed to the upper surface of the lower body and fitted to the channel of the guide rail on both sides The fixed block is provided with a coupling coupled to the insert hole formed on both sides of the flange portion of the fixed block, respectively, the outer peripheral portion of the flange of the fixed block is exposed to the outside of the channel wall of the guide rail when the upper body moves up and down It characterized in that it comprises a steel ball in contact with the cloud movement.

In addition, the channel wall surface of the guide rail is characterized in that a groove having an arc-shaped cross section (가이드 形 斷面) in the longitudinal direction to guide the rolling motion of the steel balls.

In addition, the steel balls are disposed to correspond to the front and rear sides of the flange portion of the fixed block; The upper and lower ends of the guide rail channel are formed in the shape of the engaging groove of the arc shape so that the steel ball outside the groove is seated in the state in which the upper body is raised or lowered to the maximum, the upper body is raised to the maximum Or it is maintained in a down state.

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

4 to 6, the sliding type mobile phone according to the present invention, the lower body 10 is provided with a variety of key buttons, the upper body of the lower body 10 is mounted on the upper surface of the LCD screen 21 The upper body 20 and a pair of slide tracks 30 for fastening the upper body 20 in a slide manner on the lower body 10 are provided.

The lower body 10 forms the appearance of a mobile phone, and is embedded with a PCB (not shown). In addition, a membrane keypad 11 and a microphone 12 are provided at an upper portion of the lower body 10, and a battery 13 is detachably mounted at a lower portion of the lower body 10.

In addition, the upper body 20 is mounted to be slidably moved up and down in the lower body 10 via a pair of slide tracks 30, including a liquid crystal display (LCD) 21 and earphones 22, etc. This is provided. Accordingly, the sliding type mobile phone is maintained in the exposed state of the LCD screen 21 of the upper body 20 even when not talking.

On the other hand, as described above, the slide track 30 is arranged in a pair between the upper body 20 and the lower body 10 to fasten the upper body 20 in a slide manner, the detailed structure thereof is as follows Same as

First, as shown in FIGS. 6 and 7, the slide track 30 is provided on the upper surface of the guide rail 40 and the lower surface of the lower body 10, which are fixed in the longitudinal direction on the lower surface side of the upper body 20. The fixed block 50 is fixed and both sides are inserted into the guide rail 40 to be coupled with a margin, and are disposed on both sides of the fixed block 50, the shangdong of the upper body 20 (arrow A direction or arrow B direction) ) And steel balls (see Fig. 8; 61 to 64) that move in rolling motion while rubbing against the inner wall of the guide rail 40.

Referring to FIGS. 7 and 8, the guide rails 40 are fixed to the lower and upper ends of the upper body 20 by the screws 70 and the channels 41L and 41R are longitudinally formed at both sides thereof. It is made by bending a metal plate having its own elastic force to be formed. The screw through hole 45 is drilled in the upper and lower ends of the guide rail 40 to fix the screw 70. And grooves 42 for guiding the rolling motion of the steel balls (61 ~ 64) disposed in the fixed block 50 is provided in the longitudinal direction on the wall 41L (41R) of the guide rail 40. The groove 42 is formed to have an arc-shaped cross section (see Fig. 10) in order to minimize the frictional resistance of the steel balls (61 ~ 64). In addition, the steel balls 61 and 62 are mounted on the upper and lower end walls of the channels 41L and 41R of the guide rail 40 while leaving the grooves 42 in the state where the upper body 20 is raised or lowered to the maximum. The upper and lower locking grooves 43a and 43b and 44a and 44b are formed to correspond to each other. That is, when the upper body 20 is pushed up to the maximum, the upper steel balls 61 and 62 of the fixing block 50 are seated in the upper locking grooves 43a and 43b while leaving the grooves 42, and vice versa. When the main body 20 is pushed down to the maximum, the lower steel balls 63 and 64 of the fixing block 50 are seated in the lower locking grooves 44a and 44b while leaving the grooves 42. The upper and lower locking grooves 43a, 43b, 44a and 44b also have arc-shaped cross sections so that the steel balls 61 to 64 remain firmly seated, and thus, without applying artificial force, The slide movement of the main body 20 is stopped.

8 to 10, the fixing block 50 is firmly fixed to the upper surface of the lower body 20 by a screw, and the channels of the guide rails 40 are formed at both sides of the fixing block 50. The flange portions 51L and 51R which are fitted to 41L and 41R and which prevent the vertical play with the guide rail 40 are provided. Reference numeral "53" is a female screw hole processed in the center of the fixed block 50, the screw is coupled to the female screw hole 53 is maintained in the fixed block 50 is fixed to the lower body (10). Therefore, the flange portions 51L and 51R of the fixed block 50 fixed to the lower main body 10 are held in the state coupled to the inside of the channels 41L and 41R of the guide rail 40, so that the upper main body ( 20) can slide up and down.

In addition, the insert holes 52 are drilled in the flange portions 51L and 51R of the fixed block 50 so that steel balls 61 to 64 (aka, steel balls) can be arranged in a relaxed manner. The insert holes 52 are formed so as to correspond to the front and rear sides of the flange portions 51L and 51R, that is, four locations, and four steel balls 61 to 64 are also arranged. These steel balls 61 to 64 are disposed so that a portion of the outer circumference thereof is exposed to the outside of the flange portions 51L and 51R so as to contact the wall surface of the guide rail 40 channels 41L and 41R when the upper body 20 moves up and down. do. For this purpose, the insert hole 52 is drilled to penetrate through the flange portions 51L and 51R, and it is preferable to arrange the steel balls 61 to 64 therewith.

Next, the operation of the slide track according to the present invention configured as described above and the effects thereof will be described.

First, as shown in FIG. 4, in a state where the upper body 20 descends to the maximum and is aligned with the lower body 10, the upper body 20 is maintained in a state completely covering the upper portion of the lower body 10. . Accordingly, the keypads 11 are not exposed to the outside, whereas only the LCD screen 21 of the upper body 20 is exposed to the outside. As shown in FIG. 11, the upper steel balls 61 and 62 of the fixed block 50 are held in the upper locking grooves 43a and 43b of the guide rail 40, thereby maintaining the upper body 20. ) Is kept in registration with the lower body 10 and at the same time does not slide without artificial force.

When the user pushes the upper body 20 upward in order to make a call in this state, the upper steel balls 61 and 62 of the fixing block 50 are released from the upper locking grooves 43a and 43b and continue to guide. The rail 40 slides upward with the upper body 20 while being guided through the flange portions 51L and 51R of the fixed block 50.

At this time, the upper steel balls 61 and 62 of the fixing block 50 can be released from the upper locking grooves 43a and 43b because the guide rail 40 is bent through a metal plate having its own elastic force. to be. In addition, since the steel balls 61 to 64 of the fixed block 50 move in surface contact with the channels 41L and 41R grooves 42 of the guide rail 40, the guide rail together with the upper main body 20. The sliding movement of 40 proceeds smoothly.

As illustrated in FIG. 12, the sliding movement toward the upper side of the upper main body 20 is performed by the lower steel balls 63 and 64 of the fixed block 50 having the lower locking grooves 44a and 44b of the guide rail 40. You can proceed until you get elastically. Accordingly, the upper body 20 is maintained in a raised state from the lower body 10 and at the same time the keypad 11 of the lower body 10 is exposed to the outside to make a call or receive an incoming call (FIG. 5). Reference).

On the other hand, after finishing the call, when the user pushes the upper body 20 downward, the lower grooves (63) (64) of the fixed block (50) from the lower locking groove (44a, 44b) continues to guide rail ( 40 is guided through the flanges 51L and 51R of the fixed block 50 and slides downward with the upper body 20.

In this case, the lower steel balls 63 and 64 of the fixing block 50 can be released from the lower locking grooves 44a and 44b because the guide rail 40 is bent through a metal plate having its own elastic force. to be.

In addition, the sliding movement to the lower side of the upper body 20 when the upper steel balls 61, 62 of the fixed block 50 is elastically caught in the upper locking grooves (43a) (43b) of the guide rail (40). It proceeds to (see FIG. 11), whereby the upper body 20 is maintained in a state of being matched to the lower body 10, the keypad 11 is not visible (see FIG. 4).

As described in detail above, the slide track of the sliding type mobile phone according to the present invention; Both ends are fixed to the lower surface of the upper body and the guide rail is formed by bending a metal plate having its own elastic force so that the channel is formed in the longitudinal direction on both sides, and the flange is fixed to the upper surface of the lower body and fitted into the channel of the guide rail on both sides It is disposed in each of the fixed block and the insert holes formed on both sides of the flange of the fixed block, the outer peripheral part of the upper and lower parts is exposed to the outside of the flange of the fixed block, the rolling motion while contacting the channel wall of the guide rail when the upper body moves up and down It contains steel balls. Accordingly, when the upper and lower slides of the upper body are moved, the coupling state of the lower body of the upper body is firmly maintained by the flange portion of the fixing block, and there is an effect that the play does not occur in the left and right and up and down directions. In addition, since the steel balls are rolling during the slide movement of the upper body, the movement of the upper body is made more stable, as well as the elastic restoring force of the guide rail is maintained as it is used for a long time has the advantage of excellent product reliability.

Claims (3)

A lower body having a keypad provided on an upper surface, an upper body mounted on an upper portion of the lower body and provided with an LCD screen on an upper surface, and a pair of slides arranged between the upper body and the lower body to fasten the upper body in a sliding manner. In the sliding type mobile phone with a track, The sliding track 30, Both ends are fixed to the lower surface of the upper body 20 and guide rails 40 formed by bending a metal plate having its own elastic force so that channels 41L and 41R are formed in the longitudinal direction on both sides thereof; A fixed block 50 fixed to an upper surface of the lower body 10 and having flange portions 51L and 51R fitted to and coupled to channels 41L and 41R of the guide rail 40 on both sides; Each of the outer circumference is disposed outside the flange portions 51L and 51R of the fixing block 50, and is disposed in the insert holes 52 formed at both sides of the flanges 51L and 51R of the fixing block 50. The slide track of the sliding type mobile phone, characterized in that it comprises steel balls (61 ~ 64) to move in contact with the wall of the channel 41L (41R) of the guide rail 40 when the upper body 20 moves up and down. The method of claim 1, The grooves 42 having arc-shaped cross-sections are formed in the longitudinal direction on the wall surfaces of the channels 41L and 41R of the guide rail 40 to guide the rolling motion of the steel balls 61 to 64. A slide track of a sliding type mobile phone characterized by the above-mentioned. The method of claim 2, The steel balls 61 to 64 are disposed to correspond to both sides before and after the flange portions 51L and 51R of the fixed block 50, The steel balls 61 to 64 outside the groove 42 are seated at upper and lower ends of the guide rail 40 channels 41L and 41R in a state where the upper body 20 is raised or lowered to the maximum. Arc-shaped locking grooves 43a, 43b, 44a, 44b are formed to correspond, Slide the slide of the mobile phone, characterized in that the upper body 20 is maintained in the maximum state or up state.