KR20030078229A - Cover hinge mechanism of cellular phone - Google Patents

Abstract

PURPOSE: A cover hinge device of a cellular phone is provided to reduce abrasion generated on a hinge module according to a rotation of a cover, and to mount a pickup camera thereon, thereby extending a life of the hinge module and stabilizing an installed state of the pickup camera without possibility of loss. CONSTITUTION: A housing unit(4300) consists of the first housing(4310) and the second housing(4320). The first housing(4310) and the second housing(4320) are fixed into a cover(4200), and one ends thereof are hinge-coupled with a body(4100). A camera housing(4400) is reciprocally coupled between the first housing(4310) and the second housing(4320). A pickup camera(4500) is installed on the camera housing(4400). Clutches(4600) coupled between the second housing(4320) and the body(4100) brake a rotary power having more than a certain level while opening and closing the second housing(4320).

Description

Cover hinge device for mobile phone {COVER HINGE MECHANISM OF CELLULAR PHONE}

The present invention relates to a cover hinge device of a mobile phone, and to reduce the wear generated in the hinge module according to the rotation of the cover to extend the life of the hinge module, it is possible to mount the image communication camera to install the imaging camera It is to stabilize and prevent the loss of the imaging camera.

As an example of a hinge device of a mobile phone, a 'hinging device of a cover type mobile phone' shown in Patent Application No. 10-1998-0046799 will be described.

As shown in Figure 1, it is provided with a hinge device for rotatably connecting the main body and the cover. The hinge device is provided with a switch for switching to call mode or standby mode according to the opening and closing angle of the cover.

2, the hinge module M is mounted on one side of the hinge accommodating part 60, and the hinge means 10 is mounted on the other side of the hinge accommodating part 60.

As shown in the exploded perspective view of FIG. 3, the hinge module M is slid with the housing 1, the first hinge shaft 2 positioned to be inserted into the housing 1, and the first hinge shaft 2. Cam 3 for movement, a stopper 5 assembled to the housing 1 so that the first hinge shaft 2 and the cam 3 do not leave the housing 1, the cam 3 and the stopper ( It is composed of a spring (4) provided between the 5 to provide a force to the cam (3).

The coupling shaft 21 of the first hinge shaft 2 is coupled to the coupling portion 74 of the socket 72 so as to rotate together with the opening and closing of the cover 70, and the first hinge shaft 2 According to the rotational movement, the cam 3 performs a linear reciprocating movement by sliding with the hill 22 of the first hinge shaft 2. In addition, the spring 4 is a compression or expansion movement based on the rotation center axis direction in accordance with the opening and closing of the cover 70.

The hinge means 10 consists of a second hinge shaft 6 and a plate spring 7 supporting the second hinge shaft 6.

The second hinge shaft 6 is assembled with the engaging portion 74 of the socket 72 to serve as a hinge axis, and the plate spring 7 presses the second hinge shaft 6 in the direction of the arrow to support it.

The housing 1 is fully open at one side and partially open at the other side. The guide hole 13 extends in the longitudinal direction on the upper surface 12 of the housing, and the locking holes 15 are formed on both sides thereof.

The first hinge shaft 2 has a coupling shaft 21 assembled with the cover 70 on one side thereof and has a mount 22 on the other side thereof. At this time, a disk-shaped locking portion 25 having a larger diameter than the coupling shaft 21 is formed between the coupling shaft 21 and the mountain portion 22. At this time, the flat shaft 23 and the curved surface 24 are alternately formed at the ends of the coupling shaft 21 to be assembled to the coupling portion 74 of the cover 70 to rotate together.

The cam 3 engaged with the first hinge shaft 2 is provided with a hill portion 31 and a valley portion 32 to allow sliding motion with the first hinge shaft 2, and a guide hole at the top thereof. A guide protrusion 34 moving along 13 is protruded. The guide protrusion 34 makes linear movement of the guide hole 13. In addition, the cam 3 is provided with a fixing protrusion 33 so that one end of the spring 4 is fixed.

And the stopper 5 is provided with hooks 51 so as to lock in the locking hole 15, the hook 51 extends in the axial direction. Guide protrusions 54 for insertion into the guide holes 13 protrude from the top surface of the stopper 5.

The hinge module M configured as described above rotates as the cover 70 is opened and closed with the first hinge shaft 2. At this time, the mountain 22 and the cam 3 of the first hinge shaft 2 is in a sliding motion in close contact with each other, and then the cam 3 compresses or tensions the spring 4 while moving back and forth. Let's do it.

That is, when the cover 70 is closed, the first hinge shaft 2 and the cam 3 remain in close contact, and when the cover 70 is opened about 90 degrees, the first hinge shaft 2 and the cam are closed. The mountain parts 22 and 31 of (3) are in close contact with each other, and the spring 4 is in the most compressed state, and when the cover 70 is opened to the call angle, the spring 4 is again tensioned by the restoring force.

That is, in the closed or open state of the cover 70, the spring 4 maintains the most tensioned state, and when the cover 70 is opened about 90 degrees, the spring 4 maintains the most compressed state.

In this way, the cover 70 can maintain the open state and the closed state with appropriate elasticity, respectively, by the action of the hinge module (M).

By the way, in this hinge device, the mountain portion 22 of the first hinge shaft 2 is coupled with the valley portion 32 of the cam 3, and the first hinge shaft 2 is rotated when the cover 70 is rotated. Is coupled to the valleys 32 again over the ridges 31 of the cam 3, the first hinge shaft 2 and the cam 3 is subjected to a lot of torque and abrasion is severe and damaged in a short time. .

In addition, the conventional hinge device has no structure that can perform an additional function such as mounting an image communication camera in addition to opening and closing the cover 70, so that the imaging camera is coupled to the side of the main body using a flexible circuit unit. Therefore, the imaging camera may protrude to the side of the main body, which may damage the imaging camera, and when the imaging camera is separated from the main body, there is a risk of loss.

The present invention has been made to solve the above problems, the object of the present invention is to reduce the wear caused by the hinge module in accordance with the rotation of the cover to extend the life of the hinge module, it is possible to mount the image communication camera This is to stabilize the installation state of the imaging camera and to prevent the loss of the imaging camera.

1 is a perspective view of an installation state showing a cover hinge device of a conventional mobile phone.

Figure 2 is a cross-sectional view of the coupling hinge of the cover hinge device shown in FIG.

3 is an exploded perspective view of the cover hinge device shown in FIG.

Figure 4 is an exploded perspective view of the cover hinge device according to an embodiment of the present invention.

5 is a cross-sectional view of an installation state of the cover hinge device shown in FIG.

6 and 7 are perspective views of the state of use of the mobile phone shown in FIG.

<Explanation of symbols for main parts of drawing>

4100: main body 4102: rotating ball

4104: square hole 4120: shaft support

4200: cover 4210: insert

4300: housing portion 4310: first housing

4312: first coupling leg 4314: first coupling protrusion

4320: second housing 4322: second coupling leg

4324: hollow 4326: sliding groove

4328: second coupling protrusion 4400: camera housing

4410: guide portion 4412: imaging hole

4414: lever 4500: imaging camera

4600: clutch portion 4610: rotary slip portion

4612: first slip surface 4614: first through hole

4616: hemispherical groove 4618: guide groove

4620: sliding projection 4630: fixed slip portion

4632: second slip surface 4452: second through hole

4636: square protrusion 4640: ball

4650: coupling shaft 4742: annular groove

4654 this ring 4656 screw

4660: compression spring

The present invention for achieving the above object, the housing portion is fixed to the cover, the first housing and the second housing is hinged to the main body; A camera housing slidably coupled to each other between the first housing and the second housing; An imaging camera installed in the camera housing; And a clutch unit coupled between the second housing and the main body and configured to brake against a rotation force of a predetermined level or less during the opening and closing of the second housing.

The following describes a preferred embodiment according to the present invention.

First, the configuration of this embodiment will be described.

4 is an exploded perspective view of the cover hinge device according to the present embodiment, FIG. 5 is a cross-sectional view illustrating an installation state of the cover hinge device shown in FIG. 4, and FIGS. 6 and 7 are perspective views of the mobile phone shown in FIG. 5. .

As shown in the figure, the hinge device according to the present embodiment is secured to the cover 4200, and the first and second housings 4310 and 4320 which are separated from each other by one end hinged to the main body 4100. A housing portion 4300; A camera housing 4400 which is slipably coupled to each other between the first housing 4310 and the second housing 4320; An imaging camera 4500 installed in the camera housing 4400; And a clutch portion 4600 coupled between the second housing 4320 and the main body 4100 to serve as a braking force for a predetermined or less rotational force during the opening and closing of the second housing 4320.

The first housing 4310 may include a first coupling leg 4312 coupled to an insertion portion 4210 formed in the cover 4200, and a first coupling protrusion rotatably coupled to one side of the camera housing 4400. Has (4314). The second housing 4320 has a second coupling leg 4322 coupled to the inserting portion 4210, and a second coupling protrusion 4328 rotatably coupled to the other side of the camera housing 4400.

The first coupling leg 4312 and the second coupling leg 4322 are inserted into the insertion portion 4210 of the main body 4100 and then fixed using a bolt, a nut or a screw.

Also, the first housing 4310 is rotated by fixing the shaft support 4120 to the first housing 4310, and forming a rotation hole 4102 to rotatably couple the shaft support 4120 to the main body 4100. Make it possible to combine.

The camera housing 4400 has a guide portion 4410 on which the imaging camera 4500 is fixed, and a lens of the imaging camera 4500 with the imaging camera 4500 fixed to the guide portion 4410. The imaging hole 4412 is formed to expose the outside, and a lever 4414 for rotating by hand is formed on the outer circumferential surface.

The clutch portion 4600 has a first through hole 4614 penetrating through a center thereof, a flat first slip surface 4612 is formed at one surface thereof, and a first through hole (1) is formed at the first slip surface 4612. 4614, a pair of hemispherical grooves 4616 are formed at opposite locations on the concentric circle, and a guide groove 4618 is formed to connect a pair of hemispherical grooves 4616, and an outer circumferential surface is formed at the center of the second housing 4320. A rotary slip portion 4610 having a sliding protrusion 4620 formed to slide in a sliding groove 4326 formed on an outer circumferential surface of the hollow 4324 to be formed; The second through hole 4452 having the same diameter as the first through hole 4614 passes through the center portion, and a second slip surface 4452 is formed to rub against the first slip surface 4612, and the second slip surface ( A ball 4640 coupled to the hemispherical groove 4616 is fixed to 4632, and a square protrusion 4636 coupled to the square hole 4104 formed in the main body 4100 is disposed on a surface opposite to the second slip surface 4452. A fixed slip portion 4630 is formed; A compression spring 4660 inserted into the hollow 4324 and holding the fixed slip portion 4630 toward the rotary slip portion 4610; A coupling shaft 4650 which passes through the second through hole 4452, the first through hole 4614, and the compression spring 4660, is coupled to the inside of the camera housing 4400, and has an annular groove 4652 formed at its tip; E-ring (4654) coupled to the annular groove (4652) inside the camera housing (4400) to prevent separation of the coupling shaft (4650); And a screw 4656 rotatably fixing the second housing 4320 on the camera housing 4400 side.

Meanwhile, the imaging camera 4500 is connected to and controlled by a computer inside the main body 4100, and the image captured by the imaging camera 4500 is wirelessly transmitted to the base station, thereby performing image communication.

Hereinafter will be described the operation of the cover hinge device of the mobile phone having the configuration as described above.

First, as shown in FIG. 6, when the cover 4200 is lifted up while the cover 4200 is closed to the main body 4100, the first housing 4310 and the second housing 4320 rotate together with the cover 4200. do.

Meanwhile, the rotation slip part 4610 having the sliding protrusion 4620 coupled to the sliding groove 4326 of the second housing 4320 is rotated together with the rotation of the second housing 4320.

On the other hand, the fixed slip portion 4630 having the square protrusion 4634 coupled to the square hole 4104 formed in the main body 4100 is in a state in which rotation is suppressed. Accordingly, slip occurs in the first slip surface 4612 of the rotary slip portion 4610 and the second slip surface 4452 of the fixed slip portion 4630.

At this time, the ball 4640 fixed to the second slip surface 4452 is separated from the hemispherical groove 4616 of the first slip surface 4612 and moves along the guide groove 4618.

By this action, the cover 4200 is opened from the main body 4100.

Then, when the cover 4200 is moved to the open position, the compression spring 4660 enters the hemispherical groove 4616 on the opposite side by a force that grips the rotary slip portion 4610, and the impact sound is 'click'. To me. Since the ball 4640 does not leave the hemispherical groove 4616 within a predetermined torque or less, the cover 4200 maintains the open state.

As such, when the cover 4200 is opened as shown in FIG. 7, the camera housing 4400 is covered by the cover 4200 and then opened. Accordingly, the front image is captured by the imaging camera 4500 through the imaging hole 4412 of the camera housing 4400, and the photographed image is transmitted to the base station through the main body 4100.

Then, in order to photograph the outside direction of the caller with the imaging camera 4500, the lever 4414 is rotated to rotate the camera housing 4400 outward. In this case, since the camera housing 4400 is rotatably coupled between the first housing 4310 and the second housing 4320, the first coupling protrusion 4314 and the second housing 4320 of the first housing 4310 are rotated. Slip phenomenon occurs in the coupling portion with the second coupling protrusion 4328.

In this process, the screw 4330 is rotatably fixed to the second housing 4320 on the camera housing 4400 to secure the coupling state of the camera housing 4400 and the second housing 4320.

On the other hand, when the cover 4200 is closed in a state where the cover 4200 is opened from the main body 4100, the first housing 4310 and the rotary slip part 4610 rotate in the reverse direction together with the cover 4200. In this case, since the fixed slip portion 4630 is fixed to the main body 4100 and does not rotate, slip phenomenon occurs in the first slip surface 4612 and the second slip surface 4452.

Accordingly, the ball 4640 is separated from the hemispherical groove 4616 of the first slip surface 4612 and moves to the opposite hemispherical groove 4616 along the guide groove 4618.

As such, when the cover 4200 is moved to the closed position, the ball 4640 enters the other hemispherical groove 4616 and emits a light impact sound of 'clicking'. Since the ball 4640 does not leave the hemispherical groove 4616 within a predetermined torque or less, the ball 4640 maintains the closed state of the cover 4200.

When the cover 4200 is closed, the camera housing 4400 and the imaging camera 4500 are covered by the cover 4200.

As described above, the present invention includes a housing portion 4300 which is formed of a separate first housing 4310 and a second housing 4320 fixed to the cover 4200 and one end of which is hinged to the main body 4100. , A camera housing 4400 which is slidably coupled between the first housing 4310 and the second housing 4320, an imaging camera 4500 installed in the camera housing 4400, and a second housing 4320. A cover hinge device of a mobile phone including a clutch portion 4600 coupled between a main body 4100 and a braking part with respect to a rotation force below a predetermined level during the opening and closing of the second housing 4320, the cover ( As the rotation of the 4200 reduces the wear generated in the hinge module, the life of the hinge module can be extended, and the image communication camera 4500 can be mounted so that the installation state of the imaging camera 4500 is stable and there is a risk of loss. There is no effect.

In the above, the present invention has been described as an embodiment, but the present invention is not limited to the above-described embodiments, and the present invention is not limited to the above-described embodiments, and has a general knowledge in the field to which the present invention pertains without departing from the gist of the present invention. Anyone who grows up will be able to make various variations.

Claims (4)

A housing part 4300 fixed to the cover 4200 and having a first housing 4310 and a second housing 4320 that are hinged to one end of the main body 4100; A camera housing (4400) coupled to each other so as to be slidably coupled between the first housing (4310) and the second housing (4320); An imaging camera 4500 installed in the camera housing 4400; And A clutch unit 4600 coupled between the second housing 4320 and the main body 4100 to act as a braking force for a predetermined or less rotational force during the opening and closing of the second housing 4320. Cover hinge device of a mobile phone, characterized in that. The method of claim 1, wherein the first housing 4310, the first coupling leg 4312 is coupled to the insertion portion 4210 formed in the cover 4200 and rotatable on one side of the camera housing 4400 A first coupling protrusion 4314 is coupled to be secured; The second housing 4320 has a second coupling leg 4322 coupled to the inserting portion 4210, and a second coupling protrusion 4328 rotatably coupled to the other side of the camera housing 4400. Cover hinge device of a mobile phone, characterized in that. The method of claim 1, wherein the camera housing (4400), the guide portion (4410) to which the imaging camera (4500) is fixed is formed therein; An imaging hole 4412 is formed such that a lens of the imaging camera 4500 protrudes to the outside while the imaging camera 4500 is fixed to the guide part 4410; Cover hinge device of a mobile phone, characterized in that the outer peripheral surface has a lever (4414) for rotating by hand. The method of claim 1, wherein the clutch portion 4600, a first through-hole 4614 penetrating through the center is formed, a flat first slip surface 4612 is formed on one surface, the first slip surface 4612 A pair of hemispherical grooves 4616 are formed at opposing concentric circles about the first through hole 4614, and guide grooves 4618 connecting the pair of hemispherical grooves 4616 are formed on the outer circumferential surface thereof. A rotary slip portion 4610 having a sliding protrusion 4620 formed to slide in a sliding groove 4326 formed at an outer circumferential surface of the hollow 4324 formed at the center of the second housing 4320; A second through hole 4462 having the same diameter as the first through hole 4614 penetrates through a central portion thereof, and a second slip surface 4452 is formed to rub against the first slip surface 4612. A ball 4640 coupled to the hemispherical groove 4616 is fixed to a slip surface 4452, and is coupled to a square hole 4104 formed in the main body 4100 on a surface opposite to the second slip surface 4452. A fixed slip portion 4630 in which the square protrusions 4636 are formed; A compression spring 4660 inserted into the hollow 4324 and holding the fixed slip portion 4630 toward the rotary slip portion 4610; Coupling shaft coupled to the inside of the camera housing (4400) through the second through hole (4634), the first through hole (4614) and the compression spring (4660) is formed in the front end (462) 4650); E-ring (4654) is coupled to the annular groove (4652) inside the camera housing (4400) to prevent the separation of the coupling shaft (4650); And And a screw (4330) rotatably fixing the second housing (4320) at the camera housing (4400) side.