KR100516741B1 - Hinge Device for Mobile Phone - Google Patents

Abstract

The present invention relates to a clamshell mobile phone which automatically opens and closes a folder, and more specifically, by opening and closing a folder at a desired angle, the user can open and close a folder according to a user's face size and shape. The present invention relates to a hinge device of a mobile phone which enables a user to watch and use various services provided by the mobile phone such as a video at a desired angle.

In the present invention, the hinge device of the mobile phone for connecting the main body and the folder, the fixing member formed on the main body; A rotation member which is formed in the folder and whose ends are rotatably fitted to the fixing member; Power generating means installed in the rotating member and generating power; A clutch disk connected to the power generating means; A clutch cover coupled to the fixing member and in contact with one surface of the clutch disk; Elastic means for applying an elastic force to the clutch cover; Provided is a hinge device for a cellular phone comprising a signal applying unit for driving the power generating means.

According to the present invention as described above by adjusting the angle at which the folder is opened and closed, the user can provide a state of use of the mobile phone according to the size and shape of the user, when enjoying a variety of services, the folder in the eyes of the user desired It is effective to see the LCD screen.

Description

Hinge Device for Mobile Phones

The present invention relates to a clamshell mobile phone which automatically opens and closes a folder, and more specifically, by opening and closing a folder at a desired angle, the user can open and close a folder according to a user's face size and shape. The present invention relates to a hinge device of a mobile phone which enables a user to watch and use various services provided by the mobile phone such as a video at a desired angle.

In general, mobile phones are classified into a flip type in which a button is covered with a cover, and a folder type in which a main body is folded in half, and according to the miniaturization trend, the spread of the folding type mobile phones is increasing.

In a conventional general folding type cellular phone, a folder is hinged to a main body, and the folder is opened and closed by rotating the folder in a forward or reverse direction about the hinge.

In the case of the opening / closing mechanism of a mobile phone widely used in the past, the manual opening and closing structure in which a user directly opens and closes a folder by hand is mostly used, and the folder is automatically opened and closed by using a motor drive to improve user convenience and functionality of the mobile phone. An automatic opening and closing hinge device has also been introduced.

Referring to the attached FIG. 1, a conventional cellular phone that opens and closes both automatically and manually will be described. The cellular phone is composed of a main body 2 and a folder 1, as is well known. 2) and the folder 1 are connected by a hinge device.

The hinge device includes a rotating member 10 connected to the folder 1 and fixed members 30 provided at both sides of the rotating member 10 and connected to the main body 2.

The rotating member 10 and the fixing member 30 are hollow cylindrical members, and a structure for automatically opening and closing the folder 1 is provided inside the hinge device, the power generating means generating a driving force and the A power transmission means for mutually selectively engaging the power generating means, an elastic means for applying a supporting force to the power transmission means, and allowing the power transmission means to be spaced apart when an external force is applied to the folder 1, and the rotation member 10 And a position detecting means for detecting a position and applying a control signal to the power generating means.

The power generating means generates a driving force for rotating the folder 1, and this power generating means is usually composed of a motor 11 and a reduction gear assembly 12 for reducing the rotational force of the motor 11.

That is, the motor 11 is connected to a signal applying unit (not shown) provided on one side of the main body 2, and in response to the signal applying unit, the motor 11 receives power supply from a battery pack normally mounted in a mobile phone. , Generate a predetermined rotational force in the reverse direction.

The reduction gear assembly 12 is configured at the output end of the motor 11, and the reduction gear assembly 12 is configured by a plurality of planetary gear groups (not shown) to reduce the rotational force of the motor 11 at a constant ratio. This planetary gear group has a deceleration ratio of a certain ratio to simultaneously perform the functions of deceleration and reversal prevention.

Therefore, the power generating means rotates the output stage with the driving force generated in the motor 11 decelerated through the planetary gear group.

On the other hand, the power transmission means is largely composed of the first cam member 22 and the second cam member 23, the first cam member 22 is tapered on both sides so that the center portion protrudes, the second cam member ( 23 is tapered inwardly so that the central portion is recessed. When the first cam member 22 and the second cam member 23 receive the driving force of the power generating means while receiving the elastic support force of the elastic means to be described later, they are mutually restrained to be rotatable with the first cam member 22. When the second cam member 23 is rotated and the folder 1 is manually opened or closed or an external force is applied to the folder 1 during the operation in the automatic mode, the second cam member 23 is configured to be separated from each other.

The power transmission means is configured such that the first cam member 22 is connected to the shaft 13 of the reduction gear assembly 12 and the second cam member 23 is connected to the fixing member 30.

On the other hand, the elastic means is a compression spring 40 formed of a material having excellent elastic strain and restoring force, the compression spring 40 is one end is connected to the groove of the fixing member 30 and the other end is one side of the power transmission means Is connected to.

The elastic means has an elastic support force greater than the driving force generated by the power generating means, by applying the elastic support force to the power transmission means, the first cam member 22 and the second cam member 23 forming the power transmission means. ) Can be selectively restrained or unconstrained.

That is, the compression spring 40 has a first cam member 22 constituting the power transmission means by acting on the power transmission means greater than the power generating means when the folder is opened or closed by the power generating means; The second cam member 23 maintains the state in which the second cam member 23 is bound to each other, and when the folder is opened and closed manually, elastic deformation occurs.

On the other hand, the position detecting means controls the power generating means to correct the phase difference by 30 ° with respect to the opening and closing angle of the folder 0 ° and 150 °.

That is, the position detecting means detects when the rotation member 10 and the power transmission means are in phase, and then controls the power generating means by applying a driving stop signal to the power generating means.

Here, the position sensor of the position sensing means may be a commonly used magnetic sensor or a photo sensor that outputs a predetermined electrical signal by interaction, in addition to the contact switch type for outputting a predetermined electrical signal at the time of mutual contact Can be used as the signal applying unit.

Referring to the operation of the folder drive device of the mobile phone configured as described above are as follows.

First, when the user rotates the folder 1 in the forward or reverse direction to manually open and close the folder 1, the rotation member 10 is rotated in the forward or reverse direction in conjunction with the rotation of the folder (1).

Here, since the rotational force applied to the rotating member 10 is greater than the elastic support force by the compression spring 40, the first cam member 22 and the second cam member 23 are slipped and spaced apart from each other.

That is, the second cam member 23 is applied to the elastic support force from the compression spring 40 installed on one side is selectively restrained with the first cam member 22 connected to the shaft 21 of the reduction gear assembly 12. As described above, when the folder 1 is manually opened and closed as described above, the external force applied to the folder 1 is greater than the elastic bearing force of the compression spring 40 so that the first cam member 22 and the second cam member ( 23 is slipped and spaced apart and at the same time the power generating means to compress and retract the compression spring 40 so that the folder 1 can be opened and closed manually.

On the other hand, in the case of automatically opening the folder 1, when the user operates the signal applying unit provided on one side of the main body 2 to automatically open the folder 1, the signal applying unit generates a predetermined electric signal. It is applied to the power generating means.

Therefore, the motor 11 of the power generating means receives a power supply from the battery pack mounted in the mobile phone to generate a predetermined rotational force in the direction for opening the folder 1, the rotational force of such a motor 11 is It is transmitted to the first cam member 22 connected by the shaft 13.

At this time, since the first cam member 22 and the second cam member 23 are rotated by a predetermined angle to compress the compression spring 40, the first cam member 22 and the second cam member 23 are compressed by the restoring force of the compression spring 40 when the motor 11 is driven. The position is moved horizontally.

Subsequently, the first cam member 22 receives a rotational force of the motor 11 in a state in which the first cam member 22 is restrained from the second cam member 23 installed in the fixing member 30, rather than the driving force of the motor 11. Since the elastic support force of the compression spring 40 is large, the first cam member 22 and the second cam member 23 maintain the constrained state.

Therefore, since the second cam member 23 is connected to the fixing member 30, the first cam member 22 connected to the second cam member 23 is also in a fixed state, so that the motor 11 Will be rotated.

Therefore, since the rotating member 10 on which the motor 11 is mounted is rotated, as a result, the folder 1 is rotated in one direction and moved to an open position.

At this time, when the position sensor installed on the inner circumference of the rotating member 10 and the position sensor installed on the outer circumference of the first cam member 22 are in phase, a predetermined electric signal is applied to the motor 11 to stop driving. As a result, opening of the folder 1 is completed.

On the other hand, when the folder 1 is automatically closed, if the user operates the signal applying unit provided on one side of the main body 2 to automatically close the folder 1, the electric signal generated by the signal applying unit is a motor ( 11) is applied.

At this time, the motor 11 receives power supply from the battery pack mounted in the mobile phone 1 and generates a predetermined rotational force in a direction for shielding the folder 1, and the rotational force of the motor 11 is applied to the output terminal. It is transmitted to the first cam member 22 connected.

Here, since the first cam member 22 is bound to each other by the supporting force of the second cam member 23 and the compression spring 40 connected to the fixing member 30, the first cam member 22 and the first cam member 22 The power transmission means consisting of the two cam members 23 is to maintain a fixed state.

Therefore, since the power transmission means has a fixed state, the outer body of the motor 11 is rotated.

Therefore, the folder 1 having the rotating member 10 on which the motor 11 is mounted is moved in a reverse direction to a shielded position.

Here, when the folder 1 reaches the shielded position, the contact with the main body 2 no longer rotates, so that a load acts on the motor 11.

At this time, since the load acting on the folder 1 is greater than the elastic bearing force of the compression spring 40, the first cam member 22 and the second cam member 23 are slipped and spaced apart from each other, and at the same time, the motor 11 The compression spring 40 is compressed while retreating.

Therefore, the first cam member 22 is rotated by the driving force of the motor 11, and at this time, the position sensor and the inner circumference of the rotation member 10 installed on the outer circumference of the first cam member 22 are provided. When the position sensor is in phase, the stop signal is applied to the motor 11, so that the shielding of the folder 1 is completed.

However, such a conventional clamshell mobile phone has the opening and closing angles of the folder 1 set at 0 ° and 150 °. It was only a simple operation of opening and closing the folder 1 at an angle.

As described above, the conventional mobile telephone in which the folder 1 is opened and closed only at a predetermined angle has some drawbacks.

First, each user using a mobile phone has a different face size and shape, but the conventional mobile phone as described above is opened only at a predetermined angle, so it is not convenient for a user because it cannot provide a use state of a mobile phone suitable for various faces of the user. There was a problem.

In addition, recently, mobile phones providing various services such as IMT2000 have been widely used, and for example, mobile phones providing services such as transmission and reception of pictures and videos or various information or games have been widely used.

Such a mobile phone has to operate the buttons while looking at the LCD screen provided in the folder 1 of the mobile phone, so it is convenient to use it on the floor as if using a laptop computer. Since the opening and closing angles of the folder 1 are set to 0 ° and 150 °, there is a problem that the opening angle of the folder 1 is not easy to see in some cases when the mobile phone is placed on the floor.

In other words, when you use your mobile phone on the floor when you receive services such as photos, videos, games, etc., other bright lights such as sunlight and fluorescent lights may appear on the LCD screen of the folder (1) so that the screen is not clearly visible. At this time, the user had to inconvenience the service while moving the position of the gaze.

Accordingly, the present invention has been made to solve the above problems, in the present invention is to provide a mobile phone that can adjust the opening and closing angle of the folder to provide a user's use state according to the user's face size and shape The purpose is to provide a hinge device.

In addition, even when using a mobile phone on the floor when you enjoy a variety of services do not inconvenience the user, and the hinge device of the mobile phone that allows users to enjoy the service while looking at the LCD screen of the folder at the desired gaze The purpose is to provide.

In addition, the purpose of the present invention is to provide a hinge device for a mobile phone that can be economically effective by reducing the number of parts constituting the hinge device of the mobile phone, thereby reducing manufacturing costs and reducing the number of workers in the production site. .

In order to achieve the above objects, the present invention provides a hinge device for a mobile telephone connecting the main body and a folder, the fixing member formed on the main body; A rotation member which is formed in the folder and whose ends are rotatably fitted to the fixing member; Power generating means installed in the rotating member and generating power; A clutch member connected to the power generating means for transmitting power; Elastic means for applying an elastic force to the clutch member; Provided is a hinge device for a cellular phone, comprising a signal applying unit for driving the power generating means.

The clutch member includes a clutch disk connected to an output end of the power generating means; The clutch cover is coupled to the fixing member and is in contact with one surface of the clutch disk, and the clutch disk is provided with a clutch plate formed of a material having high frictional force, and the clutch cover is installed to be in contact with the clutch plate.

In addition, the power generating means is composed of a motor and a reduction gear assembly coupled to the motor to reduce the rotation ratio.

In addition, the elastic means is characterized in that the compression spring provided in the fixing member.

The signal applying unit is provided with an open button and a close button for rotating the folder in the forward and reverse directions, respectively, and the power generating means is driven to open and close the folder while operating the open button and the close button.

Hereinafter, with reference to the accompanying drawings, an embodiment of a hinge device of a mobile phone of the present invention will be described in detail as follows.

2 is a view illustrating the inside of the hinge device of the mobile phone according to the present invention. Referring to the hinge device of the present invention, the rotating device 110 connected to the folder 100 and the rotating device 110 are described. It is provided on both sides of the) is composed of a fixing member 130 connected to the body (not shown).

Inside the hinge device is provided with a configuration for automatically opening and closing the folder 100, the power generating means is provided in the rotating member 110 to generate a driving force, and the power generated by the power generating means folder 100 It comprises a clutch member for rotating the spring and elastic means for applying an elastic force to the clutch member.

The power generating means generates a driving force for rotating the folder 100. The power generating means is usually composed of a motor (not shown) and a reduction gear assembly 112 connected to the motor to reduce the rotation ratio.

On the other hand, the hinge device of the present invention is provided with an open button (not shown) for opening the folder and a close button (not shown) for closing the folder, respectively, the motor is connected to the buttons to interlock And usually receives a power supply from the battery pack mounted on the mobile phone generates a predetermined rotational force in the forward, reverse direction.

The reduction gear assembly 112 is configured at the output end of the motor, and the reduction gear assembly 112 is configured to reduce the rotational force of the motor at a constant ratio and constitute a plurality of planetary gear groups (not shown). By having a reduction ratio of ratio, it plays a role of deceleration function and reversal prevention at the same time.

A shaft 114 is installed at the output end of the reduction gear assembly 112, and the motor and the reduction gear assembly 112 are firmly coupled to the inside of the rotation member 110.

The power generating means rotates the output stage in a state in which the driving force generated in the motor is decelerated through the planetary gear group.

The clutch member is installed on the shaft 114 at the output end of the reduction gear assembly 112. The clutch member is coupled to the clutch disk 120 and the fixing member 130, and the clutch member is coupled to the clutch. The clutch cover 122 is in contact with one surface of the disk 120.

Here, the clutch disk 120 is provided with a clutch plate 120a formed of a material having high frictional force, and the clutch cover 122 is provided to contact the clutch plate 120a.

The clutch cover 122 is coupled to the inside of the fixing member 130, the clutch cover 122 is installed to receive the elastic support of the elastic means to be described later.

The elastic means is preferably a compression spring 140 formed of a material having excellent elastic strain and restoring force, the compression spring 140 is located in the fixing member 130 to push the clutch cover 122 To exert strength.

That is, the compression spring 140 is a state in which the clutch disk 120 and the clutch cover 122 are in contact with each other by applying an elastic bearing force to the clutch cover 122 when the folder 100 is opened or closed. To keep.

Referring to the operation of the hinge device of the mobile phone configured as described above are as follows.

First, when the user rotates the folder 100 in the forward or reverse direction to manually open and close the folder 100, the rotation member 110 is rotated in the forward or reverse direction in conjunction with the rotation of the folder.

Here, since the rotational force applied to the rotating member 110 is greater than the elastic support force by the compression spring 140, the rotating member 110 is rotated, wherein the clutch disk 120 fixed inside the rotating member 110 ) Is linked with the rotating member (110).

Since the clutch disc 120 rotates together with the rotation member 110 in a state where the clutch cover 122 coupled to the fixing member 130 is in contact, the clutch plate 120a and the clutch cover 122 of the clutch disc 120 are rotated. The friction force is generated at the contact surface of

At this time, since the clutch cover 122 receives the elastic support force by the compression spring 140 and always pushes the clutch disk 120 with a constant force, the clutch plate 120a when the folder 100 is manually rotated as described above. ) And the rotation of the folder 100 is supported by the frictional force generated at the contact surface of the clutch cover 122 so that the open state of the folder 100 can be maintained.

Therefore, the user can open the folder 100 as much as possible and open and close the folder 100 at an angle desired by the user.

On the other hand, in the case of automatically opening the folder 100, the user operates the button for opening provided on one side of the main body.

The open button applies a predetermined electric signal to the motor.

Therefore, the motor receives power supply from the battery pack mounted in the mobile phone and generates a predetermined rotational force in a direction for opening the folder 100. The rotational force of the motor is decelerated by the reduction gear assembly 112. It is transmitted to the clutch disk 120 connected to the shaft 114.

At this time, since the clutch disk 120 is in contact with the clutch cover 122 elastically supported by the compression spring 140, the clutch disk 120 rotates while generating a friction force with the clutch cover 122 when the motor is driven.

At this time, since the clutch disk 120, the motor, and the reduction gear coupling body 112 are coupled to the inside of the rotating member 110, when the clutch disk 120 rotates, the rotating member 110 also rotates.

As described above, when the rotation member 110 rotates, the folder 100 also rotates to open.

At this time, since the clutch cover 122 receives the elastic support force by the compression spring 140 and always pushes the clutch disk 120 with a constant force, when the clutch disk 120 rotates as described above, the folder 100 is rotated. In addition, the rotation of the folder 100 is supported by the frictional force generated at the contact surface of the clutch plate 120a and the clutch cover 122.

The driving of the motor is performed only while the button for opening is pressed, and the driving of the motor is automatically stopped when the user releases the button.

Therefore, while pressing the button, the folder 100 rotates together with the motor, and when the button is released, the folder stops rotating.

At this time, since the clutch cover 122 which is in contact with the clutch disk 120 is receiving the force by the compression spring 140, it is possible to maintain the stopped state when the rotation of the folder 100 is stopped.

Therefore, the user can open the folder 100 at a desired angle by operating the button when receiving a call or receiving various services using the phone.

On the other hand, in the case of automatically closing the folder 100, when the user operates the close button provided on one side of the main body to automatically close the folder 100, the electrical signal generated from this button is applied to the motor, The motor receives a power supply from a battery pack mounted in the mobile phone and generates a predetermined rotational force in a direction for shielding the folder 100.

The rotational force of the motor is decelerated by the reduction gear assembly 112 and transmitted to the clutch disk 120 connected to the shaft 114.

At this time, since the clutch disk 120 is in contact with the clutch cover 122 elastically supported by the compression spring 140, the clutch disk 120 rotates while generating a friction force with the clutch cover 122 when the motor is driven.

At this time, since the clutch disk 120 and the motor, the reduction gear coupling body 112 is coupled to the inside of the rotating member 110, when the clutch disk 120 rotates, the rotating member 110 also rotates. As a result, the folder 100 is also rotated so that the folder 100 is closed.

When the folder 100 comes into contact with the main body, shielding of the folder 100 is completed.

When the folder 100 is closed, the motor is driven only while the user presses the close button to rotate the folder 100, and the clutch cover 122 which is in contact with the clutch disc 120 is compressed the spring 140. Because of the force is to be able to maintain the stopped state of the folder (100).

The present invention can adjust the opening and closing angle of the folder at will according to the user's convenience, there is an effect that can provide a state of use of the mobile phone according to the user's face size and shape.

In addition, even when using a mobile phone on the floor to enjoy a variety of services, the user can enjoy the service while watching the LCD screen of the folder from the desired gaze has the effect of providing convenience to the user.

In addition, since the number of parts constituting the hinge device of the mobile phone is greatly reduced compared to the conventional technology, the manufacturing cost is reduced due to the decrease in the number of parts, and the number of workers at the production site can be reduced, thereby enabling economical effects.

1 is a cross-sectional view showing a hinge device of a conventional cellular phone.

2 is a cross-sectional view showing a hinge device of a mobile phone according to the present invention.

♣ Explanation of symbols for main part of drawing ♣

100: folder 110: rotating member

112: reduction gear assembly 114: shaft

120: clutch disc 120a: clutch plate

122: clutch cover 130: fixing member

140: compression spring

Claims (6)

In the hinge device of a mobile phone to connect the body and the folder, A fixing member formed on the main body; A rotation member which is formed in the folder and whose ends are rotatably fitted to the fixing member; Power generating means installed in the rotating member and generating power for rotating the folder; A clutch member connected to the power generating means for transmitting power; Elastic means for applying an elastic force to the clutch member; And a signal applying portion for driving the power generating means, wherein the power generating means is driven while operating the signal applying portion. The clutch disk of claim 1, further comprising: a clutch disk connected to an output end of the power generating means; And a clutch cover coupled to the fixing member and in contact with one surface of the clutch disk. 3. The hinge device of claim 2, wherein the clutch disc is provided with a clutch plate formed of a material having high frictional force, and the clutch cover is in contact with the clutch plate. The hinge device of a portable telephone according to claim 1, wherein said power generating means comprises a motor and a reduction gear assembly connected to said motor to reduce a rotation ratio. The hinge device of a mobile telephone according to claim 1, wherein said elastic means is a compression spring provided in said fixing member. The hinge device of claim 1, wherein the signal applying unit is provided with an open button and a close button for rotating the folder in the forward and reverse directions, respectively.