KR20010097896A - Auto-folder Safety System of celluar phone - Google Patents

Abstract

The present invention provides convenience for use by automatically opening and closing the folder of the mobile phone and at the same time simplifying the parts to enable the miniaturization and lightening of the device, and at the same time increase the degree of freedom of design of the mobile phone Automatic folder safety device.

The automatic folder safety device of the cellular phone is a folding type cellular phone in which a hinge shaft of a folder is fitted into a cylindrical housing of a main body, and a folder is rotated and folded or unfolded from the main body.

A switch configured at one side of the main body and outputting a predetermined electric signal by a user's operation force;

A driving motor installed at a predetermined position inside the main body and selectively connected to an output end of the switch to generate a forward or reverse driving force;

A drive gear coupled to the output shaft of the drive motor to prevent reversal;

A clutch gear having a predetermined size groove in which a pair of leaf springs are fixed at a predetermined interval on one side of the folder which is engaged with the drive gear to receive power transmission and is opposed to one end of the hinge shaft of the folder;

The hinge gear is coupled to the hinge shaft end opposite to the clutch gear and is inserted into the recess to form a hinge shaft having a rectangular shaft on which both sides are supported by a leaf spring.

The automatic folder safety device of the mobile phone according to the present invention constructed and operated as described above has a driving force transmitted from the driving motor when the external force acts on the folder while the folder is automatically opened and closed by a user's switch operation. Since it is disconnected from the gear, it prevents the overload of the driving motor and the damage of the device.

Description

Auto-folder Safety System of celluar phone

The present invention relates to an automatic folder safety device for a mobile phone in which a folder is automatically opened and closed by a drive motor. More specifically, the number of parts is reduced and the driving circuit is protected by simultaneously acting as a power transmission device and a safety device for opening and closing a folder. The present invention relates to an automatic folder safety device of a mobile phone.

In recent years, the demand for mobile phones has been explosively increasing due to the convenience of use, and they are becoming smaller and more versatile to satisfy various needs of consumers.

In general, a mobile phone has a bar (BaR) type in which the number (function) button is exposed to the outside according to its shape, a flip type having a cover shielding the button with a cover, and a main body folded in half. Paper is classified into a folder type, and in recent years, the spread of folder type mobile phones has been increasing in accordance with the miniaturization trend.

1 is a perspective view showing a general folding type cellular phone according to the prior art.

Conventional folder 120 type mobile phone 100 is composed of a main body 110 and a folder 120, the main body 110 usually includes a number (function) button and a microphone, the handset inside Various components are built in, and a battery pack for power supply is mounted on one side.

The folder 120 includes a display window for displaying various call information and function information, a speaker, and the like, as well as various components.

The folder 120 type mobile phone 100 has one end of the folder 120 supported by the hinge means with respect to the main body 110, and is opened and closed by rotating the forward or reverse direction about the hinge means. .

That is, the opening and closing structure for opening and closing the folder 120 of the mobile phone 100 is usually made by the configuration as shown in FIG.

The coil spring 112, which is an elastic member, is fixed to the shielded end portion of one side in the hollow housing 111 formed integrally with the main body 110, that is, the one side of the coil spring 112, namely, On the open end side of the housing 111, a male coupler 113 tapered on both sides is fixed so that the center portion protrudes.

The open end of the housing 111 has a connecting portion 115 having one end connected to the folder 120, and the other end of the housing 111 having a shape corresponding to the end of the male coupler 113. The tapered female coupler 114 is formed, and the male coupler 113 and the female coupler 114 are formed so that the tapered portions are fitted to each other.

The male coupler 113 and the female coupler 114 serve as hinge shafts, and the female coupler 114 interlocks when the folder 120 rotates, and the male coupler 113 is connected to the coil spring 112. When the female coupler 114 is rotated by a predetermined angle or more, as shown in FIG. 3, the male coupler 113 is pushed backward while compressing the coil spring 112. Will be

Therefore, when the folder 120 is opened, when the rotation angle of the female coupler 114 interlocked with the folder 120 is smaller than the taper angle of the male coupler 113 and the female coupler 114, the coil spring 112 is used. Coupling force is applied between the male coupler 113 and the female coupler 114 by the elastic force of the) so that the folder 120 is returned to its original position and kept closed, but the rotation angle of the female coupler 114 is tapered. In a larger case, the female coupler 114 rotates about 180 ° so that the female coupler 113 is recombined with the male coupler 113.

On the contrary, even when the folder 120 is closed, when the rotation angle of the female coupler 114 is smaller than the taper angle between the male coupler 113 and the female coupler 114, the coil spring 112 tries to return to the original position. A large force is applied to keep the folder 120 open, but when the rotation angle of the female coupler 114 is greater than the taper angle, the male coupler 113 and the female coupler 114 rotate rapidly by a certain angle or more. Because the tapered portion of the recombination folder 120 is closed.

However, in the conventional folder 120 type mobile phone 100 as described above, since the folder 120 is relatively heavy because several components are embedded therein, the flip type mobile phone 100 easily flips with one hand. Unlike the one that can be opened and closed, opening and closing the folder 120 with one hand was virtually impossible.

Therefore, the conventional folder 120 type mobile phone 100 is opened and closed manually, so in order to use the mobile phone 100, the folder 120 is held by the other hand while holding the main body 110 with one hand. Must be opened.

Therefore, when either one of the hands is not free, for example, when holding an object in one hand or driving, the opening and closing operation of the folder 120 can not be performed smoothly, there was a problem that causes consumer complaints about the product. .

In addition, even when closing the folder 120, if the impact due to the contact between the folder 120 and the main body 110 is large, since the built-in components may be damaged and damaged, this also requires a user's careful attention, which is also inconvenient in use It was causing.

In order to improve this, in recent years, a device has been proposed to open and close the folder 120 more easily. A representative example is an automatic opening and closing device using a driving device.

That is, by operating a switch such as a motor by operating a switch with one hand to allow the folder 120 to be automatically opened and closed, the most consideration here is that not only automatic but also manual must be possible at the same time.

In other words, the opening and closing operation of the folder 120 is not only performed automatically but unconditionally, the folder 120 must be opened and closed manually.

However, in the currently applied technology, the opening and closing operation of the folder 120 can be performed only manually or automatically, so that its use is inconvenient, and in particular, in the case of automatic, the power transmission means and the folder ( Since a switch for recognizing the position of 120 and determining the rotation direction of the driving device and a brake for fixing the folder 120 are required, the size or weight of the mobile phone increases when all the components are applied. As a result, there is a problem in that it is reversed to the recent weight reduction and miniaturization of the device.

The present invention aims to correct the above problems, and the present invention has a main object to provide convenience for use by allowing the folder to be opened and closed automatically and manually.

In addition, the present invention has another object to simplify the parts to enable the miniaturization and light weight of the device, and at the same time increase the degree of freedom of design.

1 is a perspective view showing a folding cell phone according to the prior art,

FIG. 2 is a cross-sectional view illustrating a line “A-A” of FIG. 1;

3 is a cross-sectional view showing another embodiment of FIG.

4 is a perspective view showing a folding mobile phone according to the present invention;

5 is a configuration diagram schematically showing a power transmission connection relationship between a drive motor and a folder according to the present invention;

FIG. 6 is a cross-sectional view illustrating a line “B-B” of FIG. 5;

7 is a cross-sectional view showing the connection relationship between the clutch gear and the hinge gear during power transmission from the drive motor according to the present invention;

8 is a cross-sectional view showing the connection relationship between the clutch gear and the hinge gear according to the manual operation of the folder according to the present invention;

FIG. 9 is a configuration view of FIG. 5 viewed from another direction; FIG.

FIG. 10 is a cross-sectional view illustrating the line “C-C” of FIG. 9.

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

1: mobile phone 10: main body

11: housing 20: folder

21: hinge axis 30: switch

40: drive motor 41: output shaft

50: drive gear 60: clutch gear

61: groove 62: leaf spring

70: hinge gear 71: connecting shaft

B: Battery Pack

In order to achieve the above object, the present invention provides a folding mobile phone in which the hinge shaft of a folder is inserted into a cylindrical housing of a main body, and the folder is rotated or unfolded from the main body.

A switch configured at one side of the main body and outputting a predetermined electric signal by a user's operation force;

A driving motor installed at a predetermined position inside the main body and selectively connected to an output end of the switch to generate a forward or reverse driving force;

A drive gear coupled to the output shaft of the drive motor to prevent reversal;

A clutch gear having a predetermined size groove in which a pair of leaf springs are fixed at a predetermined interval on one side of the folder which is engaged with the drive gear to receive power transmission and is opposed to one end of the hinge shaft of the folder;

The hinge gear is coupled to the hinge shaft end opposite to the clutch gear and is inserted into the recess, characterized in that the hinge shaft is formed with a rectangular shaft that is supported by both sides of the leaf spring.

Hereinafter, described in detail with reference to the accompanying drawings a preferred embodiment of the present invention.

Figure 4 is a perspective view showing a foldable mobile phone according to the present invention, Figures 5 and 9 is a schematic diagram showing the power transmission connection relationship between the drive motor and the folder according to the present invention.

As shown in the drawing, various buttons and microphones for handset are configured, and a main body 10 having a cylindrical housing 11 formed on one side, a display window and a speaker for displaying various information, and a hinge shaft formed on one side ( 21 shows a foldable cellular phone composed of a folder 20 which is fitted into the housing 11 of the main body 10 and hinged.

The automatic folder safety device of the mobile phone according to the present invention is provided in the rotating part, which is a connection part of the main body 10 and the folder 20, and a switch 30 for automatically opening and closing the folder 20, and this switch. Drive motor 40 is connected to the 30 to generate a driving force, and the driving force of the drive motor 40 as shown in Figure 6 and 10 attached to the hinge shaft 21 of the folder 20 It consists of a drive gear 50, a clutch gear 60 and a hinge gear 70 to selectively transfer.

The switch 30 drives the driving motor 40 by receiving a user's manipulation force. When the user operates the switch 30, the switch 30 outputs a predetermined electric signal to the driving motor 40 connected to the output terminal.

Such, the switch 30 is provided in the form of a conventional push button on one side of the main body 10 in the present invention, it may be provided in various forms depending on the shape of the mobile phone (1) or the position of the user's easy operation force. Could be.

The drive motor 40 is a drive device that generates a predetermined driving force in conjunction with the operating force of the switch 30, is configured inside the main body 10 is operated by receiving a power supply from the battery pack (B).

Since the driving motor 40 is a power source for opening and closing the folder 20, the power supply is cut off when the folder 20 is fully opened or completely closed, and is connected to a timer and a microcomputer so that a driving direction is set. It is preferable to control, and the drive motor 40 may be a normal small motor may be used, but in order to achieve the opening and closing of the folder 20, the hinge shaft 21 must be rotated in the forward or reverse direction to sequentially drive the driving force in both directions. It is preferable to use a motor that can be generated.

The drive gear 50 is a gear that is axially coupled to the output shaft 41 of the drive motor 40 and integrally rotated in the forward or reverse direction, and may achieve one-way power transmission from the drive motor 40 to the folder 20. In the present invention, a worm gear for preventing reversal was used.

The clutch gear 60 is positioned on the circumference of the drive gear 50 to engage with power transmission. In the present invention, the drive gear 50 is a worm gear, so the clutch gear 60 engages with the teeth of the worm gear. Worm wheel was used. The worm wheel is transferred to the hinge gear 70 to be described later by switching the direction of the power output from the drive motor 40.

Here, the drive gear 50 and the clutch gear 60 is not limited to the gear combination as in the present invention as long as it has a structural feature capable of preventing the reversal of the drive motor 40, various types of power transmission element May be used.

The hinge gear 70 is coupled to one end of the hinge shaft 21 of the folder 20 at one end of the hinge gear 70 at a position opposite to the clutch gear 60.

This, the hinge gear 70 is rotated in conjunction with the folder 20 integrally and selectively connected to the clutch gear 60 receives the driving force of the drive motor 40.

Here, the clutch and the hinge gear 70 maintains the connected state so that the folder 20 can receive the driving force output from the driving motor 40 when the folder 20 is automatically opened and closed. When the folder 20 is manually opened and closed, the folder 20 has a structural feature that blocks the rotational force of the folder 20 from being transmitted to the driving motor 40.

That is, the clutch gear 60 has a groove 61 having a predetermined depth and size in a direction facing the hinge gear 70, and a pair of leaf springs having both ends fixed to the groove 61. 62 is installed at a predetermined interval, the hinge gear 70 is a rectangular connecting shaft that is inserted into the groove 61 to one side facing the clutch gear 60, both sides are supported by the leaf spring 62 71 is protruded. Here, the space between the pair of leaf springs 62 has an area proportional to the shortest width of the rectangular connection shaft 71, so that the connection shaft 71 is formed by the rotational force generated from the folder 20 to be described later. The leaf spring 62 is extended.

Therefore, the hinge gear 70 is a state in which the rectangular connecting shaft 71 is supported by the leaf spring 62 of the clutch gear 60, so that the driving force generated from the drive gear 50 is driven by the drive gear 50 and the clutch gear ( 60).

In addition, when the rotational force of the hinge shaft 21 according to the manual opening and closing of the folder 20 acts on the clutch gear 60 through the connecting shaft 71 of the hinge gear 70, the leaf spring 62 elastically The elongated rotation force generated from the folder 20 is blocked from being applied to the driving motor 40, and at the same time, the folder 20 is opened and closed.

Referring to the automatic folder safety device of a mobile phone according to the present invention made as described above are as follows.

When the user operates the switch 30 provided on one side of the main body 10 to automatically open and close the folder 20, the switch 30 applies a predetermined electric signal to the drive motor 40 connected to the output terminal. .

The driving motor 40 receives a power supply from the battery pack B mounted on one side of the main body 10 to generate a driving force in a direction for opening the folder 20 for a predetermined time under the control of a timer and a microcomputer. .

Subsequently, the driving force of the driving motor 40 is transmitted to the clutch gear 60 engaged with the driving gear 50, and the driving force transmitted to the clutch gear 60 is as shown in FIG. 7. It is transmitted to the connecting shaft 71 of the hinge gear 70 supported by the pair of leaf springs 62.

Therefore, since the hinge gear 70 is coupled to the hinge shaft 21 of the folder 20, the folder 20 is rotated by the driving force of the driving motor 40 to be opened.

Then, when the switch 30 is re-operated to automatically close the folder 20, the driving motor 40 generates a reverse driving force for a predetermined time, and the driving force of the driving motor 40 is the above-described folder 20. ) Proceed in the same order as the power transfer process when is opened.

However, the rotational direction of the drive gear 50, the clutch gear 60 and the hinge gear 70 is reversed, the power transmission is made.

Therefore, the hinge gear 70 which receives the reverse driving force of the driving motor 40 rotates integrally with the hinge shaft 21 so that the folder 20 is closed.

Then, when the user rotates the folder 20 in the forward or reverse direction to manually open and close the folder 20, the hinge shaft 21 rotates in the forward or reverse direction in conjunction with the rotation of the folder 20. , The hinge gear 70 coupled to the hinge shaft 21 also rotates integrally.

At this time, the clutch gear 60 supporting the connecting shaft 71 of the hinge gear 70 is engaged with the drive gear 50 which prevents reversal, thereby preventing the reversal and making a fixed state. As shown, the rectangular connecting shaft 71 forcibly extends the leaf spring 62 to the outside and rotates.

Here, when the folder 20 is completely opened or closed, the connecting shaft 71 rotates about 180 ° to have the same position as the initial state, so that the extended leaf spring 62 is restored by the elastic force and the connecting shaft Both ends of 71 are elastically supported.

Therefore, the rotational force generated from the folder 20 by the user's operating force as described above is extinguished as the leaf spring 62 of the clutch gear 60 supporting the connecting shaft 71 of the hinge gear 70 is extinguished. 20 is to be opened and closed manually.

The automatic folder safety device of the mobile phone according to the present invention configured and acted as described above is operated when the external force acts on the folder while the folder is automatically opened and closed by the user's switch operation. It prevents overload and damage to the device.

Therefore, the present invention can open and close the folder as well as automatic and manual to increase the convenience of use, as well as to increase the degree of freedom of design according to the trend of light weight and miniaturization of the mobile phone with a relatively simple component configuration. There is an advantage.

In addition, although the present invention described above has been described as a folding type mobile phone by way of example, the present invention is not necessarily limited to a folding type mobile phone, and a mobile communication device having a cover (flip) which is hinged to be rotatable in a main body. And various types of portable electronic products.

Claims (3)

In a clamshell mobile phone in which a hinge shaft of a folder is inserted into a cylindrical housing of a main body, and a folder is folded and unfolded from the main body. A switch configured at one side of the main body and outputting a predetermined electric signal by a user's operation force; A driving motor installed at a predetermined position inside the main body and selectively connected to an output end of the switch to generate a forward or reverse driving force; A drive gear coupled to the output shaft of the drive motor to prevent reversal; A clutch gear having a predetermined size groove in which a pair of leaf springs are fixed at a predetermined interval on one side of the folder which is engaged with the drive gear to receive power transmission and is opposed to one end of the hinge shaft of the folder; And a hinge gear coupled to the hinge shaft end portion opposite to the clutch gear and having a rectangular connecting shaft inserted into the groove to support both sides thereof with a leaf spring. The method of claim 1, The driving motor is an automatic folder safety device of a mobile phone, characterized in that the driving direction and driving time according to the opening and closing of the folder is controlled by a timer and a microcomputer. The method of claim 1, The drive gear is a worm gear that prevents the reversal of the drive motor, the power transmission gear is an automatic folder safety device of a mobile phone, characterized in that the worm wheel is positioned on the circumference of the worm gear to switch the power transmission direction.