KR100721259B1 - Hinge type cover opening and closing device for cell phone - Google Patents

Abstract

The outer cylinder made of a cylindrical shape and one end portion are rotatably assembled in the inside of the outer cylinder so that the opening and closing operation of the cover is performed smoothly and naturally, and the lifespan caused by the impact on the mobile communication terminal during sudden rotation or sudden stop can be prevented. The fixed cam member is installed, the movable cam member is installed to be movable in the longitudinal direction inside the outer cylinder and the assembling hole is formed through the central portion, and the fixed cam member and the mobile cam member are always installed inside the outer cylinder. An elastic member that exerts a force to contact each other, a rotating shaft coupled to the outer cylinder and the fixed cam member in a rotatable state and rotatably coupled to the assembly hole of the mobile cam member, and installed at one end of the rotating shaft Hinge type for mobile communication terminal comprising a damping device for weakening the rotational force of the rotating shaft It provides more opening and closing device.

Mobile Phone, PDA Phone, Cover, Opening, Hinge, Rotation, Cam, Elastic, Attenuation, Resistance

Description

Hinge Type Cover Opening and Closing Device for Cell Phone}

1 is an exploded perspective view of an installation state showing an embodiment of a hinged cover opening and closing device for a conventional mobile communication terminal.

Figure 2 is an exploded perspective view showing an embodiment of a hinged cover opening and closing device for a conventional mobile communication terminal.

Figure 3 is an assembly view showing an embodiment of a hinged cover opening and closing device for a conventional mobile communication terminal.

Figure 4 is a cam diagram of a fixed cam member and a mobile cam member showing an embodiment of a hinged cover opening and closing device for a conventional mobile communication terminal.

Figure 5 is an exploded perspective view of the installation state showing an embodiment of the hinged cover opening and closing device for a mobile communication terminal according to the present invention.

6 is an exploded perspective view showing an embodiment of a hinged cover opening and closing device for a mobile communication terminal according to the present invention.

7 is an assembled cross-sectional view showing an embodiment of a hinged cover opening and closing device for a mobile communication terminal according to the present invention.

8 is an exploded perspective view showing a rotating shaft and a rotating body in one embodiment of a hinged cover opening and closing device for a mobile communication terminal according to the present invention.

9 is a cross-sectional view taken along the line A-A of FIG.

10 is a cross-sectional view taken along the line B-B in FIG.

11 is a perspective view showing a state in which a groove is formed in a rotary wing in one embodiment of a hinged cover opening and closing device for a mobile communication terminal according to the present invention.

12 is a cross-sectional view showing a state in which a groove is formed in a rotary wing in one embodiment of a hinged cover opening and closing device for a mobile communication terminal according to the present invention.

Figure 13 is a perspective view showing a "+" shaped rotary wing in one embodiment of the hinged cover opening and closing device for a mobile communication terminal according to the present invention.

14 is another perspective view of the rotating shaft and the rotating body in one embodiment of the hinged cover opening and closing device for a mobile communication terminal according to the present invention.

15 is an exploded perspective view showing a state in which a fastening shaft is formed on a rotating body in one embodiment of a hinged cover opening and closing device for a mobile communication terminal according to the present invention.

16 is an assembled cross-sectional view showing a state in which a fastening shaft is formed on a rotating body in one embodiment of a hinged cover opening and closing device for a mobile communication terminal according to the present invention.

17 is a perspective view illustrating a state in which a rotating shaft and a rotating body are integrally formed in one embodiment of a hinged cover opening and closing device for a mobile communication terminal according to the present invention.

18 is an exploded perspective view of the damping device showing another embodiment of the hinged cover opening and closing device for a mobile communication terminal according to the present invention.

19 is an assembled cross-sectional view of a damping device showing another embodiment of the hinged cover opening and closing device for a mobile communication terminal according to the present invention.

20 is a perspective view showing a fastening shaft formed on a rotating body in another embodiment of a hinged cover opening and closing device for a mobile communication terminal according to the present invention.

21 is a cross-sectional view of a fastening shaft is formed on the rotating body in another embodiment of the hinged cover opening and closing device for a mobile communication terminal according to the present invention.

The present invention relates to a hinged cover opening and closing device for a mobile communication terminal, and more particularly, for a mobile communication terminal configured to minimize the impact generated upon completion of the opening and closing operation by weakening the rotational force generated when opening and closing the cover. It relates to a hinged cover opening and closing device.

In general, a mobile communication terminal such as a mobile phone and a PDA phone is widely used to communicate wirelessly while moving in a place other than a fixed location.

In particular, in the case of the mobile phone is one of the essential necessities indispensable to life, the situation is gradually expanded to the elementary, middle and high school students and the elderly in the distribution target.

Meanwhile, in the mobile communication terminal as described above, various types of cover opening and closing devices are applied, which can be divided into hinge type, sliding type, and swing type.

In particular, the hinged cover opening and closing device is one of the most applied to the mobile communication terminal because it is easy to manufacture, less trouble, and easy to use.

 1 illustrates an example of a mobile communication terminal to which a conventional hinged cover opening and closing device is applied, and the mobile communication terminal 2 is divided into a main body 3 and a cover 6, and the main body 3 has a key input unit ( 4) and a talker 5 and the like, and the cover 6 is provided with a display 7 and a talker 8.

In the above, the main body 3 and the cover 6 are connected via a hinged cover opening and closing device 10 to open and close.

As shown in FIGS. 2 and 3, the hinged cover opening and closing device 10 includes a tubular outer cylinder 11 and a fixed cam member rotatably assembled at one end inside the outer cylinder 11. (12), the mobile cam member 14 is assembled and installed to be movable in the longitudinal direction inside the outer cylinder 11, and the fixed cam member 12 is installed inside the outer cylinder (11) The movable cam member 14 is composed of an elastic member 16 for applying a force to always be in contact with each other, and a hinge shaft 18 for supporting the outer cylinder 11 and the fixed cam member 12 in a rotatable state. .

In the hinged cover opening and closing device 10 as described above, the outer cylinder 11 is mainly fixed to the cover 6 of the mobile communication terminal 2, and the fixed cam member 12 is the main body 3 of the mobile communication terminal. Is fixed to.

On the surfaces of the fixed cam member 12 and the movable cam member 14 facing each other, as shown in Figure 4, the cam portion 13, 15 having one or more cam diagram consisting of an uphill section and a downhill section Each is formed.

The hinged cover opening and closing device of the conventional mobile communication terminal configured as described above has various problems such as adversely affecting the life or function of the mobile communication terminal due to an impact when the cover is closed or opened.

The present invention has been made in view of the above-mentioned point, and by reducing the rotational speed of the rotary shaft by applying a resistance through the resistor to the rotary shaft for the rotary motion when opening and closing the cover of the mobile communication terminal, the cover and body of the mobile communication terminal To provide a hinged cover opening and closing device for a mobile communication terminal to alleviate the impact of the collision and the natural opening and closing operation, the object is.

The hinged cover opening and closing device for a mobile communication terminal proposed by the present invention includes a tubular outer cylinder, a fixed cam member to which one end is rotatably assembled inside the outer cylinder, and a longitudinal direction inside the outer cylinder. A movable cam member installed to be movably assembled and having an assembly hole penetrating through a central portion thereof, an elastic member installed inside the outer cylinder and exerting a force such that the fixed cam member and the mobile cam member are in contact with each other; And a rotating shaft coupled to and supported by the fixed cam member in a rotatable state and rotatably coupled to the assembly hole of the movable cam member, and a damping device installed at one end of the rotating shaft to weaken the rotational force of the rotating shaft. It is made, including.

One end surface of the rotating shaft is formed with a connecting projection for connecting with the damping device.

In the attenuating device is a rotating body connected to one end of the rotating shaft is installed, a cylindrical fixed body in which the rotating body is rotatably inserted therein, installed between the inner surface of the fixed body and the rotating body It is made to include a resistor for reducing the rotational speed of the rotating body.

The rotating body is composed of a blade located inside the fixture and formed in a plate shape, and a flange portion integrally formed on one end surface of the blade and sealing the opening surface of the fixture.

 A connection groove in which the connecting protrusion of the rotating shaft is assembled therein is formed on a surface facing the connecting protrusion of the rotating body.

The resistor is made of a liquid or gel material having a high viscosity such as grease.

In the above, the rotating body is located in the interior of the fixed body and a cylindrical friction axis formed in a shape corresponding to the inner surface of the fixed body, and integrally formed on one end surface of the friction shaft and plan to seal the opening surface of the fixed body It is also possible to have a branch.

At least one circumferential groove is formed on the outer surface of the friction shaft at predetermined intervals.

Next, a preferred embodiment of a hinged cover opening and closing device for a mobile communication terminal according to the present invention will be described in detail with reference to the drawings.

First, an embodiment of the hinged cover opening and closing device for a mobile communication terminal according to the present invention, as shown in Figs. 5 to 7, the outer cylinder 20, the fixed cam member 30 is assembled to the outer cylinder 20 and The mobile cam member 40 and the fixed cam member 30 and the mobile cam member 40 which are assembled and installed inside the outer cylinder 20 and having an assembly hole 48 formed through the center portion are always mutually supported. Weakening the rotational force of the elastic member 60 and the rotating shaft 80 is installed rotatably coupled to the assembly hole 48 of the movable cam member 40, and the rotating shaft 80 to apply a force to the contact It comprises a damping device 100 to make.

The outer cylinder 20 is fixed to the cover 6 of the mobile communication terminal 2 (for example, a mobile phone).

The outer cylinder 20 has a tubular shape in which one side is opened and a through hole 22 is formed in the other side.

The fixed cam member 30 is fixed to the main body 3 of the communication terminal (2).

The fixed cam member 30 is rotatably assembled inside the opening end of the outer cylinder 20.

The movable cam member 40 is installed and assembled to be movable along the longitudinal direction inside the outer cylinder 20.

In the moving cam member 40, a longitudinal intermediate portion of the rotary shaft 80 is assembled in the assembly hole 48.

On the surfaces of the fixed cam member 30 and the movable cam member 40 facing each other, cam portions 32 and 42 each having one or more cam diagrams consisting of an uphill section and a downhill section are formed.

As the cam portion 32, 42 is formed as described above, if the cover 6 is rotated for a certain period in the mobile communication terminal 2, the remaining sections are automatically rotated.

The cam portions 32 and 42 of the fixed cam member 30 and the mobile cam member 40 are generally operated in a hinged opening and closing device of a telecommunication communication terminal. It is possible to configure and implement to operate in the same way.

The elastic member 60 is made using a compression coil spring or the like and is installed in the outer cylinder 20.

The elastic member 60 is installed between the other end surface of the outer cylinder 20 and the movable cam member 40.

The outer cylinder 20 and the fixed cam member 30, the configuration of the mobile cam member 40 is a configuration of the outer cylinder and the fixed cam member, the mobile cam member in the hinged switchgear of the widely used communication terminal. It is also possible to implement in the same structure.

The rotating shaft 80 supports the outer cylinder 20 and the fixed cam member 30 in a rotatable state.

The rotating shaft 80 is installed so that one end is exposed to the outside through the fixed cam member 30 and the other end is passed through the through hole 22 of the outer cylinder 20. .

The other end of the rotating shaft 80 is coupled to the fastening member 90, such as an E-ring or a C-ring.

One end surface of the rotary shaft 80 is formed with a connecting projection 81 for connecting with the damping device 100.

The damping device 100 is installed at one end of the rotating shaft 80.

5 to 7, the damping device 100 is connected to one end of the rotating shaft 80 and installed, and the rotatable body 120 is rotatable therein. It includes a cylindrical fixed body 140 is inserted between the inner surface of the fixed body 140 and the rotating body 120, the resistor 160 for reducing the rotational speed of the rotating body 120 .

As shown in FIG. 8, a connection groove 121 in which the connection protrusion 81 is assembled is formed at a surface of the rotary body 120 that faces the connection protrusion 90 of the rotation shaft 80. .

The connection groove 121 is formed in the center of the flange portion 126 in the above.

As shown in FIG. 14, a connection groove 81a is formed at one end surface of the rotation shaft 80 in the above, and the connection groove 81a is formed on a surface facing the connection groove 81a in the rotating body 120. It is also possible to form a connecting protrusion 121a assembled inside.

In the rotation shaft 80 is a longitudinal intermediate portion is assembled to the assembly hole of the mobile cam member 40 is rotated integrally, the rotation of the rotating body 120 is made as the rotating shaft 80 is rotated.

As shown in FIG. 9, the assembling hole 48 of the movable cam member 40 is formed in various shapes such as a quadrangular shape, and a longitudinal middle portion of the rotating shaft 80 corresponds to the assembling hole 48. Is formed.

The rotor 120 is located inside the fixture 140 and is formed in the shape of a plate 122, and integrally formed on one end surface of the blade 122 and the opening surface of the fixture 140 It consists of a flange portion 126 to seal the.

As shown in FIG. 10, the blade 122 is formed of a plate having a substantially "l" shape (straight shape).

One or more through holes 123 may be formed in the wing 122 as described above at a predetermined interval.

As shown in FIGS. 11 and 12, the outer edge of the wing 122 may be formed with one or more grooves 124 at predetermined intervals.

As shown in FIG. 13, the wing 22 may be formed of a plate having a "+" shape (cross shape), and although not shown in the drawing, various shapes such as a "*" shape plate and a "Y" shape plate may be used. It is possible to be formed in a shape.

The fixture 140 has a cylindrical shape in which one side (the opposite side of the rotation shaft 80) is closed.

The fixing body 140 may be closed by closing the one side by installing the cover 150 in a state that one end is opened, one end is closed by blocking the opening by one end is inwardly closed. It is also possible.

The fixed body 140 as described above is fixed to the main body (3) of the communication terminal (2).

The resistor 160 is made of, for example, grease.

In addition to the grease, the resistor 160 may use various liquids or gels having high viscosity.

In this case, the resistor 160 may be filled in the inner space of the fixture 140, may be used to the extent that the inner surface of the fixture 140 is applied, and the internal space of the fixture 140 may be used. It is possible to fill only a part.

The resistor 160 as described above can be selected and used having a suitable viscosity in accordance with the elastic force of the elastic member 60 or the opening and closing speed of the cover 3 in the mobile communication terminal (2).

15 and 16, in the damping device 100 configured as described above, a fastening ring 129 is provided at one end surface of the fixed body 140 at the other end of the rotating body 120. It is also possible that the shaft portion 128 that is coupled through is integrally formed.

The fastening ring 129 is formed using an E-ring or a C-ring.

In the hinged cover opening and closing device for a mobile communication terminal according to one embodiment of the present invention made as described above, as shown in FIG. 17, the rotating shaft 80 and the rotating body 120 may be integrally formed.

And another embodiment of the hinged cover opening and closing device for a mobile communication terminal according to the present invention, as shown in Figure 18 and 19, the rotating body 130 is located inside the fixed body 140 and the fixed body ( A cylindrical friction shaft 142 formed in a shape corresponding to the inner surface of the 140 and a flange portion integrally formed on one end surface of the friction shaft 142 and sealing the opening surface of the fixing body 140 ( 136) is also possible.

At least one circumferential groove 134 is formed on the outer surface of the friction shaft 132 at predetermined intervals.

The circumferential groove 134 is formed in a ring shape or a spiral shape.

The other end of the rotating body 130, as shown in Figure 20 and 21, it is also possible to form a shaft portion 138 is coupled to one end surface of the fixing body 140 through the fastening ring 139. Do.

The fastening ring 139 is made using an E-ring or a C-ring.

Also in the above-described other embodiments, the present invention can be implemented in the same configuration as the above-described embodiment except for the above-described configuration, and thus detailed description thereof will be omitted.

In the above description of the preferred embodiment of the hinged cover opening and closing device for a mobile communication terminal according to the present invention, the present invention is not limited to this, but the claims and the detailed description of the invention, various modifications within the scope of the accompanying drawings. It is possible to carry out by way of example, which also falls within the scope of the present invention.

According to the hinged cover opening and closing device for a mobile communication terminal according to the present invention made as described above, it is possible to prevent the sudden rotation and sudden stop of the cover because the rotational force generated when the cover opening and closing of the mobile communication terminal is gradually weakened through the damping device.

Therefore, the opening and closing operation of the cover is performed smoothly and naturally, and it is possible to prevent a decrease in life due to the impact applied to the mobile communication terminal during sudden turn or sudden stop.

In addition, it becomes possible to compensate for the defects that tend to be vulnerable due to the slimming, miniaturization, and lightening of the mobile communication terminal.

In addition, since the cover and the main body does not hit hard, it is possible to prevent the damage caused by the noise generated when the conventional cover and the main body hit.

According to the hinged cover opening and closing device for a mobile communication terminal according to the present invention, as the cover rotates, a natural force is generated on the rotating shaft, and then attenuation by the attenuation device is performed, thereby reducing the parts and making the structure very simple.

Furthermore, since a resistor having a relatively high viscosity such as grease is provided between the rotating body rotating together with the rotating shaft and the fixed body fixed to the main body, it is possible to effectively weaken the sudden rotation of the cover effectively.

In particular, since the damping performance can be easily adjusted according to the viscosity of the resistor, the shape of the rotating body, etc., it can be usefully used regardless of the magnitude of the rotational force when the lid is opened and closed.

Claims (14)

External cylinder made of tubular shape, A fixed cam member rotatably assembled at one end inside the outer cylinder; A mobile cam member installed and assembled to be movable along the longitudinal direction in the outer cylinder and having an assembly hole formed through the central portion thereof; An elastic member installed inside the outer cylinder and exerting a force such that the fixed cam member and the mobile cam member are in contact with each other; A rotating shaft coupled to and supported by the outer cylinder and the fixed cam member in a rotatable state and rotatably coupled to the assembly hole of the mobile cam member; A hinged cover opening and closing device for a mobile communication terminal, which is installed at one end of the rotating shaft and includes a damping device for weakening the rotating force of the rotating shaft. The method according to claim 1, The damping device is a rotating body connected to one end of the rotating shaft and installed; A cylindrical fixing body in which the rotating body is rotatably inserted therein; Hinged cover opening and closing device for a mobile communication terminal comprising a resistor provided between the inner surface of the fixed body and the rotating body to reduce the rotational speed of the rotating body. The method according to claim 2, The resistor is a hinged cover opening and closing device for a mobile communication terminal made of a liquid or gel material having a high viscosity. The method according to claim 2, One end of the rotary shaft is formed with a connecting projection, The hinged cover opening and closing device for a mobile communication terminal is formed on the surface facing the connecting projection in the rotating body is formed with a connecting groove in which the connecting projection is assembled. The method according to claim 2, One end surface of the rotating shaft is formed with a connection groove, The hinged cover opening and closing device for a mobile communication terminal is formed on the surface facing the connection groove in the rotating body is formed with a connection projection assembled in the connection groove.  The method according to claim 2, The hinge shaft opening and closing device for a mobile communication terminal is formed integrally with the rotating shaft. The method according to claim 2, The fixture is made of a cylindrical shape that one side is closed, The rotating body is hinged cover opening and closing of the mobile communication terminal consisting of a wing which is located inside the fixed body and formed in a plate shape, integrally formed on one end surface of the wing and sealing the opening surface of the fixed body. Device. The method according to claim 7, A hinged cover opening and closing device for a mobile communication terminal, wherein at least one through hole is formed in the wing at a predetermined interval in the rotor. The method according to claim 7, The hinged cover opening and closing device for a mobile communication terminal is formed in the outer edge of the rotor at one or more grooves are formed at a predetermined interval. The method according to any one of claims 7 to 9, The other end of the rotating body hinged cover opening and closing device for a mobile communication terminal is formed integrally with the shaft portion coupled via a fastening ring to one end surface of the fixed body. The method according to claim 2, The fixture is made of a cylindrical shape that one side is closed, The rotating body is a cylindrical friction axis located in the interior of the fixture and formed in a shape corresponding to the inner surface of the fixture, and a flange portion integrally formed on one end surface of the friction shaft and sealing the opening surface of the fixture. Hinge type opening and closing device for a mobile communication terminal. The method according to claim 11, At least one circumferential groove is formed on the outer surface of the friction shaft at predetermined intervals, The circumferential groove is a hinged cover opening and closing device for a mobile communication terminal is formed in a ring shape or a spiral shape. The method according to claim 11 or 12, The other end of the rotating body hinged cover opening and closing device for the mobile communication terminal is formed with a shaft coupled to the one end surface of the fixed body via a fastening ring. The method according to claim 2, The outer cylinder is fixed to the cover of the mobile terminal, The fixed cam member and the fixed body is fixed to the body of the mobile communication terminal, A hinged cover opening and closing device for a mobile communication terminal, wherein cam portions each having at least one cam diagram comprising an uphill section and a downhill section are formed on surfaces of the fixed cam member and the mobile cam member facing each other.

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