KR20060032620A - Rotary hinge of cellular phone - Google Patents

Abstract

The present invention discloses a rotary hinge for a mobile phone.

The rotary hinge for a mobile phone according to the present invention interconnects a main body provided with a folder and a keypad provided with a screen display window, and the rotary hinge supports the main body at both ends in an axially rotatable state while the folder is opened. A casing in which a main body connecting hinge groove is formed and a pivot shaft protrudes in a vertical direction above the middle portion, a housing provided in a cylindrical shape with an upper surface open by being fitted to the pivot shaft, and provided in the housing in a vertical direction. An elastic body exerting an elastic force, and a ring-shaped positioning plate provided at an upper side of the elastic body and inserted into the pivot shaft and selectively having elastic displacement along the pivot shaft, wherein protrusions are formed at equal intervals on the upper surface, and the pivot shaft If it is inserted into the shaft and rotates, the projection of the positioning plate The groove is formed with a warp groove to create a sense of theft during the axial rotation of the folder, the upper surface is formed with a rotation restriction restraint groove having a locking jaw and both ends are provided with a rotator having a folder fixing arm extending in the horizontal direction, It is configured to include a rotary cam to limit the rotation angle of the rotator by being selectively fixed to the locking jaw of the restraint groove to be fixed to the upper end of the pivot shaft protruding onto the restraint groove.

The rotary hinge for a mobile phone according to the present invention configured as described above has good assembly performance as the number of components is reduced compared to the past, and can reduce the size of the parts, resulting in a design and design for slimming a mobile phone. This provides a useful effect to increase the degree of freedom of the.

Phone, folder, rotary, hinge, pivot

Description

Rotary Hinge for Cellular Phones {Rotary Hinge of Cellular Phone}

1 is an exploded perspective view for explaining the configuration of a rotary hinge for a mobile phone according to the present invention;

2 is an assembly cross-sectional view showing a rotary hinge for a mobile phone according to the present invention;

3 is a perspective view showing an open state of a folder in a rotary hinge for a mobile phone according to the present invention;

Figure 4 is a perspective view showing a rotary operation of the folder opened in the rotary hinge for a mobile phone according to the present invention.

<Description of Symbols for Main Parts of Drawings>

1: body 2: folder

10: casing 11: body connection hinge groove

15: Pivot Shaft 20: Housing

30: elastic body 40: positioning plate

41: protrusion 50: rotator

51: groove 52,53: folder fixed arm

55: rotation restriction restraint groove 60: rotation cam

61: coupling hole 62: stopper

The present invention relates to a rotary hinge module that rotates a folder opened and closed from the main body at an angle in an open state in an open state, and more particularly, can improve design and design freedom for slimming while improving assembling. To a rotary hinge for a mobile phone.

In general, a mobile phone (mobile phone or cellular phone) is a terminal that receives a mobile communication service that allows a user to use a certain radius of a locally fixed subscriber line so that it can be used within a certain radius within a service area. While communication is used in a fixed place by line number, a mobile phone can make a call without restriction in place by a logical personal number regardless of line.

Such a mobile phone is explosive in demand due to its ease of portability and convenience in use, and is becoming a miniaturized and multifunctional device in order to meet various needs of consumers.

In general, a mobile phone has a 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 number (function) button with a cover, and a main body. It is classified into a folder type that is folded in half, and a slide type in which a part of the main body protrudes in the vertical direction. Recently, as a broadcast and a game are started to be incorporated into a mobile phone, a liquid crystal screen showing various information is displayed. A clamshell phone with a rotary hinge that can be rotated is being developed and released.

In other words, a folder-type mobile phone uses a phone or various additional functions by opening a folder. Recently, as a mobile phone equipped with a camera is popularized, there is a disadvantage that a user cannot see a screen display when taking a picture. In order to remedy this disadvantage, a product equipped with a rotary hinge has been developed to rotate a certain angle in the left and right directions with the folder open.

Rotary hinge according to the prior art as shown in the Republic of Korea Utility Model Registration Application No. 20-2004-0036841, the horizontal hinge module to be rotated for opening and closing the folder and the body back and forth, and the open folder in the left and right directions It consists of a vertical hinge module to be rotated.

Here, looking at the configuration of the vertical hinge module which is a main technical feature for rotating the folder in the left and right directions, one side is largely fastened to the folder fixing arm to which the mobile phone folder is fixed and the other side is inserted into the main housing and guide the cam therein A pivot shaft having a ball formed therein, one end of which is fastened to the folder fixing arm, a pivot shaft inserted into the vertical housing and its cam guide hole, and the other end of which is fixed to the main housing, and the cam guide of the vertical housing; A spring inserted into the ball and exerting elastic force in the longitudinal direction, a rotary sliding cam inserted into the cam guide hole of the vertical housing so as to be movable, and having one end supported by the spring to give elastic force; Is disposed and fixed in the through hole of the folder fixing arm to face the rotary sliding cam It consists of a rotary rotary cam.

The rotary hinge for a mobile phone according to the prior art, which is configured as described above, has a number of components, which causes problems in productivity and assembly failure rate due to poor workability during assembly work. Particularly, in order to slim down a mobile phone, the size of a component must be reduced. However, in consideration of the assembly work, there is a limit in the thinning of the size, and as a result, there is a problem that greatly impairs the freedom of design and design for miniaturization and slimming of the mobile phone.

The present invention was created in order to solve the problems of the prior art as described above, the object of the present invention is to reduce the number of parts to enable a stable rotation operation of the folder while improving the assembly workability and mass production, design according to slim And to provide a rotary hinge for a mobile phone that can increase the degree of freedom of design.

In order to achieve the above object, a rotary hinge for a mobile phone according to the present invention is a rotary hinge supporting an axially rotatable state in an open state of a folder by interconnecting a main body provided with a folder and a keypad provided with a screen display window. To

A casing in which a main body connecting hinge groove for body connection is formed at both ends and the pivot shaft protrudes in a vertical direction above the middle portion; A housing provided in a cylindrical shape having an upper surface open by being fitted to the pivot shaft, and an elastic body provided in the housing to exert an elastic force in a vertical direction; A ring-shaped positioning plate provided at an upper side of the elastic body and inserted into the pivot shaft to selectively elastically move along the pivot shaft, and having protrusions formed at equal intervals on the upper surface thereof; The groove is inserted into the pivot shaft to be rotated axially to form a groove to generate a sense of theft during the axial rotation of the folder by selective fitting with the protrusion of the positioning plate, and a rotational restriction restraint groove having a locking jaw is formed on the upper surface. Both ends are rotator provided with a folder fixing arm extending in the horizontal direction; It is characterized in that it comprises a rotary cam for limiting the rotation angle of the rotator by being selectively fixed to the locking jaw of the restraint groove to be fixed to the upper end of the pivot shaft protruding onto the restraint groove of the rotator.

As a preferable feature of the present invention, the protrusions of the positioning plate and the grooves of the rotator are formed at intervals of 180 degrees.

In another preferred aspect of the present invention, the housing, the positioning cam, and the rotator are provided with a through hole through which the pivot shaft is inserted.

As another preferable feature of the present invention, the casing is to be molded by injection.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, the terms or words used in the present specification and claims are consistent with the technical spirit of the present invention based on the principle that the inventor can appropriately define the concept of the term in order to explain the invention in the best way. It must be interpreted as meaning and concept.

Hereinafter, a preferred embodiment of a rotary hinge for a mobile phone according to the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view for explaining the configuration of a rotary hinge for a mobile phone according to the present invention, Figure 2 is an assembly cross-sectional view showing a rotary hinge for a mobile phone according to the present invention. 3 is a perspective view showing an open state of a folder in a rotary hinge for a mobile phone according to the present invention, and FIG. 4 is a perspective view showing a rotary operation of a folder opened in a rotary hinge for a mobile phone according to the present invention.

First, the rotary hinge of the mobile phone of the present invention preferably has a main body 1 having a keypad for inputting various information, a microphone, various other input / output terminals, and a battery pack for power supply, and It is connected to one side is provided with a screen display window for displaying a variety of information is to be applied to a clamshell mobile phone consisting of a folder (2) which is rotated in a folded or unfolded form with the main body (1) In addition, the present invention may be applied to various mobile communication terminals and mobile terminals of a folder type.

That is, the present invention is characterized by the technical configuration of the rotary hinge (3) which allows the user to rotate the folder in the open state in the folding mobile phone by a predetermined angle in the left and right directions, wherein the rotary hinge ( 3) the housing 20 inserted into the casing 10 largely provided on the main body 1 side, the pivot shaft 15 provided perpendicular to the casing 10, and housed in the housing 20. The rotator 50 and the rotator 50 which rotate around the pivot axis 15 by being provided in the elastic body 30, the positioning plate 40 provided in the upper side of this elastic body 30, and the folder 2 side. Consists of a rotary cam 60 to limit the rotation angle of the).

The casing 10 is a member having a tubular shape formed with a main body connecting hinge groove 11 in which both ends are recessed inward, and the main body connecting hinge groove 11 at this time is assembled with a hinge shaft provided at one side of the main body 1. It serves as a horizontal hinge axis for opening and closing the folder from the main body, and this function is similar to the configuration of the conventional rotary hinge (3), so the detailed description thereof will be omitted.

On the other hand, the casing 10 is provided with a form in which the upper surface is open as shown in the figure, the middle portion is a structure in which the pivot axis 15 protrudes in a vertical direction.

The casing 10 configured as described above is preferably processed integrally including the pivot shaft by injection of a synthetic resin or metal material.

The housing 20 is a member having a hollow cylindrical shape that is inserted into the pivot shaft 15 of the casing 10 described above. The lower surface of the housing 20 has a through hole h of a corresponding size so that the pivot shaft 15 can pass therethrough. ) Is formed, and the upper surface is provided in an open form. An elastic body 30 having a coil shape is accommodated in the housing 20, and the elastic body 30 at this time elastically supports the positioning plate 40 to be described later by applying an elastic force in a vertical direction. .

The positioning plate 40 is a member having a disc shape in which a through hole h through which the pivot shaft 15 is inserted is formed at the center thereof, and is positioned above the elastic body 30 to be elastic in a vertical direction. Will have a displacement. The positioning plate 40 has a structure in which the protrusions 41 are formed at equal intervals on the upper surface, and the protrusions 41 at this time are selectively fitted together with the grooves 51 of the rotator 50 to be described later. By doing so, the folder 2 plays a role in generating a sense of theft at a certain angle during the rotation operation.

Meanwhile, as shown in the drawing, the positioning plate 40 is vertical while being constrained in the direction of rotation by the through hole h also being formed in a rectangular structure corresponding to the pivot axis 15 having a square structure in cross section. It has an elastic displacement in the direction.

The rotator 50 is a rotating member which is axially rotated about the pivot shaft 15 by inserting the above-described pivot shaft 15 into the through hole h formed in the center portion, and on the lower surface of the positioning plate 40. Grooves 51 are selectively formed with protrusions 41 formed on the upper surface of the grooves 41. At this time, the groove 51 and the protrusion 41 is preferably provided with two or more at equal intervals, respectively, the present invention proposes to be provided in pairs at intervals of 180 degrees.

In addition, the upper surface of the rotator 50 is a structure that is formed so that the rotation restriction restraint groove 55 having a locking jaw (unsigned) on one side, the rotation restriction restraint groove 55 at this time is a rotation to be described later Assembly of the cam 60 limits the rotation angle of the rotator 50.

On the other hand, the rotator 50 is a structure in which both ends of the folder fixing arms (52, 53) extending in the horizontal direction are formed integrally, the folder fixing arms (52, 53) at this time is known by conventional techniques Since it may be implemented, detailed description thereof will be omitted.

The rotator 50 configured as described above is rotated by a predetermined angle in the left and right directions about the pivot axis 15 together with the folder 2 receiving the user's manipulation force.

The rotary cam 60 is a member fixedly coupled to the upper end of the pivot shaft 15 protruding onto the above-described rotation restriction restraint groove 55 of the rotator 50. By selectively engaging the rotation angle of the rotator 50 is limited.

The rotary cam 60 is provided in a substantially disk shape and a coupling hole 61 is formed at the center to be coupled to the pivot shaft 15 by interference fit, and the rotational limitation of the rotator 50 is described as the main surface. The stopper 62 is formed to protrude from the locking step formed in the groove 55.

Rotating cam 60 is configured to be integrally coupled to the above-described pivot axis 15, the stopper 62 is protrudingly formed on the main surface of the rotary cam 60 when the stopper (50) during rotation of the rotator (50) The contact angle of the rotator 50 is constrained as a result of the contact with 62 on the locking jaw on the rotation limiting recess 55.

Looking at the operation of the rotary hinge for a mobile phone of the present invention configured as described above are as follows.

First, when a user applies an operating force to the folder 2 while rotating the folder 2 from the main body 1 having various keypads, input / output ports, battery packs, and the like, and rotates in one direction, the folder 2 includes a rotator ( Since the folder fixing arms 52 and 53 of 50 are configured to be coupled, the rotator 50 is also rotated in one direction about the pivot axis 15.

At this time, the rotator 50 is coupled in a form in which the groove 51 formed in the bottom surface is fitted with the protrusion 41 of the positioning plate 40 which receives the elastic support force of the elastic body 30 before the rotation operation starts. Since the operation force of the user transmitted to the rotator 50 is greater than the support force of the elastic body 30 when the rotation operation is started, consequently, the groove 51 part rotates the protrusion 41 downward while the rotator 50 rotates. It is released under pressure. Subsequently, when the rotator 50 is rotated to some extent, the groove 51 formed at the next position in the rotational direction is elastically fitted with the protrusion 41 of the positioning plate 40. You can feel theft.

On the other hand, when the rotator 50 is rotated to some extent, the rotation is limited by the assembly structure with the rotary cam 60. The locking jaw is protruded on one side of the rotation restriction restraint groove 55, and the rotation cam 60 has a structure in which a stopper 62 selectively protrudes from the locking jaw, so that the rotator 50 is formed. Its rotation is limited in one direction or reverse rotation.

The rotary hinge for the mobile phone configured as described above is simple in construction, thereby enabling productivity improvement and miniaturization of parts through improved assembly workability.

The above-described embodiments are merely illustrative of preferred embodiments of the present invention, and the scope of application of the present invention is not limited to the above, and may be appropriately changed within the scope of the same idea. For example, the shape and structure of each component shown in the embodiment of the present invention can be modified.

The rotary hinge for a mobile phone according to the present invention constructed and acted as described above has good assembly performance as the number of components is reduced compared to the past, and can reduce the size of the parts, resulting in a design for slimming a mobile phone. And it provides a useful effect to increase the degree of freedom of design.

Claims (4)

In the rotary hinge supporting the axially rotatable in the open state of the folder by connecting the folder provided with the screen display and the main body provided with the keypad, A casing in which a main body connecting hinge groove for body connection is formed at both ends and the pivot shaft protrudes in a vertical direction above the middle portion; A housing provided in a cylindrical shape having an upper surface open by being fitted to the pivot shaft, and an elastic body provided in the housing to exert an elastic force in a vertical direction; A ring-shaped positioning plate provided at an upper side of the elastic body and inserted into the pivot shaft and selectively having elastic displacement along the pivot shaft, the upper surface having protrusions formed at equal intervals; The groove is inserted into the pivot shaft to be rotated axially to form a groove to generate a sense of theft during the axial rotation of the folder by selective fitting with the protrusion of the positioning plate. A rotator formed at both ends thereof and having a folder fixing arm extending in a horizontal direction; A rotary cam that is fixedly coupled to an upper end of the pivot shaft protruding onto the rotation limiting recess of the rotator to selectively lock the rotation angle of the rotator by being selectively locked to the locking jaw of the rotation limiting recess; Rotary hinge for a mobile phone, characterized in that comprises a. The rotary hinge of claim 1, wherein the protrusion of the positioning plate and the groove of the rotator are formed at 180 degree intervals. 3. The rotary hinge of claim 1 or 2, wherein the housing, the positioning cam, and the rotator have a through hole through which a pivot shaft is inserted. 2. The rotary hinge of claim 1, wherein the casing is molded by injection.

Images