KR200346616Y1 - Hinge - Google Patents

Abstract

A hinge is provided that is mounted between the joints of the two parts. The hinge is secured to the first component and has a sleeve with an inner slot, the cam follower being redirected, thereby moving the floor downward along the slot to the fixed position or upwards to the non-fixed position. A cam follower having a ridge on the face, a cam that engages the cam follower such that the cam is rotated to a first or second position relative to the sleeve, a spring in the sleeve to hold the cam and the cam follower in a fixed position, And a shaft having one end fixed to the cam for rotation together. The present invention is particularly applicable to cellular phones.

Description

Hinge {HINGE}

The present invention relates to a hinge, and in particular to a hinge for a cellular phone that reduces rotational wear through the performance of a cam mechanism acting on the cam follower and sleeve of the hinge.

Cellular phones are advantageous because they are compact and portable. In particular, people carry cellular phones in pockets, handbags, briefcases, or elsewhere while they travel. However, inadvertent push of a button on a cellular phone is often caused by a button on the front of the phone body. Some cellular phone manufacturers have developed button lock mechanisms to prevent inadvertent button presses. However, cellular phones with such button locking mechanisms are inconvenient.

The solution to this problem is to incorporate a flap cover that is hinged to the body of the cellular phone. Many different hinges have been developed. For example, US Pat. No. 5,697,124 describes a collapsible electronic product having a hinge housing that includes internal components (eg, hinge shaft, cam follower, hinge arm, coil spring, and hinge cover). Disclosed is a hinge mechanism. A guide slit and a hooking groove formed on the hinge housing cooperate with each other to adjust the rotation angle of the cam follower relative to the hinge shaft to open or close the flip-cover. It is difficult to manufacture guide slits and grooves on the hinge housing. In addition, the hinge housings are relatively large in size and have a thicker surface to maintain structural integrity. Another prior art US Pat. No. 5,724,683 discloses a hinge mechanism for supporting a seat of a toilet seat lid provided with a shaft, hinge pin, cam mechanism, and spring in a cylindrical case. In addition, parts are provided that include a pad, a screw, and an O-ring. The hinge pin has a means for rotating with the shaft. Furthermore, the cam includes a slider mounted on the shaft in the case for rotating with the shaft. Structural complexity is disadvantageous. In addition, such hinge mechanisms are required to be installed in pairs when mounted to a cellular phone. As a result, the reduction in size becomes impossible. Another prior art US Pat. No. 5,937,062 is directed to mounting a flip on a portable telephone set in which a first cam, a second cam, a guide member, an elastic member, and an elastic member are provided to adjust the opening and closing of the flip. A hinge module is disclosed. The reduction of the hinge module is advantageous. In this case, however, there is no housing provided as a protective part. As such, it is difficult to position or assemble. In addition, they are not structurally robust and their service life is short.

Therefore, there is a need to provide a hinge that reduces the number of parts while maintaining structural preservation in order to overcome disadvantages such as insufficient strength and complicated construction of the prior art.

The present invention aims to provide a hinge for a cellular phone which reduces rotational wear and increases operating stability. This object can be achieved through the operation of a cam follower having a sleeve having a plurality of slots and a plurality of interdental ridges engaging the slot.

1 is a perspective view showing an embodiment of a hinge according to the present invention.

Figure 2 is an exploded view showing the present invention.

3A and 3B are cross-sectional views illustrating the opening and closing operations of the hinge, respectively, for description of the first part engaging the hinge that rotates with respect to the mating second part.

FIG. 4 shows an imaginary view of the hinge mounted to the engaging portion of the body cover of the cellular phone and the flap cover.

※ Explanation of symbols about main part of drawing ※

11: sleeve 12: cam follower

13: cam device 14: helical spring

15 shaft 16 washer

111: rectangular flat

112: first opening

113: longitudinal slot

114: second opening

121: longitudinal ridge

122: raised member

123: recess

124: hollow cylindrical protrusion

131: rectangular flat

132: cam member

133: bottom cavity

134: longitudinal cylindrical bore

135: flat top surface

151 circular top member

152 neck

153 main shank

154: cylindrical bottom projection

In order to achieve the above and other objects, the present invention provides a hinge mounted to the body portion of the cellular phone and the engaging portion on the flap cover. The hinge is fixed to the body portion and has a plurality of longitudinal slots on the inner wall; And a cam longitudinal with a plurality of longitudinal ridges on the outer surface corresponding to the slots such that a turning of the cam follower moves the ridge downwardly along the slot to a fixed position or upwards to a non-fixed position. Includes eastern. The cam means secures the flap cover and includes a bottom cavity coupled to the raised member and the groove, respectively, and two cam members on both sides of the cavity for causing the cam to rotate in a first or second position relative to the sleeve; A spring in the sleeve having one end against the bottom of the sleeve and the other end against the cam follower to hold the cam and the cam follower in a fixed position, the spring further moving down to the fixed position relative to the sleeve. A shaft having a cam follower that is to be moved up or to a non-locked position, the shaft having one end fixed to the cam device to rotate from a first position to a second position or from a second position to a first position And a shaft having the other end passing through the cam follower and the spring to control the movement of the eastern part.

The above and other objects, features and advantages of the present invention will be apparent from the following detailed description with reference to the drawings.

1 and 2, a hinge constructed in accordance with the present invention is shown. The hinge comprises a sleeve 11 and a cam follower 12, the sleeve 11 being two on both sides on the circumferential surface fixed to the joining part of the two parts, as described in detail later. A second planar portion 111, a plurality of longitudinal slots 113 on the inner wall, a first opening 112 at one end and a second end having a diameter much smaller than the first opening 112 An opening 114, wherein the cam follower 12 includes a groove 123 at one end, a hollow cylindrical protrusion 124 at the other end, and two raised members on both sides of the groove 123. 122, and a plurality of longitudinal ridges 121 fitted in the slots 113 and on the outer surface of the raised member 122. The turning of the cam follower 12 moves the floor 121 downward (as indicated by the broken line in FIG. 3A) or down to the steady position along the slot 113 or non-fixed. Move up to the non-steady position. In other words, the cam follower 12 has a fixed position and a non-fixed position with respect to the sleeve 11, as will be described in detail later.

In addition, the hinge further comprises a cam device 13, and as will be described in detail later, the cam device 13 has two rectangular planar portions 131 facing each other on an outer surface fixed to the connection of the two parts. , A planar top surface 135, a longitudinal cylindrical hole 134 with both ends open, a bottom cavity 133, and two cam members 132 on both sides of the bottom cavity 133. . The lower cavity 133 and the cam member 132 are configured to be coupled to the raised member 122 and the groove 123, respectively. The cam device 13 has a diameter slightly smaller than the first opening 112 to fit the sleeve 11. As indicated by the broken line, the cam device 13 is configured to be disposed in a first position or a second position with respect to the sleeve 11 via rotation. In addition, the rotational force of the cam device 13 will be uniformly applied on the ridge 121 and the corresponding slot 113. As a result, the cam device 13 does not involve excessive wear or deformation.

Furthermore, the hinge further comprises a helical spring 14 which, as indicated by the broken line, is against the second opening 114 when the helical spring 14 is mounted to the sleeve 11. One end to be pressed and the other end to be fitted to the protrusion 124. The helical spring 14 device aims to keep both the cam device 13 and the cam follower 12 in a fixed position. The hinge further includes a shaft 15 made of metal. The shaft 15 has a circular top member 151, a neck 152 coupled to an edge of the hole 134, a main shank 153, and a cylindrical bottom protrusion having a smaller diameter than the shank 153. 154). The shaft 15 penetrates the helical spring 14, the cam follower 12, and the cam device 13, and is also the top member 151 of the shaft, which is horizontal with the flat top surface 135, and the washer ( And a bottom protrusion 154 exiting through the second opening 114 to tightly engage 16. In addition to the helical spring 14 and the shaft 15, the cam follower 12 and the cam device 13 rotate the cam device 13, as will be described in detail later, resulting in the cam follower 12 being rotated. The hinge is mounted to the sleeve 11 to actuate by turning.

3A, 3B, and 4, the operation of the present invention for opening and closing the flap cover 17 with respect to the body portion 18 of the cellular phone will be described in detail below. In the first position, the flap cover 17 is closed on the body portion 18 while the cam device 13 and the cam follower 12 maintain the position (shown in FIG. 3A). Rotating the cam device 13 (ie, rotating the cam member 132 and the bottom cavity 133) relative to the cam follower 12 (i.e., the groove 123 and the raised member 122). ] Will result in moving the cam device 13 and the cam follower 12 to a second position (the position shown in FIG. 3B). That is, the flap cover 17 is rotated in the axial direction to form a predetermined angle with respect to the body portion 18 in the open state.

Referring again to FIG. 4, in a typical example of the present invention, the hinge is mounted to the engaging portion of the flap cover 17 and the body portion 18 of the cellular phone. As shown, the flat portion 111 of the sleeve 11 is fixed to the body portion 18, and the flat portion 131 of the cam device 13 is fixed to the flap cover 17, respectively. Thus, the user can open the flap cover 17 with respect to the body portion 18 (ie to the second position) or close the flap cover 17 (ie to the first position).

While the invention disclosed herein has been described by way of specific embodiments, numerous modifications and various embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, the appended claims are intended to cover all those mentioned above.

With a small number of parts and a simple configuration, such as a combination of a cam device, cam follower, shaft, and spring, the present invention is structurally complex and simplifies, miniaturizes, and assembles the structure itself, unlike a hinge according to the bulky prior art. It shows effects such as ease of use, increased strength, and increased service life.

Claims (2)

Hinge mounted on the joint of two parts, A sleeve fixed to the first component and comprising a plurality of longitudinal slots on the inner wall; A cam follower comprising a plurality of longitudinal ridges on an outer surface fitted in the slot, wherein the cam follower is oriented to move the ridge downwardly to a fixed position or upwards to a non-fixed position along the slot. Cam followers; A cam device means fixed to a second component, wherein the cam follower means comprises two cam follower members on both the bottom cavity and the cavity, wherein the cavity and the cam follower member comprise the cam device means. Cam device means coupled to the raised member and the groove, respectively, to rotate in a first position or a second position relative to the sleeve; A spring in the sleeve, the spring having one end against the bottom of the sleeve and the other end against the cam follower to hold the cam means and the cam follower in the fixed position; And The cam follower is moved downwardly to a fixed position relative to the sleeve or upwardly to a non-fixed position and one end passes through the cam follower and the spring to control movement of the cam follower, A shaft having the other end fixed to the cam means to rotate from a first position to the second position or from the second position to the first position, Hinge. The method of claim 1, The sleeve further comprises a washer at the bottom, the washer being fixed to the one end of the shaft, Hinge.