KR200342816Y1 - Hinge apparatus - Google Patents

Abstract

The present invention relates to a hinge device mounted between a main body portion and a cover portion provided on one surface of the main body portion to rotate the cover portion with respect to the main body portion, the main body bracket being mounted on any one side of the main body portion; A cover bracket mounted to the cover part; A tilting driving part for tilting the cover bracket with respect to the main body bracket; It characterized in that it comprises a swivel drive for swivel the cover bracket while interacting with the tilting drive having a ball-type rotating means. As a result, by changing the rotation method of the cover portion from the cam type to the ball type, the cover portion can be rotated more smoothly and smoothly, and the maintenance rate can be reduced by preventing the failure rate.

Description

Hinge apparatus

The present invention relates to a hinge device, and more specifically, by changing the rotation method of the cover portion from the cam type to the ball type to allow the cover portion to be rotated more smoothly and smoothly, and to prevent the failure rate to reduce maintenance costs It is about a hinge device that allows.

One device in which the hinge device is used is a mobile phone which is commonly encountered in the vicinity. Mobile phones, which are frequently used anytime, anywhere, regardless of gender, are divided into flip type phones and clamshell phones according to their appearance.

Flip-type mobile phones are designed to be opened and closed by flipping only the part with the input button while the display window is exposed to the outside. In the case of a folding type mobile phone, the cover part blocks both the display window and the input button with the center hinge portion. As a result of the opening, the latter has a higher preference for the latter type of cellular phone than the former flip type.

With the development of the industry, with the development of mobile phone technology, the mobile phone is not only getting smaller in size but also adding various kinds of functions. The representative one is that the mobile Internet environment is possible so that e-mail transmission and reception and various Internet services can be performed through a mobile phone.

In addition, the near mobile phone is equipped with a digital camera integrally, and has a function as a photographing device for photographing an object in addition to the function as a communication means.

However, in the process of adding the camera to the cellular phone, there is a need for more free rotation of the cover with respect to the main body as a means for imaging the camera.

For example, there is a need for a structure capable of rotating the cover part by a predetermined angle at a predetermined position away from the structure in which the cover part is simply rotated up and down with respect to the main body part, and the development of a hinge device for satisfying this has been accelerated. As an example, the hinge structure known from Korean Patent Application No. 202000-0033775 or Korean Patent Application No. 20-2002-0031121 also shows a structure for more conveniently improving the rotational structure of the cover part relative to the main body part.

However, the hinge structure described above is merely a structure that allows the cover part to be rotated up and down relative to the main body part, and cannot open the cover part at an angle at a predetermined position.

However, in the hinge device of the mobile phone, which is being introduced in recent years, the cover part can be rotated up and down with respect to the main body part, and the open cover part can be rotated by a predetermined angle at a predetermined position. Because of the cam type, the rotation is not smooth and easily breaks down.

Accordingly, an object of the present invention is to change the rotation method of the cover portion from the cam type to the ball type to make the cover portion more smoothly and smoothly, and to prevent the failure rate to reduce the maintenance cost of the hinge device To provide.

1 is a perspective view of a folder-type mobile phone to which a hinge device according to the present invention is applied;

2 and 3 are views schematically showing a state in which the cover unit tilting and swivel operation with respect to the main body portion due to the hinge device according to the present invention,

4 is a perspective view of a hinge device according to the present invention,

5 is a partial cross-sectional view of FIG. 4;

6 is an enlarged exploded perspective view of FIG. 4;

7 is an enlarged plan view of the tilting axis.

* Explanation of symbols for the main parts of the drawings

1 body part 2 cover part

10: hinge device 20: main body bracket

31,32: Cover bracket 40: Tilting drive part

41: boss portion 42: tilting shaft

51: restraining portion 52: the first coil spring

54: fixed cam 56: movable cam

60: swivel drive 61: swivel shaft

64: leaf spring 65: swivel cam

66: ball member 67: second coil spring

68: spring bracket 71: fastening member

The object is, according to the present invention, in the hinge device which is mounted between the main body portion and the cover portion provided on one surface of the main body portion to rotate the cover portion relative to the main body portion, the main body bracket is mounted on any one side of the main body portion and; A cover bracket mounted to the cover part; A tilting driving part for tilting the cover bracket with respect to the main body bracket; It is achieved by a hinge device, which includes a swivel drive that swivels the cover bracket while interacting with the tilting drive with a ball-type rotating means.

Here, the tilting driving portion, the boss portion provided on one side of the cover bracket and having a boss hole of a non-circular cross-section therein; A tilting shaft having one end fixed to the cover bracket on the other side and the other end inserted into the boss hole of the boss portion; And a constraint portion provided between the tilting shaft and the inner surface of the boss to gradually restrict and release the rotation of the tilting shaft.

The tilting shaft includes: a first shaft inserted into the boss hole; A second shaft having a diameter relatively larger than a diameter of the first shaft at a position spaced apart from the first shaft; It consists of a connecting shaft of a non-circular cross section interconnecting the first and second axes.

The exposed ends of the first and second shafts are fixed to the plate surfaces of the respective cover brackets, and a first spacer having a pair of notches spaced apart from each other is formed at an end of the first shaft in contact with the connecting shaft. Second and third spacers spaced apart from each other at both ends are formed integrally with the second axis, and a through hole is formed at a plate surface of the connecting shaft.

The restraining part may include: a first coil spring inserted into the boss hole in the boss part side by side along the longitudinal direction of the tilting shaft; A fixed cam provided at one end of the first coil spring and having a plurality of concave-convex portions formed on one surface of which the valley and the government are repeated; And a movable cam which interacts with the fixed cam with a protrusion moving along the valley and the government of the fixed cam in conjunction with the rotation of the cover part.

A pair of fixing flanges are formed on both side surfaces of the fixed cam so as to extend outward in a radial direction and fixed at an inner surface of the boss hole of the boss portion.

One surface of the movable cam is provided with a pair of extension flanges which are fitted to the notches, respectively.

The swivel drive unit, one end is fixed to the main body bracket and the other end is a swivel shaft exposed through the connecting shaft; A swivel cam disposed at an exposed end of the swivel shaft; A swivel cam disposed to overlap the swivel cam; A pair of ball members selectively disposed in a pair of ball grooves formed on one surface of the connection shaft facing the main bracket; Second coil springs each holding the pair of ball members with an elastic force; Spring brackets for preventing the departure of the second coil spring; And a fastening member for fastening and releasing the leaf spring and the swivel cam to the swivel shaft.

The swivel shaft has a fourth spacer located in the coupling hole region of the main bracket; The fifth spacer is spaced apart from the fourth spacer to prevent movement of the spring bracket and has a non-circular cross section and a rib is formed at one side thereof.

The spring bracket, and the horizontal portion for supporting the second coil spring; A vertical portion bent at approximately a right angle to the horizontal portion.

A through hole through which the swivel shaft passes is formed in the plate surface of the horizontal portion and a groove corresponding to each other is formed in the side portion; The plate surface of the vertical portion is provided with a fastening screw portion for fastening the spring bracket to the connecting shaft.

Hereinafter, with reference to the accompanying drawings will be described in detail for the subject innovation.

1 is a perspective view of a folder-type mobile phone to which a hinge device according to the present invention is applied, and FIGS. 2 and 3 schematically show a state in which a cover unit is tilted and swiveled with respect to a body part due to the hinge device according to the present invention. One drawing.

As shown in these figures, the mobile telephone according to an embodiment of the present invention, as shown in Figures 1 to 3, to open and close while rotating the main body portion 1 and one surface of the main body portion 1 It has a cover part 2.

And between the main body part 1 and the cover part 2, the hinge part 10 which rotates the cover part 2 with respect to the main body part 1 is provided. For convenience of explanation, the rotation of the cover 2 with respect to the main body 1 as shown in FIG. 2 will be described as " tilting ", and as shown in FIG. The 2) rotation will be described as "Swivel".

A plurality of input buttons 1a are provided on the front surface of the main body 1, and a microphone (not shown) is provided below the input button 1a for transmitting a user's voice to the other party. Although not shown, the side of the main body 1 is provided with a function button for selecting the adjustment of the keyphone, ring tone selection, and the like.

The display window 2a is provided in the inner surface of the cover part 2. The display window 2a displays the telephone number, the state of charge of the battery, the presence of vibration, the alarm state, etc. by selection of the input button 1a and the function button.

Of course, referring to Figures 2 and 3, the display window (2a) is provided on the inner surface of the cover portion 2, but in some cases may be provided in the main body portion 1, as such, where the display window (2a) is disposed Even if it is not related to the idea of the present invention. For this reason, the position and configuration of the input button 1a, the function button, and other various configurations (including a camera, etc.) can be changed as appropriate.

Figure 4 is a perspective view of the hinge device according to the present invention, Figure 5 is a partial cross-sectional view of Figure 4, Figure 6 is an enlarged exploded perspective view of FIG.

Since the hinge device 10 having the configuration shown in these figures is mounted between the main body 1 and the cover 2 as shown in FIG. 1, the cover 2 may be tilted with respect to the main body as shown in FIG. 2. It may be swivel as shown in FIG.

Then, the hinge device 10 as a configuration for tilting and swiveling the cover 2 will be described in more detail as follows.

Referring to FIGS. 4 and 5, but mainly referring to FIG. 6, the hinge device 10 according to the present invention includes a main body bracket 20 mounted on the main body 1 and a cover mounted on the cover 2. Cover bracket while interacting with the tilting drive part 40 with the brackets 31 and 32, the tilting drive part 40 for tilting the cover brackets 31 and 32 with respect to the main body bracket 20, and the ball-type rotating means. And a swivel driver 60 for swiveling (31,32).

The main body bracket 20 is a main body shaft 21 in which a coupling hole 21a is formed on a plate surface, and a pair of main bodies which are bent at both ends of the main body shaft 21 and fixed to one surface of the main body portion 1. It consists of a fixed portion (22). A separate fixing means such as a screw is inserted into the pair of main body fixing parts 22 to fasten the main body bracket 20 to the main body part 1.

The cover brackets 31 and 32 also serve to be fixed to the cover part 2 similarly to the main bracket 20. However, while the main body bracket 20 is composed of a single unitary structure, the cover brackets 31 and 32 exist in a pair separated from each other, and the tilting driving unit 40 and the swivel driving unit described above are interposed therebetween. 60 are assembled in interconnection. Hereinafter, for convenience of description, a pair of cover brackets 31 and 32 will be referred to as first and second cover brackets 31 and 32 in consideration of their positions.

The tilting driving portion 40 is provided in the first cover bracket 31 and has a boss portion 41 having a non-circular cross section boss hole 41a therein, and one end is fixed to the second cover bracket 32 and the other end thereof. Is provided between the tilting shaft 42 inserted into the boss hole 41a of the boss portion 41 and the tilting shaft 42 and the inner surface of the boss portion 41 to restrain the rotation of the tilting shaft 42 step by step. It has a restraint part 51 which releases restraint.

The tilting shaft 42 has a diameter relatively larger than that of the first shaft 43 inserted into the boss hole 41a and spaced apart from the first shaft 43 at a position spaced apart from the first shaft 43. And a second shaft 46 having a non-circular cross section connecting the first and second shafts 43 and 46 to each other.

The exposed ends 43a and 46a of the first and second shafts 43 and 46 (see FIG. 7) pass through the through holes 33 formed in the plate surfaces of the first and second cover brackets 31 and 32, respectively. After the predetermined length is exposed, the washer 34 and the fixing part 35 are fixed to the first and second cover brackets 31 and 32 integrally.

At the end of the first shaft 43 in contact with the connecting shaft 49 is provided a first spacer 44 formed with a pair of notches spaced apart from each other on the side, and both ends of the second shaft 46 are respectively spaced apart from each other. The second and third spacers 47 and 48 are integrally formed with the second shaft 46.

In addition, an axial through hole 49a through which the swivel shaft 61 to be described later partially passes through the plate surface of the connecting shaft 49. On the other hand, as shown in Figure 7, a pair of ball grooves (G ', G ") is formed on one surface of the connecting shaft 49, the ball member 66, which is one component of the swivel drive unit 60 is connected Rolling one surface of the shaft 49 is seated and supported in the corresponding ball groove (G ', G ") to form a limit point of the swivel.

The restraint part 51 again has the first coil spring 52 and the first coil spring 52 which are inserted side by side in the boss hole 41a of the boss part 41 along the longitudinal direction of the tilting shaft 42. A fixed cam 54 provided at one end of the fixed cam 54 and having a plurality of uneven parts 54a and 54b formed on one surface thereof facing the second cover bracket 32, and the fixed cam 54 interlocked with the rotation of the cover part 2. It consists of a movable cam 56 interacting with the fixed cam (54) having a protrusion (54a) of the concave-convex portion (54a, 54b) and the projection (56a) moving along the government (54b).

On both sides of the fixing cam 54, a pair of fixing flanges 54c extending radially outward and fixed at the inner surface of the boss hole 41a are formed. In addition, one surface of the movable cam 56 facing the second cover bracket 32 is provided with a pair of extension flanges 56b respectively fitted to a pair of notches formed on the tilting shaft 42. Of course, the inside of the fixed cam 54 and the movable cam 56 are penetrated so that the first shaft 43 can penetrate, respectively, and reference numerals thereof will be omitted.

Thus, if the movable cam 56 is rotated and the projection 56a of the movable cam 56 is inserted into the valley 54a among the uneven portions 54a and 54b of the fixed cam 54, the movable cam 56 is fixed to the movable cam 56. The cams 54 are completely in surface contact without being spaced apart from each other. In this case, the first coil spring 52 is present in its original state.

However, when the projection part 56a of the movable cam 56 is located in the top part 54b among the uneven parts 54a and 54b of the fixed cam 54 by tilting the cover part 2 by a predetermined angle, the movable cam 56 The fixed cam 54 and the movable cam 56 move in a direction to be spaced apart from each other while a predetermined gap is generated between the fixed cam 54 and the fixed cam 54, but there is insufficient space to move further in the boss hole 41a. As a result, the first coil spring 52 is compressed.

Accordingly, the first coil that is compressed by tilting the cover part 2 in a state where the protrusion part 56a of the movable cam 56 is located at the government part 54b among the uneven parts 54a and 54b of the fixed cam 54 is further compressed. The cover part 2 can be tilted more easily because the spring 52 is decompressed and moves the protrusion part 56a of the movable cam 56 to the valley part 54a of the uneven parts 54a and 54b. This helps to keep the cover portion 2 completely closed with respect to the main body portion 1 as shown in FIG. 1 or completely open as shown in FIG.

The swivel driver 60 is inserted into and fixed to the coupling hole 21a of the main body bracket 20, and the other end portion penetrates through the shaft through hole 49a formed in the connecting shaft 49 of the tilting shaft 42. The swivel shaft 61, the swivel cam 65 disposed at the exposed end of the swivel shaft 61, the leaf spring 64 disposed to overlap the swivel cam 65, and the main body bracket 20. A pair of ball members 66 and a pair of ball members 66 selectively disposed in a pair of ball grooves G ', G "formed on one surface of the connecting shaft 49 facing the The spring coil 68, the leaf spring 64, and the swivel cam 65 which prevent the detachment of the second coil spring 67, the second coil spring 67, respectively holding the elastic force of the swivel shaft 61, It includes a fastening member 71 for fastening and unfastening to the coupling portion (61a).

The swivel shaft 61 is provided with a fourth spacer 62 located in the engagement hole 21a region of the main bracket 20, and the spring bracket 68 is moved at a position spaced apart from the fourth spacer 62. A fifth spacer 63 for blocking is provided. Ribs are formed on one side of the fifth spacer 63 having a non-circular cross-sectional shape.

The plate surface of the leaf spring 64 is penetrated so that the fastening member can pass, and has a convex shape upward. The leaf spring 64 is provided to allow each component including the swivel cam 65 to be coupled to the swivel shaft 61 with a stronger elastic force, but is not a necessary configuration.

The plate surface of the swivel cam 65 is also penetrated so that the fastening member can pass. The swivel cam 65 is made of a relatively thicker material than the leaf spring 64, the lower region has a circular shape, whereas the upper region has a non-circular shape.

The spring bracket 68 is comprised of the horizontal part 69 which supports the 2nd coil spring 67, and the vertical part 70 bent at substantially right angle with respect to the horizontal part 69. As shown in FIG. The through surface 69a for the swivel shaft 61 to pass through is formed in the plate surface of the horizontal part 69, and the groove | channel 69b corresponding to each other is formed in the side part. In addition, a fastening screw portion 70a for fastening the spring bracket 68 to the connecting shaft 49 is formed on the plate surface of the vertical portion 70.

When the hinge unit 10 having such a configuration is used to tilt the cover 2 as shown in FIG. 2 or swivel as shown in FIG. 3, the following description will be given.

As shown in FIG. 2, if the cover portion 2 is to be tilted with respect to the body portion 1, the cover portion 2 is rotated while the body portion 1 is held. As the cover part 2 rotates, the tilting shaft 42, which is one of the configurations coupled thereto, rotates.

On the other hand, since the extension flange portion 56b of the movable cam 56 is fitted in the notch, when the tilting shaft 42 rotates, the movable cam 56 also rotates. When the movable cam 56 rotates as described above, the protrusion 56a of the movable cam 56 rotates while being engaged with either one of the bone portion 54a or the top portion 54b of the uneven portions 54a and 54b of the fixed cam 54. do.

If the projection 56a of the movable cam 56 is inserted into the valley portion 54a of the fixed cam 54, the movable cam 56 and the fixed cam 54 are completely contacted without being spaced apart from each other. In this case, the first coil spring 52 is present in its original state. However, when the protrusion 56a of the movable cam 56 is positioned at the top portion 54b of the uneven portions 54a and 54b of the fixed cam 54 in the process of tilting the cover portion 2, the first coil spring 52 is compressed.

When the cover portion 2 is tilted more in this state, the compressed first coil spring 52 is decompressed and the protrusions 56a of the movable cam 56 are moved to the valleys 54a of the uneven portions 54a and 54b. The cover portion 2 can be maintained in the same state as in FIG.

On the other hand, as shown in FIG. 3, if only the cover 2 is to be swiveled alone, first, the cover 2 is grasped and swiveled in one direction. Then, the first and second cover brackets 31 and 32 may be swivel at a predetermined angle about the swivel shaft 61.

As described above, the pair of ball members 66 moving in the process of partially swiveling the predetermined configuration of the swivel driving part 60 moves one surface of the connecting shaft 49 toward the main body bracket 20 (dotted line in FIG. 7). Reference) is selectively fitted into a pair of ball grooves G ', G "formed on one surface of the connecting shaft 49 (see FIG. 7).

Of course, even when the pair of ball members 66 are inserted into the pair of ball grooves G ', G "(see FIG. 7), the second coil spring 67 elastically holds the pair of ball members 66. It is a state which pressurizes, and this state becomes a limit point of a swivel.

Therefore, as shown in FIG. 3, when the cover part 2 is swiveled by a predetermined angle to reach the swivel limit point, the pair of ball members 66 are inserted into the pair of ball grooves G ', G "(see FIG. 7). Since the cover portion 2 is free from play, it can be maintained at the position as shown in FIG. 3.

After all, if a pair of ball members 66 is a ball type that is selectively inserted into or taken out of a pair of ball grooves (G ', G ", see Figure 7), much smoother and smoother than the conventional cam type Not only can the cover 2 be swiveled, but the cover 2 can be fixed in place without play, and the maintenance cost can be reduced by reducing the failure rate.

As described above, according to the present invention, by changing the rotation method of the cover portion from the cam type to the ball type to make the cover portion rotate more smoothly and smoothly, the hinge to prevent the failure rate to reduce the maintenance cost An apparatus is provided.

Claims (11)

A hinge device mounted between a main body and a cover provided on one surface of the main body to rotate the cover with respect to the main body. A main body bracket mounted on one side of the main body portion; A cover bracket mounted to the cover part; A tilting driving part for tilting the cover bracket with respect to the main body bracket; And a swivel drive portion for swiveling the cover bracket while interacting with the tilting drive portion with a ball-type rotating means. The method of claim 1, The tilting driving unit is provided on one side of the cover bracket boss having a non-circular cross section boss hole therein; A tilting shaft having one end fixed to the cover bracket on the other side and the other end inserted into the boss hole of the boss portion; And a constraining portion provided between the tilting shaft and an inner surface of the boss portion to constrain and release the rotation of the tilting shaft in stages. The method of claim 2, The tilting shaft includes: a first shaft inserted into the boss hole; A second shaft having a diameter relatively larger than a diameter of the first shaft at a position spaced apart from the first shaft; And a connecting shaft of a non-circular cross section interconnecting said first and second axes. The method of claim 3, The exposed ends of the first and second shafts are fixed to the plate surfaces of the respective cover brackets, and a first spacer having a pair of notches spaced apart from each other is formed at an end of the first shaft in contact with the connecting shaft. A hinge device, characterized in that the second and third spacers spaced apart from each other on both ends are integrally formed with the second axis, and a through hole is formed on the plate surface of the connecting shaft. The method of claim 4, wherein The restraining part may include: a first coil spring inserted into the boss hole in the boss part side by side along the longitudinal direction of the tilting shaft; A fixed cam provided at one end of the first coil spring and having a plurality of concave-convex portions formed on one surface of which the valley part and the government are repeated; And a movable cam which interacts with the fixed cam with a protrusion moving along the valley and the government of the fixed cam in association with the rotation of the cover part. The method of claim 5, A hinge device, characterized in that a pair of fixed flanges are formed on both sides of the fixed cam extending radially outward and fixed at the inner surface of the boss hole of the boss portion. The method of claim 5, A hinge device, characterized in that a pair of extension flanges are formed on one surface of the movable cam, each of which is fitted to the notch. The method according to any one of claims 1 to 7, wherein The swivel drive unit, one end is fixed to the main body bracket and the other end is a swivel shaft exposed through the connecting shaft; A swivel cam disposed at an exposed end of the swivel shaft; A swivel cam disposed to overlap the swivel cam; A pair of ball members selectively disposed in a pair of ball grooves formed on one surface of the connection shaft facing the main bracket; Second coil springs each holding the pair of ball members with an elastic force; Spring brackets for preventing the departure of the second coil spring; And a fastening member for fastening and releasing the leaf spring and the swivel cam to the swivel shaft. The method of claim 8, The swivel shaft has a fourth spacer located in the coupling hole region of the main bracket; A hinge apparatus, characterized in that a fifth spacer having a non-circular cross section and a rib formed on one side is provided while being spaced apart from the fourth spacer to prevent movement of the spring bracket. The method of claim 8, The spring bracket, and the horizontal portion for supporting the second coil spring; And a vertical portion bent at approximately right angles to the horizontal portion. The method of claim 10, A through hole through which the swivel shaft passes is formed in the plate surface of the horizontal portion and a groove corresponding to each other is formed in the side portion; The hinge device, characterized in that the fastening screw portion for fastening the spring bracket to the connecting shaft is formed on the vertical surface.