CN2642957Y

CN2642957Y - Hinge device

Info

Publication number: CN2642957Y
Application number: CNU032740832U
Authority: CN
Inventors: 吴峰; 田仕华; 姜盛克; 许盛城
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2003-08-29
Filing date: 2003-08-29
Publication date: 2004-09-22
Anticipated expiration: 2013-08-29

Abstract

A hinge device comprises a first shell, a second shell, a follower, a cam, a shaft, a plug pin and an elastic device; wherein, the first shell is open on one end, the other end of the first shell is a semi-enclosed bottom cover provided with a circular hole, an accommodation part is arranged at the side close to the opening, the follower is provided with a outraged part disposed inside the accommodation part of the first shell, the outraged part is provided with a convex part, the top of the convex part is a plane, both sides of the convex part are arc surface, the cam is provided with a horizontal part with a concave valley and a plane surface, the concave surfaces of the concave valley consists of a plurality of small planes, the cam is fixed inside the second shell, a convex edge is arranged at a side of the shaft, a pin hole is arranged on the other side of the shaft, the shaft passes through the first shell, the elastic device, the follower, the cam and the second shell, and the shaft is fixed by plugging the plug pin into the pin hole.

Description

Hinge means

[technical field]

The utility model is about a kind of hinge means, especially about a kind of hinge means that is used for folding-type electronic device.

[background technology]

Along with developing rapidly of the wireless communication technology and the information processing technology, mobile phone, PDA portable electron devices such as (personal digital assistants) make the customer can enjoy all facilities that high-tech brings whenever and wherever possible, and wherein folding-type electronic device extensively gets consumer reception because of the exquisite novelty of its structure.

Folding-type electronic device is used hinge means and is connected its body and renovate, and a kind of existing hinge means sees also Fig. 6 as the announcement of No. 98119790.6 institute of Chinese patent, and this hinge means includes: spools 10, be provided with flange part 12 in the one end; The fixed part 20 of band rotation preventive mechanism, it is positioned axle 10 the other end, the stationary cam 30 of band rotation preventive mechanism, this axle 10 can pass stationary cam 30 and with its rotating connection, this stationary cam 30 and body relative fixed, the one end is provided with cam part 32; Rotational slide cam 40, it is located between stationary cam 30 and the fixed part 20, combines with the axle 10 of inserting its central part, endwisely slip along axle 10 with axle 10 co-rotation and energy, one end face of this rotational slide cam 40 is provided with protuberance 42, can cooperate with stationary cam 30; And be located at compression spring 50 between rotational slide cam 40 and the fixed part 20, in order to pressing and fixing cam 30 and rotational slide cam 40.

When the protuberance 42 of rotational slide cam 40 was positioned at the recess of cam part 32 of stationary cam 30, folding-type electronic device was a closed condition.Renovate when opening when making, protuberance 42 moves to protuberance from the recess of cam part 32, becomes about 160 ° angle, enters recess once more by protuberance 42 and locks.The stable state of closing with 160 ° of unlatchings can satisfy the general operational requirements of user, but can not satisfy the user to renovating the demand of multi-angle location.In addition, the protuberance 42 of rotational slide cam 40 is angular design, through repeatedly using, can become slick and sly after the repeated friction, makes to connect and becomes flexible.

At the problems referred to above, but provide a kind of hinge means durable in use, that the folding-type electronic device multi-angle is used to be necessity in fact.

[utility model content]

But the purpose of this utility model is to provide a kind of hinge means that the folding-type electronic device multi-angle is used.

Another purpose of the present utility model is to provide a kind of long-lived hinge means.

In order to realize the purpose of this utility model, the utility model provides a kind of hinge means, comprises a follower, its tool one protuberance; One cam, its tool two trench and two horizontal parts; With an elastic device, in order to pressing follower and cam, wherein, the side that the horizontal part of cam contacts with follower is the plane, and when the protuberance of follower was positioned on this plane, hinge means can be in stable state.The raised part top is a plane, and both sides are cambered surface.

Compare two stable states that existing hinge means provides, the protuberance of the follower of the utility model hinge means produces trench and when forwarding on the horizontal part of cam, because this horizontal part is the plane, renovate with main body relatively stable with follower and the relatively-stationary folding-type electronic device of cam, promptly all can stop in the optional position, up to going back to trench again, renovate the needs of locating with the main body multi-angle thereby satisfy folding-type electronic device.In addition, the protuberance both sides of the utility model hinge means follower are cambered surface, can after repeatedly using repeated friction shape are damaged, thereby make hinge means durable in use.

[description of drawings]

Fig. 1 is the exploded perspective view of the utility model hinge means.

Fig. 2 is the assembling stereogram that the utility model hinge means follower is positioned at trench.

Fig. 3 is the sectional view of Fig. 2 along the III-III line.

Fig. 4 is the assembling stereogram that the utility model hinge means follower is positioned at horizontal part.

Fig. 5 is the sectional view of Fig. 4 along the V-V line.

Fig. 6 is the exploded perspective view of existing hinge means.

[specific embodiment]

See also Fig. 1 and Fig. 2, the utility model hinge means comprises first housing 1, second housing 2, follower 3, cam 4, axle 5, latch 6 and spring 7, spring 7 and follower 3 are immobilizated in first housing 1, cam 4 is immobilizated in second housing 2, axle 5 passes first housing 1, spring 7, follower 3, cam 4 and second housing 2 successively, fixes by 6 pairs of axles 5 of latch.

First housing 1 is cylindric, one end opening (figure do not show), and the other end is the semiclosed bottom 11 of tool one circular hole 12, in this bottom 11 outside tools one flange 13, this flange 13 is made by synthetic resin such as nylon.Be provided with a plurality of locating slots 14 that constitute rotation stop device in this first housing, 1 periphery, a plurality of positioning convex portions (figure does not show) in its connecting portion of renovating with folding-type electronic device closely cooperate mutually, make this first housing 1 be fixed in this and renovate, and with renovate together rotation.First housing 1 is near opening one side tool two holding parts 15.

Follower 3 is made by SKD (alloy tool steel), tool two protuberances 31, two horizontal parts 32 and a through hole 33, the shape of this protuberance 31 is corresponding with the shape of the holding part 15 of first housing 1, the size of horizontal part 32 is less than the internal diameter of first housing 1, thereby follower 3 is immobilizated in first housing 1, relatively rotate with first housing, 1 nothing, and can be along the axial moving linearly of first housing 1.Tool one protuberance 34 on the protuberance 31, these protuberance 34 tops are a plane, and both sides are cambered surface, and the surface of horizontal part 32 is the plane.

Cam 4 is also made by SKD, tool two trench 41, two horizontal parts 42 and a through hole 43, and the concave surface of this trench 41 is to be made of a plurality of facets, the surface of horizontal part 42 is the plane.

Second housing 2 also is cylindric, a plurality of positioners 21 of one end tool, and this positioner 21 combines with the connecting portion of folding-type electronic device main body, makes hinge means can not break away from connecting portion.Other end tool one groove 22, groove floor is established a positioning block 23, and the shape of this groove 22 is corresponding with the shape of cam 4, and the shape of locating piece 23 is corresponding with the shape of the through hole 43 of cam 4, thereby cam 4 is immobilizated in second housing 2, and relatively rotates with second housing, 2 nothings.Be provided with a plurality of locating slots 24 that constitute rotation stop device in second housing, 2 peripheries, it closely cooperates mutually with a plurality of positioning convex portions (scheming not show) in the connecting portion of folding-type electronic device main body, and this second housing 2 is fixed on this main body.These second housing, 2 centers are provided with a distortion through hole 25.

Axle 5 one side tools one flange 51 is cylindrical axial region 52 near flange 51 1 ends, and the other end is distortion axial region 53, and its shape is corresponding with the shape of the distortion through hole 25 of second housing 2, and second housing 2 is rotated with axle 5.Distortion axial region 53 is established a pin-and-hole 54.

Latch 6 is a cylinder, and the one end is cone-shaped, be convenient in the pin-and-hole 54 that latch 6 inserts axle 5, but latch 6 and pin-and-hole 54 interference fit makes the latch 6 can be from pin-and-hole 54 slippages.The length of latch 6 is greater than the length of pin-and-hole 54.

During assembling, spring 7, follower 3 are put into first housing 1 successively, the protuberance 31 of follower 3 is placed in the holding part 15 of first housing 1, cam 4 is put into the groove 22 of second housing 2, the locating piece 23 of second housing 2 is placed in the through hole 43 of cam 4, allow axle 5 pass first housing 1, spring 7, follower 3, cam 4 and second housing 2 successively then, latch 6 is inserted under the effect of external force in the pin-and-hole 54 of axle 5, make axle 5 fixing.

See also Fig. 3, Fig. 4 and Fig. 5, when the protuberance 34 of follower 3 is positioned at the trench 41 of cam 4, spring 7 elastic force minimums, the two is in stable state.

If the application of force makes first housing 1 rotate relative to second housing 2, follower 3 also rotates with respect to cam 4, and it moves relative to the trench 41 of cam 4 and the plane of horizontal part 42, and endwisely slips along the holding part 15 of first housing 1, and spring 7 is simultaneously with its elastic shrinkage.The protuberance 34 of follower 3 produces trench 41 and when forwarding on the horizontal part 42 of cam 4, because this horizontal part 42 is the plane, this first housing 1 and second housing 2 are relatively stable, promptly all can stop in the optional position, up to going back to trench 41 again, renovate the needs of locating with the main body multi-angle thereby satisfy folding-type electronic device.

Claims

1. a hinge means comprises: a follower, its tool one protuberance; One cam, its tool two trench; With an elastic device, in order to pressing follower and cam, it is characterized in that: this cam further comprises two horizontal parts, and the side that this horizontal part contacts with follower is the plane, and when the protuberance of follower was positioned on this plane, hinge means can be in stable state.

2. hinge means as claimed in claim 1 is characterized in that: this hinge means further comprises one, one end tool one flange.

3. hinge means as claimed in claim 2 is characterized in that: this hinge means further comprises a latch, other end tool one pin-and-hole of described axle, and this latch inserts in this pin-and-hole.

4. hinge means as claimed in claim 3 is characterized in that: this hinge means further comprises one first housing, and this first housing is positioned at flange one end of axle, one end opening.

5. hinge means as claimed in claim 4 is characterized in that: described first housing is near opening one side tool holding part, and described follower tool is placed in the protuberance in this holding part.

6. hinge means as claimed in claim 5 is characterized in that: described protuberance is formed on the protuberance, and this protuberance top is a plane, and both sides are cambered surface.

7. hinge means as claimed in claim 6 is characterized in that: the concave surface of described trench is to be made of a plurality of facets.

8. hinge means as claimed in claim 7 is characterized in that: this hinge means further comprises one second housing, and this second housing center is provided with a distortion through hole.

9. hinge means as claimed in claim 8 is characterized in that: described axle is cylindrical axial region near flange one end, and the other end is the distortion axial region, and the shape of this distortion axial region is corresponding with the shape of the distortion through hole of second housing.

10. hinge means as claimed in claim 9 is characterized in that: the groove of the described second housing tool, one fixing cam.