CN2597736Y

CN2597736Y - Clamped friction hinge

Info

Publication number: CN2597736Y
Application number: CNU032152116U
Authority: CN
Inventors: 蔡权秉
Original assignee: QINGDAO PYUNGKANG ELECTRONICS CO Ltd
Current assignee: QINGDAO PYUNGKANG ELECTRONICS CO Ltd
Priority date: 2003-02-18
Filing date: 2003-02-18
Publication date: 2004-01-07
Anticipated expiration: 2013-02-18

Abstract

The utility model relates to a clip friction hinge that can effectively make the object kept a certain angle or position, which aims at solving the technical issues of that assembly is complex and the service life is short in the prior art. The utility model comprises a hinge axis and an axis sleeve. One end of the hinge axis is a fixed part, while the other end is a rotating axis that is inserted into the axis sleeve. The utility model is characterized in that: the rotating axis is sheathed with two mutually fastened semicircle cambered torsion spring plates whose lower end is provided with a protruding part, while the protruding part is inserted into a fixed groove that is arranged in the axis sleeve, and the outer periphery of the torsion spring plate is clipped with a C-shaped clip. As the torsion spring applies the split type, the assembly is simple; in addition, as the C-shaped clip is an annular clip with an opening and is expanded outwards, the level of torque value can be adjusted within a certain angle, and the assembly is more convenient so as to greatly increase the production efficiency; additionally, the C-shaped clip is uniformly contacted with the torsion spring plate, the contact area is large, thereby preventing from deforming and improper accidents from occurring.

Description

Folder shape friction hinge

Technical field

The utility model relates to a kind of hinge, and specifically a kind of object that makes is kept several angle or the most effective folder of certain position shape friction hinge.

Background technique

The friction hinge device is to make object keep several angle or the most effective a kind of hinge of certain position.As on the notebook computer, use this friction hinge, when adjusting display device behind the LCD display several angle of opening computer, spring clip in the friction hinge device is opened under pressure, can make display device keep several angle, meanwhile, when the relative together movement of objects of shell of friction hinge and notebook computer or rotation, stop the rapid movement of relative object to reduce the effect of impacting with fricative torque values.Though this friction hinge has its advantage, its shortcoming is to make complexity, is not easy to be made into the form of miniaturization, miniature, and internal performance sharply descends when needing big torque values.In order to address these problems, invented a kind of friction hinge of torsion spring form, as shown in Figure 1 and Figure 2, it comprises axle housing 10, hinge axis 20, one end of hinge axis 20 is fixing part 20c, the other end has screw hole 20d for inserting the running shaft 20a in the axle housing 10 on the fixing part 20c, axle housing 10 is fixedly connected in the cabinet of computer by screw.Insert and be with multi-disc integral type annular torsion spring 30 on the running shaft 20a in the axle housing 10, sagittate protuberance 30a is formed at the bottom of torsion spring 30, be inserted in the fixed groove 10b of axle housing 10, two corresponding oil storage tank 30b are arranged on the inner peripheral surface of torsion spring 30, can reduce the frictional force between the inner peripheral surface of running shaft 20a when rotation and torsion spring 30.During the running shaft 20a of the friction hinge of this structure rotation and torsion spring 30 produce frictional force, can suppress to rotate rapidly and play buffer function, when rotating to an angle, running shaft 20a is kept several angle and position by the elastic pressure of torsion spring 30, no longer rotation.But also there are some defectives in the friction hinge of this structure, the one, because annular torsion spring 30 is an integrated type, when going up, the running shaft 20a in will being inserted into axle housing 10 need long time and labor just can finish, and make complicated; In addition, during owing to running shaft 20a rotation and between the torsion spring 30 frictional force is arranged, produce certain torque, this just requires torsion spring 30 that very high elasticity and intensity will be arranged, otherwise can't use for a long time, easily goes wrong.

Summary of the invention

The utility model is in order to solve technical problems such as assembling complexity that prior art exists and working life is short.

In order to solve the problems of the technologies described above, the utility model comprises hinge axis and axle housing, one end of hinge axis is a fixing part, the other end is for inserting the running shaft in the axle housing, it is characterized in that: on running shaft, be with two semicircular arc torsion films that are interlocked, the torsion film lower end is provided with protuberance, and protuberance is inserted in the interior fixed groove of axle housing, accompanies C clamp on the torsion film periphery.

Also have following feature in the utility model: the protuberance of the torsion film lower end behind the fastening is Shape or

Shape is inserted in the fixed groove in the axle housing.

Also have following feature in the utility model: the surface of contact at fastening place, described two torsion film tops is plane or curved surface.

Also have following feature in the utility model: the cross section of described C clamp is square or circular.

Also have following feature in the utility model: the middle part of described C clamp is thicker than its breach end.

The utlity model has following advantage and good effect: because the torsion film that the utility model is enclosed within on the running shaft is split type, therefore assembling is simple, in addition because C clamp is one to have the marmon clamp of breach, can expand outwardly, therefore can adjust the size of torque values at several angle, and when assembling is also more convenient, has improved manufacturing efficiency widely; C clamp and torsion film even contact and surface of contact are bigger in addition, can prevent distortion, prevent the generation of improper accident.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples.

The part section stereogram of the existing friction hinge of Fig. 1 the utility model;

The plan view of the existing friction hinge of Fig. 2 the utility model;

Fig. 3 the utility model part section stereogram;

Fig. 4 the utility model master apparent direction sectional drawing;

One of stereogram of another embodiment of torsion film in Fig. 5 the utility model;

In Fig. 6 the utility model two of another embodiment's of torsion film stereogram;

One of stereogram of C clamp in Fig. 7 the utility model;

In Fig. 8 the utility model two of another embodiment's of C clamp stereogram;

In Fig. 9 the utility model three of another embodiment's of C clamp stereogram.

Among the figure 100, axle housing; 110, axis hole; 120, fixed groove; 200, hinge axis; 210, running shaft; 220, joint; 230, fixing part; 231, screw hole; 300, torsion film; 310, protuberance; 400, C clamp; 410, breach.

Embodiment

Referring to Fig. 3～Fig. 9, the utility model friction hinge comprises hinge axis 200 and axle housing 100, one end of hinge axis 200 is a fixing part 230, the other end is for inserting the running shaft 210 in the axle housing, on running shaft 210, be with two semicircular arc torsion films 300 that are interlocked, torsion film 300 lower ends are provided with protuberance 310, and protuberance 310 is inserted in the fixed groove 120 in the axle housing 100, accompanies a plurality of C clamps 400 on torsion film 300 peripheries.The protuberance 310 of torsion film 300 lower ends behind the fastening is

Shape or

Shape is inserted in the fixed groove 120 in the axle housing 100.Referring to Fig. 5～Fig. 6, the surface of contact at fastening place, two torsion film 300 tops is plane or curved surface.Referring to Fig. 7～Fig. 9, the cross section of C clamp 400 is square or circular, and the middle part of C clamp 400 is thicker than the two ends of its breach 410.

Certainly, above-mentioned explanation is not to be to restriction of the present utility model, and the utility model also is not limited to above-mentioned giving an example; those skilled in the art; in essential scope of the present utility model, the variation of making, remodeling, interpolation or replacement also should belong to protection domain of the present utility model.

Claims

1, a kind of folder shape friction hinge, it comprises hinge axis and axle housing, one end of hinge axis is a fixing part, the other end is for inserting the running shaft in the axle housing, it is characterized in that: on running shaft, be with two semicircular arc torsion films that are interlocked, the torsion film lower end is provided with protuberance, and protuberance is inserted in the interior fixed groove of axle housing, accompanies C clamp on the torsion film periphery.

2, folder shape friction hinge according to claim 1, it is characterized in that: the protuberance of the torsion film lower end behind the fastening is

Shape or Shape.

3, folder shape friction hinge according to claim 1 is characterized in that: the surface of contact at fastening place, described two torsion film tops is plane or curved surface.

4, folder shape friction hinge according to claim 1, it is characterized in that: the cross section of described C clamp is square or circular.

5, folder shape friction hinge according to claim 1, it is characterized in that: the middle part of described C clamp is thicker than its breach end.