CN100467889C

CN100467889C - Hinge device

Info

Publication number: CN100467889C
Application number: CNB2005101020304A
Authority: CN
Inventors: 胡安奎
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: 2005-12-02
Filing date: 2005-12-02
Publication date: 2009-03-11
Anticipated expiration: 2025-12-02
Also published as: CN1978928A

Abstract

The invention discloses hinge device. It includes one support, one base, one pin joint device. The pin joint device includes one pivot, one shaped sheet, one elastic piece, and one fixing piece. The support is set one pivot hole. The base is set one deforming hole. The pivot includes one fixed part and one pivot rotating part. The shaped sheet includes one shaped hole fixed on the support. The elastic piece includes the first and second fixed ends which are respectively fixed on the support and the base. The pivot penetrates through the pivot hole, deforming hole, shaped hole, and the fixing piece which restricts the support, base, shaped sheet, and elastic piece together with the pivot fixed part. The hinge device of the invention can freely locate, and smoothly rotate.

Description

Hinge means

[technical field]

The invention relates to a kind of hinge means, especially about a kind of free locating hinge device.

[background technique]

Along with the extensive use of calculator, the display device of collocation use also trends towards lightening development with it.The traditional type display device is cathode ray tube (CRT) (CRT, a Cathode Ray Tube) display device, and not only volume is greatly and quite heavy, so occur liquid crystal display on the market.The liquid crystal display volume is little, in light weight, and the clearness height has advantages such as low radiation concurrently, and is accepted extensively by market.Yet, have preferable visual angle for making liquid crystal display, need make its screen rotation or swing several angle by hinge means usually.

A kind of existing hinge means, it comprises: a fixed base, a pivot, the pad of a plurality of oil storage holes and a fixing-assembly; This fixed base is bent into L shaped platy structure, has mounting hole on the flat board of fixed base, then has spacing hole on another flat board; This pivot includes a cylindric matrix, matrix one middle side part is extended with one to a side and runs through axle, run through and be formed with the planar surface portion that is parallel to each other on the axle, be provided with screw thread and run through other position that is not formed with planar surface portion, then extend at matrix opposite side middle part a fixing column, has mounting hole on this fixing column; The pad of these several oil storage holes is arranged at respectively between aforementioned fixation seat and pivot matrix, fixed base and the fixing-assembly, and this pad can be with a pivot in unison that runs through of pivot; The described axle that runs through is in the perforation that runs through aforementioned pad, fixed base, and fixedlys connected with this fixing-assembly.Though this hinge means can be realized the rotation of LCD Display, yet, when adjusting the LCD Display angle, comparatively require great effort.

[summary of the invention]

In view of this, providing a kind of freely locatees and to rotate smoothly hinge means real in necessary.

Described hinge means comprises a support, a base and a pivot joint.This pivot joint comprises a pivot, a special-shaped sheet, an elastic component, two shell fragments and a fastener.Offer a pivot hole in this support; Offer a distortion hole in this base, it can rotate relative to support; This pivot comprises a fixing part and a pivot part; This abnormity sheet comprises an irregularly-shaped hole, and its shape is different with described distortion hole, and the relative support of this abnormity sheet is fixed; This elastic component comprises one first fixed end and one second fixed end, and the relative support of this first fixed end is fixed, and the relative base of its second fixed end is fixed, and this elastic component is used for providing torsion between support and base.This pivot runs through the irregularly-shaped hole and the fastener of the pivot hole of this support, the distortion hole of base, special-shaped sheet, and the fixing part of fastener and pivot is limited to support, base, special-shaped sheet and elastic component between the two, and this shell fragment is located at and is used to provide axial force on the pivot.

Compare prior art, described hinge means passes through the torsion of elastic component and the frictional force of each inter-module thereof, the angle of rotatable parts such as adjustable liquid crystal display device, and can freely locate, the torsion of elastic component makes when rotating more smooth and easy; Irregularly-shaped hole by special-shaped sheet limits its angle range simultaneously, and this hinge means is easy to adjust.

The last installing of one preferred embodiment of this hinge means one latch, it inserts an end that is used in the support against elastic component, and elastic component adopts the latch orientation type, is convenient to assembling, has improved efficiency of assembling.

[description of drawings]

Fig. 1 is the schematic representation that hinge means preferred embodiment of the present invention is applied to liquid crystal display;

Fig. 2 is the exploded view of hinge means preferred embodiment of the present invention;

Fig. 3 is the stereogram of hinge means preferred embodiment one direction of the present invention;

Fig. 4 is the stereogram of hinge means preferred embodiment other direction of the present invention;

Fig. 5 is that V-V along Fig. 3 is to partial sectional view.

[embodiment]

Hinge means of the present invention is the example explanation to be applied to liquid crystal display.

See also Fig. 1, this liquid crystal display comprises a display screen housing 100 and a bearing 200, and this display screen housing 100 and bearing 200 are rotatably connected by a hinge means 300.

See also Fig. 2 to Fig. 4, this hinge means 300 comprises a support 10, a base 20 and two pivot joints 30.Each pivot joint 30 includes a pivot 31, a latch 34, one special-shaped sheet 41, a friction plate 42, two packing rings, 51,52, two shell fragments, 61,62, one torsion springs 70, a spacing shim 80 and a nut 90.

This support 10 comprises an assembly department 12, a junction 14 and two extension parts 16.This assembly department 12 is tabular, and it comprises a surface 120, and evenly offers four mounting holes 122 on the assembly department 12, and mounting hole 122 is a through hole.This joint 14 is tabular, and thickness is greater than the thickness of assembly department 12, and one end and assembly department 12 join, and are interval with two subtriangular protruding 142 on its other end.Extension part 16 is located at projection 142 outsides of joint 14, and it extends towards support 10 outsides, and towards surface 120 lopsidedness of assembly department 12.Extension part 16 is roughly cylindric, and its parallel axes is in assembly department 12.Offer the pivot hole 160 at a perforation extension part 16 two ends on the extension part 16, one end of extension part 16 is offered a stomidium 162, its the other end is offered a stomidium 163, and the diameter of this stomidium 162,163 is greater than the diameter of pivot hole 160, and stomidium 162,163 comprises two relative draw-in grooves 164 respectively.Close joint 14 places of extension part 16 offer a through hole 166.

This base 20 comprises a substrate 22 and two side plates 24.This substrate 22 is rectangular plate, and two side plates 24 are located at its two ends respectively, and side plate 24 vertically is located at substrate 22 homonymies.Offer four pilot holes 222 on the substrate 22, be provided with screw thread in the pilot hole 222, this four pilot hole 222 is capable the arranging of " eight " word, the both sides up and down at substrate 22 middle parts offer a half slot 224 respectively, substrate 22 is provided with four bulge loops 226, and bulge loop 226 and corresponding pilot hole 222 are concentric and be located at side plate 24 homonymies.Side plate 24 is offered one first distortion hole 242, and this first distortion hole 242 is " D " shape substantially.

This pivot 31 1 end tools one fixing part 312, the other end tool one pivot part 316.This fixing part 312 is a plate-like, pivot part 316 is roughly column, pivot part 316 relative fixed portions 312 1 ends are provided with outside thread 318, and pivot part 316 is provided with one along the plane 314 that its axial direction extends, and make the sectional shape of pivot part 316 and size corresponding with the first distortion hole 242 of base 20.

This abnormity sheet 41 is roughly circular, and its outer rim place is arranged with two projections 412, its center tool one irregularly-shaped hole 414, and all causes one curved portion of this irregularly-shaped hole 414 and one " く " shape are partly formed.The irregularly-shaped hole 414 that comprises " く " shape part of this abnormity sheet 41 is used to limit the rotation angle of liquid crystal display housing 100.

This friction plate 42 is roughly circular, and its outer rim place is arranged with two projections 422.

This

packing ring

51,52 is the disk of center drilling, and the perforate at its center is that the shape and the size in 512,522, the second distortion holes 512,522, the second distortion hole is corresponding with the first distortion hole 242 of base 20.

This

shell fragment

61,62 is roughly the dish shape sheet of a center drilling, and it has elasticity.

The a plurality of column spring coils of these torsion spring 70 tools (figure mark), it comprises one first fixed end 702 and one second fixed end 704, and this first fixed end 702 radially extends along spring coil, and second fixed end 704 extends axially along spring coil.The spring ring diameter of torsion spring 70 is greater than the external diameter of

packing ring

51,52 and

shell fragment

61,62.

This spacing shim 80 is roughly ring-type, its center tool 1 the 3rd distortion hole 802, and its periphery is provided with a limiting stopper 804.The shape in the 3rd distortion hole 802 and size are corresponding with the first distortion hole 242 of base 20, and limiting stopper 804 extends generally along the involute direction of spacing shim 80.The external diameter of spacing shim 80 is greater than the spring ring diameter of torsion spring 70.

This nut 90 is roughly six prisms, and its center offers screw 902.

During assembling, see also Fig. 5, earlier special-shaped sheet 41, friction plate 42 are arranged at stomidium 162,163 places of support 10, make the projection 412 of special-shaped sheet 41, the projection 422 of friction plate 42 be stuck in draw-in groove 164 places of the stomidium 162,163 of support 10 respectively, therefore special-shaped sheet 41, friction plate 42 can not rotate relative to support 10; Then base 20 corresponding supports 10 are established, make the pivot hole 160 of the first distortion hole, the 242 corresponding supports 10 of base 20, and two side plates 24 of base 20 all are positioned at extension part 16 outsides of support 10, at this moment, pivot 31 is inserted the first distortion hole 242 of base 20 and the pivot hole 160 of support 10 from support 10 outsides, the pivot part 316 of pivot 31 cooperates with the first distortion hole 242 of base 20, so pivot 31 can not rotate relative to base 20; Successively packing ring 51, shell fragment 61, shell fragment 62, packing ring 52, torsion spring 70, spacing shim 80 are overlapped to pivot 31 then,

shell fragment

61,62 is established back-to-back, limiting stopper 804 places of second fixed end 704 of torsion spring 70 by being located at spacing shim 80; Then nut 90 is fixed on the pivot 31 by being threaded, and support 10, base 20, special-shaped sheet 41, friction plate 42, packing ring 51, shell fragment 61, shell fragment 62, packing ring 52, torsion spring 70 and spacing shim 80 be limited to and the fixing part 312 and nut 90 of pivot 31 between; At last latch 34 is inserted the through hole 166 of supports 10 and establish between two extension parts 16 that extend support 10, first fixed end 702 of torsion spring 70 is resisted against latch 34 places, finishes a pivot joint 30 assemblings thus, and another pivot joint 30 assembles in the same manner.This torsion spring 70 is provided with pretightening force, and friction plate 42, packing ring 51,

shell fragment

61,62, packing ring 52, spacing shim 80 and nut 90 are successively closely by establishing.After these hinge means 300 assemblings finish, abnormity sheet 41, friction plate 42 relative supports 10 are fixed, pivot 31,

packing ring

51,52, and spacing shim 80 and nut 90 relative bases 20 are fixed, first fixed end, the 702 relative supports 10 of torsion spring 70 are fixed, and its second fixed end, 704 relative bases 20 are fixed.

When this hinge means 300 was installed on the liquid crystal display, its support 10 was fixed to by its mounting hole 122 on the bearing 200 of liquid crystal display, and base 20 is fixed on the display screen housing 100 of liquid crystal display by its pilot hole 222.

During work, pull the display screen housing 100 of liquid crystal display, display screen housing 100 drives base 20 and rotates together, pivot 31,

packing ring

51,52, spacing shim 80 and nut 90 rotate with base 20 with the cooperation in distortion hole 242,512,522,802 by the pivot part 316 of pivot 31, second fixed end 704 that spacing shim 80 makes torsion spring 71 rotates the torsion that makes torsion spring 70 with base 20 and changes, and the torsion of torsion spring 70 increases because of the difference of base 20 sense of rotation or reduces; The bearing 200 of support 10 relative liquid crystal displays is fixing, when display screen housing 100 turns to several angle, the irregularly-shaped hole 414 of abnormity sheet 41 limits it and is rotated further, and when the plane 314 of pivot 31 was against " く " part of irregularly-shaped hole 414, base 20 promptly can not continue to rotate relative to support 10.In this process, because the elastic force of

shell fragment

61,62 makes friction plate 42, packing ring 51,

shell fragment

61,62, packing ring 52, spacing shim 80 and nut 90 closely against and produce axial force, produce big frictional force between

packing ring

51,52 and

shell fragment

61,62 and the friction plate 42 and make, thereby make base 20 relative supports 10 can remain in the position of being adjusted, realize that promptly the display screen housing 100 of liquid crystal display is freely located.

The pivot part 316 and the irregularly-shaped hole 414 that are appreciated that pivot 31 can be other shape, and only needing it is non-circular cross-section and different getting final product.Can not establish outside thread 318 on the pivot 31, nut 90 also can and adopt other fixing form by other fastener replacement, as welding, riveted joint etc.This hinge means 300 is not limited to be applied on the liquid crystal display, and it also can be used on LCD TVs, notebook and the digital camera etc.Described pivot joint 30 can only be one.Support 10 is not limited to be fixed on the bearing 200 of liquid crystal display, and it also can be fixed on the display screen housing 100 of liquid crystal display, and correspondingly, base 20 also can be fixed on the bearing 200 of liquid crystal display.

Claims

1. hinge means, it comprises a support, a base and a pivot joint, offers a pivot hole in this support, this base can rotate relative to support, it is characterized in that: offer a distortion hole in this base; This pivot joint comprises a pivot, a special-shaped sheet, an elastic component, two shell fragments and a fastener, and this pivot comprises a fixing part and a pivot part; This abnormity sheet comprises an irregularly-shaped hole, and they are different with described distortion hole shape, and the relative support of this abnormity sheet is fixed; This elastic component comprises one first fixed end and one second fixed end, and the relative support of this first fixed end is fixed, and the relative base of its second fixed end is fixed, and this elastic component is used for providing torsion between support and base; This pivot runs through the irregularly-shaped hole and the fastener of the pivot hole of this support, the distortion hole of base, special-shaped sheet, and the fixing part of fastener and pivot is limited to support, base, special-shaped sheet and elastic component between the two, and this shell fragment is located at and is used to provide axial force on the pivot.

2. hinge means as claimed in claim 1, it is characterized in that: the pivot joint of this hinge means also comprises a latch, a friction plate, two packing rings and a spacing shim, this friction plate is sheathed on the pivot, friction plate and special-shaped sheet lay respectively at the support both sides, two shell fragments are sheathed on the pivot back-to-back, two gasket sleeves are located on the pivot, and it is positioned at two shell fragment both sides, and spacing shim is sheathed on the pivot.

3. hinge means as claimed in claim 2 is characterized in that: this support comprises an assembly department, a junction and an extension part, and this assembly department is tabular, and joint is tabular, and the one end links to each other with assembly department, and extension part is located at the joint the other end.

4. hinge means as claimed in claim 3, it is characterized in that: this extension part is roughly cylindric, its parallel axes is in assembly department, described pivot hole connects the extension part two ends, a stomidium is offered at the two ends of extension part respectively, and the stomidium periphery offers two relative draw-in grooves, and the close joint place of this extension part offers a through hole, described latch inserts in this through hole, and first fixed end of described elastic component is resisted against this latch place.

5. hinge means as claimed in claim 4, it is characterized in that: this abnormity sheet is roughly circular, its outer rim place is arranged with two projections, and all causes one curved portion of this irregularly-shaped hole and one " く " shape are partly formed, and this abnormity sheet is located at a stomidium place of the extension part of support.

6. hinge means as claimed in claim 4 is characterized in that: this friction plate is roughly circular, and its outer rim place is arranged with two projections, and this friction plate is located at another stomidium place of the extension part of support.

7. hinge means as claimed in claim 1 is characterized in that: this base comprises a substrate and two side plates, and two side plates are located at the substrate two ends respectively, and two side plates are located at the substrate homonymy, and described distortion hole is opened on the side plate.

8. hinge means as claimed in claim 2 is characterized in that: the pivot part of this pivot is provided with screw thread, and described fastener is a nut, its be located at the spacing shim outside and with the screw-thread fit of pivot part.

9. hinge means as claimed in claim 2 is characterized in that: this packing ring is the disk that the distortion hole is offered at the center.

10. hinge means as claimed in claim 9 is characterized in that: this spacing shim is roughly ring-type, and its center has a distortion hole, and its periphery is provided with a limiting stopper, and second fixed end of described elastic component is resisted against this limiting stopper place.

11. hinge means as claimed in claim 10 is characterized in that: the distortion hole of this base, packing ring and spacing shim and the pivot part cross section of pivot are roughly " D " shape.

12. hinge means as claimed in claim 2 is characterized in that: this shell fragment is the dish shape sheet of a center drilling, and it has elasticity.

13. hinge means as claimed in claim 4 is characterized in that: this elastic component is a torsion spring, and it has a plurality of column spring coils, and its first fixed end radially extends along spring coil, and second fixed end extends axially along spring coil, and the spring ring diameter of torsion spring is greater than packing ring and shell fragment.