CN201212522Y

CN201212522Y - Pivotal device for limiting open angle

Info

Publication number: CN201212522Y
Application number: CNU2008201072350U
Authority: CN
Inventors: 陈嘉辉; 许添悦; 詹曜聪
Original assignee: Lianhong Technology Co Ltd
Current assignee: Lianhong Technology Co Ltd
Priority date: 2008-04-08
Filing date: 2008-04-08
Publication date: 2009-03-25
Anticipated expiration: 2018-04-08

Abstract

The utility model relates to a joint device for restricting the opening angle. The joint device is characterized in that a stop block is externally arranged outside a shaft hole of a seat body and the shaft of a rotating shaft is provided with a limiting cam with synchronous rotation. The outer edge of the limiting cam forms a sector block which forms interference with the stop block so as to restrict the angle of rotation of the rotating shaft; and the side of the limiting cam forms an arc flange which extends into a trough on the rotating shaft to be combined with the trough. According to the structure, the combining force of the rotating shaft and the limiting cam is increased, the force for combining a D-typed hole of the limiting cam and a D-typed block of the rotating shaft can be shared and further the service life of the limiting cam with a smaller size is prolonged.

Description

Pivot device with restriction opening angle

Technical field

The utility model refers to a kind of pivot device with restriction opening angle especially about the pivot device that a kind of folding-type electronic device uses.

Background technique

Folding-type electronic device, for example notebook computer etc. is mainly constituted with a body and a display screens, connects with pivot device therebetween, to reach folding function.Before the novel patent of TW-M298152 that the claimant announced on September 21st, 2006 " the fork-shape spoon rack in the pivot device and have the pivot device of fork-shape spoon rack ", in the case, promptly disclosed this kind pivot device.

Yet when notebook computer used, display screens had suitable weight, so preferably can be provided with the function of restriction open degree in pivot device, caused the damage of pivot device to prevent normal excessively the unlatching.

Summary of the invention

The utility model purpose is, a kind of pivot device with restriction opening angle is provided, by increasing the combination force of rotating shaft and limit cam, and can share stressed that the D type agllutination of the D type hole of limit cam and rotating shaft closes, and then the working life of the less limit cam of raising volume.

According to above-mentioned purpose, a kind of pivot device with restriction opening angle is arranged in the folding-type electronic device with a display screens and a body; It is characterized in that, comprising:

One pedestal is fixedly connected on above-mentioned body, has an axis hole, and forms a block in this axis hole outside;

One group of elastic shaft sleeve is arranged in this axis hole;

One support is fixedly connected on above-mentioned display screens;

One relatively this axis hole rotate to the rotating shaft of unspecified angle location, an end is fixed in this support end, the other end is formed with an axial region; This axial region stretches in this axis hole and is sheathed with this group elastic shaft sleeve; And this axial region is formed with a D type piece in the block relevant position in this axis hole outside;

One limit cam, has a D type hole of together rotating in order to be incorporated on this axial region D type piece and with this rotating shaft, and this limit cam outer rim is formed with one can interfere limiting this rotating shaft angle of swing with this block, and then limits the sector unit of the above-mentioned relatively body opening angle of above-mentioned display screens;

This rotating shaft is formed with a grooving in this D type piece is other, and this limit cam side is formed with a curved flanges, and this curved flanges stretches into combination in this grooving.

Wherein, each elastic shaft sleeve has a ring-type fit portion that is sleeved on this axial region surface, in ring-type fit portion axially on be formed with and make this fit portion that this axial region that is coated is produced flexible otch together; Being extended with a location piece downward vertically at this fit subordinate edge, in the bottom of this location piece, is that boundary reaches the rake that a left side is formed with the symmetry fork to the right with the intermediate point.

The utility model beneficial effect: by said structure, increase the combination force of rotating shaft and limit cam, and can share stressed that the D type agllutination of the D type hole of limit cam and rotating shaft closes, and then the working life of improving the less limit cam of volume.

Pivot device with restriction opening angle provided by the utility model, resilient sleeve wherein can be as the preceding revealer of case institute design in the prior art.

Below, structure of the present utility model will be described in detail according to the embodiment shown in the drawing and use effect.

Description of drawings

Fig. 1 is an exploded view of the present utility model,

Fig. 2 is a constitutional diagram of the present utility model,

Fig. 3 is a part exploded view of the present utility model,

Fig. 4 is a part constitutional diagram of the present utility model, showing combining of limit cam and rotating shaft,

Fig. 5 and Fig. 6 represent the utility model with the part sectional view with display action figure.

Embodiment

A kind of pivot device with restriction opening angle provided by the utility model is set in the folding-type electronic device with a display screens and a body so that functions of pivoting to be provided.See also Fig. 1 and Fig. 2, the utility model mainly has a pedestal 10, one group of elastic shaft sleeve 20, a support 30, a rotating shaft 40 and limit cam 50.

Pedestal 10 can be a new alloy spare, is fixedly connected on the body of folding-type electronic device, and has offered an axis hole 11 in its end, and forms a block 12 in these axis hole 11 outsides.The interior shape of axis hole 11 cooperates elastic shaft sleeve 20 and offers, so that elastic shaft sleeve 20 is set in it, and can be referring to Fig. 3.

Support 30 is fixedly connected on the display screens that folding electronic is established, and in an end of terminal fixed rotating shaft 40.And the other end of rotating shaft 40 forms an axial region 41, and this axial region 41 stretches in the axis hole 11 of pedestal 10 and by elastic shaft sleeve 20 fits, make rotating shaft 40 relatively axis hole 11 rotate to unspecified angle and locate; And axial region 41 forms a D type piece 42 in block 12 relevant positions in axis hole 11 outsides, the D type piece 42 other groovings 43 that form.

Elastic shaft sleeve 20 has a ring-type fit portion 21 that is sleeved on axial region 41 surfaces, forms one otch 22 in axially going up of ring-type fit portion 21 and makes 21 pairs of axial regions that coated of this fit portion 41 produce elasticity.Extending a location piece 23 downward vertically at fit portion 21 lower edges, in the bottom of this location piece, is that boundary reaches the

rake

231 and 232 that left-handed form becomes the symmetry fork to the right with the intermediate point.

Limit cam 50 has a D type hole 51 with on the D type piece 42 that is incorporated into axial region 41 and together rotate with rotating shaft 40, and its outer rim forms a sector unit 52 and the angle of swing of block 12 interference with restriction rotating shaft 40, and then the opening angle of the relative body of display screens of restriction folding-type electronic device.The side of limit cam 50 forms a curved flanges 53.

Cooperate Fig. 3 and shown in Figure 4, rotating shaft 40 of the present utility model is in the D type piece 42 other groovings 43 that form, combine with the curved flanges 53 of limit cam 50 sides, to increase both combination forces, and the D type hole 51 that can share limit cam 50 combine with D type piece 42 stressed, and then working life of improving the less limit cam 50 of volume.

Fig. 5 and Fig. 6 have illustrated the restriction opening angle action of the utility model limit cam 50 with block 12.Shown in Fig. 5, when sector unit 52 two ends of limit cam 50 did not contact with block 12, rotating shaft 40 can be rotated up and down as shown by arrows.But when rotating shaft 40 rotates to sector unit 52 lower ends when contacting with block 12, shown in Fig. 6 arrow, then rotating shaft 40 will only can upwards be rotated.In like manner, rotating shaft 40 rotates to sector unit 52 upper ends when contacting with block 12, and then rotating shaft 40 will only can rotate.Reach the purpose of the opening angle of the relative body of display screens that limits folding-type electronic device in view of the above.

Claims

1. the pivot device with restriction opening angle is arranged in the folding-type electronic device with a display screens and a body; It is characterized in that, comprising:

One group of elastic shaft sleeve is arranged in this axis hole;

One support is fixedly connected on above-mentioned display screens;

2. according to the described pivot device of claim 1 with restriction opening angle, it is characterized in that, each elastic shaft sleeve has a ring-type fit portion that is sleeved on this axial region surface, in ring-type fit portion axially on be formed with and make this fit portion that this axial region that is coated is produced flexible otch together; Being extended with a location piece downward vertically at this fit subordinate edge, in the bottom of this location piece, is that boundary reaches the rake that a left side is formed with the symmetry fork to the right with the intermediate point.