CN201696463U

CN201696463U - Concave-convex wheel structure of hub device

Info

Publication number: CN201696463U
Application number: CN2010201099793U
Authority: CN
Inventors: 陈嘉辉; 许添悦; 陈怡文; 钱文庆
Original assignee: Lianhong Technology Co Ltd
Current assignee: Lianhong Technology Co Ltd
Priority date: 2010-02-09
Filing date: 2010-02-09
Publication date: 2011-01-05
Anticipated expiration: 2020-02-09

Abstract

The utility model relates to a concave-convex wheel structure of a hub device, which is arranged on a noncircular formed shaft part of the hub device. The concave wheel is provided with a first concave part and a second concave part, the inclining gradients of the slopes at both sides of the two concave parts are different, and the depths are different; the abutting surface of the convex wheel is provided with a first convex block; the convex wheel is rotated to make the first convex block automatically fall into the first concave part when the first convex block approaches to the first concave part so as to provide an automatic closing function; and the convex wheel is rotated to make the first convex block slowly fall into the second concave part when the first convex block approaches to the second concave part so as to provide the function of slowing falling when opening to 180 degrees.

Description

A kind of concavo-convex wheel construction of pivot device

Technical field

The utility model provides a kind of concavo-convex wheel construction of pivot device, utilizes special recesses and projection design on its approximal surface, makes pivot device possess the auto-closing function and is opened into 180 and spend the function that can slowly fall.

Background technique

Among folding-type electronic device, have a display unit and a body, for example notebook computer has a display screen and a keypad portion.For display unit and body closure or openness relatively, pivot device must be set.

Employed single shaft rotation hub device in known general notebook computer, can be provided with concavo-convex wheel construction, to reach loam cake auto-closing function, for example the pivot device of the tool locating function of the novel patent announcement M254878 of TaiWan, China and claimant's the novel patent announcement M295419's of TaiWan, China has a case before the pivot device that closes entire function automatically etc.

Yet, in the application of dull and stereotyped (tablet or i-slate) computer, will make the display unit of notebook computer be rotated the chances that are opened into 180 degree and increase.Therefore, how providing a kind of concavo-convex wheel construction of innovation, make pivot device possess the auto-closing function and be opened into 180 degree slowly to fall the display unit of function with protection folding electronic product, is for the utility model category to be discussed mainly.

Summary of the invention

Edge this, the purpose of this utility model is to provide a kind of concavo-convex wheel construction of pivot device, makes pivot device possess the auto-closing function and is opened into the 180 degree functions that can slowly fall.

For achieving the above object, the utility model provides a kind of concavo-convex wheel construction of pivot device, is installed on the non-circular axial region in the pivot device of a folding-type electronic device; It comprises:

One recessed the wheel has a circular hole that does not together rotate for this non-circular axial region passes, and is symmetrical in home position is provided with one first recess and one second recess near this circular hole; The slope of these first recess both sides for tilting, and these second recess both sides are than more precipitous slope, the first recess both sides; And this first recess depths is dark than second recess depths; And

One cam has a non-circular hole that together rotates for the non-circular axial region of this pivot device passes; Thereby thereby camming surface can fall into automatically during near this first recess in this first recess the auto-closing function to be provided and can slowly to fall into this second recess in the cam rotation during near this second recess in cam rotation and to be opened into first projection that 180 degree can slowly fall function to provide for being formed with one on this recessed approximal surface of taking turns, and these first projection both sides are slope.

Wherein, relative this first bump position has a salient point on this cam abutment surfaces, and this bump height is identical with this first projection; This recessed wheel is provided with the arcuate furrow that can insert into the inner when this salient point enters in second recess together in second recess.

Wherein, this pivot device has a base, a support, an elastic element group, a fixed plate and a fixture at least except non-circular axial region; This support is incorporated into this non-circular axial region one end and together rotates; This non-circular axial region pass this base a vertical bolster, this recessedly takes turns, this cam, this elastic element group and this fixed plate, thereby and make this this recessed wheel of elastic element group compressing with this fixture locking towards this cam at another end.

Wherein, this recessed wheel has a cramp, and this cramp buckles in the button hole on the vertical bolster of this base.

By said structure, the concavo-convex wheel construction of pivot device of the present utility model utilizes special recesses and projection design on its approximal surface, the auto-closing function can be provided and be opened into the function that 180 degree can slowly fall.And, can equilibrium cam recessed relatively in the plane average force when taking turns rotation, and then reduce wearing and tearing, improve the life-span.

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

Description of drawings

On behalf of the concavo-convex wheel construction of the utility model, Fig. 1 be applied to exploded view in the pivot device,

The constitutional diagram of Fig. 2 representative graph 1,

The cross section view of Fig. 3 representative graph 2,

Fig. 4 represents concavo-convex wheel construction exploded view of the present utility model,

On behalf of the concavo-convex wheel construction of the utility model, Fig. 5 be applied to the floor map of pivot device, and wherein the relative body of the display unit of folding electronic product is opened,

In Fig. 5 A representative graph 5 along the cross section view of A A,

On behalf of the concavo-convex wheel construction of the utility model, Fig. 6 be applied to the floor map of pivot device, the relative body closure of the display unit of folding electronic product wherein,

In Fig. 6 A representative graph 6 along the cross section view of A A,

On behalf of the concavo-convex wheel construction of the utility model, Fig. 7 be applied to the floor map of pivot device, and wherein the relative body of the display unit of folding electronic product is opened into 180 degree,

In Fig. 7 A representative graph 7 along the cross section view of A A.

Embodiment

See also Fig. 1 to Fig. 3, the utility model provides a kind of concavo-convex wheel construction 10 of pivot device, it is installed on a folding-type electronic device (referring to Fig. 5, folding-type electronic device has the body 92 of a display unit that rotarily opens 91 and horizontal positioned) on the non-circular axial region 21 in the pivot device 2, make pivot device 2 have the auto-closing function and be opened into the function that 180 degree can slowly fall.This concavo-convex wheel construction 10 is mainly constituted with recessed 11 and one cam 12 of taking turns.

In pivot device 2, except non-circular axial region 21, have a base 22, a support 23, an elastic element group 24, a fixed plate 25 and a fixture 26 at least.Support 23 is incorporated into non-circular axial region 21 1 ends and can together rotates.Non-circular axial region 21 pass base 22 a vertical bolster 221, recessedly take turns 11, cam 12, elastic element group 24 and fixed plate 25, and at another end with fixture 26 locking, fixture 26 is a nut for example, makes that elastic element group 24 compressing is recessed takes turns 11 towards cam 12.

Referring to shown in Figure 4, the recessed of the concavo-convex wheel construction 10 of the utility model takes turns 11, has a cramp 111, and this cramp 111 buckles in the button hole 222 on the base 22 vertical bolsters 221.In addition, recessedly take turns 11 and have a circular hole 112, pass and together do not rotate, and near circular hole 112, be symmetrical in home position and be provided with one first recess 113 and one second recess 114 for non-circular axial region 21.First recess, 113 both sides are the slope 113a that tilts, and second recess, 114 both sides are than the more precipitous slope 114a in first recess, 113 both sides.First recess, 113 degree of depth t1 are dark than second recess, 114 degree of depth t2, shown in Fig. 5 A.The recessed wheel in 11 second recess 114 is provided with arcuate furrow 115 one.

Cam 12 has a non-circular hole 121, together rotates for pivot device 2 non-circular axial regions 21 pass.Cam 12 regards to recessed the wheel on 11 the approximal surface 122 and is formed with one first projection 123, these first projection, 123 both sides are slope 123a, make this slope 123a when contacting with recessed slope 113a that takes turns 11 first recess 113 or

second recess

114 or 114a, because the pressure that provides of elastic element group 24 and slippage relatively automatically falls in first recess 113 or second recess 114 first projection 123 automatically.In addition, relative first projection 123 positions have a salient point 124 on cam 12 approximal surfaces 122, this salient point 124 height are identical with first projection 123, also can be referring to shown in Fig. 5 A, and salient point 124 is in the plane average force when taking turns 11 rotations for equilibrium cam 12 is recessed relatively.

Concavo-convex wheel construction 10 of the present utility model is set on the non-circular axial region 21 of pivot device 2, and pivot device 2 can make display unit 91 body 92 unlatchings relatively of folding-type electronic device, as shown in Figure 5, display unit 91 is opened into and body 92 vertical positions, at this moment, display unit 91 can rotate to operating position as shown in Figure 6, or rotates to the 180 degree positions that are opened into as shown in Figure 7.Referring to Fig. 5 A, this moment is recessed take turns 11 and cam 12 between distance maximum, to 24 compressings of elastic element group and produce maximum torsion, making can be in arbitrary opening angle location, just display unit 91 is opened into unspecified angle, all can support by the torsion that pivot device 2 provides and can not rotate.

Owing in pivot device 2, be provided with concavo-convex wheel construction 10 of the present utility model, be rotated at cam 12, when making first projection 123 near first recess 113, first projection 123 can fall in first recess 113 automatically, form shown in Figure 6, so that the auto-closing function to be provided.In addition, referring to Fig. 6 A, in the time of in first projection 123 falls into first recess 113,124 of salient points fall in the arcuate furrow 115 of second recess 114, can not cause unsettledly, make closed stablely, and must impose bigger strength to display unit 91 could open.

When cam 12 is rotated, when making first projection 123 near second recess 114, first projection 123 can slowly fall into second recess 114, forms shown in Figure 7.Since recessed take turns 11 and cam 12 between still have a bit ofly apart from t 3 (shown in Fig. 7 A), can and produce some torsion to elastic element group 24 compressing, be opened into the function that 180 degree can slowly fall to provide.

To sum up institute is old; the concavo-convex wheel construction of innovation provided by the utility model; make pivot device have the auto-closing function and be opened into 180 and spend the function that can slowly fall; display unit with protection folding electronic product; be the creation that meets patent novelty and progressive important document fully, the whence proposes patent application in accordance with the law.

Claims

1. the concavo-convex wheel construction of a pivot device is installed on the non-circular axial region in the pivot device of a folding-type electronic device; It is characterized in that comprising:

2. according to the concavo-convex wheel construction of the described pivot device of claim 1, it is characterized in that relative this first bump position has a salient point on this cam abutment surfaces, this bump height is identical with this first projection; This recessed wheel is provided with the arcuate furrow that can insert into the inner when this salient point enters in second recess together in second recess.

3. according to the concavo-convex wheel construction of the described pivot device of claim 1, it is characterized in that this pivot device has a base, a support, an elastic element group, a fixed plate and a fixture at least except non-circular axial region; This support is incorporated into this non-circular axial region one end and together rotates; This non-circular axial region pass this base a vertical bolster, this recessedly takes turns, this cam, this elastic element group and this fixed plate, thereby and make this this recessed wheel of elastic element group compressing with this fixture locking towards this cam at another end.

4. according to the concavo-convex wheel construction of the described pivot device of claim 3, it is characterized in that this recessed wheel has a cramp, this cramp buckles in the button hole on the vertical bolster of this base.