CN200978881Y

CN200978881Y - Hub for opening with little force and closing with much force

Info

Publication number: CN200978881Y
Application number: CN 200620164604
Authority: CN
Inventors: 林树木
Original assignee: Shin Zu Shing Co Ltd
Current assignee: Shin Zu Shing Co Ltd
Priority date: 2006-12-11
Filing date: 2006-12-11
Publication date: 2007-11-21
Anticipated expiration: 2016-12-11

Abstract

The utility model discloses hub to open light and close heavy, which is equipped between an upper cover of a cover opening device and a chassis, comprising a relatively rotary bumper, wherein one side of the bumper is equipped with at least one arc dent, one end of the dent is equipped with a bevel with the end portion of the dent thicker and thicker, a steering plate is equipped with a convex block relatively sliding into the dent on the bumper, the matching between the convex block and the bevel makes a bigger friction force when closing the upper cover restively, and the upper cover has a smaller friction force when relatively opening the chassis to obtain the purpose of open light and close heavy.

Description

The pivot device of easy opening and heavy closing

Technical field

The utility model is a kind of pivot device of easy opening and heavy closing, refers to especially between a kind of loam cake and base of being located at lid-lifting device, so that the pivot device that loam cake and base can open and close relatively.

Background technique

Pivot device generally is installed in lid-lifting device (as notebook computer, translating machine, mobile phone or the like) between the loam cake and base, make the loam cake of lid-lifting device be able to relative base keying, generally when loam cake is closed with respect to base, must the slow down speed of loam cake closure of user, to avoid loam cake and base to produce bump because of closing speed is too fast, and generally when loam cake is opened with respect to base, the user must accelerate to open loam cake, can use this lid-lifting device with the unlatching of finishing loam cake as quickly as possible, yet, with regard to the frictional force that pivot device provided of prior art, no matter identical frictional force when opening or close with respect to base, loam cake all is provided, so it is the user must apply extra strength and comes control rate when closure or openness, like this then cause user's inconvenience.

Novel content

Because the shortcoming of aforesaid prior art, the utility model is improved the pivot device of prior art, so that loam cake is when closed with respect to base, pivot device provides relatively large frictional force, and when loam cake is opened with respect to base, pivot device provides to less frictional force, and then the user need not apply extra strength, and the difference of the frictional force that can be provided by pivot device itself is controlled the closed or speed when opening of loam cake.

For achieving the above object, the technological means that the utility model adopted is the pivot device of a kind of easy opening and heavy closing of design, comprising:

One pivot;

One fixing bolster, it is sheathed and be fixed on the pivot;

One rotation bolster, it has a buffering spacer and is sheathed on the pivot, and buffering spacer one side indent forms at least one arc groove, and a wherein end of groove forms to the cumulative inclined-plane of groove ends thickness;

Consistent mobile gasket, it is sheathed and be fixed on the pivot, activates the buffering spacer of pad adjacent to the rotation bolster, and activating pad has at least one projection with respect to buffering spacer one side elongation moulding, and the relative slippage of projection is in the groove of buffering spacer;

One shell fragment group, it is sheathed on the pivot;

At least one friction pads, it is sheathed on the pivot;

One fixed block, it is sheathed and be fixed in the pivot end.

Pivot device of the present utility model is located between the loam cake and base of lid-lifting device, and rotation bolster and loam cake interfix, and fixedly bolster and base interfix, and when loam cake during with respect to the base rotary opening and closing, the buffering spacer that rotates bolster is with respect to the rotation of actuating pad.

Advantage of the present utility model is, when loam cake is closed with respect to base, the projection that activates pad is relatively to the gradually thick place slippage on the inclined-plane of buffering spacer, then increase frictional force gradually, so the time slow down the speed of loam cake with respect to the base closure, to avoid loam cake and base to produce bump, otherwise then when the loam cake of lid-lifting device is opened with respect to base, activate of the inclined-plane gradually thin place slippage of the projection of pad with respect to buffering spacer, the power of then reducing friction gradually decrescence, so the time can quicken the speed that loam cake is opened with respect to base, open and use to quicken loam cake.

Description of drawings

Fig. 1 is a stereo appearance figure of the present utility model

Fig. 2 is an element exploded view of the present utility model

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

Fig. 4 is another visual angle exploded view of subelement of the present utility model

The primary component symbol description

10 pivots, 11 screw sections

12 bizets 20 are bolster fixedly

30 rotation bolsters 31 are lamellar body fixedly

32 buffering spacers, 321 center holes

322 grooves, 323 inclined-planes

40 activate pad 41 perforation

42 projections, 50 shell fragment groups

60 friction padss, 70 fixed blocks

Mode of execution

See also Figure 1 and Figure 2, the utility model includes a pivot 10, fixedly bolster 20, a rotation bolster 30, consistent mobile gasket 40, a shell fragment group 50, a plurality of friction pads 60 and a fixed block 70.

Aforesaid pivot 10 is that a section is the non-circular body of rod, on the pivot 10 end ring around forming screw section 11, on the pivot 10 near the other end place radially elongation moulding one bizet 12 is arranged.

Aforesaid fixedly bolster 20 is sheathed and be fixed in pivot 10, and fixedly bolster 20 is fixed in an end that is bordering on bizet 12 on the pivot 10, and fixedly bolster 20 reclines mutually with bizet 12.

See also shown in Figure 2, aforesaid rotation bolster 30 is sheathed on the pivot 10, rotation bolster 30 includes fixedly a lamellar body 31 and a buffering spacer 32, fixedly lamellar body 31 is connected with buffering spacer 32, buffering spacer 32 is provided with a center hole 321, and mat center hole 321 is sheathed on the pivot 10, please cooperate consult shown in Figure 3, buffering spacer 32 1 sides form two relative arc grooves 322 along center hole 321 periphery indents, and an end of each groove 322 forms one towards the cumulative inclined-plane 323 of groove 322 ora terminalis extension thickness.

See also Fig. 2 and shown in Figure 3, aforesaid actuating pad 40 is sheathed and be fixed on the pivot 10, activating pad 40 central authorities runs through and forms a non-circular perforation 41, activating pad 40 mats bores a hole 41 sheathed and be fixed on the pivot 10, activate pad 40 adjacent to buffering spacer 32, activating pad 40 has two relative projections 42 with respect to buffering spacer 32 1 side elongation mouldings, and the projection 42 relative slippages that activate pad 40 are in the groove 322 of buffering spacer 32.

Aforesaid shell fragment group 50 and friction pads 60 are sheathed on the pivot 10, and aforesaid fixed block 70 is sheathed and be fixed in pivot 10 ends, and fixed block 70 can be a nut to screw togather on the screw section 11 of being fixed in pivot 10.

Pivot device of the present utility model is located between the loam cake and base of lid-lifting device, rotation bolster 30 interfixes with loam cake, fixedly bolster 20 interfixes with base, and when loam cake during with respect to the base rotary opening and closing, the buffering spacer 32 of rotation bolster 30 rotates with respect to activating pad 40.

When buffering spacer 32 rotates with respect to actuating pad 40, the projection 42 that activates pad 40 is with respect to slippage in the groove 322 of buffering spacer 32, when the loam cake of lid-lifting device is about to closure with respect to base, the projection 42 that activates pad 40 is relatively to the gradually thick place slippage on the inclined-plane 323 of buffering spacer 32, then increase the packing degree that activates pad 40 and buffering spacer 32 gradually, make frictional force cumulative, so the time slow down the speed of loam cake with respect to the base closure.

When the loam cake of lid-lifting device is opened with respect to base, activate of the inclined-plane 323 gradually thin place slippage of the projection 42 of pad 40 with respect to buffering spacer 32, then reduce the packing degree that activates pad 40 and buffering spacer 32 gradually, make frictional force decrescence, so the time can quicken the speed that loam cake is opened with respect to base.

Claims

1. the pivot device of an easy opening and heavy closing is characterized in that comprising:

One pivot;

One fixing bolster, it is sheathed and be fixed on the pivot;

One shell fragment group, it is sheathed on the pivot;

At least one friction pads, it is sheathed on the pivot;

One fixed block, it is sheathed and be fixed in the pivot end.

2. the pivot device of easy opening and heavy closing according to claim 1 is characterized in that buffering spacer has two relative arc grooves, activates pad and has two relative projections.

3. the pivot device of easy opening and heavy closing according to claim 1 and 2 is characterized in that running through on the buffering spacer center hole that forms a circle, and the center hole of buffering spacer is sheathed on the pivot.

4. the pivot device of easy opening and heavy closing according to claim 3 is characterized in that pivot is that a section is the non-circular body of rod, activates pad central authorities and runs through and form a non-circular perforation, and it is sheathed and be fastened on the pivot to activate the perforation of pad.

5. the pivot device of easy opening and heavy closing according to claim 4 is characterized in that the pivot end-rings around forming a screw section, and fixed block is that a nut screws togather on the screw section of being fixed in pivot.

6. the pivot device of easy opening and heavy closing according to claim 5 is characterized in that on the pivot that radially elongation moulding has a bizet, and bizet reclines mutually with fixing bolster.