CN2615422Y

CN2615422Y - Adjustable angle rotary shaft apparatus

Info

Publication number: CN2615422Y
Application number: CN 03261594
Authority: CN
Inventors: 张宗贵; 张�诚
Original assignee: Chuangyu Science & Technology
Current assignee: Chuangyu Science & Technology
Priority date: 2003-05-22
Filing date: 2003-05-22
Publication date: 2004-05-12
Anticipated expiration: 2013-05-22

Abstract

A pivot mechanism capable of regulating angle comprises an axial portion and an elastic ring, the outer diameter circumference surface of the axial portion is provided with a plurality of equal angle distributed grooves, the inner diameter circumference surface of the elastic ring is provided with a plurality of equal angle distributed projecting portions corresponding to the grooves of the axial portion, the elastic ring can combine with an object, the axial portion can combine with another object, and make the axial portion engage with the inner diameter of the elastic ring, when making the axial portion and the elastic ring relatively rotate via the two objects, because of the engagement between the projecting portion and the groove, which is capable of location in specific angle.

Description

Can adjust the turning gear of angle

Technical field

The turning gear that the utility model is related can be applied to equipment or equipment that notebook computer, Collapsible mobile telephone, palm PC (PDA) wait its body and lid to turn down.

Background technique

Traditionally, be arranged on such as the body of notebook computer, Collapsible mobile telephone, palm PC (PDA) and the turning shaft structure between the lid as shown in Figure 1, its rear end at body A is provided with axis hole A1; On the end limit of lid B axostylus axostyle B1 is set in addition, this axostylus axostyle B1 directly is matched with this axis hole A1 and is coupling fully, and lid B and body A can relatively be rotated.

Known turning shaft structure shown in Figure 1, when body A is relative with lid B when rotating to needed angle, be to utilize the frictional force between axostylus axostyle B1 and the axis hole A1 to allow body and lid remain on the positioning states of this angle, based on this reason, easily wearing and tearing and becoming flexible in use for some time, working life is not long, and rotating shaft only supports that by frictional force lid remains on several angle, its retention force quantity not sufficient, locating effect is not good, so improved necessity is in addition arranged.

Summary of the invention

Technical problem to be solved in the utility model is, between the bull stick and axis hole of traditional turning shaft structure, be to utilize the area of the wholecircle side face surface friction drag that is caused that contacts with each other to reach angular positioning, cause locating effect not good, wearing and tearing easily, loosening reduce working life.

First kind of technological scheme of the present utility model is: the axial region of turning shaft structure is set to external diameter surface and possesses a plurality of equal angles grooves distributed, provide inside diameter surface to possess the elastic band of a plurality of teats in addition, this axial region is matched with the internal diameter of this elastic band, and described each teat is sticked in these grooves, when making that axial region is relative with elastic band and rotating, owing to teat moves between groove, engaging realizes angular positioning.

Second kind of technological scheme of the present utility model is: opposite with aforesaid technological scheme, groove is located at the inside diameter surface of elastic band, and teat is located at the external diameter surface of axial region, when axial region is matched with the internal diameter of this elastic band, described each teat is sticked in these grooves, when making that axial region is relative with elastic band and rotating, also can reach the angular positioning effect.

Prior art is to adopt the axial region of wholecircle shape and axis hole to cooperate and rotation relatively, and reaches the angular positioning effect by the frictional resistance that interference fit possessed between axial region and the axis hole.The utility model then is by being located at axial region and the groove of elastic band and cooperating of teat respectively, when making that axial region is relative with elastic band and rotating, utilize teat to obtain the angular positioning effect with engaging of groove, thereby can reduce axial region and taper hole area of contact each other, reach and reduce axial region and axis hole wearing and tearing, prolong the turning shaft structure purpose in working life.

Description of drawings

Fig. 1 is the stereogram of known turning shaft structure.

Fig. 2 is the three-dimensional exploded view of the primary clustering combination relation of the utility model turning gear.

Fig. 3 is assembled in the structure partial section plan of body and lid for the utility model axial region cooperates elastic band.

Fig. 4 can be provided with groove at the inside diameter surface of elastic band for the utility model turning gear, and the axial region external diameter surface then is provided with embodiment's plane view of teat.

Among the figure

1 elastic band, 11 openings

12 bumps, 13 teats

14 grooves

2 axial regions, 21 grooves

22 teats

3 bodies, 31 slots

32 axis holes

4 lids

A body A1 axis hole

B lid B1 axostylus axostyle

Embodiment

Consult Fig. 2 and shown in Figure 3, better embodiment of the present utility model comprises an elastic band 1 and an axial region 2; Wherein, described elastic band 1 is to make circular shape with the material with favorable elasticity (for example spring steel plate or plastic sheet etc.), and the sidewall of this elastic band 1 has an opening 11, makes elastic band 1 possess to have the elasticity that can enlarge or shrink in diametric(al); The bump 12 that is turnover is extended on one side of described elastic band 1 opening 11, and at the inside diameter surface of elastic band 1 a plurality of teats 13 is set.

The outer-diameter ring perimeter surface of described axial region 2 then is provided with a plurality of equal angles grooves distributed 21; Described axial region 2 is matched with this elastic band 1 internal diameter, when making axial region 2 with elastic band 1 relative rotation, teat 13 is moved 21 of each grooves, and allows teat 13 be sticked in the groove 21 and locate.

Fig. 2 and Fig. 3 have shown that simultaneously turning gear of the present utility model for example can be applied in: the embodiment of equipment such as notebook computer, Collapsible mobile telephone, PDA or device; Its mode of execution is the lid 4 relative both sides on one side that axial region 2 are incorporated into these equipment or device.The body 3 of these equipment or device then is provided with axis hole 32, and on this limit slot 31 is set on one side.The internal diameter of described elastic band 1 is to be penetrated by this axial region 2, and make each groove 21 on the axial region 2 be matched with the teat 13 of elastic band 1 inside diameter surface, 12 slots 31 that insert on the body 3 of the bump of elastic band 1, be fixed on body 3 with a end with elastic band 1, simultaneously axial region 2 is penetrated axis hole 32, allow lid 4 and body 3 can utilize axial region 2 relatively to rotate for the center.

When the user stir lid 4 and with body 3 simultaneously in relative rotation, the also rotation in axis hole 32 of this axial region 2, because elastic band 1 is to be fixed on the body 3, so will make each teat 13 move during axial region 2 rotations 21 of each grooves, when teat 13 did not correspond to groove 21, elastic band 1 can be promoted by the direction toward external diameter and expand; When teat 13 during corresponding to groove 21, then elastic band 1 can be shunk to internal diameter direction naturally, and then makes each teat 13 be sticked in groove 21, and with lid 4 location, the angle of its location can be operated according to user's needs.

Another embodiment of the present utility model can be provided with a plurality of equal angles grooves distributed 14 that are at the inside diameter surface of elastic band 1 as shown in Figure 4, and at the external diameter surface of axial region 2 teat 22 that a plurality of equal angles distribute is set; One end of this elastic band 1 is incorporated into body 3 equally, axial region 2 then is incorporated into lid 4, when axial region 2 is matched with the internal diameter of this elastic band 1, described each teat 22 is sticked in those grooves 14, when making axial region 2, also can realize the angular positioning effect with elastic band 1 relative rotation.

The above in order to explain preferred embodiment of the present utility model, is not that the utility model is done any pro forma restriction only, and all relevant impartial modifications of being done according to the utility model claim or change all should be the utility model claim and contain.

Claims

1. the turning gear that can adjust angle is characterized in that including: axial region, and the ring perimeter surface of its external diameter is provided with a plurality of equal angles grooves distributed; Elastic band, the ring perimeter surface of its internal diameter are provided with that a plurality of equal angles distribute and corresponding to the teat of described axial region groove; Described axial region is matched with this elastic band internal diameter, makes when axial region is relative with elastic band to be rotated to locate at special angle.

2. the turning gear that can adjust angle according to claim 1 is characterized in that described elastic band has opening, makes elastic band possess the elasticity of shrinking or enlarging in diametric(al).