CN2672236Y - Hinge structure - Google Patents

Abstract

A hinge structure, used to realize the opening and closing rotation between two bodies of a foldable electronic device, which includes first and second fixing parts respectively fixed on the two bodies in a non-rotating state, one of which is accommodated in the first fixing The elastic element in the part, a group of movable parts that can only move axially in the first fixed part, a positioning part fixed on the second fixed part, a group of fixed parts in the movable part and Needle rollers between the positioning parts and a shaft passing through the elements. The movable part has at least one receiving groove, and the positioning part is provided with at least two positioning grooves with a certain angle. Cooperate and switch to realize any angle stagnation and specific angle positioning in a certain angle area during the rotation process.

Description

hinge structure

【Technical field】

The utility model relates to a hinge structure, in particular to a hinge structure with simple and compact structure, wear resistance, which can realize stagnation and specific angle positioning during the rotation process of folding electronic equipment.

【technical background】

The previous opening and closing structure of foldable electronic equipment, such as Japanese Invention Publication No. 212052 in 1989, discloses a structure that uses many components scattered between the mobile phone base and the cover to realize the opening and closing of the cover relative to the base. Action, the installation positions of the components of the structure are scattered, which not only causes inconvenience to assembly and installation, but also increases the cost.

At present, some operators have proposed to realize the opening and closing action of folding electronic equipment by using a hinge structure in which the protrusions and grooves slide and fit under the action of elastic force, such as the scheme disclosed in Japanese Invention Patent Publication No. A hub and a bracket are respectively installed on the seat and the cover, and the hub is provided with a concave portion with a slope, and the bracket is provided with a convex portion with a slope that can cooperate with the concave portion under the action of a spring force. The opening and closing of the cover is completed through the cooperative switching of the concave parts and the convex parts. As another example, Japanese Invention Patent Publication No. 2000 No. 337008 discloses a structure that uses arc-shaped concave-convex fit switching to realize the switching action of the electronic device cover relative to the base.

In the above solution, although the components are connected by a shaft, the hinge structure and its installation integration are improved, but on the other hand, this type of hinge structure is mainly through the protrusions and recesses respectively provided on the two opposite elements. The sliding fit between the cover and the base can achieve stagnation and positioning during the opening process. When the number of opening and closing actions increases, it will inevitably cause wear on the convex and concave parts, which will affect the close fit between the two parts, so that the opening stagnation, poor positioning effect, or even failure, but in this type of structure, due to the single sliding fit relationship, the wear points on the convex and concave parts are always fixed parts during each action process, which will inevitably make the components relative to each other. The wear resistance is poor, which virtually shortens the service life of these hinge structures.

Therefore, it is necessary to improve the existing hinge structure to eliminate the above-mentioned shortcomings.

【Content of invention】

The technical problem to be solved by the utility model is to provide a simple, compact, wear-resistant hinge structure that can realize stagnation and specific angle positioning during the rotation process between the two bodies of the folding electronic device.

The technical problem to be solved by the utility model is achieved through the following technical scheme: the hinge structure of the utility model is installed on the first body and the second body of the foldable electronic equipment (such as a game machine, a mobile phone, etc.) to realize the The opening and closing rotation between the two bodies includes a first fixing piece and a second fixing piece respectively fixed on the first and second bodies in a non-rotating state, and an elastic spring accommodated in the first fixing piece. Components, a movable part arranged on the lower part of the first fixed part in a non-rotating state and capable of moving axially, a positioning part fixed on the second fixed part, a set of fixed parts arranged on the movable part and the The needle rollers between the positioning parts and a shaft passing through these elements are riveted with the aid of a washer after passing through the above elements, thus forming a compact hinge structure combination.

In addition, the positioning member is provided with at least two positioning grooves arranged at a certain angle, and the movable member is provided with a receiving groove at a position corresponding to at least one of the positioning grooves. When the positioning groove is aligned with the receiving groove, the Needle rollers can be accommodated therein.

When in use, the second body is rotated relative to the first body, thereby driving the first fixing piece and the positioning piece arranged on it to rotate around the shaft, and the positioning piece is still in a relatively detented state. Therefore, the positioning piece on the positioning piece The locating groove of the movable part deflects relative to the receiving groove on the movable part, thereby forcing the needle roller to roll out of the locating groove of the locating part, and the movable part moves axially under the action of elastic force. When the surface of the positioning member rolls, stagnation in the rotation process can be formed, and when the needle roller rolls into another positioning groove, stable positioning at the specific angle is realized.

The hinge structure of the utility model utilizes the elasticity of the elastic element and the rolling friction force between the needle roller and the positioning piece to realize the stagnation of the opening between the two bodies of the electronic equipment, and then through the setting of the angle and quantity of the positioning slots on the positioning piece, a specific angle can be realized. stable positioning. In addition, due to the rolling design of the needle roller, compared with the application of the slider in the prior art, the area of the surface that can be used as the active surface during the rotation of the two bodies of the electronic device is increased, thereby improving the relative wear resistance and increasing the service life. life.

【Description of drawings】

Fig. 1 is a three-dimensional exploded view of the hinge structure of the present invention.

FIG. 2 is a three-dimensional assembled view of FIG. 1 .

Fig. 3 is a three-dimensional exploded view of another angle of the hinge structure of the present invention.

FIG. 4 is a three-dimensional assembled view of FIG. 3 .

【Detailed ways】

Please refer to Fig. 1 to Fig. 4, the hinge structure of the present invention is installed on the first body (not shown) and the second body (not shown) of the foldable electronic equipment (such as game machine, mobile phone, etc.), in order to To achieve the opening and closing rotation between the two bodies, it includes a first fixing part 20 and a second fixing part 70 respectively installed on the first and second bodies in a non-rotating state, and a second fixing part 70 accommodated in the first The elastic element 30 in the fixed part 20 is a movable part 50 which is assembled at the bottom of the first fixed part 20 in a non-rotating state and can move axially under the elastic force of the elastic element 30, and is connected with the movable part 50 is matched with the stopper 40 arranged on the movable part 50, a positioning part 60 fixed on the second fixed part 70 and opposite to the installation position of the movable part 50 and a penetrating part through these elements. The shaft 10 and a needle roller 90 disposed between the movable part 50 and the positioning part 60 .

The first fixing part 20 is slightly cylindrical, and one end surface is provided with a shaft hole 23 for the shaft rod 10 to pass through, and the other end is protrudingly provided with two opposite tenon wings 22, and the outer wall of the first fixing part 20 is properly A pair of slots 21 extending to the end of the mortise wing 22 are arranged parallel to the axis at the position to combine with the first body.

In a preferred embodiment of the present invention, the elastic element 30 is a helical spring body.

The movable member 50 includes a slightly annular base portion 52, and two side protrusions 51 extending radially outward from the opposite position of the base portion 52 and forming overlaps with the tenon wings 22 of the first fixing member 20, wherein A radial arc-shaped receiving groove 511 is formed on one side of the protrusion 51 , and a balance element 512 is formed on the other side of the protrusion 51 . In this embodiment, the balance element 512 is a supporting surface slightly higher than the surface of the base 52 .

The shape of the stopper 40 matches the shape of the movable member 50 , and has a roughly ring-shaped body 41 and a pair of blocking pieces 42 perpendicularly extended and bent from the body 41 .

The positioning member 60 also has an annular base portion 61, the base portion 61 extends radially outward relative to the position to form two extension portions 62, and each of the extension portions 62 is provided with a receiving groove 511 on the movable member 50. The radial arc-shaped positioning grooves 621, 622 are arranged at a certain angle, which is 155 degrees in this embodiment. In addition, in this embodiment, the radians of the positioning grooves 621 , 622 are slightly smaller than the radians of the receiving groove 511 , so as to facilitate the rolling switch of the needle roller 90 between the positioning grooves 621 , 622 .

The needle roller 90 is roughly cylindrical, and its diameter matches the radians of the receiving groove 511 on the movable element 50 and the positioning grooves 621 , 622 on the positioning element 60 .

The center of the second fixing member 70 is provided with a through hole (not labeled), and one end of the second fixing member 70 is provided with a plurality of elastic barbs 72 on the outside, and the other end surface is further away from the peripheral edge of the position of the extension part 62 of the positioning member 60. Two fixing pieces 71 extend upwards.

The shaft 10 includes a top 11 and a stepped shaft portion 12 further extending from the top 11 .

When assembling, the stepped shaft part 12 of the shaft 10 is passed through the shaft hole 23 of the first fixing part 20, and the elastic element 30, the stopper 40, the movable part 50 and the positioning part 60 are sequentially set on the step On the shaft portion 12 , after the small-diameter portion of the front end of the stepped shaft portion 12 passes through the through hole of the second fixing member 70 , it is riveted by an annular washer 80 to assist. At this time, the side protrusion 51 of the movable part 50 overlaps with the tenon wing 22 of the first fixing part 20, the receiving groove 511 of the movable part 50 is aligned with the positioning groove 622 of the positioning part 60, and the The needle roller 90 is accommodated in the space formed by the receiving groove 511 and the positioning groove 622, and the stop piece 42 of the stopper 40 is set at the end of the side protrusion 51 of the movable member 50 to stop the needle roller. 90 slides out radially, the supporting surface of the balance element 512 of the movable part 50 is just supported on the surface of the extension part 62 on the other side of the positioning groove 621 of the positioning part 60, so as to eliminate the possibility of being caused by the needle roller 90 The contact between the moving part 50 and the positioning part 60 is unbalanced, thereby forming the hinge structure combination in the initial installation state.

During installation, the hinge structure combination is set on the first body and the second body of the electronic device in a non-rotating state through the slot 21 of the first fixing part 20 and the elastic barb 72 of the second fixing part 70 .

When in use, rotate the second body to drive the second fixing piece 70 installed on the second body in a non-rotating state to rotate, and pass between the fixing piece 71 of the second fixing piece 70 and the extension 62 of the positioning piece 60. The blocking effect of the positioning member 60 also rotates together, and the movable member 50 is installed in the first fixed member 20 in a non-rotating state. Therefore, during the rotation process, the positioning member 60 rotates around the shaft 10, and its The relative deflection occurs between the positioning groove 622 originally aligned with the receiving groove 511 on the movable member 50 and the receiving groove 511, thereby forcing the needle roller 90 to roll and climb along the arc-shaped positioning groove 622 of the positioning member 60, thereby making the The elastic element 30 is compressed, and the movable element 50 moves axially. When the needle roller 90 rolls out from the positioning groove 622 of the positioning member 60 to the end surface of the positioning member 60, the rolling friction between the needle roller 90 and the end surface of the positioning member 60 or the friction form of rolling friction and sliding friction And the elastic effect of the elastic element 30, can realize the stagnation of any angle within the further opening angle range of the first body relative to the second body; When it is in the positioning groove 621, a stable positioning position of the first body relative to the second body is realized.

In addition, the application of the stopper 40 in the present invention can further prevent the needle roller 90 from slipping out in the radial direction. The radian is properly matched with the size of the needle roller 90, or a stop structure integrated with the movable part 50 is further extended on the end face of the movable part 50, and the utility model can also be realized without adding the stop part 40 purpose of creation.

The hinge structure of the utility model is mainly through the stagnation and positioning of the receiving groove 511 on the needle roller 90 and the movable part 50, and the opening and closing process of the electronic equipment. control, and the groove design on the movable part and the positioning part can be interchanged. At the same time, the automatic wear compensation ability of the creative hinge structure can be improved by increasing the number of needle rollers in the structure and the corresponding accommodation space, and the increased needle rollers can replace the supporting surface in the above embodiment as a balance in relative rotation element.

Claims (10)

1. hinge arrangement, be installed on the first housing and the second housing of folding-type electronic device, rotate in order to realize the switching between this two body, it comprises that one is installed in first fixture on this first housing with the spline state, one is contained in the flexible member in this first fixture, one is installed on second fixture on this second housing with the spline state, respectively with the spline state group be located at this first, movable piece in second fixture and positioning piece reach always puts on the axostylus axostyle of stating element, wherein this movable piece system places this flexible member lower end and can move axially under the resilient force of this flexible member, it is characterized in that: the apparent surface of this movable piece and keeper goes up the either party and is provided with an at least one accepting groove and a balanced structure, the opposing party is provided with at least two angled locating slots, and this hinge arrangement also comprises at least one this movable piece that places, between keeper and rollably be housed in needle roller in this at least one accepting groove.

2. hinge arrangement as claimed in claim 1, it is characterized in that: this first fixture lateral wall appropriate location is provided with at least one draw-in groove that parallels to the axis and engage with this first housing, and this second fixture, one end face outwards extends some resilient barb that can combine with this second housing.

3. hinge arrangement as claimed in claim 1, it is characterized in that: this first fixture slightly becomes cylindric, one end is provided with an axis hole, the other end convexes with the two relative tenon wings, this movable piece comprises a base portion that slightly circularizes, two from this first base portion relative position outward radial extend to form and can with the side protuberance of the tenon wing of this first fixture overlap joint, wherein an accepting groove camber radially is arranged at wherein on the side protuberance.

4. hinge arrangement as claimed in claim 3 is characterized in that: the balanced structure on this movable piece is the supporting surface of being located on this keeper opposite side protuberance a little more than this first base surface.

5. hinge arrangement as claimed in claim 3 is characterized in that: also be provided with an accepting groove on the opposite side protuberance of this movable piece, it combines the balanced structure that can be used as this movable piece with another needle roller.

6. hinge arrangement as claimed in claim 3, it is characterized in that: this hinge arrangement comprises that also one places the stop part on this movable piece, its shape matches with this movable piece shape, has a body that slightly circularizes and a pair ofly extends bending downwards when being located at the catch of this movable piece side protuberance end face from this body relative position.

7. hinge arrangement as claimed in claim 3, it is characterized in that: this keeper also has an annular base, this base portion relative position outward radial extends to form two extensions, and this locating slot camber radially is arranged on these extensions, and its radian is slightly less than the radian of this movable piece accepting groove.

8. hinge arrangement as claimed in claim 7 is characterized in that: this needle roller slightly becomes cylindric, and its diameter matches with the accepting groove of this movable piece and the locating slot radian of keeper.

9. hinge arrangement as claimed in claim 7 is characterized in that: these second fixture central authorities are provided with a through hole, and an end face differs from this place, keeper extension position periphery and further upwards extended two stators.

10. hinge arrangement as claimed in claim 7 is characterized in that: this axostylus axostyle comprises a top and a ladder axial region that further extends to form from this top.

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