CN201368117Y - Light-on and heavy-off pivot device - Google Patents

Abstract

The utility model relates to a pivot device with light opening and heavy closing, which comprises a pivot device structure consisting of a rotating shaft, a first linkage sheet, a bracket, a fixed cam, a rotating cam, an elastic element and a fixing piece; the rotating shaft is provided with a semi-ring block, the first linkage piece and the bracket of the rotating shaft are mutually abutted, and the first linkage piece is convexly provided with a stop block corresponding to the semi-ring block; when the rotating shaft rotates forwards or reversely, the semi-ring block can rotate for the first section, the first connecting sheet rotates for the second section, and the friction area in the rotating process can be changed from small to large so as to change the applied force when the cover is opened or closed, so that the hinge device has the effects of opening lightly and closing heavily.

Description

switch light switch

technical field

The utility model relates to a hinge device suitable for electronic products, in particular to a structure of the hinge device with the functions of turning light on and off heavy.

Background technique

The hinge device commonly used in electronic products is used to connect the screen and the body, so that the screen can rotate relative to the body, so as to achieve the purpose of opening and using or closing the cover for storage, and according to different steering methods and functions, And there are various types of hubs.

Take the hinge device that utilizes the cam and the elastic element to generate torsion as an example, please refer to Figure 1, the hinge device 10 shown in the figure is provided with a limiting piece 12, a bracket 13, and a fixed cam on a rotating shaft 11 in sequence. 14. Rotating cam 15 and an elastic element 16, the end of the rotating shaft 11 and the hinge device 10 structure formed by locking with the fixing piece 17, and the rotating shaft 11 and the rotating cam 15 complete the rotation connection, and the fixed cam 14 and the bracket 13 complete Fixed connection, the rotating shaft 11 is provided with a fixed part 111 to be installed on the side edge of the electronic product screen, and the bracket 13 is arranged on the side edge of the electronic product body to generate an appropriate torque and an automatic locking effect, not only to keep the screen open The angle behind the cover has a good feeling of use.

However, the torsion force produced by this type of hinge 10 is the same no matter when the screen is opened or closed, so the user must apply additional force when opening or closing the cover to control the speed of the switch cover. There is no clear feel when the cover is opened, which will cause inconvenience to the user; moreover, when the screen is opened relative to the body, the user hopes to have a lighter feel so that the cover can be opened as soon as possible; on the contrary, when the screen is opened relative to the body When the main body is closed, it is desirable to have a heavier hand feeling, so that the user can slow down the speed of closing the cover, and avoid damage to the screen and the main body due to the impact of the fast closing speed.

Therefore, the utility model specially designs a hinge device, which can gradually increase the force exerted by the user according to the rotation angle when the cover is opened or closed, so as to realize the goal of opening light and closing the heavy hinge device pursued by the industry, and relying on the relative closeness The cam has the effect of automatic locking.

Contents of the invention

The main purpose of the utility model is to provide a light-opening and heavy-closing hinge, which can gradually increase the force applied by the user according to the rotation angle when opening or closing the cover.

For realizing above-mentioned object, the technical scheme that the utility model adopts is:

A light switch and heavy switch hinge, characterized in that it at least includes:

A rotating shaft, a half ring block is arranged at the mid-section;

A first connecting piece movable on the rotating shaft has a perforation in the center. The first connecting piece and the half-ring block are in close contact with each other. The first stop block, the first stop block is located on the rotation path of the half-ring block;

A bracket movable through the rotating shaft, with a perforation on one side, and one side of the bracket is in close contact with the first connecting piece;

A fixed cam movable on the rotating shaft, with a hole in the center, one side of the fixed cam is close to the bracket, and the other side of the fixed cam is provided with a plurality of sliding chutes;

A rotating cam embedded on the rotating shaft has an embedded hole in the center, and a plurality of sliding blocks are arranged on the adjacent surface of the fixed cam, so that the fixed cam and the rotating cam are pushed against each other;

an elastic element embedded on the rotating shaft, which is pressed against one side of the rotating cam;

A fixing piece screwed on the end of the rotating shaft is used to fix the relative positions of the aforementioned components on the rotating shaft.

Compared with the prior art, the utility model adopting the above-mentioned technical solution has the advantage that: when the rotating shaft rotates forward or reversely, the half-ring block on the rotating shaft will perform the first stage of rotation until the half-ring block is rotated. After being stopped by the first stop block of the first link piece, the first link piece can be continuously pushed to carry out the second stage of rotation, because the friction area between the half-ring block and the adjacent surface of the first link piece is smaller than that of the first link piece The friction area between the connecting piece and the adjacent surface of the bracket makes the friction area gradually increase during the rotation process. Therefore, when the cover is opened, the first segment of rotation has a lighter feel, and with the second segment of rotation, it gradually changes. Heavy; On the contrary, when closing the lid, it also has the same feel (from light to heavy), so the hinge device of the present utility model has the effect of opening light and closing heavy.

Description of drawings

Fig. 1 is the three-dimensional exploded view of existing hub;

Fig. 2 is a three-dimensional exploded view of a preferred embodiment of the present invention;

Fig. 3 is a three-dimensional exploded view of another preferred embodiment of the present invention;

Fig. 4 is a three-dimensional schematic view after assembly of a preferred embodiment of the present invention;

Fig. 5 is a schematic diagram of the action when opening the cover of the preferred embodiment of the utility model

Figure 6 is a schematic diagram of the action when the preferred embodiment of the utility model is closed

Fig. 7 is a three-dimensional exploded view of another preferred embodiment of the present invention.

Explanation of reference numerals: 10-hub; 11-rotating shaft; 111-fixed part; 12-limiting piece; 13-bracket; 14-fixed cam; 15-rotating cam; 20-rotating shaft; 21-semi-ring block; 22-plane part; 23-rod; 24-thread part; 30-electronic product; 31-screen; ;42-the first stop block; 43-the second stop block; 50-bracket; 51-perforation; 52-the third stop block; 53-positioning hole; Column; 63-sliding chute; 70-rotating cam; 71-embedded hole; 72-sliding block; 73-protrusion; 80-elastic element; 81-shrapnel; 811-elastic space; 812-embedded hole; 90-fixer; 91-nut; 92-gasket; 921-embedded hole; 100-second link; 101-perforation; 102-fourth stop;

Detailed ways

In order to enable your examiner to clearly understand the content of this utility model, only the following descriptions are used to match the drawings, please refer to them.

Please refer to Fig. 2 to Fig. 4, two preferred embodiments of the present invention, among them, as shown in Fig. 2, when the bracket 50 and the first link piece 40 rotate, the embodiment does not have the effect of positioning and blocking; As shown in FIG. 3 , it is an embodiment with positioning and blocking effect when the bracket 50 and the first link piece 40 rotate, and its main structure includes:

A rotating shaft 20, a half ring block 21 is provided at an appropriate position in the middle section, and a rod-shaped body 23 with a symmetrical plane portion 22 is provided at one end of the rotating shaft 20, and a threaded portion 24 is provided at the end of the rod-shaped body 23, and the rotating shaft described in addition One end of 20 is arranged on the side edge of the screen 31 of the electronic product 30 .

A first connecting piece 40, its center is provided with a perforation 41, is installed on the rotating shaft 20 with the activity (that is, the rotating shaft 20 can be rotated freely in the first connecting piece 40), and the first connecting piece 40 one side and One side of the half-ring blocks 21 is close to each other, and one side of the first connecting plate 40 is provided with a first stopper 42 corresponding to the half-ring block 21, so that the first stopper 42 is located on the rotation path of the half-ring block 21, so After the half-ring block 21 rotates, the half-ring block 21 can be pressed against the first stop block 42; please refer to FIG. .

A bracket 50 is provided with a perforation 51 on one side, which is movably installed on the rotating shaft 20 (that is, the rotating shaft 20 can rotate freely in the bracket 50), and one side of the bracket 50 is in contact with the other side of the first connecting piece 40; As shown in the third figure, a third stop block 52 and a positioning hole 53 are provided on the adjacent surface of the bracket 50 and the first link piece 40, and the third stop block 52 is located on the aforementioned first link. On the rotation path of the two stoppers 43 , the bracket 50 is fixed on the side edge of the body 32 of the electronic product 30 for the purpose of stopping and positioning the first link piece 40 .

A fixed cam 60 is provided with a perforation 61 in the center, which is installed on the rotating shaft 20 in a movable manner. One side of the fixed cam 60 is protruded with a positioning post 62, and the positioning post 62 is inserted in the positioning hole 53 of the bracket 50 to form a positioning or The blocking structure makes one side of the fixed cam 60 abut against the support 50 , and the other side of the fixed cam 60 is provided with a plurality of slide grooves 63 .

A rotating cam 70 is provided with an embedded hole 71 in its center. The rotating cam 70 is embedded on the rotating shaft 20 to complete the rotation connection, and the adjacent surface of the rotating cam 70 and the fixed cam 60 is provided with a plurality of sliding blocks. 72, so that the fixed cam 60 and the rotating cam 70 are against each other, and the rotating cam 70 described in addition does not have a side of the sliding block 72, and is provided with a central bulge, and a protruding portion 73 whose outer periphery gradually descends.

An elastic element 80 is composed of a plurality of elastic pieces 81 superimposed on each other. One side of the elastic pieces 81 is raised in the center, and the other side is provided with a concave elastic space 811, and the center is provided with an embedding hole 812 for embedding The elastic space 811 recessed by the elastic piece 81 covers the protruding portion 73 of the rotary cam 70 , and the peripheral edge of the elastic piece 81 abuts against the peripheral edge of the rotary cam 70 .

A fixing part 90 includes a nut 91 and a washer 92. The center of the washer 92 is provided with an embedding hole 921. One side of the washer 92 abuts against the elastic element 70, and the nut 91 is screwed on the rotating shaft 20. The end is used to fix the relative positions of the aforementioned components on the rotating shaft 20 .

Please refer to Fig. 2, Fig. 3, Fig. 5, and Fig. 6. When the cover is opened, the half-ring block 21 of the rotating shaft 20 is to perform the first stage of rotation until the half-ring block 21 is stopped by the first connecting piece 40. Stop block 42 stops, and pushes the first link piece 40 to carry out the rotation of the second section, during the rotation process, because the friction area between the half-ring piece 21 and the first link piece 40 adjacent surface is smaller than the first link piece 40. The friction area between the adjacent surfaces of the sheet 40 and the bracket 50, in the process of opening the cover, will have a lighter feel at the beginning, as the second stage of rotation begins, the friction area will increase and there will be a heavier feel, and in the second gear The stopper 43 is stopped by the third stopper 52 of the bracket 50 to form a positioning effect when the cover is opened; on the contrary, when the cover is closed, the rotating shaft 20 and the half-ring block 21 rotate in the opposite direction until the half-ring The block 21 is stopped by the second stop part 43 again, and the first connecting piece 40 is pushed to rotate, so when the hinge is closed, there will be a relatively light feel at the beginning, and it will gradually increase later, so as to avoid fast closing. The panel is damaged in time; the utility model utilizes the two-stage rotation mode between the rotating shaft 20, the first connecting plate 40 and the bracket 50, the friction area of the first section rotation is smaller than the friction area of the second section rotation, and then Make the hinge device have the effect of opening and closing the weight; moreover, after the utility model utilizes the fixed cam 60 and the rotary cam 70 to rotate relatively, the structure of the sliding inclined groove 63 and the sliding inclined block 72 therebetween makes the sliding inclined block 72 Fall into the sliding chute 63, and produce the effect of automatic locking.

See also Fig. 2, shown in Fig. 7, be another embodiment of the present utility model, be to be provided with a second link piece 100 movablely between the aforementioned first link piece 40 and bracket 50, and the second link piece 100 The diameter of the circle is larger than that of the first linking piece 40, and the center of the second linking piece 100 is also provided with a perforation 101, and the adjacent surface of the second linking piece 100 and the first linking piece 40 is provided with a fourth stop Block 102, the fourth stop block 102 is located on the rotation path of the second stop block 43, and a fifth stop block 103 is provided on the periphery of the second connecting piece 100 described in addition, the third stop block 103 of the bracket 50 52 is on the rotation path of the fifth stop block 103, which can be used to enhance the feel of the hinge when it is turned on and off. It can be seen from this that within the allowable range of the half-ring block 21 of the rotating shaft 20 and the bracket 50, a plurality of blocks can be added. The link plate changes the magnitude of the friction area, which greatly improves the designer's design flexibility.

As mentioned above, please refer to Fig. 2～Fig. 6, the utility model will have the following advantages when being implemented:

The utility model utilizes the rotation of the rotating shaft 20 and the first connecting piece 40 to produce the effect of two-stage rotation, so as to change the friction area between the adjoining surfaces, thereby realizing the hinge structure with the function of opening light and closing heavy.

Furthermore, since the rotating cam 70 and the elastic piece 81 of the present invention are provided with an abutment structure, the handle and service life of the hinge can be improved.

However, the linkage plate of the present invention can be implemented in plural forms, which can change the magnitude of the friction area and increase the designer's design flexibility.

The above description is only illustrative, rather than restrictive, of the present utility model. Those of ordinary skill in the art understand that many modifications, changes or equivalents can be made without departing from the spirit and scope defined in the claims. But all will fall within the protection scope of the present utility model.

Claims (8)

1. an easy opening and heavy closing pivot device is characterized in that, comprises at least:

One rotating shaft, its middle section position are provided with a semi-ring piece;

One activity is arranged in first double-action plate in the rotating shaft, and the center is provided with a perforation, described first double-action plate and the mutual closing of semi-ring piece, and the approximal surface of first double-action plate and semi-ring piece is provided with one first stop block, and first stop block is positioned on the rotation path of semi-ring piece;

One activity is arranged in the support in the rotating shaft, and one side is provided with a perforation, described support one side and with the mutual closing of first double-action plate;

One activity is arranged in the stationary cam in the rotating shaft, and the center is provided with a perforation, described stationary cam one side and the mutual closing of support, and the another side of described stationary cam is provided with a plurality of sliding skewed slots;

One is embedded the turn cam in rotating shaft, and the center is provided with an embedding hole, is provided with a plurality of sliding skewbacks with the approximal surface of stationary cam, makes stationary cam and the mutual contact of turn cam;

One is embedded the elastic element in rotating shaft, and contact is in turn cam one side;

The solid fixed block at the rotating shaft end of one spiral shell is used for setting firmly the relative position of aforementioned components in rotating shaft.

2. easy opening and heavy closing pivot device according to claim 1 is characterized in that: described rotating shaft one end is provided with a rhabodoid with symmetry plane portion, and the rhabodoid end is provided with the screw section.

3. easy opening and heavy closing pivot device according to claim 1, it is characterized in that: the described first double-action plate periphery is provided with one second stop block, corresponding the 3rd stop block that is provided with of approximal surface of described support and first double-action plate is positioned on the rotation path of second stop block the 3rd stop block.

4. easy opening and heavy closing pivot device according to claim 3, it is characterized in that: between described first double-action plate and support and mobile clip be provided with one second double-action plate, the circle footpath of described second double-action plate is bigger than first double-action plate, the approximal surface of second double-action plate and first double-action plate is provided with one the 4th stop block, and the 4th stop block is positioned on the rotation path of second stop block.

5. easy opening and heavy closing pivot device according to claim 3 is characterized in that: the described second double-action plate periphery is provided with one the 5th stop block, and the 3rd stop block of described support is positioned on the rotation path of the 5th stop block.

6. easy opening and heavy closing pivot device according to claim 1 is characterized in that: described support is provided with a positioning hole, and described stationary cam simultaneously convexes with a locating column, and described locating column is plugged in the described positioning hole.

7. easy opening and heavy closing pivot device according to claim 1, it is characterized in that: described turn cam does not have the one side of sliding skewback, be provided with the bump that central uplift, outer periphery are gradually fallen, and elastic element by a plurality of shell fragments coincide mutually the institute constitute, described shell fragment simultaneously is provided with recessed elastic space, is located on the bump of turn cam to coat lid.

8. easy opening and heavy closing pivot device according to claim 1 is characterized in that: described fixed block comprises a nut and a pad, and described pad center is provided with an embedding hole, pad one side and the mutual closing of elastic element.

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