KR200315606Y1 - Friction hinge device - Google Patents

Abstract

The present invention has a cylindrical elastic member having a plurality of extensions formed at one end and spaced apart from each other, and fixed to the first housing, one end and the second housing rotatably inserted in the elastic member. The other end is fixed, the outer peripheral surface of the end provides a friction hinge device comprising a shaft shaft is formed with a spiral oil impregnation groove.

Description

Friction hinge device {FRICTION HINGE DEVICE}

The present invention relates to a friction hinge device, and more particularly to a friction hinge device capable of constantly adjusting the bidirectional rotation torque.

Typically, a friction hinge device is installed between the swing open / close door and the main body to ensure smooth swing movement of the door during opening and closing of the door by external force, even if the external force is removed at the proper swing position. It is possible to maintain the position as it is.

Such a friction hinge device is disclosed in US Pat. No. 5,896,622 to Sheng-Nan Lu. 1 shows this frictional hinge device, which comprises a housing 1 in which an inner channel 1a with a lateral slot 1b is formed; First and second hollow elastic members having distal extensions 5a; 6a, which are inserted into the inner channel 1a of the housing such that the distal extensions fit into the lateral slots 1b of the inner channel 1a of the housing. (5; 6); A sleeve 4 fitted in the hollow elastic portion; A washer 3 and an axial shaft 2 rotatably received in the inner channel 1a of the housing via the sleeve.

The hollow elastic member and the sleeve are hollow cylindrical bodies in which a predetermined plate is rolled in a cylindrical shape so as to be spaced apart from each other so that these elements have an elastic function.

The sleeve 4 inserted into the hollow elastic member fixed in the housing elastically compresses and supports the shaft shaft 2, and when the shaft shaft is rotated, the fixing groove of the axial outer peripheral portion of the hollow sleeve so as not to rotate relative to the hollow sleeve ( 5b) is provided with a fixing projection (4b) to be fixed and a lubricant inlet (4a) to ensure a smooth rotation and reduced wear by distributing the friction force evenly during the rotation of the shaft shaft.

Since the cylindrical first and second hollow elastic members 5 and 6 have one end portions 5a and 6a and the other ends are spaced apart from the one end portion, the cylindrical first and second hollow elastic members 5; The torque value is changed accordingly, which means that the opening load and the closing load are different when the door is opened or closed using the hinge device.

In order to reduce this deviation of the rotational torque, the first and second hollow elastic members 5; 6 are inserted into the channel 1a of the housing 1 by reversing the positions of the both ends spaced apart.

However, such a hinge device of the prior art has to insert two elastic devices in opposite directions to correct the torque value according to the rotation direction, since the sleeve is inserted into the elastic member to be fixed in the axial circumferential direction of the elastic member. The two ends of the sleeve which are in contact with the inner wall of the elastic member generate a nonuniform frictional force when the elastic member rotates, thereby making the opening and closing load of the door uneven by the hinge device.

It is an object of the present invention to provide a hinge device with a simple structure which can make the forward / reverse rotation torque value uniform and reduce the frictional resistance during rotation, so as to solve the problems of the prior art.

1 is an exploded perspective view of a friction hinge device according to the prior art.

Figure 2 is an exploded perspective view of the friction hinge device according to an embodiment of the present invention.

3 is a front view and a side view of an elastic sleeve in the hinge device of FIG.

Figure 4 is a plan view, front view and side view showing a state in which the elastic sleeve is installed in the cylindrical elastic member of the hinge device of FIG.

5 is an exploded perspective view of a friction hinge device according to another embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

10: elastic member

10A: first housing

10a: home

10a ', 10b: extension part

11,21: gap

13a, 13b: fixing groove

20: elastic sleeve

23a, 23b: fixing protrusion

25: oil inlet

30: shaft shaft

30A: second housing

35: oil impregnation groove

In order to achieve the above object, the present invention is a cylindrical elastic member formed with a plurality of extensions at one end and spaced apart from each other, and fixedly installed in the first housing, and in the elastic member to be relatively rotatable with each other. It has an end to be inserted and the other end fixed to the second housing, the outer peripheral surface of the end provides a friction hinge device comprising a shaft shaft is formed with a spiral oil impregnation groove.

According to an embodiment of the present invention, it is fixedly assembled in the cylindrical elastic member, both ends facing each other are spaced apart from each other, further comprising a cylindrical elastic sleeve for elastically compressing the shaft shaft inserted in the cylindrical elastic member from the outer periphery. Characterized in that.

According to one embodiment of the present invention, the extension of one end of the cylindrical elastic member consists of a protruding extension projecting vertically from the cylindrical surface of the elastic member, and a circumferential extension extending circumferentially to the other end side facing the one end And a groove of a corresponding shape is formed on the other end side of which the circumferential extension portion extends.

According to an embodiment of the present invention, the elastic sleeve has an oil supply port formed along the circumferential direction and two fixing protrusions spaced apart along the circumferential direction, and two fixing grooves accommodating the fixing protrusion in the cylindrical elastic member. And one of these fixing grooves is made of a circumferential long hole.

According to an embodiment of the present invention, the cylindrical elastic member is characterized in that a plurality of integrally configured.

According to an embodiment of the present invention, the hinge device is characterized in that the notebook.

According to an embodiment of the present invention, the hinge device is characterized in that the electronic product.

According to an embodiment of the present invention, the hinge device is characterized in that for home appliances.

According to an embodiment of the present invention, the hinge device is characterized in that for the door structure of the building.

According to an embodiment of the present invention, the hinge device is characterized in that the toilet seat.

Hereinafter, with reference to the accompanying Figures 2 to 5 will be described in detail a preferred embodiment of the present invention.

2 is an exploded perspective view of a friction hinge device according to an embodiment of the present invention. According to the drawings, the friction hinge device according to an embodiment of the present invention is a cylindrical elastic member (fixed to the first housing 10) 10A) and a shaft shaft 30 fixed to the second housing 30A and rotatably inserted into the cylindrical elastic member 10.

The cylindrical elastic member 10 has a shape in which a predetermined plate is rolled in a cylindrical shape, and a plurality of extension portions 10a 'and 10b are formed at one end of both ends facing each other, and a predetermined gap 11 is formed between both ends. Is formed.

The plurality of extension portions include a protruding extension portion 10b that projects vertically outward from the cylindrical surface of the cylindrical elastic member 10 and a circumferential extension portion 10a 'that extends in the circumferential direction toward the opposite end side of the protruding extension portion.

The protruding extension portion 10b is fitted into and fixed to the fixing groove 10h 'of the inner channel 10h of the first housing 10A. Accordingly, the protruding extension portion 10b is rotated together when the first housing is rotated and inserted into the cylindrical elastic member. Relative rotation is made about the axial shaft.

The shaft shaft 30 is composed of one end 33 fitted in the elastic member 10 and the other end fitted in the second housing 30A. The end 33 has friction with the elastic member when inserted into the elastic member. A spiral oil impregnated groove 35, which can hold a lubricant, is formed uniformly around the outer circumference to reduce and to ensure a uniform and smooth relative rotation with respect to the elastic member, and at the other end of the hole of the second housing 30A The circumference | surroundings of the fixing | fixed part 31 clamped by 31h are formed.

In the relative rotation between the elastic member 10 and the shaft shaft 30, the opposite ends of the elastic member 10 are formed with a gap 11 and the fixed portion of the elastic member 10 fixed to the housing 10A Since the protruding extension portion 10b protrudes from the cylindrical surface, the forward / reverse rotation torque value of the elastic member is changed according to the forward / reverse rotation of the housing, which means that the hinge device according to the present invention is provided with a predetermined door. It means that the load applied to the opening and closing of the door is different when installed in the assembly.

In order to correct such an imbalance of the rotational torque, the elastic member 10 of the present invention has a circumferential extension portion 10a 'extending in the circumferential direction to the other end side opposite thereto at the end of the protruding extension portion 10b side. On the other end side, a corresponding groove 10a for accommodating the circumferential extension portion is formed.

Since the circumferential extension portion 10a 'is formed in the shape of a gap 11 between both ends of the elastic member, which is inserted into the elastic member 10 and maximizes frictional resistance with a predetermined object to be rotated relative, Even when rotation is made from the end side in which the extension is formed to the other end side, by uniformly distributing the friction with the friction object along the stepped gap, the rotational torque according to the forward / reverse rotation is uniformly adjusted.

The circumferential extension portion 10a 'can be deformed in shape and number, and the torque value can be adjusted according to its width, length and area, including such deformation, so that the above-described deformation factors and dimensions are necessary. By appropriately adjusting the factors, the forward and reverse rotational torque values can be set in a balanced or unbalanced manner, which greatly increases the design freedom in designing the hinge device to the performance required, and such a hinge device is mounted. It can greatly expand the object of the product.

According to an embodiment of the present invention, the deformation of the gap between the elastic member 10 may be permanently expanded due to frequent relative rotation of the elastic member 10 and the shaft shaft 30, thereby preventing and preventing smooth and delicate. In order to ensure relative rotation, it may further comprise an elastic sleeve 20 fixed in the cylindrical elastic member 10 and elastically compressing the shaft shaft 30 from the outer periphery.

Like the elastic member 10, the elastic sleeve 20 is formed in a cylindrical shape with a gap 21 between the opposite ends thereof, and the fixing protrusions 23a and 23b for fixing into the elastic member 10. A lubricant inlet 25 for lubricant input is provided around the circumference.

Fixing grooves 13a and 13b for accommodating the fixing projections 23a and 23b are formed in the circumferential portion of the elastic member 10.

The configuration of the elastic sleeve according to this embodiment is shown in FIG. 3, and the assembled state of the elastic member and the elastic sleeve is shown in FIG. 4.

The elastic sleeve 20 is a cylindrical body having a gap 21 between both ends. The elastic sleeve 20 comprises two fixing protrusions 23a and 23b spaced apart from each other along the circumferential direction for fixing to the elastic member. In order to ensure a single injection, a lubricating lubricant inlet 25 is formed uniformly around the circumference.

When the elastic sleeve 20 is inserted into the cylindrical elastic member 10, both gaps 11 and 21 are disposed to be offset from each other, and one fixing protrusion 23a of the elastic sleeve 20 is formed by one of the elastic members 10. In the fixing groove 13a, the other fixing protrusion 23b is arrange | positioned so that it may be located in the other fixing groove 13b.

At this time, the fixing protrusion 23b and the fixing groove 13b are tightly coupled to each other to form a fixing point, and the fixing groove 13a is formed adjacent to an end of the protruding extension portion 10b of the elastic member 10. The long grooves in the form of long holes in the circumferential direction are provided, and the fixing protrusions 23a disposed in the fixing grooves 13a have a clearance between the lengths of the long holes.

This means that in the relative rotation between the elastic member and the shaft shaft, even if an excessively excessive rotational load is applied locally to the elastic sleeve fixed to the fixed point, an additional instantaneous rotational load is added to the end of the protruding extension portion 10b side having a large rotational torque. This is to prevent the catching and keep the rotation torque uniform along the rotation direction.

According to one embodiment of the present invention, as shown in FIG. 5, in order to obtain better elastic properties and simplify the fixing method, the elastic members share one extension portion 100b and are preferably plural, preferably The two elastic members 100a may be formed of an elastic member 100 having an integrally formed shape. In this case, the structure of each elastic member 100a is the same as that of the above-described embodiment.

One extension may form a fixing hole 110 to be directly fixed to a predetermined fixed object.

In this embodiment, the elastic sleeve and the shaft shaft are the same as those of the above-described embodiment, and the elastic sleeve can be omitted.

The hinge device of the present invention according to the embodiments described above may be used for various purposes, such as a display device such as a notebook, an electronic product including a home appliance, a toilet seat, a door structure used in a building.

According to the above-described configuration, the hinge device of the present invention can make the forward / reverse rotation torque value uniform using a simple structure, and reduce the frictional resistance during rotation.

Claims (10)

A plurality of extension parts are formed at one end and both ends are spaced apart from each other, and a cylindrical elastic member fixedly installed in the first housing, and one end inserted into the elastic member so as to be relatively rotatable with each other, and the other end fixed in the second housing. It has a frictional hinge device characterized in that it comprises a shaft shaft is formed on the outer peripheral surface of the one end of the spiral oil impregnation groove. The cylindrical elastic member of claim 1, further comprising a cylindrical elastic sleeve fixedly assembled in the cylindrical elastic member, and opposite ends facing each other so as to elastically compress an axial shaft inserted into the cylindrical elastic member from an outer periphery. Friction hinge device. The circumferential extension portion of claim 1, wherein the extension portion of one end of the cylindrical elastic member includes a protruding extension portion projecting vertically from the cylindrical surface of the elastic member, and a circumferential extension portion extending circumferentially to the other end side facing the one end. Friction hinge device, characterized in that the groove of the corresponding form is formed on the other end side extending direction direction portion. According to claim 2, The elastic sleeve has a lubricant supply port formed along the circumferential direction and two fixing projections spaced apart in the circumferential direction, The cylindrical elastic member has two fixing grooves for receiving the fixing projections And one of these fixing grooves consists of a circumferential long hole. The friction hinge device according to claim 1 or 2, wherein the plurality of cylindrical elastic members are integrally formed. The friction hinge device according to claim 1 or 2, wherein the hinge device is for a notebook. The friction hinge device according to claim 1 or 2, wherein the hinge device is for an electronic product. The friction hinge device according to claim 1 or 2, wherein the hinge device is for a household appliance. The friction hinge device according to claim 1 or 2, wherein the hinge device is for a toilet seat. The friction hinge device according to claim 1 or 2, wherein the hinge device is for a door structure of a building.