KR102429508B1 - Friction hinge apparatus - Google Patents

Abstract

The disclosed friction hinge device includes: a first hinge element coupled to a pivot object; a second hinge element coupled to the fixed object; a friction shaft pivotably connecting the first hinge element and the second hinge element; and a friction guide configured to frictionally contact the friction shaft.

Description

Friction hinge device {FRICTION HINGE APPARATUS}

The present invention relates to a friction hinge device, and more particularly, by frictionally holding a pivoting object at a desired or predetermined position, and imparting a clicky feeling when the pivoting object pivots, thereby improving ease of use and design freedom. It relates to a friction hinge device that can improve the

The hinge device is configured to pivot a pivot object such as a door, lid, cover, armrest, and the like.

For example, in a vehicle console armrest, the armrest may pivot with respect to the console box by a hinge device. The console box has an accommodating space for accommodating various small items, and opens and closes the upper opening of the console box as the armrest pivots.

The hinge device includes a first hinge element coupled to a pivot object such as an armrest, a second hinge element coupled to a fixed object such as a console box, and a pivot pin mounted between the first hinge element and the second hinge element; and a torsion spring mounted on the pivot pin, and a locking structure for locking or unlocking the pivot position of the first hinge element. The first hinge element is configured to pivot elastically with respect to the second hinge element by the elastic force of the torsion spring.

However, the conventional hinge device may have a complicated structure by a torsion spring and a locking structure, which has disadvantages in that manufacturing cost may increase and design freedom may decrease.

According to the conventional hinge device, it is impossible to properly hold the pivot object at the pivot position desired by the user, and since there is no click feeling during the pivot operation of the first hinge element, the feeling of operation of the pivot object may be reduced, and the pivot object may be opened. There was a disadvantage that the degree could not be properly adjusted.

Matters described in this background section are prepared to enhance understanding of the background of the invention, and may include matters that are not already known to those of ordinary skill in the art to which this technology belongs.

The present invention was devised in consideration of the above points, and the operating feeling is improved by frictionally holding a pivoting object at a desired or predetermined position and imparting a click feeling when the pivoting object is pivoted. It is an object of the present invention to provide a friction hinge device capable of improving the usability and design freedom.

A friction hinge device according to an embodiment of the present invention for achieving the above object,

a first hinge element coupled to the pivot object;

a second hinge element coupled to the fixed object;

a friction shaft pivotably connecting the first hinge element and the second hinge element; and

and a friction guide configured to frictionally contact the friction shaft.

The friction shaft may have a first friction surface, and the friction guide may have a second friction surface in contact with the first friction surface.

The friction shaft may include a head portion and a cylindrical portion extending from the head portion, and the first friction surface may be formed on an outer circumferential surface of the cylindrical portion.

The friction guide may have a friction hole accommodating the cylindrical portion of the friction shaft, and the second friction surface may be formed on an inner circumferential surface of the friction hole.

The friction shaft has a third friction surface, the friction guide has a fourth friction surface in frictional contact with the third friction surface, the third friction surface is formed in the head portion, the fourth The friction surface may be formed on an outer surface of the friction guide.

The friction guide may further include a lubricating groove to which a lubricant is applied, and the lubricating groove may be formed around the friction hole.

The first hinge element includes a first mounting bracket and a first hinge arm extending from the first mounting bracket, and the second hinge element includes a second mounting bracket and a second hinge arm extending from the second mounting bracket. may include

The first hinge arm may have a first pivot lug, the second hinge arm may have a second pivot lug, and the first pivot lug may be pivotably connected to the second pivot lug through the friction shaft. .

The friction shaft may be fixed to the second pivot lug, and the friction guide may be fixed to the first pivot lug.

The second pivot lug may have a stopper extending toward the first hinge element, and the first hinge arm may have a stopper surface contactable with the stopper by rotation of the first pivot lug.

The second pivot lug may have a stopper extending toward the first hinge element, and the friction guide may have a first stopper protrusion and a second stopper protrusion contactable with the stopper by rotation of the first pivot lug. have.

It may further include a washer interposed between the first pivot lug and the second pivot lug.

A friction hinge device according to another embodiment of the present invention,

a first hinge element coupled to the pivot object;

a second hinge element coupled to the fixed object;

a pivot shaft pivotably connecting the first hinge element and the second hinge element; and

and a friction shaft and a friction guide configured to generate a friction force between the first hinge element and the second hinge element.

The friction shaft may have a first friction surface, and the friction guide may have a second friction surface in frictional contact with the first friction surface.

The friction shaft and the pivot shaft may be disposed in parallel.

The friction shaft may include a friction cylindrical portion, and the first friction surface may be formed on an outer circumferential surface of the friction cylindrical portion.

The friction shaft may be fixed to the first hinge element, and the friction shaft may be configured to revolve around the pivot shaft by a pivot of the first hinge element.

The friction guide may have a friction slot for guiding the movement of the friction shaft, and the second friction surface may be formed on an inner surface of the friction slot.

The first hinge element includes a first mounting bracket and a first hinge arm extending from the first mounting bracket, and the second hinge element includes a second mounting bracket and a second hinge arm extending from the second mounting bracket. may include

The first hinge arm may have a first pivot lug, the second hinge arm may have a second pivot lug, and the first pivot lug may be pivotably connected to the second pivot lug through the pivot shaft.

The friction shaft may be fixed to the first pivot lug, and the friction guide may be fixed to the second pivot lug.

The second pivot lug may have a stopper extending toward the first hinge element, and the first hinge arm may have a stopper surface contactable with the stopper by a pivot of the first pivot lug.

The friction guide may have a stopper surface for regulating the movement of the friction shaft.

It may further include a washer interposed between the first pivot lug and the second pivot lug.

According to the present invention, it is possible to frictionally hold a pivoting object at a desired or predetermined position by the friction guide, and by giving a click feeling when the pivoting object is pivoted, the operating feeling can be improved. and can improve usability and design freedom.

1 is a perspective view illustrating a friction hinge device according to an embodiment of the present invention.
2 is an exploded perspective view illustrating a friction hinge device according to an embodiment of the present invention.
FIG. 3 is an enlarged view of part B of FIG. 2 .
4 is an enlarged view of the friction shaft of FIG. 2 .
FIG. 5 is an enlarged view of the friction guide of FIG. 2 .
6 is a side view viewed from the arrow A direction of FIG. 1 , and shows a state in which the first hinge element is positioned at the first position.
7 shows a state in which the first hinge element is positioned at the second position.
8 shows a state in which the first hinge element is positioned at an intermediate position between the first position and the second position.
9 is a cross-sectional view taken along line CC of FIG. 6 .
FIG. 10 is a diagram illustrating a portion D of FIG. 9 .
11 is a diagram illustrating a modified embodiment of FIG. 5 .
12 is a diagram illustrating a modified embodiment of FIG. 10 .
13 is a perspective view illustrating a friction hinge device according to another embodiment of the present invention.
14 is an exploded perspective view illustrating a friction hinge device according to another embodiment of the present invention.
FIG. 15 is an enlarged view of part F of FIG. 13 .
FIG. 16 is an enlarged view of part G of FIG. 13 .
17 is an enlarged view of the friction guide of FIG. 13 .
18 is an enlarged view of the friction shaft of FIG. 13 .
19 is a side view viewed from the direction of arrow E of FIG. 13 , and shows a state in which the first hinge element is positioned at the first position.
20 shows a state in which the first hinge element is positioned at the second position.
21 is a plan view illustrating a friction hinge device according to another embodiment of the present invention;
22 is a cross-sectional view taken along line HH of FIG. 21 .
FIG. 23 is an enlarged view of part K of FIG. 22 .

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. In adding reference numerals to the components of each drawing, it should be noted that the same components are given the same reference numerals as much as possible even though they are indicated on different drawings. In addition, in describing the embodiment of the present invention, if it is determined that a detailed description of a related known configuration or function interferes with the understanding of the embodiment of the present invention, the detailed description thereof will be omitted.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the elements from other elements, and the essence, order, or order of the elements are not limited by the terms. In addition, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

1 and 2 , a friction hinge device according to an embodiment of the present invention includes a first hinge element 10 coupled to a pivot object 1 and a second hinge coupled to a fixed object 2 . The element 20, a friction shaft 30 pivotably connecting the first hinge element 10 and the second hinge element 20, and a friction guide configured to frictionally contact the friction shaft 30 (40) may be included.

The first hinge element 10 includes a first mounting bracket 11 mounted on the pivot object 1 (refer to FIG. 6 ), and at least one first hinge arm 12 extending from the first mounting bracket 11 . can do. For example, the pivot object 1 may be an armrest, a lid, a cover, or the like.

The first mounting bracket 11 may have a flat plate shape flat in a horizontal direction, and the first mounting bracket 11 may be mounted on the pivot object 1 by a plurality of fasteners. The pair of first hinge arms 12 may be spaced apart from each other in the longitudinal direction of the first mounting bracket 11 . 1 and 2 , each of the first hinge arms 12 may extend from each end of the first mounting bracket 11 .

The first hinge arm 12 may have a first pivot lug 13 pivotally connected to the second hinge element 20 , and the first pivot lug 13 is the first hinge arm It can be bent or angled from (12). The first pivot lug 13 may have a first pivot hole 15 for accommodating the friction shaft 30 and a coupling hole 14 for mounting the friction guide 40 .

The first pivot lug 13 includes a pair of fingers 16 formed at an upper end thereof, and each finger 16 moves from the upper end of the first pivot lug 13 to the outside of the first pivot lug 13 . It can be bent, and the pair of fingers 16 are spaced apart from each other so that a fitting gap 17 can be provided between the pair of fingers 16 .

The second hinge element 20 may include a second mounting bracket 21 mounted on the fixing object 2 (refer to FIG. 6 ), and a second hinge arm 22 extending from the second mounting bracket 21 . have. For example, the fixed object may be a console box, a housing, or the like.

The second mounting bracket 21 may have a flat plate shape flat in the vertical direction, and the second mounting bracket 21 may be mounted on the fixing object 2 by a plurality of fasteners, and a pair of second hinges. The arms 22 may be spaced apart along the longitudinal direction of the second mounting bracket 21 . 1 and 2 , each second hinge arm 22 may extend from each end of the second mounting bracket 21 .

The second hinge arm 22 may have a second pivot lug 23 connected to the first pivot lug 13 of the first hinge element 10 through the friction shaft 30 , and the second pivot lug Reference numeral 23 may include a second pivot hole 25 to which the friction shaft 30 is coupled and a stopper 24 for regulating the position of the first hinge element 10 . The stopper 24 may extend toward the first hinge element 10 , and the first hinge arm 12 may have a stopper surface 12a contactable with the stopper 24 of the second pivot lug 23 . have. As shown in FIG. 7 , when the first hinge element 10 moves (pivots) to the second position P2, the stopper surface 12a of the first hinge arm 12 moves to the stopper 24 of the second pivot lug 23. ), the second position P2 of the first hinge element 10 may be regulated (first stopper structure). From this, the stopper 24 of the first hinge arm 12 and the second pivot lug 23 of the first hinge element 10 may constitute a first stopper structure.

1 and 2 , the friction shaft 30 is inserted into the first pivot hole 15 of the first hinge element 10 and the second pivot hole 25 of the second hinge element 20 . The friction shaft 30 may pivotably connect the first pivot lug 13 of the first hinge element 10 and the second pivot lug 23 of the second hinge element 20 .

According to one embodiment, a washer 26 may be interposed between the first pivot lug 13 and the second pivot lug 23 , and the friction shaft 30 may pass through the bore of the washer 26 . There, the washer 26 may regulate the interval between the first pivot lug 13 and the second pivot lug 23 . Referring to FIG. 9 , the washer 26 may have a protrusion 27 inserted into the first pivot hole 15 of the first pivot lug 13 .

4 and 9 , the friction shaft 30 includes a head portion 31 , a cylindrical portion 32 extending from the head portion 31 , and a coupling portion 33 extending from the cylindrical portion 32 . ) may be included. The head part 31 is in contact with the outer surface of the friction guide 40, and the cylindrical part 32 passes through the first pivot hole 15 of the first pivot lug 13 and the bore of the washer 26, , the coupling part 33 may be coupled to the second pivot hole 25 of the second pivot lug 23 through a serration coupling or an interference fitting coupling. Accordingly, the friction shaft 30 may be fixed to the second pivot lug 23 , and the first pivot lug 13 may pivot around the friction shaft 30 .

According to an embodiment, the coupling portion 33 may have a plurality of male teeth formed on its outer circumferential surface, and the plurality of male teeth may have a predetermined pitch along the outer circumferential surface of the coupling portion 33 . can be formed. The second pivot lug 23 may have a plurality of female teeth formed on the inner circumferential surface of the second pivot hole 25 , and the plurality of female teeth are formed along the inner circumferential surface of the second pivot hole 25 . It may be formed with a constant pitch. That is, as the plurality of male teeth mesh with the plurality of female teeth, the coupling part 33 of the friction shaft 30 is connected to the second pivot hole 25 of the second pivot lug 23 through the serration coupling. can be combined.

Referring to FIG. 1 , the friction guide 40 may be fixed to the first pivot lug 13 through a fastener such as a rivet 54 . Referring to FIG. 5 , the friction guide 40 may have a friction hole 41 accommodating the cylindrical portion of the friction shaft 30 and a coupling hole 44 for mounting the friction guide 40 . The rivet 54 is coupled to the coupling hole 14 of the first pivot lug 13 and the coupling hole 44 of the friction guide 40 so that the friction guide 40 is fixed to the first pivot lug 13 . can be Accordingly, as shown in FIG. 9 , the friction guide 40 and the washer 26 may be disposed to face each other on both sides of the first pivot lug 13 .

The cylindrical portion 32 of the friction shaft 30 may have a first friction surface 61 formed on its outer peripheral surface, and the friction guide 40 has a second friction surface formed on the inner surface of the friction hole 41 ( 62) can have. Accordingly, the cylindrical portion 32 of the friction shaft 30 frictionally contacts the inner surface of the friction hole 41 of the friction guide 40 through the first friction surface 61 and the second friction surface 62 . can be configured to Specifically, when the first hinge element 10 pivots with respect to the second hinge element 20, the first friction surface 61 of the cylindrical portion 32 of the friction shaft 30 is the friction guide 40. By frictionally contacting the second friction surface 62 of the friction hole 41 of the friction force may be generated between the friction shaft 30 and the friction guide (40).

The head portion 31 of the friction shaft 30 is configured to frictionally contact the friction guide 40 . Specifically, the head part 31 of the friction shaft 30 may have a third friction surface 63 in frictional contact with the friction guide 40, and the third friction surface 63 is the friction guide. It may be formed in a portion in contact with the outer surface of (40). The friction guide 40 may have a fourth friction surface 64 , and the fourth friction surface 64 is outside the friction guide 40 in contact with the head part 31 of the friction shaft 30 . It may be formed on the side. Accordingly, by frictionally contacting the third friction surface 63 of the head part 31 of the friction shaft 30 with the fourth friction surface 64 of the friction guide 40, the friction force is generated by the friction shaft 30. And it may occur between the friction guide (40).

According to one embodiment, the friction hole 41 may have an opening 42 , and the friction shaft 30 may be easily inserted into the friction hole 41 through the opening 42 .

According to an embodiment, the friction guide 40 may have a lubrication groove 43 formed on an outer surface thereof, and the lubrication groove 43 may be formed around the friction hole 41 . In particular, the lubrication groove 43 may be formed on the fourth friction surface 64 , a lubricant such as grease may be applied to the lubrication groove 43 , and the friction shaft 30 and the friction guide The frictional force generated between the 40 can be appropriately controlled or adjusted by the lubricant applied to the lubricating groove 43 . Accordingly, when the first hinge element 10 pivots relative to the second hinge element 20, the lubricant applied to the lubrication groove 43 and the friction surfaces 61, 62, 63, and 64 A pivoting force of the hinge element 10 may be uniformly maintained.

According to one embodiment, the friction guide 40 may have a fitting protrusion 46 extending upwardly at its upper end, and the fitting protrusion 46 is in the fitting gap 17 of the first pivot lug 13 . can be fitted. The friction guide 40 may be firmly coupled to the first pivot lug 13 by the fitting protrusion 46 and the fitting gap 17 .

When the user moves the first hinge element 10 and the pivot object 1 to the second position P2 by excessive external force, the first hinge arm 12 of the first hinge element 10 moves to the second pivot lug 23 ) of the stopper 24 can be deformed. In order to prevent the stopper 24 of the second pivot lug 23 from being deformed, the embodiment of the present invention may have a second stopper structure.

According to an embodiment, the friction guide 40 has a first stopper protrusion 51 and a second stopper which are contactable with the stopper 24 of the second pivot lug 23 by the pivot of the first pivot lug 13 . It may have a projection 52 (second stopper structure). The first stopper protrusion 51 may extend from the upper end of the friction guide 40 toward the first mounting bracket 11 , and the first stopper protrusion 51 may be disposed adjacent to the fitting protrusion 46 . have. The second stopper protrusion 52 may extend from the lower end of the friction guide 40 toward the first hinge arm 12 . As the first hinge element 10 moves (pivots) between the first position P1 and the second position P2, the first stopper protrusion 51 comes into contact with the stopper 24 of the second pivot lug (Fig. 6). see) or the second stopper protrusion 52 may come into contact with the stopper 24 of the second pivot lug 23 (see FIG. 7 ), through which a sense of click may be imparted to the first hinge element 10 ). may be regulated within a pivot range between the first position P1 and the second position P2. From this, the first stopper protrusion 51 and the second stopper protrusion 52 of the friction guide 40 and the stopper 24 of the second pivot lug 23 may constitute a second stopper structure.

In particular, in a state in which the first hinge element 10 and the pivot object 1 are positioned at the first position P1 as shown in FIG. 6 , the second stopper protrusion 52 and the stopper surface of the first hinge arm 12 ( 12a) may be located below the stopper 24 of the second pivot lug 23, and at least a portion of the second stopper protrusion 52 is second than the stopper surface 12a of the first hinge arm 12. It may be configured to be closer to the stopper 24 of the pivot lug 23 . Accordingly, when the first hinge element 10 moves to the second position P2, the contact between the second stopper protrusion 52 and the stopper 24 is the stopper surface 12a of the first hinge arm 12 and the stopper (24) can be made prior to the contact between. As such, as the stopper 12a of the first hinge arm 12 comes into contact with the stopper 24 after the second stopper protrusion 52 first contacts the stopper 24, the first hinge element 10 and The excessive external force applied to the pivot object 1 can be adequately buffered, and through this, the first hinge arm 12 of the first hinge element 10 is moved by the stopper 24 of the second pivot lug 23 due to the excessive external force. can be prevented from being deformed. As described above, in the friction hinge device according to the embodiment of the present invention, the first stopper protrusion 51 and the second stopper protrusion 52 of the friction guide 40 are formed with the stopper 24 of the second pivot lug 23 and Through the contactable structure, click feeling and position regulation can be effectively made.

When the user moves the pivot object 1 relative to the fixed object 2 , the first pivot lug 13 of the first hinge element 10 moves to the second pivot lug 23 of the second hinge element 20 . ), the first friction surface 61 of the friction shaft 30 may frictionally contact the third friction surface 63 of the friction guide 40, and the friction shaft 30 ) of the second friction surface 62 may frictionally contact the fourth friction surface 64 of the friction guide 40 . By the frictional contact between the friction shaft 30 and the friction guide 40, the pivot object 1 can be properly held at a desired position.

6 shows a state in which the first hinge element 10 and the pivot object 1 are moved to the first position, and the first position P1 is the position where the pivot object 1 is closest to the fixed object 2 can Specifically, the first position may be a position where the first mounting bracket 11 of the first hinge element 10 is closest to the second mounting bracket 21 of the second hinge element 20 . At the first position P1, the first stopper protrusion 51 of the first hinge element 10 may come into contact with the stopper 24 of the second pivot lug 23 (refer to FIG. 6). A click can be felt for the first position, and the first position of the first hinge element 10 can be regulated. For example, when the hinge device according to an embodiment of the present invention is applied to a console armrest, the pivot object 1 may be an armrest, the fixed object 2 may be a console box, and the first position P1 is It may be a position in which the armrest, which is the pivot object, completely closes the console box, which is the fixed object.

7 shows a state in which the first hinge element 10 and the pivot object 1 are moved to the second position P2, and the second position P2 is where the pivot object 1 is the most from the fixed object 2 It could be a remote location. Specifically, the second position P2 may be a position where the first mounting bracket 11 of the first hinge element 10 is most spaced apart from the second mounting bracket 21 of the second hinge element 20. have. At the second position P2, the second stopper protrusion 52 of the first hinge element 10 may contact the stopper 24 of the second pivot lug, so that the user clicks on the second position P2. A sense may be felt, and the second position of the first hinge element 10 may be regulated. For example, when the hinge device according to the embodiment of the present invention is applied to a console armrest, the pivot object 1 may be an armrest, the fixed object 2 may be a console box, and the second position P2 is The armrest, which is a pivot object, may be a position where the console box, which is a fixed object, is completely opened.

8 shows a state in which the first hinge element 10 and the pivot object 1 are positioned at an intermediate position PS between the first position P1 and the second position P2. At the intermediate position PS, the first stopper protrusion 51 and the second stopper protrusion 52 of the first hinge element 10 may be spaced apart from the stopper 24 of the second pivot lug 23 . For example, when the hinge device according to the embodiment of the present invention is applied to a console armrest, the pivot object 1 may be an armrest, the fixed object 2 may be a console box, and the intermediate position PS is the pivot. It may be a position where the armrest, which is the object, partially opens the console box, which is the fixed object.

11 is a modified embodiment of FIG. 5 , the friction guide 40 does not include the fitting protrusion 46 , the first and second stopper protrusions 51 and 52 , and the lubrication groove 43 is a friction hole (41) may not be formed around the perimeter.

Fig. 12 is a modified embodiment of Fig. 9, the friction shaft 30 does not have a head portion, and thus the friction shaft 30 does not have a third friction surface, and the friction guide 40 has a fourth friction It may not have sides.

13 to 23 show a friction hinge device according to another embodiment of the present invention.

13 and 14 , a friction hinge device according to another embodiment of the present invention includes a first hinge element 110 coupled to a pivot object 1 and a second hinge element coupled to a fixed object 2 . (120), a pivot shaft 170 pivotably connecting the first hinge element 110 and the second hinge element 120, and between the first hinge element 110 and the second hinge element 120 It may include a friction shaft 130 and a friction guide 140 configured to generate a friction force.

The first hinge element 110 may include a first mounting bracket 111 mounted on the pivot object 1 , and one or more first hinge arms 112 extending from the first mounting bracket 111 . For example, the pivot object 1 may be an armrest, a lid, a cover, or the like.

The first mounting bracket 111 may have a flat plate shape flat in the horizontal direction, and the first mounting bracket 111 may be mounted on the pivot object 1 by a plurality of fasteners. The pair of first hinge arms 112 may be spaced apart from each other in the longitudinal direction of the first mounting bracket 111 . 13 and 14 , each of the first hinge arms 112 may extend from each end of the first mounting bracket 111 .

The first hinge arm 112 may have a first pivot lug 113 pivotally connected to the second hinge element 120 , and the first pivot lug 113 is separated from the first hinge arm 112 . can be bent. The first pivot lug 113 may have a first pivot hole 115 accommodating the pivot shaft 170 and a coupling hole 114 to which the friction shaft 130 is coupled. As the pivot shaft 170 passes through the first pivot hole 115 of the first pivot lug 113 , the first pivot lug 113 can pivot around the pivot shaft 170 , and the friction shaft 130 . ) is coupled to the coupling hole 114 of the first pivot lug 113 , so that the friction shaft 130 may be fixed to the first pivot lug 113 of the first hinge element 110 .

The second hinge element 120 may include a second mounting bracket 121 mounted on the fixing object 2 , and a second hinge arm 122 extending from the second mounting bracket 121 . For example, the fixed object may be a console box, a housing, or the like.

The second mounting bracket 121 may have a flat plate shape flat in a vertical direction, and the second mounting bracket 121 may be mounted on the fixing object 2 by a plurality of fasteners, and a pair of second hinges. The arms 122 may be spaced apart along the longitudinal direction of the second mounting bracket 121 . 13 and 14 , each second hinge arm 122 may extend from each end of the second mounting bracket 121 .

The second hinge arm 122 may have a second pivot lug 123 connected to the first pivot lug 113 of the first hinge element 110 through the pivot shaft 170 , and the second pivot lug ( The 123 may have a second pivot hole 125 accommodating the pivot shaft 170 and a stopper 124 regulating the position of the first hinge element 110 . The stopper 124 may have a first fitting hole 153 , and the stopper 124 extends from the upper end of the second pivot lug 123 toward the first hinge arm 112 of the first hinge element 110 . The first hinge arm 112 may have a stopper surface 112a contactable with the stopper 124 by the pivot of the first pivot lug 113 . As shown in FIG. 20 , when the first hinge element 110 moves to the second position P2 , the stopper surface 112a of the first hinge arm 112 comes into contact with the stopper 124 of the second pivot lug 123 . By doing so, the second position P2 of the first hinge element 110 may be regulated. From this, the first hinge arm 112 of the first hinge element 110 and the stopper 124 of the second pivot lug 123 may constitute a first stopper structure.

14 and 16 , the second pivot lug 123 may have a support part 126 for supporting the front end of the pivot guide 140 , and the support part 126 is the second pivot lug 123 of the second pivot lug 123 . It may extend toward the first pivot lug 113 from the front end. The support part 126 may have a second fitting hole 154 .

14 and 21 , a washer 180 may be interposed between the first pivot lug 113 and the second pivot lug 123 , and the washer 180 includes the first pivot lug 113 and the second pivot lug 123 . The gap between the two pivot lugs 123 can be regulated. The washer 180 may include a pair of washer rings 181 and a connecting rib 182 connecting the pair of washer rings 181 . Each washer 181 may have a bore 183 to receive the cylindrical portion 172 of the pivot shaft 170 , and the bore 183 of each washer 181 may have a bore 183 of the first pivot lug 113 . The first pivot hole 115 and the second pivot hole 125 of the second pivot lug 123 may be aligned.

14 and 18 , the friction shaft 130 may include a cylindrical portion 132 and a coupling portion 133 extending from the cylindrical portion 132 . The cylindrical portion 132 may have a first friction surface 161 formed on its outer peripheral surface. Since the coupling part 133 is coupled to the coupling hole 114 of the first pivot lug 113 through a serration coupling or an interference fitting coupling, the friction shaft 130 is the first of the first hinge element 110 . It may be fixed to the pivot lug 113 , through which the friction shaft 130 revolves around the pivot shaft 170 by the pivot of the first pivot lug 113 of the first hinge element 110 . )can do. According to one embodiment, the coupling portion 133 may have a plurality of male teeth formed on its outer circumferential surface, and the plurality of male teeth may be formed at a predetermined pitch along the outer circumferential surface of the coupling portion 133 . . The first pivot lug 113 may have a plurality of female teeth formed on the inner circumferential surface of the coupling hole 114 , and the plurality of female teeth are formed at a predetermined pitch along the inner circumferential surface of the coupling hole 114 . can be Since the plurality of male teeth are engaged with the plurality of female teeth, the coupling part 133 may be coupled to the coupling hole 114 of the first pivot lug 113 through a serration coupling.

The pivot shaft 170 may be disposed parallel to the friction shaft 130 . 13 and 14 , the pivot shaft 170 is pivoted by being inserted into the first pivot hole 115 of the first hinge element 110 and the second pivot hole 125 of the second hinge element 120 . The shaft 170 may pivotably connect the first hinge element 110 and the second hinge element 120 . The pivot shaft 170 may include a head portion 171 , a cylindrical portion 172 extending from the head portion 171 , and a coupling portion 173 extending from the cylindrical portion 172 . The cylindrical part 172 passes through the first pivot hole 115 of the first pivot lug 113 , the washer 180 , and the third pivot hole 146 of the friction guide 140 , and the coupling part 173 . may be configured to be coupled to the second pivot hole 125 of the second pivot lug 123 through serration coupling or interference fitting. According to one embodiment, the coupling portion 173 may have a plurality of male teeth formed on its outer circumferential surface, and the plurality of male teeth may be formed at a predetermined pitch along the outer circumferential surface of the coupling portion 173 . . The second pivot lug 123 may have a plurality of female teeth formed on the inner circumferential surface of the second pivot hole 125 , and the plurality of female teeth are formed along the inner circumferential surface of the second pivot hole 125 . It may be formed at a constant pitch. Since the plurality of male teeth are engaged with the plurality of female teeth, the coupling part 173 may be coupled to the second pivot hole 125 of the second pivot lug 123 through a serration coupling.

13 and 14 , the friction guide 140 may be mounted between the first pivot lug 113 and the second pivot lug 123 through the pivot shaft 170 . 13, 14 and 17, the friction guide 140 is a friction slot 141 and a washer 180 for guiding the revolution of the friction shaft 130 by the pivot of the first pivot lug 113. ) may include a third pivot hole 146 aligned with the through hole 183 .

The friction slot 141 may be formed in an arc shape to correspond to the orbital trajectory of the friction shaft 130 by the pivot of the first pivot lug 113 . The friction slot 141 may have a second friction surface 162 formed on its inner surface, and the first friction surface 161 of the cylindrical portion 132 of the friction shaft 130 is the friction guide 140 . By frictionally contacting the second friction surface 162 of the friction slot 141 , a friction force may be generated between the friction shaft 130 and the friction guide 140 . The third pivot hole 146 may be configured to receive the cylindrical portion 172 of the pivot shaft 170 .

According to an embodiment, a lubricant such as grease may be applied to the second friction surface 162 of the friction slot 141 , and the first friction surface 161 of the friction shaft 130 and the friction Since the frictional force between the second friction surfaces 162 of the guide 140 can be appropriately controlled or adjusted by the lubricant, when the first hinge element 110 pivots relative to the second hinge element 120 , the first The pivoting force of the hinge element 110 may be uniformly maintained by the lubricant applied to the second friction surface 162 and the friction surfaces 161 and 162 .

The friction slot 141 may have a plurality of seating grooves 145 , and the friction slot 141 may be selectively seated in the plurality of seating grooves 145 to give a click feeling. The friction slot 141 may have an opening 142 formed at one end thereof. The friction guide 140 may have a rib 147 configured as a cantilever structure by a friction slot 141 and an opening 142 . Since the rib 147 is connected to the friction guide 140 in a cantilever structure, the rib 147 may be elastically deformed with respect to the friction guide 140 . Due to the elastic deformation of the rib 147 , the cylindrical portion 132 of the friction shaft 130 can be easily inserted into the friction slot 141 through the opening 142 and the rib 147 .

The cylindrical portion 172 of the pivot shaft 170 passes through the first pivot hole 115 of the first pivot lug 113 , the washer 180 and the third pivot hole 146 of the friction guide 140 , The coupling portion 173 of the pivot shaft 170 is coupled to the second pivot hole 125 of the second pivot lug 123, so that the friction guide 140 is connected to the first pivot lug 113 and the second pivot lug ( 123) can be fixedly located between

The friction guide 140 may have a fitting groove 144 formed at its upper end, and the connecting rib 182 of the washer 180 is fitted into the fitting groove 144 of the friction guide 140, as shown in FIG. A pair of washers 181 may be disposed to face both sides of the friction guide 140 as shown.

The friction guide 140 may have a first fitting protrusion 151 formed on its upper end and a second fitting protrusion 152 formed in front thereof, and the first fitting protrusion 151 is the first of the stopper 124 . It may be fitted into the fitting hole 153 , and the second fitting protrusion 152 may be fitted into the second fitting hole 154 of the support part 126 . Accordingly, the friction guide 140 may be firmly fixed to the second pivot lug 123 .

When the user pivots the first hinge element 110 and the pivot object 1 to the second position P2 by excessive external force, the first hinge arm 112 of the first hinge element 110 moves to the second pivot lug ( The stopper 124 of 123 may be deformed. In order to prevent the stopper 124 of the second pivot lug 123 from being deformed, the present invention may have a second stopper structure.

As the first hinge element 110 moves (pivots) to the second position P2, the cylindrical portion 132 of the friction shaft 130 comes into contact with the stopper surface 143 of the friction slot 141 (Fig. 22). and FIG. 23 ), a sense of click may be imparted through this, and the second position P2 of the first hinge element 110 may be regulated. From this, the friction guide 140 and the stopper surface 143 of the friction slot 141 may constitute a second stopper structure.

According to one embodiment, the friction guide 140 may have a stopper surface 143 formed at the other end of the friction slot 141 (second stopper structure), and the stopper surface 143 of the friction guide 140 . ) may be curved to correspond to the cylindrical portion 132 of the friction shaft 130 . 19, the stopper surface 143 of the friction guide 140 and the stopper of the first hinge arm 112 in a state where the first hinge element 110 and the pivot object 1 are located at the first position P1, as shown in FIG. The surface 112a may be located below the stopper 124 of the second pivot lug 123 , and the stopper surface 143 of the friction guide 140 is the stopper surface 112a of the first hinge arm 112 . ) may be configured to be closer to the stopper 124 of the first pivot lug 123 than. Accordingly, when the first hinge element 110 moves to the second position P2, the contact between the cylindrical portion 132 of the friction shaft 130 and the stopper surface 143 of the friction slot 141 is the first hinge The contact between the stopper surface 112a of the arm 112 and the stopper 124 of the second pivot lug 123 may be made earlier. In this way, after the cylindrical portion 132 of the friction shaft 130 first contacts the stopper surface 143 of the friction slot 141, the stopper surface 112a of the first hinge arm 112 becomes the second pivot lug. By contacting the stopper 124 of 123, the external force applied to the first hinge element 110 and the pivot object 1 can be appropriately buffered, and through this, the first of the first hinge element 110 due to the excessive external force. It is possible to prevent the hinge arm 112 from deforming the stopper 124 of the second pivot lug 123 . As such, in the friction hinge device according to the embodiment of the present invention, the click feeling and position regulation are controlled through the structure in which the cylindrical portion 132 of the friction shaft 130 can contact the stopper surface 143 of the friction slot 141 . can be done effectively.

When the user pivots the pivot object 1 with respect to the fixed object 2 , the first pivot lug 113 may pivot with respect to the second pivot lug 123 , and the first friction of the friction shaft 130 . The surface 161 may frictionally contact the second friction surface 162 of the friction guide 140 . By frictional contact between the friction shaft 130 and the friction guide 140 , the pivot object 1 can be properly held at a desired position.

19 shows a state in which the first hinge element 110 and the pivot object 1 are moved to the first position, and the first position P1 may be a position where the pivot object 1 is close to the fixed object 2 have. Specifically, the first position may be a position where the first mounting bracket 111 of the first hinge element 110 is closest to the second mounting bracket 121 of the second hinge element 120 . For example, when the hinge device according to the embodiment of the present invention is applied to a console armrest, the pivot object 1 may be an armrest, the fixed object 2 may be a console box, and the first position P1 is It may be a position in which the armrest, which is the pivot object, completely closes the console box, which is the fixed object.

20 shows a state in which the first hinge element 110 and the pivot object 1 are moved to the second position P2, and the second position P2 is where the pivot object 1 is the most from the fixed object 2 It could be a remote location. Specifically, the second position P2 may be a position where the first mounting bracket 111 of the first hinge element 110 is most spaced apart from the second mounting bracket 121 of the second hinge element 120 . have. For example, when the hinge device according to the embodiment of the present invention is applied to a console armrest, the pivot object 1 may be an armrest, the fixed object 2 may be a console box, and the second position P2 is The armrest, which is a pivot object, may be a position where the console box, which is a fixed object, is completely opened.

The above description is merely illustrative of the technical spirit of the present invention, and various modifications and variations will be possible without departing from the essential characteristics of the present invention by those skilled in the art to which the present invention pertains.

Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to illustrate, and the scope of the technical spirit of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

1: Pivot object 2: Fixed object
10: first hinge element 11: first mounting bracket
12: first hinge arm 13: first pivot lug
14: coupling hole 15: first pivot hole
16: finger 17: fitting gap
20: second hinge element 21: second mounting bracket
22: second hinge arm 23: second pivot lug
24: stopper 25: second pivot hole
26: washer 27: protrusion
30: friction shaft 31: head part
32: cylindrical part 33: coupling part
40: friction guide 41: friction hole
42: opening 43: lubrication groove
44: coupling hole 46: fitting projection
51: first stopper projection 52: second stopper projection
54: rivet 61: first friction surface
62: second friction surface 63: third friction surface
64: fourth friction surface
110: first hinge element 111: first mounting bracket
112: first hinge arm 113: first pivot lug
114: coupling hole 115: first pivot hole
112a: stopper surface 120: second hinge element
121: second mounting bracket 122: second hinge arm
123: second pivot lug 124: stopper
125: second pivot hole 126: support
130: friction shaft 132: cylindrical portion
133: coupling portion 140: friction guide
141: friction slot 142: opening
143: stopper surface 144: fitting groove
145: seating groove 146: third pivot hole
147: rib 151: first fitting projection
152: second fitting projection 153: first fitting hole
154: second fitting hole 161: first friction surface
162: second friction surface 170: pivot shaft
171: head portion 172: cylindrical portion
173: coupling portion 180: washer
181: washer 182: connecting rib
183: through hole

Claims (24)

a first hinge element coupled to the pivot object;
a second hinge element coupled to the fixed object;
a friction shaft pivotably connecting the first hinge element and the second hinge element, and having a cylindrical portion; and
a friction guide configured to frictionally contact the friction shaft and having a lubricating groove to which a lubricant is applied; and
The friction guide has a friction hole for accommodating the cylindrical portion of the friction shaft,
The lubricating groove is a friction hinge device formed around the friction hole. The method according to claim 1,
The friction shaft has a first friction surface, the friction guide friction hinge device having a second friction surface in contact with the first friction surface. 3. The method according to claim 2,
The friction shaft includes a head portion, and the first friction surface is a friction hinge device formed on an outer circumferential surface of the cylindrical portion. 4. The method of claim 3,
The second friction surface is a friction hinge device formed on the inner peripheral surface of the friction hole. 5. The method according to claim 4,
The friction shaft has a third friction surface, the friction guide has a fourth friction surface in frictional contact with the third friction surface,
The third friction surface is formed on the head portion, and the fourth friction surface is formed on an outer surface of the friction guide.
delete The method according to claim 1,
The first hinge element includes a first mounting bracket and a first hinge arm extending from the first mounting bracket,
The second hinge element includes a second mounting bracket and a second hinge arm extending from the second mounting bracket. 8. The method of claim 7,
The first hinge arm has a first pivot lug, the second hinge arm has a second pivot lug, and the first pivot lug is frictionally connected to the second pivot lug via the friction shaft. hinge device. 9. The method of claim 8,
The friction shaft is fixed to the second pivot lug, and the friction guide is fixed to the first pivot lug. 10. The method of claim 9,
The second pivot lug has a stopper extending toward the first hinge element, and the first hinge arm has a stopper surface contactable with the stopper according to the rotation of the first pivot lug. 11. The method of claim 10,
The second pivot lug has a stopper extending toward the first hinge element, and the friction guide has a first stopper protrusion and a second stopper protrusion contactable with the stopper according to the rotation of the first pivot lug. hinge device. 9. The method of claim 8,
The friction hinge device further comprising a washer interposed between the first pivot lug and the second pivot lug. a first hinge element coupled to the pivot object;
a second hinge element coupled to the fixed object;
a pivot shaft pivotably connecting the first hinge element and the second hinge element;
a friction shaft and a friction guide configured to generate a friction force between the first and second hinge elements; and
Including; a washer interposed between the first hinge element and the second hinge element;
The washer includes a pair of washers and a connecting rib connecting the pair of washers, each washer having a bore for receiving the pivot shaft, the friction guide having a fitting groove provided at its upper end, , A friction hinge device in which the connecting rib of the washer is fitted into the fitting groove of the friction guide, and the one-phase washer is disposed to face both sides of the friction guide. 14. The method of claim 13,
The friction shaft has a first friction surface, the friction guide friction hinge device having a second friction surface in frictional contact with the first friction surface. 14. The method of claim 13,
The friction hinge device and the friction shaft and the pivot shaft are arranged in parallel. 15. The method of claim 14,
The friction shaft includes a friction cylinder,
The first friction surface is a friction hinge device formed on the outer peripheral surface of the friction cylinder. 15. The method of claim 14,
the friction shaft is fixed to the first hinge element, and the friction shaft is configured to revolve around the pivot shaft by a pivot of the first hinge element. 15. The method of claim 14,
The friction guide has a friction slot for guiding the movement of the friction shaft,
The second friction surface is a friction hinge device formed on the inner surface of the friction slot. 14. The method of claim 13,
The first hinge element includes a first mounting bracket and a first hinge arm extending from the first mounting bracket,
The second hinge element includes a second mounting bracket and a second hinge arm extending from the second mounting bracket. 20. The method of claim 19,
The first hinge arm has a first pivot lug, the second hinge arm has a second pivot lug, and the first pivot lug is a friction hinge pivotally connected to the second pivot lug via the pivot shaft. Device. 21. The method of claim 20,
The friction shaft is fixed to the first pivot lug, and the friction guide is fixed to the second pivot lug. 22. The method of claim 21,
The second pivot lug has a stopper extending toward the first hinge element, and the first hinge arm has a stopper surface contactable with the stopper by a pivot of the first pivot lug. 22. The method of claim 21,
The friction guide is a friction hinge device having a stopper surface for regulating the movement of the friction shaft. 22. The method of claim 21,
The washer is a friction hinge device interposed between the first pivot lug and the second pivot lug.

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