JP3157277U - Hinge - Google Patents

Abstract

A hinge is provided in which the required torque varies during operation. A rotating cam having a disk shape is formed on the side surface, and an inner peripheral rail and an outer peripheral rail each having a first starting end, and the rotating cam is provided adjacent to the rotating cam. On the side surface, an inner peripheral projection 51 corresponding to the inner peripheral rail, and an outer peripheral projection 52 corresponding to the outer peripheral rail are provided with a fixed cam 50 having a disk shape and projecting in the radial direction. Furthermore, a first slope having a thickness gradually increasing from the first starting end toward one side is formed on each of the inner and outer rails of the rotating cam, and the thickness gradually decreases from the end of the first slope. A second slope 435 is formed, and a third slope 436 having a thickness gradually increasing from the end of the second slope is further formed to constitute the hinge. [Selection] Figure 4

Description

  The present invention relates to a hinge that opens and closes a cover with respect to a main body by being installed between the cover and the main body in a foldable electronic device.

  Since a folding electronic device such as a notebook personal computer or a mobile phone currently used is provided with a hinge between the cover and the main body, the cover can be opened and closed with respect to the main body. In other words, the cover can be lifted upward from the main body when in use, and the cover can be closed to the main body when not in use, so that the foldable electronic device can be miniaturized. Convenient.

  When using the function of the foldable electronic device, the cover may be opened to an appropriate position, and after use, the cover may be closed to the main body side. However, in the conventional hinge, the torque required to operate is constant, and the only way to adjust the cover opening / closing speed is to adjust the force applied to the cover part. Since it was very troublesome, it was very inconvenient in use.

  Accordingly, the present invention has been devised, and an object thereof is to provide a hinge in which a required torque varies during operation.

The invention of claim 1 of the present application comprises a pivot (10),
A rotating seat (30) rotatably mounted on the pivot (10);
Inner rails (1) that are mounted on the pivot (10) and fixed to the rotary seat (30) and have first start ends (421) and (431) along the radial direction on the surface opposite to the rotary seat ( 42) and the outer peripheral rail (43) are formed, a rotating cam (40) having a disk shape,
An inner peripheral protrusion which is fixed to the pivot (10) so as to be adjacent to the rotary cam (40) and which corresponds to the inner peripheral rail (42) along the radial direction on the surface of the rotary cam (40). (51) and a fixed cam (50) having a disk shape, on which the outer peripheral rail (43) and a corresponding outer peripheral projection (52) are projected,
A disc spring unit (60);
A fixing member (80) fixed to the other end of the pivot (10) in order,
A first inclined surface (424) having a thickness gradually increasing from the first starting end (421) (431) toward the one side on the inner peripheral rail (42) and the outer peripheral rail (43) in the rotating cam (40), respectively. 434) is formed, and second slopes (425) and (435) having a thickness gradually decreasing from the ends (4241) and (4341) of the first slopes (424) and (434) are formed. (425) Provided is a hinge characterized in that third slopes (426) and (436) with increasing thickness are formed from the ends (4251) and (4351) of (435).

  In the invention of claim 2 of the present application, the inner peripheral rail (42) and the outer peripheral rail (43) are provided with second starting ends (422) and (432) along the radial direction, and the second starting end (422) ( 432) toward the one side, first slopes (424) and (434), second slopes (425) and (435), and third slopes (426) and (436) are sequentially formed. A plane (427) is formed between the two third slopes (426) in the peripheral rail (42), and a plane (437) is formed between the two third slopes (436) in the outer rail (43). The hinge according to claim 1, wherein the hinge is formed.

  In the invention of claim 3 of the present application, the first start ends (421) and (431) of the inner peripheral rail (42) and the outer peripheral rail (43) are provided at positions facing the rotary cam (40), respectively, The hinge according to claim 2, wherein the second start ends (422) and (432) of the peripheral rail (42) and the outer peripheral rail (43) are provided at positions facing the rotary cam (40), respectively. provide.

  In the invention of claim 4 of the present application, a concave groove (423) is formed between the first start end (421) and the second start end (422) of the inner peripheral rail (42), and the outer peripheral rail (43 The hinge according to claim 3, wherein a concave groove (433) is formed between the first start end (431) and the second start end (432).

In the invention of claim 5 of the present application, the inner peripheral protrusion (51) is wider than a range (420) between the first start end (421) and the second start end (422) of the inner peripheral rail (42), Having a bottom surface (510) narrower than the range between the two ends (4241) of the first slope (424);
The outer protrusion (52) is wider than a range (430) between the first start end (431) and the second start end (432) of the outer periphery rail (43), and has two end points on the first slope (434). 5. A hinge according to claim 4, characterized in that it has a bottom surface (520) narrower than the range between (4341).

  The invention of claim 6 of the present application is characterized in that guide slopes (511) (521) located on both sides of the bottom surface (510) (520) are formed on the inner peripheral protrusion (51) and the outer peripheral protrusion (52). A hinge according to claim 5 is provided.

The invention of claim 7 of the present application is that the pivot (10) is a rod having a non-circular cross-sectional shape,
A non-circular through hole (501) is formed in the fixed cam (50), and the fixed cam (50) is mounted on the pivot (10) through the through hole (501). A hinge according to any one of claims 1 to 6 is provided.

In the invention of claim 8 of the present application, a central hole (31) is formed in the rotary seat (30), and the rotary seat (30) is mounted on the pivot (10) via the central hole (31). ,
An annular protrusion (401) fitted into the center hole (31) of the rotary seat (30) is provided in a radial direction on the surface of the rotary cam (40) on the rotary seat (30) side. A hinge according to claim 7 is provided.

The invention of claim 9 of the present application further includes a fixed seat (20) fixed to one end of the pivot (10),
The hinge according to claim 8, characterized in that a flange (12) located between the rotary seat (30) and the fixed seat (20) protrudes radially on the pivot (10). I will provide a.

  The invention of claim 10 of the present application is a foldable electronic device having a cover (91) and a main body (92), comprising the hinge according to any one of claims 1 to 8, and a pivot shaft in the hinge. (10) provides a foldable electronic device characterized in that the rotary seat (30) in the hinge is fixed to the cover (91) while being fixed to the main body (92).

  The invention of claim 11 of the present application is a foldable electronic device having a cover (91) and a main body (92), comprising the hinge according to any one of claims 9, and a fixed seat ( 20) provides a foldable electronic device characterized in that the rotary seat (30) in the hinge is fixed to the cover (91) while being fixed to the main body (92).

  Since the present invention has the above-described configuration, when the rotary cam is rotated with respect to the fixed cam, the inner peripheral protrusion and the outer peripheral protrusion of the fixed cam move on the corresponding inclined surfaces of the rail in the rotary cam, respectively. Since each slope is literally inclined, the fixed cam moves toward or away from the rotating cam as each projection goes up or down the slope. When moving in the direction of separation, the disc spring unit is pressed by the fixed cam and the disc springs are brought into close contact with each other, so that the frictional force generated in the disc spring unit increases, while the fixed cam approaches the rotating cam. When moving in the direction, the friction force generated in the disc spring unit is reduced. According to this configuration, when opening and closing the cover in the foldable electronic device including the hinge according to the present invention with respect to the main body, the cover can be opened by rotating it to a predetermined position more quickly and easily and quickly. The cover can be closed to the closed position.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, the following Example is only what showed the preferred embodiment of this invention, and the technical scope of this invention is not limited to the following Example itself at all.

  1 is a perspective view of a hinge according to the present invention, FIG. 2 is a partially exploded perspective view of the hinge according to the present invention, and FIG. 3 is an exploded perspective view of a rotating seat and a rotating cam in the hinge according to the present invention. 4 is an exploded perspective view of a rotating cam and a fixed cam in the hinge according to the present invention, FIG. 5 is a perspective view of the rotating cam in the hinge according to the present invention, and FIG. 6 is a rotating cam in the hinge according to the present invention. FIG. 7 is a diagram showing a state in which the hinge according to the present invention is installed in a foldable electronic device, and FIG. 8 is a curve diagram showing the torque required when operating the hinge according to the present invention. 9 to 11 are views showing a state in which the fixed cam in the hinge according to the present invention rotates with respect to the rotating cam.

As shown in FIGS. 1 and 2, the hinge according to the present invention includes a pivot (10), a fixed seat (20), a rotating seat (30), a rotating cam (40), and a fixed cam (50). , A disc spring unit (60), at least one brake washer (70), and a fixing member (80), of which the pivot (10) is a rod having a non-circular cross-sectional shape, A threaded portion (12) is formed in the radial direction near the other end.
The fixed seat (20) is mounted and fixed to one end of the pivot (10) so as to come into contact with the flange (12).
A non-circular center hole (31) is formed in the rotary seat (30), and the rotary seat (30) is mounted on the pivot (10) through the central hole (31).

  As shown in FIGS. 3 and 4, the rotary cam (40) has a disk shape, and a shaft hole (41) is formed through the shaft hole (41) so as to be adjacent to the rotary seat (30). And an annular projection (401) fitted in the center hole (31) of the rotary seat (30) in a radial direction on the surface of the rotary seat (30). Is done.

  An inner rail (42) and an outer rail (43) are formed on a surface of the rotating cam (40) opposite to the rotary seat (30), and the inner rail (42) and the outer rail (43) A first starting end (421) (431) and a second starting end (422) (432) are provided along the radial direction and at a predetermined interval, and the first starting end (421) (431) and the second starting end are provided. Concave grooves (423) and (433) are formed between (422) and (432). Further, the inner peripheral rail (42) and the outer peripheral rail (43) of the rotating cam (40) are respectively directed to the opposite sides from the first starting end (421) (431) and the second starting end (422) (432). First slopes (424) and (434) with gradually increasing thickness are formed, and second slopes (425) with gradually decreasing thickness from the ends (4241) and (4341) of the first slopes (424) and (434). (435) is formed, and third slopes (426) and (436) are formed to gradually increase in thickness from the ends (4251) and (4351) of the respective second slopes (425) and (435). ) (43), planes (427) and (437) are formed between the two third slopes (426) and (436). Moreover, as shown in FIG. 5, each 1st slope (424) in an inner periphery rail (42) is each 1st slope (434) in an outer periphery rail (43), and each 2nd in an inner periphery rail (42). The slope (425) is each second slope (435) in the outer peripheral rail (43), and each third slope (426) in the inner rail (42) is each third slope (436) in the outer rail (43). And the first start end (421) (431) and the second start end (422) (432) of the inner peripheral rail (42) and the outer peripheral rail (43), respectively, of the rotating cam (40). It is provided at an opposing position.

The fixed cam (50) has a disk shape, a non-circular through hole (501) is formed in the fixed cam (50), and the fixed cam (50) is adjacent to the rotating cam (40) via the through hole (501). An inner peripheral projection (51) corresponding to the inner peripheral rail (42) and the outer peripheral rail (43) corresponding to the inner peripheral rail (42) in the radial direction on the surface of the rotating cam (40) are mounted on the pivot (10). An outer peripheral projection (52) is projected.
As shown in FIG. 6, the inner peripheral protrusion (51) is wider than the range between the first start end (421) and the second start end (422) in the inner peripheral rail (42), and the two first inclined surfaces (424). ) Having a bottom surface (510) narrower than the range (420) between the ends (4241) of the outer periphery (4241), and the outer peripheral projection (52) is connected to the first start end (431) and the second start end (432) of the outer periphery rail (43). Having a bottom surface (520) that is wider than the range between (430) and narrower than the range between the ends (4341) of the two first bevels (434). In addition, guide slopes (511) and (521) located on both sides of the bottom surface (510) and (520) are formed on the inner peripheral protrusion (51) and the outer peripheral protrusion (52).

The fixing member (80) is fixed to the other end of the pivot (10). In this embodiment, the fixing member (80) is screwed into the screw portion (11) of the pivot (10). It is a nut.
The disc spring unit (60) has a plurality of disc springs and is mounted on the pivot (10) so as to be adjacent to the fixed cam (50).
The brake washer (70) is mounted on the pivot (10). In the present embodiment, a fixed cam (50) is provided between the flange (12) and the rotary seat (30). A brake washer (70) is installed between the disc spring unit (60) and between the disc spring unit (60) and the fixing member (80).

  As shown in FIGS. 7A and 7B, a hinge according to the present invention is installed between a cover (91) and a main body (92) in a foldable electronic device, and a fixing seat (20) is provided on the main body (92). In addition to being fixed, the rotating seat (30) is fixed to the cover (91), whereby the cover (91) rotates with respect to the main body (92). Then, the fixed cam (50) is driven by the pivot (10) to rotate with respect to the rotating cam (40), and the inner peripheral protrusion (51) and the outer peripheral protrusion (52) of the fixed cam (50) are respectively rotating cams. It moves on the inner rail (42) and the outer rail (43) in (40).

  Since each of the slopes (424, 425, 426, 434, 435, 436) has an inclined shape, the inner peripheral protrusion (51) and the outer peripheral protrusion (52) correspond to the corresponding inclined faces (424, 425, 426) (434, 435, 536), the fixed cam (50) moves in the proximity or separation direction with respect to the rotating cam (40). Among them, when the fixed cam (50) moves away from the rotating cam (40), the disc spring unit (60) is pressed by the fixed cam (50), and each disc spring comes into close contact. The frictional force generated in the disc spring unit (60) increases. On the other hand, when the fixed cam (50) moves in the direction approaching the rotating cam (40), the frictional force generated in the disc spring unit (60) decreases. Therefore, the force required to rotate the cover (91) relative to the body (92), i.e., the torque required to actuate the hinge, is not constant. Hereinafter, a change in torque applied to the hinge when the cover (91) is opened and closed will be described based on the torque curve diagram shown in FIG.

  As shown in FIGS. 9 and 10, when the cover (91) is closed to the main body (92), the inner peripheral protrusion (51) and the outer peripheral protrusion (52) of the fixed cam (50) are respectively rotated cams ( 40) in the corresponding grooves (423) and (433) of the corresponding rails (42) and (43). From this state, when the cover (91) is rotated to the open position with respect to the main body (92), The protrusions (51) and (52) sequentially move from the first inclined surfaces (424) and (434) to the third inclined surfaces (426) and (436). Then, when the inner peripheral protrusion (51) and the outer peripheral protrusion (52) go up the first slope (424) (434), the fixed cam (50) moves in a direction away from the rotating cam (40), and the dish Since the spring unit (60) is pressed to increase the friction force generated in the disc spring unit (60), more torque is required to lift the cover (91).

  As shown in FIG. 11, each protrusion (51) (52) moves over the first slope (424) (434) to the second slope (425) (435), and the second slope (425) (435). Since the friction force generated in the disc spring unit (60) is reduced by moving the fixed cam (50) in the direction approaching the rotating cam (40) when moving down, the cover (91) is fixed more quickly. Further, each protrusion (51) (52) moves beyond the second slope (425) (435) to the third slope (426) (436), and the first projection (51) (52) moves to the third slope (426) (436). When the three slopes (426) and (436) are climbed, the friction force generated in the disc spring unit (60) rises again, so that the cover (91) can be positioned at a predetermined position with respect to the main body (92). it can. When the protrusions (51) move to the planes (427) and (437) beyond the (52) third slopes (426) and (436), the cover (91) rotates 180 degrees to rotate the main body (92 ) And the parallel state.

  When the cover (91) is rotated from the open position to the closed position, the protrusions (51) and (52) are sequentially moved from the third slope (426) and (436) to the first slope (424) and (434). Moving. When the projections (51) and (52) go up the second inclined surfaces (425) and (435), the frictional force generated in the disc spring unit (60) is increased to close the cover (91). Can reduce the momentum. Thereafter, when each of the protrusions (51) (52) moves over the second slope (425) (435) to the first slope (424) (434) and descends the first slope (424) (434), Since the frictional force generated in the disc spring unit (60) is reduced, the cover (91) can be easily and quickly closed to the closed position. At this time, since the cover (91) is close to the main body (92), even if the cover (91) is closed vigorously, it does not hit the main body (92). In addition, the bottom surfaces (510) and (520) of the inner peripheral protrusion (51) or the outer peripheral protrusion (52) are respectively the first starting end (421) (431) and the second starting end (in the corresponding rail (42) (43)). 422) and 432 are wider than the range (420) and (430), the bottom surfaces (510) and (520) of the protrusions (51) and (52) fall into the concave grooves (423) and (433) and are recessed. Since it does not hit the wall surface of the grooves (423) and (433), no unpleasant sound is generated from the hinge when the cover (91) is closed.

  Further, the torque required for operating the hinge can be adjusted by the inclination and length of each of the slopes (424, 425, 426, 434, 435, 436). As shown in FIG. 8, in this embodiment, the torque required to operate the hinge is the maximum value when the cover (91) is opened 10 degrees with respect to the main body (92). 91) is the minimum value when opened 90 degrees with respect to the main body (92).

It is a perspective view of a hinge concerning the present invention. It is a partial exploded perspective view of a hinge concerning the present invention. It is a disassembled perspective view of the rotation seat and rotation cam in the hinge which concerns on this invention. It is a disassembled perspective view of the fixed cam and rotation cam in the hinge which concerns on this invention. It is a perspective view of the rotating cam in the hinge which concerns on this invention. It is a perspective view of the rotating cam in the hinge which concerns on this invention. It is a side view showing the state where the hinge concerning the present invention was installed in the foldable electronic device. It is a perspective view showing the state where the hinge concerning the present invention was installed in the foldable electronic device. It is a curve figure showing the torque required at the time of operation of the hinge concerning this invention. 9-11 is a figure which shows the state which the fixed cam in the hinge based on this invention rotates with respect to a rotation cam, respectively. 9-11 is a figure which shows the state which the fixed cam in the hinge based on this invention rotates with respect to a rotation cam, respectively. 9-11 is a figure which shows the state which the fixed cam in the hinge based on this invention rotates with respect to a rotation cam, respectively.

DESCRIPTION OF SYMBOLS 10 ... Pivot, 11 ... Screw part, 12 ... Gutter part, 20 ... Fixed seat, 30 ... Rotating seat, 31 ... Center hole, 40 ... Rotating cam, 401 ... Circular protrusion, 41 ... Shaft hole, 42 ... Inner rail, 421 ... first start end, 422 ... second start end, 423 ... concave groove, 424 ... first slope, 4241 ... end, 425 ... second slope, 4251 ... end, 426 ... third slope, 427 ... plane, 43 ... outer periphery Rail, 431 ... first start end, 432 ... second start end, 433 ... concave groove, 434 ... first slope, 4341 ... end, 435 ... second slope, 4351 ... end, 436 ... third slope, 437 ... plane, 50 DESCRIPTION OF SYMBOLS ... Fixed cam, 501 ... Through-hole, 51 ... Inner peripheral protrusion, 510 ... Bottom surface, 511 ... Guide slope, 52 ... Outer protrusion, 520 ... Bottom surface, 521 ... Guide slope, 60 ... Belleville spring unit, 70 ... Braking washer, 80 ... fixing member, 91 ... cover, 9 ... body

Claims (11)

The pivot (10),
A rotating seat (30) rotatably mounted on the pivot (10);
Inner rails (1) that are mounted on the pivot (10) and fixed to the rotary seat (30) and have first start ends (421) and (431) along the radial direction on the surface opposite to the rotary seat ( 42) and the outer peripheral rail (43) are formed, a rotating cam (40) having a disk shape,
An inner peripheral projection (51) that is fixed to the pivot (10) so as to be adjacent to the rotary cam (40) and that corresponds to the inner peripheral rail (42) along the radial direction on the surface of the rotary cam. And a fixed cam (50) having a disc shape, on which the outer peripheral rail (43) and a corresponding outer peripheral projection (52) project.
A disc spring unit (60);
A fixing member (80) fixed to the other end of the pivot (10) in order,
A first inclined surface (424) having a thickness gradually increasing from the first starting end (421) (431) toward the one side on the inner peripheral rail (42) and the outer peripheral rail (43) in the rotating cam (40), respectively. 434) is formed, and second slopes (425) and (435) having a thickness gradually decreasing from the ends (4241) and (4341) of the first slopes (424) and (434) are formed. (425) Hinge characterized by forming third slopes (426) (436) with increasing thickness from the ends (4251) (4351) of (435).   The inner peripheral rail (42) and the outer peripheral rail (43) are provided with second starting ends (422) and (432) along the radial direction, and the second starting ends (422) and (432) are arranged in the first direction toward the one side. A slope (424) (434), a second slope (425) (435), and a third slope (426) (436) are sequentially formed, and two second slopes in the inner rail (42) are formed. A plane (427) is formed between the three slopes (426), and a plane (437) is formed between the two third slopes (436) of the outer peripheral rail (43). Item 2. The hinge according to item 1.   First inner ends (421) and (431) of the inner peripheral rail (42) and the outer peripheral rail (43) are respectively provided at positions facing the rotating cam (40), and the inner peripheral rail (42) and the outer peripheral rail ( 43. The hinge according to claim 2, wherein the second starting ends (422) and (432) in 43) are provided at positions facing the rotating cam (40), respectively.   A concave groove (423) is formed between the first start end (421) and the second start end (422) in the inner peripheral rail (42), and the first start end (431) in the outer peripheral rail (43). The hinge according to claim 3, wherein a concave groove (433) is formed between the second starting end (432). The inner peripheral protrusion (51) is wider than a range (420) between the first start end (421) and the second start end (422) of the inner peripheral rail (42), and 2 on the first inclined surface (424). Having a bottom surface (510) narrower than the range between the two ends (4241);
The outer protrusion (52) is wider than a range (430) between the first start end (431) and the second start end (432) of the outer periphery rail (43), and has two end points on the first slope (434). The hinge of claim 4 having a bottom surface (520) narrower than the range between (4341).   The hinge according to claim 5, wherein guide slopes (511) (521) located on both sides of the bottom surface (510) (520) are formed on the inner peripheral protrusion (51) and the outer peripheral protrusion (52). . The pivot (10) is a rod having a non-circular cross-sectional shape,
A non-circular through hole (501) is formed in the fixed cam (50), and the fixed cam (50) is mounted on the pivot (10) through the through hole (501). The hinge according to any one of claims 1 to 6. A central hole (31) is formed in the rotary seat (30), and the rotary seat (30) is attached to the pivot (10) through the central hole (31).
An annular protrusion (401) fitted into the center hole (31) of the rotary seat (30) is provided in a radial direction on the surface of the rotary cam (40) on the rotary seat (30) side. The hinge according to claim 7. Further, a fixed seat (20) is fixed to one end of the pivot (10),
9. The hinge according to claim 8, wherein a flange (12) located between the rotary seat (30) and the fixed seat (20) is provided on the pivot (10) in a radial direction.   A foldable electronic device having a cover (91) and a body (92), comprising a hinge according to any one of claims 1 to 8, wherein the pivot (10) in the hinge is connected to the body (92). ) And the rotary seat (30) in the hinge is fixed to the cover (91).   A foldable electronic device having a cover (91) and a main body (92), comprising the hinge according to any one of claims 9, wherein the fixing seat (20) in the hinge is the main body (92). The foldable electronic device is characterized in that the rotary seat (30) in the hinge is fixed to the cover (91).

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