CN201705801U - Pivot device and interference assembly - Google Patents

Abstract

An interference assembly, comprising a cam part and a concave wheel part which are rotatably matched with each other, the cam part protrudes with a first protrusion and a second protrusion, and the concave wheel part is provided with a through hole and an annular belt-shaped The sliding area surrounding the through hole, the sliding area is oppositely provided with a first recessed portion adjacent to the through hole and a second recessed portion adjacent to the periphery of the concave wheel member, and the cam member is respectively recessed on the inner and outer sides of the sliding area There is an inner groove and an outer groove, the inner groove extends from the opposite ends of the first recess along the edge of the through hole and gradually becomes narrower, and the outer groove extends from the opposite ends of the second recess along the concave wheel The peripheral edge of the component extends and gradually narrows, and the first and second protrusions are engaged with the first and second recesses, and can slide out to abut against the sliding area. A hinge includes the above-mentioned interference assembly. Both the hinge and the interference component can control the friction force between the cam part and the concave wheel part through the change of the contact area between the first and second protrusions and the sliding area, so as to achieve the purpose of turning on the heavy and turning off the light.

Description

Hubs and interference components

technical field

The utility model relates to a hinge device and an interference assembly.

Background technique

The hinge is generally installed between the upper cover and the base of the flip device, so that the upper cover can be opened and closed relative to the base. The hinge generally includes a shaft and a shaft sleeve, the shaft and the shaft sleeve are respectively fixed to the upper cover and the base, and the shaft sleeve is rotatably sleeved on the shaft so that the upper cover can rotate relative to the base. The frictional force between the shaft sleeve and the shaft can make the upper cover be positioned at the desired position arbitrarily. Generally speaking, when opening the upper cover, it is necessary to prevent the overturning angle of the upper cover from being too large to damage the hinge; when closing the upper cover, it is necessary to use a small external force to avoid the upper cover hitting the base. However, the existing hinges can only provide the same frictional force when opening or closing the upper cover, so the user needs to provide additional force to control when opening or closing, which brings inconvenience to the user.

Utility model content

In view of the above, it is necessary to provide a hinge device and an interference assembly capable of opening and closing the heavy and light.

A hinge device, comprising a fixed part, a rotating shaft fixed on the fixed part, a rotating part, a shrapnel group, an interference component and a fastener, the rotating shaft includes a shaft, the rotating part and The shrapnel groups are all rotatably sleeved on the shaft, and the fastener is fixed at the end of the shaft. The interference assembly includes a cam and a concave wheel that are rotatably matched to each other. The cam is fixed On the shaft rod, the cam member is provided with a first protrusion and a second protrusion, and the concave wheel member is provided with a through hole and a sliding area in the shape of an annular band surrounding the through hole, so The sliding area is oppositely provided with a first recessed portion adjacent to the through hole and a second recessed portion adjacent to the periphery of the concave wheel member, and the cam member is respectively recessed with an inner groove and an inner groove on the inner and outer sides of the sliding area. An outer groove, the inner groove extends from the opposite ends of the first recess along the edge of the through hole and gradually narrows, the outer groove extends from the opposite ends of the second recess along the The periphery of the concave wheel extends and gradually narrows, and the first and second projections are slidingly engaged with the first and second recesses. When the rotating member rotates around the fixing member, The first and second protrusions slide out from the first and second recesses and abut against the sliding area.

Preferably, the centers of the sliding area, the inner groove and the outer groove are all deviated from the center of the through hole.

Preferably, a fixing hole is provided in the middle of the cam member to be fixedly sleeved on the shaft, the first protrusion surrounds and is adjacent to the edge of the fixing hole, and the second protrusion surrounds and is far away from the shaft. the above fixing holes.

Preferably, the rotating member is provided with a fixing hole, and the concave wheel member protrudes in the axial direction with a tenon, and the tenon is fixed in the fixing hole.

An interference assembly, comprising a cam part and a concave wheel part which are rotatably matched with each other, the cam part protrudes with a first protrusion and a second protrusion, and the concave wheel part is provided with a through hole and an annular A belt-shaped sliding area surrounding the through hole, the sliding area is oppositely provided with a first concave portion adjacent to the through hole and a second concave portion adjacent to the periphery of the concave wheel member. The inner and outer sides of the sliding area are respectively recessed with an inner groove and an outer groove. The inner groove extends from opposite ends of the first recess along the edge of the through hole and gradually narrows. The outer groove The opposite ends of the second concave part extend along the periphery of the concave wheel and gradually become narrower, and the first and second protrusions are slidably engaged with the first and second concave parts. When the cam member and the concave wheel member rotate relative to each other, the first and second protrusions slide out from the first and second recesses and abut against the sliding area.

Preferably, the centers of the sliding area, the inner groove and the outer groove are all deviated from the center of the through hole.

Preferably, a fixing hole is provided in the middle of the cam member, the first protrusion surrounds and is adjacent to the edge of the fixing hole, and the second protrusion surrounds and is away from the fixing hole.

Compared with the prior art, the above-mentioned hinge device utilizes the change of the contact area between the first and second projections of the cam member and the sliding area of the concave wheel member to control the relationship between the cam member and the concave wheel member. The friction force between them, in order to achieve the purpose of opening heavy and closing light.

Description of drawings

The utility model will be further described below in conjunction with specific embodiments with reference to the accompanying drawings.

Fig. 1 is a three-dimensional exploded view of a preferred embodiment of the hinge device of the present invention, and the hinge device includes an interference component.

Fig. 2 is a view from another direction of Fig. 1 .

FIG. 3 is an enlarged view of the interference assembly in FIG. 1 , the interference assembly includes a cam member and a concave wheel member.

Fig. 4 is a perspective combined view of Fig. 1 .

Fig. 5 is a sectional view along line V-V of Fig. 4 .

FIG. 6 is a cross-sectional view of the cam member and the concave wheel member in FIG. 5 rotating at a certain angle relative to each other.

Description of main component symbols

Shaft 10

Shaft 12

Fixed end 14

Crown 16

Fixing parts 20

Connecting part 22

Through-hole 220, 310, 662

Fixed part 24

Mounting hole 26

Rotating piece 30

Locking Department 31

Pivot joint 32

Pivot hole 320

Fixing hole 322, 620

Gasket 40

Perforation 42

Shrapnel Group 50

Round hole 52

Interference components 60

Cam parts 62

First bump 622

Second bump 624

Concave parts 66

Lubricating surface 660

Sliding area 661

Tenon 663

Storage Tank 664

Inner tank 666

Outer tank 667

The first depression 668

The second depression 669

Fasteners 70

Detailed ways

Please refer to Fig. 1, Fig. 2 and Fig. 4 at the same time. The preferred embodiment of the utility model hinge device includes a rotating shaft 10, a fixing part 20, a rotating part 30, a plurality of spacers 40 fixed on the rotating shaft 10, a set of The shrapnel group 50 , an interference component 60 and a fastener 70 on the rotating shaft 10 . In this embodiment, the fastener 70 is a nut.

The shaft 10 includes a shaft 12 , a fixed end 14 and a crown 16 disposed between the shaft 12 and the fixed end 14 . The shaft 12 has a cross-sectional shape of a double “D” shape, and a screw thread is provided at the end thereof, so as to be screwed with the fastener 70 .

The fixing member 20 includes a connecting portion 22 and a fixing portion 24 vertically extending from one side of the connecting portion 22 . The connecting portion 22 is provided with a plurality of through holes 220 for passing through screws or rivets, so as to fix the fixing member 20 to a base of a clamshell device, such as the main body of a notebook computer (not shown). The fixing portion 24 defines a through non-circular assembly hole 26 .

The rotating member 30 includes a locking portion 31 and a pivot portion 32 connected to the locking portion 31 . The locking portion 31 is provided with a plurality of through holes 310 for passing through screws or rivets, so as to fix the rotating member 30 on the top cover of a flip device, such as the screen of a notebook computer. The pivoting portion 32 defines a pivoting hole 320 and a fixing hole 322 extending therethrough. The pivot hole 320 allows the shaft 12 of the shaft 10 to pass through, so that the rotating member 30 is rotatably sleeved on the shaft 12 , and a washer 40 is interposed between the pivot portion 32 and the crown 16 of the shaft 10 .

A through hole 42 is defined in the middle of each spacer 40 . The through-holes 42 are double “D”-shaped to securely sleeve the washer 40 on the shaft 12 .

The shrapnel set 50 includes several elastic pieces, and a round hole 52 is provided in the middle of the shrapnel set 50 for the shaft 12 of the rotating shaft 10 to freely pass through.

Please refer to FIG. 3 , the interference component 60 includes a cam component 62 and a concave wheel component 66 that cooperate with each other. The cam member 62 and the concave wheel member 66 are relatively rotatable.

The cam member 62 is disc-shaped, and a fixing hole 620 is defined in the middle thereof. The fixing holes 620 are in double “D” shape for fixing the cam member 62 on the shaft 12 . An end surface of the cam member 62 facing the concave wheel member 66 is oppositely provided with an arc-shaped first protrusion 622 and an arc-shaped second protrusion 624 surrounding the fixing hole 620 . The first protrusion 622 is adjacent to the edge of the fixing hole 620 . The second protrusion 624 is away from the fixing hole 620 and adjacent to the periphery of the cam member 62 .

The recessed wheel 66 is disc-shaped, and a through hole 662 is formed in the center along the axial direction for the shaft 12 of the rotating shaft 10 to pass through. The cam member 66 includes a lubricating surface 660 facing away from the cam member 62 . The lubricating surface 660 is provided with a plurality of receiving grooves 664 for accommodating lubricating oil, thereby increasing the lubricating effect. The lubricating surface 660 faces the pivot portion 32 of the rotating member 30 , and a washer 40 is interposed between the pivot portion 32 and the pivot portion 32 . The concave wheel member 66 is provided with a convex part (not labeled) protruding outward from the circumference, and a tenon 663 protrudes from the end of the convex part along the axial direction, and the end of the tenon 663 protrudes from the lubricating surface 660 . The tenon 663 engages with the fixing hole 322 of the rotating member 30 , so that the concave wheel 66 can move with the rotating member 30 .

An annular sliding area 661 protrudes from the end face of the concave wheel 66 facing the cam member 62. The sliding area 661 does not coincide with the center of the through hole 662, that is, the sliding area 661 is eccentrically arranged relative to the through hole 662. The sliding area 661 is in the shape of an annular band with an uneven width. The sliding area 661 is oppositely provided with a first recessed portion 668 and a second recessed portion 669 surrounding the through hole 662 . The first concave portion 668 is close to the edge of the through hole 662 . The concave wheel 66 forms an annular inner groove 666 inside the sliding area 661 , and the inner groove 666 extends from two opposite ends of the first concave portion 668 along the edge of the through hole 662 and becomes narrower gradually. The second concave portion 669 is close to the periphery of the concave wheel 66 . The concave wheel 66 forms an annular outer groove 667 on the outer side of the sliding area 661 , and the outer groove 667 extends from opposite ends of the second concave portion 669 along the periphery of the concave wheel 66 and gradually narrows. Thus, the first recessed portion 668 is located at the largest width of the sliding region 661 and adjacent to the largest width of the inner groove 666 . The second concave portion 669 is located at the smallest width of the sliding area 661 and adjacent to the largest width of the outer groove 667 . The centers of the inner groove 666 and the outer groove 667 are deviated from the center of the through hole 662 . The first and second protrusions 622 , 624 of the cam member 62 can be received in the first and second concave portions 668 , 669 of the concave wheel member 66 , respectively.

Please refer to FIG. 4 and FIG. 5 together. During assembly, the fixed end 14 of the rotating shaft 10 is fixed to the assembly hole 26 of the fixing member 20 , so that the rotating shaft 10 and the fixing member 20 are fixed to each other. The shaft 12 of the rotating shaft 10 passes through the through hole 42 of one of the gaskets 40, the pivot hole 320 of the rotating member 30, the through hole 42 of the other gasket 40, the through hole 662 of the concave wheel member 66 of the interference assembly 60, The fixing hole 620 of the cam member 62 of the interference assembly 60 , the round hole 52 of the shrapnel set 50 and the through hole 42 of other gaskets 40 . The fastener 70 is fixed on the end of the shaft 12 to prevent the washer 40 , the shrapnel assembly 50 , the interference component 60 and the rotating member 30 from falling off from the shaft 12 . At this time, the tenon 663 of the concave wheel 66 engages with the fixing hole 322 of the rotating member 30 , so that the concave wheel 66 can move with the rotating member 30 . The first and second protrusions 622 , 624 of the cam member 62 of the interference assembly 60 are respectively accommodated in the first and second recesses 668 , 669 of the concave wheel member 66 .

Please refer to FIG. 6 in conjunction with FIG. 6 . When the screen of the notebook computer needs to be flipped open, the rotary member 30 is rotated to drive the concave wheel member 66 of the interference assembly 60 to rotate relative to the cam member 62 . At this time, the first protrusion 622 of the cam member 62 of the interference assembly 60 slides out from the first concave portion 668 of the concave wheel member 66 to the sliding area 661 of the concave wheel member 66 and partially covers the inner portion of the concave wheel member 66 The groove 666 ; the second protrusion 624 of the cam member 62 also slides out from the second concave portion 669 of the concave wheel member 66 to the sliding area 661 of the concave wheel member 66 , and partially covers the outer groove 667 of the concave wheel member 66 .

Continue to rotate the rotary member 30 , both the first and second protrusions 622 , 624 continue to slide along the sliding area 661 of the concave wheel member 66 . At this time, because the width of the inner groove 666 and the outer groove 667 gradually decreases, the contact area between the first and second protrusions 622 , 624 and the sliding area 661 of the concave wheel 66 gradually increases. Therefore, the frictional force between the first and second protrusions 622 , 624 and the concave wheel 66 gradually increases, causing the user to exert more and more force when opening the screen of the notebook computer. Obviously, when the screen of the notebook computer needs to be closed, the rotary member 30 is rotated in the opposite direction, and the first and second protrusions 622, 624 slide along the sliding area 661 of the concave wheel member 66 respectively, and are finally accommodated in the first and second protrusions. Two depressions 668,669. During this process, the contact area between the first and second protrusions 622 , 624 and the sliding area 661 of the concave wheel 66 gradually decreases. Therefore, the frictional force between the first and second protrusions 622 , 624 and the concave wheel 66 decreases gradually, and the force of the user becomes smaller and smaller.

Claims (7)

1. pivot device, comprise a fixed block, one is fixed in the rotating shaft of described fixed block, one revolving part, one shell fragment group, one interference component and a fastening piece, described rotating shaft comprises an axostylus axostyle, described revolving part and the equal rotating sleeve of shell fragment group are located at described axostylus axostyle, and described fastening piece is fixed in the end of described axostylus axostyle, it is characterized in that: described interference component comprises a cam member and a recessed part of taking turns that is rotatably assorted mutually, described cam member is fixed in described axostylus axostyle, described cam member is convexly equipped with one first projection and one second projection, the described recessed part of taking turns is provided with the banded ringwise sliding area around described through hole of a through hole and, described sliding area is provided with first depressed part and contiguous described recessed second depressed part of taking turns the periphery of part of a contiguous described through hole relatively, described cam member caves in respectively in the interior outside of described sliding area an inside groove and a water jacket, described inside groove is extended along the edge of described through hole by the opposite end of described first depressed part and narrows down gradually, described water jacket is also narrowed down along the described recessed periphery extension of taking turns part gradually by the opposite end of described second depressed part, described first and second projection is slidingly fastened in described first and second depressed part, when described revolving part rotated around described fixed block, described first and second projection skidded off in described first and second depressed part and described sliding area butt.

2. pivot device as claimed in claim 1 is characterized in that: the center that described through hole is all departed from the center of described sliding area, described inside groove and described water jacket.

3. pivot device as claimed in claim 2, it is characterized in that: the middle part of described cam member is provided with a fixed hole, this cam member fixed cover is located at described axostylus axostyle, described first projection around and the edge of contiguous described fixed hole, described second projection around and away from described fixed hole.

4. pivot device as claimed in claim 1 is characterized in that: described revolving part is provided with a fixed hole, and the described recessed part of taking turns has protruded out a trip vertically, and described trip is fixed in described fixed hole.

5. interference component, comprise the cam member and the recessed part of taking turns that are rotatably assorted mutually, described cam member is convexly equipped with one first projection and one second projection, it is characterized in that: the described recessed part of taking turns is provided with the banded ringwise sliding area around described through hole of a through hole and, described sliding area is provided with first depressed part and contiguous described recessed second depressed part of taking turns the periphery of part of a contiguous described through hole relatively, described cam member caves in respectively in the interior outside of described sliding area an inside groove and a water jacket, described inside groove is extended along the edge of described through hole by the opposite end of described first depressed part and narrows down gradually, described water jacket is also narrowed down along the described recessed periphery extension of taking turns part gradually by the opposite end of described second depressed part, described first and second projection is slidingly fastened in described first and second depressed part, when described cam member and the described recessed part of taking turns when relatively rotating, described first and second projection skids off in described first and second depressed part and described sliding area butt.

6. interference component as claimed in claim 5 is characterized in that: the center that described through hole is all departed from the center of described sliding area, described inside groove and described water jacket.

7. interference component as claimed in claim 5 is characterized in that: the middle part of described cam member is provided with a fixed hole, described first projection around and the edge of contiguous described fixed hole, described second projection around and away from described fixed hole.

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