CN213064311U

CN213064311U - Single-shaft pivot device

Info

Publication number: CN213064311U
Application number: CN202021966136.5U
Authority: CN
Inventors: 张瑞鸿; 张信忠
Original assignee: Jarllytec Co Ltd
Current assignee: Jarllytec Co Ltd
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2021-04-27
Anticipated expiration: 2030-09-10

Abstract

The utility model provides a single-shaft pivot device, wherein a seat body is connected with a first machine body, one end of a sliding part is connected with a pair of guide rails of the seat body in a relatively sliding way, a rotating shaft can rotatably penetrate through the other end of the sliding part, and the rotating shaft is connected with a second machine body; one end of a torsion piece is connected with the sliding piece, and a first friction torsion part at the other end of the torsion piece is sleeved with the rotating shaft so as to generate rotation friction torsion; the linkage assembly comprises a cam and a connecting rod, wherein the cam is connected with one end of the rotating shaft, one end of the connecting rod is sleeved with a convex part of the cam, and the other end of the connecting rod is pivoted and positioned on the base body; therefore, when the second machine body is rotated and opened relative to the first machine body, the sliding piece can move in a shorter horizontal distance, and meanwhile, larger torsion is generated to form effective support.

Description

Single-shaft pivot device

Technical Field

The present invention relates to a single-axis pivot device, and more particularly to a single-axis pivot device that is assembled between two bodies and allows the bodies to move horizontally relative to each other when the bodies are rotated and opened.

Background

The conventional hinge device mainly comprises two rotating members which are coaxially pivoted, and the rotating members are respectively connected with an upper cover and a base of an electronic product such as a notebook computer, so that one end of the upper cover can be relatively rotated and opened on one side of a convex part of the base. However, when the upper cover rotates relative to the base and is opened by an angle, the upper cover contacts the protrusion of the base to form interference, and the upper cover cannot be opened to a preset maximum opening angle. However, this will cause the display screen to be pulled away, and the structural distance will also cause a visual defect. Therefore, it is a difficult problem to overcome how to reduce the structural distance between the upper cover and the protruding portion of the base while reducing the interference phenomenon caused by the large angle of the upper cover.

For example, the pivot device with translation function disclosed in taiwan new bulletin No. M597560, the sliding mechanism disclosed in No. M468874, and the electronic device with the sliding mechanism respectively provide a solution. The patent publication of No. M597560 with a translation function mainly includes a base including a plurality of vertical racks horizontally provided with sliding slots, a first accommodating groove and a second accommodating groove are formed between the vertical racks, and the second accommodating groove is provided with a rack; the connecting shaft mechanism comprises a first shaft lever and a second shaft lever which are arranged in each sliding groove in a penetrating mode, the first shaft lever is provided with a driving gear located in the first accommodating groove, the second shaft lever is provided with a first driven gear located in the first accommodating groove and meshed with the driving gear, and a second driven gear located in the second accommodating groove and meshed with the rack; when the first shaft rod rotates, the driving gear also rotates in the same direction and drives the first driven gear, the second shaft rod and the second driven gear to rotate in the same direction, so that the second driven gear moves backwards or forwards along the rack of the base and drives the first shaft rod and the second shaft rod to synchronously translate in the sliding grooves.

The first bulletin No. M468874 is mainly to pivotally connect two bodies of an electronic device by a sliding mechanism, so that a second body of the electronic device can be opened or closed relative to the first body, and the two sliding units of the sliding mechanism cooperate with each other to elastically adjust the rotation of a hinge and the sliding of a sliding base, thereby facilitating stable rotation and synchronous sliding, and gradually moving the position of the hinge, so as to facilitate adjustment of the position of the center of gravity of the second body, thereby facilitating the electronic device to achieve the overall thinning effect, and further facilitating a user to operate the second body to open or close with one hand. Another taiwan invention publication I633413 discloses a portable electronic device, wherein when a second body (e.g., a screen) rotates relative to a first body (e.g., a main body) via a rotation shaft, the rotation shaft and the second body are pushed by the synchronous movement of the connecting rod and the cam, so that the second body and the first body move relative to each other.

By the structure, the structure space between the upper cover (the second machine body) and the boss of the base (the first machine body) can be reduced, and the interference phenomenon generated by the large angle of the lifting of the upper cover can be reduced. However, the bulletin No. M597560 and the bulletin No. M468874 both adopt a double-sliding structure, and there is still room for further efforts in reducing the structural pitch; in the case of the first application I633413, when the second body rotates relative to the first body, the second body is not convenient to use due to the lack of a torsion element for effectively supporting the weight of the upper cover and the base, and a large force is required to be applied when the second body is opened or closed.

SUMMERY OF THE UTILITY MODEL

In view of the above, in order to provide a structure different from the prior art and improve the above disadvantages, the inventor has experienced many years and has continuously researched and developed the invention.

An object of the utility model is to provide a unipolar pivot ware, pivot ware that can solve among the prior art adopts two sliding structure, can't further reduce the structure interval between an organism and another organism bellying, and lack the weight of effectual torsion structure in order to support upper cover and base, cause the problem of inconvenient use, and the structure that can adopt two slide rails of interlock subassembly collocation is in order to replace the biaxial hinge structure of preceding case, when an organism rotates with the wide-angle for another organism, can let the slider more shorten horizontally displacement, let the unipolar produce bigger torsion in order to form effectual support simultaneously, let the more facilitate the use operation of user.

To achieve the above object, the present invention provides a single-shaft pivot device, which comprises a base, a sliding member, a torsion member and a linkage member. Wherein, the base body is connected with a first machine body and is provided with a pair of guide rails; one end of the sliding part is connected with the pair of guide rails in a relatively sliding mode, a rotating shaft can rotatably penetrate through the other end of the sliding part, and the rotating shaft is connected with a second machine body; one end of the torsion piece is connected with the sliding piece, the other end of the torsion piece is provided with a first friction torsion part, and the first friction torsion part is sleeved with the rotating shaft and is used for generating rotation friction torsion; the linkage assembly comprises a cam and a connecting rod, the cam is connected with one end of the rotating shaft and is provided with a convex part; one end of the connecting rod is connected with the convex part, and the other end of the connecting rod is pivoted and positioned on the seat body.

When the seat is implemented, the seat body is provided with a first side plate and a second side plate which are parallel to each other, a hollow groove is formed between the first side plate and the second side plate, the pair of guide rails are positioned in the hollow groove, and two ends of the pair of guide rails are respectively connected with the first side plate and the second side plate.

When the positioning device is used, the first side plate is provided with a pair of first positioning holes, the second side plate is provided with a pair of second positioning holes, the pair of guide rails comprises a first rod and a second rod which are parallel to each other, and two ends of the first rod and two ends of the second rod are respectively positioned in the pair of first positioning holes and the pair of second positioning holes.

When the sliding device is used, one end of the sliding part is provided with a pair of through holes, and the first rod and the second rod respectively penetrate through the through holes so that the sliding part can be connected with the pair of guide rails in a relatively sliding mode.

When the seat is implemented, the seat body is further provided with a third side plate which is vertical to the first side plate and the second side plate, and the third side plate is provided with a limiting groove for accommodating the other end of the limiting connecting rod.

When the device is implemented, the other end of the sliding piece is provided with a pair of lugs with intervals, and the lugs are respectively provided with a pivot hole for the rotating shaft to rotatably pass through respectively; an embedding groove is arranged between the pair of lugs, and one end of the torsion piece is provided with an embedding part which is embedded in the embedding groove and used for connecting the torsion piece with the sliding piece.

When the cam is used, one end of the rotating shaft is a cylinder with two parallel surfaces, a through hole penetrates through the two parallel surfaces, one end of the cam is provided with two wing parts extending axially, the two wing parts clamp the two parallel surfaces at one end of the rotating shaft, and a first pin penetrates through the two wing parts and the through hole to connect the cam with one end of the rotating shaft.

When the cam is implemented, the convex part of the cam further comprises a second pin, the convex part is provided with a radial slot, the second pin axially penetrates through the radial slot, and one end of the connecting rod is sleeved with the second pin; one end of the connecting rod is provided with a second friction torsion part which is sleeved with the second pin for generating rotation friction torsion.

In order to facilitate a deeper understanding of the present invention, it will be described in detail later.

Drawings

FIG. 1 is an exploded view of the components of the preferred embodiment of the present invention;

FIG. 2 is a schematic perspective view of a preferred embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of a preferred embodiment of the present invention;

fig. 4 is a schematic cross-sectional view of a preferred embodiment of the present invention in a first stage of inverted deployment;

fig. 5 is a perspective view of the preferred embodiment of the present invention in a first stage of inverted deployment;

FIG. 6 is a schematic cross-sectional view of the preferred embodiment of the present invention in a second stage of inverted deployment;

fig. 7 is a perspective view of the second stage of the present invention when the second stage is turned and unfolded.

Description of the reference numerals

Single-shaft pivot device 1 seat body 2

First positioning hole 211 of first side plate 21

Second positioning hole 221 of second side plate 22

Third side plate 23 limiting groove 231

Hollowed-out groove 25 of fourth side plate 24

First rod 26 and second rod 27

Guide rail 28 slider 3

Through-hole 31 lug 32

Pivot hole 321 embedding groove 33

Torsion piece 4 and torsion piece 41

First friction torsion portion 42 engagement portion 43

Linkage assembly 5 cam 51

Wing 511 notch 512

Convex part 513 radial slot 514

Second pin 515 connecting rod 52

Second friction torsion portion 521 round rod 522

Parallel surface 61 of rotating shaft 6

Through hole 62 first pin 63

First body 9 boss 91

And a second body 92.

Detailed Description

Referring to fig. 1 to 3, a single-shaft hinge device 1 according to a preferred embodiment of the present invention mainly includes a base 2, a sliding member 3, a torsion member 4, a linkage assembly 5 and a rotating shaft 6. The base body 2 is connected to one side of a protruding part 91 of a first body 9, and the rotating shaft 6 is connected to a second body 92, when in use, the first body 9 is a base of a notebook computer like electronic product, and the second body 92 is an upper cover with a screen; therefore, when the upper cover is opened and closed in a rotating manner relative to the base, the sliding part 3 can move relative to the base body 2 at a short horizontal distance by the driving of the linkage assembly 5, and meanwhile, a large torsion force is generated by the connection of the torsion part 4 and the rotating shaft 6, so that the second machine body 92 is effectively supported to generate a free stagnation effect.

The base body 2 is a rectangular frame, and includes a group of parallel first side plates 21 and second side plates 22, and another group of parallel third side plates 23 and fourth side plates 24 perpendicular to the first side plates 21 and the second side plates 22, and the four side plates enclose a square hollow groove 25. A pair of first positioning holes 211 horizontally spaced are formed in the plate surface of the first side plate 21, and the two first positioning holes 211 respectively penetrate through the plate surface of the first side plate 21; the second side plate 22 has a pair of second positioning holes 221 horizontally spaced from each other, and the third side plate 23 has a strip-shaped limiting groove 231 with an upper opening. A first rod 26 and a second rod 27 respectively pass through the two first positioning holes 211 and then pass through the two second positioning holes 221, so that two ends of the first rod 26 and two ends of the second rod 27 are respectively positioned and connected to the pair of first positioning holes 211 and the pair of second positioning holes 221, and simultaneously the first rod 26 and the second rod 27 are parallel to the hollow groove 25, and in the implementation, the first rod 26 and the second rod 27 are combined into a pair of guide rails 28.

The sliding member 3 is a rectangular block, and a pair of through holes 31 are formed at the bottom end of the rectangular block, and the first rod 26 and the second rod 27 respectively pass through the two through holes 31, so that the sliding member 3 can be connected with the first rod 26 and the second rod 27 in a relatively sliding manner. The top end of the sliding member 3 is provided with a pair of spaced lugs 32, each of the two lugs 32 has a pivot hole 321, the two pivot holes 321 are located on the same axis, and the rotating shaft 6 sequentially passes through the two pivot holes 321 to rotate in place relative to the sliding member 3. Between the two lugs 32 of the slider 3 there is an elongated engagement groove 33, the two ends of the engagement groove 33 contacting the two lugs 32 respectively. The torsion member 4 is formed by stacking a plurality of torsion sheets 41, the top end of the torsion member 4 is provided with a first friction torsion part 42 with a C-shaped cross section, and the first friction torsion part 42 is sleeved with the rotating shaft 6 to generate a rotation friction torsion; the bottom end of the torsion piece 4 is provided with an elongated embedding part 43, the shape of the embedding part 43 is matched with the shape of the embedding groove 33, so that the embedding part 43 can be movably embedded with the embedding groove 33, the torsion piece 4 is connected with the sliding piece 3, and the number of the torsion pieces 41 can be rapidly increased or reduced according to different required torsion.

The linking component 5 includes a cam 51 and a connecting rod 52, one end of the cam 51 has two axially extending wings 511, a slot 512 is formed between the two wings 511 to accommodate and clamp one end of the rotating shaft 6, one end of the rotating shaft 6 is a cylinder with two parallel surfaces 61, the two parallel surfaces 61 are penetrated by a through hole 62, and after a first pin 63 passes through the two wings 511 and the through hole 62, the cam 51 can be connected with one end of the rotating shaft 6. Cam 51 also has a lug 513, lug 513 having a radial slot 514, a second pin 515 passing axially through radial slot 514; the top end of the connecting rod 52 has a second friction torsion portion 521 with a C-shaped cross section, and the second friction torsion portion 521 is sleeved on the second pin 515, so that friction torsion is generated when the top end of the connecting rod 52 rotates relative to the second pin 515; the bottom end of the connecting rod 52 is pivotally connected by a round rod 522, so that the bottom end of the connecting rod 52 is received and limited in the limiting groove 231 of the third side plate 23.

Therefore, as shown in fig. 1, 4 and 5, at the initial stage of opening the second body 92, for example, 0 to 85 degrees, the rotation shaft 6 rotates to drive the cam 51 to rotate, and then the protrusion 513 of the cam 51 drives the top end of the connecting rod 52, so that the connecting rod 52 swings in the limiting groove 231 of the seat body 2, that is, the lower half portion of the sliding member 3 is limited in the hollow groove 25 of the seat body 2, and moves horizontally in the direction toward the second side plate 22 and one end of the pair of guide rails 28. As shown in fig. 6 and 7, when the user continuously lifts the second body 92, since the protrusion 513 of the cam 51 rotates clockwise, the sliding member 3 can move continuously toward the direction in which the second side plate 22 connects to one end of the pair of guide rails 28, and when the second body 92 reaches a predetermined angle, for example, 140 degrees, the back of the second body 92 abuts against the protrusion 91 of the first body 9 to stop rotating continuously.

In the process that the rotating shaft 6 rotates from 0 degree to 140 degrees, the rotating shaft 6 continuously presses the gradually increasing friction torque of the first friction torque portion 42 and the second pin 515 continuously presses the gradually increasing friction torque of the second friction torque portion 521, so as to form a double torque to resist the force applied during the operation and the weight of the second body 92, and further to support the free-stop effect of the opening and closing angle range of the second body 92, so as to avoid the change of the opening angle of the second body 92 relative to the first body 9, thereby facilitating the user to operate or view the image displayed on the screen of the second body 92. In the reverse rotation stroke of the second body 92, the friction torque generated by the first friction torque portion 42, the rotation shaft 6, the second friction torque portion 521 and the second pin 515 respectively is gradually smaller than the friction torque of the forward rotation stroke within the same angle range, which is beneficial to the folding operation.

To sum up, the utility model adopts the structure of the single shaft and the linkage assembly matching with the double slide rails to replace the double-shaft hinge structure of the previous proposal, when the second machine body rotates at a large angle relative to the first machine body, the interference phenomenon in the prior art can be overcome, the structural distance between the second machine body and the first machine body can be reduced, and even the sliding part can be further shortened to the horizontal movement distance of only about 5.6 mm; the two friction torque parts are respectively sleeved with the rotating shaft and the second pin, so that friction torque can be generated respectively, even a single shaft generates larger torque of about 5.5-6.5 kgf-cm, sufficient supporting effect is provided, force application and object weight during operation are resisted, a free stagnation effect is generated, and a user can turn over and use the device more conveniently; moreover, because the lower half part of the sliding part is connected to the two straight rod guide rails which are parallel to each other in a relatively sliding manner, the sliding part can slide back and forth more stably when the second machine body rotates, so that the smoothness in use is increased, and the service life of the element is prolonged.

Although the present invention has been disclosed in connection with the preferred embodiments for achieving the above objects, it is not intended to limit the structural features of the present invention, and any changes or modifications that can be easily conceived by those skilled in the art are possible within the technical spirit of the present invention and are all the scope of the claims of the present invention.

Claims

1. A single-axis hinge, comprising:

a base body connected with a first machine body, wherein the base body is provided with a pair of guide rails;

one end of the sliding part is connected with the pair of guide rails in a relatively sliding mode, a rotating shaft can rotatably penetrate through the other end of the sliding part, and the rotating shaft is connected with a second machine body;

one end of the torsion piece is connected with the sliding piece, the other end of the torsion piece is provided with a first friction torsion part, and the first friction torsion part is sleeved with the rotating shaft so as to generate rotation friction torsion; and

a linkage assembly, which comprises a cam and a connecting rod, wherein the cam is connected with one end of the rotating shaft and is provided with a convex part; one end of the connecting rod is connected with the convex part, and the other end of the connecting rod is pivoted and positioned on the seat body.

2. The single-axis hinge device as claimed in claim 1, wherein the base has a first side plate and a second side plate parallel to each other, a hollow groove is formed between the first side plate and the second side plate, the pair of guide rails are located in the hollow groove, and two ends of the pair of guide rails are respectively connected to the first side plate and the second side plate.

3. The uniaxial hinge device of claim 2, wherein the first side plate has a pair of first positioning holes, the second side plate has a pair of second positioning holes, the pair of guide rails comprises a first rod and a second rod parallel to each other, and two ends of the first rod and two ends of the second rod are respectively positioned in the pair of first positioning holes and the pair of second positioning holes.

4. The single-axis hinge as claimed in claim 3, wherein the sliding member has a pair of through holes at one end thereof, the first rod and the second rod respectively pass through the through holes, and the sliding member is slidably connected to the pair of guide rails.

5. The single-axis hinge device as claimed in claim 2, wherein the base further has a third side plate perpendicular to the first side plate and the second side plate, the third side plate having a limiting groove for receiving and limiting the other end of the connecting rod.

6. The uniaxial hinge as set forth in claim 1 wherein the other end of the sliding member has a pair of spaced lugs, the pair of lugs having a pivot hole for the rotation shaft to rotatably pass through respectively.

7. The uniaxial hinge as set forth in claim 6 wherein the pair of lugs of the sliding member has an engaging groove therebetween, and the torsion member has an engaging portion at one end thereof for engaging the engaging groove, the torsion member being connected to the sliding member through the engaging portion.

8. The uniaxial hinge as set forth in claim 1, wherein one end of the shaft is a cylindrical body having two parallel surfaces, a through hole penetrates the two parallel surfaces, one end of the cam has two axially extending wings sandwiching the two parallel surfaces of one end of the shaft, and a first pin penetrates the two wings and the through hole so that the cam is connected to one end of the shaft.

9. The single-axis hinge as claimed in claim 1 or 8, wherein the convex portion of the cam further comprises a second pin, the convex portion has a radial slot, the second pin axially passes through the radial slot, and one end of the connecting rod is sleeved on the second pin.

10. The single-axis hinge as claimed in claim 9, wherein the connecting rod has a second friction torsion portion at one end thereof, the second friction torsion portion being engaged with the second pin to generate a rotational friction torsion.