CN210978174U

CN210978174U - Synchronous transmission pivot device

Info

Publication number: CN210978174U
Application number: CN201921314800.5U
Authority: CN
Inventors: 徐安赐
Original assignee: Shenzhen Fushida Communication Co ltd; First Dome Corp
Current assignee: Shenzhen Fushida Communication Co ltd; First Dome Corp
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2020-07-10
Anticipated expiration: 2029-08-14

Abstract

The utility model relates to a synchronous transmission pivot device, which has the functions of simplifying the structure, reducing the assembly of components, assembling tolerance/moving space, and the like; comprises a body and a combination of a first actuating plate and a second actuating plate which are arranged on the body. The first actuating plate is provided with a first obliquely extending arm part, the second actuating plate is provided with a second obliquely extending arm part, and the first obliquely extending arm part and the second obliquely extending arm part are respectively accommodated in a first oblique track and a second oblique track of the body; and when a person operates the first actuating plate or the second actuating plate to move, the first actuating plate or the first arm part of the first actuating plate and the second actuating plate or the second arm part of the second actuating plate respectively move synchronously along the first inclined track and the second inclined track so as to achieve an opening and closing mechanism.

Description

Synchronous transmission pivot device

Technical Field

The utility model relates to a pivot structure; more particularly, to a pivot assembly that utilizes an angled arm to cooperate with an angled track to produce a synchronous motion to reduce assembly tolerances/motion space.

Background

The present invention relates to a hinge or shaft which can be reciprocally rotated by an external force, and is mounted on an electronic device, such as a mobile phone, a notebook computer, a PDA, an electronic book, etc., so that a cover or a display screen can be rotated to have an opening and closing function.

In order to provide the display module (e.g., screen) and/or the body module of the electronic device WITH more operation modes and application ranges, the prior art has also disclosed a structure that a dual pivot shaft is provided between the display module and the body module, so that the display module and/or the body module can generate different operation modes or rotation angles.

One problem with the operation, movement and structural design of such dual-pivot or pivot assemblies is that, in order to achieve the synchronous transmission function, at least one dual-pivot assembly must be physically applied to cooperate with the transmission mechanism to provide the display module and/or the body module with the movement in different operation modes; for example, TW102216086, "synchronous motion device for dual spindle system," TW105126016, "axial displacement pivot," and so on, provide possible embodiments.

The old method also discloses a technical structure which applies a structure combination of a plurality of rotating shafts, gears and chain sheets for connecting to transmit power and ensure that the double rotating shafts synchronously rotate. Considering the light and thin shape of the rotating shaft or the related combination components, the structure of the plurality of gears and the chain pieces for transmitting power is reduced as much as possible, so as to obtain the visual appearance effect of the whole electronic device with simple and beautiful design.

However, as known to those skilled in the art, reducing the structure of the gears and the chain relatively reduces the working depth of the meshing transmission between the gears and the chain, which significantly affects the structural strength and the service life of the gears, and is not beneficial to the cooperation and power transmission between the gears, thereby easily generating the idle stroke phenomenon of rotation and sliding, and reducing the operation feeling or hand feeling of the user.

Especially, when the user operates the display module to rotate to drive the plurality of gears and the chain sheet transmission rotating shaft to drive the machine body module to synchronously rotate, the rotating shaft is complicated in combination with the plurality of gears and the chain sheet transmission structure, so that the assembly is troublesome, the assembly tolerance is large, and a large space is occupied or a large volume is occupied; which is not desirable.

Representatively, these references show the use and structural design of the dual pivot or pivot axis and its associated coupling assembly. If the design is repeated to consider the structure of the shaft and the related components, and the application conditions are different from the prior art, the usage pattern can be changed, and the application range can be enlarged, which is different from the prior art. For example, consider that under the condition that the pivot device or the related combination component meets the design requirements of light and thin modeling of electronic devices and the structural design of synchronous movement, the situations that the existing structure is not beneficial to power transmission and produces idle stroke phenomenon are improved; or further, the pivot device removes the structural form of the old double-rotating-shaft system, and can provide the functions of generating different operation modes and synchronous movement for the display module and/or the machine body module; moreover, when the pivot is combined with the electronic device, the hinge has the functions of higher transmission precision and stability, obtaining structure, simple and convenient assembly, improving the existing assembly to occupy larger (movement) space or volume and the like. None of these issues is specifically taught or disclosed in the above referenced data.

SUMMERY OF THE UTILITY MODEL

The main objective of the present invention is to provide a synchronous transmission pivot device, which provides the effects of simple structure, reduced assembly, assembly tolerance/motion space, etc.; comprises a body and a combination of a first actuating plate and a second actuating plate which are arranged on the body. The first actuating plate is provided with a first obliquely extending arm part, the second actuating plate is provided with a second obliquely extending arm part, and the first obliquely extending arm part and the second obliquely extending arm part are respectively accommodated in the first oblique rail and the second oblique rail of the body. When the person operates the first actuating plate or the second actuating plate to move, the first actuating plate or the first arm part of the first actuating plate and the second actuating plate or the second arm part of the second actuating plate respectively move synchronously (or in opposite directions) along the first oblique track and the second oblique track so as to achieve an opening and closing mechanism; the situations of complex structure, troublesome manufacture and assembly, large assembly tolerance, idle stroke phenomenon generated by power transmission and the like in the prior art are improved.

According to the pivot device of the synchronous transmission of the utility model, the body is in an arc-shaped cylinder structure and is provided with a groove chamber in an arc-shaped (section) structure; the chamber is provided with or integrally formed with a plurality of limiting parts to define the first inclined rail and the second inclined rail.

In a modified embodiment, the body is disposed on a base provided with a recess housing the body and allowing the body to reciprocate within the base recess. When the first actuating plate or the arm moves towards one side along the first inclined track, the body is pushed to move from the first position (or called opening position) to the second position (or called closing position) of the concave chamber, and the second actuating plate or the arm is synchronously driven to move towards the other side on the second inclined track.

Drawings

Fig. 1 is a schematic view of the three-dimensional appearance structure of the present invention; showing the body in combination with the base and the first and second actuator plates and the body in the first position in the recess of the base.

FIG. 2 is an exploded view of FIG. 1; the structure of the body, the base, the first actuating plate, the second actuating plate and the body with the restricting part is described.

FIG. 3 is a schematic plan view of the structure of FIG. 1; the first and second operating plates are shown in the open position.

Fig. 4 is a schematic perspective view of an embodiment of the present invention; the first and second actuating plates are moved from the open position to the closed position and the body is moved from the first position to the second position.

FIG. 5 is a schematic cross-sectional view of FIG. 4; the dotted line in the figure depicts the combination of the first and second action plates of the housing and the screen, and the situation that the first and second action plates rotate synchronously along the virtual axis.

Fig. 6 is a schematic perspective view of another embodiment of the present invention; the situation that the first actuating plate and the second actuating plate are located at the folding position and the body is located at the second position is shown.

Fig. 7 is a schematic sectional structure view of fig. 6.

Description of the symbols in the drawings:

10 first action board 11 arm one

22 arm two 18 connecting end one

28 connecting end two 19 free end one

29 free end two 20 second actuating plate

30 first limiting part 31 first inclined rail

40 second limiting part 42 second inclined rail

50 first notch of body 51

52 second notch 54 combination

55 groove chamber 56 partition

58 first chamber 59 second chamber

60 base 61 first notch

62 second notch 64 guide

65 alcove 70 casing

80 screen C virtual axis

Detailed Description

The technical solution of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, 2 and 3, the pivot device for synchronous transmission according to the present invention includes a combination of a main body, a first operating plate and a second operating plate, which are generally indicated at 50, 10 and 20, respectively. In the following description, reference is made to the upper part, the bottom part, the lower part or the left end, the right end, etc., which are referred to in the direction shown in the drawings.

The body 50 is shown as an arcuate plate or cylinder (or near-half cylinder) having an open arcuate (cross-sectional) configuration of the chamber 55; a partition 56 is optionally provided generally centrally within the chamber 55 to divide the chamber 55 into a first (arcuate) chamber 58 and a second (arcuate) chamber 59. And the body 50 is provided with a first notch 51 communicated with the first groove chamber 58 at the upper side (in the figure), and a second notch 52 communicated with the second groove chamber 59 is formed at the lower side of the body 50; the first notch 51 is located adjacent to the partition 56 (or adjacent to the center of the body 50), and the second notch 52 is located away from the partition 56 (or away from the center of the body 50).

In the embodiment adopted, the reservoir chamber 55 is provided with or integrally formed with a plurality of restrictions; the restriction section is divided into a first restriction section 30 and a second restriction section 40, which are respectively located in the first chamber 58 and the second chamber 59. The first limiting part 30 and the second limiting part 40 form a plurality of block-shaped body structures with arc-shaped cross section shapes; the first restriction portion 30 is provided with or defines a first diagonal rail 31 communicating with the first notch 51, and the second restriction portion 40 is provided with or defines a second diagonal rail 42 communicating with the second notch 52.

In the preferred embodiment, the first inclined rail 31 and the second inclined rail 42 are respectively formed in a curved channel shape to match the curved (cross-sectional) structure of the body 50 (or the chamber 55).

Assuming that the direction of the drawing is taken as a reference direction, the first inclined rail 31 is a type extending obliquely from the upper side (or the first notch 51) toward the lower side and the left end of the body 50; the second inclined rail 42 extends obliquely from the upper position toward the lower and right ends (or the second notch 52) of the body 50.

Fig. 1, 2 and 3 also depict the first actuating plate 10 and the second actuating plate 20 disposed on the body 50. The first actuating plate 10 is provided with a first arm part 11 with an arc-shaped protruding structure, the second actuating plate 20 is provided with a second arm part 22 with an arc-shaped protruding structure, and the first arm part 22 and the second arm part 22 can respectively reciprocate and are contained in the first inclined rail 31 and the second inclined rail 42 of the body 10; and the first arm 11 of the first actuating plate 10 and the second arm 22 of the second actuating plate 20 respectively have a first connecting end 18, a second connecting end 28, a first free end 19 and a second free end 29.

In the illustrated embodiment, the arm portion 11 of the first actuating plate 10 extends obliquely from the connecting end 18 toward the free end 19 and toward the left end (in the drawing) corresponding to the first inclined rail 31; the second arm 22 of the second actuating plate 20 extends obliquely from the second connecting end 28 toward the second free end 29 and toward the left end (in the drawing) corresponding to the second inclined rail 42.

The body 50 is also shown assembled on the base 60. The base 60 is an arc plate or a cylinder (or a nearly half cylinder) structure, and has a concave chamber 65 with an open arc (cross section) structure for receiving the body 50; and, the body 50 is allowed to reciprocate in the base concave chamber 65. And, corresponding to the position of the first notch 51 of the body, the upper side of the base 60 is provided with a first notch 61; the base 60 has a second notch 62 at a lower position corresponding to the second notch 52 of the body.

In a possible embodiment, the bottom of the body 50 is provided with a combined portion 54 in an elongated convex structure (or an elongated concave structure); and, corresponding to the combination part 54 of the body 50, the concave chamber 65 of the base 60 is provided with a guide part 64 with a long concave structure (or a long convex structure), when the body 50 is installed in the concave chamber 65 of the base, the body combination part 54 combines with the base guide part 64, and the auxiliary body 50 can stably form a function of freely moving in the concave chamber 65.

As shown in fig. 1 or 3, the body 50 is combined with the base 60 and the first and second operation plates 10 and 20 (and the first and second regulating portions 30 and 40); the assembled position defines a first position of the body 50 in the base cavity 65 and a configuration of the first and

second actuator plates

10, 20 in the open position.

As shown in fig. 4 and 5, the dotted line of fig. 5 depicts the configuration of the first actuating plate 10, the second actuating plate 20, the combined housing 70 and the screen 80; the screen 80 may select a flexible screen or a non-flexible screen. When the first and

second actuating plates

10 and 20 are moved from the open position to the closed position by an operator operating the housing 70 (or the screen 80), the following movements are involved:

1. the first operating plate 10 or the first arm 11 thereof, the second operating plate 20 or the second arm 22 thereof rotates around the virtual axis C and moves along the first inclined rail 31 and the second inclined rail 42, respectively, so as to force the first arm 11 of the first operating plate 10 to gradually protrude from the first notch 51 (or the first notch 61), and simultaneously drive the body 50 (or the first limiting portion 30 and the second limiting portion 40) to move from the first position (or the right end in fig. 4) of the concave chamber 65 to the second position (or the left end in fig. 4).

It is understood that the virtual axis C is located at the center of the movement range (or the rotation range) of the first arm 11 of the first operation plate 10 and the second arm 22 of the second operation plate 20.

2. And, in response to the movement of the second limiting portion 40, the second inclined rail 42 synchronously drives the second arm portion 22 of the second action plate 20 to gradually protrude from the second notch 52 (or the second notch 62).

As shown in fig. 6 and 7, when the first and second actuating plates 10 and 20 (or the housing 70 and the screen 80) reach the retracted position, the body 50 also reaches the second position from the first position of the recess 65; thereby achieving the opening and closing mechanism of the first operating plate 10 and the second operating plate 20 (or the housing 70 and the screen 80).

It is understood that the first oblique rail 31 and the second oblique rail 42 are disposed along the virtual axis C; and the arc structures (or curvatures) of the first arm 11 of the first movable plate 10 and the second arm 22 of the second movable plate 20 are the same as the curvatures of the first inclined rail 31 and the second inclined rail 42 corresponding to the curvature of the first inclined rail 31 and the curvature of the second inclined rail 42.

Typically, the synchronous transmission pivot device includes the following advantages and considerations compared with the old method under the condition of conforming to the light and thin (or simplified) design of the electronic device:

1. the combination structure of the body 50, the first actuating plate 10, the second actuating plate 20 or the base 60 has been redesigned to form a single pivot structure type capable of synchronous rotation and/or movement; for example, the body 10 is provided with a first limiting portion 30 and a second limiting portion 40 to form a first inclined rail 31 and a second inclined rail 42; the first actuating plate 10 and the second actuating plate 20 respectively form a first arm part 11 and a second arm part 22 of an arc-shaped protruding structure, and can reciprocate on the first inclined rail 31 and the second inclined rail 42; or the structure for moving the body 50 between the first position and the second position of the base recess 65, is significantly different from the conventional dual-pivot structure.

2. The combined structure of the body 50, the first actuating plate 10, the second actuating plate 20 or the base 60 and the flexible screen 80 is beneficial to the whole electronic device to obtain the visual effect of simple and beautiful appearance; and the situation that the existing double-rotating-shaft assembly occupies large (space/movement) space or volume is improved. The structure of the prior art is not favorable for the idle stroke phenomenon of power transmission, and the situations of complex matching type, troublesome manufacture and assembly, large assembly tolerance, high cost and the like are also obviously improved.

In summary, the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A synchronous drive pivot apparatus, comprising:

a combination of a body (50), a first action plate (10) and a second action plate (20) arranged on the body (50); the body (50) is provided with a groove chamber (55), and a first inclined rail (31) and a second inclined rail (42) which are positioned on the groove chamber (55);

the first actuating plate (10) is provided with a first arm part (11) with a protruding structure, and the second actuating plate (20) is provided with a second arm part (22) with a protruding structure; the first arm part (11) of the first action plate (10) and the second arm part (22) of the second action plate (20) are respectively provided with a connecting end I (18), a connecting end II (28), a free end I (19) and a free end II (29);

the first arm part (11) of the first action plate (10) and the second arm part (22) of the second action plate (20) are respectively accommodated in the first inclined rail (31) and the second inclined rail (42); when the first actuating plate (10) and the second actuating plate (20) move, the first arm part (11) of the first actuating plate (10) and the second arm part (22) of the second actuating plate (20) respectively move synchronously along the first inclined rail (31) and the second inclined rail (42).

2. The synchronous drive pivot device of claim 1, wherein the body (50) is an arcuate plate structure such that the pocket (55) is an arcuate cross-sectional structure of an open configuration;

a first notch (51) is formed on the upper side of the body (50), and a second notch (52) is formed on the lower side of the body (50); the first notch (51) is located adjacent to the central region of the body (50), and the second notch (52) is located away from the central region of the body (50);

a partition plate (56) is arranged at the central position of the tank chamber (55) and divides the tank chamber (55) into a first tank chamber (58) and a second tank chamber (59); and

the first chamber (58) is communicated with the first notch (51), and the second chamber (59) is communicated with the second notch (52).

3. Synchronous-drive pivot device according to claim 1, characterized in that the groove chamber (55) is provided with a plurality of restrictions in the form of a block-shaped body structure of arcuate cross-sectional profile;

the limiting part is divided into a first limiting part (30) and a second limiting part (40); the first limiting portion (30) defines a first inclined rail (31), and the second limiting portion (40) defines a second inclined rail (42).

4. Synchronous-drive pivot device according to claim 2, characterized in that the groove chamber (55) is provided with a plurality of restrictions in the form of a block-shaped body structure of arcuate cross-sectional profile;

the limiting part is divided into a first limiting part (30) and a second limiting part (40) which are respectively positioned in the first groove chamber (58) and the second groove chamber (59);

the first limiting portion (30) defines a first inclined rail (31) communicated with the first notch (51), and the second limiting portion (40) defines a second inclined rail (42) communicated with the second notch (52).

5. Synchronous-drive pivot device according to claim 1, characterized in that the body (50) is arranged in combination on a base (60); the base (60) is in an arc plate structure, and is provided with an open-type concave chamber (65) with an arc cross section structure, so that the body (50) can reciprocate in the concave chamber (65) of the base; when the first arm part (11) of the first actuating plate (10) rotates towards one side of the body (50) along the first inclined track (31), the body (50) is pushed to move from a first position to a second position of the concave chamber (65), and the second arm part (22) of the second actuating plate (20) is synchronously driven to rotate towards the other side of the body (50) on the second inclined track (42);

a first notch (61) is arranged at the upper side of the base (60), and a second notch (62) is arranged at the lower side of the base (60);

the bottom of the body (50) is provided with a combined part (54), and the combined part (54) is of one of a long convex structure and a long concave structure; and

the recessed chamber (65) of the base (60) is provided with a guide portion (64), and the guide portion (64) is one of an elongated recessed structure and an elongated raised structure.

6. Synchronous-drive pivot device according to claim 2, characterized in that the body (50) is arranged in combination on a base (60); the base (60) is in an arc plate structure, and is provided with an open-type concave chamber (65) with an arc cross section structure, so that the body (50) can reciprocate in the concave chamber (65) of the base; when the first arm part (11) of the first actuating plate (10) rotates towards one side of the body (50) along the first inclined track (31), the body (50) is pushed to move from the first position to the second position of the concave chamber (65), and the second arm part (22) of the second actuating plate (20) is synchronously driven to rotate towards the other side of the body (50) on the second inclined track (42);

a first notch (61) is arranged on the upper side of the base (60) corresponding to the position of the first notch (51) of the body; a second notch (62) is arranged at the lower side of the base (60) corresponding to the position of the second notch (52) of the body;

7. Synchronous-drive pivot device according to claim 3, characterized in that the body (50) is arranged in combination on a base (60); the base (60) is in an arc plate structure, and is provided with an open-type concave chamber (65) with an arc cross section structure, so that the body (50) can reciprocate in the concave chamber (65) of the base; when the first arm part (11) of the first actuating plate (10) rotates towards one side of the body (50) along the first inclined track (31), the body (50) is pushed to move from the first position to the second position of the concave chamber (65), and the second arm part (22) of the second actuating plate (20) is synchronously driven to rotate towards the other side of the body (50) on the second inclined track (42);

8. Synchronous-drive pivot device according to claim 4, characterized in that the body (50) is arranged in combination on a base (60); the base (60) is in an arc plate structure, and is provided with an open-type concave chamber (65) with an arc cross section structure, so that the body (50) can reciprocate in the concave chamber (65) of the base; when the first arm part (11) of the first actuating plate (10) rotates towards one side of the body (50) along the first inclined track (31), the body (50) is pushed to move from the first position to the second position of the concave chamber (65), and the second arm part (22) of the second actuating plate (20) is synchronously driven to rotate towards the other side of the body (50) on the second inclined track (42);

9. The pivot device of synchronous drive according to claim 1, characterized in that the first actuating plate (10) and the second actuating plate (20) are combined with the housing (70) and the screen (80) to move the first arm (11) of the first actuating plate (10) and the second arm (22) of the second actuating plate (20) along the virtual axis (C); the virtual axis (C) is located at the center of the range of motion of the first arm (11) of the first actuator plate (10) and the second arm (22) of the second actuator plate (20).

10. The pivot device of synchronous drive according to claim 2, characterized in that the first actuating plate (10) and the second actuating plate (20) are combined with the housing (70) and the screen (80) to move the first arm (11) of the first actuating plate (10) and the second arm (22) of the second actuating plate (20) along the virtual axis (C); the virtual axis (C) is located at the center of the range of motion of the first arm (11) of the first actuator plate (10) and the second arm (22) of the second actuator plate (20).

11. The pivot device of synchronous drive according to claim 3, characterized in that the first actuating plate (10) and the second actuating plate (20) are combined with the housing (70) and the screen (80) to move the first arm (11) of the first actuating plate (10) and the second arm (22) of the second actuating plate (20) along the virtual axis (C); the virtual axis (C) is located at the center of the range of motion of the first arm (11) of the first actuator plate (10) and the second arm (22) of the second actuator plate (20).

12. The pivot mechanism of synchronous drive according to claim 4, characterized in that the first actuating plate (10) and the second actuating plate (20) are combined with the housing (70) and the screen (80) to move the first arm (11) of the first actuating plate (10) and the second arm (22) of the second actuating plate (20) along the virtual axis (C); the virtual axis (C) is located at the center of the range of motion of the first arm (11) of the first actuator plate (10) and the second arm (22) of the second actuator plate (20).

13. The pivot mechanism of synchronous drive according to claim 5, characterized in that the first actuating plate (10) and the second actuating plate (20) are combined with the housing (70) and the screen (80) to move the first arm (11) of the first actuating plate (10) and the second arm (22) of the second actuating plate (20) along the virtual axis (C); the virtual axis (C) is located at the center of the range of motion of the first arm (11) of the first actuator plate (10) and the second arm (22) of the second actuator plate (20).

14. The pivot mechanism of synchronous drive according to claim 6, characterized in that the first actuating plate (10) and the second actuating plate (20) are combined with the housing (70) and the screen (80) to move the first arm (11) of the first actuating plate (10) and the second arm (22) of the second actuating plate (20) along the virtual axis (C); the virtual axis (C) is located at the center of the range of motion of the first arm (11) of the first actuator plate (10) and the second arm (22) of the second actuator plate (20).

15. The pivot mechanism of synchronous drive according to claim 7, characterized in that the first actuating plate (10) and the second actuating plate (20) are combined with the housing (70) and the screen (80) to move the first arm (11) of the first actuating plate (10) and the second arm (22) of the second actuating plate (20) along the virtual axis (C); the virtual axis (C) is located at the center of the range of motion of the first arm (11) of the first actuator plate (10) and the second arm (22) of the second actuator plate (20).

16. The pivot mechanism of synchronous drive of claim 8, characterized in that the first actuating plate (10) and the second actuating plate (20) are combined with the housing (70) and the screen (80) to move the first arm (11) of the first actuating plate (10) and the second arm (22) of the second actuating plate (20) along the virtual axis (C); the virtual axis (C) is located at the center of the range of motion of the first arm (11) of the first actuator plate (10) and the second arm (22) of the second actuator plate (20).