TWM513553U - Dual-shaft synchronous transmission mechanism - Google Patents

Description

Double shaft synchronous transmission mechanism

The present invention relates to a double-shaft synchronous transmission mechanism; in particular, a transmission type, a linkage, and a convex arm structure connection fixing member are used for combining electronic objects to obtain a new type of improved transmission accuracy.

The utility model is equipped with a pivot or a rotating shaft which can be reciprocally rotated by an external force, and is mounted on an electronic object, such as a mobile phone, a notebook computer, a PDA, an e-book, etc., so that the cover or the display screen can be rotated to have an opening and closing function. The department has been a skilled skill. For example, Taiwan Patent No. 97222022 "Rotary Shaft Structure", No. 98207366 "Pivot Structure" and the like provide a typical embodiment.

In order to provide more operating modes and application ranges for display modules (eg, screens) and/or body modules of electronic objects, the prior art has also disclosed a method between a display module and a body module. The double shaft is arranged to enable the display module and/or the body module to generate different operating modes or rotation angles. For example, Taiwan No. 99211350 "Double Pivot Hub", No. 99225737 "Biaxial Axle", US 7512426 B2 "MOBILE COMMUNICATIONS DEVICE WITH SYNCHRONISING HINGE" patent case, etc., provide a feasible embodiment.

One of the problems in the operation, movement and structural design of such double-shaft or pivot assemblies is that the old method discloses a combination of structures using multiple shafts, gears, and chain links to transmit power and synchronize the rotation of the two shafts. Technical structure. Considering the rotating shaft or its related combination components, the gears and chain structures used to transmit power will be reduced as much as possible in accordance with the light and thin shape of the electronic components, so that the entire electronic device can be simplified and aesthetically pleasing. The visual appearance of the look.

However, as is known to those skilled in the art, reducing the gear and chain structure also reduces the working depth of their meshing transmissions, which significantly affects the structural strength and service life of the gear, and is also disadvantageous between the gear and the gear. Coordination and power transmission are easy to produce a free-running phenomenon of rotational sliding, which reduces the user's feeling of operation or feel.

In particular, when the user operates the display module to rotate, driving a plurality of gears and chain drive shafts, and in the case of synchronous rotation of the motorized body module, the structural relationship of the plurality of gears and chain drives is complicated, The assembly is troublesome, and it takes up a lot of space or has a large volume; this situation is not what we expected.

Typically, these references show the use and structural design of the dual hinges or pivots and their associated bonded components. If the redesign considers the structure of the shaft and related components, as well as the above application, making it different from the conventional one, it will change its use type and increase its application range, which is different from the old method. For example, consider the double-rotor or its related combination components under the conditions of the light and thin design requirements of the electronic device and the structural design of the synchronous movement, while improving the conventional technology to minimize the transmission of the gear and the chain structure. The volume is not conducive to power transmission or the occurrence of a free-running phenomenon; or further, when the transmission mechanism is combined with an electronic device, it has a high transmission accuracy and stability, and a structure, a simple assembly, and the like. None of these topics have been specifically taught or disclosed in the above references.

Therefore, the main purpose of this creation is to provide a double-rotor synchronous transmission mechanism, which provides the functions of reducing the space occupation, assembly complexity, and kinetic energy transmission loss of component cooperation. The actuator includes a first shaft and a second shaft. The actuator and the linkage respectively have a main zone and a secondary zone connecting the main zones. At least a partial area of the main area forms an actuating portion that is mutually movable, so that the first shaft and the second shaft generate a synchronous rotation type. And the auxiliary region of the actuator and the linkage is formed into a convex arm structure, and respectively connected to a fixing member of the combinable electronic object, so as to reduce assembly complexity and improve transmission precision.

According to the dual-shaft synchronous transmission mechanism of the present invention, the driving portion of the actuator and the driving portion of the coupling respectively form a gear structure that can directly mesh with each other to establish a working depth of the meshing transmission which is more conventional than the prior art. The first shaft and the second shaft respectively comprise a pivoting area and a fixed area; the pivoting area is equipped with the actuator, the connecting body and a torque module, the torque module and the transmission mechanism (ie, the actuator, the linkage) The type of interval arrangement. For example, every 5 actuators and actuators are arranged in a group of transmission mechanisms, and a set of torque modules are combined by contact.

In the embodiment taken, the torsion module is a combination of a plurality of plate structures; the plate structure has surfaces that are in contact with each other and a first hand and a second hand. The plate structure and/or the first hand and the second hand define a shaft hole and an opening communicating with the shaft hole, so that the first hand and the second hand have an elastic range of motion to respond to the first axis, the first Two-axis movement.

Referring to Figures 1, 2 and 3, the dual-shaft synchronous transmission mechanism of the present invention includes a first axis and a second axis that are parallel to each other; respectively, which are denoted by reference numerals 10 and 20, respectively. The first shaft 10 and the second shaft 20 have pivotal regions 11, 21 and fixed regions 12, 22, respectively. The pivoting regions 11, 21 are formed in a rectangular cross-section structure, and the transmission mechanism composed of the actuator 30 and the interlocking device 40 is combined; the pivoting regions 11, 21 are also combined with the torque module 50; the torque module 50 makes the first shaft 10, When the force of the user's operation of the rotation disappears, the second shaft 20 immediately obtains the positioning effect.

In the embodiment taken, the actuator 30 and the actuator 40 are in a sheet structure, and a plurality of actuators 30 and 40 are arranged in combination to constitute the above-described transmission mechanism. The actuator 30 and the linker 40 have main sections 31, 41 of an annular profile and sub-zones 32, 42 connecting the main sections 31, 41, respectively. The main areas 31 and 41 are provided with shaft holes 33 and 43 respectively for engaging the first shaft pivoting area 11 and the second shaft pivoting area 21. At least a partial area (about two-thirds of the area) of the main area 31, 41 (peripheral) is provided with the driving portions 34, 44, so that the first shaft 10 and the second shaft 20 generate a synchronous rotation type; the actuator driving portion 34, The actuator pilots 44 form a gear structure that is directly engageable with one another to create a working depth greater than that of the prior art.

Therefore, when the first shaft 10 and the actuator 30 rotate, the actuator 30 drives the linkage 40 to rotate, forcing the coupling 40 and the second shaft 20 to rotate in the direction in which the opposite actuator 30 moves, thereby causing the first shaft 10, The two shafts 20 produce a synchronous rotation pattern.

Referring again to Figures 1, 2 and 3, the sub-region 32 of the actuator 30 and the sub-region 45 of the actuator 40 are in the form of a convex arm structure, and a fixing member 60, 65 can be pivotally connected or combined. The fixing members 60 and 65 are respectively fixed to the display module 91 and the body module 92 of the electronic device 90 (for example, a mobile phone, a computer, etc.), so that the actuator 30 and the first shaft 10, the linker 40 and the second shaft 20 are provided. The user operates the display module 91 or the body module 92 to rotate and rotate; for example, the situation depicted in FIG.

It should be noted that the driving portion 34 of the actuator 30 and the driving portion 44 of the coupling 40 form a direct engagement and a large working depth. The consideration is that the actuator 30 and the coupling 40 can directly react to the electronic object 90. The turning operation achieves the effect of improving the accuracy and stability of the power transmission; and, the complexity of the conventional assembly of the plurality of components is reduced, the idle travel of the sliding slip is easily generated, the kinetic energy transfer delay is caused, and the user's operation feeling is lowered. Or feel and so on.

Figures 1, 2 and 3 also depict the torque module 50 as a combination of a plurality of plate structures 55. The sheet structure 55 has a surface 56 that is in contact with each other and two sets of first hand 51 and second hand 52. The plate structure 55 and/or the two sets of first hand 51 and second hand 52 define a first shaft hole 53, a second shaft hole 54 and a first one that communicates with the first shaft hole 53 and the second shaft hole 54. Opening 57, second opening 58; and, the sheet structure 55 is between the first shaft hole 53, the first opening 57 and the second shaft hole 54, the second opening 58 (or the intermediate portion 59 of the sheet structure 55), Forming a communicating hollow portion and an (arc) coupling arm 59a positioned on both sides of the intermediate portion 59, the first hand portion 51 and the second hand portion 52 having a range of elastic motion in response to the first shaft 10 and the second portion The movement of the shaft 20.

In the embodiment taken, the first opening 57, the second opening 58 is oriented towards the intermediate region 59 of the sheet structure 55 or toward the hollow portion (i.e., toward the inner direction of the sheet structure 55). And, the torque module 50 and the transmission mechanism (ie, the actuator 30, the interlock 40) are arranged in a spaced relationship. For example, every five actuators 30 and 40 are arranged in a group of transmission mechanisms, and a set of torque modules 50 composed of five plate structures 55 are combined.

It can be understood that the surface 56 of each of the slab structures 55 is responsive to the rotation of the first shaft 10, the actuator 30 and the second shaft 20, and the coupling 40 to form a torsion force to the first shaft 10 and the actuator. When the force of the user's operation and the rotation of the second shaft 20 and the interlocking member 40 disappears, the positioning function is obtained.

Referring to FIGS. 3 and 4, when the person operates the display module 91 to move toward the open position, the first shaft 10 and the driving portion 34 of the actuator 30 are driven by the fixing member 60 to drive the linkage driving portion 44, so that the coupling 40, The second shaft 20, the fixture 65 and the body module 92 move in synchronism; for example, the situation depicted in FIG.

Fig. 5 shows a case where the body module 92 is also rotated by 90° while the display module 91 is rotated by 90°, and is rotated by 180° in common.

Referring to Figure 6, a modified embodiment of the slab structure 55 is shown. The sheet structure 55 has a surface 56 that is in contact with each other and two sets of first hand 51 and second hand 52. The plate structure 55 and/or the two sets of first hand 51 and second hand 52 define a first shaft hole 53, a second shaft hole 54 and a first one that communicates with the first shaft hole 53 and the second shaft hole 54. An opening 57, a second opening 58; and a plate structure 55 is formed between the first shaft hole 53 and the second shaft hole 54 with an intermediate portion 59 and a coupling arm 59a located on both sides of the intermediate portion 59, together with the first hand The portion 51 and the second hand 52 have a range of elastic motion in response to the movement of the first shaft 10 and the second shaft 20. In the embodiment taken, the first opening 57 and the second opening 58 are oriented toward the outer direction of the sheet structure 55 with respect to the position of the intermediate portion 59 of the sheet structure 55.

Typically, the dual-shaft synchronous transmission mechanism has the following considerations and advantages compared with the old method under the condition of having synchronous operation; 1. The first shaft 10 and the second shaft 20 and related component structures (for example, the actuator main section 31, the interlocker main section 41 are provided with shaft holes 33, 43, respectively engaging the first shaft 10, the second shaft 20; the peripheral area of the actuator main section 31, the interlock The peripheral portion of the main portion 41 is provided with the driving portions 34 and 44 that are mutually movable; the actuator sub-region 32 and the interlocking sub-region 42 form a convex arm structure; and the torque module 50 is provided with the first hand portion 51 and the second hand portion 52. The first shaft hole 43 of the first shaft 10, the first opening 57, the second shaft hole 54 of the second shaft 20, and the second opening 58 are combined to make the first hand 51 and the second hand 52 have an elasticity. The range of motion; the plate structure 55 has surfaces 56 that are in contact with each other, and the frictional force acting in response to the movement of the actuator 30 and the actuator 40 is combined to form a synchronous transmission mechanism, which has been redesigned, and is different from the conventional one. The structural type of the movement of the technical transmission shaft. 2. The first shaft 10 and the second shaft 20 are combined with the actuator 30, the driving portion 34, the interlocking unit 40, and the driving portion 44, and at the same time, the conventional skill is improved under the condition that the electronic device is light and thin, and the design is required. As much as possible, the volume of the gear and the chain structure of the transmission power is reduced, and the working depth of the meshing transmission is reduced, which is disadvantageous for the cooperation and power transmission or the occurrence of the idle stroke phenomenon and the complicated assembly. In particular, the actuator 30 and the coupling 40 directly form the driving portions 34 and 44 having a larger meshing or working depth than the conventional structure, and the transmission mechanism composed of the combination of the actuator 30 and the coupling 40 is combined with the electronic device. High transmission accuracy and stability, as well as easy to obtain structure and assembly.

Therefore, this creative department provides an effective double-shaft synchronous transmission mechanism. Its spatial type is different from the conventional ones, and it has the advantages unmatched in the old method. It shows considerable progress and is fully consistent. The requirements of the new patent.

However, the above is only a feasible embodiment of the present invention, and is not intended to limit the scope of the present invention, that is, the equivalent changes and modifications made by the scope of the patent application of the present invention are covered by the scope of the creative patent. .

10‧‧‧ first axis

11, 21‧‧‧ pivotal area

12, 22‧‧‧ fixed area

20‧‧‧second axis

30‧‧‧Activity

31, 41‧‧‧ main area

32, 42‧‧‧Sub-district

33, 43‧‧‧ shaft hole

40‧‧‧Connector

50‧‧‧Torque Module

51‧‧‧ first hand

52‧‧‧ second hand

53‧‧‧First shaft hole

54‧‧‧Second shaft hole

55‧‧‧Slab structure

56‧‧‧ surface

57‧‧‧ first opening

58‧‧‧second opening

59‧‧‧Intermediate area

59a‧‧‧Joint arm

60, 65‧‧‧ fixing parts

90‧‧‧Electronic objects

91‧‧‧Display module

92‧‧‧body module

The first picture is a schematic diagram of the structure combination of the present creation; the first axis, the second axis combination torque module, the actuator, the linkage, the fixing part and the like are shown. The imaginary line part in the figure depicts the electronic device level in the off The situation of the location.

Figure 2 is a schematic exploded view of the structure of Figure 1.

Figure 3 is a plan view of the structure of Figure 1; depicting the structural cooperation of the electronic device and the first shaft and the second shaft in the closed position, and the actuator and the interlocking body are engaged with each other.

Fig. 4 is a schematic view showing an operation example of the present invention; showing a structure in which the first shaft and the second shaft are respectively rotated by 45°, and the structure of the actuator and the interlocking body is matched.

Figure 5 is a schematic view of one embodiment of the operation of the present invention; the first shaft and the second shaft are respectively rotated by 90°, and the structural cooperation of the actuator and the linkage is described.

Figure 6 is a schematic diagram of a modified embodiment of the torque module of the present invention.

10‧‧‧ first axis

11, 21‧‧‧ pivotal area

12, 22‧‧‧ fixed area

20‧‧‧second axis

30‧‧‧Activity

31, 41‧‧‧ main area

32, 42‧‧‧Sub-district

33, 43‧‧‧ shaft hole

40‧‧‧Connector

50‧‧‧Torque Module

51‧‧‧ first hand

52‧‧‧ second hand

53‧‧‧First shaft hole

54‧‧‧Second shaft hole

55‧‧‧Slab structure

56‧‧‧ surface

57‧‧‧ first opening

58‧‧‧second opening

59‧‧‧Intermediate area

59a‧‧‧Joint arm

60, 65‧‧‧ fixing parts

Claims (15)

A double-shaft synchronous transmission mechanism includes: a first shaft and a second shaft that are parallel to each other; the first shaft and the second shaft respectively have a pivoting area and a fixed area; and the transmission is disposed on the first shaft, and the transmission has a main area And a sub-zone connected to the main zone; the main section of the transmission is provided with a shaft hole, and the pivoting zone of the first shaft is inserted; and the interlocking device is disposed on the second axis, the interlocking body has a main zone and a sub-zone connecting the main zone; The main area of the main body is provided with a shaft hole, and the pivoting area of the second shaft is inserted; at least a partial area of the main part of the transmission, and at least a partial area of the main part of the main body, forming a driving portion that can be mutually driven, so that the first shaft and the first shaft The two axes produce a synchronous rotation. The double-shaft synchronous transmission mechanism according to claim 1, wherein the auxiliary sub-zone and the auxiliary sub-zone are formed into a convex arm structure, and respectively matched with the display module and the body module of the electronic component. The double-shaft synchronous transmission mechanism according to claim 1 or 2, wherein the pivotal region is formed into a rectangular cross-section structure; the actuator and the linkage are formed into a plate structure, and the plurality of actuators and the linkages are arranged and combined to form The transmission mechanism; the main section of the transmission and the main section of the coupling are formed into an annular profile; the actuator is formed into a gear structure formed on at least two-thirds of the area around the main portion of the transmission; the linkage of the actuator is formed into a gear structure. At least two-thirds of the area around the main section of the actuator; the actuator pilot and the actuator pilot are engaged with each other to cause the first shaft and the second shaft to rotate in a synchronous manner. The double-shaft synchronous transmission mechanism according to claim 1 or 2, wherein the pivoting area is combined with a torsion module; the torsion module is a combination of a plurality of plate structures; the plate structure has mutual contact friction a surface, a first hand, a second hand, and an intermediate portion; the plate structure and the first hand and the second hand define a shaft hole and an opening communicating with the shaft hole to enable the first hand and the second hand The portion has an elastic range of motion in response to movement of the first axis and the second axis. The double-shaft synchronous transmission mechanism according to claim 3, wherein the pivoting area is combined with a torsion module; the torsion module is a combination of a plurality of plate structures; the plate structure has a surface that is in contact with each other, a first hand, a second hand and an intermediate portion; the plate structure and the first hand and the second hand define a shaft hole and an opening communicating with the shaft hole, so that the first hand and the second hand have An elastic range of motion in response to movement of the first axis and the second axis. The double-shaft synchronous transmission mechanism according to claim 4, wherein the plate structure has two sets of first hand and second hand; the plate structure and the two sets of first hand and second hand are defined The first shaft hole, the second shaft hole and the first opening and the second opening corresponding to the first shaft hole and the second shaft hole; the plate structure is in the first shaft hole, the first opening and the second shaft hole, An intermediate portion between the two openings is formed with a communicating hollow portion and a coupling arm positioned on both sides of the intermediate portion; and the first opening and the second opening are oriented toward an intermediate portion of the interior of the sheet structure. The double-shaft synchronous transmission mechanism according to claim 5, wherein the plate structure has two sets of first hand and second hand; the plate structure and the two sets of first hand and second hand are defined The first shaft hole, the second shaft hole and the first opening and the second opening communicating with the first shaft hole and the second shaft hole; a plate structure is formed in an intermediate portion between the first shaft hole, the first opening and the second shaft hole, and the second opening, and has a communicating hollow portion and a coupling arm on both sides of the intermediate portion; and the first opening and the second The opening is in the direction of the intermediate portion inside the sheet structure. The double-shaft synchronous transmission mechanism according to claim 4, wherein the torque module and the transmission are arranged in a spaced arrangement; each of the five actuators and the linkage are arranged in a group of transmission mechanisms, and the contact group is combined. A torsion module consisting of 5 plate structures. The double-shaft synchronous transmission mechanism according to claim 5, wherein the torque module and the transmission are arranged in a spaced arrangement; each of the five actuators and the linkage are arranged in a group of transmission mechanisms, and the contact group is combined. A torsion module consisting of 5 plate structures. The double-shaft synchronous transmission mechanism according to claim 6, wherein the torque module and the transmission are arranged in a spaced arrangement; each of the five actuators and the linkage are arranged in a group of transmission mechanisms, and the contact group is combined. A torsion module consisting of 5 plate structures. The double-shaft synchronous transmission mechanism according to claim 7, wherein the torque module and the transmission form a spaced-apart type; each of the five actuators and the linkage are arranged in a group of transmission mechanisms, and the contact group is combined. A torsion module consisting of 5 plate structures. The double-shaft synchronous transmission mechanism according to claim 4, wherein the plate structure has two sets of first hand and second hand; the plate structure and the two sets of first hand and second hand are defined The first shaft hole, the second shaft hole and the first opening and the second opening corresponding to the first shaft hole and the second shaft hole; the plate structure forms a coupling arm on both sides of the intermediate portion; and the middle portion of the plate structure The first opening and the second opening are positions facing the outer direction of the sheet structure. The double-shaft synchronous transmission mechanism according to claim 5, wherein the plate structure has two sets of first hand and second hand; the plate structure and the two sets of first hand and second hand are defined The first shaft hole, the second shaft hole and the first opening and the second opening corresponding to the first shaft hole and the second shaft hole; the plate structure forms a coupling arm on both sides of the intermediate portion; and the middle portion of the plate structure The first opening and the second opening are positions facing the outer direction of the sheet structure. The double-shaft synchronous transmission mechanism according to claim 12, wherein the torque module and the transmission are arranged in a spaced arrangement; each of the five actuators and the linkage are arranged in a group of transmission mechanisms, and the contact group is combined. A torsion module consisting of 5 plate structures. The double-shaft synchronous transmission mechanism according to claim 13, wherein the torque module and the transmission are arranged in a spaced arrangement; each of the five actuators and the linkage are arranged in a group of transmission mechanisms, and the contact group is combined. A torsion module consisting of 5 plate structures.