CN108394317B

CN108394317B - Seat sliding device, seat and automobile comprising seat

Info

Publication number: CN108394317B
Application number: CN201810213592.3A
Authority: CN
Inventors: 尹长久; 汪涛
Original assignee: NIO Anhui Holding Co Ltd
Current assignee: NIO Holding Co Ltd
Priority date: 2018-03-15
Filing date: 2018-03-15
Publication date: 2020-10-23
Anticipated expiration: 2038-03-15
Also published as: CN108394317A

Abstract

The invention belongs to the field of automobiles, and particularly provides a seat sliding device, a seat and an automobile comprising the seat. The scheme aims to solve the problem that the user experience is poor due to inconvenient operation of the seat sliding device of the existing automobile. The seat slide apparatus of the present invention includes a lower rail and a seat fixing mechanism. The seat fixing mechanism is provided with a travelling mechanism, a motor, a locking mechanism and a handle; the travelling mechanism is used for supporting the seat fixing mechanism to move along the extending direction of the lower guide rail; the motor is in driving connection with the traveling mechanism; the locking mechanism is used for locking the travelling mechanism on the lower guide rail to the current position; the handle is in driving connection with the locking mechanism, and the locking mechanism can be unlocked by operating the handle; further, the lock mechanism is provided to release the locked state when the rotating shaft of the motor rotates. According to the seat sliding device, the user can freely switch between automatic adjustment and manual adjustment through the structure, and the use experience of the user is optimized.

Description

Seat sliding device, seat and automobile comprising seat

Technical Field

The invention belongs to the field of automobiles, and particularly provides a seat sliding device, a seat and an automobile comprising the seat.

Background

Seat slide devices for automobiles mainly include two types of manual seat slide devices and electric seat slide devices. While powered seat slides provide a user with a use experience and comfort that is superior to manual seat slides, powered seat slides move the seat at a slower rate. Therefore, when the seat needs to be adjusted for a long distance, the time required by the electric seat sliding device is longer than that required by the manual seat sliding device, and the use experience of the user is poor.

To this end, chinese patent application CN206327188U discloses an electric and manual dual-purpose vehicle seat adjusting device, which mainly includes a fixing plate disposed on the vehicle body, a gear disposed below the seat, a motor and a positioning rod. The gear and the output shaft of the motor are coaxially fixed, a rack seat and a positioning hole are arranged on the fixing plate, a rack in the rack seat is meshed with the gear, and the positioning hole is matched with the positioning rod. When the seat moves, a user firstly lifts the positioning rod out of the positioning hole manually, and then the seat moves forwards and backwards in a motor driving gear mode or a manual driving mode. After the seat moves to the target position, the user inserts the positioning rod into the positioning hole to fix the seat. Therefore, when the seat is moved in an electric mode, a user needs to operate the key with one hand and lift the positioning rod with the other hand, and the user experience is poor.

Accordingly, there is a need in the art for a new seat slide apparatus that solves the above problems.

Disclosure of Invention

In order to solve the above-mentioned problems in the prior art, that is, to solve the problem of poor user experience caused by inconvenient operation of the conventional seat sliding apparatus for an automobile, the present invention provides a seat sliding apparatus, which includes a seat fixing mechanism and a lower rail connected to a floor, wherein the seat fixing mechanism is capable of moving in an extending direction of the lower rail, and the seat sliding apparatus further includes: a traveling mechanism by which the seat fixing mechanism is movable in the direction in which the lower rail extends; a motor for driving the traveling mechanism; a lock mechanism provided to be manually switchable between a locked state and an unlocked state, and also provided to be switchable from the locked state to the unlocked state upon rotation of a rotating shaft of the motor, wherein in the locked state, the traveling mechanism lock is locked to the lower rail by the lock mechanism; the traveling mechanism, the motor and the locking mechanism are respectively arranged on the seat fixing mechanism.

In a preferred embodiment of the seat sliding apparatus, the traveling mechanism includes a traveling wheel pivotally provided on the seat fixing mechanism and contacting the lower rail.

In a preferred embodiment of the seat sliding apparatus, a motor is provided between the traveling wheel and the motor: one end of the input shaft is coaxially and fixedly connected with the rotating shaft of the motor; one end of the output shaft is coaxially and fixedly connected with the travelling wheel; an intermediate shaft disposed between the input shaft and the output shaft so as to be coaxially slidably connected to the input shaft and the output shaft; wherein the coupling of the input shaft and the intermediate shaft is such that rotation of the input shaft drives the intermediate shaft to slide to a target position and thereby causes the locking mechanism to switch from a locked state to an unlocked state.

In a preferred embodiment of the seat sliding apparatus, a first spring is further provided between the input shaft and the intermediate shaft, so that when the input shaft and the intermediate shaft stop rotating, the intermediate shaft is returned to an initial position by an elastic force of the first spring.

In a preferred embodiment of the seat slide device, one of the input shaft and the intermediate shaft is provided with a V-shaped groove, and the other of the input shaft and the intermediate shaft is provided with a pin, and when the input shaft and the intermediate shaft stop rotating, the first spring drives the intermediate shaft so that the pin abuts against a closed end of the V-shaped groove.

In a preferred aspect of the seat slide device described above, the lock mechanism includes: a vertical moving member that is provided on the seat fixing mechanism movably in a vertical direction, the locking mechanism being in a locked state when the vertical moving member moves into contact with the lower rail; a pivot member pivotally provided on the seat fixing mechanism; the first end of the unlocking piece is sleeved on the middle shaft and can rotate relative to the middle shaft and axially slide together with the middle shaft, the second end of the unlocking piece is in driving connection with the first end of the pivoting piece, and the second end of the pivoting piece is in driving connection with the vertical moving piece; when the intermediate shaft slides to a target position, the unlocking piece is driven to move to an unlocking position, the pivoting piece rotates, the second end of the pivoting piece enables the vertical moving piece to be separated from the lower guide rail, and the locking mechanism is switched to an unlocking state.

In the preferable technical scheme of the seat sliding device, an inclined strip-shaped hole is formed in the first end of the pivoting part, the second end of the unlocking part is connected with the strip-shaped hole in a sliding mode, and when the unlocking part axially slides along with the intermediate shaft, the unlocking part drives the pivoting part to rotate through matching between the unlocking part and the strip-shaped hole.

In a preferred technical solution of the seat sliding apparatus, the locking mechanism further includes a second spring, one end of which abuts against the vertical moving member, and the other end of which abuts against the seat fixing mechanism, for driving the vertical moving member to abut against the lower guide rail.

In a preferred technical solution of the seat sliding apparatus, the manual mode is a handle operation, the handle is pivotally disposed on the seat fixing mechanism, an execution end of the handle is drivingly connected to the first end of the pivoting member, and the operation end of the handle is operated to drive the execution end to drive the pivoting member to rotate, so that the locking mechanism is switched to the unlocking state.

In a preferred embodiment of the seat sliding apparatus, the seat fixing mechanism is provided with an upper rail, and the upper rail is slidably connected to the lower rail.

In a preferred embodiment of the seat slide apparatus described above, the traveling wheels are pivotally provided on the upper rail.

In a preferred embodiment of the seat sliding apparatus described above, the vertical moving member is movably provided on the upper rail; and/or the pivot member is pivotally disposed on the upper rail.

In a preferred embodiment of the seat slide device, the other end of the second spring abuts against the upper rail.

In a preferred technical solution of the seat sliding apparatus, the lower rail is provided with a rack, and the traveling wheel is a gear engaged with the rack.

In a preferred technical solution of the seat sliding apparatus, one end of the vertical moving member close to the lower rail is provided with a toothed structure.

In a preferable embodiment of the seat sliding apparatus, the motor is an electric motor.

In addition, the invention also provides a seat comprising the seat sliding device in any one of the preferable technical solutions of the seat sliding device.

In addition, the invention also provides an automobile which comprises the seat.

As will be understood by those skilled in the art, in the preferred embodiment of the present invention, the seat attachment mechanism is allowed to travel on the lower rail by means of the traveling mechanism by providing the traveling mechanism on the seat attachment mechanism. The motor which is in driving connection with the travelling mechanism is arranged on the seat fixing mechanism, so that the seat fixing mechanism can automatically move relative to the lower guide rail. By providing a lock mechanism on the seat fixing mechanism, the seat fixing mechanism on the lower rail can be locked to a target position. Furthermore, the locking mechanism is set to be switched from the locking state to the unlocking state when the rotating shaft of the motor rotates, so that a user does not need to unlock the locking mechanism manually when needing automatic movement of the seat, only the control button needs to be operated, operation of the user is facilitated, and use experience of the user is optimized. Furthermore, the handle is arranged on the seat fixing mechanism, so that a user can switch the locking mechanism from the locking state to the unlocking state by operating the handle, and the user can drive the seat fixing mechanism manually to enable the seat fixing mechanism to slide relative to the lower guide rail. Therefore, the seat sliding device can not only realize the automatic adjustment of the seat, but also enable the user to manually operate when the seat is required to be adjusted for a long distance, so that the user can freely switch between the automatic adjustment and the manual adjustment, the operation comfort of the user is improved, and the use experience of the user is optimized.

Further, in a preferred technical scheme of the invention, a rack is arranged on the lower guide rail, the traveling mechanism comprises a gear meshed with the rack, and the motor is a motor. An input shaft, a middle shaft and an output shaft are sequentially arranged between the motor and the gear. One end of the input shaft is coaxially fixed with a rotating shaft of the motor, and the other end of the input shaft is coaxially fixed with the intermediate shaft. One end of the output shaft is coaxially fixed with the gear, and the other end of the output shaft is coaxially fixed with the intermediate shaft. The intermediate shaft is slidable in its axial direction relative to the input shaft and the output shaft, and the connection of the input shaft and the intermediate shaft is arranged to drive the intermediate shaft to slide to a target position when the input shaft rotates, and thus cause the locking mechanism to switch from the locked state to the unlocked state.

Scheme 1, a seat slide device, it includes seat fixed establishment and the lower rail that is connected with the floor, seat fixed establishment can follow the lower rail extending direction removes, the seat slide device still includes:

a traveling mechanism by which the seat fixing mechanism is movable in the direction in which the lower rail extends;

a motor for driving the traveling mechanism;

a lock mechanism provided to be manually switchable between a locked state and an unlocked state, and also provided to be switchable from the locked state to the unlocked state upon rotation of a rotating shaft of the motor, wherein in the locked state, the traveling mechanism lock is locked to the lower rail by the lock mechanism;

the traveling mechanism, the motor and the locking mechanism are respectively arranged on the seat fixing mechanism.

The seat sliding apparatus according to claim 2 or 1, wherein the traveling mechanism includes a traveling wheel that is pivotally provided on the seat fixing mechanism and contacts the lower rail.

Scheme 3, according to scheme 2 the seat slider, characterized in that, the motor with be provided with between the walking wheel:

one end of the input shaft is coaxially and fixedly connected with the rotating shaft of the motor;

one end of the output shaft is coaxially and fixedly connected with the travelling wheel;

an intermediate shaft disposed between the input shaft and the output shaft so as to be coaxially slidably connected to the input shaft and the output shaft;

wherein the coupling of the input shaft and the intermediate shaft is such that rotation of the input shaft drives the intermediate shaft to slide to a target position and thereby causes the locking mechanism to switch from a locked state to an unlocked state.

The seat slide apparatus according to claim 4 or 3, wherein a first spring is further provided between the input shaft and the intermediate shaft, so that when the input shaft and the intermediate shaft stop rotating, the intermediate shaft is returned to an initial position by an elastic force of the first spring.

The seat slide apparatus according to claim 5 or 4, wherein one of the input shaft and the intermediate shaft is provided with a V-groove, and the other of the input shaft and the intermediate shaft is provided with a pin, and when the input shaft and the intermediate shaft stop rotating, the first spring drives the intermediate shaft so that the pin abuts against a closed end of the V-groove.

The seat slide device according to claim 6 or 3, wherein the lock mechanism includes:

a vertical moving member that is provided on the seat fixing mechanism movably in a vertical direction, the locking mechanism being in a locked state when the vertical moving member moves into contact with the lower rail;

a pivot member pivotally provided on the seat fixing mechanism;

the first end of the unlocking piece is sleeved on the middle shaft and can rotate relative to the middle shaft and axially slide together with the middle shaft, the second end of the unlocking piece is in driving connection with the first end of the pivoting piece, and the second end of the pivoting piece is in driving connection with the vertical moving piece;

when the intermediate shaft slides to a target position, the unlocking piece is driven to move to an unlocking position, the pivoting piece rotates, the second end of the pivoting piece enables the vertical moving piece to be separated from the lower guide rail, and the locking mechanism is switched to an unlocking state.

Scheme 7, according to scheme 6 the seat slider, characterized in that, be provided with the bar hole of slope on the first end of pivot spare, the second end of unblocking piece with bar hole sliding connection, when the unblocking piece with when the jackshaft is the axial sliding together, the unblocking piece through with the cooperation drive between the bar hole the pivot spare rotates.

Scheme 8, according to scheme 6 the seat slide device, characterized in that, locking mechanism still includes the second spring, its one end with vertical moving member offsets, its other end with seat fixed establishment offsets for drive vertical moving member supports and leans on the lower rail.

The seat sliding apparatus according to claim 9 or 6, wherein the manual mode is a handle operation, the handle is pivotally disposed on the seat fixing mechanism, the actuating end of the handle is drivingly connected to the first end of the pivotal member, and the operating end of the handle is operated to drive the actuating end to drive the pivotal member to rotate, so that the locking mechanism is switched to the unlocking state.

The seat sliding apparatus according to claim 10 or any one of claims 2 to 9, wherein an upper rail is provided on the seat fixing mechanism, and the upper rail is slidably connected to the lower rail.

The seat slide apparatus according to claim 11 or 10, wherein the traveling wheels are pivotally provided on the upper rail.

The seat slide apparatus according to claim 12 or 10, wherein a vertical moving member is movably provided on the upper rail; and/or the pivot member is pivotally disposed on the upper rail.

The seat slide device according to claim 13 or 10, wherein the other end of the second spring abuts against the upper rail.

The seat slide apparatus according to claim 14 or any one of claims 2 to 9, wherein the lower rail is provided with a rack, and the traveling wheel is a gear that meshes with the rack.

The seat slide apparatus according to claim 15 or any one of claims 6 to 9, wherein a toothed structure is provided at an end of the vertical moving member near the lower rail.

The seat slide apparatus according to claim 16 or any one of claims 1 to 9, wherein the motor is an electric motor.

Solution 17, a seat, characterized in that the seat comprises the seat slide device of any one of solutions 1 to 16.

Solution 18, an automobile, wherein the automobile comprises the seat of solution 17.

Drawings

Preferred embodiments of the present invention are described below in conjunction with an automobile with reference to the accompanying drawings, in which:

FIG. 1 is a first side view of the seat slide of the present invention;

FIG. 2 is a second side view of the seat slide of the present invention

FIG. 3 is a front view of the seat slide of the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 1;

FIG. 5 is an enlarged view of portion B of FIG. 2;

FIG. 6 is a cross-sectional view of the seat slide of FIG. 3 taken along the direction C-C;

FIG. 7 is a cross-sectional view of the seat slide of FIG. 3 taken along the direction D-D;

FIG. 8 is an exploded view of the connecting shaft assembly of the first embodiment of the present invention;

FIG. 9 is a front view of the connecting shaft assembly of the first embodiment of the present invention;

FIG. 10 is a cross-sectional view of the connecting shaft assembly of FIG. 9 taken along the direction E-E;

FIG. 11 is a side view of the intermediate shaft of the first embodiment of the present invention;

FIG. 12 is a side view of the intermediate shaft of the second embodiment of the present invention;

FIG. 13 is a side view of the output shaft of the second embodiment of the present invention;

FIG. 14 is a schematic illustration of a second embodiment of the present invention showing a first relative position of the output shaft and the intermediate shaft, the output shaft and the intermediate shaft being able to rotate relative to each other;

FIG. 15 is a schematic view of a second relative position of the output shaft and the intermediate shaft in a second embodiment of the invention, where the output shaft and the intermediate shaft rotate synchronously

FIG. 16 is a side elevational view of the input shaft of the third embodiment of the present invention;

FIG. 17 is a side view of the intermediate shaft of the third embodiment of the present invention;

FIG. 18 is a cross-sectional view of the intermediate shaft of the third embodiment of the present invention;

FIG. 19 is a side elevational view of the output shaft of the third embodiment of the present invention;

FIG. 20 is a schematic view of a coupling shaft assembly in a first state in accordance with a third embodiment of the present invention;

FIG. 21 is a schematic view of a coupling shaft assembly in a second state in accordance with a third embodiment of the present invention;

fig. 22 is an enlarged view of a portion H in fig. 20.

List of reference numerals:

10. a lower guide rail; 11. a rack; 20. a seat fixing mechanism; 21. an upper guide rail; 22. a gear; 23. a rotating shaft; 30. a handle; 31. an operation end; 32. an execution end; 33. an auxiliary handle; 40. a motor; 50. connecting the shaft assembly; 51. an input shaft; 511. a first external spline; 512. a V-shaped groove; 513. an input shaft hole; 52. an intermediate shaft; 521. a first mating hole; 5211. a first internal spline; 5212. an annular bottom end; 522. a second mating hole; 5221. a second internal spline; 523. a pin hole; 524. an annular shoulder; 53. an output shaft; 531. a second male spline; 532. an annular flange; 54. a first spring; 55. a ball bearing; 56. plugging by screwing; 60. a locking mechanism; 61. a vertical moving member; 62. a pivot member; 621. a strip-shaped hole; 63. unlocking the lock; 64. a second spring; 65. a pin.

Detailed Description

It should be understood by those skilled in the art that the embodiments of the present invention are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. For example, although the seat sliding apparatus of the present invention is described and illustrated in the embodiment of the present section by taking an automobile as an example, the seat sliding apparatus of the present invention may be applied to any other feasible equipment, such as a subway, a train, a high-speed rail, etc.; for convenience of description, the manual mode switching between the locking state and the unlocking state is explained in the embodiments of this section by using the handle operation, but the present application does not exclude other modes that can realize the manual mode switching between the locking state and the unlocking state, such as the lever operation. Those skilled in the art can make modifications as needed to suit a particular application, and such modified embodiments will still fall within the scope of the present invention.

It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicating the directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1 to 3, the seat sliding apparatus of the present invention mainly includes a lower rail 10, a seat fixing mechanism 20, a handle 30, a motor 40, and a locking mechanism 60. In practical applications, the lower rail 10 is fixedly mounted to the floor of the vehicle, and the seat fixing mechanism 20 is fixedly connected to the seat of the vehicle. Wherein the seat fixing mechanism 20 is slidably connected to the lower rail 10. The lock mechanism 60 can be switched between the locked state and the unlocked state, and the lock mechanism 60 in the normal state is in the locked state. When the lock mechanism 60 is in the locked state, the seat fixing mechanism 20 and the lower rail 10 are fixed together, and relative sliding cannot occur. The handle 30 is operatively connected to the locking mechanism 60, and the locking mechanism 60 can be switched from the locked state to the unlocked state by operating the handle 30. At this time, the user can manually operate the seat fixing mechanism 20 to move the seat fixing mechanism 20 in the extending direction of the lower rail 10. Further, a traveling mechanism (not shown) is disposed on both sides of the seat fixing mechanism 20, and the traveling mechanism is drivingly connected to the motor 40 through a connecting shaft assembly 50. The connecting shaft assembly 50 is in driving connection with the locking mechanism 60, and when the motor 40 drives the connecting shaft assembly 50 to rotate, the connecting shaft assembly 50 can enable the locking mechanism 60 to be switched from a locking state to an unlocking state. At this time, the motor 40 drives the traveling mechanism to move in the extending direction of the lower rail 10 through the connecting shaft assembly 50.

It will be appreciated by those skilled in the art that the dual output shaft motor 40 shown in fig. 1-3 may be replaced by any other type of motor, such as a single output shaft motor, a hydraulic motor, a pneumatic motor, etc.

With continued reference to fig. 1-3, the seat fixing mechanism 20 is provided with a rotatable shaft 23, and a middle portion of the handle 30 is fixedly connected to the shaft 23. The handle 30 includes an operating end 31 for being operated by a user and an actuating end 32 for actuating the locking mechanism 60. The handle 30 can be rotated about the rotary shaft 23 by pulling the operating end 31 of the handle 30, and the actuating end 32 drives the locking mechanism 60 to switch from the locked state to the unlocked state. Further, in the preferred embodiment of the present invention, one locking mechanism 60 is provided for each of the two lower rails 10. Correspondingly, the seat sliding device of the invention further comprises a secondary handle 33, one end of the secondary handle 33 is fixedly connected with the rotating shaft 23, and the other end of the secondary handle 33 is in driving connection with another locking mechanism 60. As can be seen from fig. 1 to 3, the handle 30 is arranged in parallel with the sub-handle 33 so that the handle 30 and the sub-handle 33 can be operated in synchronism with each other while unlocking the two lock mechanisms 60.

In a preferred embodiment of the present invention, a return spring for maintaining the handle 30 and the sub-handle 33 in the state shown in fig. 1 and 2 is provided between the seat fixing mechanism 20 and the rotating shaft 23. At this time, the handle 30 and the sub-handle 33 do not apply pressure to the lock mechanism 60. The seat fixing mechanism 20 is further provided with a stopper for limiting the handle 30 and preventing the handle 30 from being excessively rotated in the direction of the operation end 31.

It can be understood by those skilled in the art that, in the case where the seat fixing mechanism 20 and the lower rail 10 can be locked, the seat slide apparatus of the present invention may be provided with one or more locking mechanisms 60 on only one of the two lower rails 10, in addition to the case shown in fig. 1 to 3. It will also be appreciated by those skilled in the art that the handle 30 may be replaced by any other operable mechanism, such as a pull rod or a pull cord drivingly connected to the vertical moving member 61, provided that the locking mechanism 60 can be unlocked manually.

With continued reference to fig. 1-3, a rack 11 is provided within the lower track 10, preferably with the rack 11 being fixedly mounted in the lower track 10 by bolts. Or the rack 11 can be fixed to the lower rail 10 by any other means of fixing, such as welding, clamping or integral molding, as required. In another possible technical solution of the present invention, the lower rail 10 may also be any other possible rail, for example, a rail without a rack, a rail with a rubber strip at the bottom, and the like, on the premise that the traveling mechanism can travel on the lower rail 10.

As shown in fig. 1 to 3 and 5, the seat fixing mechanism 20 includes an upper rail 21. The upper rail 21 is slidably connected to the lower rail 10, and the top of the upper rail 21 is fixedly connected to the seat attachment mechanism 20, where the upper rail 21 is mainly used to support the seat attachment mechanism 20. The traveling mechanism of the seat fixing mechanism 20 mainly includes a gear 22. The gear 22 is pivotally provided on the upper rail 21, and the gear 22 is engaged with the rack 11, and the gear 22 is coaxially fixed with the connecting shaft assembly 50. Alternatively, the gear 22 may be pivotally disposed on the seat fixing mechanism 20 as needed by those skilled in the art, with the gear 22 engaged with the rack 11. The lower gear 22 can drive the seat fixing mechanism 20 to move in the extending direction of the lower rail 10 by engagement with the rack 11 under the driving of the motor 40. Furthermore, one skilled in the art can configure gear 22 to be any other feasible road wheel, such as a rubber wheel, as desired. It is also possible for those skilled in the art to omit the upper rail 21 and support and drive the seat fixing mechanism 20 to move in the extending direction of the lower rail 10 through the gear 22, as necessary.

As shown in fig. 4 to 7, the locking mechanism 60 mainly includes a vertical moving member 61, a pivoting member 62, an unlocking member 63, and a second spring 64. As shown in fig. 6 and 7, the vertical moving member 61 includes a rod-shaped portion (not shown) and a tooth block (not shown) having a tooth-like structure at one end, wherein one end of the rod-shaped portion is provided with an end cap (not shown), and the other end of the rod-shaped portion is fixedly connected with the tooth block. The vertical moving member 61 is movably connected to the upper rail 21 in the vertical direction by a rod-shaped portion. When the vertical moving member 61 moves vertically downward against the rack 11, the toothed structure of the toothed block can mesh with the rack 11. As shown in fig. 7, one end of the second spring 64 abuts against the upper guide rail 21, the other end of the second spring 64 abuts against the tooth block, and the second spring 64 provides a force to the vertical moving member 61 toward the rack 11 for driving the vertical moving member 61 to move toward the rack 11.

It will be understood by those skilled in the art that the toothed block may also be provided in any other feasible configuration, such as a rubber block, a metal block with corrugations, a cylinder with a conical configuration, provided that the vertical moving member 61 abuts against the lower rail 10 and thus locks the seat attachment mechanism 20 and the lower rail 10 together.

As shown in fig. 4, 5 and 7, the pivoting member 62 is pivotally connected to the upper rail 21 via a pin 65, a first end of the unlocking member 63 is sleeved on the connecting shaft assembly 50, a second end of the unlocking member 63 is slidably connected to a first end of the pivoting member 62, and a second end of the pivoting member 62 is drivingly connected to an end cap of the vertical moving member 61. Specifically, the second end of the pivoting member 62 has a U-shaped hole, the second end of the pivoting member 62 is located between the end cap and the upper rail 21, and the rod-shaped portion of the vertical moving member 61 is located in the U-shaped hole.

With continued reference to fig. 4, 5, and 7, the first end of the pivot member 62 includes a horizontal plate (not shown) and a vertical plate (not shown) that are perpendicular to each other. Wherein the horizontal plate abuts against the actuating end 32 of the handle 30, so that when the operating end 31 of the handle 30 is pulled, the actuating end 32 can drive the horizontal plate (the first end of the pivoting member 62) to move vertically downwards, and then the second end of the pivoting member 62 drives the vertical moving member 61 to move vertically upwards, and thus the locking mechanism 60 is switched from the locking state to the unlocking state. An inclined strip-shaped hole 621 is formed in the vertical plate, and the height of one end of the strip-shaped hole 621 in the vertical direction is higher than that of the other end of the strip-shaped hole 621 in the vertical direction. The second end of the unlocking member 63 is provided with a cylindrical pin slidably disposed in the strip-shaped hole 621. When the motor 40 rotates the connecting shaft assembly 50, the connecting shaft assembly 50 can drive the unlocking member 63 to slide toward the left side of the strip hole 621 shown in fig. 7. With the sliding of the unlocking piece 63, the vertical plate (the first end of the pivoting piece 62) moves vertically downward, so that the second end of the pivoting piece 62 drives the vertical moving piece 61 to move vertically upward, and thus the locking mechanism 60 is switched from the locked state to the unlocked state. When the unlocking member 63 moves to the unlocking position, that is, the cylindrical pin slides to the left end of the strip-shaped hole 621, the locking mechanism 60 is in the unlocking state.

A first embodiment of the connecting shaft assembly 50 of the present invention will be described in detail with reference to fig. 3 and 8 to 11.

As shown in fig. 3, 8 to 10, in the first embodiment of the present invention, the connecting shaft assembly 50 mainly includes an input shaft 51, an intermediate shaft 52, an output shaft 53, and a first spring 54. The first end of the input shaft 51 is coaxially and fixedly connected with the rotating shaft of the motor 40, and the second end of the input shaft 51 is coaxially and fixedly connected with the intermediate shaft 52. The first end of the output shaft 53 is coaxially and fixedly connected with the gear 22, and the second end of the output shaft 53 is coaxially and fixedly connected with the intermediate shaft 52. The first spring 54 is provided between the input shaft 51 and the intermediate shaft 52, and the first spring 54 is normally in a compressed state so as to provide the input shaft 51 and the intermediate shaft 52 with a force repelling each other in the axial direction. In the preferred embodiment of the present invention, the intermediate shaft 52 is movable in the axial direction thereof with respect to the input shaft 51 and the output shaft 53.

As shown in fig. 8 to 10, one end of the input shaft 51 remote from the motor 40 is provided with a first external spline 511 and two symmetrical V-shaped grooves 512. Wherein the two V-shaped grooves 512 are separated from each other and do not communicate. The end of the output shaft 53 remote from the gear 22 is provided with a second external spline 531. A first engagement hole 521 is provided at an end of the intermediate shaft 52 adjacent to the input shaft 51, and a second engagement hole 522 is provided at an end of the intermediate shaft 52 adjacent to the output shaft 53. Wherein, a first inner spline 5211 matching with the first outer spline 511 is arranged in the first matching hole 521, a second inner spline 5221 matching with the second outer spline 531 is arranged in the second matching hole 522, and the second inner spline 5221 penetrates through the whole second matching hole 522. Further, two pin holes 523 are disposed on the side wall of the first mating hole 521.

As shown in fig. 9 and 10, in the assembled state of the connecting shaft assembly 50, the two pin holes 523 are aligned with the two V-shaped grooves 512, respectively, so that the pins (not shown) are inserted through the pin holes 523 and abut against the inner walls of the V-shaped grooves 512, and the pins and the V-shaped grooves 512 can slide relatively. Under the action of the first spring 54, the first internal spline 5211 of the intermediate shaft 52 in the initial state is disengaged from the first external spline 511, and the second internal spline 5221 is engaged with (matingly connected to) the second external spline 531. At this time, the pin abuts against the bottom of the V-shaped groove 512 in fig. 8. When the input shaft 51 starts to rotate, the rotating V-groove 512 forces the pin in the pin hole 523 to move upward (first direction) in the extending direction of the V-groove 512, so that the intermediate shaft 52 moves upward in fig. 10 (first direction). Until the intermediate shaft 52 moves to the target position, at which time the pin moves to the top of the V-groove 512 and the first internal splines 5211 mesh with (mate with) the first external splines 511. When the input shaft 51 stops rotating, the intermediate shaft 52 returns to the initial position (initial position relative to the input shaft 51) shown in fig. 10 again by the first spring 54, at which time the pin is located at the closed end of the V-shaped groove 512.

It will be understood by those skilled in the art that the number of the V-shaped groove 512, the pin hole 523 and the pin connecting the two is not limited to the above two, and those skilled in the art can arrange the V-shaped groove 512, the pin hole 523 and the pin in any other feasible number as required. For example, the V-shaped groove 512, the pin hole 523, and the pin are provided in one, three, four, or the like.

It can also be understood by those skilled in the art that since the two V-shaped grooves 512 are separated from each other and not communicated, when the pin slides to the end of the V-shaped groove 512, the V-shaped groove 512 can limit the pin, so that the input shaft 51 drives the intermediate shaft 52 to rotate. It is also possible for those skilled in the art to omit the first inner spline 5211 and the first outer spline 511 as desired. Or those skilled in the art can also communicate the ends of the two V-grooves 512 (the two open ends with respect to the closed end) with each other, if necessary, with the first internal spline 5211 and the first external spline 511 retained, so that the pin can freely slide between the two V-grooves 512.

It will also be appreciated by those skilled in the art that the pin in the pin hole 523 may be replaced with any other feasible structure, such as a ball + plug configuration, where a ball is first placed into the pin hole 523 and a plug is then threadably installed into the pin hole 523.

As shown in fig. 11, in the first embodiment of the invention, the second internal splines 5221 of the intermediate shaft 52 extend completely through the second mating holes 522 so that the second internal splines 5221 can be engaged with the second external splines 531 when the intermediate shaft 52 is moved to any position along the axis.

As shown in fig. 8 to 11, the end of the intermediate shaft 52 near the output shaft 53 is also provided with an annular shoulder 524. The first end of the unlocking member 63 fitted over the intermediate shaft 52 is moved in the first direction (upward in fig. 10) by the annular shoulder 524.

The operation of the seat slide apparatus of the present invention will be described in detail with reference to fig. 1, 2, 8 and 9.

When the seat is automatically adjusted in position, the user manually operates the control buttons (forward button and backward button) of the motor 40, and the motor 40 drives the input shaft 51 to rotate forward or backward according to the operation of the buttons by the user. The rotating input shaft 51 drives the intermediate shaft 52 to move in a first direction (a direction closer to the motor 40) by engagement between the V-shaped groove 512 and the pin on the intermediate shaft 52. The moving intermediate shaft 52 drives the unlocking member 63 via the annular shoulder 524 also in the first direction. When the intermediate shaft 52 moves to the point where the first external splines 511 and the first internal splines 5211 are engaged, the unlocking member 63 slides to the target position and drives the pivoting member 62 to disengage the vertical moving member 61 from the rack 11 on the lower rail 10. At this time, the rotation shaft of the motor 40, the input shaft 51, the intermediate shaft 52, the output shaft 53 and the gear 22 rotate coaxially, and the gear 22 rolls in the extending direction of the rack 11 under the driving of the motor 40, thereby achieving the forward or backward movement of the seat. As will be understood by those skilled in the art, the timing of the engagement of the first external spline 511 and the first internal spline 5211 is later than the timing of the complete disengagement of the vertical moving member 61 from the rack bar 11, in other words, after the vertical moving member 61 is completely disengaged from the rack bar 11, the first external spline 511 and the first internal spline 5211 are brought into contact engagement, so as to prevent the vertical moving member 61 from not being completely disengaged from the rack bar 11 when the first external spline 511 and the first internal spline 5211 are engaged, so that the motor 40 cannot drive the gear 22 to rotate, and the excessive load is damaged.

When the seat is adjusted manually, the user pulls the operating end 31 of the handle 30 to rotate the handle 30 and the sub-handle 33 about the rotating shaft 23, so that the actuating ends 32 and 33 (not shown) of the handle 30 and the sub-handle 33 drive the first end (specifically, the horizontal plate) of the pivoting member 62 to move vertically downward, and therefore the pivoting member 62 rotates about the pin 65. The rotating pivot member 62 separates the vertical moving member 61 from the rack 11 on the lower rail 10 by its second end. After the vertical moving member 61 is completely separated from the rack 11, that is, after the locking mechanism 60 is completely switched to the unlocked state, the user seated on the seat moves the seat forward or backward by both feet.

It will be understood by those skilled in the art that when the seat is in the manual adjustment position, the gear 22 will also rotate along the extending direction of the rack 11, and the rotating gear 22 will drive the intermediate shaft 52 to rotate through the output shaft 53, so that the intermediate shaft 52 and the input shaft 51 will rotate relatively. When the intermediate shaft 52 and the input shaft 51 rotate relatively, the intermediate shaft 52 moves axially by the engagement between the pin and the V-groove 512, so that the first inner and outer splines 5211 and the first outer spline 511 are engaged, and thus the input shaft 51 connected to the rotating shaft of the motor 40 is driven to rotate. Therefore, when the user manually adjusts the seat, the rotating shaft of the motor 40 rotates along with the rotation of the gear 22, which causes unnecessary resistance to the movement of the seat and makes the user feel more strenuous to operate. To this end, the present invention also provides a second embodiment of the connecting shaft assembly 50.

A second embodiment of the connecting shaft assembly 50 of the present invention will now be described in detail with reference to fig. 12-15.

For convenience of description, and to facilitate understanding by those skilled in the art, only the differences between the second embodiment and the first embodiment will be described below.

As shown in fig. 12, in the second embodiment, the second internal splines 5221 of the intermediate shaft 52 do not extend completely through the second mating holes 522, unlike the first embodiment. In fig. 12, the portion of the second mating hole 522 at the upper end of the second internal spline 5221 is a circular hole (not labeled) having a diameter greater than the diameter of the circumscribed circle of the second internal spline 5221, so that the second external spline 531 can enter the circular hole.

As shown in fig. 13, unlike the first embodiment, in the second embodiment, the length of the second male spline 531 is small in value and is smaller than the length of the above-described circular hole in fig. 12, so that the second male spline 531 can be completely placed in the circular hole and freely rotated. Further, in fig. 13, the diameter of the part of the rod-like structure of the output shaft 53 below the second male spline 531 is smaller than the diameter of the inscribed circle of the second female spline 5221, so that the second male spline 531 can enter the above-mentioned round hole.

Under normal conditions, the engagement relationship between the intermediate shaft 52 and the output shaft 53 by the second spring 64 is as shown in fig. 14.

When the seat is manually adjusted in position, the fit relationship between the intermediate shaft 52 and the output shaft 53 is as shown in fig. 14. At this time, the output shaft 53 rotates, the intermediate shaft 52 is stationary, and the second male spline 531 rotates inside the circular hole.

When the seat is automatically adjusted to a position, the rotating shaft of the motor 40 drives the input shaft 51 to rotate, and the rotating input shaft 51 drives the intermediate shaft 52 to move towards the direction close to the motor 40 through the matching between the V-shaped groove 512 and the pin on the intermediate shaft 52 until the position is stopped. The fitting relationship between the intermediate shaft 52 and the output shaft 53 is shown in fig. 15. At this time, the first male spline 511 is engaged with the first female spline 5211, the second male spline 531 is engaged with the second female spline 5221, the input shaft 51, the intermediate shaft 52 and the output shaft 53 rotate synchronously, and the motor 40 drives the gear 22 to rotate.

Therefore, the second embodiment of the present invention not only enables the seat slide apparatus of the present invention to achieve automatic adjustment of the seat, but also enables the rotating shaft of the motor 40 not to rotate with the rotation of the gear 22 when the seat slide apparatus of the present invention is manually adjusted. The resistance generated by the motor 40 when the seat is manually adjusted is saved, the user can drive the seat to move with smaller force, and the operation comfort is improved.

A third embodiment of the connecting shaft assembly 50 of the present invention will now be described in detail with reference to fig. 16 to 22.

For convenience of description, and to facilitate understanding by those skilled in the art, only the differences between the third embodiment and the first embodiment will be described below.

As shown in fig. 16, in the third embodiment, the first external spline 511 of the input shaft 51 is replaced with an input shaft hole 513 shown in fig. 16, unlike the first embodiment. In the assembled state of the connecting shaft assembly 50, one end of the first spring 54 is placed in the input-shaft hole 513, and the end of the first spring 54 abuts against the bottom end of the input-shaft hole 513.

As shown in fig. 17 and 18, in the third embodiment, unlike the first embodiment, the first internal splines 5211 provided in the first fitting hole 521 are also omitted in correspondence with the omitted first external splines 511. Further, the second fitting hole 522 communicates with the first fitting hole 521 such that the bottom end of the first fitting hole 521 forms an annular bottom end 5212. In the assembled state of the connecting shaft assembly 50, the other end of the first spring 54 abuts against the annular bottom end 5212. Wherein the second internal splines 5221 in the second mating bore 522 are disposed at a location remote from the first mating bore 521. It should be noted that although the annular shoulder 524 of the first embodiment is not shown, one skilled in the art may arrange the annular shoulder 524 on the intermediate shaft 52 of the third embodiment as needed.

It will be appreciated by those skilled in the art that the first, second and third embodiments of the countershaft may be provided without the annular shoulder 524 when the locking mechanism 60 of the present invention takes other forms (such as the detent lever of patent application CN 206327188U).

As shown in fig. 19, in the third embodiment, unlike the first embodiment, one end of the output shaft 53 near the second male spline 531 is provided with an annular flange 532. The annular flange 532 has a diameter that is smaller than the diameter of the second mating bore 522 and larger than the circumscribed diameter of the second internal spline 5221.

As shown in fig. 20 and 21, fig. 20 shows the connecting shaft assembly 50 in the first state, and fig. 21 shows the connecting shaft assembly 50 in the second state.

As shown in fig. 20 and 22, in the third embodiment of the present invention, the input shaft 51 and the intermediate shaft 52 are axially defined by the balls 55 and the plug 56. Specifically, the balls 55 are inserted into the pin holes 523, and are in rolling contact with the inner walls of the V-grooves 512. The plug 56 is screwed into the pin hole 523 to prevent the ball 55 from coming out of the pin hole 523. When assembled, the output shaft 53 is inserted from the first fitting hole 521 into the second fitting hole 522 in the top-down direction in fig. 20. Then, the first spring 54 and the input shaft 51 are sequentially put into the first fitting hole 521, and then the input shaft 51 and the intermediate shaft 52 are fixed by the balls 55 and the plug 56. The output shaft 53 can be prevented from coming out of the end of the second fitting hole 522 far from the first fitting hole 521 by interference between the annular flange 532 and the second internal spline 5221.

As shown in fig. 20, the input shaft 51 is moved away from the intermediate shaft 52 by the first spring 54, and the balls 55 are pressed against the closed end of the V-groove 512. In this state, the second internal spline 5221 and the second external spline 531 are separated from each other, and the output shaft 53 is rotatable relative to the intermediate shaft.

When the input shaft 51 rotates, the balls 55 slide along the V-shaped grooves 512 from the closed end shown in fig. 20 to the end shown in fig. 21 and urge the intermediate shaft 52 to slide from the position shown in fig. 20 toward the input shaft 51 to the position shown in fig. 21. During the sliding of the intermediate shaft 52, the second internal spline 5221 and the second external spline 531 gradually come into engagement from being disengaged.

As shown in fig. 21, the balls 55 abut against the ends of the V-shaped grooves 512, the second internal spline 5221 is engaged with the second external spline 531, and the input shaft 51 can rotate the output shaft 53 via the intermediate shaft 52.

It will be appreciated by those skilled in the art that the connecting shaft assembly 50 of the present invention is not limited to the three embodiments described above, but may be a combination of certain features of the three embodiments described above.

It will also be understood by those skilled in the art that the connecting shaft assembly 50 of the present invention is not only capable of rotating the input shaft 51 via the intermediate shaft 52 and the output shaft 53, and thus the gear 22, when the motor 40 rotates the input shaft 51. The coupling shaft assembly 50 of the present invention also allows the gear 22 and output shaft 53 to rotate freely when the seat is manually driven without driving the input shaft 51 to rotate, thereby preventing rotation of the rotor of the motor 40. The driving resistance is reduced, and the use experience of a user is improved.

In addition, the invention also provides a seat and a vehicle, wherein the seat comprises all the technical means of the seat sliding device, and the vehicle comprises the seat.

In summary, the seat sliding apparatus of the present invention not only enables the user to operate the control key of the motor 40 to make the rotating motor 40 switch the locking mechanism 60 from the locking state to the unlocking state through the connecting shaft assembly 50, but also automatically adjust the position of the seat; it is also possible for the user to switch the lock mechanism 60 from the locked state to the unlocked state by operating the handle 30, thereby manually and quickly adjusting the position of the seat. Therefore, the seat sliding device of the invention not only can realize the automatic adjustment of the seat, but also can enable the user to manually adjust the seat when the user needs to adjust the seat for a long distance. The user can be switched between automatic adjustment and manual adjustment at will, the operation comfort of the user is improved, and the use experience of the user is optimized. Further, the present invention also reduces the resistance when the seat slide apparatus is manually adjusted by the second embodiment.

So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.

Claims

1. A seat slide apparatus including a lower rail connected to a floor and a seat attachment mechanism movable in a direction in which the lower rail extends, the seat slide apparatus further comprising:

a motor for driving the traveling mechanism;

a lock mechanism provided to be manually switchable between a locked state in which the running mechanism is locked to the lower rail by the lock mechanism and an unlocked state, and further provided to be switchable from the locked state to the unlocked state upon rotation of a rotating shaft of the motor;

the travelling mechanism, the motor and the locking mechanism are respectively arranged on the seat fixing mechanism;

the travelling mechanism comprises travelling wheels which are pivotally arranged on the seat fixing mechanism and are in contact with the lower guide rail;

the motor with be provided with between the walking wheel:

2. The seat slide apparatus according to claim 1, wherein a first spring is further provided between the input shaft and the intermediate shaft, so that the intermediate shaft is returned to an original position by an elastic force of the first spring when the input shaft and the intermediate shaft stop rotating.

3. The seat slide of claim 2 wherein one of said input shaft and said intermediate shaft has a V-shaped groove disposed thereon and the other of said input shaft and said intermediate shaft has a pin disposed thereon, said first spring driving said intermediate shaft to abut said pin against said V-shaped groove closed end when said input shaft and said intermediate shaft stop rotating.

4. The seat slide apparatus of claim 1, wherein the latch mechanism comprises:

a pivot member pivotally provided on the seat fixing mechanism;

5. The seat slide of claim 4 wherein the pivot member has a first end provided with an inclined strip-shaped aperture and the second end of the unlocking member is slidably connected to the strip-shaped aperture, the unlocking member driving the pivot member to rotate by engagement with the strip-shaped aperture when the unlocking member slides axially with the intermediate shaft.

6. The seat slide of claim 4, wherein said locking mechanism further comprises a second spring having one end abutting against said vertically moving member and the other end abutting against said seat fixing mechanism for driving said vertically moving member against the lower rail.

7. The seat slide apparatus of claim 4, wherein the manual mode is a handle operation, the handle is pivotally disposed on the seat fixing mechanism, an actuating end of the handle is drivingly connected to the first end of the pivot member, and the actuating end of the handle is operated to drive the pivoting member to rotate so as to switch the locking mechanism to the unlocking state.

8. The seat slide of claim 6, wherein the seat attachment mechanism has an upper rail slidably coupled to the lower rail.

9. The seat slide of claim 8, wherein the road wheels are pivotally disposed on the upper track.

10. The seat slide apparatus according to claim 8, wherein the vertical moving member is movably provided on the upper rail; and/or the pivot member is pivotally disposed on the upper rail.

11. The seat slide of claim 8, wherein the other end of the second spring abuts the upper rail.

12. The seat slide of any one of claims 1 to 7 wherein the lower track is provided with a rack and the road wheel is a gear engaged with the rack.

13. The seat slide apparatus according to any one of claims 4 to 7, wherein an end of the vertical moving member near the lower rail is provided with a toothed structure.

14. The seat slide of any of claims 1-7 wherein the motor is an electric motor.

15. A seat comprising the seat slide of any one of claims 1 to 14.

16. An automobile, characterized in that the automobile comprises a seat according to claim 15.