CN210707004U

CN210707004U - Quick seat falling mechanism for automobile

Info

Publication number: CN210707004U
Application number: CN201921146331.0U
Authority: CN
Inventors: 林东; 吴孔银; 黄纪涛
Original assignee: Zhejiang Tiancheng Seat Co Ltd
Current assignee: Zhejiang Tiancheng Seat Co Ltd
Priority date: 2019-07-19
Filing date: 2019-07-19
Publication date: 2020-06-09
Anticipated expiration: 2029-07-19

Abstract

The utility model discloses a car seat mechanism of falling fast, it had both had the function of electrical control back angle, also had to fall the back fast through manual mode. The novel seat plate structure comprises a seat plate, a pawl matching piece and a connecting plate, wherein a shaft pin is arranged on the seat plate, the shaft pin is also provided with the pawl matching piece, the pawl matching piece can rotate relative to the seat plate, a pawl is rotatably arranged on the seat plate, a pin is fixed on the connecting plate, and the pawl matching piece is provided with a pin groove for accommodating the pin; the pawl fitting piece is restricted first direction of rotation by the pawl when pawl and pawl fitting piece block mutually, thereby restricts the first direction of rotation of connection pad with the first lateral wall in pin groove with the pin hook, and the pawl fitting piece still is blockked by the axle is reverse when pawl and pawl fitting piece block mutually to thereby the second lateral wall in pin groove supplies the pin to offset and restricts the second direction of rotation of connection pad.

Description

Quick seat falling mechanism for automobile

Technical Field

The utility model belongs to the technical field of car seat, specifically speaking relates to a car seat mechanism of falling fast.

Background

At present, in terms of the adjustment mode of the automobile seat backrest, the backrest angle is adjusted either in an electric mode or in a manual mode. The backrest angle adjusting mode is single.

Disclosure of Invention

The utility model aims at providing a car seat mechanism of falling fast, it both has the function of electrical control back angle, also has to fall the back forward fast through manual mode.

In order to solve the technical problem, the utility model discloses a technical scheme is:

a quick seat falling mechanism for an automobile comprises a backrest side plate, wherein a motor is mounted on the backrest side plate, the output end of the motor is connected with a rotating shaft, the rotating shaft is also connected with a shaft sleeve on a seat angle adjuster, a bottom shell of the seat adjuster is fixedly connected with the backrest side plate, a connecting disc is fixed on an end cover of the seat adjuster, a shaft is fixed on the connecting disc, the shaft is rotatably arranged on a seat plate, a shaft pin is arranged on the seat plate, a pawl matching piece is further arranged on the shaft pin and can rotate relative to the seat plate, a pawl is rotatably arranged on the seat plate, a pin column is fixed on the connecting disc, and the pawl matching piece is provided with a pin column groove for accommodating the pin column; when the pawl and the pawl matching piece are clamped, the pawl matching piece is limited in a first rotating direction by the pawl, the pin is hooked by the first side wall of the pin groove so as to limit the first rotating direction of the connecting disc, the pawl matching piece is also reversely blocked by the shaft while the pawl and the pawl matching piece are clamped, and the pin is abutted by the second side wall of the pin groove so as to limit the second rotating direction of the connecting disc; the pawl and the pawl mating piece are always kept clamped through the constant holding mechanism; the operating mechanism lifts the pawl to release the engagement between the pawl and the pawl mating member, and the first rotating direction and the second rotating direction are opposite.

On the basis of the above scheme and as a preferable scheme of the scheme: the pawl mating part is provided with a mating part for the pin to contact during the return rotation of the pin.

On the basis of the above scheme and as a preferable scheme of the scheme: the constant holding mechanism comprises a tension spring, one end of the tension spring is connected with the pawl, and the other end of the tension spring is connected with the pawl matching piece.

On the basis of the above scheme and as a preferable scheme of the scheme: the pawl is connected with the seat board through a linkage shaft, the pawl is fixedly connected with the linkage shaft, and the linkage shaft is rotatably connected with the seat board.

On the basis of the above scheme and as a preferable scheme of the scheme: the operating mechanism comprises a linkage rod fixedly connected with the linkage shaft and a pull wire connected with the linkage rod.

On the basis of the above scheme and as a preferable scheme of the scheme: the backrest side plate is provided with a fixed plate, and the connecting disc is provided with a limiting block.

On the basis of the above scheme and as a preferable scheme of the scheme: the connecting disc is provided with a limiting bulge, and the linkage shaft rotates for an angle along the first rotating direction at the connecting disc and then the limiting bulge is abutted.

On the basis of the above scheme and as a preferable scheme of the scheme: the first rotation direction is counterclockwise, and the second rotation direction is clockwise.

Compared with the prior art, the utility model outstanding and profitable technological effect is:

the utility model discloses a car seat mechanism of falling fast through setting up seat angle regulator, connection pad, pawl and pawl fitting piece and can realize that car seat mechanism of falling fast had both had the function of electrical control back angle, had also had and fell the back forward fast through manual mode to satisfy back user demand.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a partial structural view of a side view of the present invention.

Fig. 3 is a schematic view of a partial structure (unassembled seat plate) of the present invention.

Fig. 4 is a cross-sectional view of the present invention.

Detailed Description

In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments obtained by a person skilled in the art without making any inventive step, based on the given embodiments, fall within the scope of protection of the present application.

In the description of the present application, it is to be understood that the terms "upper", "lower", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

In the description of the present application, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated.

In the description of the present application, the terms "clockwise," "counterclockwise," "left," and "right" are based on the perspective of FIG. 3.

The utility model discloses a car seat mechanism of falling fast, it had both had the function of electrical control back angle, also had and fell the back forward fast through manual mode to guarantee the rigidity of back (the invariant of back for the seatpad angle) through mechanical structure when the back is in normal use state.

After the automobile seat rapid-falling mechanism is applied to an automobile, particularly a two-door designed automobile, a backrest turns forwards for an angle, and then the automobile seat rapid-falling mechanism is in a falling state, so that a passenger can conveniently enter a back row seat.

The utility model discloses in, a car seat mechanism of falling fast, including back curb plate 1, motor 2, seat angle regulator 3, connection pad 4, axle 5, bedplate 6, pivot 7, pawl 8, pawl fitting piece 9, normal retaining mechanism 10, operating device 11.

Among them, the seat angle adjuster 3 is a conventional one in the art, and includes a boss 31, a bottom case 32, and an end cap 33. The bottom shell 32 and the end cap 33 of the seat angle adjuster 3 have a clutch function, and specifically, when the shaft sleeve 31 inputs torque (the motor 2 is used as a power source to input torque to the shaft sleeve through a rotating shaft (not shown in the figure), and the shaft sleeve 31 is used as an active part in the seat angle adjuster 3), the shaft sleeve 31 only drives the bottom shell 32 to rotate, but the shaft sleeve 31 does not drive the end cap 33 to rotate, at this time, the bottom shell 32 and the end cap 33 are relatively rotated, when the shaft sleeve 31 does not input torque (the motor 2 is not operated, and the rotating shaft does not input torque to the shaft sleeve 31), the bottom shell 32 and the end cap 33 form a rigid connection, and the bottom shell 32 and the end cap 33 can transmit torque.

In the description of the present application, the seat plate 6 is a part of the seat cushion frame, or a member fixed to the seat cushion frame.

As shown in fig. 1, the quick reclining mechanism of a vehicle seat includes a backrest side plate 1, on which a motor 2 is mounted, the motor 2 being mounted inside the backrest side plate 1. The output end of the motor 2 is connected with a rotating shaft (not shown in the figure).

The rotating shaft is also connected with a shaft sleeve 31 on the seat angle adjuster 3, and a bottom shell 32 of the seat angle adjuster 3 is fixedly connected with the backrest side plate 1. Specifically, the end of the rotating shaft penetrates the backrest side plate 1 and extends outside the backrest side plate 1 and into the seat angle adjuster 3 installed outside the backrest side plate 1, and specifically, the end of the rotating shaft is connected with the bushing 31 of the seat angle adjuster 3. Typically, the end of the shaft is splined to the sleeve 31 so that the shaft (not shown) transmits torque to the sleeve 31.

A connection plate 4 is fixed to an end cover 33 of the seat angle adjuster 3, and the connection plate 4 is linked with the end cover 33 in the circumferential direction of the end cover 33. Preferably, a protrusion is provided on the end cap 33, and a through groove adapted to the protrusion is provided on the connection disc 4. The ability to transmit torque between the end cap 33 and the connecting disc 4 is increased by the configuration of the projections and the through slots.

The connecting disc 4 is fixed with a shaft 5, and the shaft 5 is rotatably arranged on a seat plate 6. As shown in the figures, an annular groove 51 is provided on the shaft 5, and correspondingly a through hole is provided on the seat plate 6, the periphery of the through hole being clearance-fitted in the annular groove. Thereby, the shaft 5 is rotatably mounted on the seat plate 6, and the seat angle adjuster 3 is also mounted between the seat plate 6 and the back side plate 1.

As shown in fig. 3, a shaft pin 7 is provided on the seat plate 6, the shaft pin 7 is located at an upper portion of the shaft 5, a click fitting 9 is further provided on the shaft pin 7, and the click fitting 9 is rotatable with respect to the seat plate 6. In one embodiment, the click-engaging element 9 is fixed to the axle pin 7, and the axle pin 7 is rotatably connected to the seat plate 6. The axle pin 7 and the seat plate 6 are connected in a similar way as the axle 5 and the seat plate 6.

A pawl 8 is rotatably arranged on the seat plate 6. As shown, the pawl 8 is located on the upper portion of the pawl mating member 9, and in one embodiment, the pawl 8 is connected to the seat plate 6 by a linkage shaft 101. Specifically, the pawl 8 is fixedly connected with a linkage shaft 101, and the linkage shaft 101 is rotatably connected with the seat plate 6.

The connecting disc 4 is fixed with a pin 12, and the pawl matching piece 9 is provided with a pin groove 13 for accommodating the pin 12.

The pawl engagement member 9 is limited in a first rotational direction by the pawl 8 when the pawl 8 and the pawl engagement member 9 are engaged. Specifically, as shown in fig. 3, pawl fitting piece 9 is provided with a ratchet portion 91, and pawl portion 81 is provided on pawl 8, and when pawl portion 81 abuts on the left side of ratchet portion 91 (as shown in fig. 3), pawl fitting piece 9 is restricted in the first rotational direction by pawl 8 under the restriction of pawl 8, and at this time, pin 12 is hooked by first side wall 131 of pin groove 13 to restrict the first rotational direction of connection plate 4. In this embodiment, the rotation axis of the pawl 8 and the rotation axis of the pawl fitting member 9 are located on the left side of the pawl portion 81 and the ratchet portion 91, and when the pawl 8 and the pawl fitting member 9 are engaged, the pawl fitting member 9 is restricted in the counterclockwise rotation direction by the pawl 8, and correspondingly, the connection plate 4 is also restricted in the counterclockwise rotation direction by the pin groove 13.

The pawl counterpart 9 is also blocked against the shaft 5 at the same time as the pawl 8 engages with the pawl counterpart 9, in particular the pawl counterpart 9 has a portion 92 for engaging with the shaft 5 so that the pawl counterpart 9 is blocked. The second side wall 132 of the pin groove 13 is abutted by the pin 12 to limit the second rotation direction of the connecting disc 4. In this embodiment, the portion 92 is located on the same side as the ratchet portion 91, so that the pawl mating member 9 is restricted from rotating clockwise by the shaft 5, and correspondingly, the connecting plate 4 is also restricted from rotating clockwise by the second side wall 132 of the pin slot 13.

In the present application, the first and second rotational directions are opposite directions, and the connection disc can thus be fixed to restrict its rotation.

The pawl 8 and the pawl mating part 9 are kept engaged constantly by a constant holding mechanism 10. In one embodiment, as shown in the figures, the constant holding mechanism 10 comprises a tension spring having one end connected to the pawl 8 and the other end connected to the pawl mating member 9. Through the extension spring structure, avoid pawl 8 and pawl fitting piece to break away from each other when not receiving external force.

The pawl 8 is lifted by the operating mechanism 11 to release the engagement between the pawl 8 and the pawl engagement piece 9. In one embodiment, as shown in the figure, the operating mechanism 11 includes a linkage rod 102 fixedly connected to the linkage shaft 101, and a pull wire 103 connected to the linkage rod 102. Wherein the linkage rod 102 is positioned at the outer side of the seat plate 6. In a specific application, by pulling the pull wire 103, the linkage rod 102 rotates counterclockwise, and simultaneously the pawl 8 also rotates counterclockwise against the pulling force of the tension spring, so that the pawl 8 is separated from the pawl mating member 9. In this way, the detent fitting 9 can be rotated by an angle in the counterclockwise direction by an external force. It can be understood that, when the backrest is rotated counterclockwise by an external force, the backrest side plate 1 drives the connecting plate to rotate at an angle in the counterclockwise direction through the bottom shell 32 and the end cover 33, and the backrest can be quickly laid down manually by the operating mechanism 11.

When the rotating shaft is driven by the motor 2, the angle of the backrest is adjusted by the motor 2, and the connecting disc 4 can still be limited because the bottom case 32 and the end cover 33 can rotate relatively, so that the rigidity of the backrest can be ensured after the angle of the backrest is adjusted by the motor 2.

In one embodiment, the detent fitting 9 is provided with a fitting portion 14 which the pin 12 contacts during its return rotation. In particular use, during the period from the backrest being rotated from the reclined position to use, the pin 12 acts on the engagement portion to force the pawl engagement member 9 to rotate clockwise so that the pawl engagement member 9 is in engagement with the pawl 8.

The backrest side plate 1 is provided with a fixing plate 15, and the connecting plate 4 is provided with a limiting block 16. When the backrest angle is adjusted in the power mode, the maximum rotation angle of the connection plate 4 is limited by the cooperation of the fixed plate 15 and the stopper 16. The connecting disc 4 is further provided with a limiting protrusion 17, as shown in fig. 4, the limiting protrusion 17 is located on the right side of the linkage shaft 101, after the connecting disc rotates anticlockwise for an angle, the linkage shaft 101 is abutted by the limiting protrusion to limit the anticlockwise rotation angle of the connecting disc, and therefore the backrest can be quickly laid down in a manual mode, and the backrest laying angle is limited.

As another embodiment of the present invention, the pawl 8 and the pawl fitting member 9 are arranged in opposite directions, that is, the two embodiments form a symmetrical layout.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a car seat mechanism of falling fast, includes the back curb plate, installs the motor on the back curb plate, and the output of motor is connected with the pivot, and the pivot still is connected with the axle sleeve on the seat angle regulator, the drain pan of seat regulator with back curb plate fixed connection, its characterized in that: a connecting disc is fixed on an end cover of the seat adjuster, a shaft is fixed on the connecting disc, the shaft is rotatably arranged on the seat plate, a shaft pin is arranged on the seat plate, a pawl matching piece is further arranged on the shaft pin, the pawl matching piece can rotate relative to the seat plate, a pawl is rotatably arranged on the seat plate, a pin column is fixed on the connecting disc, and a pin column groove for accommodating the pin column is formed in the pawl matching piece; when the pawl and the pawl matching piece are clamped, the pawl matching piece is limited in a first rotating direction by the pawl, the pin is hooked by the first side wall of the pin groove so as to limit the first rotating direction of the connecting disc, the pawl matching piece is also reversely blocked by the shaft while the pawl and the pawl matching piece are clamped, and the pin is abutted by the second side wall of the pin groove so as to limit the second rotating direction of the connecting disc; the pawl and the pawl mating piece are always kept clamped through the constant holding mechanism; the operating mechanism lifts the pawl to release the engagement between the pawl and the pawl mating member, and the first rotating direction and the second rotating direction are opposite.

2. The vehicle seat quick-dump mechanism according to claim 1, wherein the pawl engagement member is provided with an engagement portion for the pin to contact during return rotation thereof.

3. The car seat quick-falling mechanism according to claim 1, wherein the constant holding mechanism comprises a tension spring, one end of the tension spring is connected with the pawl, and the other end of the tension spring is connected with the pawl fitting piece.

4. The vehicle seat quick-falling mechanism according to claim 1, wherein the pawl is connected with the seat plate through a linkage shaft, the pawl is fixedly connected with the linkage shaft, and the linkage shaft is rotatably connected with the seat plate.

5. The vehicle seat quick-dumping mechanism of claim 1, wherein said operating mechanism comprises a linkage rod fixedly connected to said linkage shaft, and a pull wire connected to said linkage rod.

6. The quick reclining mechanism of a car seat as set forth in claim 1, wherein a fixing plate is provided on said backrest side plate, and a stopper is provided on said connecting plate.

7. The mechanism of claim 1, wherein the connecting plate is provided with a limiting protrusion, and the linkage shaft is pressed against the limiting protrusion after the connecting plate rotates for an angle along the first rotating direction.

8. The quick reclining mechanism of a vehicle seat as set forth in any of claims 1 to 7, wherein said first rotational direction is counterclockwise and said second rotational direction is clockwise.