CN113119816A

CN113119816A - Concentric angle adjuster or rotary joint for seat

Info

Publication number: CN113119816A
Application number: CN202010024973.4A
Authority: CN
Inventors: 张润高; 周林鸣; 王晓阳; 陶平
Original assignee: Faurecia Wuxi Seating Components Co Ltd
Current assignee: Faurecia Wuxi Seating Components Co Ltd
Priority date: 2020-01-10
Filing date: 2020-01-10
Publication date: 2021-07-16

Abstract

The invention provides a seat concentric angle adjuster or rotary joint, comprising: core angle modulation ware, outer ring gear, output tooth cover, the core angle modulation ware includes: the outer gear ring is concentrically welded and matched with the eccentric gear of the core angle adjuster, the planetary gear of the core angle adjuster is eccentrically driven with the inner fixed gear ring, and the outer gear ring and the inner teeth of the output gear sleeve rotate eccentrically relative to each other; concentric axle sleeve matches with the output gear sleeve is concentric, outer ring gear welding assembly has fixed ring gear in the eccentric planetary gear axle sleeve structure department of core angle modulation ware, the inside eccentric planetary gear of core angle modulation ware forms coaxial eccentric planetary gear drive with outer ring gear output gear sleeve, output gear sleeve forms planetary gear's output stage with outer ring gear, output gear sleeve makes the output gear sleeve produce the concentric motion for the inside fixed ring gear of core angle modulation ware in the matching of concentric axle sleeve, this kind of concentric motion is eccentric to be eliminated, the transmission is more stable, user experience travelling comfort has very big promotion.

Description

Concentric angle adjuster or rotary joint for seat

Technical Field

The invention belongs to the field of seat concentric angle adjusters or rotary joints, and particularly relates to a seat concentric angle adjuster or rotary joint for eliminating eccentricity.

Background

A novel concentric angle adjuster belongs to the field of automobile seats, wherein a seat backrest needs to be subjected to angle adjustment, or a rotary motion mechanism is needed for joints needing rotary motion.

Disclosure of Invention

The invention aims to provide a concentric angle adjuster or a rotary joint for a seat, which eliminates eccentricity and has stable transmission and is realized by the following technical scheme: the method comprises the following steps: core angle modulation ware, outer ring gear, output tooth cover, the core angle modulation ware includes: the planetary gear transmission mechanism comprises a fixed gear ring, a planetary gear, a plastic disc arranged in the planetary gear, a power ring and an eccentric slide block, wherein the plastic disc is fixedly connected with a connecting rod, the plastic disc is in tooth-shaped meshing fit with the power ring, two eccentric slide blocks are distributed on the outer circumference of the power ring, the eccentric slide blocks are detachably and fixedly connected with the inner side of a planetary gear shaft, and the planetary gear is in less-differential gear transmission with the fixed gear ring; the outer gear ring is concentrically welded and matched with the outside of the core angle adjuster, and the outer gear ring is internally meshed in the output gear sleeve.

Preferably, the outer part of the power ring is divided into two sections, and a tooth-shaped structure is distributed on the outer part of one section and is meshed with the plastic turntable; the other section is a smooth side surface, and the eccentric sliding blocks are arranged on the smooth side surface and limited on the smooth side surface section by two tooth-shaped structures.

Preferably, a buffer spring is further arranged between the two eccentric sliding blocks.

Preferably, the outer ring gear is concentrically welded to match the outer portion of the journal of the planetary gear.

Preferably, the bottom of the output gear sleeve is assembled inside the concentric shaft sleeve and welded on the step surface of the output gear sleeve and the top plane of the concentric shaft sleeve through an output gear sleeve pressing plate.

Preferably, the inner diameter of the concentric shaft sleeve is fixedly connected with the outer diameter of the fixed gear ring through welding.

The invention has the beneficial effects that: the outer gear ring is concentrically welded and matched with the eccentric gear of the core angle adjuster, the planetary gear of the core angle adjuster is eccentrically driven with the internal fixed gear ring, and the outer gear ring and the internal gear of the output gear sleeve rotate eccentrically relative to each other; the concentric shaft sleeve is concentrically matched with the output gear sleeve, the outer gear ring is welded and assembled at the eccentric planetary gear shaft sleeve structure of the core angle adjuster, a fixed gear ring is arranged inside the core angle adjuster, the eccentric planetary gear inside the core angle adjuster and the outer gear ring output gear sleeve form coaxial eccentric planetary gear transmission, the output gear sleeve and the outer gear ring form an output stage of the planetary gear, the output gear sleeve enables the output gear sleeve to generate concentric motion relative to the fixed gear ring inside the core angle adjuster in the matching of the concentric shaft sleeve, the concentric motion difference is compared with the output of the fluctuation rotating track of the conventional core angle adjuster, eccentricity is eliminated, transmission is more stable, and user experience comfort is greatly improved.

Drawings

FIG. 1 is a schematic structural diagram of the present patent application;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a top plan view of FIG. 2 assembled;

FIG. 4 is a cross-sectional view A-A of FIG. 3;

FIG. 5 is a cross-sectional view taken about B-B of FIG. 4;

FIG. 6 is a cross-sectional view C-C of FIG. 5;

FIG. 7 is a schematic structural view of the concentric drive core recliner shown in FIG. 1 applied in the adjustment of a seat back of an automobile;

FIG. 8 is a schematic view of the concentric drive core recliner shown in FIG. 1 in use in a swivel seat application;

FIG. 9 is a cross-sectional view D-D of FIG. 8;

in the figure, 1, a fixed gear ring; 2. a concentric sleeve; 3. an output gear sleeve; 4. an output gear sleeve pressing plate; 5. an outer ring gear; 6. a planetary gear; 7. a connecting rod; 9. a plastic turntable; 11. a power ring; 12. an eccentric slider; 13. a core angle adjuster; 14. fixing a bracket; 15. a seat back; 16. a stationary seat pan assembly; 17. a cloud base basin assembly; 18. a concentric angle adjuster.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 2, 3 and 4, the present patent provides a core recliner, wherein power from a motor is input into the core recliner through a connecting rod 7 as power input, and the core recliner 13 comprises: the device comprises a planetary gear 6, a fixed gear ring 1 assembled outside the planetary gear 6, a power ring 11, an eccentric slide block 12 and a plastic turntable 9 which are arranged inside a shaft of the planetary gear 6, wherein the fixed gear ring 1 of a core angle adjuster and the planetary gear 6 form small-tooth-difference transmission; the plastic rotary table 9 is sleeved on the connecting rod 7, a tooth-shaped structure is arranged below the plastic rotary table 9 and meshed with the tooth-shaped structure on the periphery of the power ring 11, and when the connecting rod 7 rotates, the interior of the core angle adjuster is transmitted to the power ring 11 through the plastic rotary table 9; the number of the eccentric sliding blocks 12 is 2, the eccentric sliding blocks are assembled outside the power ring 11, and the power ring 11 rotates to drive the 2 eccentric sliding blocks 12 to rotate; the eccentric sliding block 12 is connected with a gear shaft of the planetary gear 6, the eccentric sliding block 12 transmits the power moment to the planetary gear 6, and the planetary gear 6 and the fixed gear ring 1 are meshed through internal teeth to form internal tooth difference transmission with the eccentricity of e.

Preferably, the power ring 11 is divided into two sections, and a tooth-shaped structure is distributed on one section and is meshed with the plastic turntable 9; one section is a smooth side surface, and 2 eccentric sliding blocks 12 are arranged on the smooth side surface and limited on the smooth side surface section by two tooth-shaped structures.

Preferably, a buffer spring is further arranged on one side adjacent to the two eccentric sliding blocks 12.

As shown in fig. 1-6, the present application further provides a concentric drive core recliner including the above core recliner, comprising: an output gear sleeve pressure plate 4, an output gear sleeve 3, an outer gear ring 5 and a concentric shaft sleeve 2,

the outer gear ring 5 is concentrically welded and matched with the core angle adjuster 13, and the outer gear ring 5 and the planetary gear 6 form a duplex planetary gear; the outer gear ring 5 and the output gear sleeve 3 are in internal gear engagement to form output-stage planetary gear internal tooth difference meshing transmission, the outer diameter of the output gear sleeve 3 is concentrically matched with the inner diameter of the concentric shaft sleeve 2, the inner diameter of the concentric shaft sleeve 2 and the outer diameter of the fixed gear ring 1 are fixed in a welding mode to realize concentric rotary motion relative to the concentric shaft sleeve, and the outer diameter of the fixed gear ring relative to the core angle adjuster 13 is also in concentric motion.

Preferably, the outer ring gear 5 is welded to the journal portion of the gear shaft of the planetary gear 6 of the core recliner 13.

Preferably, the bottom plane of the output gear sleeve 3 is highly positioned with the spigot 2d of the concentric shaft sleeve 2, the top plane of the output gear sleeve 3 is matched with the bottom top plane of the output gear sleeve pressing plate 4, the output gear sleeve pressing plate 4 is welded and fixed with the output gear sleeve 3, and the output gear sleeve 3 is axially positioned.

As shown in fig. 7, when the concentric transmission core angle adjuster is used for adjusting the automobile seat backrest, the power of the motor is input through the connecting rod 7, the seat backrest 15 is welded on 6 bosses of the concentric angle adjuster, the fixed bracket 14 is fixed on a seat basin, and when the motor rotates, the concentric angle adjuster reduces the speed of the seat backrest 15 to realize concentric rotation adjustment relative to the concentric shaft sleeve.

In the application of the rotary seat, as shown in fig. 8 and 9, the power of the motor is input through the connecting rod 7, the fixed seat basin component 16 is welded on the boss of the fixed gear ring 1 of the concentric angle adjuster, the rotary motion seat basin component 17 is welded with the output gear sleeve 3, and when the motor rotates, the concentric rotary motion of the seat basin is realized through the speed reduction back of the concentric angle adjuster.

It is noted that the terms "center", "upper", "lower", "left", "right" and "left" are used herein,

The orientations or positional relationships indicated as "vertical", "horizontal", "inside", "outside", and the like are based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and

the description is simplified and does not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular 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.

Finally, it should be noted that: although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: modifications and equivalents may be made thereto without departing from the spirit and scope of the invention, and the appended claims are intended to cover such modifications and equivalents as fall within the true spirit and scope of the invention.

Claims

1. A seat concentric angle adjuster or rotary joint, characterized in that: the method comprises the following steps: core angle modulation ware (13), outer ring gear (5), output tooth cover (3), core angle modulation ware (13) include: the transmission mechanism comprises a fixed gear ring (1), a planetary gear (6), a plastic disc (9) arranged inside the planetary gear (6), a power ring (11) and eccentric sliders (12), wherein the plastic disc (9) is fixedly connected with a connecting rod (7), the plastic disc (9) is meshed with the power ring (11) in a tooth shape, the outer circumference of the power ring (11) is also provided with two eccentric sliders (12), the eccentric sliders (12) are detachably and fixedly connected with the inner side of a shaft of the planetary gear (6), and the planetary gear (6) and the fixed gear ring (1) are in less differential gear transmission; the outer gear ring (5) is concentrically welded and matched with the outside of the core angle adjuster (13), and the outer gear ring (5) is internally meshed in the output gear sleeve (3).

2. A seat recliner or swivel according to claim 1 wherein: the outer part of the power ring (11) is divided into two sections, and a tooth-shaped structure is distributed on the outer part of one section and is meshed with the plastic turntable (9); the other section is a smooth side surface, and 2 eccentric sliding blocks 12 are arranged on the smooth side surface and limited on the smooth side surface section by two tooth-shaped structures.

3. A seat recliner or swivel according to claim 2 wherein: a buffer spring is also arranged between the two eccentric sliding blocks 12.

4. A seat recliner or swivel according to claim 1 wherein: the outer gear ring (5) is concentrically welded and matched with the outer portion of a shaft neck of the planetary gear (6).

5. A seat recliner or swivel according to claim 1 wherein: the bottom of the output gear sleeve (3) is assembled inside the concentric shaft sleeve (2) and welded on a step surface (3e) of the output gear sleeve (3) and the top plane of the concentric shaft sleeve (2) through an output gear sleeve pressure plate (4).

6. A seat recliner or swivel according to claim 5 wherein: the inner diameter of the concentric shaft sleeve (2) is fixedly connected with the outer diameter of the fixed gear ring (1) through welding.