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CN-122008990-A - Leg holds in palm adjusting device, seat and vehicle

CN122008990ACN 122008990 ACN122008990 ACN 122008990ACN-122008990-A

Abstract

The invention discloses a leg rest adjusting device, a seat and a vehicle, and relates to the technical field of vehicle seats, wherein in the leg rest adjusting device, a rotary mounting part is movably connected to a mounting seat along the front-rear direction; the leg support supporting plate is rotatably connected to the rotation mounting part around the axis in the left-right direction, the driving assembly is in driving connection with the leg support supporting plate to drive the leg support supporting plate to rotate and move back and forth, the positioning structure comprises a positioning part and a matching part which are matched with each other, the positioning part is arranged on the mounting seat, the matching part is connected with the leg support supporting plate, and the positioning part can move in the front-back direction to keep matching with the matching part so as to position the leg support supporting plate. According to the technical scheme provided by the invention, the driving component drives the leg support supporting plate to do linear motion, and simultaneously the leg support supporting plate is synchronously rotated by utilizing the positioning structure, so that the extension length of the leg support supporting plate is increased, and the technical effect of increasing the adjustable range of the leg support supporting plate is achieved.

Inventors

  • LIANG LIMING
  • LAN WEI
  • PEI LEI

Assignees

  • 广汽丰田汽车有限公司

Dates

Publication Date
20260512
Application Date
20260324

Claims (10)

  1. 1. A leg rest adjustment device, comprising: a mounting base; a rotary mounting part movably connected to the mounting seat along the front-rear direction; The leg support supporting plate is rotatably connected to the rotation mounting part around the axis in the left-right direction; The driving component is in driving connection with the leg support supporting plate to drive the leg support supporting plate to rotate and move back and forth, and The positioning structure comprises a positioning part and a matching part which are matched with each other, the positioning part is arranged on the mounting seat, and the matching part is connected with the leg support supporting plate; the positioning parts can move in the front-back direction so as to be matched with the matched parts, one of the positioning parts and the matched parts is arranged in a plurality, and the positioning parts are distributed along the circumference of the rotation axis of the leg support supporting plate, so that the leg support supporting plate rotates to a plurality of angle positions, and one positioning part can be matched with one matched part so as to position the leg support supporting plate.
  2. 2. The leg rest adjustment device of claim 1, further comprising a positioning tooth portion having a plurality of positioning teeth to correspondingly form a plurality of the positioning portions and a mating tooth portion having a plurality of mating teeth to correspondingly form the plurality of mating portions; The positioning teeth can be movably connected with the mounting seat back and forth.
  3. 3. The leg rest adjustment device of claim 2, further comprising a linkage structure, the linkage structure comprising: a first connecting rod extending in the front-rear direction and having its front end hinged with the mounting base, and One end of the second connecting rod is hinged with the rear end of the first connecting rod; the positioning teeth are fixedly arranged at the other end of the second connecting rod.
  4. 4. The leg rest adjustment device of claim 3, wherein the connecting structure further comprises a third link: One end of the third connecting rod is in rotary connection with the other end of the second connecting rod corresponding to the central position of the positioning tooth part; the other end of the third connecting rod is in rotary connection with the rotary mounting part corresponding to the central position of the matched tooth part.
  5. 5. The leg rest adjustment device of claim 1, wherein the swivel mount includes a connecting shaft and extends in a left-right direction; the leg support plate is rotatably connected to the connecting shaft; The connecting shaft is connected with the mounting seat in a sliding manner along the front-back direction through a sliding connecting structure.
  6. 6. The leg rest adjustment device of claim 5, wherein the sliding connection structure comprises a limit rod and a limit hole extending in the front-rear direction and arranged on the mounting seat, and the limit rod penetrates through the limit hole and is fixedly connected with the connecting shaft.
  7. 7. The leg rest adjustment device of claim 1, wherein the swivel mount includes a connecting shaft extending in a left-right direction, and the drive assembly includes: the worm gear is meshed with each other, the axial direction of the worm gear extends along the front-rear direction, and a threaded hole penetrating along the front-rear direction is formed in the center of the worm gear; the threaded transmission rod extends along the front-rear direction and is in threaded transmission connection with the threaded hole; one end of the fourth connecting rod is hinged with one end of the threaded transmission rod, and the other end of the fourth connecting rod is hinged with the connecting shaft; And the driving motor is in driving connection with the worm.
  8. 8. A seat comprising a leg rest adjustment device as claimed in any one of claims 1 to 7.
  9. 9. The seat of claim 8, wherein the seat further comprises: A backrest frame; A seat adjusting device having a seat cushion frame; the connecting plate is fixedly connected with the cushion frame and is rotationally connected with the backrest frame along the left-right direction axis; The screw rod extends along the left-right direction and is fixedly connected with the backrest frame; And the adjusting motor is arranged on the connecting plate and is in driving connection with the screw rod so as to adjust the included angle between the cushion frame and the backrest frame.
  10. 10. A vehicle comprising a seat as claimed in any one of claims 8 to 9.

Description

Leg holds in palm adjusting device, seat and vehicle Technical Field The invention relates to the technical field of vehicle seats, in particular to a leg rest adjusting device, a seat and a vehicle. Background In the fixed arrangement space of the seat framework assembly, the extension amount of the leg support plate cannot be increased by simply lengthening the sliding rail and increasing the stroke of the motor, otherwise, peripheral parts can be interfered or the installation boundary is exceeded. Only simple linear movement results in insufficient total extension length, and the requirements of the leg support plate on the leg support range cannot be met. Disclosure of Invention The invention mainly aims to provide a leg rest adjusting device, a seat and a vehicle, which aim to lift the adjustable range of a leg rest supporting plate so as to meet the adjustment requirement of a user. The invention provides a leg rest adjusting device which comprises a mounting seat, a rotary mounting part, a leg rest supporting plate, a driving assembly and a positioning structure, wherein the rotary mounting part is movably connected to the mounting seat along the front-back direction, the leg rest supporting plate is rotatably connected to the rotary mounting part around the axis of the left-right direction, the driving assembly is in driving connection with the leg rest supporting plate to drive the leg rest supporting plate to rotate and move back and forth, the positioning structure comprises mutually matched positioning parts and matching parts, the positioning parts are arranged on the mounting seat, the matching parts are connected with the leg rest supporting plate, the positioning parts can move in the front-back direction to keep matching with the matching parts, one of the positioning parts and the matching parts is arranged in a plurality of circumferential directions along the rotation axis of the leg rest supporting plate, so that the leg rest supporting plate rotates to a plurality of angle positions, and one positioning part can be matched with one matching part to position the leg rest supporting plate. In an embodiment, the leg rest adjusting device further includes a positioning tooth portion having a plurality of positioning teeth to correspondingly form a plurality of the positioning portions and a mating tooth portion having a plurality of mating teeth to correspondingly form the plurality of mating portions; The positioning teeth can be movably connected with the mounting seat back and forth. In one embodiment, the leg rest adjustment device further comprises a link structure, the link structure comprising: a first connecting rod extending in the front-rear direction and having its front end hinged with the mounting base, and One end of the second connecting rod is hinged with the rear end of the first connecting rod; the positioning teeth are fixedly arranged at the other end of the second connecting rod. In an embodiment, the connecting structure further comprises a third link: One end of the third connecting rod is in rotary connection with the other end of the second connecting rod corresponding to the central position of the positioning tooth part; the other end of the third connecting rod is in rotary connection with the rotary mounting part corresponding to the central position of the matched tooth part. In one embodiment, the rotation mounting part includes a connection shaft and extends in a left-right direction; the leg support plate is rotatably connected to the connecting shaft; The connecting shaft is connected with the mounting seat in a sliding manner along the front-back direction through a sliding connecting structure. In an embodiment, the sliding connection structure comprises a limiting rod and a limiting hole which is arranged on the mounting seat and extends in the front-rear direction, and the limiting rod penetrates through the limiting hole and is fixedly connected with the connecting shaft. In one embodiment, the rotation mounting part includes a connection shaft extending in a left-right direction, and the driving assembly includes: the worm gear is meshed with each other, the axial direction of the worm gear extends along the front-rear direction, and a threaded hole penetrating along the front-rear direction is formed in the center of the worm gear; the threaded transmission rod extends along the front-rear direction and is in threaded transmission connection with the threaded hole; one end of the fourth connecting rod is hinged with one end of the threaded transmission rod, and the other end of the fourth connecting rod is hinged with the connecting shaft; And the driving motor is in driving connection with the worm. The invention further provides a seat, which comprises a leg rest adjusting device, wherein the seat comprises a mounting seat, a rotary mounting part, a leg rest supporting plate, a driving assembly and a positioning structure, the rotary mounting par