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CN-224210949-U - Headrest overturning structure and automobile seat

CN224210949UCN 224210949 UCN224210949 UCN 224210949UCN-224210949-U

Abstract

The utility model provides a headrest overturning structure and an automobile seat, and relates to the technical field of automobile seat equipment. The headrest overturning structure comprises a mounting base, an angle adjuster, a headrest driving piece, a rotation synchronizing shaft and a headrest connecting piece, wherein the headrest driving piece is fixedly arranged on the mounting base, the mounting base can be mounted on a seat backrest framework, the angle adjusters are arranged at two ends of the mounting base, the headrest driving piece is in transmission connection with the angle adjusters through the rotation synchronizing shaft, and the headrest connecting piece is arranged on the angle adjuster. The car seat includes a headrest tilting structure. The technical effect of reducing the shaking clearance of the headrest is achieved.

Inventors

  • WANG QIAN
  • SUN SHAN
  • WANG MING

Assignees

  • 东实李尔汽车座椅有限公司技术中心

Dates

Publication Date
20260508
Application Date
20250516

Claims (10)

  1. 1. The headrest overturning structure is characterized by comprising a mounting base (100), an angle adjuster (200), a headrest driving piece (300), a rotation synchronizing shaft (400) and a headrest connecting piece (500); The headrest driving piece (300) is fixedly arranged on the mounting base (100), the mounting base (100) can be mounted on a seat backrest framework (600), the angle adjusters (200) are arranged at two ends of the mounting base (100), and the headrest driving piece (300) is in transmission connection with the angle adjusters (200) through the rotation synchronizing shafts (400); The headrest connector (500) is disposed on the recliner (200).
  2. 2. The headrest overturning structure according to claim 1, characterized in that a drive mounting bracket (110) for mounting the headrest driver (300) is provided on the mounting base (100).
  3. 3. The headrest overturning structure according to claim 2, characterized in that the headrest driver (300) includes a drive motor (310) and a decelerator (320), the drive motor (310) being provided on the drive mounting bracket (110), the decelerator (320) being provided on the drive motor (310), the decelerator (320) being in transmission connection with the rotation synchronization shaft (400).
  4. 4. The headrest turning structure according to claim 1, characterized in that the recliner (200) is fixedly provided on the mounting base (100), and a rotating portion of the recliner (200) is provided with a recliner switching housing (210); the headrest connector (500) is connected with the recliner adapter housing (210).
  5. 5. The headrest overturning structure according to claim 4, characterized in that the headrest connector (500) includes a headrest mounting bracket (510) and a transmission sleeve (520); The transmission sleeve (520) is sleeved on the rotation synchronous shaft (400) in an empty mode, and two ends of the transmission sleeve (520) are connected with the angle adjuster switching outer cover (210); The headrest mounting bracket (510) is disposed on the transmission sleeve (520).
  6. 6. The headrest overturning structure according to claim 5, characterized in that an end of the headrest mounting bracket (510) remote from the transmission sleeve (520) is provided with a seat headrest (700).
  7. 7. The headrest overturning structure according to claim 5, characterized in that a rotation limit lever (211) is provided on the recliner adapting housing (210); Two rotation limiting stop rods (120) used for limiting the rotation range of the rotation limiting rod (211) are arranged on the mounting base (100).
  8. 8. The headrest overturning structure according to any one of claims 1 to 7, characterized in that a coupling nut (130) for coupling with the seatback frame (600) is provided on the mounting base (100).
  9. 9. The headrest overturning structure according to any one of claims 1 to 7, characterized in that the rotation synchronizing shaft (400) adopts a spline shaft.
  10. 10. An automobile seat comprising the headrest tilting structure according to any one of claims 1 to 9.

Description

Headrest overturning structure and automobile seat Technical Field The utility model relates to the technical field of automobile seat equipment, in particular to a headrest overturning structure and an automobile seat. Background In the current automotive market, seat recline to bed requirements have become increasingly common. When the two rows of seats are reclined, the seat headrest interferes with the vehicle body, requiring a set of mechanisms to turn the headrest 90-180 degrees, thereby hiding the headrest under the backrest. The mechanism is arranged inside the seat back, and the structural arrangement needs to be as compact as possible, because the gap of the mechanism is enlarged on the headrest and perceived by a passenger, and the requirement for the gap performance is high. The existing headrest is locked by means of the structure of the driving motor, and because the headrest is larger than a lever of the mechanism, the mechanism is stressed greatly in a backrest static strength experiment, and the requirement on the strength of the mechanism is very high. And because the driving motor has a motion clearance, the clearance is more obvious after the lever is amplified on the headrest. Disclosure of utility model The utility model aims to provide a headrest overturning structure and an automobile seat, so as to solve the technical problem of large headrest shaking gap in the prior art. In a first aspect, an embodiment of the present utility model provides a headrest overturning structure, including a mounting base, an recliner, a headrest driving member, a rotation synchronization shaft, and a headrest connecting member; The headrest driving piece is fixedly arranged on the mounting base, the mounting base can be mounted on a seat backrest framework, the angle adjusters are arranged at two ends of the mounting base, and the headrest driving piece is in transmission connection with the angle adjusters through the rotation synchronous shafts; The headrest connector is arranged on the angle adjuster. With reference to the first aspect, an embodiment of the present utility model provides a possible implementation manner of the first aspect, wherein the mounting base is provided with a driving mounting bracket for mounting the headrest driving element. With reference to the first aspect, an embodiment of the present utility model provides a possible implementation manner of the first aspect, where the headrest driving piece includes a driving motor and a speed reducer, the driving motor is disposed on the driving mounting bracket, the speed reducer is disposed on the driving motor, and the speed reducer is in transmission connection with the rotation synchronization shaft. With reference to the first aspect, the embodiment of the present utility model provides a possible implementation manner of the first aspect, where the angle adjuster is fixedly disposed on the mounting base, and a rotating portion of the angle adjuster is provided with an angle adjuster switching housing; the headrest connecting piece is connected with the angle adjuster switching outer cover. With reference to the first aspect, the embodiment of the present utility model provides a possible implementation manner of the first aspect, wherein the headrest connector includes a headrest mounting bracket and a transmission sleeve; The transmission sleeve is sleeved on the rotary synchronous shaft in an empty mode, and two ends of the transmission sleeve are connected with the angle adjuster switching outer cover; the headrest mounting bracket is arranged on the transmission sleeve. With reference to the first aspect, the embodiment of the present utility model provides a possible implementation manner of the first aspect, wherein an end of the headrest mounting bracket, which is far away from the transmission sleeve, is provided with a seat headrest. With reference to the first aspect, the embodiment of the present utility model provides a possible implementation manner of the first aspect, wherein a rotation limiting rod is disposed on the angle adjuster switching housing; And two rotation limiting stop rods used for limiting the rotation range of the rotation limiting rod are arranged on the mounting base. With reference to the first aspect, an embodiment of the present utility model provides a possible implementation manner of the first aspect, where the mounting base is provided with a connection nut for connecting with the seatback frame. With reference to the first aspect, the embodiment of the present utility model provides a possible implementation manner of the first aspect, wherein the rotation synchronization shaft adopts a spline shaft. In a second aspect, an embodiment of the present utility model provides an automobile seat, including the headrest tilting structure. The beneficial effects are that: The embodiment of the utility model provides a headrest overturning structure which comprises a mounting base, an angle adj