Headrest

Patent metadata

Field	Value
Publication number	US-11890979-B2
Application number	US-202017761922-A
Country	US
Kind code	B2
Filing date	Sep 7, 2020
Priority date	Sep 20, 2019
Publication date	Feb 6, 2024
Grant date	Feb 6, 2024

Abstract

The load applied to a connecting member that connects a second horizontal shaft to a base member in a headrest for a vehicle is reduced. The headrest comprises a pillar member including a right and a left vertical shaft extending upward from an upper part of a seat back, a right and a left first horizontal shaft extending forward from upper ends of the respective vertical shafts, each first horizontal shaft including a curved section, and a second horizontal shaft extending laterally between front parts of the first horizontal shafts, a base member including a base vertical portion extending vertically ahead of the vertical shafts, a base upper portion extending rearward from an upper end of the base vertical portion, and a right and a left first hole formed in the base upper portion to have the respective curved sections or the respective vertical shafts passed therethrough, a connecting member pivotably connecting the base upper portion to the second horizontal shaft, and a pad supported by the base member.

First claim

The invention claimed is:

1. A headrest for a vehicle seat, comprising:
a pillar member including a right and a left vertical shaft extending upward from an upper part of a seat back, a right and a left first horizontal shaft extending forward from upper ends of the respective vertical shafts, each first horizontal shaft including a curved section, and a second horizontal shaft extending laterally between front parts of the first horizontal shafts;
a base member including a base vertical portion extending vertically ahead of the vertical shafts, a base upper portion extending rearward from an upper end of the base vertical portion, and a right and a left first hole formed in the base upper portion to have the respective curved sections or the respective vertical shafts passed therethrough;
a connecting member pivotably connecting the base upper portion to the second horizontal shaft; and
a pad supported by the base member,
wherein the first holes each consist of an elongated hole extending in a fore and aft direction, and at least one of a front end and a rear end of the first hole is formed in a substantially triangular shape.

2. The headrest according to claim 1 , wherein the connecting member includes a channel shaped engaging portion pivotably receiving the second horizontal shaft, and a first fastening portion extending from a side edge of the engaging portion and fastened to the base upper portion via a fastening member and positioned behind the second horizontal shaft.

3. The headrest according to claim 2 , wherein the engaging portion has a semicircular cross section which is open rearward.

4. The headrest according to claim 2 , wherein the connecting member is provided with a second fastening portion extending from another side edge of the engaging portion,
a part of the base member located at a boundary between the base upper portion and the base vertical portion is provided with a base hole which is passed through the base member,
the second horizontal shaft is located at a boundary between the base upper portion and the base vertical portion,
the first fastening portion is located on an upper surface of the base upper portion,
the second fastening portion is passed through the base hole and positioned on a lower surface of the base upper portion, and
the fastening member includes a bolt passed through the first fastening portion, the base upper portion and the second fastening portion, and a nut threadably engaging the bolt.

5. The headrest according to claim 4 , wherein the nut is welded to the second fastening portion.

6. The headrest according to claim 4 , wherein the engaging portion protrudes from a head of the bolt in an axial direction of the bolt.

7. The headrest according to claim 6 , wherein the pad is in contact with the first fastening portion between the engaging portion and the head of the bolt.

8. The headrest according to claim 1 , wherein an upper part of the base vertical portion is provided with a first bulging portion bulging more away from the base upper portion than the second horizontal shaft.

9. The headrest according to claim 8 , wherein a part of the first bulging portion on a side of the second horizontal shaft is formed with a recess receiving a part of the connecting member.

10. The headrest according to claim 8 , wherein the first bulging portion is positioned between the left and right vertical shafts in front view.

11. The headrest according to claim 8 , wherein the base vertical portion is provided with at least one second bulging portion that bulges forward and extends downward from the first bulging portion.

12. The headrest according to claim 11 , wherein the base vertical portion is provided with a third bulging portion that bulges forward and extends along an edge of the base vertical portion, and the second bulging portion and the third bulging portion are connected to each other.

13. The headrest according to claim 12 , wherein a plurality of reinforcing ribs extending in a direction orthogonal to a lengthwise direction are provided on rear surfaces of the second bulging portion and the third bulging portion.

14. The headrest according to claim 1 , wherein the base upper portion is provided with a right and a left groove which are recessed downward and extend in a fore and aft direction, the first holes being formed at rear end parts of the respective grooves.

15. The headrest according to claim 1 , wherein the second horizontal shaft is interposed between the connecting member and the base member.

16. A vehicle seat provided with the headrest according to claim 1 .

17. A headrest for a vehicle seat, comprising:
a pillar member including a right and a left vertical shaft extending upward from an upper part of a seat back, a right and a left first horizontal shaft extending forward from upper ends of the respective vertical shafts, each first horizontal shaft including a curved section, and a second horizontal shaft extending laterally between front parts of the first horizontal shafts;
a base member including a base vertical portion extending vertically ahead of the vertical shafts, a base upper portion extending rearward from an upper end of the base vertical portion, and a right and a left first hole formed in the base upper portion to have the respective curved sections or the respective vertical shafts passed therethrough;
a connecting member pivotably connecting the base upper portion to the second horizontal shaft; and
a pad supported by the base member,
wherein the pillar member includes a third shaft that extends laterally ahead of the second horizontal shaft and is connected to front ends of the first horizontal shafts.

18. The headrest according to claim 17 , wherein a front end of the first horizontal shafts or the third horizontal shaft abuts against a front surface of the base vertical portion so as to restrict an angular position of the base member with respect to the second horizontal shaft.

19. A method of making a headrest for a vehicle seat, comprising:
preparing a pillar member including a right and a left vertical shaft extending upward from an upper part of a seat back, a right and a left first horizontal shaft extending forward from upper ends of the respective vertical shafts, each first horizontal shaft including a curved section, and a second horizontal shaft extending laterally between front parts of the first horizontal shafts;
preparing a base member including a base vertical portion extending vertically ahead of the vertical shafts, a base upper portion extending rearward from an upper end of the base vertical portion, and a right and a left first hole formed in the base upper portion to have the respective curved sections or the respective vertical shafts passed therethrough;
pivotably connecting the base upper portion to the second horizontal shaft by a connecting member; and
supporting a pad on the base member,
wherein the first holes each consist of an elongated hole extending in a fore and aft direction, and at least one of a front end and a rear end of the first hole is formed in a substantially triangular shape.

Assignees

• Ts Tech Co Ltd

Inventors

• Johnson Steven
• Williams Jacob
• Denlinger James
• HADADARE Dinesh
• Greening Adam
• HEMMELGARN Chase
• Schupska Peter
• BUFFINGTON Ryan
• Christopher jason
• SAINTIGNON David

Classifications

• B60N2/809 Primary

  vertically slidable · CPC title

• B60N2/838

  Tiltable · CPC title

• B60N2/891 Primary

  with the head-rest being comma-shaped in side view · CPC title

• B60N2/80

  Head-rests · CPC title

• B60N2/832

  movable to an inoperative or stowed position · CPC title