Headrest

Patent metadata

Field	Value
Publication number	US-9707871-B2
Application number	US-201514964044-A
Country	US
Kind code	B2
Filing date	Dec 9, 2015
Priority date	Dec 10, 2014
Publication date	Jul 18, 2017
Grant date	Jul 18, 2017

Abstract

A headrest has a pad that is formed integrally with an outer cover by foam molding, and is also provided with: a low-resilience layer that is set in a front part of the pad and has lower resilience than the pad; a support member that is harder than the pad and supports the low-resilience layer from a backside of the low-resilience layer; and a blocking member that is located at a position to cover a contact area of the low-resilience layer and the support member from an outer circumference side while being in contact with at least one of the low-resilience layer and the support member and blocks infiltration of a foamed resin material of the pad into the contact area.

First claim

What is claimed is:

1. A headrest in which a pad is formed integrally with an outer cover by foam molding, the headrest comprising:
a low-resilience layer that is set in a front part of the pad and has lower resilience than the pad;
a support member that is harder than the pad and supports the low-resilience layer from a backside of the low-resilience layer; and
a blocking member that is located at a position to cover a contact area of the low-resilience layer and the support member from an outer circumference side while being in contact with at least one of the low-resilience layer and the support member and blocks infiltration of a foamed resin material of the pad into the contact area.

2. The headrest according to claim 1 ,
wherein the blocking member is disposed to cover the support member from a top side and both lateral sides.

3. The headrest according to claim 1 ,
wherein the foamed resin material of the pad is injected into the outer cover which is set upside down and is formed integrally with the outer cover by foam molding,
wherein the low-resilience layer is integrally attached to an inner circumferential surface of a front part of the outer cover; and
wherein the blocking member is bonded to the support member to be in surface contact with the support member in a height direction in a part immediately above an area in which the foamed resin material of the pad injected into the outer cover runs down over a slope of the outer cover and is retained, and the blocking member is set to be in contact with the low-resilience layer attached to the inner circumferential surface of the outer cover from a rear side.

4. The headrest according to claim 1 ,
wherein the blocking member is made of a low-breathability soft foamed material that does not transmit the foamed resin material of the pad.

5. A headrest comprising:
an outer cover;
a pad that is made of a foamed resin material and disposed inside the outer cover;
a support member that is disposed inside the pad;
a low-resilience layer that is disposed in front of the support member and between the outer cover and the support member, the low-resilience layer being supported by the support member from back side and having lower resilience than the pad; and
a blocking member that is disposed to cover a boundary between the low-resilience layer and the support member, the blocking member being made of a material that blocks infiltration of the foamed resin material of the pad into the boundary.

6. The headrest according to claim 5 ,
wherein the blocking member is disposed at a position to cover the boundary at an upper part of the support member.

7. The headrest according to claim 6 ,
wherein the blocking member is disposed at a position to cover the boundary at the upper part and at least a part of both side part of the support member.

8. The headrest according to claim 5 ,
wherein the blocking member is in contact with a backside of the low-resilience layer.

9. The headrest according to claim 5 ,
wherein the blocking member is made of a low-breathability soft foamed material.

10. The headrest according to claim 5 ,
wherein the blocking member is disposed on an upper face of the support member.

11. The headrest according to claim 10 ,
wherein the blocking member is adhered to an upper face of the support member.

12. The headrest according to claim 10 ,
wherein the foamed resin material of the pad is disposed between the blocking member and the outer cover at a position above the blocking member.

Assignees

• Toyota Boshoku Kk
• Inoue Mtp Kk

Inventors

• Okamoto Kenji
• Mitsuoka Naoki
• Tsuchiya Satoru

Classifications

• B60N2/58

  Seat coverings · CPC title

• B60N2/803

  fixed · CPC title

• B60N2/80 Primary

  Head-rests · CPC title

• B60N2002/899

  characterised by structural or mechanical details not otherwise provided for · CPC title

• B29C44/1285

  the preformed part being foamed · CPC title