Vehicular seat assembly having a movable headrest and a vehicle which incorporates the vehicular seat assembly
First Claim
Patent Images
1. A vehicular seat assembly comprising:
- a seat portion;
a backrest portion;
a headrest assembly having a headrest movably coupled to the backrest portion; and
a mechanical linkage coupled to the headrest assembly and to a vehicle body, the mechanical linkage including;
a pivot member coupled to the headrest and rotatably mounted to the backrest portion;
a first arm extending from the pivot member and having a first end; and
a linkage member pivotally connected to the first end of the first arm and connectable to a portion of the vehicle body;
wherein the mechanical linkage transmits a force from the vehicle body to the headrest assembly to move the headrest assembly from a first position to a second head reception position in response to a vehicle impact such that rearward motion of the backrest portion relative to the portion of the vehicle body applies a moment to the pivot member, the moment urging the headrest toward the second head reception position.
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Accused Products
Abstract
A low profile vehicular seat having an occupant contacting surface and a headrest which is moved from a first position to a second head reception position upon the communication of force from the body of the vehicle to the seat assembly.
35 Citations
14 Claims
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1. A vehicular seat assembly comprising:
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a seat portion;
a backrest portion;
a headrest assembly having a headrest movably coupled to the backrest portion; and
a mechanical linkage coupled to the headrest assembly and to a vehicle body, the mechanical linkage including;
a pivot member coupled to the headrest and rotatably mounted to the backrest portion;
a first arm extending from the pivot member and having a first end; and
a linkage member pivotally connected to the first end of the first arm and connectable to a portion of the vehicle body;
wherein the mechanical linkage transmits a force from the vehicle body to the headrest assembly to move the headrest assembly from a first position to a second head reception position in response to a vehicle impact such that rearward motion of the backrest portion relative to the portion of the vehicle body applies a moment to the pivot member, the moment urging the headrest toward the second head reception position. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A vehicular seat assembly comprising:
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a backrest portion;
a headrest;
a pivot member coupled to said headrest and rotatably mounted to said backrest portion;
a first arm extending from said pivot member and having a first end connectable to a vehicle body such that movement of said backrest rearward relative to said vehicle body exerts a force on said first arm urging said pivot member to rotate in a first direction corresponding to a forward position of said headrest; and
a second arm extending from said pivot member and having a free end engaging a stop disposed within said backrest portion to position said headrest in a rearward position and restrain the pivot member against rotation in a first direction corresponding to further rearward movement of the headrest;
wherein the first arm and the second arm are formed as a unitary ā
Vā
shaped member. - View Dependent Claims (8, 9, 10, 11)
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12. A vehicle comprising:
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a body;
at least one low profile seat disposed within said body and having a backrest;
a headrest mounted to said backrest and movable relative to said backrest between a first position and a head reception position; and
a mechanical linkage coupling said headrest assembly to said body, said mechanical linkage including;
a pivot member coupled to said headrest and rotatably mounted to said backrest;
a first arm extending from said pivot member and having a first end; and
a linkage member pivotally connected between said first end of said first arm and said body;
wherein the mechanical linkage transmits a force from said body to said headrest assembly to move said headrest from said first position to said head reception position in response to a vehicle impact such that rearward motion of said backrest portion relative to said body applies a moment to said pivot member, said moment urging said headrest toward said reception position. - View Dependent Claims (13, 14)
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Specification