Head restraint
First Claim
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1. Head restraint for a backrest of a vehicle, comprising:
- a head cushion; and
a retaining device including a pivot adapted to be positioned above a backrest for coupling the head cushion pivotably to the backrest, said pivot being aligned transversely to a front surface of the backrest and passing eccentrically through a plane of symmetry of the head cushion such that the head cushion is pivotable between an upper functional position and a lower nonfunctional position, wherein the retaining device includes a bearing cup having a cup axis coaxial with said pivot, said pivot including a pivot pin coupled to said head cushion and extending rearwardly of a proximal portion of the head cushion which is lower in the functional position, said cup rotatable accommodating said pivot pin, wherein said proximal portion of the head cushion is bevelled on a rearward side to define an oblique surface running approximately parallel to the front surface of the backrest.
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Abstract
A head restraint for a vehicle seat which has a seat back or backrest, having a head cushion and a retaining device. The retaining device secures the head cushion pivotably to the backrest. The retaining device is designed such that the head cushion can be pivoted between an upper functional position and a lower-lying rest or non-functional position. For the purpose of simplifying the retaining device in terms of design and manufacture, the head cushion and retaining device are connected to each other via a pivot which is aligned transversely with respect to the backrest front surface and passes eccentrically through the plane of symmetry of the head cushion.
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Citations
20 Claims
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1. Head restraint for a backrest of a vehicle, comprising:
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a head cushion; and
a retaining device including a pivot adapted to be positioned above a backrest for coupling the head cushion pivotably to the backrest, said pivot being aligned transversely to a front surface of the backrest and passing eccentrically through a plane of symmetry of the head cushion such that the head cushion is pivotable between an upper functional position and a lower nonfunctional position, wherein the retaining device includes a bearing cup having a cup axis coaxial with said pivot, said pivot including a pivot pin coupled to said head cushion and extending rearwardly of a proximal portion of the head cushion which is lower in the functional position, said cup rotatable accommodating said pivot pin, wherein said proximal portion of the head cushion is bevelled on a rearward side to define an oblique surface running approximately parallel to the front surface of the backrest. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. Retaining device for pivotably coupling a head cushion to a vehicle seat backrest, comprising:
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a bearing to be coupled to the vehicle seat backrest such that a pivot axis defined by said bearing extends at least approximately perpendicularly to a front surface of the backrest;
a pivot pin adapted to be positioned above the backrest and coupled to a lower portion of the head cushion, said pivot pin being disposed in said bearing to be rotatable about said pivot axis between a first position corresponding to an upper functional position of the head cushion and a second position corresponding to a lower nonfunctional position of the head cushion; and
at least one locking mechanism which releasably locks said pivot pin to said bearing in said first position, wherein the locking mechanism comprises a recess in the pivot pin and a locking pin axially displaceably disposed on the bearing, said locking pin being releasably engageable with the recess. - View Dependent Claims (15, 16, 17, 18, 19)
said head cushion including a supporting frame, said pivot pin being coupled to said supporting frame via a retaining bolt, said retaining bolt being fixed non-rotatably to said supporting frame and being fixed non-rotatably to said pivot pin. -
19. Head restraint system according to claim 18, further comprising the vehicle seat backrest,
said vehicle seat backrest defining at least one guide sleeve, said bearing being coupled to a supporting hoop configured to be disposed in said at least one guide sleeve.
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20. A method of pivotably coupling a head cushion to a vehicle seat backrest, comprising:
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coupling a bearing to the vehicle seat backrest such that a pivot axis defined by said bearing extends at least approximately perpendicularly to a front surface of the backrest;
coupling a pivot pin to a lower portion of the head cushion;
coupling said pivot pin to said bearing to be rotatable about said pivot axis between a first position corresponding to an upper functional position of the head cushion and a second position corresponding to a lower nonfunctional position of the head cushion wherein said pivot pin is positioned above said backrest; and
providing at least one locking mechanism to releasably lock said pivot pin to said bearing in said first position.
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Specification