US5752742A — Headrest for a vehicle seat

Claim 1

Independent Claim 245 words

A headrest for a vehicle seat having a backrest, comprising a head cushion fastened on two supporting rods for holding the head cushion on the backrest and having two side pieces which are assigned to the head cushion and which, in the in-use position, protrude laterally on the head cushion beyond a cushion front and, in the not-in-use position, are accommodated within the contour of the head cushion, wherein each side piece is swivellably disposed on a vertical tube section which, in turn, is fastened on a supporting rod to be swivellable about a swivel shaft extending transversely thereto, wherein the two vertical tube sections, which are in each case assigned to one side piece, are fixedly connected with one another by way of an upper and a lower cross traverse, said upper and lower cross transverse carry an upper and a lower cushion enlargement of the head cushion, respectively, wherein the side pieces each have a parallelepiped-shaped basic cushion body respectively situated between the cushion enlargements, said basic body has a depth which corresponds to the depth of the cushion enlargements, and has a padded wedge piece, and wherein the wedge pieces are constructed such that, in the not-in-use position of the side pieces, they cover one another at least partially in a direction transverse to a plane of the headrest which supports a user's head, between the cushion enlargements, and end approximately flush with the front and rear side of the cushion enlargements.

Claim 2

Dependent Claim 245 words

A headrest for a vehicle seat having a backrest, comprising a head cushion fastened on two supporting rods for holding the head cushion on the backrest and having two side pieces which are assigned to the head cushion and which, in the in-use position, protrude laterally on the head cushion beyond a cushion front and, in the not-in-use position, are accommodated within the contour of the head cushion, wherein each side piece is swivellably disposed on a vertical tube section which, in turn, is fastened on a supporting rod to be swivellable about a swivel shaft extending transversely thereto, wherein the two vertical tube sections, which are in each case assigned to one side piece, are fixedly connected with one another by way of an upper and a lower cross traverse, said upper and lower cross transverse carry an upper and a lower cushion enlargement of the head cushion, respectively, wherein the side pieces each have a parallelepiped-shaped basic cushion body respectively situated between the cushion enlargements, said basic body has a depth which corresponds to the depth of the cushion enlargements, and has a padded wedge piece, and wherein the wedge pieces are constructed such that, in the not-in-use position of the side pieces, they cover one another at least partially in a direction transverse to a plane of the headrest which supports a user's head, between the cushion enlargements, and end approximately flush with the front and rear side of the cushion enlargements.

Claim 3

Dependent Claim 39 words

The headrest according to claim 1, wherein the vertical height of the side pieces is slightly lower than the distance between the upper and the lower cushion enlargement and is approximately half as large as the head cushion height.

Claim 4

Dependent Claim 18 words

The headrest according to claim 1, wherein the cushion enlargements are clipped onto a respective assigned cross traverse.

Claim 5

Dependent Claim 41 words

The headrest according to claim 1, wherein each of said tube sections is gripped in the center by a clamping hub which is swivellably held on a supporting arm which is fastened by the supporting rod and projects from it tangentially.

Claim 6

Dependent Claim 74 words

The headrest according to claim 4, wherein a bearing bush is arranged on the tube section above and below the clamping hub, wherein the bearing bushes carry a hollow cylinder surrounding the tube section and the supporting rod and, further comprising a disk cover molded-on bearing bush in one piece and closing end face of the hollow cylinder and wherein the basic body of the side piece is fixedly disposed on the hollow cylinder.

Claim 7

Dependent Claim 14 words

headrest according to claim 5, wherein the bearing bushes extend to the clamping hub.

Claim 8

Dependent Claim 124 words

The headrest according to claim 5, wherein, between an upper bearing bush and an upper cross traverse, which reaches around the tube section on the end side, a distance piece with a molded-on bearing disk is arranged which rests on the upper bearing bush cover, wherein a curved-segment-shaped slot which is concentric with respect to the tube section is arranged in the upper bearing bush cover and a pin is arranged on the bearing disk which projects into the slot or vice versa, and wherein the slot length is dimensioned such that the pin, in the not-in-use position of the side pieces, strikes against the one end and, in the in-use position of the side pieces, strikes against the other end of the slot.

Claim 9

Dependent Claim 64 words

The headrest according to claim 1, wherein the lower cross traverse, having end sides thereof, is pushed onto said tube section and is supported by way of a distance ring on the lower bearing bush, said tube section being held by a screw on the tube section, said screw being screwed into an internal thread cut in at the end of the tube section.

Claim 10

Dependent Claim 58 words

The headrest according to claim 5, wherein a longitudinal recess is provided in the lower bearing bush cover which extends at a right angle to the swivel shaft of the clamping hub, is penetrated by the supporting rod, and continues into a recess in the lower cushion enlargement which extends to the lower edge of the head cushion.

Claim 11

Dependent Claim 18 words

The headrest according to claim 2, wherein the cushion enlargements are clipped onto a respective assigned cross traverse.

Claim 12

Dependent Claim 41 words

The headrest according to claim 10, wherein each of said tube sections is gripped in the center by a clamping hub which is swivellably held on a supporting arm which is fastened by the supporting rod and projects from it tangentially.

Claim 13

Dependent Claim 74 words

The headrest according to claim 11, wherein a bearing bush is arranged on the tube section above and below the clamping hub, wherein the bearing bushes carry a hollow cylinder surrounding the tube section and the supporting rod and, further comprising a disk-shaped cover molded-on bearing bush in one piece, and closing end faces of the hollow cylinder, and wherein the basic body of the side piece is fixedly disposed on the hollow cylinder.

Claim 14

Dependent Claim 15 words

The headrest according to claim 12, wherein the bearing bushes extend to the clamping hub.

Claim 15

Dependent Claim 124 words

The headrest according to claim 13, wherein, between an upper bearing bush and an upper cross traverse, which reaches around the tube section on the end side, a distance piece with a molded-on bearing disk is arranged which rests on the upper bearing bush cover, wherein a curved-segment-shaped slot which is concentric with respect to the tube section is arranged in the upper bearing bush cover and a pin is arranged on the bearing disk which projects into the slot or vice versa, and wherein the slot length is dimensioned such that the pin, in the not-in-use position of the side pieces, strikes against the one end and, in the in-use position of the side pieces, strikes against the other end of the slot.

Claim 16

Dependent Claim 62 words

The headrest according to claim 14, wherein the lower cross traverse, having end sides, is pushed onto said tube sections respectively, is supported by way of a distance ring on the lower bearing bush, and is held by means of a screw on the tube section which is screwed into an internal thread cut in at the end of the tube section.

Claim 17

Dependent Claim 58 words

The headrest according to claim 15, wherein a longitudinal recess is provided in the lower bearing bush cover which extends at a right angle to the swivel shaft of the clamping hub, is penetrated by the supporting rod, and continues into a recess in the lower cushion enlargement which extends to the lower edge of the head cushion.

Claim 18

Dependent Claim 96 words

A headrest for a vehicle seat having a backrest, comprising: an upper cushion part, a lower cushion part, and a pair of side piece cushion parts disposed intermediate the upper and lower cushion parts to be pivotally movable between a non-use position partially overlapping one another in a direction transverse to a plane of the headrest which supports a user's head and inside a contour defined between the upper and lower cushion parts, and an in-use position protruding forwardly of the upper and lower cushion parts at respective sides thereof to form lateral head cushioning parts.

Claim 19

Dependent Claim 96 words

A headrest for a vehicle seat having a backrest, comprising: an upper cushion part, a lower cushion part, and a pair of side piece cushion parts disposed intermediate the upper and lower cushion parts to be pivotally movable between a non-use position partially overlapping one another in a direction transverse to a plane of the headrest which supports a user's head and inside a contour defined between the upper and lower cushion parts, and an in-use position protruding forwardly of the upper and lower cushion parts at respective sides thereof to form lateral head cushioning parts.

Claim 20

Dependent Claim 22 words

The headrest according to claim 17, comprising a pair of supporting rods supporting said cushion parts at a vehicle set back rest.

Claim 21

Dependent Claim 43 words

The headrest according to claim 18, comprising: a pair of vertical tube sections connecting the upper and lower cushion parts with one another, wherein said tube sections are supported at said respective supporting rods for pivotal tilting movement of the head rest cushions.

Claim 22

Dependent Claim 23 words

The headrest according to claim 19, wherein said side piece cushion parts are pivotally supported at respective ones of said vertical tube sections.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	2001-05-18	2001-11-17	2002-05-19	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2005-05-18	2005-11-17	2006-05-19	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2009-05-18	2009-11-17	2010-05-19	$7700.00	Window Closed / Lapsed

Headrest for a vehicle seat

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