US3635527A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Headrest at the backrest of a motor vehicle seat
Assignee: Daimler Benz AG
•
Filing: 1970-02-16
•
Granted: 1972-01-18
•
Expires: 1990-02-16
Abstract
Abstract A headrest at the backrest of a motor vehicle which is guided in the backrest by means of two mutually parallel support rods and is adjustable in its height; the support rods are slightly bent in the direction toward the back side of the backrest and are guided in substantially rectilinear guide members which include two guide bodies that are arranged at a distance from one another, surround the support rods and are slightly movable transversely to the longitudinal direction of the support rods.
Inventors
- 👤 Ludwig Weber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:42
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/80; B60N2/806; B60N2/809; B60N2/812; B60N2/821; B60N2/826; B60N2/897
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
115 words
The combination of a vertically adjustable headrest and attachment means to attach said headrest to the backrest of a motor vehicle seat, comprising at least one support rod means connected to the headrest, at least one substantially rectilinear guide means in the backrest for adjustably guiding the respective support rod means, each of said at least one support rod means being slightly curved, a plurality of spaced guide members arranged within each of said at least one guide means, each of said guide members being slightly movable substantially transversely to the longitudinal direction of the guide means, said guide members being arranged to engagingly surround the support rod means for holding the headrest in position.
Claim 2
Dependent Claim
115 words
The combination of a vertically adjustable headrest and attachment means to attach said headrest to the backrest of a motor vehicle seat, comprising at least one support rod means connected to the headrest, at least one substantially rectilinear guide means in the backrest for adjustably guiding the respective support rod means, each of said at least one support rod means being slightly curved, a plurality of spaced guide members arranged within each of said at least one guide means, each of said guide members being slightly movable substantially transversely to the longitudinal direction of the guide means, said guide members being arranged to engagingly surround the support rod means for holding the headrest in position.
Claim 3
Dependent Claim
22 words
The combination according to claim 1, characterized in that two mutually parallel support rod means and two rectilinear guide means are provided.
Claim 4
Dependent Claim
27 words
The combination according to claim 2, characterized in that a brake means projecting through an aperture in a respective guide member is arranged in each guide means.
Claim 5
Dependent Claim
38 words
The combination according to claim 3, characterized in that both an upper and a lower guide member are arranged in each rectilinear guide means and that the brake means are fixedly arranged in the respective upper guide members.
Claim 6
Dependent Claim
26 words
The combination according to claim 3, characterized in that the upper end of each guide means includes an upper guide member with an insertion funnel therein.
Claim 7
Dependent Claim
61 words
The combination according to claim 5, characterized in that each guide means includes a lower guide member, each lower guide member including a spring means for abutting with prestress at a respective support means, said spring means detachably engaging into a groove provided at the free end of the support rod means when pulling the latter out of the guide means.
Claim 8
Dependent Claim
52 words
The combination according to claim 6, characterized in that each guide means includes an upper guide member and a further spring means is arranged at each guide means between the two guide members for pressing the upper and lower guide members in the direction toward the curvature of the support rod means.
Claim 9
Dependent Claim
31 words
The combination according to claim 7, characterized in that said last-mentioned spring means presses the lower portion of the upper guide member and the upper portion of the lower guide member.
Claim 10
Dependent Claim
27 words
The combination according to claim 1, characterized in that a brake means projecting through an aperture in a respective guide member is arranged in each guide means.
Claim 11
Dependent Claim
24 words
The combination according to claim 1, characterized in that both an upper and a lower guide member are arranged in each rectilinear guide means.
Claim 12
Dependent Claim
27 words
The combination according to claim 1, characterized in that the support rod presents a concavely curved profile to the front side of the headrest and backrest combination.
Claim 13
Dependent Claim
22 words
The combination according to claim 1, characterized in that the guide means are disposed entirely within the outer contours of the backrests.
Claim 14
Dependent Claim
17 words
The combination according to claim 1, characterized in that said headrest is selectively detachably from said backrest.
Claim 15
Dependent Claim
21 words
The combination according to claim 1, characterized in that said headrest is manually adjustable to an infinite number of vertical positions.
Claim 16
Dependent Claim
19 words
The combination according to claim 10, characterized in that brake means are fixedly arranged in the upper guide member.
Claim 17
Dependent Claim
26 words
The combination according to claim 11, characterized in that the upper end of the respective guide means includes a guide member provided with an insertion funnel.
Claim 18
Dependent Claim
59 words
The combination according to claim 10, characterized in that a spring means abutting with prestress at a respective support rod means is arranged in each guide means at the lower guide member, said spring means detachably engaging into a groove provided at the free end of the support rod means when pulling the latter out of the guide means.
Claim 19
Dependent Claim
44 words
The combination according to claim 16, characterized in that a spring means is arranged at each guide means between the upper and lower guide members for pressing the upper and lower guide members in the direction toward the curvature of the support rod means.
Claim 20
Dependent Claim
31 words
The combination according to claim 18, characterized in that said last-mentioned spring means presses the lower portion of the upper guide member and the upper portion of the lower guide member.
Claim 21
Dependent Claim
20 words
The combination according to claim 8, characterized in that the brake means is fixedly arranged in the upper guide member.
References Cited (Backward Citations)
DE807753C
Cited
US3454303A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-17 | 1975-07-19 | 1976-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-17 | 1979-07-19 | 1980-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-17 | 1983-07-19 | 1984-01-18 | $7700.00 | Window Closed / Lapsed |