Patent US5240309A successfully refreshed from Google Patents.
US5240309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle seat, especially a motor vehicle seat
Assignee: Keiper Recaro GmbH and Co
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Filing: 1991-04-11
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Granted: 1993-08-31
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Expires: 2011-04-11
Abstract
Abstract A vehicle seat, especially a motor vehicle seat, with a backrest that can be swung freely and with an interlock device by means of which a flipping motion of the backrest can be prevented in positive locking fashion. The interlock device has a catch lever whose hinge point lies between its first end section, which interacts with a stop and its second end section. The latter is pivotably connected to a second lever by means of a pivot pin whose longitudinal axis lies parallel to the flipping axle of the backrest. The second lever is connected, in the area of the stop to the part of the seat, said part supporting the stop. It is connected so that it can pivot about an axis that is parallel to the pivoting axis of the catch lever. When the interlock device is in its interlock position, the longitudinal axis of the pivot pin, the pivoting axis of the catch lever, and the contact point of the stop for the catch lever define a triangle whose tip is formed by the pivot axis of the catch lever and points towards the flipping axle.
Inventors
- 👤 Wolfgang Kojer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:32
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/02; B60N2/20
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
318 words
A vehicle seat comprising a seat structure which is to be connected to the floor of a vehicle, a backrest connected to a mounting means on each side of the seat, a flipping axle that runs along a transverse direction of the seat and pivotably connects said mounting means with said seat structure, said flipping axle having a flipping axis; a catch lever hinged at the mounting means, said catch lever having a first pivot axis parallel to the flipping axle; a stop located at the seat structure; said catch lever and stop forming an interlock upon contact to positively prevent a flipping motion of the mounting means; releasing means for unlocking said interlock; and wherein: a) said first pivot axis of said catch lever is provided between a first end section, which contacts the stop at a contact point, and a second end section; b) the second end section of the catch lever is pivotably connected to a second lever by a pivot pin, said pivot pin having a longitudinal axis which is parallel to the flipping axis of the flipping axle; c) said second lever being connected to the seat structure which supports the stop, the second lever being pivotable about a second pivot axis that runs parallel to the first pivot axis of the catch lever; d) the longitudinal axis of the pivot pin, the pivot axis of the catch lever and the contact point of the stop for the catch lever define a triangle whose tip, formed by the pivot axis of the catch lever, points towards the flipping axle, when in an interlocked condition; and e) said releasing means being operatively connected with the catch lever such that the catch lever can be pivoted into a position that is raised from the stop, said triangle tip that is formed by the pivot axis of the catch lever pointing away from the flipping axle.
Claim 2
Dependent Claim
318 words
A vehicle seat comprising a seat structure which is to be connected to the floor of a vehicle, a backrest connected to a mounting means on each side of the seat, a flipping axle that runs along a transverse direction of the seat and pivotably connects said mounting means with said seat structure, said flipping axle having a flipping axis; a catch lever hinged at the mounting means, said catch lever having a first pivot axis parallel to the flipping axle; a stop located at the seat structure; said catch lever and stop forming an interlock upon contact to positively prevent a flipping motion of the mounting means; releasing means for unlocking said interlock; and wherein: a) said first pivot axis of said catch lever is provided between a first end section, which contacts the stop at a contact point, and a second end section; b) the second end section of the catch lever is pivotably connected to a second lever by a pivot pin, said pivot pin having a longitudinal axis which is parallel to the flipping axis of the flipping axle; c) said second lever being connected to the seat structure which supports the stop, the second lever being pivotable about a second pivot axis that runs parallel to the first pivot axis of the catch lever; d) the longitudinal axis of the pivot pin, the pivot axis of the catch lever and the contact point of the stop for the catch lever define a triangle whose tip, formed by the pivot axis of the catch lever, points towards the flipping axle, when in an interlocked condition; and e) said releasing means being operatively connected with the catch lever such that the catch lever can be pivoted into a position that is raised from the stop, said triangle tip that is formed by the pivot axis of the catch lever pointing away from the flipping axle.
Claim 3
Dependent Claim
44 words
The vehicle seat of claim 1, further including a pre-tensioned spring which acts on the second lever at some distance from said second pivot axis, such that said spring loads the catch lever by way of the pivot to make contact with said stop.
Claim 4
Dependent Claim
33 words
The vehicle seat of claim 2, wherein said pre-tensioned spring is a leg spring, one of whose legs engages the flipping axle rotatably, and the other of whose legs engages the second lever.
Claim 5
Dependent Claim
46 words
The vehicle seat as in one of claims 1-3, in which the stop is a pin disposed parallel to the flipping axle and having a pin axis, and the second lever is pivotably mounted on said pin, said second pivot axis corresponding to said pin axis.
Claim 6
Dependent Claim
45 words
The vehicle seat as in one of claims 1-3, in which the catch lever is extended beyond the point which contacts the stop in the interlock position, and wherein this extension forms a hook which, in the interlock position, engages the stop with some play.
Claim 7
Dependent Claim
43 words
The vehicle seat according to claim 4, in which the catch lever is extended beyond the point which contacts the stop in the interlock position, and wherein this extension forms a hook which, in the interlock position, engages the stop with some play.
Claim 8
Dependent Claim
88 words
The vehicle seat of claim 5, said catch lever and said stop having a self-inhibition range, and wherein said hook has a flat surface which contacts the stop without play after the distance between the stop and the pivot axis of the catch lever has been increased due to an overload of the backrest and which encloses with a tangent, which is perpendicular to a line from the center of the stop to the pivot axis of the catch, an angle β which lies in the self-inhibition range.
Claim 9
Dependent Claim
88 words
The vehicle seat of claim 6, said catch lever and said stop having a self-inhibition range, and wherein said hook has a flat surface which contacts the stop without play after the distance between the stop and the pivot axis of the catch lever has been increased due to an overload of the backrest and which encloses with a tangent, which is perpendicular to a line from the center of the stop to the pivot axis of the catch, an angle β which lies in the self-inhibition range.
Claim 10
Dependent Claim
14 words
The vehicle seat of claim 8, wherein angle β is between 1° and 4°.
Claim 11
Dependent Claim
51 words
The vehicle seat as in claim 1, further including a protrusion situated at the second end section of the catch lever, said protrusion extending into the path of motion of the second lever, and, when making contact with the second lever positively prevents a further flipping motion of the mounting means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-08-30 | 1997-03-01 | 1997-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-08-30 | 2001-03-01 | 2001-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-08-30 | 2005-03-01 | 2005-08-31 | $7700.00 | Window Closed / Lapsed |