Patent EP0235793A2 successfully refreshed from Google Patents.
EP0235793A2
Expired / Lapsed
EP
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Seat for motor vehicles
Assignee: JTEKT Column Systems Corp
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Filing: 1987-03-03
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Granted: —
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Expires: 2007-03-03
Abstract
Abstract The seat includes a seat cushion (16) whose rear or front section or both are coupled via a link mechanism (22,28) with a base frame (14) in a manner that can be lifted and lowered, whereby through joining of the link mechanism (22,28) to a control shaft (40) for height adjustment that can be rotated without any limitation, coupling of one of the rocking ends of a bell crank (28) which repeats a rocking motion, interlocked with the rotation of the control shaft (40), to the seat cushion (16), and joining of the other rocking end to the control shaft (40) via a crank, it is possible to adjust the height of the rear section, front section, or both, of the cushion seat between the lowest position and the highest position, for every rocking operation of the bell crank (28).
Inventors
- 👤 Isao Ikegaya
- 👤 Akihisa Yamamoto
- 👤 Makoto Uesugi
- 👤 Shinya Nakamura
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 21:25
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/02; B60N2/04; B60N2/16; B60N2/18; B60N2/1885; B60N2/0224; B60N2/02246; B60N2/1605; B60N2/161; B60N2/1615; B60N2/1635; B60N2/165; B60N2/1675; B60N2/1803; B60N2/1807; B60N2/181; B60N2/185; B60N2/1864
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
116 words
A seat for motor vehicles comprising; a base frame to be arranged on the floor surface of a vehicle body, a cushion frame supported rockably at the tip thereof on the front section of said base frame, a bell crank supported rockably by the rear section of said base frame and one of whose rocking ends coupled with said cushion frame, a crank pivotally supported turnably at an appropriate position of said base frame and linked via a rotation transmission mechanism to a control shaft, and a coupling rod whose one end is coupled with a crank pin of said crank while the other end is coupled with the other rocking end of said bell crank.
Claim 2
Dependent Claim
116 words
A seat for motor vehicles comprising; a base frame to be arranged on the floor surface of a vehicle body, a cushion frame supported rockably at the tip thereof on the front section of said base frame, a bell crank supported rockably by the rear section of said base frame and one of whose rocking ends coupled with said cushion frame, a crank pivotally supported turnably at an appropriate position of said base frame and linked via a rotation transmission mechanism to a control shaft, and a coupling rod whose one end is coupled with a crank pin of said crank while the other end is coupled with the other rocking end of said bell crank.
Claim 3
Dependent Claim
127 words
A seat for motor vehicles comprising; a base frame arranged on the floor surface of a vehicle body, a cushion frame supported rockably in the up and down direction to the rear end of said base frame via a pivotally supporting pin, a bell crank which is supported pivotally as rockable by the front section of said base frame, and a crank which is supported axially and rotatably by said base frame in the proximity of said bell crank and coupled with a control shaft via a rotation transmission mechanism, whereby one of the rocking ends of said bell crank is coupled with a pin on said crank while the other rocking end is coupled with the lower section of said cushion frame via respective link levers.
Claim 4
Dependent Claim
127 words
A seat for motor vehicles comprising; a base frame arranged on the floor surface of a vehicle body, a cushion frame supported rockably in the up and down direction to the rear end of said base frame via a pivotally supporting pin, a bell crank which is supported pivotally as rockable by the front section of said base frame, and a crank which is supported axially and rotatably by said base frame in the proximity of said bell crank and coupled with a control shaft via a rotation transmission mechanism, whereby one of the rocking ends of said bell crank is coupled with a pin on said crank while the other rocking end is coupled with the lower section of said cushion frame via respective link levers.
Claim 5
Dependent Claim
227 words
A seat for motor vehicles as claim l or 2, wherein said cushion frame is coupled with said base frame via respective elevating mechanism for the front and the rear sections, the rear side elevating mechanism includes a bell crank which is rockably supported by the rear section of said base frame, and one of rocking ends of the bell crank is coupled with cushion frame, a crank which is pivotally mounted as rotatable on an appropriate position of said base frame, and is coupled with the control shaft via a rotation transmission mechanism, and a coupling rod whose one end is coupled with a crank pin of said crank and whose the other end is coupled with the other rocking end of the bell crank, and the front side elevating mechanism includes a bell crank which is pivotally mounted rockably on the front section of said base frame, and a crank which is pivotally mounted as rotatable on said base frame in the proximity of said bell crank, and is coupled with the control shaft via a rotation transmission mechanism, whereby one of the rocking ends and the other rocking end of the bell crank are coupled with a pin of said crank and the lower section of said cushion frame, respectively, via respective link levers that cross mutually in the form of the letter X.
Claim 6
Dependent Claim
44 words
A seat for motor vehicle as claimed in claim 3, wherein the control shaft and the crank that is linked thereto are shared by the rear side elevating mechanism, and the tip of said coupling rod is coupled with a crankpin of the crank.
Claim 7
Dependent Claim
48 words
A seat for motor vehicle as claimed in one of claims l through 5, wherein the front side elevating mechanism is given a construction in which its upper part is coupled with said cushion frame and its lower part is coupled with an appropriate part of said crank.
Claim 8
Dependent Claim
136 words
The vehicle seat as claimed in claims l through 5, wherein said base frame consists of a pair that are located on the left and on the right which support respectively the left and right sides of the cushion frame as can be rasied and lowered, a bell crank is mounted pivotally as rockable on one of said base frames via a pivotally supporting shaft, one of the rocking ends of the bell crank is connected to one section of said cushion frame, the other end of the pivotally supporting shaft is supported by the other side of said base frame, and further, on the side of the other end of the pivotally supporting shaft there is provided a link that is interlocked with the bell crank coupled with other side section of said cushion frame.
Claim 9
Dependent Claim
45 words
A seat for motor vehicle as claimed in one of claims l through 6, wherein said crank is formed by projecting a crankpin on an end surface of the flat gear, and the flat gear is interlocked with the control shaft provided with a pinion.
Claim 10
Dependent Claim
40 words
A seat for motor vehicle as claimed in one of claims l through 7, wherein there is provided a knob for manual rotational operation as a united body to an end projected from the base frame, of the control shaft.
Claim 11
Dependent Claim
37 words
A seat for motor vehicle as claimed in one of claims l through 7, wherein there is connected an output terminal of a motor unit to the end, projected from the base frame, of the control shaft.
Claim 12
Dependent Claim
42 words
l0. A seat for motor vehicle as claimed in one of claims l through 9, wherein there is also provided a reclining device for adjusting the angle of the seat back on one side in the rear section of the base frame.
References Cited (Backward Citations)
No citation records indexed.
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