Chairs and seats – Armrest – Movable to nonuse position
Patent
1995-07-07
1998-06-23
Cuomo, Peter M.
Chairs and seats
Armrest
Movable to nonuse position
29741132, 403 72, 403116, 403 82, A47C 754, B60N 246
Patent
active
057694958
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to an adjusting mechanism for a support element included in the seat of a vehicle or a like and pivotable in the vertical plane, said mechanism comprising a fastening element to be mounted on a seat or a separate body member and provided with a through-hole for a fulcrum pin facilitating the pivotable fixing of said support element, and a fastening member included in the support element and provided with a through-going opening for said fulcrum pin.
An object of the present invention is to provide an improved adjusting mechanism for effecting said pivoting movement occurring in the vertical plane and for adjusting said support element, such as e.g. an armrest included in the seat of a bus or a footrest fitted behind the preceding seat in the bottom portion thereof, to a desired pivoted position, said improvement providing a support element adjustment which is simpler and more reliable than before. This type of adjusting mechanism is necessary for adapting the position of a footrest included e.g. in the seat of a bus, a train or a ship for the needs of people of varying sizes and for pivoting or turning an armrest included in the seat out of the way for getting in and out of the seat more easily. This type of adjusting mechanism is particularly useful in connection with seats having a declinable back, whereby the armrest or footrest is adjustable in relation to the inclination of the back. The possible seats may also comprise e.g. office chairs and seats of various public facilities, such as theatre seats.
In order to achieve the above object, a mechanism of the invention is characterized in that the opening included in the fastening member is made elongated and one end thereof is provided with a bushing receiving said fulcrum pin and adapted for a relative movement in the longitudinal direction of the opening towards the other end of the opening; that the opening is further provided with a spring member applying an impulsive force between bushing and fastening member; and that the fastening member is further provided with guiding/locking elements which are in cooperation with respective guiding/locking elements included in the fastening element with the bushing located at said one end and loaded by the spring member, the pivoting of the support element to a desired position being effected by shifting the support element in the longitudinal direction of the opening against the action of the spring member towards the fulcrum pin remaining stationary relative to the fastening element, said guiding/locking elements being released from the relative engagement thereof facilitating the pivoting motion of the support element to a desired locking position, wherein the spring member forces the support element back to a position in which said bushing is again at said one end of the opening and said guiding/locking elements are in relative engagement.
According to one aspect of the invention, an adjusting mechanism of the invention is characterized in that the support element comprises an armrest included in a seat, and that said guiding/locking elements comprise a guide slot formed in the armrest fastening member and provided with at least one arrest shoulder located between the extreme ends of the slot, and a guide/locking member which is included in the fastening element and movable relative to said slot and engageable with said locking shoulder for locking the armrest in a desired pivoted position.
According to another aspect of the invention, an adjusting mechanism of the invention is characterized in that the support element comprises a footrest mounted in front of a seat, on the bottom section of a preceding seat or some other supporting structure, that the fastening element comprises a body member including two take-up recesses, the bottom or back wall of said recesses being provided with at least one locking shoulder, and that the footrest fastening member comprises a body element, which is provided at one end with an actual footrest element, the other end of said body element be
REFERENCES:
patent: 2175488 (1939-10-01), Stoll
patent: 2310346 (1943-02-01), Bell
patent: 2411063 (1946-11-01), Scott
patent: 4657305 (1987-04-01), Meiller
patent: 4668010 (1987-05-01), Fujiwara
patent: 4848840 (1989-07-01), Toya
patent: 5316373 (1994-05-01), Markel
Barfield Anthony D.
Cuomo Peter M.
Jukova Oy
Pauly Joan H.
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