Chairs and seats – Armrest – Movable to nonuse position
Patent
1994-10-19
1996-12-17
Cranmer, Laurie K.
Chairs and seats
Armrest
Movable to nonuse position
297145, A47C 754
Patent
active
055845347
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a vehicular seat for a disabled person wherein, in order that a disabled person can easily sit on or separate from a seat which is used for various vehicles such as an airplane, ship or rolling stock, the front side or the whole of an armrest formed on the walkway side of the seat is turned in the vertical direction, to thereby temporarily shift the armrest from the position of obstructing the sitting or separating action on or from the seat.
BACKGROUND ART
In seats for vehicles such as an airplane, ship and rolling stock, except for the seats in the first class or business class passenger cabins, such armrests as to be fixed on the side portions of the seats have been generally used. Further, in the first class seat having a wide seat pitch, a wheelchair is accessible to the front of the seat, so that a disabled person can relatively easily move on the seat from the front of the seat and sit on the seat; however, in the economy class or business class seat, the seat pitch is narrow and thereby the wheelchair cannot be moved to be close to the front of the seat, so that the disabled person must sit on or separate from the seat while leaving the wheelchair on the walkway side of the seat, which causes a problem that the armrest obstructs the sitting or separating action on or from the seat. To cope with this problem, there has been proposed a vehicular seat having the so-called jumping type armrest capable of vertically turning the front side of the armrest for allowing a disabled person to sit on or separate from the seat therethrough. However, in this construction, even when a stay for supporting the front side of the armrest is provided, the strength or the supporting force of the armrest in the normal service is weak, to thus lower the reliability and durability.
For seats disposed at the front row of an airplane even in the first class, or for seats in the business class, the so-called armrest with a wing capable of containing a table in a wing constituting the armrest is used. Further, in seats for the first class, all the seats include armrests with wings capable of containing tables in the wings. Even forthe seat having the above armrest with a wing, there has been required such a structure that the armrest can be shifted from the side end portion of the seat for allowing a disabled person to easily sit on or separate from the seat from the walkway side.
Taking the above problem into consideration, the present invention has been made, and its object is to provide a vehicular seat wherein, even for an armrest with a wing capable of containing a table in a wing, the armrest can be shifted from the side end portion of the seat for all owing a disabled person to easily sit on or separate from the seat.
SUMMARY OF THE INVENTION
A seat for a disabled person according to the present invention has the following subject matter: namely, the front side of an armrest, which is provided on the side end portion of a seat in such a manner as to contain a table therein and which is formed on the end portion on the walkway side of the seat, is mounted in such a manner as to be turned around a horizontal shaft formed on the rear portion of the armrest to be thus tunable in the vertical direction, or the armrest is mounted in such a manner as to be vertically movable along rails provided on a seat frame in the vertical direction; and a locking device capable of suitable locking the armrest with respect to the seat frame and releasing the locking is provided.
With the above construction, when the locking of the locking device is released, the front side of the armrest is turned around the rotational shaft, or sunk along the rails, and thereby it can be shifted downward. Accordingly, even for the armrest with a wing capable of containing a table in a wing, the armrest can be shifted so as to be sunk down from the side end portion of the seat. As a result, as compared with the case that the armrest is jumped upward just as in the prior art seat, it is possible to fo
REFERENCES:
patent: 3632161 (1972-01-01), Arfaras
patent: 4176878 (1979-12-01), Koutsky
patent: 4902072 (1990-02-01), Chancellor
Cranmer Laurie K.
Koito Industries Limited
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