Chairs and seats – Bottom or back with means to alter contour
Patent
1983-08-12
1985-12-17
Lyddane, William E.
Chairs and seats
Bottom or back with means to alter contour
297319, A47C 1024, A47C 714, A47C 746
Patent
active
045589020
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a travel seat as may be used for example in trains, buses and aircraft.
The invention is therefore based on the problem of so designing a travel seat of the kind referred to, that particular account is taken of the problems which specifically occur in such means of transport, and also the desire to carry the passenger in the maximum comfort.
The features set forth in the claims contribute to solving that problem.
Further advantages, details and features of the invention will be apparent from the following description of preferred embodiments, with reference to the accompanying drawings in which:
FIGS. 1a and 1b show a perspective view and a plan view of a first embodiment of a travel seat having a support plate member,
FIGS. 2a and 2b show diagrammatic side views of a second embodiment of a travel seat having an adjustable backrest,
FIGS. 3a through 3c show a third embodiment of a travel seat having an adjustable seat cushion,
FIG. 4 is a diagrammatic side view of a fourth embodiment of a travel seat with automatic adaptation to different seated or lying positions, and
FIGS. 5a through 5c are diagrammtic views of a fifth embodiment of a travel seat having an adjustable footrest.
The travel seat shown in FIGS. 1a and 1b has a backrest 10, a seat cushion 12, armrests 14 and an extendible footrest 16. The backrest 10 which is extended into the head region of the person occupying the seat is narrower in its middle region than in its upper and lower regions, thereby enhancing the freedom for movement of the arms of the person occupying the seat.
In addition, as can be seen from FIG. 1a, the armrests have a wall portion 18 which extends around the arms resting on the armrest, in the region of the elbows thereof. The wall portion 18 on the one hand improves the support for the elbows resting on the armrests, and on the other hand, protects the elbows from being struck from the outside by people walking past the seat.
Also secured to one armrest 14 is a support plate member 20, as can be seen from the drawing. The support plate member 20, which is substantially rectangular is provided at one corner with a projection portion with which it is mounted in a front end portion 22 of the armrest, pivotally about a vertical axis 24, when in the horizontal position shown in the drawing. The plate member 20 can therefore be pivoted from the position in which it is swung in, as shown in solid lines, and in which it is directly in front of the stomach of the person occupying the seat, in a direction away from the seat, into the position shown in broken lines in FIG. 1b and in which the person occupying the seat can leave the seat. As however the support plate member is not required on a continuous basis, it is also provided that the support plate member 20 can be caused to disappear. That is achieved by the front end portion 22 being secured to the armrest 14 pivotally about a horizontal axis which extends in the longitudinal direction of the armrest 14, so that the support plate member 20, when in the position in which it is swung away, can be turned out of the horizontal plane into a vertical plane in which it can then be pivoted about the axis 24 of the front end portion 22, to a position under the armrest 14, through a slot 26 in a side portion, which is formed as a housing 28, of the travel seat. In that connection, the arrangement includes a securing means for preventing the front end portion of the armrest from pivoting about the horizontal axis when the support plate member is in the horizontal position of being swung in. The support plate member 20 is moved out of the housing 28 into the position shown in solid lines in the drawing, in the reverse sequence of movements.
FIGS. 2a and 2b show diagrammatic views of another embodiment of the travel seat. In this embodiment, the angle of inclination of the backrest 10 is adjustable such that the person occupying the seat can to a certain extent occupy a lying position. Tests have shown that, when taking up a lying position, the buttocks of the per
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Brown Peter R.
Lyddane William E.
Marn Louis E.
Messrs. Willibald Grammer
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