초록 ▼

A seat, for example, a wheelchair, comprises a seat part, a backrest part, armrests, and footrests. The seat part and the backrest part have a commonly adjustable width, e.g. the side support portions can essentially be inserted into portions of a central frame part, and transversal bars in the back

A seat, for example, a wheelchair, comprises a seat part, a backrest part, armrests, and footrests. The seat part and the backrest part have a commonly adjustable width, e.g. the side support portions can essentially be inserted into portions of a central frame part, and transversal bars in the backrest have adjustable widths. The seat part also has adjustable front and rear edges, obtained by adjusting adjustable front and rear support portions. The inclination of the backrest is adjusted by clamping screws mounted in side plate portions provided with slots. The height of the backrest can also be adjusted by displacing an upper portion thereof. The inclination of the footrests is varied by moving hinges having a large frictional force normally holding them stationary.

대표청구항 ▼

1. A chair upper unit comprising:a backrest, and a seat part having an upper surface which is adapted to engage the buttocks of a person seated in the chair upper unit, the upper surface defining a seat plane; and wherein at least one of said seat part and said backrest comprises thin stiff base pla

1. A chair upper unit comprising:a backrest, and a seat part having an upper surface which is adapted to engage the buttocks of a person seated in the chair upper unit, the upper surface defining a seat plane; and wherein at least one of said seat part and said backrest comprises thin stiff base plates forming a rigid base in a plane substantially parallel to the seat plane and a softer cushion disposed engaging said rigid base, said base plates being interconnected and slidable with respect to each other to adjust at least one of the width, depth and height of said rigid base.