Seat apparatus
First Claim
1. A seat apparatus comprising:
- a seat cushion on which an operator is seated;
a seatback supporting the operator seated on the seat cushion, the seatback being configured to incline forward to reduce an angle of the seatback relative to the seat cushion and to incline rearward to increase the angle of the seatback relative to the seat cushion;
a seatback drive device inclining the seatback forward and rearward relative to the seat cushion;
a seatback operating switch provided at a position where is reached by the operator seated on the seat cushion, the seatback operating switch operating the seatback driving device in response to an operation of the switch; and
an excessive load restricting device restricting an excessive load applied to the operator seated on the seat cushion by limiting a forward inclination of the seatback when the seatback operating switch is operated so as to incline the seatback forward.
1 Assignment
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Accused Products
Abstract
A seat apparatus includes a seat cushion on which an operator is seated, a seatback supporting the operator seated on the seat cushion, the seatback being configured to incline forward to reduce an angle of the seatback relative to the seat cushion and to incline rearward to increase the angle of the seatback relative to the seat cushion, a seatback drive device inclining the seatback forward and rearward relative to the seat cushion, a seatback operating switch provided at a position where is reached by the operator seated on the seat cushion, the seatback operating switch operating the seatback driving device in response to an operation of the switch, and an excessive load restricting device restricting an excessive load applied to the operator seated on the seat cushion by limiting a forward inclination of the seatback when the seatback operating switch is operated so as to incline the seatback forward.
15 Citations
12 Claims
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1. A seat apparatus comprising:
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a seat cushion on which an operator is seated;
a seatback supporting the operator seated on the seat cushion, the seatback being configured to incline forward to reduce an angle of the seatback relative to the seat cushion and to incline rearward to increase the angle of the seatback relative to the seat cushion;
a seatback drive device inclining the seatback forward and rearward relative to the seat cushion;
a seatback operating switch provided at a position where is reached by the operator seated on the seat cushion, the seatback operating switch operating the seatback driving device in response to an operation of the switch; and
an excessive load restricting device restricting an excessive load applied to the operator seated on the seat cushion by limiting a forward inclination of the seatback when the seatback operating switch is operated so as to incline the seatback forward. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10)
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2. A seat apparatus comprising:
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a seat cushion on which an operator is seated;
a seatback supporting the operator seated on the seat cushion, the seatback being configured to incline forward to reduce an angle of the seatback relative to the seat cushion and to incline rearward to increase the angle of the seatback relative to the seat cushion;
a seatback drive device inclining the seatback forward and rearward relative to the seat cushion;
a seatback operating switch provided at a position where the seatback operating switch can be operated by the operator seated on the seat cushion, the seatback operating switch operating the seatback drive device in response to an operation of the switch; and
a control unit controlling the seatback drive device by operating the seatback operating switch, the control unit including;
a range determining device determining if a present position of the seatback is within an excessive load restricting range in which an application of an excessive load to the operator seated on the seat cushion is restricted by limiting the angle of the seatback; and
a seatback inclination restricting device restricting a forward inclination of the seatback by limiting a driving of the seatback drive device regardless of the operation of the seatback operating switch when the range determining means determines that the present position of the seatback is within the excessive load restricting range. - View Dependent Claims (11, 12)
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Specification