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US 12,285,372 B2Granted
Control device and bed device
AssigneeParamount Bed Co., Ltd.
InventorsToshiki Matsubayashi, Masato Shimokawa
Life of this patent
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Abstract
A control device includes a controller that controls, based on a first changing amount of extension/contraction of an axis of a first actuator of a bed device, a speed of the extension/contraction of the axis of the first actuator.
Claims16
A control device of a bed device comprising:
- a controller comprising a circuit configured to control a first speed of an extension/contraction of a first actuator that controls a first movable part of the bed device and a second speed of an extension/contraction of a second actuator that controls a second movable part of the bed device, based on a first changing amount of extension/contraction of the first actuator and a second changing amount of extension/contraction of the second actuator, so as to maintain a surface of the bed device in a horizontal state when the controller is configured to control the first actuator and the second actuator to lift or lower the surface of the bed device,
- wherein
- each of the first and second actuators includes an extendable rod and a drive source connected to the extendable rod respectively,
- a difference between a maximum length and a minimum length of the extendable rod of the first actuator is different from a difference between a maximum length and a minimum length of the extendable rod of the second actuator,
- the circuit of the controller controls the first and second actuators so that a speed of a motion of the first movable part and a speed of a motion of the second movable part are substantially identical, thereby maintaining the surface of the bed device in the horizontal state during operation of the first and second actuators, and
- one of the first actuator and the second actuator has different speed from the other in changing amount of extension/contraction of actuators.
3 more elements
A control device comprising:
- a controller comprising a circuit, and
- a bed device including a first movable part and a first actuator that moves the first movable part, and a second movable part and a second actuator that moves the second movable part,
- the circuit of the controller controlling the first actuator based on first relation information related to a relation between a first changing amount of a motion of the first actuator and a second changing amount of a motion of the first movable part, so as to maintain a surface of the bed device in a horizontal state when the controller is configured to control the first actuator and the second actuator to lift or lower the surface of the bed device, wherein
- each of the first and second actuators includes an extendable rod and a drive source connected to the extendable rod respectively,
- a difference between a maximum length and a minimum length of the extendable rod of the first actuator is different from a difference between a maximum length and a minimum length of the extendable rod of the second actuator,
- the circuit of the controller controls the first and second actuators so that a speed of the motion of the first movable part and a speed of a motion of the second movable part are substantially identical, thereby maintaining the surface of the bed device in the horizontal state during operation of the first and second actuators, and
- one of the first actuator and the second actuator has different speed from the other in changing amount of extension/contraction of actuators.
4 more elements
Dependencies are inferred from the claim text.