Abstract: A hypocycloid reducer 70 for reducing rotation of a flat motor 60 to output the speed-reduced rotation to a drum is provided between the drum and the flat motor 60, a rotor shalt member 65 which is rotated with the same rotation number as the flat motor 60 is axially aligned with the drum is provided on the same side as the flat motor 60. An output rotation body 74 for outputting the speed-reduced rotation is axially aligned with the drum and provided on the same side as the drum. Since the rotor shaft member 65 and the output rotation body 74 are axially aligned with the drum, turning force can be transmitted bi-directionally between the rotor shaft member 65 and the output rotation body 74. Therefore, it is possible to eliminate an electromagnetic clutch to reduce the driving apparatus in size and weight, and since wires and control logic of the electromagnetic clutch are not needed for the driving apparatus, the driving apparatus can be reduced in production cost.

Abstract: A hypocycloid reducer 70 for reducing rotation of a flat motor 60 to output the speed-reduced rotation to a drum is provided between the drum and the flat motor 60, a rotor shalt member 65 which is rotated with the same rotation number as the flat motor 60 is axially aligned with the drum is provided on the same side as the flat motor 60. An output rotation body 74 for outputting the speed-reduced rotation is axially aligned with the drum and provided on the same side as the drum. Since the rotor shaft member 65 and the output rotation body 74 are axially aligned with the drum, turning force can be transmitted bi-directionally between the rotor shaft member 65 and the output rotation body 74. Therefore, it is possible to eliminate an electromagnetic clutch to reduce the driving apparatus in size and weight, and since wires and control logic of the electromagnetic clutch are not needed for the driving apparatus, the driving apparatus can be reduced in production cost.

Abstract: A linear actuator capable of setting a bed to a flat state in emergencies is provided.

Abstract: A linear actuator capable of making a bed flat in emergencies is provided. A sub-shaft 52 linking to the worm reduction gear, an inner race 59 coupled by a spline on the sub-shaft 52, an engaging pin 83 and an engaging notch 92 provided between the shaft 16 and the inner race 59 to allow free linking, an operating ring 66 fitting for free rotation on the outer circumference of a housing 11, and a function ring 72 for converting the rotation of the operating ring 66 to an axial movement and transmitting it to the inner race 59 are installed on a linear actuator 10 containing a shaft 16 with a male screw 17, a worm reduction gear for transmitting the rotation of a motor 40 to the shaft 16, a nut 19 that is coupled by a screw to the male screw 17 and advances or retreats by the forward rotation of the shaft 16 and advances or retreats by the reverse rotation of the shaft 16, and a moving cylinder 12 that is fixed to the nut 19 and advances and retreats relative to the housing 11.

Abstract: A linear actuator capable of making a bed flat in emergencies is provided. A sub-shaft 52 linking to the worm reduction gear, an inner race 59 coupled by a spline on the sub-shaft 52, an engaging pin 83 and an engaging notch 92 provided between the shaft 16 and the inner race 59 to allow free linking, an operating ring 66 fitting for free rotation on the outer circumference of a housing 11, and a function ring 72 for converting the rotation of the operating ring 66 to an axial movement and transmitting it to the inner race 59 are installed on a linear actuator 10 containing a shaft 16 with a male screw 17, a worm reduction gear for transmitting the rotation of a motor 40 to the shaft 16, a nut 19 that is coupled by a screw to the male screw 17 and advances or retreats by the forward rotation of the shaft 16 and advances or retreats by the reverse rotation of the shaft 16, and a moving cylinder 12 that is fixed to the nut 19 and advances and retreats relative to the housing 11.

Abstract: A linear actuator capable of setting a bed to a flat state in emergencies is provided.