Electric bed

A technology of electric bed and DC motor, applied in the field of electric bed, can solve the problems of inability to use, high cost, difficulty in obtaining electric power, etc., and achieve the effect of reducing size and weight, and high safety

Active Publication Date: 2013-06-19
PARAMOUNT BED CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] An electric bed that uses a battery during a power outage is expensive, and in the case of a rechargeable type, if you forget to charge it,

Method used

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Examples

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Embodiment 1

[0055] The specifications of one embodiment of the manual generator 1 described above will be as follows.

[0056] Input obtained manually: 10~50[N]

[0057] The rotational speed of the input shaft under manual operation: 30~120[rpm]

[0058] Reduction ratio (gear ratio): 1 / 15.5

[0059] Rotational shaft speed: 465~1860[rpm]

[0060] Power generation: 10~30[VA]

[0061] In this embodiment, since the speed-up mechanism 4 constituting the manual power generator 1 is constituted by a worm gear mechanism, the size and weight can be greatly reduced, so it can be housed in the device body 5 of a size that can be held by hand. The constituent parts can realize the manual power generator 1 that can meet the above-mentioned specifications. In the worm gear transmission mechanism, the crank handle 7 side is made into a worm wheel 15, and the DC motor 2 side is made into a double-threaded worm 16.

[0062] In addition, in the electric bed of the present invention, the DC motor 2 and ...

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Abstract

The purpose of the present invention is to increase freedom of design because conventional electric beds had little freedom of design including the installation position of the crank handle. In this bed which uses an actuator having a rotational motion-to-linear motion conversion mechanism to raise a floor section and perform an undulating action, the rotating side of the rotational motion-to-linear motion conversion mechanism of the actuator is configured by a DC motor and a deceleration mechanism, and the bed has a configuration whereby power to the DC motor is selectively supplied by a controller (18) connected to a commercial power supply and a manual generator (1) driven by a crank handle (7). The manual generator houses the DC motor capable of reverse operation and an acceleration mechanism in a container (5), and has a configuration whereby a power supply cable (8) and the crank handle connected to the input shaft of the acceleration mechanism are provided on the outside of the container. The acceleration mechanism has greatly reduced size and weight, as a result of being configured from a worm gear mechanism using the crank handle side as a worm wheel and the DC motor side as a multiple-thread screw worm.

Description

technical field [0001] The present invention relates to an electric bed, in particular to an electric bed capable of lifting and undulating the bottom of the bed in an emergency such as a power failure. Background technique [0002] As an electric bed that lifts and undulates the bottom of the bed through an actuator having a DC motor, a reduction mechanism, and a rotation-direction conversion mechanism, electric beds with various structures have been proposed before, and are currently in use. Such an electric bed is provided with a controller for operating the DC motor of the actuator using a commercial power supply, and a predetermined DC voltage is obtained from the commercial power supply through the controller, and the DC voltage is applied to the DC motor. As this DC voltage, for example, 24V is widely used. [0003] In addition, among such electric beds, there are many electric beds that adopt a scheme for performing lifting and undulating operations of the bottom of...

Claims

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Application Information

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IPC IPC(8): A47C20/04
CPCA47C20/041A47C19/045F04C2270/0421
Inventor 长冈浩石桥佳宜长濑和幸松本孝树
Owner PARAMOUNT BED CO LTD
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