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Automatic opening and closing device

An automatic opening and closing, worm technology, which is applied in household appliances, sanitary equipment, applications, etc., can solve the problems of miniaturization and light weight of the device, and achieve the effect of reducing the amount of tooth gap, reducing noise, and preventing enlargement

Inactive Publication Date: 2007-12-05
TOTO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the automatic opening and closing device described in Patent Document 1, since the output shaft of the motor and the rotation axis of the gear train of the reduction gear mechanism face in different directions, it is difficult to reduce the size and weight of the device.

Method used

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Examples

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Embodiment Construction

[0027] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Fig. 1 shows a cross-sectional view of an automatic opening and closing device according to an embodiment of the present invention, Fig. 2 is a cross-sectional view along line A-A in Fig. 1 , and Fig. 3 is a partially enlarged view of Fig. 2 .

[0028] As shown in Figures 1 to 3, the automatic opening and closing device 10 of the present embodiment includes: a motor 13 with a worm screw 11 having two heads and above is installed on a rotating shaft 12; The output shaft 14 shown in the figure); and the reduction gear mechanism 15 that decelerates the rotation of the worm 11 and transmits it to the output shaft 14. The reduction gear mechanism 15 has two plates 19 , 20 arranged in parallel across the three support members 16 , 17 , 18 , and a gear train 21 composed of a plurality of gears arranged between the plates 19 , 20 . Moreover, the gear set 21 is provided with a fi...

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Abstract

An automatic switching device is provided to realize miniaturizing, lightweighting and silencing the automatic switching device of toilet-seat and toilet-cover. The automatic switching device (10) comprises: motor (13) mounted on rotation axis (12) with two or more worm gears (11); output axis (14) for switching toilet-seat and toilet-cover; reduction gear unit (15) for decelerating the revolution of worm gears (11) and transfering it to output axis (14). The reduction gear unit (15) is composed of two plates (19,20) for grasping three supporting parts (16) and being in point-against-back arrangement; and a number of gear set (21) between the plates (19,20). A first helical gear (22) for engaging with worm gears (11) and rotating, subsidiary worm gears for linkaging and rolling on the same supporting axes (23) with the first helical gear and a second helical gear (22) for engaging with subsidiary worm gears and rotating are installed on the gear set (21). In addition, the supporting axes (26,27) of gear set (21) are axially supported on the plates (19,20).

Description

technical field [0001] The present invention relates to an automatic opening and closing device for opening and closing a toilet seat or a toilet lid included in a Western-style toilet with the driving force of a motor. Background technique [0002] The automatic opening and closing device of the western toilet, in the past, in order to reduce the running noise, the output shaft of the motor as the power source is provided with a worm with a head number of 2 or more, and the initial stage of the reduction gear mechanism is used. The helical gear receives the rotation of the worm and transmits it to the opening and closing support shaft of the toilet seat and toilet lid (for example, refer to Patent Document 1). [0003] However, in the automatic opening and closing device described in Patent Document 1, since the output shaft of the motor and the rotation axis of the gear train of the reduction gear mechanism face in different directions, it is difficult to reduce the size a...

Claims

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Application Information

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IPC IPC(8): A47K13/10
Inventor 福田达也寺田义郎高田英树
Owner TOTO LTD
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