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Patent Searching and Data


Title:
THROTTLE DEVICE
Document Type and Number:
Japanese Patent JP2018204581
Kind Code:
A
Abstract:
To provide a technology capable of reducing the wear of a member abutting on a coil spring.SOLUTION: A throttle device is equipped with a body; a valve body; a throttle gear which rotates the valve body; a coil spring which energizes the valve body; a motor; a motor gear; and an intermediate gear which is rotatably attached to a pin extending from the body, between the motor gear and the throttle gear. The coil spring is equipped with a first spring portion which energizes the valve body toward an initial opening when the valve body rotates in a direction opening from the initial opening; a second spring portion which energizes the valve body toward the initial opening when the valve body rotates in a direction closing from the initial opening; and a coupling portion which couples the first spring portion and the second spring portion between the first spring portion and the second spring portion. The coupling portion abuts on the pin when the valve body is at the initial opening, and the pin and the coil spring may be produced from a material harder than the body.SELECTED DRAWING: Figure 3

Inventors:
KOKUBU TOSHIHIDE
YAMAGUCHI SHINYA
Application Number:
JP2017113541A
Publication Date:
December 27, 2018
Filing Date:
June 08, 2017
Export Citation:
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Assignee:
AISAN IND
International Classes:
F02D11/10; F02D9/02; F02D9/10
Domestic Patent References:
JP2005146992A2005-06-09
JP2002013570A2002-01-18
JP2013117267A2013-06-13
JPH03233146A1991-10-17
Attorney, Agent or Firm:
Kaiyu International Patent Office