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Title:
CONTROL SWITCH FOR USE WITH AUTOMATIC TRANSMISSION
Document Type and Number:
Japanese Patent JP3956433
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To make it difficult for water and mud to enter a breather hole by opening the breather hole, which causes the interior and exterior of a housing to communicate with each other, on the side of a mounting surface relative to an automobile.
SOLUTION: A breather hole 30 is opened round shape with a sinking-in s from an outer side surface of a body base 3 and step parts 31, 32 whose larger diameter abuts to the outer side surface of the base 3 are formed on its inner circumferential surface. A cap 33 formed into a columnar shape of a synthetic resin is fit into the breather hole 30, and a peripheral part of a filter 34 is sandwiched between the step part 32 and the cap 33. The filter 34 is formed of a waterproof material having air permeability. A gap between a larger diameter part 33d of the cap 33 and a larger hole part 33a of the breather hole 30 is set up so as to be larger than the gap between a smaller diameter part 33e and a smaller hole part 30b. That is, the filter 34 and the cap 33 are dropped sequentially into the breather hole 30 and a step part 33c of the cap 33 are placed on the step part 31 of the breather hole 30, so that as to have the breather hole 30 open on the side of a mounting surface of an automobile by executing ultrasonic thermal welding.


Inventors:
Mihara, Haruhiko
Application Number:
JP1997000206794
Publication Date:
August 08, 2007
Filing Date:
July 31, 1997
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC WORKS LTD
International Classes:
B60K20/00; H01H21/08; F16H59/10; H05K5/06; (IPC1-7): H01H21/08; B60K20/00
Domestic Patent References:
JP6012587Y2
JP63113137U
JP3179625A
JP5320255A
JP8129931A
Attorney, Agent or Firm:
西川 惠清
森 厚夫



 
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