Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
CONTACT OF MAGNET SWITCH AND ITS MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/1993/022783
Kind Code:
A1
Abstract:
Contacting parts of the contact of a magnet switch for starters, whose heat-dissipating property are improved and whose manufacturing costs are suppressed from increasing. First holes (29a) are made in a plate (27) by a punch (28) having a plurality of protruding parts which are arranged respectively in mutually perpendicular directions at equal pitches P. The pitch P is twice as long as each side of the first holes (29a). Second holes (29b) are made through shifting the punch (28) in the longitudinal and lateral directions by a half P/2 of the pitch P with respect to the first holes (29a). Thereby, a checkered pattern is formed by the holes and protruding parts (26) where the holes are not made. Since the respective protruding parts (26) are independent of each other, they have high heat-dissipating properties, and their contact resistances are prevented from increasing due to high temperature. Thereby, the efficiency of the starter can be improved, and the cost of manufacturing the contacting parts can be suppressed from increasing by the easy hole making.

Inventors:
KOGURE MITSUHIRO (JP)
NAGASHIMA SHINICHI (JP)
WAKABAYASHI KAZUHISA (JP)
ENKAKU SHIGEYUKI (JP)
SHIMAYAMA HITOSHI (JP)
KIMURA MINORU (JP)
SHIMOYAMA SHUJI (JP)
YOKOO TSUGIO (JP)
Application Number:
PCT/JP1993/000588
Publication Date:
November 11, 1993
Filing Date:
April 30, 1993
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
MITSUBA ELECTRIC MFG CO (JP)
KOGURE MITSUHIRO (JP)
NAGASHIMA SHINICHI (JP)
WAKABAYASHI KAZUHISA (JP)
ENKAKU SHIGEYUKI (JP)
SHIMAYAMA HITOSHI (JP)
KIMURA MINORU (JP)
SHIMOYAMA SHUJI (JP)
YOKOO TSUGIO (JP)
International Classes:
H01H1/06; H01H50/54; H01H11/04; H01H51/06; (IPC1-7): H01H50/54; H01H1/06
Foreign References:
JPS5515707U1980-01-31
JPS55154014A1980-12-01
JPS58178919A1983-10-20
JPS5128341B11976-08-18
JPS56167431U1981-12-11
JPS535768U1978-01-19
Other References:
See also references of EP 0593788A4
Download PDF: