Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
CAR ALARM
Document Type and Number:
WIPO Patent Application WO/2019/102689
Kind Code:
A1
Abstract:
A car alarm (1) comprises a first high-hardness part (22a) having a surface hardness higher than the hardness of the base material of a fixed iron core (22), and a second high-hardness part (4a) having a surface hardness higher than the hardness of the base material of a movable iron core (4). The first high-hardness part is provided on at least the end surface of the fixed iron core facing the movable iron core along the axial direction. The second high-hardness part is provided on at least the end surface of the movable iron core facing the first high-hardness part along the axial direction. Thereby, it is possible to suppress the wear caused by collision between the movable iron core and the fixed iron core; to prevent increased movement of the movable iron core with respect to the fixed iron core caused by repeated collisions; to improve the lifetime of a car alarm; and to obtain both connection stability during manufacturing and a better operation lifetime.

More Like This:
Inventors:
SUZUKI Shingo (C/O HAMANAKODENSO CO. LTD, 136, Washiz, Kosai-city Shizuoka 31, 〒4310431, JP)
WATANABE Mikio (C/O HAMANAKODENSO CO. LTD, 136, Washiz, Kosai-city Shizuoka 31, 〒4310431, JP)
Application Number:
JP2018/033729
Publication Date:
May 31, 2019
Filing Date:
September 12, 2018
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
HAMANAKODENSO CO., LTD. (136 Washizu, Kosai-city Shizuoka, 31, 〒4310431, JP)
International Classes:
G10K9/13; B60Q5/00; B62J3/00; G10K9/12; G10K9/15
Foreign References:
JP2016218110A2016-12-22
JP2009063860A2009-03-26
JP2003122369A2003-04-25
JP2000224872A2000-08-11
Attorney, Agent or Firm:
JIN Shunji (6th Floor, Takisada Bldg. 2-13-19, Nishiki, Naka-k, Nagoya-city Aichi 03, 〒4600003, JP)
Download PDF: