Title:
【発明の名称】渦電流式減速装置の温度検出装置
Document Type and Number:
Japanese Patent JP2759848
Kind Code:
B2
Abstract:
PURPOSE:To detect overheat state of a brake drum from the ambient temperature thereof with high accuracy through a simple structure. CONSTITUTION:An annular notch 20 having substantially rectangular cross section is made in the inner peripheral surface 4d at the end of a brake drum 4 comprising a conductor. A permanent magnet 6 opposing to the inner peripheral surface 4d of the brake drum 4 and having alternating polarities in the circumferential direction is supported on a magnet supporting ring 8 and a projecting temperature sensor 25 is disposed, closely to the annular notch 20 in the brake drum 4, on a fixed frame 9 for guiding and supporting the magnet supporting ring 8. Since the temperature sensor 25 is covered, at the peripheral surface and the end part thereof, by the annular notch 20 of the brake drum 4, overheat state of the brake drum 4 can be detected accurately from the ambient temperature.
Inventors:
KUWABARA TOORU
SUNAKAWA NORIO
ARAKI KENJI
SUNAKAWA NORIO
ARAKI KENJI
Application Number:
JP1699291A
Publication Date:
May 28, 1998
Filing Date:
January 17, 1991
Export Citation:
Assignee:
ISUZU JIDOSHA KK
SUMITOMO KINZOKU KOGYO KK
SUMITOMO KINZOKU KOGYO KK
International Classes:
B60L7/28; H02K11/00; H02K49/02; (IPC1-7): H02K49/02; H02K11/00
Attorney, Agent or Firm:
Toshio Yamamoto