Title:
AIR BREATHER DEVICE OF GEAR BOX
Document Type and Number:
Japanese Patent JPS5913171
Kind Code:
A
Abstract:
PURPOSE:To prevent a leak of oil from a plug in a device where the breather plug is provided to an upper part of a case or the like forming a gear box, by forming upper and bottom two chambers in the bottom of an opening part in the gear box of said plug. CONSTITUTION:An air breather device 20 is constituted such that a screw hole 7 is formed to be internally and externally extended through the upper surface of a rear cover 6 and a breather plug 21 is mounted to this hole 7. The breather plug 21 is operated such that if internal pressure of an oil chamber rises, a valve 23 is opened against a spring 24 and the oil chamber is communicated to the outside air. Here a space formed from an air passage 25 to the screw hole 7 and divided between a set of ribs 8 integrally formed with a rear cover 6 is divided into upper and bottom two chambers 26, 27 by a rib 9 integrally formed with the rear cover 6. In this way, one flow B of lubricating oil generated by rotary action of a ring gear 13 is prevented from flowing into the chamber 26 in the upper part by the rib 9, and the desired end is attained.
Inventors:
FUKUNAGA KOUICHI
TANAKA JIYUNICHI
TANAKA JIYUNICHI
Application Number:
JP12140582A
Publication Date:
January 23, 1984
Filing Date:
July 12, 1982
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD
International Classes:
B60K17/06; F16H57/02; F16H57/027; F16K24/00; F16K24/04; (IPC1-7): B60K17/06; F16K24/00
Attorney, Agent or Firm:
Hidehiko Okada