Title:
ROD CLEANING DEVICE FOR WORKING MACHINE
Document Type and Number:
Japanese Patent JP2813133
Kind Code:
B2
Abstract:
PURPOSE: To prevent concrete milk, etc., adhered to a rod from being splashed.
CONSTITUTION: A swing stop mechanism 18 which is installed on a leader located on the underside of a rotating drive mechanism to rotate a rod 14 at the tip of which a drilling bit is attached is provided with a set of open and close guide 30 capable of rotating around a pivot shaft in parallel with the rod 14, and a guide hole 42 to support the rod 14 rotatably with the open and close guide 30 closed is formed. Also elastic cleaning plates 52 and 54 are installed between the set of open and close guide 30 with these plates projected through the guide hole 42 and with the edge parts 52a and 54a of cleaning plates 52 and 54 made in contact with the outer periphery of the rod 14 along its axial direction.
Inventors:
Norio Murate
Takanori Yamazaki
Tomita
Takanori Yamazaki
Tomita
Application Number:
JP12022194A
Publication Date:
October 22, 1998
Filing Date:
June 01, 1994
Export Citation:
Assignee:
Nippon Vehicle Manufacturing Co., Ltd.
International Classes:
E21B3/02; E21B12/06; (IPC1-7): E21B12/06
Domestic Patent References:
| JP60169386U |
Attorney, Agent or Firm:
Adachi Tsutomu