Title:
CLAMP FOR ELECTROFUSION JOINT
Document Type and Number:
Japanese Patent JP3197923
Kind Code:
B2
Abstract:
PURPOSE: To improve workability by a method wherein a clamp which is used during fusion of a plastic pipe and an electrofusion joint and grasp a plastic pipe on both sides of the joint is formed to facilitate setting of a crank angle according to a kind of a joint.
CONSTITUTION: A bed 14 protruded from the one clamp part 12 is fixed to a disc-shaped coupling disc 13 and a bed 16 protruded from the other clamp part 12 is rotatably coupled to the central part of the coupling disc 13 by means of a hinge pin 15. Through-holes 17a-17c are formed at intervals of 45° in the peripheral edge of the coupling disc 13 and a through-hole 18 is formed in the bed 16. Bolts are inserted through some of the through-holes 17a and 16c and the through-hole 18. By changing the through-hole in which the bolt is inserted, a clamp angle is changed to some of 90°, 135°, and 180°.
Inventors:
Masahiro Hirata
Naotake Uda
Takayuki Handa
Naotake Uda
Takayuki Handa
Application Number:
JP31947291A
Publication Date:
August 13, 2001
Filing Date:
December 04, 1991
Export Citation:
Assignee:
Mitsui Chemicals, Inc.
International Classes:
B29C65/36; B29C65/78; F16L47/02; B29L31/24; (IPC1-7): F16L47/02; B29C65/36
Domestic Patent References:
| JP2195088A | ||||
| JP192592U | ||||
| JP2119593U |
Attorney, Agent or Firm:
Koichi Sato