Title:
PRESSING DEVICE FOR SPIGOT RING OF CAST IRON PIPE
Document Type and Number:
Japanese Patent JP3217283
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To automatically press a spigot ring into a spigot to form a projecting part to be engaged with the inner surface of a socket for slip prevention on the spigot of a cast iron pipe.
SOLUTION: This spigot ring pressing device is composed of a pipe supporting part 21 in which a pairs of rollers 20, 20 whose axes are parallel to each other are aligned in parallel with a pipe axis 1A and along the pipe axis 1A, a pipe supporting frame 23 provided with a reaction supporting plate 22 for axially supporting the pipe end of the pipe 1 on the pipe supporting part 21, a spigot ring supporting ring 24 facing the other side pipe end on the pipe supporting frame 23, a propulsion device 25 for pressing the spigot ring supporting ring 24 to the pipe end on the pipe supporting frame 23, and a packing which is an elastic ring body to be fitted between the inner surface of a spigot ring supporting ring 24 and the outer surface of the spigot ring, provided with a rib extending on the inner surface in the radial direction.
Inventors:
Shigeru Yamamoto
Motoki Onishi
Motoki Onishi
Application Number:
JP31021796A
Publication Date:
October 09, 2001
Filing Date:
November 21, 1996
Export Citation:
Assignee:
Kubota Corporation
International Classes:
F16L9/02; F16L19/04; (IPC1-7): F16L19/04; F16L9/02
Domestic Patent References:
| JP55115681A | ||||
| JP56031Y2 |
Attorney, Agent or Firm:
Yoshihiro Morimoto
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