Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
MANUFACTURE OF HOSE HAVING EXPANDED DIAMETRAL PART ON TIP
Document Type and Number:
Japanese Patent JPH05301286
Kind Code:
A
Abstract:

PURPOSE: To reduce cost of a mandrel and manufacture inexpensively a hose having an expanded diametral part on the tip, by a method wherein the mandrel constituted of a cylindrical jig having the same outside diameter as the inside diameter of the hose to be manufactured and a cap jig which is capable of connecting with the tip of the cylindrical jig and has a forming part of an expanded diameter is inserted into unvulcanized hose and vulcanized.

CONSTITUTION: A cylindrical jig 2 possesses the same outside diameter as the inside diameter of a hose to be manufactured and the tip is provided with a connecting part 22. A cap jig 3 possesses a forming part 31 of an expanded diameter having the larger outside diameter than the outside diameter of the cylindrical jig 2. The cylindrical jig 2 is inserted into an unvulcanized hose 1' through one end of the same. Then the cap jig 3 is inserted through the other end, connected with a connecting part 22 and fixed. At this time, an expanded diametral part is formed on the tip part of the unvulcanized hose 1' by the forming part 31 of the expanded diameter. This unvulcanized hose 1' is vulcanized. Therefore, at the time of manufacturing of the hose having a different diameter at an expanding diametral part of the tip, only the cap jig 3 need be changed.


Inventors:
MITSUI KENICHI
Application Number:
JP10688192A
Publication Date:
November 16, 1993
Filing Date:
April 24, 1992
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
TOYODA GOSEI KK
International Classes:
B29C57/02; (IPC1-7): B29C57/02
Attorney, Agent or Firm:
Hiroshi Okawa