Tool holding and conveying chain

摘要

There is provided a tool holding and conveying chain adapted to securely lock and position a tool pot, i.e., a connecting pin, to a pin hole of either an outer or inner link plate so that the tool pot does not to turn and to achieve steady and smooth attachment and removal of a tool in and out of the tool pot with a simple attachment structure. The tool pot has a pair of positioning flat portions formed by cutting a link plate attaching outer circumferential region of the tool pot and the outer link plate has a pair of positioning cooperative flat portions formed so as to bulge out of an inner circumference to a center of a pin hole. The positioning flat portions of the tool pot is fitted into and locked by the positioning cooperative flat portions when the tool pot is attached in the link plate.

主权项

1. A tool holding and conveying chain, comprising:
outer link plates; inner link plates; and connecting pins for alternately connecting said outer link plates with said inner link plates so that the outer and inner link plates alternate along a length of the chain, and the connecting pins being adapted as tool pots for removably holding and conveying tools, each tool pot being configured to receive a respective tool that is inserted therein along a tool insertion direction; each said tool pot having a pair of positioning flat portions formed by cutting a link plate attaching outer circumferential region of said respective tool pot at a common location along the tool insertion direction so as to be located on opposite sides of a center axis of the respective tool pot on an outer periphery of the respective tool pot; and either each said outer link plate or each said inner link plate has pin holes, in each of which pin holes a pair of positioning cooperative flat portions are formed so as to be located on opposite sides of a center axis of the respective pin hole on an inner peripheral surface of the respective pin hole; said positioning flat portions of each said tool pot being fitted into a respective one of the pin holes and being locked by said positioning cooperative flat portions of said respective one of the pin holes when each said tool pot is attached in said respective one of the pin holes.