Honda Giken Kogyo Kabushiki Kaisha

Daido Kogyo Co., Ltd.

Daido-Kogyo Kabushiki Kaisha

Hiroshi Fukumoto

Shoichi Honda

Masahiro Nagae

Masanori Taga

Punch machine has a plurality of punches and dies for punching a hole out of a sheet, a driving means for reciprocating in a direction intersecting with respect to the punch by the driving force of driving source , and cam mechanisms for changing the motion of the driving means into the movement direction of the punch so as to transmit to the punch between the punch and the driving means. A plurality of punches are divided into first group and second group. The cam mechanism provided between each punch of the first group and the driving means moves each punch by the motion operation of the driving means in a first direction, and the cam mechanism provided between each punch of the second group and the driving means moves each punch by the motion operation of the driving means in a second direction. Different pattern of punching is respectively possible by the first and second groups of punches.

Punch machine

A chain constituted by an endlessly connected link plate groups each consisting of a plural number of link plates with paired pin-receiving holes and successively connected with adjacent link plate groups with the respective link plates intermeshed with the link plates of adjacent groups and with a shift of one pitch from the latter, by means of paired rocker pins inserted in the pin-receiving holes of the intermeshed link plates in back-to-back relation with each other, the rocker pins being formed in an arcuate shape and spaced from each other by a predetermined gap space when the centers of the pin-receiving holes of the intermeshed link plates are brought into alignment with each other. The chain may be assembled in such a manner as to maintain the gap space when the chain is lapped around a rotational drive member and a driven member, or in such a manner that the pin-receiving holes of the preceding and succeeding link plate groups are offset in the direction of the pitch line when the chain is fitted in position.

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Kaga, Japan

Hiroshi Fukumoto