US 4,286,379 AGranted

Apparatus for detecting leads

AssigneeMatsushita Electric Industrial Co., Ltd.

InventorsHidetoshi Kawa, Kazuhiro Mori, Kazuo Watanabe, Yoshihiko Misawa

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Abstract

An apparatus for detecting whether or not the leads of electronic components such as dual in-line package type IC components have been properly inserted into printed circuit boards and also for properly clinching the projecting portions of the leads to the rear side of the boards. The apparatus comprises a pair of openable or closable lever main bodies, levers pivotably supported on the lever main bodies by pins disposed at right angles with the opening or closing direction to come into contact with the leads to be detected, elastic members for delivering a lever main body closing force to the levers, and photoelectric means mounted on the lever main bodies for detecting the movement of the levers relative to the lever main bodies.

Claims6

Dependent claims

An apparatus for detecting leads comprising:

a pair of lever main bodies movable toward or away from each other, each at least at its one end,
a plurality of levers corresponding to the leads and pivotably supported on each of the main bodies by a pin intersecting the plane of movement of the end of the lever main body,
an elastic member provided between each of the lever main bodies and the levers mounted thereon and biasing one end of each of the levers toward one end of the corresponding lever on the other lever main body to bring the lever into contact with a first stopper, the elastic member being elastically deflectable by a force smaller than the force required to clinch the lead,
a second stopper for restraining each of the levers from turning relative to the lever main body more than a specified amount in a direction opposite to the direction in which the lever is biased by the elastic member, and
a detector including photoelectric means mounted on the lever main body for detecting whether or not the lever is in contact with the second stopper.

2 more elements

Dependencies are inferred from the claim text.