Title: Device, particularly of the pliers or scissors type

Abstract: A tool with a variable force transmission ratio between the handles, which receive the driving force, and the working jaws adapted to perform the desired work, comprising a first stationary working jaw and a second movable working jaw journalled in a first pivot point to the first jaw, having an elongated cam profile arranged beyond said first pivot point and with the exception of eventual adjustments fixedly connected with and extending essentially in the same direction as the first jaw, the second jaw being prolonged beyond said first pivot point by an extension to which an operative means for receiving the driving force is journalled in a second pivot point spaced from the first pivot point, which operative means is rigidly connected to contact means arranged in such a manner that when the operative means are actuated by a driving force the contact means is pressed against the cam profile and made to follow it.

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Inventors: Undin, Hans (Akersberga, SW)

Application Number: 647437
Filing Date: 1976-01-08
Publication_date: 1977-09-20
Assignee: Pressmaster Ltd. (Stockholm, SW)
Primary Class(es): 81/313 29/751, 81/383.5
Other Classes:
US Patent Ref:

2616316	Nov, 1952	Dupre	81/383.
2822715	Feb, 1958	Raimondi	81/383.
2836089	May, 1958	Davies	72/410.
3029670	Apr, 1962	Over et al.	29/203.
3630068	Dec, 1971	Floyd	72/410.

Other Refs: 329,571

Sep, 1935	IT

Primary Examiner: Gilden, Leon
Assistant Examiner:
Attorney: Drucker; William Anthony