Electric stapler
AssigneeMax Co., Ltd.
InventorToru Yoshie
Life of this patent
Estimating the term…
Abstract
An electric stapler is provided which comprises a driving plate (7) for driving out a staple from a driving position while reciprocating, a delivering mechanism for delivering a sheet-staple (11) to the driving position interrelatedly with a reciprocating motion of the driving plate, a working piece (24) which is rotated by a push given by a staple occupying the front row of the sheet-staple (11) when the front staple reaches the driving position, and a sensor (25) for detecting the rotation of the working piece (24). The driving plate (7) returns to its initial position in accordance with a detection signal output by the sensor (25).
Claims12
An electric stapler comprising:
- a driving plate for driving out a staple from a driving position while reciprocating;
- delivering means for delivering an array of staples to the driving position interrelatedly with a reciprocating motion of said driving plate;
- and
- detecting means for detecting that a staple occupying a front row of the array of the staples has reached the driving position;
- wherein said driving plate returns to an initial position in accordance with a detection signal output by said detecting means.
An electric stapler comprising:
- a driving plate for driving out a staple from a driving position while reciprocating;
- delivering means for delivering an array of staples to the driving position interrelatedly with a reciprocating motion of said driving plate;
- detecting means for detecting that a staple occupying a front row of the array of the staples has reached the driving position;
- and
- control means for, when said detecting means detects that the front staple has reached the driving position, returning said driving plate to an initial position so as to prevent a wasteful blank shot or a wasteful driving operation.
An electric stapler comprising:
- a driving plate for driving out a staple from a driving position while reciprocating;
- delivering means for delivering an array of staples to the driving position interrelatedly with a reciprocating motion of said driving plate;
- detecting means for detecting that a staple occupying a front row of the array of the staples has reached the driving position;
- and
- control means for, when said detecting means detects that the front staple has reached the driving position, returning said driving plate to an initial position;
- wherein said detecting means comprises a working piece and a sensor for detecting a position of a rear end of said working piece, said working piece being rotated on a shaft when the front staple reaches the driving position;
- a front end of said working piece is provided with a contact segment with which the front staple comes into contact;
- and a distance between said shaft and said front end of said working piece is set to be shorter than a distance between said shaft and said rear end of said working piece, so that a displacement of said working piece is accurately detected.
Dependencies are inferred from the claim text.