Sheet hole punching appratus
AssigneeSeiko Corp.
InventorKenji Baba
Life of this patent
Estimating the term…
Abstract
A sheet hole-punching device includes a plurality of punch members, a base frame for slidably supporting the punch members in a hole-punching direction and rotationally supporting the punch members, and a drive member having a plurality of cam portions. Each punch member has a leading end with a hole-punching blade. Each cam portion engages each punch member to move the punch member in the hole-punching direction. A plurality of cam devices is also formed in the sheet hole-punching device. Each cam device is disposed between the base frame and each punch member for converting a hole-punching direction movement of the punch member into a rotational movement so as to rotate the punch member while moving in the hole-punching direction.
Claims8
A sheet hole-punching device comprising:
- a plurality of punch members, each punch member having a leading end with a hole-punching blade;
- a base frame for slidably supporting the punch members in a hole-punching direction and rotationally supporting the punch members;
- a drive member having a plurality of cam portions, each of said cam portions engaging each of the punch members to move the punch members in the hole-punching direction;
- and
- a plurality of cam devices, each of the cam devices being disposed between the base frame and each of the punch members for converting a hole-punching direction movement of the punch member into a rotational movement so as to rotate the punch member while moving in the hole-punching direction.
Dependencies are inferred from the claim text.