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US 5,758,813 AGranted
Driver-and-clincher operating mechanism for stapler
AssigneeMax Co., Ltd.
InventorsToshiaki Kikuchi, Takahisa Misawa
Life of this patent
Estimating the term…
Abstract
A stapler includes a driver-and-clincher mechanism for operating a driver and a clincher such that the driver-and-clincher operating mechanism operates the driver until the driver nearly reaches a bottom dead point thereof during a first half downward movement of an operating handle and then the driver-and-clincher mechanism operates the clincher during a latter half movement of the operating handle.
Claims8
A stapler for piercing staples to a pile of sheets and bending legs of the staples, comprising:
- a movable clincher for bending the legs of staples along a bottom surface of the pile of sheets;
- a base member accommodating said movable clincher;
- a clincher operating mechanism for operating said movable clincher;
- a magazine in which the staples are loaded;
- a driver holder having a first guide groove;
- a driver attached to said driver holder, for hammering the forefront staple;
- a frame member having a second guide groove, and connecting to said base member swingable with respect to said base member wherein said frame member accommodates said magazine and said frame member supports said driver holder vertically movable;
- an operating handle having a third guide groove, and supported by said base member to be vertically movable;
- and
- an operating pin is engaged with said first, second and third guide grooves, for regulating a movement of said driver while interlocking with a movement of said operating handle to temporarily stop said driver immediately before said driver reaches a bottom dead point thereof.
7 more elements
A stapler for piercing staples to a pile of sheets and bending legs of the staples, comprising:
- a movable clincher for bending the legs of staples along a bottom surface of the pile of sheets;
- a base member accommodating said movable clincher;
- a clincher operating mechanism for operating said movable clincher;
- a magazine in which the staples are loaded;
- a driver holder;
- a driver attached to said driver holder, for hammering the forefront staple;
- a frame member connecting to said base member swingable with respect to said base member wherein said frame member accommodates said magazine and said frame member supports said driver holder vertically movable;
- an operating handle supported by said base member to be vertically movable;
- and
- a driver-and-clincher mechanism for operating said driver and said clincher such that said driver-and-clincher operating mechanism operates said driver until said driver nearly reaches a bottom dead point thereof during a first half downward movement of said operating handle and then said driver-and-clincher mechanism operates said clincher during a latter half movement of said operating handle.
7 more elements
Dependencies are inferred from the claim text.