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US 11,724,377 B2Granted
Bottom loading pliers stapler
AssigneeWorkTools, Inc.
InventorJoel S. Marks
Life of this patent
Estimating the term…
Abstract
A preferably pliers type stapler is disclosed with a staple loading structure that is both simplified and easy to operate. A lower handle and base are connected to the body through a pivoting and cam system. A single motion pulls the lower handle and base away from the body to expose a staple track location for loading staples at a bottom of the body. Preferably the same single motion releases the track to move outward from a rear of the body. In one embodiment a compact simplified structure using a preferably torsion spring provides a low cost reliable spring energized system.
Claims18
A stapler device, comprising:
- a housing body including a track chamber along a bottom thereof;
- a staple cycling input lever pivotably attached to the housing body;
- a staple track extending within the track chamber, the staple track including a closed operative position under the housing body, and a track-open position extending rearward from the housing body;
- a striker movable in the housing body between an upper position above the staple track and a lower position in front of the staple track;
- a base pivotally attached to the housing body near a rear of the housing body at a base-body pivot location;
- a lower handle pivotally attached to the housing body forward of the base-body pivot location;
- the base pivotally attached to the lower handle at a base-lower handle pivot near a central location of the base, the base and lower handle thereby having a shared rotatable linkage, and rotating the lower handle upon the housing body causes the base also to rotate about the housing body through the base-lower handle pivot;
- wherein the base includes three positions, being a pressed position, a rest position, and an open position, the pressed position having the base being proximate the body wherein the base and the body are pressed together under one of two conditions:
- (1) directly, or (2) through a spacing to accommodate papers to be stapled,
- wherein the base is spaced from the body in the rest position by a spacing greater than a spacing of any condition of the pressed position,
- wherein the base is pivotable from the rest position to be further from the body in the open position,
- wherein the shared rotatable linkage enables motion of the lower handle to cause motion of the base between the three positions,
- wherein the base extends along a bottom of the housing body and confines the track chamber from below in each of the pressed and rest positions of the base, and
- wherein the base open position includes the track chamber being exposed and open from a bottom of the stapler to enable operative access to the track chamber.
11 more elements
A fastening device, comprising:
- a housing body including a track chamber along a bottom thereof;
- a staple track extending within the track chamber, the staple track including a closed operative position under the housing body, and a track-open position extending rearward from the housing body;
- a striker movable vertically in the housing body between an upper position above the staple track and a lower position in front of the staple track;
- a handle movably attached to the housing body and extending rearward below the bottom of the housing body, the handle including a handle rest position;
- and
- a base including a base rest position spaced near from the bottom of the housing body;
- wherein the base is pivotable from the rest position to be further from the body in the open position,
- wherein the base confines the track chamber to be open from the bottom of the housing body,
- wherein the base includes a base open position in which the base is moved away from the housing body to expose the track chamber,
- wherein the base is linked to the handle such that moving the handle causes the base to move from the base rest position to the base open position,
- wherein the base is pivotally attached to the housing body near a rear of the housing body at a base-body hinge location,
- wherein the handle is pivotally attached to the housing body at a handle-body hinge location forward of the base-body hinge location, and
- wherein the base and handle are pivotally attached together at a base-handle pivot location.
10 more elements
A pliers stapler device, comprising:
- a housing body including a track chamber;
- a track movable within the track chamber between a track operative forward position and a track rear position;
- a striker movable at a front of the housing body between an upper position above the staple track and a lower position in front of the staple track;
- a base pivotally attached at a rear location of the housing body including a base pressed position proximate a bottom of the housing body, a base rest position spaced from the bottom of the housing body, and a base open position with the base moved downward from the rest position;
- wherein the track chamber is exposable to be open from a bottom of the stapler to enable loading of staples when the base is in the base open position and the track is in the track rear position,
- wherein the stapler device includes respective upper and lower pressing locations at a rear of the stapler device such that squeezing the pressing locations toward each other during an operating cycle of the stapler device causes the base to move from the rest position to the pressed position,
- wherein the base is pivotally attached to the housing body near the rear of the housing body at a base-body hinge location,
- wherein a lower handle is pivotally attached to the housing body at a handle-body hinge location forward of the base-body hinge location, and
- wherein the base and lower handle are pivotally attached together at a base-handle pivot location.
6 more elements
Dependencies are inferred from the claim text.