Cartridge and stapler

Patent metadata

Field	Value
Publication number	US-12496743-B2
Application number	US-202318396381-A
Country	US
Kind code	B2
Filing date	Dec 26, 2023
Priority date	Dec 26, 2022
Publication date	Dec 16, 2025
Grant date	Dec 16, 2025

Abstract

There is provided a cartridge to be mounted on a stapler, and a stapler. The cartridge includes: a cartridge main body configured to accommodate a staple; a lever attached to the cartridge main body to be displaceable with respect to the cartridge main body; and a fixing portion for fixing the cartridge to the stapler when the cartridge is loaded on the stapler. The fixing portion is located at a first position in a fixed state where the cartridge is fixed to the stapler, and is located at a second position in a released state where the fixed state is released. The lever has a moving portion that moves the fixing portion to the second position when the lever is displaced in a first direction and a second direction with respect to the cartridge main body.

First claim

What is claimed is:

1 . A cartridge to be mounted on a stapler, comprising:
a cartridge main body configured to accommodate a staple; a lever attached to the cartridge main body to be displaceable with respect to the cartridge main body; and a fixing portion for fixing the cartridge to the stapler when the cartridge is loaded on the stapler, wherein
the fixing portion is located at a first position in a fixed state where the cartridge is fixed to the stapler, and is located at a second position in a released state where the fixed state is released,
the lever has a moving portion that moves the fixing portion to the second position when the lever is displaced in a first direction or a second direction with respect to the cartridge main body,
the fixing portion has a fixing shaft that protrudes outward from the moving portion,
the fixing shaft abuts against the moving portion until the fixing shaft is displaced from the first position to the second position,
the moving portion includes a through hole that has an inclined surface inclined obliquely in an upper-lower direction and a corner portion that supports the fixing shaft at the first position, and
the fixing shaft is inserted in the through hole.

2 . The cartridge according to claim 1 , wherein
the first direction is downward with respect to the cartridge main body, and the second direction is upward with respect to the cartridge main body.

3 . The cartridge according to claim 2 , wherein
the moving portion moves the fixing portion to the second position when the lever is displaced in a third direction with respect to the cartridge main body.

4 . The cartridge according to claim 3 , wherein
a loading direction in which the cartridge is loaded into the stapler is a direction intersecting the first direction, and the third direction is a direction opposite to the loading direction.

5 . The cartridge according to claim 4 , wherein
the first position is located in the first direction with respect to the second position, and the moving portion moves the fixing portion in the second direction when the lever is displaced in the first direction, the second direction, and the third direction with respect to the stapler.

6 . The cartridge according to claim 4 , wherein
the lever includes a lever main body having a proximal end portion, a distal end portion, the moving portion between the proximal end portion and the distal end portion, and a knob protruding from the proximal end portion in the third direction, the lever main body has a first fulcrum portion closer to the proximal end portion side than the moving portion, the knob is rotatable in the first direction around the first fulcrum portion as a fulcrum, and the moving portion moves in the second direction as the knob rotates in the first direction.

7 . The cartridge according to claim 4 , wherein
the lever includes a lever main body having a proximal end portion, a distal end portion, the moving portion between the proximal end portion and the distal end portion, and a knob protruding from the proximal end portion in the third direction, the lever main body has a second fulcrum portion closer to the distal end portion side than the moving portion, the knob is rotatable in the second direction around the second fulcrum portion as a fulcrum, and the moving portion moves in the second direction as the knob rotates in the second direction.

8 . The cartridge according to claim 4 , wherein
the fixing portion is located closer to the second direction than the staple accommodated in the cartridge main body.

9 . The cartridge according to claim 3 , wherein
the lever includes a lever main body having a proximal end portion, a distal end portion, the moving portion between the proximal end portion and the distal end portion, and a knob protruding from the proximal end portion in the third direction, the moving portion has an inclined surface inclined in the second direction from the proximal end portion toward the distal end portion, and the fixing portion abuts against the inclined surface and moves in the second direction along the inclined surface when the lever is displaced in the third direction.

10 . The cartridge according to claim 3 , further comprising
an elastic member configured to urge the fixing portion to the first position, wherein the elastic member presses the staple accommodated in the cartridge main body in the first direction.

11 . A stapler comprising:
a main body including a loading portion in which a cartridge is loaded and a fixing portion that fixes the cartridge loaded in the loading portion into the loading portion; and a lever attached to the main body to be displaceable with respect to the main body, wherein
the fixing portion has a protruding portion that is located at a first position in a fixed state where the cartridge is fixed to the loading portion and is located at a second position in a released state where the fixed state of the cartridge is released,
the lever has a moving portion that moves the protruding portion from the first position to the second position when the lever is displaced in a first direction or a second direction different from the first direction with respect to the main body,
the fixing portion has a fixing shaft that protrudes outward from the moving portion,
the fixing shaft abuts against the moving portion until the fixing shaft is displaced from the first position to the second position,
the moving portion includes a through hole that has an inclined surface inclined obliquely in an upper-lower direction and a corner portion that supports the fixing shaft at the first position, and
the fixing shaft is inserted in the through hole.

Assignees

• Max Co Ltd

Inventors

• Shindo Takushi
• Kameda Futoshi

Classifications

• B42B5/00

  Permanently attaching together sheets, quires or signatures otherwise than by stitching (by deformation thereof B31F; by adhesive peculiar to bookbinding B42C9/00) · CPC title

• B25C5/1686

  using pre-loaded cassettes · CPC title

• B27F7/38 Primary

  Staple feeding devices · CPC title

• B25C5/1603 Primary

  for tools with provision for bending the ends of the staples or to the work · CPC title

• B42B4/00 Primary

  Permanently attaching together sheets, quires or signatures by discontinuous stitching with filamentary material, e.g. wire {(by stapling B25C5/00; staples F16B15/00)} · CPC title