Staple cartridge and stapler
US-10870215-B2 · Dec 22, 2020 · US
Stapler
US12502802B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12502802-B2 |
| Application number | US-202318396420-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 26, 2023 |
| Priority date | Dec 26, 2022 |
| Publication date | Dec 23, 2025 |
| Grant date | Dec 23, 2025 |
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- Title
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- Abstract
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- First independent claim
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Abstract
Official abstract text for this publication.
There is provided a stapler including: a pair of clinchers that include a shaft portion, a staple abutting portion located closer to a distal end side than the shaft portion, and a spring abutting portion located closer to a proximal end side than the shaft portion, the pair of clinchers being rotatable about the shaft portion, and the staple abutting portion and the spring abutting portion being rotated in opposite directions from each other by rotation; a partition plate interposed between the pair of clinchers and partitioning one clincher and the other clincher from each other; and an elastic member having one end side fixed to the partition plate and the other end side abuttable against the spring abutting portion.
First claim
Opening claim text (preview).
What is claimed is: 1 . A stapler comprising: a pair of clinchers that include a shaft portion, a staple abutting portion located closer to a distal end side than the shaft portion, and a spring abutting portion located closer to a proximal end side than the shaft portion, the pair of clinchers being rotatable about the shaft portion, and the staple abutting portion and the spring abutting portion being rotated in opposite directions from each other by rotation; a partition plate interposed between the pair of clinchers and partitioning one clincher and the other clincher from each other; and an elastic member having one end side fixed to the partition plate and the other end side abuttable against the spring abutting portion, wherein the elastic member is a plate spring, and abuts against the spring abutting portion when the clincher rotates about the shaft portion by a predetermined angle or more. 2 . The stapler according to claim 1 , wherein the elastic member, the spring abutting portion, the shaft portion, and the staple abutting portion are arranged along a longitudinal direction of the partition plate in series. 3 . The stapler according to claim 2 , wherein the partition plate includes a pickup portion that guides a leg portion of the staple to the staple abutting portion, and the pickup portion is located in front of the staple abutting portion when the the pair of clinchers are at the position rotated by the predetermined angle. 4 . The stapler according to claim 3 , wherein the plate spring is formed integrally with the partition plate. 5 . The stapler according to claim 2 , further comprising: a case surrounding an outer side of the pair of clinchers, wherein the case includes a pickup portion that guides a leg portion of the staple to the staple abutting portion, and the pickup portion is located in front of the staple abutting portion of the pair of clinchers when the pair of clinchers are at the position rotated by the predetermined angle. 6 . The stapler according to claim 1 , wherein the spring abutting portion overlaps with a part of the elastic member in an upper-lower direction, and is located side by side with the elastic member. 7 . The stapler according to claim 1 , wherein the elastic member is fixed with side surfaces of both side of the partition plate in a longitudinal direction of the partition plate. 8 . The stapler according to claim 1 , wherein the side surfaces of the partition plate are erected in a direction in which the partition plate are overlapped between the pair of clinchers. 9 . The stapler according to claim 8 , wherein the spring abutting portion has a shape that protrudes towards the side surfaces of the partition plate.
Assignees
Inventors
Classifications
operated by electric power · CPC title
- B27F7/19Primary
with provision for bending the ends of the staples on to the work · CPC title
power-operated · CPC title
Clinching means therefor · CPC title
- B25C5/0207Primary
Particular clinching mechanisms (B25C5/0271 takes precedence) · CPC title
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Frequently asked questions
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- What does patent US12502802B2 cover?
- There is provided a stapler including: a pair of clinchers that include a shaft portion, a staple abutting portion located closer to a distal end side than the shaft portion, and a spring abutting portion located closer to a proximal end side than the shaft portion, the pair of clinchers being rotatable about the shaft portion, and the staple abutting portion and the spring abutting portion bei…
- Who is the assignee on this patent?
- Max Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B27F7/19. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Dec 23 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).