# US 9,434,088 B2 · Refill case and staple cartridge

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- Number: US 9,434,088 B2
- Document ID: US9434088B2
- Status: Granted
- Kind: B2
- Application number: 12/868,108
- Filed: 2010-08-25
- Published: 2011-04-21
- Granted: 2016-09-06
- Earliest claimed: 2009-10-19
- Assignees: Max Co., Ltd.
- Applicants: Toshio Shimizu; Futoshi Kameda
- Inventors: Toshio Shimizu; Futoshi Kameda
- Web page: https://patentgrep.com/patent/US9434088B2

## CPC

- B27F 7/38: Staple feeding devices
- B27F: DOVETAILED WORK; TENONS; SLOTTING MACHINES FOR WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES (hand-held nailing or stapling tools B25C; manufacture of cases, trunks or boxes from wood B27M3/34; connections for building structures in general, e.g. dowels for use in building constructions E04B1/38; jointing elements in general, e.g. dowels in general, F16B {; manufacture of long strips or planks by bonding together pieces of wood, e.g. by glueing, B27M3/0013})

## Abstract

A refill case (A) is provided with: an accommodating part (2) in which staple-sheets, each of which is formed by connecting straight staple members in a sheet shape, are stacked in an up/down direction and accommodated; a front wall (8a); a leading-out port (3) formed in the front wall (8a), and from which a lowermost staple-sheet of the stacked staple-sheets in the accommodating part is led out forward; and an eaves part (7) formed in an upper side of the leading-out port (3). The eaves part (7) includes a front end (7F) positioned in a front side of the front wall (8a) and a lower surface (7L) formed between the front end (7F) and the front wall (8a).

## Claims

### Claim 1

A refill case comprising:
an accommodating part in which staple-sheets, each of which is formed by connecting straight staple members in a planar sheet shape, are stacked in an up/down direction and accommodated;
a front wall extending in the up/down direction;
a leading-out port formed in the front wall, and from which a lowermost staple-sheet of the stacked staple-sheets in the accommodating part is led out forward; and
an eaves part formed in an upper side of the leading-out port,
wherein the eaves part includes a front end positioned in a front side of the front wall and a lower surface formed between the front end and the front wall such that the eaves part extends from the front wall.

### Claim 2 (depends on 1)

The refill case according to claim 1, further comprising:
an engaging part formed in a position in a lower side of the eaves part and in an upper side of the lead-out port, and protruding forward from the front wall,
wherein an upper end of the engaging part is apart from the lower surface of the eaves part in the up/down direction.

### Claim 3 (depends on 2)

The refill case according to claim 2, wherein the eaves part further includes an upper surface formed between the front end and the front wall in an opposite side of the lower surface in the up/down direction.

### Claim 4

A staple cartridge comprising:
a pressing part configured to insert in a space defined between an engaging part protruding from a front wall of a refill case and an eaves part protruding from the front wall of the refill case, and configured to engage with the engaging part protruding from the front wall of the refill case; and
a protrusion formed on the pressing part and configured to face a lower surface of the eaves part of the refill case;
wherein the protrusion is structured so that a gap between the lower surface of the eaves part and the protrusion is smaller than a thickness of a staple when the refill case is attached to the staple cartridge and the pressing part is inserted in the space defined between the engaging part and the eaves part.

### Claim 5 (depends on 4)

The staple cartridge according to claim 4, further comprising:
a staple guide part including a feeding path for guiding a staple-sheet led out from a leading-out port of the refill case, wherein a drive-out part in which a staple fed out from the feeding path is driven from a downside to an upside is formed at a front end of the staple guide part;
wherein an upper surface of the staple guide part and an upper surface of the pressing part are continuously formed.