STAPLER

• US 20170203426A1
• Filed: 12/10/2015
• Published: 07/20/2017
• Est. Priority Date: 12/11/2014
• Status: Active Grant

• Current Assignee: Ningbo Deli Binging Eqipment Co., Ltd.
• Original Assignee: Ningbo Deli Binging Eqipment Co., Ltd.
• Inventors: YU, Jiehui, LIU, Rongjie
• Granted Patent: US 10,500,704 B2
• Time in Patent Office: Days
• CPC Class Codes: B25C 5/025 the plunger being manually operated
• CPC Class Codes: B25C 5/11 operated by manual or foot power
• CPC Class Codes: B25C 5/1617 employing a spring-loaded pusher

Abstract

A stapler comprises a base (1), a staple pin track (2), a top blade assembly (3), a hinge (4) and an upper cover (5). Tail ends of the staple pin track, the top blade assembly and the upper cover are all hingedly connected to a tail end of the base. A first guide part is disposed on a side wall of the upper cover, and one end of the hinge is slidably connected to the first guide part. The first guide part is set in a structure that when the upper cover is pressed, one end of the hinge can move to the tail end of the upper cover and press downwards. A second guide part is disposed on the side wall of the base, and the other end of the hinge is slidably connected to the second guide part. The second guide part is set in a structure that when the upper cover is pressed, the other end of the hinge can move to a front end of the base, and when the upper cover is opened, the other end of the hinge is separated from the base. A middle part of the hinge is hingedly connected to a middle of the top blade assembly, and the first guide part is close to the tail end of the upper cover. The present invention has a good labor-saving effect and makes it convenient to put in staple pins.

Claims

1. A stapler, comprising a support base, a staple pin track, a top blade assembly, a hinge, and an upper cover;

wherein the tail ends of the staple pin track, the top blade assembly and the upper cover are all hingedly connected to the tail end of the support base;

a first guide part is disposed on a side wall of the upper cover, one end of the hinge is slidably connected to the first guide part, the first guide part is set in a structure that when the upper cover is pressed, one end of the hinge can move to the tail end of the upper cover and press downward;

a second guide part is disposed on the side wall of the support base, the other end of the hinge is slidably connected to the second guide part, the second guide part is set in a structure that when the upper cover is pressed, the other end of the hinge can move to the front end of the support base, and when the upper cover is opened, the other end of the hinge is separated from the support base; and

a middle part of the hinge is hingedly connected to a middle of the top blade assembly.

2. The stapler according to claim 1, wherein the first guide part is close to the tail end of the upper cover.

3. The stapler according to claim 1, wherein the first guide part is a first slide slot, the first slide slot extends in the length direction of the upper cover, and one end of the hinge is slidably connected into the first slide slot through a pin shaft.

4. The stapler according to claim 1, wherein the first guide part is a first slide slot, and one end of the hinge is slidably connected into the first slide slot through a pin shaft.

5. The stapler according to claim 1, wherein the second guide part comprises a second slide slot and a third slide slot, the second slide slot extends in the horizontal direction, the third slide slot obliquely and downwardly extends from the upper end surface of the side wall of the support base and communicates with one end of the secnd slide slot which is closer to the tail end of the support base, the upper end of the third slide slot is open, the angle between the second slide slot and the third slide slot is obtuse, and the other end of the hinge is slidably connected into the second slide slot and the third slide slot through a hinge shaft.

6. The stapler according to claim 1, wherein the second guide part is a notch, the opening of which is directed to the backward direction.

7. The stapler according to claim 1, wherein a hinge-positioning mechanism is arranged between the hinge and the top blade assembly, so that the other end of the hinge can be accurately aimed at the opening of the second guide part, and thereby the front end of the hinge can be guided into the second guide part.

8. The stapler according to claim 7, wherein the hinge-positioning mechanism is as follows:

a front hinge-positioning portion is provided in the middle part of an top blade, a rear hinge-positioning portion is provided in the tail of the hinge, and the ends of a tension spring are respectively fixed between the front hinge-positioning portion and the rear hinge-positioning portion.

9. The stapler according to claim 1, wherein a staple-mounting mechanism comprises a top blade holder, an external staple pin track, an internal staple pin track, a staple pusher, a staple pusher spring, and a long pin;

the long pin is arranged in the external staple pin track, and is fixed at both ends of the external staple pin track;

the staple pusher sleeves the long pin, and is arranged in the external staple pin track;

the rear end of the staple pusher is connected to the front end of the staple pusher spring, the rear end of the staple pusher spring is connected to the rear end of the staple pin track, staples are mounted between the front end of the staple pusher and the front end of the external staple pin track;

the internal staple pin track is connected to the staple pusher through a connecting part;

a positioning mechanism is arranged between the tail of the top blade holder and the tail of the support base, and when the top blade holder leaves from the staple pin track to mount the staples until the maximum extension position, the top blade holder and the support base are locked by the positioning mechanism.

10. The stapler according to claim 9, wherein the positioning mechanism is as follows:

a protruding or hole is provided in the tail of the support base, and a corresponding hole or protruding is provided in the tail of the top blade holder.

11. The stapler according to claim 1, wherein the tail ends of the staple pin track, the top blade assembly and the upper cover are all hingedly connected to the support base through the same pin shaft.