Structure of the stapler

Details Structure of the stapler Structure of the stapler

1999-09-07

2001-04-03

Vo, Peter (Department: 3721)

Elongated-member-driving apparatus

With means to move or guide member into driving position

Including supply magazine for constantly urged members

C227S119000, C227S120000

Reexamination Certificate

active

06209772

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an improved structure of the stapler and, in particular, to an improved structure of the stapler with the functions of protecting staples, automatically dismissing staples, indicating the amount of staples and guiding staples.
2. Description of the Prior Art
Since the successful invention of the stapler, it has become an indispensable tool for paper binding or packaging. Nonetheless, most of the conventional staplers have the following drawbacks:
1. The staples are easy to be tilted when piercing into paper. This prevents the staples from properly clasping the paper, which results in weaker binding and worse appearance.
2. The user could not know that the staples are running out without opening the stapler. And the pressing cover has to be opened when reloading staples.
3. When binding a thick pile of paper, the legs of the staple are often not long enough to clasping the paper.
In observation of the many drawbacks of the staplers of prior art, which is not a perfect design and needs modification, the inventor conquered the above mentioned disadvantages and finally presented this improved structure of the stapler after many years of research and hardworking.
SUMMARY OF THE INVENTION
The present invention provides an improved structure of the stapler which comprises a pressing cover with a pressing plate and a protection plate under the front end, a casket deck containing a staple casket, and a base with a staple board in the front; wherein the staple casket contains a pushing block, that pushes the staples in the casket by a spring behind it, so that the staples can bind the paper via the pressing of the pressing plate and, with the guidance of the protection plate, pierce through the paper without tilt.
Furthermore, the invention provides an improved structure of the stapler which is equipped with a hook at the bottom of the casket deck and an opening at the front bottom of the staple casket. The staple casket is connected to the hook via the opening, and the hook will be disconnected from the opening by the pressing of the pushing block when staples run out so that the staple casket will, pushed by the spring behind it, automatically slide out of the stapler for reloading.
Yet, the invention provides an improved structure of the stapler which is equipped with a staple board of a proper height at the front end of the base that has a concave groove and a spring plate above the staple board so that a good guidance of the staple can be obtained when binding a pile of paper.
Moreover, the invention provides an improved structure of the stapler which contains a clasping part for the attachment of an indicator indicating the amount of the staples in the stapler.
The improved structure of the stapler with the above mentioned merits comprises a pressing cover with a pressing plate and a protection plate under the front end, a casket deck containing a staple casket, and a base with a staple board in the front; wherein the staple casket contains a pushing block, that pushes the staples in the casket by a spring behind it, so that the staples can bind the paper via the pressing of the pressing plate and, with the guidance of the protection plate, pierce through the paper without tilt. Furthermore, the stapler contains a hook at the bottom of the casket deck and an opening at the front bottom of the staple casket, wherein the staple casket is connected to the hook via the opening, and the hook will be disconnected from the opening by the pressing of the pushing block when staples run out so that the staple casket will, pushed by the spring behind it, automatically slide out of the stapler for reloading.


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