Drawing pin having functionality of drawing back automatically

a technology of drawing back and automatic drawing, applied in the field of drawing pins, can solve the problems of affecting the safety of users, touching the skin of the user's hand with the pin, and incurring dangers
US20100000057A1Inactive Publication Date: 2010-01-07NAT TAIWAN UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
NAT TAIWAN UNIV OF SCI & TECH
Publication Date
2010-01-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

A drawing pin having functionality of drawing back automatically is provided, which includes a containing portion and a pin portion. The pin portion is disposed in the containing portion when the pin portion is at a first location, and an appropriate part of the pin portion is exposed outside the containing portion when the pin portion is at a second location. The containing portion provides a resilient force that enables the pin portion to draw back from the second location to the first location automatically when the pin portion moves from the first location to the second location.
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Description

CROSS-REFERENCE TO RELATED APPLICATION

[0001] This application claims the priority benefit of Taiwan application serial no. 97211942, filed on Jul. 4, 2008. The entirety of the above-mentioned patent application is hereby incorporated by reference herein and made a part of specification.BACKGROUND OF THE INVENTION

[0002] 1. Field of the Invention

[0003] The present invention relates to a drawing pin, in particular, to a drawing pin having functionality of drawing back automatically.

[0004] 2. Description of Related Art

[0005] In the past, users would take great care whenever taking drawing pins to use, because the drawing pins were scattered in a box disorderly, and users can only grasp the plastic portions of the drawing pins so as to avoid to be pricked by them. The feelings that the skin touched by the pins when users take out drawing pins to be used from the box or take down them from a billboard and put them on the palm are very unpleasant. When the drawing pins drop on the ground, they ...

Claims

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