Patent Application
20100071517
1. Field of the Invention
The present invention relates to a rotary tool, and more particularly to a rotary tool with an indicating element for indicating the standard thereof.
2. Description of Related Art
Rotary tools, such as a screw driver bit or a socket, are often used for tightening/loosing a bolt or a screw. However, bolts and screws have various standards for providing different torsion. As a result, rotary tools with different standards are necessary such that an indicating element is necessary for user to quickly choose a rotary tool with a suitable standard.
A conventional indicating element for rotary tool in accordance with the prior art is made of plastic and sleeved on the rotary tool. The conventional indicating elements have different colors for providing the differentiating function among the rotary tools.
Another conventional indicating element for rotary tool in accordance with the prior art has a ring structure and is made of metal, such as aluminum alloy or iron. These metal rings have different colors for providing the differentiating function among the rotary tools.
However, the plastic ring has a weak structure and is sleeved in the rotary tool such that the plastic ring may be easily broken after being used for a period of time.
In addition, the metal ring has a strong structure. However, the metal ring is hard to be sleeved on the rotary tool such that the metal ring is inconvenient for being used as an indicating element which is sleeved on the rotary tool.
The present invention has arisen to mitigate and/or obviate the disadvantages of the conventional indicating elements for rotary tools.
The main objective of the present invention is to provide an improved rotary tool with an indicating element that is easily mounted on the rotary tool.
To achieve the objective, the rotary tool in accordance with the present invention comprises a body having an operating end thereon and an annular groove defined in an outer periphery of the body. An indicating element is stably received in the annular groove for indicating a standard of the rotary tool. The indicating element is an electric element for easily mounted into the annular groove. The indicating element has a colored indicating mark formed thereon for indicating the standard of the rotary tool and the indicating element is a metal spring for lengthening the lifetime thereof.
Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.
Referring to the drawings and initially to
The indicating element (20) is an elastic element and has a ring structure. In the preferred embodiment of the present invention, the indicating element (20) is a metal spring such that the indicating element (20) can be easily mounted into the annular groove (13). In addition, the indicating element (20) is stably received in the annular groove (13) such that the indicating element (20) should not be detached from the shank (12) and the indicating element (20) is made of metal material such that the indicating element (20) is hard to be broken.
The indicating element (20) has an indicating mark (21) formed thereon. In the preferred embodiment of the present invention, the indicating mark (21) is color. The indicating marks (21) of different indicating elements (20) provide differentiating effect by using different colors.
With reference to
With reference to
With reference to
Although the invention has been explained in relation to its preferred embodiment, it is to be understood that many other possible modifications and variations can be made without departing from the spirit and scope of the invention as hereinafter claimed.
