Patent Application
20090090015
1. Field of the Invention
The present invention relates to a construction for loosing prevention and position fixing of rule tape of tape ruler, especially to a construction for fixing the head portion of the rule tape of tape ruler, so as to enable user to measure a distance of object by himself.
2. Description of Prior Art
As shown in
However, when said conventional tape ruler is in using for measuring a distance of object, because the free end of rule tape 13 can not be fixed at a position, the rule tape 13 has to be pulled out by one people, while another people holds the main housing 11 and hooks the scale indicating the object to obtain the information of measurement. Then one people is difficult to measure an object and as a result, the conventional tape ruler is not convenient for people to measure an object.
Furthermore, the free end of rule tape of said conventional manual winding tape ruler is not fixed at one location and the end of rule tape can swing freely, the weight of buckle attached onto the rule tape always causes the loosing of rule tape, this also causes inconvenience to people.
In view of the disadvantages happened in conventional tape ruler, it is then an object of present invention to provide a construction for loosing prevention and position fixing of rule tape of tape ruler, such that the disadvantages happened in conventional tape ruler can be dissolved, people then can easily fix the free end of rule tape, and the measurement can be achieved by one people only.
According to the tape ruler of present invention, when the tape ruler is not in use, the buckle ring attached to the free end of rule tape can be located at a fix position, then a pulling force generated due to the weight of buckle ring attached onto the end of rule tape can be prevented, the rule tape of tape ruler then shall not be loosen when the tape ruler is not in use. This is another object of present invention.
According to the object mentioned above, the construction provided in the present invention then comprises a main housing having a handle formed at its upper end, and a wound rule tape is installed in the main housing. On one side of the main housing, there is a winding element having a shaft formed at its inner end located inside the main housing. Said rule tape is wound onto said shaft and there is a rotation portion to be mounted onto the outer end of said winding element, such that the rule tape can be wound into the main housing by rotating said winding element; the free end of said rule tape is attached with a buckle ring, such that the rule tape can be pulled out of tape ruler and the free end of rule tape is prevented from wound into the main housing; there is installed with a magnetic element adjacent to said buckle, so as to absorb said buckle ring be located at a fix position and prevent the generation of pulling force due to the weight of buckle ring, the rule tape then would not be loosen; in addition, there is a fixing element installed in the main housing, in measuring the distance between two objects, the fixing element is taken apart off main housing in advance, and then the fixing element is stickled into a position to be measured, afterwards, the buckle ring at the free end of rule tape is mounted onto the fixing element to fix the end of rule tape at a designated position. Thus the measurement can be achieved by only one people and it is not necessary to hold the end of rule tape by another one when a measurement is performed.
A more complete understanding of these and other features and advantages of the present invention will become apparent from a careful consideration of the following detailed description of preferred embodiments illustrated in the accompanying drawings.
According to the construction for loosing prevention and position fixing of rule tape of tape ruler of present invention, as shown in
By the construction shown above, when the tape ruler of present invention is in use for measuring the distance between two objects, the fixing element 41 is firstly taken apart from the main housing 30, and then it is stickled firmly at the position of one object. After the buckle ring 35 firmly attached at the end of rule tape 32 is mounted onto the fixing element 41, by holding the tape ruler and walking to the position of another object, the rule tape 32 then would be pulled out of the main housing 30 for measuring the distance between two objects. The measurement by only one people is then achieved.
Referring to
Referring to
According to the construct ion for loosing prevention and position fixing of rule tape of tape ruler of present invention, when the tape ruler is not in use, the buckle ring attached to the free end of rule tape can be located at a fix position, then a pulling force generated due to the weight of buckle ring attached onto the end of rule tape can be prevented, the rule tape of tape ruler then shall not be loosen when the tape ruler is not in use. In addition, by taking apart the fixing element held inside the main housing, sticking the fixing element at a position corresponding to an object, attaching said buckle ring onto said fixing element, pulling the rule tape out of the main housing to another object, then the distance between two objects can be measured by only one people.
Since the construction of present invention is not disclosed and for sale previously, it is then believed the present invention is an invention of novelty.
Although the present invention has been described with a certain degree of particularity, the present disclosure has been made by way of example and changes in details of structure may be made without departing from the spirit thereof.
