Geometrical instruments – Distance measuring – By flexible tape
Utility Patent
1998-11-09
2001-01-02
Fulton, Christopher W. (Department: 2859)
Geometrical instruments
Distance measuring
By flexible tape
C033S755000
Utility Patent
active
06167635
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a pushing suspending device of a measuring tape, and especially to a suspending device which may suspend the action effectively.
2. Description of the Prior Art
A prior art rule shown in
FIG. 6
only has a locking switch
101
above the housing
100
. Generally, it is necessary for the user to resist against the lower surface of the rule
200
so to lock the rule
200
with the locking switch
101
. But this design has the following disadvantages:
1. Since the suspending action is performed by fingers pushing against the lower end of the rule, the rule surface is pressed so that the measurement cannot be performed accurately.
2. The edge of the rule may easily harm the fingers to cause a dangerous accident.
3. To press the rim of rule will destroy the rule.
In order to improve the aforementioned defects, the inventor of the present invention has made a great effort and has made many novel designs.
SUMMARY OF THE INVENTION
Accordingly, the object of the present invention is to provide a pushing suspending device of a measuring tape which is actuated by a contact pressing piece and a suspending switch. Thus, the rule may conveniently and effectively be controlled.
Another object of the present invention is that in the pushing suspending device of a measuring tape, top resisting portions are installed on two sides of the suspending switch. When the rule has extended to a predetermined distance, the suspending switch is pressed downwards so that the resisting portions will resist against the cover rim of the protecting disk covering two sides of the rule. Therefore, the curling of the rule is further controlled.
A further object of the present invention is to provide a pushing suspending device of a measuring tape in which multiple banks of grooves are installed on the suspending switch so that when the contacting pressing piece slides downwards to the contacting block to press the rule, it may further be embedded into the banks of grooves.
The present invention will be better understood and its numerous objects and advantages will become apparent to those skilled in the art by referencing to the following drawings in which:
REFERENCES:
patent: 5395069 (1995-03-01), Chen
patent: 5657551 (1997-08-01), Lin
patent: 6026585 (2000-02-01), Li
patent: 6032380 (2000-03-01), Li
Dougherty & Troxell
Fulton Christopher W.
Index Measuring Tape Co., Ltd.
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