JPS5844322Y2 - Tape measure with excellent uprightness - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a measuring tape with excellent uprightness.

In conventional tape measures, the cross section of the tape is simply curved in an arc to give it uprightness, and the tape ejection opening of the tape measure case is not restricted in any way, so after long-term use, The radius of curvature of the cross section of the tape wound around the drum in the tape measure case becomes larger than the initial radius of curvature due to stress relaxation, and the tape is pulled out from the tape outlet in an almost flat state, and the tape stands upright. However, there were disadvantages in that the tape measure tape tended to bend in the middle.

Further, especially when the measuring tape is made of synthetic resin or fiber-reinforced synthetic resin, the above-mentioned tendency is strong and the uprightness is poor.

In view of these conventional drawbacks, the inventor of the present invention has made extensive efforts to provide a measuring tape that eliminates the above-mentioned drawbacks and has excellent uprightness.

An embodiment of the present invention will be described below with reference to the drawings.

In the drawing, 1 is a tape measure case, 11 is a tape outlet,
12 is a pressing piece, 2 is a measuring tape, and 21 is a hanging piece.

The tape measure case 1 is a suitably shaped box made of synthetic resin or the like. A tape measure barrel (not shown) is rotatably mounted inside the tape measure case 1, and a tape measure (described later) is attached to the outer periphery of the tape measure case 1. tape 2
As the tape measure tape 2 is wound, the leading end of the tape measure tape 2 protrudes from a tape outlet 11 provided in the tape measure case 1.

Further, the width W of the tape outlet 11 is the width W of the measuring tape 2.
In addition, the upper edge of the tape outlet 11 has a pressing piece 12 hanging down from the center thereof, and the tape outlet 11 has a generally concave shape as a whole.

That is, when the tape measure tape 2 passes through the tape outlet 11, both side edges of the tape measure tape 20 are pressed inward by both side edges of the tape outlet 110, and the center portion of the tape measure tape 2 is pressed downward by the suppressing piece 12. The radius of curvature of the cross section of the measuring tape 2 is forcibly reduced.

The measuring tape 2 is mainly made of synthetic resin or fiber-reinforced synthetic resin, has a scale displayed on its surface, and has a cross section curved in an arc shape as shown in FIG.

Further, an L-shaped hooking piece 21 is attached to the tip of the measuring tape 2.

Further, the tape measure tape 2 may be wound around the winding barrel by a winding spring (not shown) attached to the winding barrel inside the tape measure case 1, or may be arranged so as to protrude outside the tape measure case 1. The tape measure tape 2 may be wound onto the drum by rotating the drum by turning a handle (not shown).

Note that the tape measure tape 2 can be suitably used for electrical work if it is made of a material with electrical insulation properties such as the above-mentioned synthetic resin or fiber-reinforced synthetic resin, but even if it is made of metal etc. I can't help it.

As detailed above, in the tape measure of the present invention, the cross section of the measuring tape is curved in an arc shape, the tape outlet is made slightly narrower than the width of the measuring tape, and the upper edge of the tape outlet is pressed from the center. Since the piece is hanging down, even if the radius of curvature of the cross section of the tape measure tape becomes larger than the initial radius of curvature due to stress relaxation, the radius of curvature of the cross section of the tape measure tape is forced to change as it passes through the tape outlet. can be restored to its initial radius of curvature, and the uprightness of the measuring tape can be maintained for a long period of time.

Further, there is no possibility that the measuring tape is bent near the tape outlet as in the conventional case.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the tape measure of the present invention, FIG. 2 is a front view showing an embodiment of the tape outlet, and FIG. 3 is a sectional view of the tape measure. 1... Tape measure case, 11... Tape outlet, 12... Pressing piece, 2... Tape measure tape, 21... Hanging Piece.

Claims (1)

[Scope of utility model registration request] In a tape measure in which a tape measure tape is wound around the outer periphery of a tape barrel rotatably mounted in a tape measure case, and the tape measure tape is freely drawn out from a tape outlet of the tape measure case, the cross section of the tape measure tape has an arc shape. The tape measure tape has excellent uprightness, which is curved, the tape outlet is made slightly narrower than the width of the measuring tape, and the upper edge of the tape outlet has a suppressing piece hanging from the center. Tape measure.