JPS5930402Y2 - tape measure - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a tape measure in which the tail end of the tape measure tape can be easily attached to and removed from the winding drum.

Conventionally, as this type of tape measure, for example, the Utility Model 5221, 06
As seen in Publication No. 7, the winding drum (winding drum) is divided into a winding drum main body and a winding drum sub body, the winding drum main body and the winding drum sub body are pivotally connected, and the winding drum There are tape measure tapes with protruding locking rods on which the stop ring at the tail end of the tape measure is fixed, and hooks formed on part of the circumference of the winding drum, as seen in Japanese Utility Model Publication No. 47-21638. A rotating piece that can fit into the notch is pivotally attached to the edge of the cutting hook, and a locking rod protrudes from the tip of the rotating piece to which the annular attachment part of the tail end of the scale tape is locked. There are things etc.

However, in such conventional tape measure tapes (scale tapes), the retaining ring at the tail end or the retaining rod to which the annular attachment portion is engaged is located on one side from the winding drum subbody or rotating piece. Since the tape is only protruded, when the tape is fully pulled out and measured, the winding drum sub-body,
The rotary pieces rotate in a direction away from the main body of the winding drum and the winding drum, respectively, and the stop ring and annular attachment portion at the tail end of the tape have a drawback that they are more likely to come off than the locking rod or the locking rod.

In addition, the tensile force applied to the tape acts as a moment on the locking rod or locking rod, and there is a drawback that the locking rod or locking rod is more likely to bend or break from its base end.

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

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

In the drawing, reference numeral 1 denotes a support frame, which is made of synthetic resin, metal, etc., and has a grip portion 11° at the top and a sharp edge 12 at the bottom that penetrates into the ground or the like.

Further, the support frame 1 is not particularly limited to the shape shown in FIG.

Reference numeral 2 denotes a winding drum for winding a measuring tape 4, which will be described later, and is rotatably supported within the supporting frame 1.

The winding drum 2 is rotated by a handle 6 provided on the outside of the support frame 1.

Reference numeral 3 denotes a tape-like connecting piece, which is usually made of steel and used in the form of a thin plate.

One end of the connecting piece 3 is fixed to the winding drum 2, and the other end is folded back to form an annular locking part 31.

Further, the length of the connecting piece 3 is such that it projects slightly outward from the support frame 1, as shown in FIG.

Note that one end of the connecting piece 3 and the winding drum 2 are fixed by fitting an annular portion 32 formed at one end of the connecting piece 3 into a groove 21 formed in the winding drum 2. However, the fixing method is not particularly limited.

In addition, in the above-described fixing method, a bottle or the like is inserted into the annular portion 32 so that the annular portion 32 does not come out of the groove 21.

4 is a measuring tape made of metal, synthetic resin containing glass fiber, or the like.

A metal band such as a copper band is bent and attached to the tail end of the tape measure tape 4 to form an annular attachment part 41.

Reference numeral 5 denotes a locking ring, which is made of metal or the like and has an annular shape with a notched portion.

The shape of the locking ring 5 is not particularly limited, and may be rectangular, circular, polygonal, or the like.

Further, the dimensions of the notch portion of the locking ring 5 are approximately equal to or slightly larger than the thickness of the connecting piece 3.

Further, the locking ring 5 is inserted in advance into the attachment part 41 of the measuring tape 4, and the connecting piece 3 protrudes from the support frame 1 as shown in FIG.
It is designed to be removably inserted and locked into the locking portion 31 of the holder 31 as shown in FIG.

More specifically, the locking ring 5 is attached to the locking portion 31,
When removing the tape measure tape 4, that is, when attaching or removing the tail end of the tape measure tape 4 to or from the winding drum 2, the tail end of the tape measure tape 4 should be aligned approximately at right angles to the connecting piece 3;
The notch portion of the locking ring 5 is inserted into or removed from the locking portion 31 of the connecting piece 3.

As detailed above, in the tape measure of the present invention, a partially cut-out annular locking ring is inserted into the annular attachment portion at the tail end of the tape measure.
The locking ring is removably inserted and locked into the annular locking portion of the connecting piece connected to the winding drum, so if the measuring tape becomes dirty or damaged, the locking ring can be removed. It can be easily removed by detaching from the annular locking part of the connecting piece, and can be easily attached by inserting and locking the locking ring into the annular locking part of the connecting piece.

In addition, the partially cut-out annular locking ring is inserted through and locked into the annular locking portion of the connecting piece, so the structure is simpler than before, and the tape measure tape can be pulled out completely before use. Even if the measuring tape is used, the tail end of the measuring tape will not come off the winding drum, and the locking ring will not break due to the tensile force applied to the measuring tape, unlike conventional locking rods and locking rods.

[Brief explanation of drawings]

Fig. 1 is a front view showing an embodiment of the tape measure of the invention, Fig. 2 is a partially cutaway front view showing the main parts of the tape measure of the invention, and Fig. 3 is a partially cutaway view showing the main parts of the tape measure of the invention. The plan view and FIG. 4 are partially cutaway front views showing the winding state of the measuring tape of the present invention. 1... Support frame, 11... Gripping part, 12
...Sharp part, 2... Winding barrel, 21...
...Groove portion, 3...Connection piece, 31...Locking portion, 32...Annular portion, 4...Tape measure tape, 41... ... Mounting part, 5 ... Locking ring, 6 ... Handle.

Claims (1)

[Scope of utility model registration request] One end of a tape-shaped connecting piece 3 is fixed to a winding drum 2 rotatably supported within a support frame 1, and an annular locking part 31 is formed at the other end of the connecting piece 3. A partially cut-out annular locking ring 5 is inserted into an annular attachment portion 41 formed at the tail end of the connecting piece 3, and the locking ring 5 is detachably attached to the locking portion 31 of the connecting piece 3. A tape measure characterized in that it is inserted and locked.