JPS5930401Y2 - tape measure reel - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement in a tape measure reel that allows the tail end of a tape measure tape to be easily added to and removed from the winding drum;

Conventionally, this type of tape measure reel is made by dividing the winding drum (hereinafter referred to as a core ring) into two parts, and connecting the two halves with a pivot, as shown in Japanese Utility Model Publication No. 21067, for example. One part of the divided part of the tape has a protruding locking rod that locks the looped part at the tail end.
As seen in Publication No. 21638, a part of the periphery of the core ring is missing, and a rotating piece that can fit within one edge of the missing part is provided, and the tip of the rotating piece is rounded and the tail end of the tape is removed. There are some that have a protruding locking rod that locks the ring-shaped part.

According to these conventional means 1, the locking rod is moved around the outer periphery of the reel body by rotating the 10,000 divided portion around the pivot point by 1 rotation by an external force, or by rotating the rotating piece by 1 rotation by an external force. Since it is possible to project one more external force, it is easier to attach, increase and remove the ring-shaped part at the tail end of the tape to one locking rod.
It has the practical effect of being able to do this.

However, on the other hand, in these conventional means 1, the locking rod only protrudes one side from the core ring division part or rotating piece, so it is difficult to unwind the tape one full length. When surveying, etc., the ring at the tail end of the tape may accidentally come off the locking rod, and the tension of the tape is applied as a bending force to the locking rod. The locking rod b5 may cause problems such as bending or breaking from its base end.

In view of this point, the present invention includes attaching the tail end of the measuring tape,
To provide a tape measure reel which is extremely easy to use and can be easily added and removed, and the tail end of the tape measure tape does not accidentally come off.

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

FIG. 1 shows a tape measure reel as an embodiment of the present invention,
A core ring 2b5 around which a tape measure tape b5 is wound is rotatably supported in a reel main body 1 having a gripping part 1a on the upper part and a sharp part 1b piercing the ground etc. on the lower part 1.

This core ring 2 can be rotated by an operating lever 1 (not shown).

A portion 4 of the peripheral portion 3 of the core ring 2 is missing, and a peripheral portion 3a continuous with the missing portion 4 is cut from both sides to form a pair of four-way grooves 5,5.

The peripheral portion 3al of the recessed grooves 5, 5 on the terminal side is the pivot hole 6h.
1 shape (see Fig. 2) The missing part 4 and the pair of concave grooves 5.5 continuous therewith have seven rod rods bent in a U-shape when viewed from above. The two ends 7a, 7a are rotatably attached to the pivot hole 6.

Both ends of this rod 7? The length from a, 7a to the central U-shaped bent portion 7b is suitably long, and normally when the rod 7 is rotated by an external force I, the U-shaped bent portion 7b5S is shown in Figure 1. It is set to such an extent that it protrudes outward from the outer periphery of the reel main body 1.

In the illustrated example 1, the rod 7 is curved in an arc shape when viewed from the side top, and the U-shaped bent portion 7b is bent upward.

Next, the locking IL tool 10 that inserts and locks the tail end ring portion 9 of the tape measure tape 8 wound around the core ring peripheral portion 31 is as follows:
For example, it is bent into a G shape, and the G-shaped narrow portion 10a is fitted into the U-shaped bent portion 7bl of the rod 7 and locked therein.

The locking tool 10 and the rod 7 are made of, for example, strong spring steel.

In addition, the locking tool 10 is not limited to the G shape shown in the figure, but can also be used in the U shape of the rod.
It may be in the shape of a ring that can be attached to and detached from the letter-shaped bent portion 7b.

According to the tape measure reel 1 having the above configuration, if the rod 7 is moved outward by one turn, the U-shaped bent portion 7b M IJ -
Since it protrudes outward from the main body 1, it is easy to add and remove the 8 tail ends of the measuring tape.

- Just in case, the locking tool 1 of the ring part 9 at the tail end of the tape measure tape
0 to the U-shaped bent portion 7bI of the rod 7.
Because of this, it is very easy to miss something.

That is, if the locking tool 10b5 has a 1-gauge shape as shown in the figure,
In order to remove the locking tool 10 from the U-shaped bent portion 7b.
However, when the tape measure tape 8 is fully unwound, it is not subjected to such an artificial twisting action.

Therefore, it will not come off unexpectedly during use.

The locking tool 10 also has both ends 10b. 10b is supported by the U-shaped bent portion 7bl, the tension of the tape only acts on the locking device 10 as a tensile force.

Therefore, the fastener 10 will not bend or break due to the tension of the tape.

As explained above, in the tape measure reel according to the present invention, when a part of the circumferential part of the core ring 2 rotatably supported in the reel body 1 is missing, the core ring 2, which is continuous with the missing part 4, is missing. The ring circumferential portion 3a is cut from both sides to form recessed grooves 5, 5, and one rod 7 is bent into a U-shape when viewed from above so that it fits within the recessed grooves and the missing portion. Both ends 7a, 7 of the lever
A locking tool 10 is rotatably attached to the concave groove terminal end side circumferential portion 3at, and the ring-shaped portion 9 at the tail end of the tape measure tape 8 is inserted and locked therein.
For example, a narrow part 10a of the G-shaped fastener is formed.
Since the U-shaped bent portion 7bl of the rod 7 is inserted and locked, the following effects can be obtained.

(1) The tail end of the measuring tape can be easily attached and removed, and even when the measuring tape is fully unwound and used, the tail end of the tape b5 will not come off accidentally. There is no b5.

(2) The locking tool 10b3 has a G-shape, for example, and is supported by both ends 10b and 10bhs of the U-shaped bent portion 7bj of the rod 7, so that the tension of the tape during use is 1.
This prevents the locking tool 10h5 from bending/3S or breaking.

(3) Since both the bar rod 7 and the tether 10 can be formed by bending steel rods, they can be manufactured at low cost and have a simple structure.

(4) The rod 7, which is bent into a U-shape, is inserted into the recessed grooves 5°5 and the missing portion 41 so as to sandwich the peripheral portion 3a on which the recessed grooves 5, 5 are cut. , and both ends of the rod 7a? Since a is pivotally attached to the circumferential portion 3al, the lateral vibration h of the rod 7 is
5 will be prevented.

Therefore, when protruding the rod 7 outward or folding it down on the core ring side and storing it, the rotation should be smooth.
This can be done b'5.

[Brief explanation of drawings]

FIG. 1 is an overall view showing an embodiment of a tape measure reel according to the present invention, FIG. 2A is a plan view of the main part, and FIG. 2B is a front view of the main part. 1... Reel body, 2... Core ring, 3゜3a... Periphery, 4... Missing part, 5... Concave Irimo, 7...Borod,? a
, 7a... Both ends, 7b... U-shaped bent portion, 8... Measuring tape, 9... Ring-shaped portion, 10... Locking tool, 10a... Narrow part.

Claims (1)

[Scope of utility model registration request] A portion 4 of the circumferential portion of the core ring 2 rotatably supported on a single shaft within the reel body 1 is missing, and the circumferential portion 3a of the core ring continuous with the missing portion 4 is cut from both sides to form a recessed groove. 5
, 5, and 1 to fit within the recessed groove and the missing part.
This single bar rod 7 is bent into a U-shape when viewed from above and its both ends 7a
, 7a are rotatably attached to the concave groove end side peripheral part 3ar, and a locking tool 10 for inserting and locking the ring-shaped part 9 at the tail end of the tape measure tape 8 is attached to the U-shaped rod 7. A tape measure reel that is fitted and locked into the bent portion 7b.