JPS646842Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> This invention relates to the improvement of jumping ropes.
For more details, users can easily check their height,
This relates to a jump rope that allows you to adjust the length of the rope according to your preference.

<Prior Art> Conventionally, as a method for adjusting the length of a rope, for example, when a plastic rope is cut to a desired length, the cut portion is thermally melted to form an enlarged portion, and this is used as a hanging portion. something that locks inside the grip,
Alternatively, a metal cap is caulked to the cut part to form a locking part, or an even simpler method is to make a knot at a desired position on the rope and use this as a locking part to lock it in the grip part. There is.

<Problems to be solved by the invention> However, in all of these cases, in order to change the length of the rope once set, the rope must be pulled out from the rear end of the grip part to form a latching part. The drawback was that it was extremely time-consuming. In particular, double jumps, back rotation jumps, and cross jumps that require advanced techniques require delicate adjustments to the length of the rope in order to adjust the speed of rotation. Therefore, the conventional products are not yet satisfactory in changing the length of the rope instantly depending on the jumping style.

<Means for Solving the Problem> Therefore, the present invention is an attempt to overcome the above-mentioned defects of the conventional product. Therefore, we adopted a means that can substantially adjust the length of the rope.

<Example> The present invention will be described below according to an example shown in the drawings. FIG. 1 shows a plan view of the jump rope of the present invention, in which a rope B having a hooking part 1 at the tip is inserted into a grip part A which is at least partially hollow. In the jump rope supported by the cap part C, a long guide groove 2 is formed in a desired part of the grip part A along the longitudinal direction thereof.
A plurality of locking recesses 3 are formed at appropriate intervals, and on the other hand, as shown in FIG. Rope support ring E protruding from the base plate 6
is inserted into the cylindrical shape of the grip part A, and the rope support ring E is slidably fitted along the guide groove 2 of the grip part A, thereby making the rope B extendable and retractable. Then it's a rope. It is.

At this time, the rope support ring E is formed with two vertical notches 7, as shown in FIG. , the upper end of the substrate 6 forms a guide protrusion 4 and a locking protrusion 5. In order to give the substrate 6 some restorability, the desired purpose can also be achieved by cutting out appropriate notches 8 in the rope support ring E to form a narrow substrate 6 as shown in FIG. . Therefore, as the member used for the rope support ring E, it is desirable to use a material that is highly elastic and easy to process, such as plastic.
Next, the guide protrusion 4 and the locking convex part 5 which are projected from the guide groove 2 and the locking concave part 3 are arranged so that the locking convex part 5 is at least the guide protrusion in order to enable the rope support part to slide within the grip part A. Formed lower than 4,
The locking protrusion 5 is buried in the grip part A by the pressure of the guide protrusion 4, and the guide protrusion 4 is inserted into the guide groove 2.
It has a structure that allows it to slide along.

Furthermore, the rope support ring E supports the rope B at its rear end and moves up and down following the movement of the rope support ring E, so that the length of the rope can be substantially adjusted.

<Effects of the invention> Therefore, according to the invention, the length of the rope can be freely adjusted by a simple operation of pressing and moving the guide protrusion 4 protruding from the grip portion A, without having to cut and adjust the rope as in conventional products. Moreover, since it can be adjusted with a single touch, it can be adjusted instantly to all kinds of jumping ropes, and it is also a device with extremely high practical value, as it can be used for both children and adults.

[Brief explanation of drawings]

The drawings show a typical embodiment of the jump rope of the present invention, and FIG. 1 is a plan view thereof, FIG. 2 is a schematic cross-sectional view taken along the line X-X in FIG. 1, and FIGS. 4 is a plan view of the rope support ring; FIG. 4 is a longitudinal cross-sectional view taken along the Z-Z line; FIG. 4 is a cross-sectional view taken along the Y-Y line; and FIG. 4 is a plan view of the modified rope support ring. It is. Explanation of symbols, A...Grip part, B...Rope, C...Cap part, E...Rope support ring, 1
...Latching portion, 2... Guide groove, 3... Locking recess, 4... Guide protrusion, 5... Locking protrusion, 6...
Substrate, 7...notch.

Claims (1)

[Scope of utility model registration request] In a jump rope in which a rope B having a hooking part 1 at the tip is inserted into a grip part A having at least a partially hollow shape and supported by a cap part C,
A plurality of locking recesses 3 are formed at appropriate intervals between a long guide groove 2 and the guide structure 2 along the longitudinal direction at a desired portion of the grip portion A; A rope support ring E consisting of a guide protrusion 4 and a locking protrusion 5 protrudingly provided on a base plate 6 with high restorability is inserted into the cylindrical shape of the grip portion A, and the rope support ring E is inserted into the cylindrical shape of the grip portion A. The rope B is made to be extendable and retractable by sliding and fitting the rope B along the guide groove 2 of the grip part A.