JPH0532139Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a jump rope grip (hereinafter referred to as a grip) whose length can be freely adjusted.

(Prior Art) A jump rope is used by adjusting the length of the rope and grip according to the physique of the user, and the means for adjusting the length of the grip are generally as shown in Fig. 5. A pair of male and female pipes are mutually threaded so that the overall length can be adjusted by rotating the pipes.

(Problems that the invention aims to solve) With such grips, it takes time to adjust the length, and during long-term use, the threads on either of the male and female pipes wear out, making the grip unstable. It had the disadvantage of getting worn out and being unable to be adjusted.

(Means for Solving the Problems) The present invention is a grip consisting of an outer cylinder and an inner cylinder made of arbitrary plastic, in which a protrusion provided on the outer cylinder comes into contact with a groove provided in the inner cylinder and moves. This is a grip that is fitted and fixed at a desired location and whose length is adjustable, and its configuration will be explained based on an example.

(Example) In grip A, in which an outer cylinder 1 and a middle cylinder 2 that can be inserted into the outer cylinder 1 are made of any plastic, a U-shaped through groove 3 is provided approximately at the center of the upper surface of the outer cylinder 1, and a support rod 4 is provided. A convex body 5 is formed, and the head 5' of the convex body 5 is exposed on the inner wall C of the outer cylinder 1.

The support rod 4 is formed thin to provide elasticity.

Next, on the surface of the rear region of the middle cylinder 2, vertical grooves 7 having a width and depth that allow the movement of the head 5' of the protrusion 5 of the outer cylinder 1 are provided in parallel in the length direction. An arbitrary number of lateral grooves 8 are provided perpendicularly to the longitudinal direction of the middle cylinder 2 from 7 to 7.

The vertical groove 7 is formed into a shallow groove 7' in a region extending from the rear end E of the middle cylinder 2 to the transverse groove 8 at the rearmost part, and is formed into a deep groove 7'' in the other part.

The lateral groove 8 has a deep groove G at an intersection 8' where it intersects with the vertical groove 7 and an end 8'' of the lateral groove 8, and a shallow groove F at the center 9.
Although a non-slip circumferential groove 6 is provided on the outer surface of the insertion opening B of the outer cylinder 1, it is not possible to prevent the grip from slipping by forming the surface of the outer cylinder 1 in addition to the circumferential groove 6 into an uneven or rough surface. Optional.

(Operation) When the rear end E of the middle cylinder 2 is inserted into the insertion opening B of the outer cylinder 1, and the head 5' of the convex body 5 is brought into contact with the shallow groove 7' of the longitudinal groove 7, the shallow groove 7 is inserted. ' moves while pushing up the convex body 5, fits into the rearmost lateral groove 8, and comes into contact with the deep groove 7''.

In this case, since the convex body 5 is formed thin and connected to the elastic support rod 4, the head 5' comes into smooth contact with the groove and does not come off from the groove.

Next, move the middle tube 2 to adjust the grip to the desired length, bring the head 5' of the convex body 5 into contact with the intersection 8' of the vertical groove 7, and move it toward the end 8'' of the horizontal groove 8. When the horizontal groove 8 is rotated so as to force it, the shallow groove F in the center part 9 of the horizontal groove 8 pushes up the convex body 5 and fits into the deep groove G in the end part 8'', thereby fixing the middle cylinder 2.

(Effects) Since the present invention has the above-described structure, when it is desired to adjust the length of the grip, the inner tube 2 is rotated and the head 5' of the convex body 5 is brought into contact with the vertical groove 7, and the desired length is adjusted. Move the middle tube 2 so that it is the same length as the grip, and reach the intersection 8'.
The convex body 5 is brought into contact with the end 8'' of the horizontal groove 8, and since the intersection point 8' of the vertical groove 7 and the horizontal groove 8 is formed in the deep groove G, the convex body 5 moving in this area The head 5' of the raising body 5 is pressed downward by the elastic support rod 4 and there is a slight resistance, and the position of the horizontal groove 8 can be easily determined, so the outer cylinder 1 can be grasped with one hand. Grasp the middle cylinder 2 with the other hand and move it, and by the light resistance of the head 5' which moves in the vertical groove 7 corresponding to the desired length, the intersection 8' of the horizontal grooves 8 is recognized, and the middle cylinder 2 is moved. Turn approximately 1/3 to turn the head 5' of the convex body 5 to the end 8''
It becomes possible to fix the middle cylinder 2 by simply fitting it into the grip, and a grip whose length can be easily adjusted can be provided.

[Brief description of the drawings]

Fig. 1 is a plan view of the grip showing the inner cylinder inserted into the outer cylinder, Fig. 2 is a sectional view taken along line XX in Fig. 1,
Figure 3 A is a XX cross-sectional view of the outer cylinder, B is a Y-Y cross-sectional view of the same, Figure 4 A is a XX cross-sectional view of the inner cylinder, and B is a Y-Y cross-sectional view of the same.
-Y sectional view, FIG. 5 is a sectional view of a conventional grip. 1... Outer cylinder, 2... Middle cylinder, 3... Penetration groove, 4...
... Support rod, 5 ... Convex body, 6 ... Circumferential groove, 7 ... Vertical groove, 7' ... Shallow groove, 7'' ... Deep groove, 8 ... Horizontal groove,
8'...Intersection, 8''...End, 9...Center, 10
...Pipe, 11...Rubber pipe, 12...Screw, A...Grip, B...Insertion port, C...Inner wall, D...Tip, E...Rear end, F...Shallow groove,
G... Deep groove.

Claims (1)

[Scope of utility model registration request] In the grip A, which consists of an outer cylinder made of arbitrary plastic and a middle cylinder that can be inserted into the outer cylinder, a support rod 4 with a U-shaped through groove 3 provided in the approximate center of the upper surface of the outer cylinder 1 and a convex A raised body 5 is formed, the head 5' of the raised body 5 is exposed on the inner wall C of the outer cylinder 1 to form the outer cylinder 1, and the raised body 5 is formed on the surface of the rear region of the middle cylinder 2. Vertical grooves 7 having a width and depth that allow the head 5' to move are provided in parallel in the length direction, and horizontal grooves 8 extending perpendicularly to the length direction of the middle cylinder 2 from the vertical grooves 7 are formed on the surface of the middle cylinder 2. The inner cylinder 2 is inserted into the insertion opening B of the outer cylinder 1, and the head 5' is brought into contact with a desired horizontal groove 8 of the vertical groove 7.
A rope grip characterized in that the length can be freely adjusted by rotating the middle tube 2 and fitting it into the end portion 8 to fix the middle tube 2.