JPH03209Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a grip strength and wrist strength training device.
More specifically, the present invention relates to a device that can simultaneously strengthen grip strength and wrist strength with simple operation while bathing.

[Prior Art] It has been known that baseball players and others strengthen their wrists by stirring the palms of their hands in warm water while taking a bath. However, such exercises are performed without the use of any equipment.

On the other hand, devices for strengthening grip strength using springs are known.

[Problem to be solved by the invention] The conventional method for strengthening the wrist during bathing involves simply scratching the warm water alternately with the palm and the back of the wrist, so there is little resistance from the water unless the wrist is moved repeatedly. Additionally, only the wrists are strengthened, and if you want to increase your grip strength, you will need to use a separate device to strengthen your grip.

The purpose of the present invention is to provide a simple device that can simultaneously train wrist strength and grip strength using only a single device.

[Means for Solving the Problems] The grip strength and wrist strength training device of the present invention has a resistance plate and a ball portion fixed to the edge of the resistance plate, and is integrally made of a water-resistant elastic material. The resistance plate and the ball part are each hollow, and the hollow body is provided with a communication hole that communicates the inside with the outside. If you hold it in your hand and bend and stretch your wrist as if stirring water with the resistance plate, the resistance of the water applied to the resistance plate will strengthen your wrist. At the same time, since the ball part is firmly gripped, the strength of the fingers and grip is strengthened.

Furthermore, the resistance plate and the ball are hollow, and the hollow body has a hole that communicates the inside and outside, so it is lightweight and easy to handle when not in use, and hot water does not enter inside when in use. Therefore, large buoyancy is not applied to the equipment and does not interfere with exercise.

Furthermore, in this case, since the ball part is made of an elastic material, it is possible to train strong grip strength when crushing the ball part by hand to push out the water inside.

[Example] Next, the device of the present invention will be explained with reference to the drawings.

FIG. 1 is a perspective view showing one embodiment of the instrument of the present invention, FIG. 2 is a sectional view taken along the line -- in FIG. 1, and FIG. 3 is a perspective view showing another embodiment of the instrument of the present invention.

The device A shown in FIG. 1 is composed of a flat resistance plate 1 and a ball portion 2 fixed to the edge thereof.
As shown in FIG. 2, the resistance plate 1 and the ball portion 2 are each hollow and integrally formed, and their interiors communicate with each other through a slit 3.

A communication hole 4 with the outside is formed at the other end edge of the resistance plate 1.

Apparatus A can be molded from ordinary synthetic resins such as polyethylene, polypropylene, polystyrene, polycarbonate, and polyvinyl chloride, as long as it is water resistant and does not deform even at the temperature of bathing water (for example, 42 to 43 degrees Celsius). Any material may be used.

This product is used by firmly grasping the ball part 2 and bending and stretching the wrist in hot water, as shown by the imaginary lines in FIG. As a result, a large fluid resistance is applied to the resistance plate, so even when the wrist is moved slowly, a strong resistance is generated, and the muscles of the wrist and the fingers that grip the ball part can be trained.

Since the instrument A shown in Fig. 1 is hollow inside,
It has the advantage of being lightweight and easy to handle, and requires less material. On the other hand, when submerged in hot water, the communication hole 4
Since the hot water enters from the inside, the buoyancy does not interfere with the movement of the wrists.

Note that if the specific gravity or apparent specific gravity is close to 1, there will be little interference due to buoyancy even if it is made solid.

Since the ball portion 2 is made of a resilient material such as rubber or foam material, the water inside the ball portion 2 can be squeezed and squished to blow out the water from the communication hole 4, thereby helping to strengthen the grip. can.

It should be noted that when the seam pattern 5 is formed in a convex shape on the surface of the ball portion 2, there is an advantage that various strengthening exercises for the hands and fingers can be performed depending on the type of grip such as a curved ball.

In device B shown in FIG. 3, the width of the resistance plate 1 is narrowed at the portion where it is connected to the ball portion 2. In the device B shown in FIG. Therefore, it is easy to grip the ball part 2. Furthermore, since a large number of dimples 7 are provided on the surface of the ball part 2, the ball part 2 can be firmly gripped. Note that a large number of small protrusions may be provided instead of dimples.

Furthermore, a plurality of slit-like openings 8 are formed in the resistance plate 1 of the device B. The opening 8 is for adjusting the resistance force of the resistance plate 1. That is, if all the openings 8 are left open, the resistance will be small, and if one or some of the openings 8 are blocked with a cap or other object, the resistance will be large.

[Effects of the invention] By using the device of the invention, it is possible to easily perform exercises to strengthen wrist strength and grip strength while bathing, that is, without taking extra time.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing one embodiment of the instrument of the present invention, FIG. 2 is a sectional view taken along the line -- in FIG. 1, and FIG. 3 is a perspective view showing another embodiment of the instrument of the present invention. Main symbols in the drawing: A, B...apparatus, 1...resistance plate, 2...ball portion, 4...communication hole.

Claims (1)

[Scope of utility model registration request] It has a resistance plate and a ball portion fixed to the edge of the resistance plate, and is integrally formed from a water-resistant elastic material, and the resistance plate and the ball portion are each hollow, and the hollow A grip and wrist strength training device comprising a body provided with a communication hole that communicates between the inside and the outside.