JP2979491B2 - Hand aid - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates generally to hand-held assistive devices, and more particularly, to improving the transfer of force between a hand and the handle of a tool such as sports equipment. It is about assistive devices that can help you.

[0002]

2. Description of the Related Art When swinging while holding a baseball bat, tennis racket, or hockey stick, there is a gap between these handle portions and the base of the thumb and forefinger, and the pressure is gently increased. The web portion of the skin, such as the web between the thumb and the index finger, becomes blocked. This area is a low density place with no bones or muscles. When a player swings a bat, racquet or stick or hits a ball or puck, the impact forces the bat handle, racquet handle, or stick handle back into the web between the fingers, Compress the web portion. This absorbs and disperses the energy that would otherwise be transmitted to the ball or puck, and therefore results in a weaker shot than the optimal shot. No matter how tight the handle is, this part remains as soft as a sponge. When the swing begins before the ball or puck is hit, the hand holding the handle moves forward, but the inertia of the bat tends to return its movement towards the web, relatively speaking. , Compressing the web portion. Thus, the handle slows down and must eventually catch up using the front of the hand.
As well as the speed of the bat, racket, and stick, timing and power are lost, eventually resulting in a shot that is weaker than the optimal or full shot. U.S. Pat. No. 4,461,043 seeks to provide a cushioning effect in the hand, but does not improve the speed or power transfer between the hand and the handle of the baseball bat.

[0003]

SUMMARY OF THE INVENTION Increasing the speed of a bat, racquet or hockey stick to improve the speed or force transfer between the hand and the bat, racquet or hockey stick improves the power of the ball or puck. There is a need for a simple device that can obtain hitting. Such devices should be able to be made in various sizes, forms and styles and should be able to protect hands from injury. The device must be compatible with a variety of tools, such as weightlifting and other sports, or hammers. The device must reduce the burden on the finger.

[0004]

SUMMARY OF THE INVENTION The hand aid of the present invention satisfies all of the aforementioned needs. This hand assist device is generally in the shape of an inverted L on the side, and the upper part that becomes horizontal is the web part of the hand between the base of the thumb and the base of the index finger (the web-like part between the thumb and the index finger). Consists of a solid plug (wedge-shaped) that extends over the soft part of the plug. The vertical part is integral with the horizontal part, from which it descends to the palm. The front part of the plug is a bat or hockey
Perfect for curves on sticks and rackets
It is bent to match . This plug is resilient and can be grooved, notched, or jagged to make it suitable for various handle profiles, for example, a hammer or other hand-held tool. ing. The back of the plug is also resilient, and the front of the plug is relatively inflexible. A vertical slot is on the front of the plug to hold a removable reinforced metal insert or the like.

[0005] Since the plug protrudes and fills the gap between the webs rather tightly, it is worn so as not to be bothered by batting gloves (which are always attached or detached), and gloves for fielders It can be worn without any obstacle to defense. Furthermore, the plug can be removably inserted into pockets such as batting gloves, hockey gloves, etc., and can be attached to the front of the web portion of these gloves. Alternatively, the plug carries an elastic strip and can be wrapped around the user's hand or wrist without gloves. The plug also
It can also be releasably or permanently connected to the bat, racket or stick with something like an adhesive or a spring clip. The aid can be used with hand tools, such as barbells, or any other type of handle-holding sports equipment.

[0006]

The plug structure of the present invention enhances the leverage action.
Vertical section with an upper end extending rearward for
And this allows leverageAccording to the principle of
Therefore, the power transmitted from the hand to the tool is increased.

[0007]

1 to 4 More specifically, referring to FIGS. 1 to 4, a first preferred embodiment of the hand assist device of the present invention is schematically illustrated. A hand assist 20 is shown, which is configured to fit snugly and comfortably into a web portion 24 (FIG. 4) of a hand 25 between the base of the thumb 26 and the base of the index finger 28. consists of hard not plug 22 was, the front portion 30 of the plug 22, bat, racket,
Curved to fit the outer shape of a hockey stick or similar (not shown)
doing.

The plug 22 is generally in the shape of an inverted L when viewed from the side and has an upper generally horizontal portion 34 and a depending portion 36 integral therewith. Plug 22
Rear portion 38 is curved over the front portion of web portion 24 to fit snugly around it, and descends to the palm for contact therewith. Thus, the horizontal portion 34 tapers rearward and gradually narrows, and the vertical portion 36 also tapers and narrows downward.

[0009] As shown in FIG. 2, the plug 22, plug <br/> steel click and, metal, wood or relatively soluble which forms the forward portion 30 is made of the equivalent of these, and fLEXIBLE no have hard portion 40, a rubber, Purasuchiiku and a fairly flexible portion 42 for or have made of the equivalent of these forms the rear portion 38. If desired, the plug 22 is a metal, such as a hard plastic, or it somewhat flexible soft rubber, which may be made of any not hard materials such as soft plastics will be appreciated.

It will be appreciated that the plug 22 can be of various sizes and shapes. If your hand wraps around the handle of a tool, such as a bat, racket, hockey stick, or alternatively, the handle of a tool, such as a hammer, scissors, or pliers, it fits perfectly on the web and palm of your hand. Can be adapted as follows. Plug 22
Is placed in a pocket or glove (not shown) to be worn on the hand or glued to the front portion of the web portion of the hand. Alternatively or alternatively, plug 22 may be permanently or releasably clipped, glued, or attached to handle 32. The plug 22 closes the web portion 24 of the hand 25 during use and contacts the palm,
The handle 3 is curved to exactly match the shape of the handle 32, and the handle 3
The more compact, quicker and more powerful swinging of the handle 32 is promoted by allowing the 2 to be swung back and forth in the compressed web portion 24.

Further, when contacting the head of a bat, racket, stick, or the like, which is an element of a baseball or the like, with the handle 32, the web portion 24 is moved backward in the hand 25 without rebounding. move, but to absorb a certain amount of such a force, however, because it is relatively stationary with respect to the hand 25, every effort is transmitted to the ball, and Do as they may push to a more distant the ball, net The effect of the power is a more powerful blow.

A similar situation applies when the handle 32 is attached to the operating head of a tool such as a hammer.
As a result, the transmitted impact force is even stronger. The part of the hand 25 in the force transmission area is relatively elastic
Despite this, as long as the compressed portion 42 of the plug 22 is retained, the impact felt by the hand 25 when hitting a ball, puck, etc. is evenly distributed in the hand 25, which makes it effective. To prevent injury.

Therefore, the hand assisting device 20 not only protects the hand 25 but also provides the handle 32
And the maximum release of force from the hand to the target struck by the handle 32. FIGS. 5 and 6 A second preferred embodiment of the hand aid of the present invention is schematically illustrated in FIGS. Here, the auxiliary tool 20
a is shown. The same components and the auxiliary tool 20 of the foregoing embodiments are given like reference numerals, but with a "a" of the lowercase <br/> characters after. The assisting tool 20a is substantially the same as the assisting tool 20 except for the following points.

(A) Plug 22a is formed of a single, uniform, slightly flexible material, such as plastic or rubber: (b) Front portion 30a is rigid and has a vertical slot Strengthened by using a curved steel plate 50 removably disposed within 52: (c) A resilient strap 72 is secured to plug 22a.

FIG . 7 A third preferred embodiment of the hand aid of the present invention is shown schematically in FIG. Here, the auxiliary tool 20b is shown. Aid 20, or while the 20a and like components are given like reference numerals, marked with "b" in lowercase later. The auxiliary tool 20b is substantially the same as the auxiliary tool 20a except for the following points.

(A) The plug 20b has no steel plates or slots: (b) The elasticity and strengthening of the front portion 30b with respect to the various handles is enhanced by a plurality of spaced-apart vertical cutouts 60.
What is enhanced by being formed in Ob: Plug 22b substantially possesses the advantages of plugs 22 and 22a.

FIGS. 8 and 9 A fourth preferred embodiment of the hand aid of the present invention is schematically illustrated in FIGS. Here, the auxiliary tool 20
c is shown. Auxiliary device 20, 20a or 20
The same components as those in b are denoted by the same reference numerals,
It marked with "c" of lower-case letters after.

The aid 20c is substantially the same as the aid 20 except that the front portion 30c is not straight and vertical. Instead, the front portion 30c of the plug 22c has the lower portion 31c and an upper portion 33c forms a certain desired angle with respect to each other. This design results in a lever fulcrum 37c that is essentially below the upper portion 34c, as opposed to the lever fulcrum of the plug 22 at the intersection of the upper portion 22 and the front portion 30 of FIG.

The structure of the plug 22c is such that the position of the lever fulcrum of a tool such as the bat 32 has been moved closer to the base of the thumb 26 of the hand, so that the bat has its action point As a result, even stronger force is transmitted from the hand to the bat, resulting in more effective force transmission. Pointed lever 37
It will be appreciated that c is not required. A slightly more rounded lever fulcrum can be located at the lever fulcrum 37c in the more rounded vertical front portion 30 within the scope of the present invention. Plug 22c is plug 2
2,22A, has all the other advantages with 22b is.

Various modifications, changes, and alterations will be made to the hand assist device, its components, and its parameters of the present invention. These modifications, changes and alternations which fall within the scope of the appended claims are a part of the present invention.

[Brief description of the drawings]

1 is a schematic Ryakuhasu view of a first preferred embodiment of the aid of the hand of the present invention.

2 is a partially cut-away schematic plan view of the aid of FIG. 1, approaching the handle of a baseball bat.

3 is a schematic side view of the aid in Figure 1.

FIG. 4 is a schematic rear perspective view of the assisting device of FIG. 1, showing a state used around a handle of a baseball bat held by a player.

5 is a second preferred approximate Ryakuhasu <br/> view of aid hand of the present invention.

FIG. 6 is a schematic sectional view taken along line 6-6 in FIG. 5;

FIG. 7 is a schematic plan view of a third preferred embodiment of the hand assist device of the present invention.

8 is a schematic Ryakuhasu view of a fourth preferred embodiment of the aid of the hand of the present invention.

FIG. 9 is a schematic side view of the hand aid of FIG. 8;

[Explanation of symbols]

Reference Signs List 20 hand assist device 22 plug (wedge-shaped portion of hand assist device of the present invention) 24 web portion (soft web-like portion between thumb and index finger of human hand) 30 front portion of plug 32 tool or tool Handle 34 horizontal part of plug 36 vertical part of plug 38 rear part of plug

Claims (4)

(57) [Claims] 1. A aid of the hand that is used to handle tools, said auxiliary tool extends over the entire web portion of the interlude between thumb root and the human index finger root, said web portion
Consists rigid plug formed in a shape to fill the minute, substantially horizontal portion of the plug forms a generally inverted L-shape in its side, and the upper <br/> side extends over the web portion of the hand With the outer shape of the pattern on its outer surface
Has the same curve as the portion becomes substantially horizontal is given a tapered rearward portion curved from the front portion is formed is thin, oriented from the horizontal portion downwardly
The vertical portion is formed integrally with the vertical portion, the vertical portion is provided with a curve that matches the outer contour of the handle ,
And a forward portion made with no hard portion flexible, and a adapted flexibility rear portion having to be in contact with the palm, the plug, the hand between the thumb and human index finger of It is held so as not to move to the web portion, aid of the hand, characterized in that to be able to transmit directly committed to the handle. 2. A aid of the hand according to claim 1, the notch on the outer surface and the curved front portion
Provided aid of the hand so as to have elasticity in order to facilitate the operation skillfully the handle. 3. The aid of the hand according to claim 1, wherein the plug aids <br/> hand were provided with removable metal insert. 4. The hand aid of claim 1, wherein the curved forward portion of the vertical portion has an upper portion and a lower portion, the upper portion being relative to the lower portion.
Hand aid with desired angle .