The handle used at present is basically a straight stick or a stick close to the straight stick, and cannot be in time with the fingers of people, so that the power and the dexterity on the handle cannot be fully exerted and transmitted, and the problem of serious power and dexterity waste exists.
Only take a badminton racket as an example for explanation:
1. is not flexible
The racket handle is a straight rod type flat octagon. When the racket is rotated by fingers, the racket has a too long diameter and can be circulated without tracks, so that the racket cannot be adjusted to various angles.
2. Without force
(1) The thumb not only has a force of clamping the index finger and the middle finger, but also has a force of forward impact of the thumb, and the component of the force cannot be exerted on the straight stick-like handle. Therefore, when the badminton is buckled by the reverse hand, the thumb slides forwards by one piece when the badminton is buckled once.
(2) When the racket is swung, a strong centrifugal force is inevitably generated, and the straight stick type racket handle is not blocked and is easy to slide out. The fingers must therefore exert an unnecessary grip to prevent the racquet from being dropped out.
(3) When the palm exerts force on the wide side of the handle, there is no obvious point of exertion, and thus the grip strength cannot be exerted effectively.
(4) Because the center line of the width of the racket handle is in the same direction with the racket face, the racket handle is not used for a knife edge (racket frame) but used for batting, and is powerless. Meanwhile, the forehand and the backhand must use the two sides of the racket to hit the ball, and the action of adjusting the beat shape by the fingers is large, so the motion is slow.
In view of the above disadvantages, the present invention (see the attached drawings) adopts the following measures to overcome:
first, the front end of the racket handle is made into a horizontal oblate spheroid (1) with circular arc edge, the upper part is a crown-shaped reinforcing body (5), and the lower part is connected with a half of oblate ellipsoid (or regular ellipsoid) (2) through a thinner neck part. Then the handle passes through a section of common handle (3) and is connected with a crossed gear-shaped handle (4) with alternate concave and convex. When the racket is connected, the center line of the width of the racket handle is vertical to the racket face, and a 90-degree interchange type is formed.
After the measures are taken, the thumb and the forefinger can not only pass through the thinner neck part to facilitate the free rotation of the racket, but also can be sleeved on the neck part, so that the racket is not easy to go out. Meanwhile, the forward impact of the thumb is intercepted by the transverse oblate spheroid, and the full play is finally obtained. And because the back half section of the racket handle is in a cross gear shape, the palm can exert force on all angles of the racket handle in a balanced way. In addition, the center line of the width of the racket handle is vertical to the racket surface, so that the front hand and the back hand can hit the ball by one surface or two surfaces of the racket, and the racket is quick and powerful.
As mentioned above, the advantages of the new universal handle are: 1. flexible and 2 powerful.
In the following, some specific application problems are explained:
1. when the invention is used for various rackets, the connection between the handle and the racket face does not adopt a vertical structure (the center line of the width of the handle is vertical to the racket face). Or the rear half section does not adopt a cross gear shape, which is the simple type of the invention.
2. The invention is used for a round stick-shaped (or regular polygon-shaped) handle, and a regular oval sphere (2) is connected with a round handle (3) and then is connected with a regular cross gear-shaped handle (4).
3. The flat elliptic sphere (2) and the general handle (3) can be made into a gear shape with alternate concave and convex for skid resistance. (tooth shape, tooth number, tooth depth are not limited).
4. When the invention is used for table tennis bat, the bat surface (6) which prevents the fingers from rotating the bat handle is removed. A crown-shaped reinforcing body (5) is provided above the oblate spheroid regardless of size and shape.
5. When the invention is used for other articles, the parts except the characteristic parts of the oblate spheroid and the oblate ellipsoid can be changed at will. Or continue to cure the old case, or develop a new way.
6. The term "connection" as used herein refers to a connection of shapes.
7. The present invention has low requirements for differences in accuracy, data and scale. Slight deviations should not be considered as falling within the scope of protection of the present claims.
8. The present invention is suitable for different sizes and models when being put into production.