Golf training ball

A golf training ball comprising at least two cloth stuffed elements each element featuring a sealing point and, stitching to combine the cloth stuffed elements into a unitary ball, where the stuffing comprises a soft fiber, and the cloth elements and stitching are so arranged such that the unitary ball has a core and a periphery with a density gradient between the core and periphery where the golf training ball has a heavier mass in the core and a lesser mass of a soft structure at its periphery to provide a high shock absorbing ability.

BACKGROUND OF THE INVENTION 
Various golf balls for the practice at the places rather than standard golf 
training courses have been disclosed, and have appeared on the market. 
FIG. 1 shows a golf training ball according to the prior art. This 
structure of golf ball is molded from plastic, having a hollow, slotted, 
spherical body. There is also known another structure of golf training 
ball which is molded from high-density rubber sponge in a solid state. The 
conventional golf training balls have various drawbacks as outlined 
hereinafter: 
(1) Short service life. The said hollow, plastic golf training ball have 
weak structure strength and low shock absorbing ability, and tend to break 
down upon a heavy strike. The said solid high-density rubber sponge golf 
training ball tend to break after several hits (about 30 hits on an 
average). 
(2) Low coefficient of safety. When a plastic golf training ball hits a 
person or an object, the rigid outer shell of the ball will cause a severe 
damage to the person or the object. The injury will be more serious if the 
ball is broken. A high-density sponge golf training ball has relatively 
high density and its shock absorbing ability is still low, therefore it 
will cause a hurt when hitting or bouncing to hit a person. 
(3) High noise. Because regular golf training balls have low shock 
absorbing ability, they will produce a big noise when hit. 
(4) Being pollutive. Regular golf training balls wear quickly with use, and 
are not reclaimable when damaged. The cost of the disposal of wasted golf 
training balls is high. 
In view of the aforesaid problems, a good golf training ball shall meet the 
following requirements: 
(1) Having a solid structure of proper density. Because regular hollow, 
plastic golf training balls have a light mass, they do not fly in the 
track they should have when hit. Regular high-density rubber sponge golf 
training balls have a heavy mass, and will cause an injury when it hits a 
person. If to reduce the mass of a solid rubber sponge golf training ball, 
it tends to be easily deformed and its service life will be relatively 
shortened. 
(2) Having a soft peripheral structure, a density gradually decreased from 
the center toward the periphery. This arrangement facilitates the 
practicing of spin, produces low noise when hit, and can buffer the impact 
force when the ball hits a person or an object. 
(3) Being durable and repairable. Using durable golf training balls greatly 
saves the training cost, and reduces the possibility of polluting the 
environment. 
SUMMARY OF THE INVENTION 
The present invention has been accomplished under the circumstances in 
view. It is one object of the present invention to provide a golf training 
ball which is suitable for the practice of hitting indoors in a narrow 
space against a wall, window, curtain, certain target and etc. It is 
another object of the present invention to provide a golf training ball 
which has a high shock absorbing ability and does not cause an injury when 
hitting a person or an object. It is still another object of the present 
invention to provide a golf training ball which is practical in use and 
can be positively driven to fly in the directed course and to rotate in 
the directed direction. It is still another object of the present 
invention to provide a golf training ball which produces low noise when 
hit. It is still another object of the present invention to provide a golf 
training ball which is durable in use, and does not deform after for 
example two hundred of hits. It is still another object of the present 
invention to provide a golf training ball which can be easily repaired by 
the user when damaged. It is still another object of the present invention 
to provide a golf training ball which is less pollutive. 
According to one aspect of the present invention, the golf training ball 
has a density gradually and equally reducing from the center toward the 
periphery. The high mass of the center helps the ball from not being 
deformed and also helps the ball being steady when hit and flies. The soft 
feature of outer shell helps the ball having high shock ability in order 
to not hurt a person or an object when miss hitting. 
According to another aspect of the present invention, the golf training 
ball is formed by combining two fiber-stuffed cloth balls (shaped like a 
chinese stuffed bun) into one ball by means of stitches. And the combining 
area is the heavy end of the said two balls.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
Reffering to FIGS. 2, 3, 4, and 5A, a golf training ball in accordance with 
the present invention is made by combining two fiber-stuffed cloth balls 
1A, 1B into a ball. 
The fiber-stuffed cloth balls 1A, 1B are made by putting proper quantity of 
stuffing member 2A, 2B inside the round cloth and have round cloth's 
margin gathered and sealed by means of stitches with a thread 4 at the 
point 3. The point 3 becomes the biggest density area of the balls 1A, 1B. 
The stuffing members 2A, 2B are made from polyester fibers, which enables 
the periphery of the balls 1A, 1B having soft feature. 
Then, we let two fiber-stuffed cloth balls 1A, 1B pushed to be combined to 
form a round ball from their point 3 to point 3. And then a thread 4 is 
used to stitch and fix the two bails 1A, 1B into a round golf training 
ball along the margin of connecting face of the two fiber-stuffed cloth 
ball 1A, 1B. 
When the golf training ball is made, the density is gradually and equally 
reduced from the center toward the outer shell. The fiber-stuffed cloth 
balls 1A, 1B may be connected each other by a bonding agent at the face of 
points 3, which will help the maker to fix the two balls into a golf 
training ball. A mold having a semispherical cavity may be used for making 
the fiber-stuffed balls 1A, 1B. Furthermore, the two fiber-stuffed cloth 
balls 1A, 1B may have different colors (see also FIG. 5A). 
As an alternate form of the present invention, the two fiber-stuffed cloth 
balls 1A, 1B have the same color, and a cloth collar 1C having a different 
color is covered over the stitches 4 (see also FIG. 5B) by means of 
stitches. 
It is to be understood that the drawings are designed for purpose of 
illustration only, and are not intended as a definition of the limits and 
scope of the invention disclosed.