Table Tennis Bat Sports
A
basic table tennis racket (has notions of being called a "paddle" or "bat") is used by table tennis players.
The table tennis racket is usually made from laminated wood covered with rubber
on one or two sides depending on the player's grip. Unlike a conventional
"racket", it does not include strings strung across an
open frame.
The
racket may be of any size, shape or weight but the blade shall be flat and
rigid. At least 85% of the blade by thickness shall be of natural wood; an
adhesive layer within the blade may be reinforced with fibrous material such as
carbon fibre, glass fibre or compressed paper, but shall not be thicker than
7.5% of the total thickness or 0.35mm, whichever is the smaller.
A side
of the blade used for striking the ball shall be covered with either ordinary
pimpled rubber, with pimples outwards having a total thickness including
adhesive of not more than 2.0mm, or sandwich rubber, with pimples inwards or
outwards, having a total thickness including adhesive of not more than 4.0mm.
Ordinary
pimpled rubber is a single layer of non-cellular rubber, natural or synthetic,
with pimples evenly distributed over its surface at a density of not less than
10 per cm² and not more than 30 per cm².
Sandwich
rubber is a single layer of cellular rubber covered with a single outer layer
of ordinary pimpled rubber, the thickness of the pimpled rubber not being more
than 2.0mm.
The
covering material shall extend up to but not beyond the limits of the blade,
except that the part nearest the handle and gripped by the fingers may be left
uncovered or covered with any material.
The
blade, any layer within the blade and any layer of covering material or
adhesive on a side used for striking the ball shall be continuous and of even
thickness. The surface of the covering material on a side of the blade, or of a
side of the blade if it is left uncovered, shall be matt, bright red on one
side and black on the other. The racket covering shall be used without any
physical, chemical or other treatment. Slight deviations from continuity of
surface or uniformity of colour due to accidental damage or wear may be allowed
provided that they do not significantly change the characteristics of the
surface. Before the start of a match and whenever he or she changes his or her
racket during a match a player shall show his or her opponent and the umpire
the racket he or she is about to use and shall allow them to examine it.
Most TableTennis equipment has remained relatively unchanged since the introduction of
the sport. The racket (or bat, as is the common term) is an exception with the
changes mainly the result of the development of different playing techniques
and technology. Basic bats can be purchased for under INR 200. However, bats
for top class play can cost in excess of INR 5,000.
These
days, development is seeing the bat evolve into the current hi-tech product.
Earlier, the bats were with 1mm pimpled rubber sponge covered, but while this
was suitable for all round play it did impose limitations on spin. The above
was superseded by the 2mm pimple rubber bat which proved ideal for attacking
play, but again limited spin. In terms of innovation, the next in line was a
bat which was designed to counter topspin by providing a surface which would
absorb heavy topspin. The maximum degree of spin and speed was produced by a
bat which had a 1mm reverse rubber sponge surface. Finally, for greatest
control, the 1mm reverse rubber sponge bat was produced.
These
days, both sides of the blade are invariably covered with a layer of rubber and
sponge. The nature of this combination influences the speed and spin which the
user can impart onto the ball. Rubbers have various properties but are essentially
of two types:
a)
Reversed (pimples in – smooth)
b)
Pimples out.
For
greater speed and/or spin a greater thickness of sponge is used.
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