Improved diving wet suit

A diving wet suit comprises an inner shell having a body formed of a non-stretch material that is a flexible plastic sheet reinforced with a fabric and including a complete waterproof stretch material for a neck and both wrists and shoes for both feet and a waterproof fastener extending from the back to both arms of the body and an outer shell formed of a resin coated cloth and including pads in leg and hip portions and an opening extending from the back to both arms. The inner and outer shells are provided with holes for mounting valves in the breasts and shoulders so as to fixedly hold them between the valves. Included also are one area fastener provided in the vicinity of the waterproof fastener attached to the inner shell from the back to both arms and the other area fastener provided on the outer shell to join the inner and outer shells together.

BACKGROUND OF THE INVENTION 
1. Field of the Invention 
The present invention relates to a wet suit for diving. 
2. Statement of the Prior Art 
A problem with a conventional diving wet suit is that when the wearer makes 
a dive into a reefy area, it is often damaged because of being formed of a 
single sheet, and is eventually so torn that it cannot be used. 
A problem with a conventional shell type wet suit is that it is not 
photogenic in water, since it is too closely fitted to the wearer's body. 
SUMMARY OF THE INVENTION 
In view of the foregoing problems, an object of this invention is to 
provide a diving wet suit which comprises super-waterproof structure, is 
not damaged even when the wearer makes a dive into a reefy area, and is 
photogenic in water. 
According to this invention, there is provided a diving wet suit comprising 
an inner shell having a body formed of a non-stretch material that is a 
flexible plastic sheet reinforced with a fabric and including a complete 
waterproof stretch material for a neck and both wrists and shoes for both 
feet and a waterproof fastener extending from the back to both arms of 
said body and an outer shell formed of a resin coated cloth and including 
pads in laps and hips and an opening extending from the back to both arms, 
said inner and outer shells being provided with holes for mounting valves 
in the breasts and shoulders so as to fixedly hold them between the 
valves, and including 
one area fastener provided in the vicinity of said waterproof fastener 
attached to said inner shell from the back to both arms and the other area 
fastener provided on said outer shell to join said inner and outer shells 
together.

DETAILED DESCRIPTION OF THE INVENTION 
A body of an inner shell generally shown at 1 is formed of a non-stretch 
material that is a flexible plastic sheet reinforced with a fabric. 
Various fabrics of natural or synthetic fibers may be used to this end. 
The flexible plastics used may be soft polyvinyl chloride or other soft 
plastics. The fabric is completely embedded in the flexible plastic to 
reinforce the sheet therewith. Although the inner shell may be fabricated 
in various manners, it should preferably be made by thermal fusion. As the 
material for the inner shell, use may be made of, e.g., PVC-tarpaulin. 
Being in the aforesaid structure, the thus prepared inner shell excels in 
weather resistance, water resistance and oil resistance. 
Being in the aforesaid structure, said sheet is non-stretch. Since the 
inner shell body is formed of a non-stretch material, it is possible to 
prevent an increase in the buoyancy of the inner shell 1 owing to its 
expansion. 
The inner shell 1 includes a neck area 11, wrist areas 12 and shoes areas 
13, all formed of a stretch material for complete waterproofness. That 
material may be natural or synthetic rubber or plastics. Such areas 11, 12 
and 13 may be joined to the body of the inner shell 1 in various manners. 
However, particular preference is given to bonding. If the shoes 13 are 
formed by hard rubber boots, then the cut soles prevent the wearer from 
sliding on the wet deck. 
As illustrated in FIG. 2, a waterproof fastener 14 is provided on the body 
of the inner shell 1 from the back to both arms for ease of placing on the 
body and ease of removal. Since the stretch material for complete 
waterproofness and the shoes are provided to the neck and both wrists and 
both feet, as mentioned above, in addition to the waterproof fastener 14, 
complete waterproofness is obtained. 
An outer shell 2 comprises a resin coated cloth. Various cloths may be used 
to this end. In the instant embodiment, a nylon cloth is used. By using a 
variety of dyed nylon cloths and exposing them to open view, it is 
possible to obtain a diving wet suit of fashionable design. Since the 
outer shell is resin-coated on the inside, it is tough and serves to 
protect the inner shell. In view of design, it may be required to increase 
the number of regions to be sewn up. Even in this case, however, the 
desired design is obtained by sewing up the outer shell 2 alone with no 
need of any special waterproofing. 
The outer shell 2 includes pads in lap areas 21 and a hip area 22. Such 
pads may be formed of various materials. In the instant embodiment, 
neoprene foam is used. Such pads serve to absorb shocks produced when the 
lap or hip areas strike upon rocks, etc. and protect the inner shell. The 
attachment of said pads to the outer shell 2 is achieved by sewing up 
alone without need of any waterproofing process. When partly reinforcing 
the lap or hip areas of a conventional dry suit of the single structure, 
it was required to apply reinforcements to the body or seal up the sewn 
regions after sewing up for the purpose of waterproofing. However, the 
instant embodiment is simple because waterproofing is achieved by sewing 
up alone. 
The outer shell 2 is provided with an opening 23 extending from the back to 
both arsm, and an area fastener 24 is provided to said opening 23. 
Said inner and outer shells 1 and 2 are provided with holes 31 and 32 for 
mounting valves in the breast and shoulder areas so as to fixedly hold the 
inner and outer shells 1 and 2 between the valves mounted. In this manner, 
the inner and outer shells 1 and 2 are joined together by the valves. 
One area fastener is provided in the vicinity of the waterproof fastener 
attached to the inner shell from the back to both arms, and the other area 
fastener is provided on the outer shell, thereby joining them together. 
That is, as illustrated in FIG. 1, one area fastener 15 is provided in the 
vicinity of the waterproof fastener 14 attached to the inner shell 1 from 
the back to both arms, and the other area fastener 25 is provided on the 
outer shell 2 from the back to both arms, said other area fastener 25 
being engageable with or disengageable from said one area fastener 15 of 
the inner shell 1. 
Since the inner and outer shells 1 and 2 are joined together, the wearer 
can make a dive, while caring nothing for the double structure of the 
inner and outer shells 1 and 2. 
The thus constructed diving dry suit according to the instant embodiment 
may be used in the following manner. 
The inner and outer shells 1 and 2 are put upon each other, and the valves 
are mounted in the associated holes 31 and 32 to fixedly hold the inner 
and outer shells 1 and 2 between the valves. Then, one area fastener 15 
provided in the vicinity of the waterproof fastener 14 of the inner shell 
1 is integrally coupled to the other area fastener 25 provided to the 
outer shell 2 from the back to both arms. Afterwards, the wearer inserts 
his or her body into the dry suit from the opening 23 in the outer shell 2 
and the waterproof fastener 14. Subsequently, the waterproof fastener 14 
and opening 23 are closed up. Finally, cuffs attached to the neck, wrists 
and ankles of the outer shell 2 are put on. 
The diving wet suit constructed as mentioned above is of the 
super-waterproof structure, is not damaged in terms of the waterproof 
structure even when the wearer makes a dive into a reefy area, and is 
photogenic in water. 
Further, since the inner shell body is formed of a non-stretch material, it 
is possible to prevent an increase in the buoyancy of the inner shell due 
to its expansion. 
Still further, since the stretch material for complete waterproofness is 
provided to the neck and both wrists and shoes are provided to both feet 
in addition to the waterproof fastener, complete waterproofness is 
obtained. 
Still further, it is possible to obtain a diving wet suit of fashionable 
design by dyeing the cloth for the outer shell according to various 
designs and exposing it to open view. Since the outer shell is 
resin-coated on the inside, it is tough and serves to protect the inner 
shell. 
It is also understood that since the outer shell can easily be processed 
with no need of waterproofing, fashionable designs can easily be obtained. 
Because the outer shell is replaceable, designs or colors can be changed 
by the replacement of the outer shell alone. The diving wet suit of this 
invention is also economical, since, if damaged, the outer shell can be 
replaced by new one.