Tabata Co., Ltd.

Kenji Kawana

Haruo Kawashima

Minoru Takeuchi

Seishiro Urabe

Masaji Fujiwara

A buoyancy compensating jacket is provided on a waist portion with a pocket having a first flap, a pouch having a flat cord adapted to be inserted into and taken out from the pocket with a weight packed into the pouch. As a guide means for the flat cord, at least one of a substantially C-shaped guide ring provided at a distal end of the first flap substantially in the vertically middle and a groove formed on an outer surface of the pocket and/or an inner surface of the first flap substantially in the vertically middle.

Buoyancy compensating jacket

A diving jacket includes a back-plate shoulder belts and a waist belt The waist belt includes a pair of belt members each having a circumferentially rear end region is fixed to an associated connector plate made of a material harder than the belt and disposed between the rear end region and the back-plate A lower end region of the shoulder bent also is fixed to the associated connector plate

Diving jacket

A diving jacket having a strap extending from one of paired shoulder regions to the other of the shoulder regions via an upper end of the jacket . The strap has its opposite ends fixed to the shoulder regions and the length of the strap is adjustable in at least one of the shoulder regions

A buoyancy regulator for diving includes a cylinder band for fixation of an air cylinder. The cylinder band comprises a belt-like part and a buckle which is formed with a plurality of band insertion slits arranged in a longitudinal direction of the cylinder band. Each pair of side walls respectively lying on both sides of each of the insertion slits is marked with the same letters indicating a sequence in which the belt-like part should be inserted through the buckle.

Buoyancy regulator for diving

Swim fins includes an instep of a foot pocket which is provided with a plurality of ribs extending forward from the vicinity of an opening for foot insertion and grooves each defined between each pair of the adjacent ribs and extending forward. The instep is thinner along the grooves than along the ribs.

Swim fins

A diving jacket includes a back-plate and a pair of waist belt members respectively having circumferentially rear end regions fixed to the back-plate by a means of associated connector plates . Rear end regions of the respective connector plates are formed with a plurality of dovetail tenons or a plurality of dovetail grooves arranged in vertical direction of the connector plates so as to extend in parallel one to another and the back-plate is formed with much more dovetail grooves or dovetail tenons than those formed in the connector plates so as to be operatively associated with the dovetail tenons or dovetail grooves of the connector plates , respectively.

A buoyancy compensator jacket includes a cushion pad lying inside a backplate of the jacket and the cushion pad is water-impervious on its surface and formed in a plurality of regions with dome-shaped swellings being convex toward the back of a wearer. The jacket including such cushion pad can prevent water permeation into the pad from occurring and a weight of the pad from increasing due to the water permeation during diving.

Buoyancy compensator jacket for diver

A diving snorkel provided in the proximity of at least one of an upper opening and a mouthpiece with at least one partition extending from an inner wall of a snorkel conduit and also extending longitudinally of the conduit so as to compartmentalize the conduit in its circumferential direction, and thereby enable undesirable inflow of water to be obstructed as effectively as possible and enable efficient purging of water which enters into the snorkel.

Diving snorkel

A snorkel which includes a main conduit having an upper opening as well as a lower opening and a branch conduit branched from the main conduit. The branch conduit is formed at its top with a mouthpiece and a proximal end of the branch pipe is introduced into the main conduit, then curved toward the upper opening, and thereby eliminates swimmer physical fatigue due to purge diving use of the snorkel.

A bottom of a mouthpiece 2 of a snorkel comprises a first base plate 16 having through-holes 22 for drainage and against which a non-return valve 7 bears from the outside, second base plates 17 spaced from the first base plate 16 toward a top of the snorkel so as to cover the through-holes and supports 18 extending between the first plate 16 and each of the second base plates 17. The interior of the mouthpiece 2 drainably communicates with the exterior thereof through openings defined between the first base plate 16 and each of the second base plates 17 and the through-holes 22, when the non-return valve 7 is opened.

Growing community of inventors

Tokyo, Japan

Kenji Kawana