Backrest provided with a support for fastening a weight pocket

Abstract

A backrest for a scuba diver comprising a shaped plate supporting at least one air cylinder, at least a first strap comprising an upper right portion configured to fit around the scuba diver's right shoulder, an upper left portion configured to fit around the scuba diver's left shoulder and a lower portion configured to fit around the scuba diver's abdomen, wherein the shaped plate has a first right slide-through element and a first left slide-through element adapted to connect the upper right portion and the upper left portion, respectively, to the lower portion of the first strap, at least one weight pocket constrained to the lower portion of the first strap, wherein there is provided an anti-torsion means connecting the at least one weight pocket to the shaped plate and configured to oppose the torsion of the first strap in proximity to at least one of the first slide-through elements.

Claims

1. A backrest for a scuba diver comprising: a shaped plate supporting at least one air cylinder, a first strap comprising an upper right portion configured to fit around the scuba diver's right shoulder, an upper left portion configured to fit around the scuba diver's left shoulder and a lower portion configured to fit around the scuba diver's abdomen, wherein said right upper portion, left upper portion, and lower portion are a single continuous strap, said shaped plate comprising a first right slide-through element and a first left slide-through element, adapted to connect said upper right portion and said upper left portion, respectively, to said lower portion of said first strap, a weight pocket that contains a weight, said weight pocket being constrained to said lower portion of said first strap, comprising an anti-torsion connector directly connecting said at least one weight pocket to said shaped plate and configured to oppose the torsion of said first strap in proximity to at least one of said first slide-through elements, wherein said anti-torsion connector comprises: at least one fastening block fastening said weight pocket to said shaped plate, and at least one connecting piece connecting said weight pocket to said at least one fastening block.

2. The backrest for a scuba diver according to claim 1, wherein said weight pocket has at least a second slide-through element constraining to said first strap.

3. The backrest for a scuba diver according to claim 1, wherein said at least one fastening block is removably fastened to said shaped plate.

4. The backrest for a scuba diver according to claim 3, wherein said shaped plate is removably fastened with bolts.

5. The backrest for a scuba diver according to claim 1, wherein said at least one fastening block is configured not to interfere with said first right slide-through element or with said first left slide-through element of said first strap.

6. The backrest for a scuba diver according to claim 1, wherein said at least one connecting piece has one side fastened to said at least one fastening block, wherein the length of said side is not less than the width of said first strap.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Additional features and advantages of the invention will become more apparent from the description of a first preferred but not exclusive embodiment of the backrest for a scuba diver according to the invention, illustrated by way of non-limiting example in the appended drawings, in which:

(2) FIG. 1 shows an overall front view of the backrest, the constraining strap and the weight pocket;

(3) FIG. 2 shows an overall rear view of the backrest, the constraining strap and the weight pocket;

(4) FIG. 3 shows a detailed front view of the left wing of the backrest, the fastening block and the weight pocket;

(5) FIG. 4 shows a detailed rear view of the left wing of the backrest, the fastening block and the weight pocket;

(6) FIG. 5A shows a front view of the fastening block for the weight pocket; and

(7) FIG. 5 B shows a detailed section AA of the fastening block for the weight pocket.

DETAILED DESCRIPTION

(8) The following detailed description makes reference to the appended drawings, which form a part thereof.

(9) In the drawings, similar reference numbers typically identify similar components, unless the context indicates otherwise.

(10) The illustrative embodiments described in the detailed description and in the drawings are not intended to be limiting.

(11) Other embodiments may be used and other modifications may be introduced without departing from the spirit or the scope of the subject matter presented herein.

(12) The aspects of the present description, as generally described in the present context and illustrated in the figures, may be arranged, replaced, combined and designed in a wide variety of different configurations, which are all explicitly envisaged and are part of this description.

(13) With reference to the above-mentioned figures, they show a backrest for a scuba diver denoted in its entirety by the reference number 1.

(14) The backrest for a scuba diver 1 comprises a shaped plate 2 for supporting at least one air cylinder (not shown in the drawings), at least a first strap 3 comprising an upper right portion 3A1 configured to fit around the scuba diver's right shoulder, an upper left portion 3A2 configured to fit around the scuba diver's left shoulder and a lower portion 3B configured to fit around the scuba diver's abdomen, a first right slide-through element 2D and a first left slide-through element 2S, adapted to connect the upper portions 3A1 and 3A2, respectively, to the lower portion 3B of the first strap 3.

(15) The upper portions 3A1 and 3A2 of the first strap 3 are disposed through specific pass-through elements 2D and 2'S of the shaped plate 2 and are fastened to the shaped plate 2 preferably by means of one or more specific bolts (not shown) tightened in one or more through-holes 30 of the shaped plate 2.

(16) The backrest for a scuba diver 1 comprises at least one weight pocket 10 constrained to the lower portion 3B of the first strap 3.

(17) The weight pocket 10 is typically made of flexible textile materials and on the rear has one or more second slide-through elements 11 by means of which it is constrained to the first strap 3.

(18) Conveniently, innovatively and advantageously according to the present invention, there is provided an anti-torsion means for the lower portion 3B of the first strap 3.

(19) The anti-torsion means connects the weight pocket 10 to the shaped plate 2 and is configured to oppose the torsion of the first strap 3 caused by the weight of the weight pocket 10 on the first strap 3 in proximity to at least one first slide-through element: in the drawings the first left through element 2S is typically illustrated and the description refers to that zone; symmetrically, and/or additionally, the drawings and description may refer to the right zone.

(20) Conveniently, innovatively and advantageously according to the present invention, the anti-torsion means comprises at least one fastening block 20, constrained respectively to the shaped plate 2 and the weight pocket 10.

(21) The fastening block 20 has a preferably removable means of constraint to the shaped plate so that it can be supplied together with the weight pocket 10 as a kit for adaptation to backrests already on the market.

(22) The constraint of the fastening block 20 to the shaped plate 2 is typically achieved with two small bolts 21 A and 21 B that engage in mating holes 22 A and 22 B in the lower wing of the shaped plate 2.

(23) The constraint of the fastening block 20 to the weight pocket 10 is typically achieved with two small bolts 23 A and 23 B that engage in one side of a suitable connecting piece 12 protruding from the weight pocket 10: the connecting piece 12 can be flexible or adequately rigid or stiffened so as to limit the suitable degree of freedom of the weight pocket 10 for adaptation to the scuba diver's hip.

(24) Conveniently, the side of the connecting piece 12 fastened to the fastening block 20 has a length that is no less than the width of the first strap 3.

(25) Conveniently, the fastening block 20 is configured not to interfere with the first left slide-through element 2S.

(26) The fastening block 20 in particular has a flat longitudinal base 20 A having at one end the holes for the bolts 23 A, 23 B for fastening to the piece 12 and at the longitudinally opposite end the holes for the bolts 21 A, 21 B for fastening to the backrest, provided on a thickened portion 20 B of the longitudinal base 20 A which is on top of an orthogonal terminal flap 40 of the backrest.

(27) The operation of a backrest for a scuba diver according to the invention appears clear from what is described and illustrated and, in particular, is substantially the following.

(28) The first strap 3 is engaged at least in the first left slide-through element 2S of the shaped plate 2 and then in the second slide-through elements 11 of the weight pocket 10.

(29) The weight pocket 10 is constrained at the connecting piece 12 to the fastening block 20 rigidly constrained to the shaped plate 2.

(30) The fastening block 20 is configured not to interfere with the first left slide-through element 2S of the first strap 3.

(31) The weight of the weight pocket 10 is substantially transferred to the shaped plate 2 by means of the fastening block 12.

(32) The weight of the weight pocket 10 does not act, therefore, on the first strap 3 through the second slide-through elements 11, and thus does not apply a torsion action on the first strap 3.

(33) The first strap 3 remains free to slide in the first slide-through element 2S, also when the weights are loaded in the weight pocket 10, enabling the scuba diver to simply and effectively adjust the first strap 3 around his or her body while donning and/or doffing the backrest.

(34) It has been ascertained in practice that a backrest for a scuba diver according to the invention is particularly advantageous for opposing the torsion of the weight pocket on the single constraining strap in the abdominal position.

(35) A further advantage of the invention is that of providing a backrest for a scuba diver in which the adjustment and/or the release of the single strap constraining it in the abdominal position is extremely simple and not hindered by torsion applied by the weight pocket on the strap itself.

(36) A backrest for a scuba diver thus conceived is susceptible of numerous modifications and variants, all falling within the scope of the inventive concept as defined in the claims; furthermore, all of the details are replaceable by technically equivalent elements.

(37) The materials used, as well as the dimensions, may in practice be any whatsoever, according to needs and the state of the art.