Shoulder strap for supporting back loads, device for carrying back loads, and in particular buoyancy compensator, or the like

A carrying device comprising:

• a combination of at least one shoulder strap, at least one supporting structure, and at least one load,
• wherein the at least one shoulder strap includes a strip-shaped element comprising:
• a part configured to overlap at least one portion of a shoulder area and one portion of a front side of a torso,
• wherein said part has an arched profile with a first concave edge, which is curved in a single direction of curvature defined by at least one first center and at least one first radius of curvature, and further has an opposite convex side which includes, in an intermediate area between two opposite ends of the strip-shaped element, a side widening transverse with respect to a longitudinal extent of the strip-shaped element, the side widening being connected to each of said two opposite ends of the strip-shaped element with a first and a second section of second concave edge curved in a direction of curvature opposite to the direction of curvature of the first concave edge, the second curved edge has at least one second center of curvature and at least one second radius of curvature, and
• wherein dimensions of the side widening, a shape of the first and the second concave sections connecting the side widening to the opposite ends of the strip-shaped element, and a position of the side widening with reference to the opposite ends of the strip-shaped element are all selected so that the side widening is configured to rest on a thorax area below a cervicothoracic imaginary line and above a breast, and
• wherein a first section between said widening and a first one of the two opposite ends overlaps both a part above the cervicothoracic imaginary line and at least part of a shoulder, and a second section of the strip-shaped element between the side widening and a second one of the two opposite ends overlaps a side area of the thorax, the breast being positioned in an area next to the second concave edge connecting the side widening to a corresponding one of the two opposite ends, the side widening being provided at a side of the strip-shaped element facing a sternal area or a mid-sagittal plane of a user's body, and
• wherein the opposite ends of the strip-shaped element are attached at points distant from each other of the supporting structure.

A buoyancy compensator or stabilizer comprising:

• a watertight envelope or bag provided with a connecting system adapted to connect to a user's body;
• an inflating system adapted to inflate the watertight envelope or bag and to be actuated by control and supplied with gas from a gas cylinder;
• a discharging system adapted to discharge the gas and comprising one or more control-operated outlet valves and optionally one or more automatic gas-release valves;
• and
• a frame adapted to secure one or more air cylinders containing air or other mixture of respirable gases,
• further comprising a carrying device that includes:
• a combination of at least one shoulder strap, at least one supporting structure, and at least one load,
• wherein the at least one shoulder strap includes a strip-shaped element comprising:
• a part configured to overlap at least one portion of a shoulder area and one portion of a front side of a torso,
• wherein said part has an arched profile with a first concave edge, which is curved in a single direction of curvature defined by at least one first center and at least one first radius of curvature, and further has an opposite convex side which includes, in an intermediate area between two opposite ends of the strip-shaped element, a side widening transverse with respect to a longitudinal extent of the strip-shaped element, the side widening being connected to each of said two opposite ends of the strip-shaped element with a first and a second section of second concave edge curved in a direction of curvature opposite to the direction of curvature of the first concave edge, the second curved edge has at least one second center of curvature and at least one second radius of curvature, and
• wherein dimensions of the side widening, a shape of the first and the second concave sections connecting the side widening to the opposite ends of the strip-shaped element, and a position of the side widening with reference to the opposite ends of the strip-shaped element are all selected so that the side widening is configured to rest on a thorax area below a cervicothoracic imaginary line and above a breast, and
• wherein a first section between said widening and a first one of the two opposite ends overlaps both a part above the cervicothoracic imaginary line and at least part of a shoulder, and a second section of the strip-shaped element between the side widening and a second one of the two opposite ends overlaps a side area of the thorax, the breast being positioned in an area next to the second concave edge connecting the side widening to a corresponding one of the two opposite ends, the side widening being provided at a side of the strip-shaped element facing a sternal area or a mid-sagittal plane of the user's body, and
• wherein the opposite ends of the strip-shaped element are attached at points distant from each other of the supporting structure.