JP5961014B2 - Shoulder bag - Google Patents

Description

  The present invention relates to a shoulder bag provided with a pair of shoulder belts.

  Conventionally, a shoulder bag provided with a pair of shoulder belts is known (see, for example, Patent Document 1). The backpack described in Patent Document 1 includes a main body and a pair of shoulder belts provided on the main body. This backpack is designed to be carried on the user's back with the object stored inside the body. Specifically, the user's arm / shoulder is passed between the shoulder belt and the body. .

JP 2002-45233 A

  Here, the backpack can accommodate several items in the main body and is attached in close contact with the shoulder and back, so that many items can be easily carried. However, if a user who carries a bag carrying a large number of items falls into the river or the sea and is submerged, the stored items may be heavy and dangerous.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a shoulder bag that can avoid the risk of drowning even when the user is submerged while carrying the shoulder. There is.

  The present invention is a shoulder bag in which a pair of shoulder belts 3 is provided on a shoulder bag body 1, and a buoyancy part 31 that is accommodated in each shoulder belt 3 in a non-inflated state and expands by supplying gas. The gas supply port 42 to which the gas cylinder 5 for supplying gas to the buoyancy part 31 is attached and the opening means 43 for opening the gas cylinder 5 attached to the gas supply port 42 and supplying the gas are provided. It is characterized by that.

  In the backpack of the present invention having such a configuration, when the plug opening means 43 is operated in a state where the gas cylinder 5 is attached to the gas supply port 42, gas is supplied from the gas cylinder 5 toward the buoyancy part 31, and the buoyancy part 31 expands. Thereby, for example, when a user who carries this backpack is about to be submerged, the plug opening means 43 is activated and the buoyancy part 31 accommodated in the shoulder belt 3 is inflated. Since it floats in the water, the danger of drowning can be avoided.

  Moreover, in this backpack, it is preferable that the backpack main body 1 has a water intake part 17 for taking in water inside.

  According to such a configuration, when the user is submerged, water can be taken into the bag main body 1 through the water intake portion 17. Thereby, even if the buoyancy part 31 expands when the user is submerged, the user's face can be positioned in the air.

  Moreover, in this backpack, it is preferable that the backpack main body 1 has a net-like pocket 18, and the water intake portion 17 is covered by the net-like pocket 18.

  According to such a structure, even if the water intake part 17 is provided in the backpack main body 1, it can be made not conspicuous, and water can be made to flow in into the backpack main body 1.

  In this bag, the shoulder belt 3 is preferably detachably attached to the bag body 1.

  According to such a configuration, it is possible to easily replace the shoulder belt 3 after use after the opening means 43 is activated and the buoyancy portion 31 is expanded. In other words, after the inflating operation, only the shoulder belt 3 can be easily replaced. Therefore, it is possible to replace only the shoulder belt 3 with a new one while continuing to use the shoulder bag body 1 for a long time. As a result, for example, even in the case of an emergency or when the buoyancy unit 31 is expanded due to an erroneous operation, it is possible to replace only the shoulder belt 3 and use it again.

  According to the shoulder bag of the present invention, it is possible to avoid the risk of drowning even when the user is submerged while carrying the shoulder.

It is a backpack of embodiment of this invention, (a) is a perspective view, (b) is principal part sectional drawing of a water intake part. It is a perspective view from another angle of the shoulder bag of the said embodiment. It is a perspective view of the state which removed the shoulder belt of the shoulder bag of the embodiment. It is a perspective view in which the shoulder belt of the shoulder bag of the said embodiment is in an open state. It is explanatory drawing of the state by which the gas cylinder was attached to the action | operation part of the backpack bag of the said embodiment. It is a front view of the state which the buoyancy part of the backpack bag of the said embodiment expanded. It is a disassembled perspective view just before mounting | wearing the normal shoulder belt of the shoulder bag of the said embodiment. (A) is a figure of the state which the buoyancy part of the backpack of this embodiment expanded, (b) is a figure of the state which the buoyancy part of the reference example expanded.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  As shown in FIG. 1, the backpack of this embodiment includes a backpack main body 1 and a pair of shoulder belts 3. The backpack main body 1 can accommodate objects therein. The pair of shoulder belts 3 is provided on the bag body 1. The backpack of this embodiment is constituted by a rucksack.

  The bag main body 1 is formed of a water-impermeable base. The water-impermeable substrate prevents water from passing into the bag body 1. A water-impermeable substrate is flexible. Examples of the water-impermeable substrate include nylon and polyvinyl chloride. Thereby, the shoulder bag main body 1 has waterproofness. The shoulder bag body 1 is formed in a bag shape.

  As shown in FIG. 2, the backpack body 1 includes a first storage portion 11 and a second storage portion 12. The 1st accommodating part 11 and the 2nd accommodating part 12 are opened upwards. The first storage part 11 and the second storage part 12 are arranged side by side in the front-rear direction. The first storage unit 11 and the second storage unit 12 are partitioned inside the bag body 1. In other words, the 1st storage part 11 and the 2nd storage part 12 are not mutually connected inside. A fastener portion 14 is provided in the opening above the first storage portion 11 and the second storage portion 12. The fastener part 14 connects the opening edges which oppose. The fastener portion 14 includes a runner 15. By moving the runner 15 along the opening, the openings of the first storage unit 11 and the second storage unit 12 are opened and closed. Two runners 15 are provided. When the fastener portion 14 is closed, a slight gap is formed in the portion where the runner 15 is abutted.

  The bag body 1 has a third storage portion 13. The third storage portion 13 is provided on both left and right side portions of the bag body 1. The third storage portion 13 is configured by a mesh pocket 18. The net-like pocket 18 opens upward. The mesh pocket 18 has a mesh body 19. The outer edge of the net-like body 19 is sewn to the outer side surface of the shoulder bag body 1 at a portion excluding the upper side. The net 19 is permeable to water. In other words, the reticulated pocket 18 is permeable to water. For example, a small plastic bottle or a water bottle is accommodated in the mesh pocket 18.

  The backpack of this embodiment has the connection part 2 as FIG. 3 shows. Here, the shoulder bag body 1 has a back surface portion 16. The back surface part 16 contacts the user's back. The connecting portion 2 is attached to detachably attach the shoulder belt 3. The connecting portion 2 is interposed between the back surface portion 16 and the shoulder belt 3. The connecting portion 2 includes a first connecting body 21, a second connecting body 22, a third connecting body 23, and a fourth connecting body 24. A pair of the first coupling bodies 21 is provided. The first coupling body 21 is fixed to the upper part of the back surface portion 16. The 1st coupling body 21 is spaced apart in the left-right direction. The second connecting body 22 is fixed to the upper end portion of the shoulder belt 3. The second connecting body 22 is detachably held by the first connecting body 21. A pair of third connecting bodies 23 is provided. The third connecting body 23 is fixed to the lower portion of the back surface portion 16. The 3rd connection body 23 is spaced apart in the left-right direction. The fourth connecting body 24 is fixed to the lower end portion of the shoulder belt 3. The fourth connecting body 24 is detachably held by the third connecting body 23. The connection part 2 of this embodiment is resin-molded by injection molding or cast molding, for example.

  The shoulder belt 3 is detachably attached to the back surface portion 16 of the bag body 1 through the connecting portion 2. The shoulder belt 3 is provided with a buoyancy portion 31 within its thickness. The buoyancy portion 31 of the shoulder belt 3 expands and functions as a floating bag when immersed in water. As a result, the shoulder belt 3 gives buoyancy to the user wearing the backpack.

  As shown in FIG. 4, the shoulder belt 3 includes a buoyancy portion 31 and an operation portion 4. The buoyancy part 31 is accommodated in the shoulder belt 3 in an unexpanded state. The operating unit 4 operates the attached gas cylinder 5 to supply gas to the buoyancy unit 31.

  The shoulder belt 3 is deformed between the expanded state and the normal state. The normal state is defined as a belt-like state (see FIG. 1) in which the shoulder belt 3 is thinly folded. The expanded state is defined as a state in which the shoulder belt 3 in the normal state is opened (see FIG. 4). The shoulder belt 3 includes a front chest portion 33 and a neck portion 34. The chest front part 33 has a length in the vertical direction. A pair of left and right breast front portions 33 are provided. The chest front portions 33 are parallel to each other. The neck 34 connects the upper ends of the chest front 33. When worn by a person, the neck 34 is located at the rear of the person's neck. The shoulder belt 3 is substantially U-shaped downward.

  As shown in FIG. 4, the shoulder belt 3 in the expanded state includes an endothelial body 35 and an outer skin body 36. Endothelial body 35 and outer skin body 36 are laminated. The outer peripheral edge portions of the endothelial body 35 and the outer skin body 36 are welded to each other. The endothelial body 35 is located in front of the outer skin body 36 in the expanded state. The endothelial body 35 is located within (inner side) the thickness of the shoulder belt 3 in a normal state. The outer skin 36 is located on the rear side of the endothelial body 35 in the expanded state. The outer skin 36 is located outside the shoulder belt 3 in a normal state.

  In the normal state, the chest front portion 33 of the shoulder belt 3 is folded at both ends in the width direction of the chest front portion 33 in the expanded state to the width center side of each chest front portion 33. Then, both edge portions in the width direction are fastened with hook-and-loop fasteners 37. In the normal state, the upper end of the neck 34 of the shoulder belt 3 is folded back downward. And the both edge parts of the upper end and the lower end are fastened by the hook-and-loop fastener 37.

  The shoulder belt 3 is provided with a support belt 39 as shown in FIG. The support belt 39 is located on the back side of the user. The support belt 39 forms a portion through which an arm or a shoulder passes with the front chest portion 33. The support belt 39 connects the neck part 34 and the lower ends of both chest front parts 33 and has an inverted T shape.

  The buoyancy part 31 is accommodated between the endothelial body 35 and the outer skin body 36. The buoyancy unit 31 expands by taking the gas supplied from the gas cylinder 5 into the inside through a gas inlet (not shown). The buoyancy part 31 of the present embodiment is constituted by a floating bag body 310. The floating bag 310 is laminated on the inner skin 35 and the outer skin 36 in an unexpanded state. The float bag 310 is folded together with the endothelial body 35 and the outer skin body 36. Thereby, the float bag 310 is accommodated and disposed within the thickness of the shoulder belt 3 in a normal state.

  The operating unit 4 is configured to operate the attached gas cylinder 5 to supply air to the buoyancy unit 31. When the operation unit 4 is submerged, it detects water and automatically opens the gas cylinder 5. The operating unit 4 has a manual operation unit 41. The manual operation unit 41 is configured such that the user can manually open the gas cylinder 5 forcibly. In other words, the manual operation unit 41 can operate the buoyancy unit 31 regardless of whether or not it is submerged.

  As shown in FIG. 4, the operation unit 4 is provided on one front chest portion 33 of the pair of shoulder belts 3. The operating part 4 is provided within the thickness of the shoulder belt 3. The operating portion 4 of the present embodiment is covered with a cover 38 when the shoulder belt 3 is in the expanded state.

  As shown in FIG. 5, the operation unit 4 includes a gas supply port 42, a plug-opening means 43, a manual operation unit 41, and a gas blowing port 44. A small gas cylinder 5 can be attached to the gas supply port 42. The plug opening means 43 opens the gas cylinder 5 attached to the gas supply port 42 and starts supplying gas. The gas outlet 44 opens in a direction perpendicular to the longitudinal direction of the gas cylinder 5. The gas outlet 44 communicates with the gas supply port 42. The operating part 4 is fixed to the endothelial body 35 in a state where the gas outlet 44 communicates with the gas inlet of the buoyancy part 31.

  As shown in FIG. 5, the main part of the plug-opening means 43 is composed of an operating part main body 45. The operation part main body 45 is formed in a cylindrical shape. The operation part main body 45 has a gas supply port 42 on one end side. The plug opening means 43 includes a needle part (not shown), a pressing body 46, an urging body 47, and a cap body 48. The needle part is provided inside the operating part main body 45. The needle portion is slidable in the cylinder axis direction. The pressing body 46 presses the needle part toward the gas cylinder 5, thereby perforating and opening the plug part of the gas cylinder 5. The urging body 47 urges the pressing body 46 toward the gas cylinder 5 side. The biasing body 47 is constituted by a coil spring, for example. The cap body 48 accommodates the urging body 47 therein. The cap body 48 is attached to the operating part main body 45.

  The plug opening means 43 has a support 49. The support 49 dissolves when immersed in water. The support 49 is fixed to the opening on the side opposite to the gas supply port 42 of the operating part main body 45. The support body 49 is interposed between the needle portion and the pressing body 46, thereby blocking the urging force of the pressing body 46 against the needle portion.

  When the gas cylinder 5 is attached to the gas supply port 42 of the operating unit 4 and the operating unit 4 is submerged, the support 49 is dissolved in water. Then, the movement restriction by the support body 49 is released from the needle portion pressed by the urging body 47, moves to the gas cylinder 5 side according to the urging force, and the plug portion provided at one end in the longitudinal direction of the gas cylinder 5. Open the plug.

  The opened gas cylinder 5 ejects a gas sealed inside at high pressure, and supplies the gas to the buoyancy unit 31 through the gas supply port 42, the gas blowing port 44, and the gas inlet formed in the endothelial body 35. To do.

  Thereafter, as shown in FIG. 6, the buoyancy unit 31 to which the gas has been supplied fills the front chest portion 33 and the neck portion 34 with the gas. Thereby, the buoyancy part 31 expand | swells so that a user's upper body may be covered. At this time, as the buoyancy portion 31 expands, the buoyancy portion 31 expands while peeling off the hook-and-loop fastener 37 secured in the folded state on the shoulder belt 3, and expands to the full. In the backpack of this embodiment, the buoyancy unit 31 spreads in front of the user's chest and supports the back of the neck, while the backpack main body 1 is positioned on the back of the user, and the user's face is Balance on the water to get on the surface.

  By the way, in such a backpack bag, when the buoyancy part 31 expand | swells and floats in water, we are anxious about the following problem. When the user is submerged and the buoyancy part 31 is inflated, the bag body 1 is also filled with air. At this time, buoyancy is generated by the buoyancy part 31 and the bag body 1 on the back. Therefore, due to the buoyancy between the buoyancy part 31 and the shoulder bag body 1, as shown in FIG. 8B, the chest front part 33 side faces the underwater side. Thereby, the problem that a user's face will be submerged in water can be considered.

  In order to solve this problem, the shoulder bag of the present embodiment has a water intake portion 17 as shown in FIG. The water intake unit 17 takes in water into the bag body 1. More specifically, the water intake part 17 communicates the inside and outside of the bag body 1. The water intake part 17 may be, for example, a through-hole penetrating the inside or outside, or may be formed of a material that transmits water in order to take water into the bag body 1.

  The water intake part 17 is provided in several places. If it demonstrates in detail, the water intake part 17 is provided in the side of the both sides of the shoulder bag main body 1. FIG. The water intake part 17 is covered with a mesh body 19 of the third storage part 13. In other words, the water intake portion 17 is covered with the mesh pocket 18.

  When the user who wears the backpack of this embodiment is submerged, the buoyancy unit 31 starts to expand. Simultaneously with this submergence, water is taken into the bag body 1 through the water intake 17. Then, the air in the bag body 1 is carried out from the gap between the runners of the fasteners that close the openings of the first storage portion 11 and the second storage portion 12. Gradually, the bag body 1 is filled with water. Thereby, the buoyancy generated in the bag body 1 can be reduced. As a result, as shown in FIG. 8, when the buoyancy part 31 is inflated, the backpack body 1 side can be positioned on the underwater side, and the user's face can be exposed to the air.

  In addition, since the bag body 1 is formed of a water-impermeable base, it can exhibit a waterproof effect on the internal contents during normal use. Generally, when the backpack body 1 is formed of a water-impermeable base, water does not easily flow into the backpack body 1 when submerged, so that the backpack body 1 side is unlikely to sink. About this point, since the backpack bag of this embodiment is provided with the water intake part 17 in the backpack main body 1, the backpack main body 1 can be effectively sunk. That is, the backpack of this embodiment can protect the stored items from water or the like during normal use, and the backpack main body 1 can be positioned on the underwater side when submerged.

  Moreover, the water intake part 17 is covered with the mesh body 19 of the third storage part 13. In other words, the water intake portion 17 is covered with the mesh pocket 18. Thereby, the water intake part 17 can be made inconspicuous. Thereby, the designability of a backpack can also be improved. Moreover, since the mesh pocket 18 transmits water, even if the water intake portion 17 is covered with the mesh pocket 18, the water can be reliably carried into the bag body 1 while being carried on the back.

  Moreover, the manual operation part 41 is provided in the action | operation part main body 45, and the gas cylinder 5 is compulsorily opened by a user's operation. The manual operation unit 41 of the present embodiment is configured by a string part 410 whose end is exposed from the lower end part of the shoulder belt 3, and the user pulls the string part 410 so that the needle part of the operating unit 4 is attached to the gas cylinder 5. The gas cylinder 5 is slid to the side and the gas cylinder 5 is opened.

  As shown in FIG. 1, the shoulder belt 3 has a connecting portion 6 that connects lower ends of the front chest portion 33 to each other. The connection part 6 of this embodiment is connected via a detachable buckle part 61. The connecting portion 6 prevents the shoulder bag from coming off the user's body even when the shoulder belt 3 is inflated.

  By the way, the shoulder belt 3 has the blowing pipe 70 attached to the endothelial body 35, as FIG. 4 shows. The blowing pipe 70 protrudes upward along the shoulder belt 3 and is connected to the buoyancy part 31. The blow pipe 70 is configured so that the user can blow up and blow air into the buoyancy unit 31. The blow pipe 70 is provided with a check valve (not shown) that allows a gas flow from the outside toward the buoyancy unit 31 and prevents the reverse. The blowing pipe 70 is used when the user additionally blows air to fully expand the buoyancy part 31 expanded by the gas from the gas cylinder 5 when the buoyancy part 31 is not fully expanded.

  The shoulder belt 3 has a reflecting portion 71 attached to the endothelial body 35, and the reflecting portion 71 is exposed in an expanded state. Further, the shoulder belt 3 has a whistle 72 accommodated in a pocket of the endothelial body 35.

  The gas cylinder 5 is filled with an inert gas such as carbon dioxide. As the inert gas, helium gas may be used instead of carbon dioxide, or an inert gas such as carbon or oxygen may be used.

  The shoulder bag having such a configuration is mounted in such a manner that the shoulder belt 3 attached to the shoulder bag main body 1 is hung on the user's shoulder and the back portion 16 of the shoulder bag main body 1 is in close contact with the user's back. . Even if the user who carries the bag of the backpack of this embodiment accidentally falls into a river or the sea or is immersed in water by being exposed to a tsunami, the shoulder belt 3 is immersed in water. The buoyancy part 31 is inflated, and as a result, the shoulder belt 3 of the shoulder bag acts as a floating bag, so that it can be prevented from dripping.

  In addition, the shoulder bag 3 of the present embodiment is such that the shoulder belt 3 is detachable from the bag body 1, so that the opening means 43 is activated and the buoyancy part 31 is inflated. Can be replaced. In other words, after the inflating operation, only the shoulder belt 3 can be easily replaced. Therefore, it is possible to replace only the shoulder belt 3 with a new one while continuing to use the shoulder bag body 1 for a long time. As a result, for example, even in the case of an emergency or when the buoyancy unit 31 is expanded due to an erroneous operation, it is possible to replace only the shoulder belt 3 and use it again.

  In addition, if a heavy load is accommodated in the bag, the weight is too large for the buoyancy of the buoyancy portion 31 of the shoulder belt 3 and the buoyancy acting on the user is weakened. Can also happen. However, since the shoulder bag 3 of the backpack of this embodiment is detachable from the backpack main body 1, the backpack main body 1 can be separated from the shoulder belt 3. The shoulder belt 3 thus separated holds the user with the neck portion 34 and the support portion 39. As a result, the user can use the shoulder bag more safely.

  Further, as shown in FIG. 7, the shoulder bag of the present embodiment can be replaced with a normal shoulder belt 8 that does not have the buoyancy portion 31. Thus, for example, when the user uses a normal shoulder belt 8 in a place without a river or the sea, the user uses the buoyancy part 31 in a place where there is a river or the sea. It is possible to use the shoulder belt 3 depending on the situation, for example, by using the shoulder belt 3 provided, and the usability is improved.

  The backpack of the present embodiment is constituted by a rucksack. However, in the present invention, the bag used on the back only needs to have a pair of shoulder belts, for example, a knapsack or a school bag. It may be.

  Further, the mechanism of the plug opening means 43 is not limited to the structure of the above embodiment.

DESCRIPTION OF SYMBOLS 1 Back bag body 16 Back surface part 17 Water intake part 18 Net-like pocket 19 Net-like body 2 Connection part 3 Shoulder belt 31 Buoyancy part 310 Floating bag body 33 Chest front part 34 Neck part 4 Actuation part 41 Manual operation part 42 Gas supply port 43 Opening Means 5 Gas cylinder 6 Connection part 61 Buckle part

Claims (2)

A shoulder bag in which a pair of shoulder belts is provided on the shoulder bag body,
A buoyancy portion that is accommodated in each shoulder belt in an unexpanded state and expands by supplying gas;
A gas supply port to which a gas cylinder for supplying gas to the buoyancy part is attached;
An opening means for opening the gas cylinder attached to the gas supply port and supplying the gas ,
The carrying bag body is
A water intake portion for taking water into the bag body;
A net-like pocket covering the water intake part;
A shoulder bag characterized by having a bag. The backpack according to claim 1 , wherein the shoulder belt is detachably attached to the backpack main body .

Images