Chest belt

Abstract

To improve the feeling of wearing a chest belt.SOLUTION: A chest belt 100 that connects a pair of shoulder belts 61, 62 at the chest includes a pair of detachable buckles 20, 21, and a pair of connecting belts 3, 5 that connects the pair of buckles 20, 21 to the pair of shoulder belts 61, 62. The connecting belts 3, 5 are made of a flexible material with approximately rectangular binding rings 31, 51 integrally formed at one end of flat belts 30, 50 having a flat cross section, and after the other end of the flat belts 30, 50 is folded back, are inserted through the binding rings 31, 51 to form first loops 320, 520. And further the other end of the flat belts 30, 50 is folded back, the connecting belts are inserted into the binding rings 31, 51 to form second loops 321, 521 on the opposite side of the first loops 320, 520, such that either the first loops 320, 520 or the second loops 321, 521 are engaged with the shoulder belts 61, 62, the other engaging with the buckles 20, 21.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a chest belt, and more particularly to an improvement in a chest belt that connects a pair of shoulder belts together at the chest. [Background technology]

[0002] A chest belt that connects a pair of shoulder belts attached to a backpack at the chest has been known for some time (for example, see Patent Document 1). The chest belt described in Patent Document 1 has a pair of belts attached to both sides of a detachable buckle unit, and clips are attached to the ends of the pair of belts for connecting to the shoulder belts.

[0003] Conventional chest belts are attached to shoulder belts using clips, tri-glide fasteners, buckles, etc. These connecting members are made of hard materials such as metal or resin, and placing such hard materials near the shoulder belt presses the hard material against the user's chest, resulting in a poor fit and a risk of injury to the user in the event of a fall, which reduces safety. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Utility Model Registration No. 3221810 Summary of the Invention [Problem to be solved by the invention]

[0005] The present invention has been made in view of the above circumstances, and aims to improve the wearing comfort of chest belts, improve the safety of chest belts, and provide a chest belt that can be attached to shoulder belts without using hard materials. [Means for solving the problem]

[0006] A chest belt according to a first embodiment of the present invention is a chest belt that connects a pair of shoulder belts around the chest, and comprises a pair of detachable buckles and a pair of connecting belts that connect the pair of buckles to the pair of shoulder belts. The connecting belts are made of a flexible material, with a flat belt having a flat cross section and an approximately rectangular binding ring integrally formed at one end of the connecting belt. The other end of the flat belt is folded back and inserted into the binding ring to form a first loop, and then the other end of the flat belt is folded back and inserted into the binding ring to form a second loop on the opposite side to the first loop. One of the first loop and the second loop engages with the shoulder belt, and the other engages with the buckle.

[0007] By adopting this configuration, a pair of buckles can be connected to a pair of shoulder belts without using hard members such as clips, tri-lights, or buckles near the shoulder belts. This eliminates the discomfort of hard members being pressed against the chest, improving the wearing comfort. Furthermore, there is no risk of the user being injured by hard members in the event of a fall, improving safety.

[0008] In addition to the above configuration, the chest belt according to a second embodiment of the present invention is configured such that the through hole of the binding ring has an outer opening on the one end side and an inner opening on the other end side, the first loop is formed by inserting the flat belt through the inner opening, and the second loop is formed by inserting the flat belt through the outer opening.

[0009] By adopting such a configuration, the connecting belt is not significantly twisted or bent, and therefore, deterioration in wearing comfort can be prevented.

[0010] In addition to the above configuration, a chest belt according to a third embodiment of the present invention includes a stopper consisting of a protrusion formed on the main surface of the flat belt, which is engaged with the binding ring to maintain the second loop.

[0011] By employing such a configuration, it is possible to prevent the second loop from being opened against the user's will and the buckle from falling off.

[0012] In addition to the above configuration, a chest belt according to a fourth embodiment of the present invention has a stopper having an inclined surface in which the height of the one end side is higher than the height of the other end side.

[0013] By adopting such a configuration, the assembly work can be facilitated while maintaining the function as a stopper.

[0014] In addition to the above configuration, a chest belt according to a fifth embodiment of the present invention is configured such that two or more of the stoppers are aligned in the length direction of the flat belt, allowing size adjustment.

[0015] In addition to the above configuration, a chest belt according to a sixth embodiment of the present invention comprises an engaging protrusion protruding from a main surface of the flat belt and an engaging hole formed on the main surface of the flat belt and engaging with the engaging protrusion, the engaging protrusion and the engaging hole being formed at positions facing each other on the flat belt forming the second loop.

[0016] In addition to the above configuration, a chest belt according to a seventh embodiment of the present invention is configured such that two or more of the engagement holes are aligned in the longitudinal direction of the flat belt, allowing size adjustment. [Effects of the Invention]

[0017] The present invention aims to improve the wearing comfort of a chest belt. It is also possible to improve the safety of the chest belt. It is also possible to provide a chest belt that can be attached to a shoulder belt without using a hard material. [Brief explanation of the drawings]

[0018] [Figure 1] 1 is a diagram showing an example of the configuration of a chest belt 100 according to the present invention. [Figure 2] 10A and 10B are diagrams showing how the chest belt 100 is separably connected. [Figure 3] FIG. 2 is a diagram showing an example of a detailed configuration of a connecting belt 3 before assembly. [Figure 4] 10A and 10B are diagrams showing an example of a method for assembling the connecting belt 3. FIG. [Figure 5] 3 is a diagram showing an example of a detailed configuration of the buckle 20 and the connecting belt 3 after assembly. FIG. [Figure 6] FIG. 2 is a diagram showing an example of a detailed configuration of a connecting belt 5 before assembly. [Figure 7] 10 is a diagram showing an example of a detailed configuration of the buckle 21 and the connecting belt 5 after assembly. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0019] Embodiment 1 Fig. 1 is a diagram showing one configuration example of a chest belt 100 according to the present invention. Fig. 2 is a diagram showing how the chest belt 100 is connected so as to be separable. The chest belt 100 is a fastener that connects a pair of shoulder belts 61, 62 provided on a backpack (not shown) at the chest, and by connecting the pair of shoulder belts 61, 62 and pulling them together, it is possible to prevent the backpack from slipping off.

[0020] The pair of shoulder belts 61, 62 are connected at both ends to the bag body, pass over the shoulders and underarms, and are positioned on the left and right sides of the front of the chest. When putting the backpack down, the pair of shoulder belts 61, 62 are moved apart to the left and right, and the arms are removed. Therefore, by connecting the pair of shoulder belts 61, 62 in front of the chest using the chest belt 100, the backpack can be prevented from slipping off.

[0021] A backpack is a bag that is carried on the back with arms passing through a pair of shoulder belts 61, 62, and includes rucksacks, daypacks, school bags, etc. Although an example of a chest belt for a backpack will be described in this embodiment, the chest belt according to the present invention can be applied to various items that have a pair of shoulder belts and is not limited to backpacks.

[0022] The chest belt 100 is composed of a buckle unit 2 and a pair of connecting belts 3 and 5. Both ends of the buckle unit 2 are connected to shoulder belts 61 and 62 via the connecting belts 3 and 5, respectively.

[0023] The buckle unit 2 is composed of a pair of detachable buckles 20 and 21. The buckles 20 and 21 incorporate magnets 20M and 21M, respectively, and can be separably connected by the attraction force of the magnets 20M and 21M.

[0024] The connecting belt 3 has a loop 320 at one end that engages with the shoulder belt 61, and the other end that is connected to the buckle 20. Similarly, the connecting belt 5 has a loop 520 at one end that engages with the shoulder belt 62, and the other end that is connected to the buckle 21. Therefore, by separating the buckles 20 and 21, the backpack can be taken off without removing the chest belt 100 from the pair of shoulder belts 61 and 62.

[0025] FIG. 3 is a diagram showing an example of the detailed configuration of the connecting belt 3 before assembly, FIG. 4 is a diagram showing an example of a method of assembling the connecting belt 3, and FIG. 5 is a diagram showing an example of the detailed configuration of the buckle 20 and connecting belt 3 after assembly.

[0026] (a) of Figure 3 is a diagram showing one main surface of the connecting belt 3, (b) is a diagram showing the other main surface, (c) is a diagram showing a cross section when cut along the AA cutting line, and (d) is a diagram showing a cross section when cut along the BB cutting line.

[0027] The connecting belt 3 is composed of a flat belt 30, a binding ring 31, and stoppers 32 and 33. The binding ring 31 and the stoppers 32 and 33 are formed integrally with the flat belt 30 and are made of the same material.

[0028] The connecting belt 3 is made of a material with appropriate flexibility and stretchability. For example, it can be made by hot pressing silicone rubber with a hardness of 50 degrees. Other synthetic rubbers and synthetic resins can also be used.

[0029] The flat belt 30 is a connecting member having a substantially rectangular flat cross section, and has an elongated shape that extends in the longitudinal direction with a constant width except for the vicinity of the end 302 opposite the binding ring 31. For example, it has a shape of 20 mm in width, 2 mm in thickness, and 220 mm in length. Of the two longitudinal ends of the flat belt 30, the end 301 where the binding ring 31 is provided will be called the "ring end," and the end 302 opposite will be called the "insertion end."

[0030] The binding ring 31 is a substantially rectangular annular body provided at the ring end 301 of the flat belt 30, and is formed by providing three sides of a U-shape on one main surface (first main surface) of the flat belt 30. In other words, the binding ring 31 is a rectangular frame formed using the flat belt 30 as one side, and has a through-hole 31H that passes through the flat belt 30 in the longitudinal direction. After the flat belt 30 is folded back to form a loop, the flat belt 30 is inserted into the binding ring 31 by inserting the insertion end 302 into the through-hole 31H. The through-hole 31H has a shape of, for example, a width of 20 mm and a height of 2 mm.

[0031] The stoppers 32, 33 are protrusions provided on the first main surface of the flat belt 30, and are aligned in the longitudinal direction of the flat belt 30. For the stoppers 32, 33 to pass through the binding ring 31, the binding ring 31 must be deformed, and the stoppers 32, 33 will not pass through the binding ring 31 against the user's will. For this reason, the stoppers 32, 33 inserted through the binding ring 31 during assembly are locked by the binding ring 31 so as not to pass through the binding ring 31 in the reverse direction during use, and define the position of the flat belt 30 held by the binding ring 31.

[0032] The connecting belt 3 includes one main stopper 32 and one or more auxiliary stoppers 33. The main stopper 32 is a stopper for preventing the belt from falling off and is located near the insertion end 302, and has a maximum height of, for example, 2 mm. The auxiliary stopper 33 is a stopper for adjusting the size and is located closer to the binding ring 31 than the main stopper 32 and has a maximum height of, for example, 1 mm.

[0033] The length of the connecting belt 3 can be adjusted by selecting which of the stoppers 32, 33 to engage with the binding ring 31. In addition, by making the main stopper 32 taller than the auxiliary stopper 33, it is possible to prevent the buckle 20 from falling off and to facilitate size adjustment.

[0034] Each of the stoppers 32 and 33 has an inclined surface in which the height on the insertion end 302 side is lower than that on the ring end 301 side. In addition, when viewed from above, the edge on the insertion end 302 side is a smoothly curved convex shape, while the edge on the link end 301 side is a straight line extending in a direction perpendicular to the longitudinal direction of the flat belt 30. Therefore, the assembly work of inserting the insertion end 302 into the binding ring 31 so as to move it forward is relatively easy, but it is difficult to pass the binding ring 31 in the disassembly direction so as to move the insertion end 302 backward. Therefore, the assembly work can be made easier while ensuring the function as a stopper.

[0035] 4 is a diagram showing an example of a method for assembling the connecting belt 3, and (a) to (c) in the diagram show the assembly process in chronological order. For the sake of convenience, the auxiliary stopper 33, shoulder belt 61, and buckle 20 are omitted.

[0036] As shown in (a) and (b), the flat belt 30 is folded back to form a first loop 320 that surrounds the shoulder belt 61, and is inserted into the binding ring 31. At this time, the insertion end 302 of the flat belt 30 is inserted into the through-hole 31H from the inner opening 310 of the binding ring 31. The insertion of the flat belt 30 is performed while deforming the binding ring 31.

[0037] Next, as shown in (b) and (c), the flat belt 30 is folded back to form a second loop 321 that engages with the buckle 20, and is again inserted through the binding ring 31. At this time, the insertion end 302 of the flat belt 30 is inserted into the through-hole 31H from the outer opening 311 of the binding ring 31. The insertion of the flat belt 30 is performed while deforming the binding ring 31.

[0038] The first loop 320 and the second loop 321 are both loops formed by inserting the flat belt 30 through the binding ring 31, and the second loop 321 is formed on the opposite side of the binding ring 31 from the first loop 320.

[0039] The binding ring 31 has a through-hole 31H that penetrates the flat belt 30 in the longitudinal direction, so that the connecting belt 3 formed by inserting the flat belt 30 through the binding ring 31 to form the first loop 320 and the second loop 321 does not undergo significant twisting or bending. Therefore, there is no deterioration in the wearing comfort due to twisting or bending of the connecting belt 3.

[0040] FIG. 5 shows an example of the detailed configuration of the buckle 20 and connecting belt 3 after assembly, where (a) shows the appearance when viewed from the front during use, and (b) shows the appearance when viewed from below during use.

[0041] Buckle 20 has a horizontally elongated, generally rectangular shape, incorporates magnet 20M in the center, and has a connecting hole 20H at one longitudinal end for attaching connecting belt 3. Connecting shaft 20A is provided inside connecting hole 20H, and connecting belt 3 is inserted around connecting shaft 20A. In other words, connecting belt 3 is connected to buckle 20 by arranging connecting shaft 20A inside second loop 321.

[0042] In the drawing, the main stopper 32 is shown locked to the binding ring 31, but by further pulling out the insertion end 302, the auxiliary stopper 33 can also be locked to the binding ring 31. By pulling out the insertion end 302, the length of the connecting belt 3 is shortened, and the size can be adjusted.

[0043] Fig. 6 is a diagram showing an example of the detailed configuration of the connecting belt 5 before assembly, and Fig. 7 is a diagram showing an example of the detailed configuration of the buckle 21 and connecting belt 5 after assembly. The method of assembling the connecting belt 5 is the same as the method of assembling the connecting belt 3 shown in Fig. 4, so a duplicated explanation will be omitted.

[0044] 6A is a diagram showing one main surface of the connecting belt 5, (b) is a diagram showing the other main surface, (c) is a diagram showing a cross section when cut along the CC cutting line, and (d) is a diagram showing a cross section when cut along the DD cutting line.

[0045] The connecting belt 5 is composed of a flat belt 50, a binding ring 51, a stopper 52, an engaging protrusion 53, and an engaging hole 54. The binding ring 51, the stopper 52, and the engaging protrusion 53 are formed integrally with the flat belt 50 and are made of the same material. The material of the connecting belt 5 is the same as that of the connecting belt 3, so a duplicated explanation will be omitted.

[0046] The flat belt 50 is a connecting member having a substantially rectangular flat cross section, and has an elongated shape that extends in the longitudinal direction with a constant width except for the vicinity of the end 502 opposite the binding ring 51. For example, it has a shape of 20 mm width, 2 mm thickness, and 205 mm length. Of the two longitudinal ends of the flat belt 30, the end 501 where the binding ring 51 is provided will be called the "ring end," and the end 502 opposite will be called the "insertion end."

[0047] The binding ring 51 is a substantially rectangular annular body provided at the ring end 501 of the flat belt 50, and is formed by providing three sides of a U-shape on one main surface (first main surface) of the flat belt 50. In other words, the binding ring 51 is a rectangular frame formed using the flat belt 50 as one side, and has a through-hole 51H that passes through the flat belt 50 in the longitudinal direction. After the flat belt 50 is folded back to form a loop, the flat belt 50 is inserted into the binding ring 51 by inserting the insertion end 502 into the through-hole 51H. The through-hole 51H has a shape of, for example, a width of 20 mm and a height of 2 mm.

[0048] The stopper 52 is a protrusion provided on the first main surface of the flat belt 50, and is exactly the same as the stopper 32, so a duplicated description will be omitted.

[0049] The engaging protrusion 53 and the engaging hole 54 are means for adjusting the size of the second loop 521. Two or more engaging holes 54 are aligned in the longitudinal direction of the flat belt 50, and the size of the second loop 521 can be adjusted by engaging the engaging protrusion 53 with any one of these engaging holes 54.

[0050] The engaging protrusion 53 is a protrusion provided on the other main surface (second main surface) of the flat belt 50, and is composed of a shaft portion having a circular cross section with a smaller diameter than the engaging hole 54, and a head portion having a circular cross section with a larger diameter than the engaging hole 54. On the other hand, the engaging hole 54 is a through hole that passes through the flat belt 50 and has a circular cross section. The engaging protrusion 53 and the engaging hole 54 are provided on the flat belt 50 corresponding to the second loop 521.

[0051] FIG. 7 shows an example of the detailed configuration of the buckle 21 and connecting belt 5 after assembly, where (a) in the figure shows the appearance when viewed from the front during use, and (b) shows the appearance when viewed from below during use.

[0052] Buckle 21 has a horizontally elongated, generally rectangular shape, and has a magnet 21M built in at one longitudinal end and a connection hole 21H at the other end for attaching connecting belt 5. Connecting belt 5 is connected to buckle 21 by being inserted through connecting hole 21H.

[0053] In the figure, the engaging protrusion 53 is engaged with the engaging hole 54 that is far from the stopper 52, but by engaging it with the engaging hole 54 that is closer to the stopper 52, the size of the second loop 521 can be increased.

[0054] The chest belt 100 according to this embodiment includes connecting belts 3 and 5 made of a flexible material, and the buckle unit 2 can be connected to the shoulder belts 61 and 62 without using hard members such as clips, tri-lights, or buckles near the shoulder belts 61 and 62. This eliminates the uncomfortable feeling of hard members being pressed against the chest, improving the wearing comfort. Furthermore, there is no risk of injury from hard members in the event of a fall, improving safety.

[0055] Furthermore, the connecting belts 3, 5 are provided with binding rings 31, 51 at one end of the flat belts 30, 50, and the other end of the flat belts 30, 50 is folded back and inserted through the binding rings 31, 51 to form first loops 320, 520 and second loops 321, 521, thereby connecting the buckles 20, 21 to the shoulder belts 61, 62. This allows for the construction to be realized with a small number of parts, thereby reducing manufacturing costs and enabling the product to be provided at an affordable price.

[0056] In this embodiment, an example of the chest belt 100 having different connecting belts 3 and 5 has been described, but the present invention is not limited to this case. The pair of connecting belts may have the same configuration, for example, the same configuration as one of the connecting belts 3 and 5.

[0057] In the present embodiment, an example has been described in which the through holes 31H, 51H penetrate the binding rings 31, 51 in the longitudinal direction of the flat belts 30, 50, with the outer openings formed on the ring end 301, 501 side and the inner openings formed on the insertion end 302, 502 side. While good attachment can be achieved by adopting such a configuration, the present invention is not limited to this case. In other words, the through holes 31H, 51H may extend in a direction intersecting the longitudinal direction of the flat belt 30. [Explanation of symbols]

[0058] 100 Chest Belt 2 Buckle unit 20,21 Buckle 20A connecting shaft 20H connecting hole 20M, 21M magnet 21 Buckle 21H connecting hole 3 Connecting belt 30 Flat Belt 31 Binding Ring 31H through hole 32 Main stopper 33 Auxiliary stopper 301 Ring End 302 Insertion end 310 Inner opening 311 External opening 320 First Loop 321 Second Loop 5 Connecting belt 50 Flat Belt 51 Binding Ring 51H through hole 52 Stopper 53 Engagement protrusion 54 Engagement hole 501 Ring End 502 Insertion end 520 First Loop 521 Second Loop 61,62 Shoulder belt

Claims

1. In a chest belt that connects a pair of shoulder belts at the chest, A pair of detachable buckles, a pair of connecting belts that connect the pair of buckles to the pair of shoulder belts, The connecting belt is made of a flexible material and has a flat belt having a flat cross section and a substantially rectangular binding ring integrally formed at one end thereof, and the other end of the flat belt is folded back and inserted into the binding ring to form a first loop, and then the other end of the flat belt is further folded back and inserted into the binding ring to form a second loop on the opposite side to the first loop, One of the first loop and the second loop engages with the shoulder belt, and the other engages with the buckle.

2. the through hole of the binding ring has an outer opening on the one end side and an inner opening on the other end side, The first loop is formed by inserting the flat belt through the inner opening, 2. The chest belt according to claim 1, wherein the second loop is formed by inserting the flat belt through the outer opening.

3. 2. The chest belt according to claim 1, further comprising a stopper formed on a main surface of the flat belt, the stopper being engaged with the binding ring to maintain the second loop.

4. 4. The chest belt according to claim 3, wherein the stopper has an inclined surface such that the height of the one end side is higher than the height of the other end side.

5. 5. The chest belt according to claim 3, wherein two or more of the stoppers are aligned in the longitudinal direction of the flat belt, making the size adjustable.

6. an engaging projection protruding from a main surface of the flat belt; an engagement hole formed on a main surface of the flat belt and adapted to engage with the engagement projection; 2. The chest belt according to claim 1, wherein the engagement projection and the engagement hole are formed at positions facing each other on the flat belt forming the second loop.

7. 7. The chest belt according to claim 6, wherein two or more of the engagement holes are aligned in the longitudinal direction of the flat belt, and the size of the belt is adjustable.

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