JP7555874B2 - Belt bag - Google Patents

Description

The present invention relates to a belt-type bag. In particular, it relates to a belt-type bag to be used during exercise such as running.

In recent years, various waist bags for running have been provided (see, for example, Patent Document 1).

Patent No. 5947037

Conventional waist bags for running tend to swing significantly when the body swings while running, hindering the running motion and causing discomfort, placing a great burden on the wearer. When the waist belt is tightened in an attempt to suppress this swinging, excessive pressure is placed on the abdomen, further straining the wearer.

The present invention was made in consideration of these circumstances, and its purpose is to provide a belt-type bag that is stable and does not easily shake.

In order to solve the above problems, a belt-type bag according to one embodiment of the present invention comprises a bag body capable of storing carry-on items, and a belt part that is formed in an elongated shape and can be wrapped around the waist of a wearer and is connected to the bag body. The bag body and the belt part are connected to each other at an angle that forms an overall arc in a plan view when unfolded when not in use, so that when wrapped around the height of the wearer's pelvis, the belt part is configured to follow the inclination angle of the pelvis, and at least a portion of the belt part is formed from a member having elasticity, and has at least a vertical width such that when wrapped around the waist so that the upper end of the vertical width is at the height of the upper end of the wearer's ilium, the front part located on the front side of the body can cover the anterior superior iliac spine of the wearer. The vertical width of the bag body is wider than the vertical width of the front part of the belt part.

The term "arc-shaped" here does not mean that the contour is strictly an arc, but that the bag body and the belt are connected at a certain angle, not in a straight line, so that the bag body and the belt are connected to form a curved shape as a whole. This allows the bag body and the belt to be configured to fit along the inclination angle of the pelvis and be wrapped around more easily than if they were connected in a straight line. When this belt-type bag is properly wrapped around the waist of a wearer of average build, the belt is configured to have a wide vertical width so that the upper end of the ilium and the anterior superior iliac spine of the wearer are covered by the belt. In this way, the belt and the bag body are configured to have a sufficiently large vertical width and a sufficiently wide contact area with the wearer's body, so that the bag can be stably fixed around the pelvis. In addition, being able to wrap and fix the belt-type bag around the pelvis means that it can be worn at a position lower than the abdominal circumference, and excessive pressure on the abdomen can be avoided. Also, "following the inclination angle of the pelvis" does not mean that the bag body and belt part must follow the inclination angle of the pelvis at exactly the same angle, but rather that it is sufficient if they roughly follow the inclination angle of the pelvis, which varies from person to person. In this way, by being able to stably fix the bag roughly in line with the inclination angle of the pelvis, it is possible to tighten the pelvis and stabilize the pelvic angle while running.

The bag body is formed in a flat bag shape, and its outline is formed in a trapezoid shape with the bottom longer than the top in a plan view, and when the belt part is wrapped around the waist so that the top end of the vertical width is at the height of the top end of the wearer's ilium, the top end of the bag body may also be at the height of the top end of the wearer's ilium. The "flat bag shape" mentioned here means that the shape when not in use is generally flat, and does not require strictness in the shape, and does not prevent deformation according to the shape of the carried items and the elasticity of the bag body when carrying items are stored. In addition, the outline of the bag body is "formed in a trapezoid shape" in a plan view does not mean that it must be a strict trapezoid, but rather that it is sufficient if it is a shape that is roughly close to a trapezoid, and it may be a trapezoid with rounded corners and curved sides. The "height of the upper end of the ilium" mentioned here does not necessarily require a precise position, but rather it is sufficient if the upper end of the vertical width of the belt part and the upper base of the bag body are connected to each other in a manner that positions them at roughly the same height. By forming the bag body in a trapezoidal shape in this way, it can be easily wrapped around and secured in place so as to fit the angle of inclination of the pelvis, which is slanted in a fan-like manner.

The belt portion includes a left belt and a right belt located on the left and right sides of the wearer, and one end of the left belt in the longitudinal direction and one end of the right belt in the longitudinal direction can be connected to each other on the front side of the wearer's body. The left belt and the right belt may each have a front non-stretchable portion located on the front side of the wearer's body and a side stretchable portion connecting the front non-stretchable portion and the bag body. The left belt and the right belt may be pulled from the side of the body to the front side and the side stretchable portion may stretch depending on the position where they are connected to each other, and the belt portion and the bag body may be pressed around the wearer's waist according to the contraction force of the side stretchable portion. The side stretchable portion may be formed so that it is shorter than the front non-stretchable portion in the longitudinal direction of the left belt and the right belt. Compared to a case where the entire belt portion is formed so that it stretches little by little in a dispersed manner, a stronger contraction force acts by the amount that the side stretchable portion is concentrated and stretched, so that the belt portion and the bag body are more likely to fit closely to the body. According to this embodiment, the contraction force presses the belt and the bag body against the pelvis, preventing them from shifting from the pelvis to the abdominal area above it, and the bag can be fixed without excessive pressure on the abdomen. In addition, the bag can be stably fixed in line with the inclination angle of the pelvis, which tightens the pelvis and stabilizes the pelvic angle while running, reducing the burden on the body.

The hook-and-loop fastener provided over the entire length of the front non-stretchable portion of at least one of the left and right belts and the hook-and-loop fastener provided at least at the tip of the other belt may be pulled from the side of the body toward the front side, and the side stretchable portion may be stretched depending on the position where they are connected to each other, and the belt portion and the bag body may be pressed around the waist of the wearer depending on the contraction force of the side stretchable portion. The hook-and-loop fastener fixes the position of the front non-stretchable portion without stretching as a whole, and the side stretchable portion is stretched in a concentrated manner, and a strong contraction force acts, making it easier for the belt portion and the bag body to fit closely to the body. According to this embodiment, the belt portion and the bag body are pressed against the position of the pelvis by the contraction force, so that it is possible to prevent them from shifting from the position of the pelvis to the abdominal area above it, and it is possible to fix them while avoiding excessive pressure on the abdomen. In addition, by being able to stably fix them along the inclination angle of the pelvis, it is possible to reduce the physical burden based on stabilizing the pelvic angle during running by tightening the pelvis.

The present invention provides a belt-type bag that is stable and does not easily shake.

FIG. 2 is a plan view of the belt bag laid flat. FIG. 2 is a bottom view of the belt bag laid flat. FIG. 2 is a view of the belt bag being worn, as seen from the back side of the wearer. FIG. 2 is a diagram showing a belt-type bag being worn as viewed from the front side of a wearer. 13 is a diagram showing a method of connecting the left front non-stretchable portion and the right front non-stretchable portion as viewed from the front side of the wearer. FIG. FIG. 2 is a view of the belt bag being worn, as viewed from the left side of the wearer. 1 is a schematic diagram showing the state in which a belt-type bag is worn and the positional relationship between the wearer's pelvis and gluteus medius muscle as viewed from the left side. FIG. FIG. 4 is a diagram showing a schematic diagram of the fabric structure on the rear side of the bag body. FIG. 4 is a diagram showing a schematic diagram of an internal pocket of the bag body.

The present invention will be described below based on a preferred embodiment with reference to the drawings. In the embodiments and modified examples, identical or equivalent components and parts are given the same reference numerals, and duplicated explanations will be omitted as appropriate. The dimensions of the parts in each drawing are shown enlarged or reduced as appropriate to facilitate understanding. Some parts that are not important for explaining the embodiment are omitted in each drawing.

Figure 1 is a plan view of a belt-type bag laid flat. The belt-type bag 10 includes a bag body 20 and a belt portion 30. In this embodiment, the bag body 20 is formed in a flat bag shape capable of storing items such as a smartphone, a plastic bottle, and gloves. The bag body 20 has a trapezoidal contour in a plan view with the bottom base longer than the top base. The bag body 20 is formed entirely from a thin mesh fabric for breathability and light weight, and although the fabric itself is stretchable, its stretchability is limited (compared to the belt portion 30, described below) due to the characteristics of the back side fabric, described below.

The belt portion 30 in this embodiment is a long member that is connected to the bag body 20 and can be wrapped around the waist of the wearer. The belt portion 30 is composed of a left belt 30a and a right belt 30b. The left belt 30a includes a left front non-stretchable portion 31 and a left side stretchable portion 33, and the right belt 30b includes a right front non-stretchable portion 32 and a right side stretchable portion 34. Note that the belt portion 30 in this embodiment is composed of the left belt 30a and the right belt 30b, each of which has one end connected to the bag body 20, but in a modified example, the bag body 20 may be attached by being layered on a single integrally formed belt portion.

The left front non-stretchable portion 31 and the right front non-stretchable portion 32 are made of non-stretchable synthetic fibers. When the left front non-stretchable portion 31 is worn, a hook-and-loop fastener 31a is sewn to almost the entire front side, and one end of a band-shaped auxiliary belt 31b is sewn horizontally near the center of the vertical width. A hook-and-loop fastener 31c is also sewn to the back side of the other end of the auxiliary belt 31b. The left front non-stretchable portion 31 and the right front non-stretchable portion 32 do not have a storage section for storing carry-on items. However, in a modified example, a small pocket for storing small items may be added to the left front non-stretchable portion 31 or the right front non-stretchable portion 32 as an auxiliary.

A tip 32a is provided at the end of the right front non-stretchable portion 32 in the longitudinal direction. The tip 32a has a shape similar to a right-angled triangle with rounded corners, and a hook-and-loop fastener (not shown in the figure) is sewn to its back surface, which is attached to the hook-and-loop fastener 31a when the belt-type bag 10 is worn. A strip-shaped hook-and-loop fastener 32b is sewn horizontally near the center of the vertical width of the long portion 32d, which is the part of the right front non-stretchable portion 32 excluding the tip 32a. A rectangular auxiliary belt hole 32c is provided between the right end of the strip-shaped hook-and-loop fastener 32b and the tip 32a. The auxiliary belt 31b is passed through the auxiliary belt hole 32c from the back when the belt-type bag 10 is worn, and the hook-and-loop fastener 31c is attached to the strip-shaped hook-and-loop fastener 32b.

The left side stretchable portion 33 and the right side stretchable portion 34 are formed of a highly stretchable material, for example, a mesh fabric of synthetic fibers such as nylon. The left side stretchable portion 33 and the right side stretchable portion 34 are formed in a shape close to a rectangle whose opposite sides are not parallel to each other. That is, the left side stretchable portion 33 and the right side stretchable portion 34 are formed so that the distance between the upper edge 33a, 34a and the lower edge 33b, 34b widens from the connection point with the left front non-stretchable portion 31 toward the connection point with the bag body 20, and the distance between the front edge 33c, 34c and the rear edge 33d, 34d widens from above to below. As the front edge 33c of the left side stretchable portion 33 widens from above to below, the rear edge 31d of the adjacent left front non-stretchable portion 31 narrows from above to below with the front edge 33c as a tangent. Similarly, as the front edge 34c of the right side stretchable part 34 widens from above to below, the rear edge 32f of the adjacent right front non-stretchable part 32 narrows from above to below, with the front edge 34c as a tangent. The tip shape of the right front non-stretchable part 32 is premised on the edge of the tip 32a contacting the rear edge 31d of the left front non-stretchable part 31 when it is tightened to the maximum and connected to the opposing left front non-stretchable part 31. Therefore, the edge of the tip 32a also narrows from above to below to fit the shape of the rear edge 31d, and as a result, the left front non-stretchable part 31 has an inverted trapezoid shape with the upper base narrower than the lower base.

The upper edges 33a, 34a and the lower edges 33b, 34b of the left side stretchable section 33 and the right side stretchable section 34, which correspond to the upper and lower edges of the left side stretchable section 33 and the right side stretchable section 34, respectively, are made of a highly elastic band-like material, such as a synthetic fiber such as polyurethane, like a rubber band. The upper edges 33a, 34a are sewn to the mesh fabric of the left side stretchable section 33 and the right side stretchable section 34 so as to be roughly straight when spread out on a plane. In contrast, the lower edges 33b, 34b are sewn to the mesh fabric of the left side stretchable section 33 and the right side stretchable section 34 so as to draw a curved line that bulges downward when spread out on a plane. Between the upper edges 33a, 34a and the lower edges 33b, 34b, side pockets 33e, 34e are formed of double mesh fabric, and openings 33f, 34f are provided at the tops of the pockets. The openings 33f, 34f of the side pockets 33e, 34e are provided with straps 33g, 34g that allow the wearer to easily open the openings 33f, 34f by pinching them with their fingers. The auxiliary storage sections 33e, 34e are suitable for storing items that the wearer wants to easily access while running, such as energy supply gels and supplements for races.

When the belt-type bag 10 is unfolded on a flat surface as shown in the figure, the overall shape is configured to form an arc with both ends curved upward as shown by the overall shape line 12. In other words, the bag body 20, left belt 30a, and right belt 30b are connected to each other at an angle that forms an overall arc when viewed in a plane when unfolded when not in use, so that when wrapped around the wearer's pelvis at the same height, it follows the inclination angle of the pelvis.

Figure 2 is a bottom view of the belt-type bag laid flat. The backs of the bag body 20, left belt 30a, and right belt 30b shown in this figure are surfaces that can come into close contact with the wearer's body or clothing when worn. The backs of the left belt 30a include the backs of the left front non-stretchable portion 31 and the left side stretchable portion 33. The backs of the right belt 30b include the backs of the right front non-stretchable portion 32 and the right side stretchable portion 34. A hook-and-loop fastener 32e is sewn to the backs of the tip portion 32a, which is the tip of the right front non-stretchable portion 32, and is attached to the hook-and-loop fastener 31a of the left front non-stretchable portion 31 when the belt-type bag 10 is worn.

The back surface 25 of the bag body 20 is formed by sandwiching a sheet-shaped cushion mesh with a three-dimensional honeycomb structure between two thin mesh fabrics. This ensures breathability and prevents heat from building up, and also allows moisture to be efficiently dispersed even if the bag becomes wet with sweat. In addition, the cushion mesh is placed between the items stored in the bag body 20 and the wearer's body, reducing the impact and discomfort caused by the items directly hitting the body. Furthermore, the slight unevenness of the cushion mesh increases the friction between the wearer's body and the bag, making it less likely for the belt-type bag 10 to slip.

As shown in the figure, when the belt-type bag 10 is unfolded on a flat surface, the overall shape is configured to form an arc with both ends curved upward as shown by the overall shape line 12, even on the back side. In other words, the bag body 20, left belt 30a, and right belt 30b are connected to each other at an angle that forms an overall arc in a plan view when the bag is unfolded when not in use, so that the bag follows the inclination angle of the wearer's pelvis when wrapped around the bag at the height of the wearer's pelvis.

Figure 3 shows the belt-type bag worn as seen from the back of the wearer. The bag body 20 is formed in a shape close to a trapezoid, with the lower base Wb2 being slightly longer than the upper base Wb1, and is formed to easily fit the shape of the upper part of the buttocks, i.e., the shape of the buttocks that flares out near the pelvis. The trapezoidal shape referred to here may be a trapezoid with rounded corners and sides. By forming the bag body 20 in this way in a shape close to a trapezoid, it is possible to easily wrap and secure it around the pelvis to fit the inclination angle of the pelvis, which is often slanted in a flared manner.

The length of the lower base Wb2 of the bag body 20 is about 1.08 times the length of the upper base Wb1. The lengths of the upper base Wb1 and the lower base Wb2 are about 1.5 to 1.6 times the length of the vertical width Hb. That is, the vertical width Hb of the bag body 20 is about 66% of the upper base Wb1 and about 62% of the lower base Wb2. When viewed from the back side of the wearer, the bag body 20 has a size that can cover the horizontal and vertical widths of the pelvis, that is, the horizontal width of the ilium and the vertical width from the upper end of the ilium to the coccyx, and can be stably fixed to the pelvic position by a large frictional force. In addition, the bag body 20 covers and presses the entire pelvis on the back side, thereby tightening the pelvis and correcting distortion and looseness of the pelvis, thereby reducing the burden on the lower back.

Figure 4 shows the wearing state of the belt-type bag as seen from the front side of the wearer. The left front non-stretchable part 31 has a hook-and-loop fastener 31a on almost the entire surface, and the hook-and-loop fastener 32e on the back side of the tip 32a is attached to an appropriate position of the hook-and-loop fastener 31a, that is, a position that provides an appropriate degree of fastening according to the length of the wearer's pelvis circumference. This connects the left front non-stretchable part 31 and the right front non-stretchable part 32 to each other on the front side of the wearer's body. When the tip 32a is attached by tightening it to the maximum near the rear edge 31d of the hook-and-loop fastener 31a, the hook-and-loop fastener 31a is mostly hidden by the right front non-stretchable part 32 as shown in the figure and is almost invisible from the front side. Conversely, when the fastening is loosened from the degree shown in the figure, that is, when the tip 32a is attached to the hook-and-loop fastener 31a to the left of the position shown in the figure, a part of the hook-and-loop fastener 31a is not hidden by the right front non-stretchable part 32 and is exposed to the front side.

The width of the connected left front non-stretchable part 31 and right front non-stretchable part 32 is variable depending on where the tip part 32a and the auxiliary belt 31b are attached. In addition, the vertical width Hf of the left front non-stretchable part 31 and right front non-stretchable part 32 is formed to be wide. Because the width is variable and the upper edge width Wf1 (length from points Q1 to Q2) is longer than the lower edge width Wf2 (length from points P1 to P2), the vertical width Hf is approximately 21 to 32% of the upper edge width Wf1 and approximately 25 to 42% of the lower edge width Wf2.

Figure 5 shows the method of connecting the left front non-stretchable part and the right front non-stretchable part from the front side of the wearer. First, as shown in (a) of this figure, before attaching the back side of the right front non-stretchable part 32 to the front side of the left front non-stretchable part 31, the auxiliary belt 31b of the left front non-stretchable part 31 is passed through the auxiliary belt hole 32c of the right front non-stretchable part 32 from the back and brought out to the front. Next, the hook-and-loop fastener 32e (not shown) on the back side of the tip part 32a of the right front non-stretchable part 32 is attached to an appropriate position of the hook-and-loop fastener 31a. (b) of this figure shows the state in which the edge of the tip part 32a is fastened to a position along the rear edge part 31d and attached. Finally, the hook-and-loop fastener 31c on the back side of the auxiliary belt 31b is attached to the strip-shaped hook-and-loop fastener 32b to complete the connection.

In this way, the left front non-stretchable part 31 and the right front non-stretchable part 32 can be pulled from the left and right sides of the body and crossed and connected at the front side, allowing for a more secure tightening. In addition, by pulling the left front non-stretchable part 31 and the right front non-stretchable part 32, which are non-stretchable members, from the left and right sides of the body, the left side lateral stretchable part 33 and the right side lateral stretchable part 34 located on the sides of the body are stretched, and a pressing force against the body can be generated by the strong contraction force of the left side lateral stretchable part 33 and the right side lateral stretchable part 34. Furthermore, by attaching them with a double hook-and-loop fastener, the left front non-stretchable part 31 and the right front non-stretchable part 32 can be connected more reliably.

Figure 6 shows the belt-type bag being worn as seen from the left side of the wearer. When the wearer pulls the left front non-stretchable part 31 and the right front non-stretchable part 32, which are non-stretchable members, from the left and right sides of the body to connect them at the front side, the left front non-stretchable part 31 and the right front non-stretchable part 32, which are non-stretchable members, are pulled from the left and right sides of the body toward the front side. This causes the left side stretchable part 33 and the right side stretchable part 34, which are located on the sides of the body, to stretch, and a pressing force toward the side of the body is generated by the strong contraction force of the left side stretchable part 33 and the right side stretchable part 34. The belt-type bag 10 as a whole is tightly fastened around the pelvis and fixed in position.

The vertical width Hb of the bag body 20 is designed to be wider than the vertical width Hf of the front portion of the belt portion 30, i.e., the left front non-stretchable portion 31 and the right front non-stretchable portion 32, for example, about 1.5 to 1.8 times the vertical width Hf. In addition, when the upper end positions of the left front non-stretchable portion 31 and the right front non-stretchable portion 32 and the upper end position of the bag body 20 are aligned, the position of the lower end point P' of the bag body 20 or the left side stretchable portion 33 is lower than the position of the lower end point P of the left front non-stretchable portion 31 and the right front non-stretchable portion 32. Furthermore, the lower edge portion 33b of the left side stretchable portion 33 is located below the imaginary line connecting the lower end point P of the left front non-stretchable portion 31 and the right front non-stretchable portion 32 and the lower end point P' of the left side stretchable portion 33. Although not shown, the lower edge 34b of the right side stretchable portion 34 is also located below an imaginary line connecting the lower end points of the left front non-stretchable portion 31 and the right front non-stretchable portion 32 and the lower end point of the right side stretchable portion 34.

In this way, the area of the left side stretchable section 33 and the right side stretchable section 34 are increased, thereby ensuring a large storage capacity for the auxiliary storage sections 33e, 34e. In addition, the area of the left side stretchable section 33 and the right side stretchable section 34 is increased, thereby allowing the wearer's gluteus medius muscle to be widely covered, and the pressure corresponding to the contraction force can be applied to the gluteus medius muscle effectively. Furthermore, since the lower edges 33b, 34b are formed in a curved shape using a highly stretchable material rather than in a straight line, it is possible to absorb individual differences in the length of the pelvis circumference and make it easy to adjust the length to fit the pelvis circumference.

7 is a schematic diagram showing the state of wearing the belt-type bag and the positional relationship of the wearer's pelvis and gluteus medius muscle, viewed from the left side. The state of wearing the belt-type bag 10 is the same as that shown in FIG. 6. The so-called pelvis refers to a combination of a pair of left and right ilium 41, pubic bone 42, and ischium 43, and a sacrum 44 and coccyx 45. When the belt part 30 is wrapped around the waist so that the upper end of its vertical width is located at the height of the upper end of the ilium 41, the upper end of the bag body 20 is also located near the height of the upper end of the ilium 41. In this embodiment, it is assumed that a wearer with an average body wears the belt-type bag 10 at the above-mentioned height. In this case, the belt part 30, i.e., the left front non-stretchable part 31, the right front non-stretchable part 32, the left lateral stretchable part 33, and the right lateral stretchable part 34, have at least a vertical width sufficient to cover the anterior superior iliac spine 41a and the upper end 41b of the ilium 41.

The left side stretchable section 33 and the right side stretchable section 34 have a size and shape that can cover most of the gluteus medius 46. The high stretchability of the left side stretchable section 33 and the right side stretchable section 34 creates a pressure on the body, which can effectively act on the gluteus medius. In this way, the belt-type bag 10 has a size and shape that covers roughly the upper half of the pelvis and most of the gluteus medius.

Figure 8 shows a schematic of the fabric structure on the back side of the bag body. The bag body 20 is formed into a flat bag shape using a mesh fabric made of synthetic fibers such as thin stretchable nylon, and the fabric of the back part 25 is formed by sandwiching a cushion mesh 24 with a three-dimensional honeycomb structure between two mesh fabrics 23a and 23b. This ensures breathability and prevents heat from building up, and can efficiently diffuse moisture even if the bag becomes wet with sweat. In addition, the cushion mesh 24 is interposed between the items stored in the bag body 20 and the wearer's body, suppressing the impact and discomfort caused by the items directly hitting the body. Furthermore, since the cushion mesh 24 creates slight unevenness on the surface of the back part 25 through the mesh fabric 23, it creates a large frictional force when it comes into close contact with the clothes around the wearer's pelvis, making it difficult for the bag body 20 to slip.

The bag body 20 uses a cushion mesh 24 in the back portion 25 that is not necessarily highly elastic, and as a result, the elasticity of the entire bag body 20 is limited. Therefore, the elasticity of the left side stretchable portion 33 and the right side stretchable portion 34 is higher than that of the bag body 20, and when the wearer pulls the left front non-stretchable portion 31 and the right front non-stretchable portion 32 from the left and right of the body, the left side stretchable portion 33 and the right side stretchable portion 34 are more likely to stretch than the bag body 20. In other words, the left side stretchable portion 33 and the right side stretchable portion 34 are stretched in a concentrated manner, and a particularly high contraction force acts on the left side stretchable portion 33 and the right side stretchable portion 34, exerting a pressing force on the body.

Figure 9 shows a schematic diagram of the internal pocket of the bag body. An internal pocket 26 is provided inside the bag body 20. The internal pocket 26 is composed of a water-repellent synthetic fabric 26b, at least the upper end of which is sewn to the inside of the bag body 20, and a mesh fabric 26a, the left and right ends and the lower end of which are sewn to the water-repellent fabric 26b so that an opening is formed at the top. The internal pocket 26 can mainly store small items such as keys and coins.

When storing items that are small enough compared to the size of the bag body 20, such as keys or coins, storing them in the internal pocket 26 rather than in the larger storage section of the bag body 20 itself can prevent the items from bouncing around inside the bag body 20 or colliding with each other while traveling, which can cause large shaking and collision noises.

The present invention has been described above based on an embodiment. This embodiment is merely an example, and those skilled in the art will understand that various modifications are possible in the combination of each of the components, and that such modifications are also within the scope of the present invention. Modifications are shown below.

In this embodiment, the left front non-stretchable portion 31 and the right front non-stretchable portion 32 are crossed and connected with a double hook-and-loop fastener. In a modified example, the left front non-stretchable portion 31 and the right front non-stretchable portion 32 may be connected with only a pair of hook-and-loop fasteners, or may be connected with a fastener other than a hook-and-loop fastener.

In this embodiment, the left side stretchable section 33 and the right side stretchable section 34 have a shorter width than the left front non-stretchable section 31 and the right front non-stretchable section 32, but in a modified example, the left side stretchable section 33 and the right side stretchable section 34 may have a longer width than the left front non-stretchable section 31 and the right front non-stretchable section 32.

10 Belt-type bag, 20 Bag body, 22 Zipper, 30 Belt section, 30a Left belt, 30b Right belt, 31 Left front non-stretchable section, 31a Hook-and-loop fastener, 31c Hook-and-loop fastener, 31f Tip section, 32 Right front non-stretchable section, 32a Tip section, 32e Hook-and-loop fastener, 33 Left side stretchable section, 34 Right side stretchable section, 40 Wearer, 41 Ilium, 41a Anterior superior iliac spine, 41b Upper end of ilium.

Claims (4)

A bag body capable of storing carry-on items;
a belt portion that is formed in an elongated shape and can be wrapped around the waist of a wearer and is connected to the bag body;
The bag body and the belt part are connected to each other at an angle that forms an arc as a whole in a plan view in a spread-out state when not in use, and are configured to follow the inclination angle of the pelvis when wrapped around the wearer's pelvis height,
The belt portion is at least partially formed of a member having elasticity, and has at least a vertical width such that when the belt portion is wrapped around the waist so that the upper end of the vertical width is located at the height of the upper end of the ilium of the wearer, the front portion located on the front side of the body can cover the anterior superior iliac spine of the wearer,
The bag body has a vertical width greater than a vertical width of the front portion of the belt portion. The belt-type bag according to claim 1, characterized in that the bag body is formed in a flat bag shape, and its outline is formed in a trapezoid shape in which the bottom is longer than the top when viewed in a plane, and when the top end of the vertical width of the belt portion is wrapped around the waist so that it is positioned at the height of the top end of the wearer's ilium, the top end of the bag body is also positioned at the height of the top end of the wearer's ilium. the belt portion includes a left belt and a right belt located on the left and right sides of a wearer, and one end of the left belt in a longitudinal direction and one end of the right belt in a longitudinal direction are connectable to each other on a front side of a body of the wearer,
The left belt and the right belt each have a front non-stretchable portion located on the front side of the wearer's body and a side stretchable portion connecting the front non-stretchable portion and the bag body,
The belt-type bag according to claim 1 or 2, characterized in that the left belt and the right belt are pulled from the sides of the body toward the front, the side stretchable portion stretches depending on the position at which they are connected to each other, and the belt portion and the bag body are pressed against the wearer's waist according to the contraction force of the side stretchable portion. The belt-type bag according to claim 3, characterized in that the hook-and-loop fastener provided over the entire length of the front non-stretchable portion of at least one of the left belt and the right belt, and the hook-and-loop fastener provided at least at the tip of the other belt are pulled from the side of the body toward the front side, and the side stretchable portion stretches according to the position where they are connected to each other, and the belt portion and the bag body are pressed against the waist of the wearer according to the contraction force of the side stretchable portion.

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