Bag and frame attached to the bag

Abstract

The objective is to provide a user-friendly bag that allows for easy switching between using and not using wheels. [Solution] The invention comprises a bag body for storing items and a frame attached to the bag body. The bag body has a bottom surface and a front surface rising from the bottom surface. The frame has a bag holder for holding the bag body, a wheel holder with wheels, and a connecting part for connecting the wheel holder to the bag holder. The bag holder is provided with a storage hole for storing the wheels. The wheel holder can be switched between a stored state where the wheels are stored in the storage hole and a usage state where the wheels are positioned on the bottom surface by rotating the wheel holder at the connecting part. The connecting part includes a bag holder connecting part for connecting to the bag holder, a wheel holder connecting part for connecting to the wheel holder, and a connecting part body interposed between the bag holder connecting part and the wheel holder connecting part. The wheel holder rotates around either end of the connecting part body as the pivot point.

Description

【Technical Field】 【0001】 The present invention relates to a bag and a frame attached to the bag. 【Background Art】 【0002】 Conventionally, bags for storing luggage have been used. In particular, even when the luggage is heavy, bags equipped with wheels are used so that the user can easily carry it. 【0003】 On the other hand, on rough roads such as stairs, gravel roads, or snowy roads, it is difficult to carry the bag by rolling the wheels. In that case, the user holds or carries the bag, but at that time, the wheels may hit the user's back or feet, and may stain the user's clothes or body. 【0004】 In contrast, various bags have been proposed that prevent soiling of the user's clothes or body when holding or carrying the bag. 【0005】 For example, Patent Document 1 and Patent Document 2 describe bags provided with wheels and a cover that covers the wheels. 【Prior Art Documents】 【Patent Documents】 【0006】 【Patent Document 1】 Japanese Patent Application Laid-Open No. 9-285329 【Patent Document 2】 Utility Model Registration No. 3098518 【Summary of the Invention】 【Problems to be Solved by the Invention】 【0007】 However, the bags described in Patent Documents 1 and 2 cover the wheels with a cover, which makes the process of covering and removing the wheels very time-consuming. Also, because the position of the wheels is fixed, even when the wheels are covered, the appearance is significantly different from a bag without wheels, which detracts from its aesthetic appeal. 【0008】 The objective of this invention is to provide a user-friendly bag that allows for easy switching between using and not using wheels. [Means for solving the problem] 【0009】 To solve the above problems, the present invention provides a bag comprising a bag body for storing articles and a frame attached to the bag body, wherein the bag body has a bottom surface and a front surface rising from the bottom surface, the frame has a bag holder for holding the bag body, a wheel holder provided with wheels, and a connecting part for connecting the wheel holder to the bag holder, the bag holder is provided with a storage hole for storing the wheels, and the wheel holder can be switched between a stored state in which the wheels are stored in the storage hole and a usage state in which the wheels are positioned on the bottom surface by rotating the wheel holder at the connecting part, the connecting part includes a bag holder connecting part for connecting to the bag holder, a wheel holder connecting part for connecting to the wheel holder, and a connecting part body interposed between the bag holder connecting part and the wheel holder connecting part, and the wheel holder rotates about either end of the connecting part body as the pivot point. 【0010】 According to the present invention, it becomes possible to easily switch between the wheel's operational state and its retracted state, thereby improving convenience. Furthermore, by storing the wheels in the storage holes, it is possible to achieve an appearance similar to a bag without wheels, contributing to a superior aesthetic. 【0011】 In a preferred embodiment of the present invention, a bag holder shaft is formed in the bag holder connection portion, and a wheel holder shaft is formed in the wheel holder connection portion. 【0012】 This configuration, with the connecting body provided between the bag holder shaft and the wheel holder shaft, widens the range of motion of the wheel holder, making it even easier to position the wheel holder in the storage hole and at the bottom. 【0013】 In a preferred embodiment of the present invention, the frame has a storage and fixing section for detachably fixing the bag holder and the wheel holder. 【0014】 This configuration prevents the wheels stored in the storage holes from unintentionally popping out. 【0015】 In a preferred embodiment of the present invention, the bag holder includes a bottom holder that holds the bottom portion and a front holder that extends from the bottom holder and holds the front portion, the front holder being provided with the storage hole. 【0016】 This configuration allows the wheels to be stored in the storage holes while the bag is standing upright. Furthermore, the flat interior of the bag's bottom surface allows for more stable storage of items within the bag. 【0017】 In a preferred embodiment of the present invention, the frame has a bottom fixing portion for detachably fixing the bottom holder and the wheel holder. 【0018】 This configuration prevents the wheel holders from unintentionally rotating away from the bottom holders when the bag experiences shocks while moving. 【0019】 In a preferred embodiment of the present invention, the bottom holder has an inclined surface that slopes upward toward the front portion, In a state where the wheel holder is disposed on the bottom surface holder portion, the wheel protrudes in the direction of the front portion. 【0020】 With such a configuration, when the user takes out the wheel, the distance between the bottom surface portion of the bag and the ground on which the bag is placed becomes shorter, and the center of gravity of the entire bag can be lowered. Further, when the bag is tilted and moved, it is possible to suppress the bottom surface portion from rubbing against the ground. 【0021】 In a preferred form of the present invention, a raised portion is provided on the front portion, and the wheel holder and the raised portion form the same plane in a state where the wheel is stored in the storage hole. 【0022】 With such a configuration, when the user uses the bag with the front of the bag on the back, it becomes easier to carry on the back. Further, it is possible to prevent the user from tripping over the wheel holder in which the wheel is stored in the storage hole. In addition, since there are no irregularities on the front portion in the storage state, it contributes to the excellent appearance of the bag body. 【0023】 In a preferred form of the present invention, a plurality of the wheels are provided in the integrated wheel holder. 【0024】 With such a configuration, it becomes possible to run the bag more stably. Further, it is possible to store a plurality of wheels in the storage hole or take them out from the storage hole by a single operation. 【0025】 Another aspect of the present invention is a frame attached to a bag, comprising a bag holder for holding the bag, a wheel holder provided with wheels, and a connecting portion for connecting the wheel holder to the bag holder. The bag holder is provided with a storage hole for storing the wheels. By rotating the wheel holder at the connecting portion, the wheels can be switched between a storage state where the wheels are stored in the storage hole and a use state where the wheels are positioned on the bottom surface of the bag. The connecting portion includes a bag holder connecting portion connected to the bag holder, a wheel holder connecting portion connected to the wheel holder, and a connecting portion main body interposed between the bag holder connecting portion and the wheel holder connecting portion. The wheel holder is a frame that rotates about either end of the connecting portion main body as a rotation center. 【Advantages of the Invention】 【0026】 According to the present invention, it is possible to provide a user-friendly bag that facilitates switching between using and not using the wheels regardless of whether the wheels are in use or not. 【Brief Description of the Drawings】 【0027】 [Figure 1] It is a front view of a bag according to an embodiment of the present invention. [Figure 2] It is a perspective view of a bag according to an embodiment of the present invention. [Figure 3] It is an exploded view of a bag according to an embodiment of the present invention, which is a perspective view of the bag body in a state where the shoulder strap portion is not stored in the shoulder strap storage portion and a perspective view of the bag body in a state where the shoulder strap portion is stored in the shoulder strap storage portion. [Figure 4] It is an exploded view of a bag according to an embodiment of the present invention, which is a perspective view of the frame in a use state. [Figure 5] It is an exploded view of a bag according to an embodiment of the present invention, which is a perspective view of the frame in a storage state. [Figure 6] It is an exploded view of a bag according to an embodiment of the present invention, which is a perspective view of the bag holder, the wheel holder, and the connecting portion in a storage state. [Figure 7] This is an exploded view of a bag according to an embodiment of the present invention, and is a perspective view of the bag holder, wheel holder, and connecting part in a state of use. [Figure 8] This is an exploded view of a bag according to an embodiment of the present invention, and includes a side view of the frame and a side view of the bag body. [Figure 9] This is an exploded view of a frame according to another embodiment of the present invention, showing the bag holder, wheel holder, and connecting portion in use. [Modes for carrying out the invention] 【0028】 <This embodiment> The bag according to an embodiment of the present invention will be described below with reference to Figures 1 to 8. The embodiments shown below are examples of the present invention and are not limited to these embodiments. In these figures, the symbol X indicates a bag according to this embodiment. Additionally, dashed lines indicate hypothetical lines. In this specification, the state in which the wheels are stored in the storage holes is referred to as the "stored state," and the state in which the wheels are located on the bottom surface is referred to as the "used state." Furthermore, unless otherwise specified, the term "or" is used to mean a comprehensive logical disjunction that includes "at least one" of the items listed in the text. 【0029】 <Structure> As shown in Figure 1, the bag X comprises a bag body 1 for storing items and a frame 2 attached to the bag body 1. 【0030】 <<Bag body>> As shown in Figure 3, the bag body 1 has a bottom portion 11, a front portion 12 rising from the bottom portion 11, a storage space 13, an opening 14, a shoulder strap portion 15, a side storage portion 16, and a communication hole 17. 【0031】 In this embodiment, the bag body 1 is a backpack, but any bag such as a duffel bag or briefcase can be used. 【0032】 The front section 12 includes a mounting opening 121 for attaching the front holder 212 of the frame 2 (described later), a shoulder strap storage section 122 for storing the shoulder strap section 15, and a front panel 123. 【0033】 The mounting opening 121 is formed to be approximately the size of the storage hole H in the frame 2 when viewed from the front. 【0034】 The mounting opening 121 is provided on the bottom surface 11 side of the front surface 12 and connects the storage space 13 with the external space. 【0035】 The shoulder strap storage section 122 is located directly above the mounting opening 121. 【0036】 Furthermore, the shoulder strap storage compartment 122 opens upwards. As a result, as shown in Figure 3(b), when the shoulder strap portion 15 is not in use, a part of the shoulder strap portion 15 can be stored in the shoulder strap storage portion 122. 【0037】 The shoulder strap storage section 122 is provided as a protrusion from the mounting opening 121 and the front panel 123. In particular, the shoulder strap storage section 122 forms a raised portion. 【0038】 As shown in Figure 8, the raised shoulder strap storage section 122 and the wheel holder 22, which will be described later, form the same plane when the wheel holder 22 is stored. 【0039】 When the wheel holder 22 is in the retracted position, the shoulder strap storage section 122 and the front panel 123 come into contact with the user's back. 【0040】 The opening 14 connects the containment space 13 to the external space. 【0041】 Furthermore, a zipper 141 is provided at the opening 14. This causes the opening 14 to open and close. 【0042】 The shoulder strap portion 15 is provided with a first shoulder strap portion 151 and a second shoulder strap portion 152. 【0043】 The first shoulder strap portion 151 is provided with a buckle B that connects to the second shoulder strap portion 152. This makes it possible to adjust the length of the shoulder strap 15 to the desired length. 【0044】 The side storage compartments 16 are provided on both sides of the bag body 1. 【0045】 The side storage compartment 16 opens upwards. This makes it possible to store long items such as water bottles and tent poles. 【0046】 A fastener 171 is provided in the communication hole 17, and it is formed to a size that allows the gripping portion P1 of the handle P, which will be described later, to be inserted. This allows the handle P to be stored in the storage space 13 when not in use by the user, thus preventing the handle P from becoming dirty or deteriorated by rain or ultraviolet rays without compromising the aesthetic appearance of the bag body 1. 【0047】 <<Frame>> As shown in Figure 4 or Figure 5, the frame 2 includes a bag holder 21 for holding the bag body 1, a wheel holder 22 on which the wheel W is provided, a connecting part 23 for connecting the wheel holder 22 to the bag holder 21, and a fixing part 24. 【0048】 The bag holder 21 includes a bottom holder 211 that holds the bottom portion 11 and a front holder 212 that extends from the bottom holder 211 and holds the front portion 12. In this embodiment, the bottom holder 211 and the front holder 212 are a single component, but they may be composed of separate components. 【0049】 As shown in Figure 6, the bottom holder 211 includes a first bottom holder component 211a connected to the front holder 212, and a second bottom holder component 211b extending from the first bottom holder component 211a. 【0050】 The bottom holder 211 is attached to the bag body 1 by being fastened with multiple rivets (not shown) to the bottom portion 11 inside the storage space 13 of the bag body 1. The bottom holder 211 may be attached to the bottom portion 11 of the bag body 1 with screws, or it may be sewn to the bottom portion 11 of the bag body 1. 【0051】 The first bottom holder component 211a and the second bottom holder component 211b are made of plastic. 【0052】 In this embodiment, the first bottom holder structure 211a and the second bottom holder structure 211b are formed from a single member, but they may be made from different members. 【0053】 The first bottom holder structure 211a has an inclined surface 211s that slopes upward toward the front portion 12. As a result, as shown in Figure 8, it becomes possible to position the wheel W, which will be provided on the wheel holder 22 described later, on the front side. Furthermore, if a stand s, which will be described later, is provided, the distance between the second bottom holder structure 211b, which will be described later, and the ground g becomes shorter, which allows the height of the bottom stand s to be lowered, and even when a stand s is provided, it is possible to suppress any deterioration in the aesthetic appearance of the bag X. 【0054】 As shown in Figure 8(a), the second bottom holder component 211b is positioned parallel to the ground g. As a result, the bottom surface 11 of the bag body 1 to which the frame 2 is attached becomes parallel to the ground g, allowing items to be stably stored in the storage space 13. 【0055】 The second bottom holder component 211b is provided with a stand s that protrudes from the bottom portion 11 of the bag body 1. This allows the device to stand stably on its own even in inclines or inside trains where acceleration and deceleration occur. 【0056】 As shown in Figure 4, the front holder 212 includes a first front holder component 212a that extends from the bottom holder 211 and holds the front portion 12, a second front holder component 212b positioned directly above the first front holder component 212a, and a handle P attached to the first front holder component 212a and the second front holder component 212b. 【0057】 As shown in Figure 1, the first front holder component 212a is attached to the bag body 1 by fastening multiple rivets c to the front portion 12 on the inside of the storage space 13 of the bag body 1. Similarly, the second front holder component 212b is also attached to the bag body 1 by being fastened with multiple rivets (not shown) to the front portion 12 on the inside of the storage space 13 of the bag body 1. The first front holder component 212a and the second front holder component 212b may be attached to the front portion 12 of the bag body 1 with screws, or they may be sewn to the front portion 12 of the bag body 1. 【0058】 The first front holder component 212a is made of plastic. 【0059】 The first front holder structure 212a is provided with a protruding storage hole H for storing the wheel W. This allows the entire Bag X to be made compact when stored. 【0060】 The storage holes H are provided in the same number as the number of wheels W, and are formed to be large enough to accommodate one wheel W. As a result, when the wheels W are positioned on the bottom surface 11 during use, the opening of the storage hole H is not formed to a large size, thereby preventing mud, rainwater, etc. from entering the storage hole H. 【0061】 The first front holder component 212a is attached to the front portion 12 of the bag body 1 at a position where the storage hole H corresponds to the mounting opening 121 of the bag body 1. 【0062】 The second front holder component 212b is separate from the first front holder component 212a and is attached to the handle P at a predetermined distance from the first front holder component 212a. This allows the front portion 12 of the bag body 1 to be held in place while reducing the overall weight of the front holder 212. 【0063】 The handle P is a telescopic handle provided with a gripping portion P1 and a telescopic pipe P2. 【0064】 The surface of the wheel holder 22 is covered with a fabric used for the bag body 1, such as PVC (polyvinyl chloride) or canvas. 【0065】 The wheel holder 22 is equipped with multiple wheels W. In this embodiment, one wheel W is a single wheel, but it may also be a double wheel. In particular, multiple wheels W are mounted on a single wheel holder 22. 【0066】 As shown in Figure 8(a), the wheel W protrudes in the direction of the front portion 12 when in use. 【0067】 As shown in Figure 6, the connecting portion 23 includes a bag holder connecting portion 231 that connects to the bag holder 21, a wheel holder connecting portion 232 that connects to the wheel holder 22, and a connecting portion body 233 interposed between the bag holder connecting portion 231 and the wheel holder connecting portion 232. In this embodiment, the connecting portion 23 is composed of a single double hinge member. 【0068】 The bag holder connection portion 231 includes one hinge of the double hinge member, and this hinge constitutes the bag holder shaft portion 231h. Similarly, the wheel holder connection portion 232 includes another hinge of the double hinge member, and this hinge is provided with a wheel holder shaft portion 232h. As a result, the connecting body 233 rotates on the bag holder shaft 231h as a pivot point in response to the rotation of the wheel holder 22 around the wheel holder connection part 232. 【0069】 In other words, the wheel holder 22 rotates around either end of the connecting body 233 (i.e., the bag holder shaft 231h or the wheel holder shaft 232h) as the pivot point, allowing the wheel holder 22 to switch between a stored state in which the wheel W is stored in the storage hole H as shown in Figure 6, and a usage state in which the wheel W is positioned on the bottom surface 11 as shown in Figure 7. 【0070】 Furthermore, since the wheel holder shaft portion 232h and the bag holder shaft portion 231h are positioned with the connecting body 233 in between, interference due to the thickness of the wheel holder 22 is suppressed, and the wheel holder 22 can be smoothly switched between the operational state and the stored state. 【0071】 Furthermore, the connecting portion 23 is not particularly limited as long as it is a member that separates the bag holder shaft portion 231h and the wheel holder shaft portion 232h. 【0072】 As shown in Figure 6, the fixing part 24 includes a bottom fixing part 241 that fixes the wheel holder 22 to the bottom holder 211, and a storage fixing part 242 that fixes the wheel holder 22 to the front holder 212. 【0073】 As shown in Figure 6, the bottom fixing portion 241 includes a magnet 241a provided on the bottom holder 211 and a magnet 241b provided on the wheel holder 22. 【0074】 The magnet 241a is embedded inside the bottom holder 211. Similarly, the magnet 241b is embedded inside the wheel holder 22. As a result, magnets 241a and 241b do not protrude from the surfaces of the bottom holder 211 and wheel holder 22, and the surfaces of each holder form a single plane, thus maintaining the aesthetic appearance of the frame 2 when stored. 【0075】 The magnet 241a provided on the bottom holder 211 and the magnet 241b provided on the wheel holder 22 are a pair of magnets positioned to attract each other. This makes it possible to detachably fix the wheel holder 22 to the bottom holder 211. Furthermore, it is also possible to have a configuration in which a magnet is provided on either the bottom holder 211 or the wheel holder 22, and a magnetic material is provided on the other. 【0076】 As shown in Figure 7, the storage and fixing section 242 includes a magnet 242a provided on the front holder 212 and a magnet (not shown) provided on the wheel holder 22. 【0077】 The magnet 242a provided in the front holder 212 is embedded in the front holder 212 so as not to protrude from it. As a result, when the frame 2 is attached to the bag body 1, the front of the bag body 1 does not bulge due to the magnet 242a, thus maintaining the aesthetic appearance of the bag X. 【0078】 Similarly, the magnet (not shown) provided in the wheel holder 22 of the storage and fixing section 242 is embedded inside the wheel holder 22. As a result, the magnets provided on the wheel holder 22 do not protrude from the surface of the wheel holder 22, thus maintaining the aesthetic appearance of the frame 2 when in use. 【0079】 The magnet (not shown) provided on the wheel holder 22 and the magnet provided on the front holder 212 are a pair of magnets that attract each other. This makes it possible to detachably fix the wheel holder 22 to the front holder 212. Furthermore, a configuration in which a magnet is provided on one of the wheel holder 22 and the front holder 212, and a magnetic material is provided on the other, is also possible. 【0080】 Furthermore, the magnet (not shown) provided on the wheel holder 22 in the bottom fixing portion 241 may be the same as the magnet (not shown) provided on the wheel holder 22 in the bottom fixing portion 241. 【0081】 <Effects> According to this embodiment, the bag holder 21 is provided with a storage hole H for storing the wheel W, and the connecting part 23 includes a bag holder connecting part 231 that connects to the bag holder 21, a wheel holder connecting part 232 that connects to the wheel holder 22, and a connecting part body 233 interposed between the bag holder connecting part 231 and the wheel holder connecting part 232. Since the wheel holder 22 rotates around either end of the connecting part body 233 as the pivot point, it is possible to easily switch between the wheel W being used and stored, improving convenience. Furthermore, by storing the wheel W in the storage hole H, the appearance is the same as a bag without wheels W, contributing to a superior aesthetic. 【0082】 Furthermore, since a bag holder shaft portion 231h is formed in the bag holder connection portion 231 and a wheel holder shaft portion 232h is formed in the wheel holder connection portion 232, the connecting body 233 is provided between the bag holder shaft portion 231h and the wheel holder shaft portion 232h, which widens the range of motion of the wheel holder 22 and makes it even easier to position the wheel holder 22 in the storage hole H and the bottom. 【0083】 Furthermore, since the frame 2 has a storage fixing part 242 that detachably secures the wheel holder 22 to the front holder 212 of the bag holder 21, it is possible to prevent the wheel W stored in the storage hole H from unintentionally popping out of the storage hole H. 【0084】 Furthermore, the bag holder 21 includes a bottom holder 211 that holds the bottom portion 11 and a front holder 212 that extends from the bottom holder 211 and holds the front portion 12. The front holder 212 is provided with a storage hole H, allowing the wheels W to be stored in the storage hole H when the bag X is standing upright. In addition, since the inside of the bottom portion 11 of the bag body 1 is flat, items can be stored more stably in the bag body 1. 【0085】 Furthermore, since the frame 2 has a bottom fixing part 241 that detachably secures the bottom holder 211 and the wheel holder 22, it prevents the wheel holder 22 from unintentionally rotating away from the bottom holder 211 when the bag X receives an impact while the bag X is moving. 【0086】 Furthermore, the first bottom holder structure 211a has an inclined surface 211s that slopes upward toward the front portion 12, and when the wheels W are in use, they protrude toward the front portion 12, so that when the wheels W are extended the distance between the bottom portion 11 of the bag X and the floor on which the bag X is placed is shortened, and the center of gravity of the entire bag X can be lowered. In addition, when the bag X is tilted and moved, the bottom portion 11 is prevented from scraping against the ground g. Furthermore, by shortening the distance between the second bottom holder structure 211b and the ground g, the height of the bottom stand s can be reduced, thereby preventing the aesthetic appearance of the bag X from being compromised. 【0087】 Furthermore, the front section 12 is provided with a raised shoulder strap storage section 122, and the wheel holder 22 and the shoulder strap storage section 122 form the same plane when stored, making it easier to carry the bag X on one's back when using the front section 12. This also prevents the user from tripping over the wheel holder 22 in which the wheels W are stored in the storage holes H. 【0088】 Furthermore, by providing multiple wheels W in the integrated wheel holder 22, the bag X can be driven more stably. In addition, multiple wheels W can be stored in the storage holes H and removed from the storage holes H with a single operation. 【0089】 <Example of changes> The shapes and dimensions of the components shown in the above embodiment are merely examples and can be modified in various ways based on design requirements, etc. 【0090】 For example, as shown in Figure 9, the connecting portion 23 may be made of fabric. In this embodiment, the bag holder connecting portion 231, which is the boundary portion between the bag holder 21 and the connecting portion 23, forms the bag holder shaft portion 231h, and the wheel holder connecting portion 232, which is the boundary portion between the wheel holder 22 and the connecting portion 23, forms the wheel holder shaft portion 232h. In particular, since a bag holder shaft portion 231h is formed at one end of the connecting portion 23 and a wheel holder shaft portion 232h is formed at the other end of the connecting portion 23, the bag holder shaft portion 231h and the wheel holder shaft portion 232h are arranged with a predetermined distance between them. 【0091】 For example, the connecting portion 23 may be a string member or a chain member. 【0092】 For example, the first front holder component 212a and the second front holder component 212b may be formed integrally. 【0093】 For example, the storage hole H may be formed to be large enough to accommodate multiple wheels W. 【0094】 For example, the storage and fixing part 242 may be a pair of hook-and-loop fasteners or a pair of hooks. 【0095】 Similarly, for example, the bottom fixing part 241 may be a pair of hook-and-loop fasteners or a pair of snaps. [Explanation of Symbols] 【0096】 X Bag 1. Bag body 2 frames 11 Bottom part 12 Front view 121 Mounting opening 122 Shoulder strap storage compartment 123 Front Panel 13 Containment Space 14 Opening 141 Zippers 15 Shoulder strap 16 Side storage compartment 17 Communication hole 21 Bag Holder 211 Bottom holder 211a First bottom holder component 211b Second bottom holder component 211s slope 212 Front holder 212a First front holder component 212b Second front holder component H storage hole 22 Wheel holders W wheels 23 Connecting part 231 Bag holder connection part 232 Wheel holder connection part 233 Connecting section body 24 Fixed part 241 Bottom fixing part 241a Magnet 241b magnet 242 Storage and fixing section 242a Magnet c crimp s stand g ground

Claims

[Claim 1] It is a bag, It comprises a bag body for storing items and a frame attached to the bag body, The bag body has a bottom portion and a front portion that rises from the bottom portion. The frame comprises a bag holder for holding the bag body, a wheel holder on which wheels are provided, and a connecting portion for connecting the wheel holder to the bag holder. The bag holder is provided with a storage hole for storing the wheel. The wheel holder can rotate at the connecting portion, allowing switching between a stored state in which the wheel is stored in the storage hole and a usage state in which the wheel is positioned on the bottom surface. The connecting portion includes a bag holder connecting portion that connects to the bag holder, a wheel holder connecting portion that connects to the wheel holder, and a connecting portion body interposed between the bag holder connecting portion and the wheel holder connecting portion. The wheel holder rotates with either end of the connecting body as the pivot point. The bag holder includes a bottom holder that holds the bottom portion and a front holder that extends from the bottom holder and holds the front portion. The front holder is provided with the storage hole in the bag. [Claim 2] A bag, It comprises a bag body for storing items and a frame attached to the bag body, The bag body has a bottom portion and a front portion that rises from the bottom portion. The frame comprises a bag holder for holding the bag body, a wheel holder on which wheels are provided, and a connecting portion for connecting the wheel holder to the bag holder. The bag holder is provided with a storage hole for storing the wheel. The wheel holder can rotate at the connecting portion, allowing switching between a stored state in which the wheel is stored in the storage hole and a usage state in which the wheel is positioned on the bottom surface. The connecting portion includes a bag holder connecting portion that connects to the bag holder, a wheel holder connecting portion that connects to the wheel holder, and a connecting portion body interposed between the bag holder connecting portion and the wheel holder connecting portion. The wheel holder rotates with either end of the connecting body as the pivot point. The aforementioned front portion is provided with a raised portion, The wheel holder and the raised portion form the same plane in the stored state of the bag. [Claim 3] The bag holder connection portion has a bag holder shaft portion formed therein. The bag according to claim 1 or 2, wherein a wheel holder shaft portion is formed in the wheel holder connection portion. [Claim 4] The bag according to claim 3, wherein the frame has a storage and fixing portion for detachably fixing the wheel holder to the bag holder. [Claim 5] The bottom holder has an inclined surface that slopes upward toward the front side, The bag according to claim 1, wherein the wheel protrudes in the direction of the front part in the state of use. [Claim 6] The bag according to claim 1, wherein the frame has a bottom fixing portion for detachably fixing the wheel holder to the bottom holder. [Claim 7] The bag according to claim 1, wherein a plurality of wheels are provided in the integrated wheel holder. [Claim 8] A frame to be attached to a bag having a front portion and a bottom portion, It has a bag holder for holding the bag, a wheel holder on which wheels are provided, and a connecting part for connecting the wheel holder to the bag holder. The bag holder is provided with a storage hole for storing the wheel. The wheel holder rotates at the connecting portion, allowing switching between a stored state in which the wheel is stored in the storage hole and a usage state in which the wheel is positioned on the bottom surface of the bag. The connecting portion includes a bag holder connecting portion that connects to the bag holder, a wheel holder connecting portion that connects to the wheel holder, and a connecting portion body interposed between the bag holder connecting portion and the wheel holder connecting portion. The wheel holder rotates between the bag holder and the bottom surface, with either end of the connecting body as the pivot point. The bag holder includes a bottom holder that holds the bottom portion and a front holder that extends from the bottom holder and holds the front portion. The frame is provided with the storage hole in the front holder. [Claim 9] A frame to be attached to a bag having a front portion with a raised portion and a bottom portion, It has a bag holder for holding the bag, a wheel holder on which wheels are provided, and a connecting part for connecting the wheel holder to the bag holder. The bag holder is provided with a storage hole for storing the wheel. The wheel holder rotates at the connecting portion, allowing switching between a stored state in which the wheel is stored in the storage hole and a usage state in which the wheel is positioned on the bottom surface of the bag. The connecting portion includes a bag holder connecting portion that connects to the bag holder, a wheel holder connecting portion that connects to the wheel holder, and a connecting portion body interposed between the bag holder connecting portion and the wheel holder connecting portion. The wheel holder rotates between the bag holder and the bottom surface, with either end of the connecting body as the pivot point. The wheel holder is a frame that forms the same plane as the raised portion in the stored state.

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