KR20180086927A - Multifunctional bag with adjustable inner space - Google Patents

Abstract

The present invention relates to a multifunctional bag capable of adjusting the size of an internal space. The multifunctional bag capable of adjusting the size of an internal space includes a zipper on an upper side, a lower side, a left side, and a right side of a bag usable as a backpack which is used as a backpack carried on the back of any user such as a student or a worker or is held by a hand to be carried, and a first and a second storage space extension unit consisting of a flexible unit to freely extend and adjust the size of the internal space of the bag to be smaller or larger in a widthwise direction and a heightwise direction to store objects therein even when the required storage amount increases. A shoulder strap and a handle strap can be elongated and adjusted in accordance with the body condition of a bag user. Automatic adjustment is possible to automatically rewind the elongated shoulder strap and handle strap to an original state when the bag is no longer being used. Specifically, many storage pockets conventionally formed on the outside of the bag to store objects are eliminated, and storage objects are inserted into internal storage bodies separately modularized into prescribed sizes to be stored in the bag to reduce bag manufacturing costs and improve bag appearance. Velcro tape is attached and formed on one surface of the internal storage body, and non-woven fabric is formed on the upper and lower surfaces in the bag to attach and fix the Velcro tape to the non-woven fabric to easily organize the internal storage bodies and prevent a movement of the internal storage bodies in the bag when moving. The internal storage body is made of a material with mesh holes to quickly and visually check a stored object from the outside without opening the internal storage body.

Description

{Multifunctional bag with adjustable inner space}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multifunctional bag capable of freely adjusting the size of an internal space. More specifically, the present invention relates to a multifunctional bag capable of freely adjusting the size of an internal space, A first accommodating space expanding portion and a second accommodating space expanding portion including zipper and stretchable portion on four sides in upper, lower, left, and right sides, respectively, so that the size of the internal storage space of the bag can be freely extended or decreased in width direction and height direction The shoulder strap and the strap of the bag are adjusted so as to suit the body condition of the bag user, and when the use of the bag is finished, the stretched shoulder strap and the strap are automatically It is possible to automatically adjust to revert to the original state, The present invention relates to a method of manufacturing a bag in which a plurality of storage pockets formed on the outside of a bag are removed and stored in an internal storage body formed separately and modularly by a certain size, The Velcro tape is attached and the nonwoven fabric is formed on the upper and lower surfaces of the bag to fix the Velcro tape on the nonwoven fabric so that the inner accommodating body can be arranged and prevented from moving inside the bag when moving The present invention relates to a multifunctional bag capable of easily adjusting the size of an internal space of the internal storage body by using a material having a mesh hole formed therein,

In general, the bag is a daily necessity that is housed by anyone who carries the required storage for both sexes, and is carried with the shoulder strap to carry on the back or to carry with hand.

These bags are made for students to carry on for school classes, adults to carry on their social life, and shoulder straps and knob straps are fixed to predetermined positions so that they do not get in the way of the body. Inside the bag, there is always provided an internal space for accommodating a certain volume of stored items.

First, most of the stored items stored in the bag are stored in the internal space, and frequently used stored items are stored in an external storage pocket formed separately on the outside, so that the inside and outside of the bag are stored Space is designed. However, both the storage space inside the bag and the storage pockets outside are designed to store the contents within a predetermined volume, and the contents stored in a predetermined volume or more can be stored in a separate storage body, for example, a disposable bag made of paper or synthetic resin It is stored and carried with the bag.

Accordingly, the bag according to various purposes such as a student bag, a business bag, a travel bag, etc., can store the stored object up to a predetermined volume in the inner space of each bag, and the stored object exceeding a predetermined volume is added using another means The inconvenience and hassle of storing the stored items frequently occur.

As a preferred method for solving the inconvenience and inconvenience due to the configuration of the inside of the bag which can accommodate only a predetermined volume, the conventional technology proposed in Korean Patent Publication No. 10-2016-1132161, A method of inflating an inflatable bag and a bag "is disclosed. According to the prior art 1, a plurality of wall surfaces that can be inflated by gas, for example, air into the bag, The upper shelf is housed inside the bag, and if necessary, the wall surface is inflated with air and a shelf is arranged (refer to FIGS. 22, 23 and 26), and a bag which can be used for a clothes storage cabinet, a shoebox, The bag of the prior art 1 is obviously usable as a bag, but it is formed by being folded in the inside of the bag, and the inflatable wall body is provided inside the bag For example, when traveling or traveling, air is injected into a wall surface of a bag by using an air pump, and the bag is opened upright to accommodate various objects as described above The present invention proposes a bag which can be used for a wall surface of a cabinet, and thus the wall surface formed by folding the bag inside the bag of the prior art 1 corresponds to a technical structure in which the wall of the temporary storage box is made upright, The bag of the technique 1 is not a technical structure for allowing the interior space of the bag to be widened to accommodate more of the interior contents, but a bag for an upright cabinet that folds the wall body to be a wall of the temporary storage space, It only performs the role.

In this way, it is also a practical problem that the conventional proposal in which the internal space of the bag can be variably extended in accordance with the amount of the stored contents can hardly be found.

Meanwhile, the backpack strap, the shoulder strap, and the strap of the bag are designed to be exposed to the outside in a state in which the length thereof is adjusted to suit the user's body condition, And there is a discomfort that the exposed backpack strap and shoulder strap are directly contacted with the dust or foreign matter on the floor when they are put on the floor. In view of the conventional proposal for solving the problem, Korean Patent No. 10- 1447444 and the prior art 2, which is a multipurpose rucksack and bag with a non-protruding structure, which can be carried in five forms. According to the above-mentioned prior art 2, the length of each of the backpack straps, the shoulder straps, By adopting the automatic adjustment of the length of the tape measure that automatically rolls the control part, for example, by using the restoring force of the spring or spring The strap is automatically pulled so that when the user uses the bag, the length of the strap is adjusted to suit his / her body condition. After use, the automatically stretched strap is pulled and pulled, And is arranged in a tight manner. According to the prior art 2, the backpack strap, the shoulder strap, and the strap formed in the bag can be evaluated as proposals for greatly enhancing user efficiency and convenience that can be neatly arranged at a predetermined position without protruding from the outer surface of the bag However, the automatic adjusting portion of the backpack, the shoulder strap and the knob strap is provided with a winding portion composed of at least one pair of strap fasteners, a spring or a spring, and a spring fastener portion (Claims 3 and 4, The automatic adjusting unit of the bag string of the prior art 2 must have many technical constructions.

Generally, outside of the bag, there are external storage pockets for storing items, such as a zipper or a velcro tape, and the technical structure of a zipper or a Velcro tape are all known There are prior arts 3, which is a technique of constructing a velcro tape, Korean Utility Model Registration No. 20-0359555, entitled " Bag with Removable Auxiliary Pouch " , A Velcro tape is attached to the outer surface of the bag, and a Velcro tape is attached to one side of the detachable auxiliary bag so that the Velcro tapes can be detachably fixed to each other. The user of the bag can conveniently take out the necessary storage from the outside storage pocket without opening the inside of the bag, but the aesthetic appearance of the outer surface of the bag can not have a clean appearance, The external storage pockets can also be detached from the outer surface of the bag if a slight external impact is applied thereto, thereby also having the inevitable problem that the storage housed in the external storage pocket may be damaged.

In order to solve such a problem of the outside storage pocket, Korean Patent No. 10-1285622, entitled " Bag having a detachable auxiliary bag for use as a north pocket " A plurality of auxiliary bags are fixed to the inside of the bag by using a binder formed on the inner bottom surface of the bag, thereby proposing a method of improving the convenience for users to organize the stored contents stored in the bag neatly. However, in the case of the bag according to the prior art 4, a bag manufacturing process including an auxiliary bag, which attaches a binder of steel material to one side of the bag and punctures the binding hole on one side of the auxiliary bag, There are some problems such that the bag manufacturing cost is increased due to the necessity of many configurations.

Although each of the prior art documents 1 to 4 described above is clearly a proposal having the individual advantages of the prior art documents, all of the preceding documents extend the interior storage space of the bag as necessary, There is a limitation in that it is not a convenient and convenient way to store the stored contents inside the space-extended bag. In addition, there is a limit in that the stored contents stored in the bag are prevented from being collided against each other in a neatly arranged state when the bag is moved It was also a suggestion that there was a secondary limitation that the technology composition and operation effect could not be expected.

(Prior Art 1) Korean Patent Publication No. 10-2016-1132161 (Prior Art 2) Korean Patent No. 10-1447444 (Prior Art 3) Korean Utility Model Registration No. 20-0359555 (Prior Art 4) Korean Patent No. 10-1285622

SUMMARY OF THE INVENTION The present invention has been made to solve the problems of the prior art and the known prior art, and it is an object of the present invention to provide a storage space expansion unit comprising a zipper and a stretchable and contractible portion on a side surface of a bag, A second storage space expanding portion extending in the front height direction of the bag is formed together so that the storage space inside the bag can be freely extended in the width direction and the height direction when necessary so that the storage amount of the stored object can be flexibly extended, A shoulder strap automatic adjusting unit and a knob strap automatic adjusting unit to adjust the length of the strap in accordance with the user's body when using the bag and to rewind the straps after using the bag and to tightly arrange the strap at a predetermined position on the outer surface of the bag, A nonwoven fabric is fixedly disposed on the upper and lower surfaces of the substrate, and modularized large, medium, small The velcro tape is formed on one surface of the inner housing and fixed to the nonwoven fabric so as to abut the Velcro tape so that the inner accommodating body can be arranged so as not to move in a state arranged in the bag, A mesh ball is formed on the other surface of the inner housing facing the surface on which the Velcro tape is formed so that the user of the bag can quickly and easily identify the stored object stored inside the inner housing from the outside with the naked eye, A shoe storage pocket for storing shoes such as a sneaker, a shoe, and a slipper is formed on one side of the nonwoven fabric on which the nonwoven fabric is not fixedly arranged, so that a bag user can perform both indoor and outdoor activities And which can adjust the size of the internal space of the multi-functional bag.

The above object of the present invention is achieved by a bag in which a shoulder strap and a strap can be opened and closed by a zipper in the form of a rectangular hexahedron whose length is adjustably arranged on the outer surface, A second accommodating space expanding portion composed of a zipper and a stretchable portion extending in the height direction of the front surface of the bag is formed on the side surface of the bag, and the shoulder strap And a shoulder strap capable of adjusting the length of the strap The automatic strap and the strap are formed so as to be connected to one end of each of the shoulder straps and the strap, and the nonwoven fabric is adhered to the inner surfaces of the front and back surfaces And a shoe storage pocket is formed in one side of the bag in which the nonwoven fabric is not formed, And a Velcro tape is formed on one surface of the nonwoven fabric so that the nonwoven fabric and the Velcro tape can be detached and attached by mutual adhesion and a mesh hole is formed on the other surface facing the surface on which the Velcro tape is formed, This is achieved by a multifunctional bag capable of adjusting the size of the internal space including the sieve.

Preferably, the stretchable and contractible portion of the first storage space extension portion and the stretchable and contractible portion of the second storage space extension portion are waterproof to one side of the bag, and are elastic materials.

Preferably, the inner receptacle is formed with a Velcro tape on one side and a mesh hole on the other side, and the inner receptacle is provided in at least one of each size of a large size, a medium size, and a small size.

Preferably, the shoulder strap and the strap may further include stoppers that do not change the adjusted length after the length adjustment is completed.

The multifunctional bag capable of adjusting the size of the internal space according to the present invention is characterized in that the first storage space extension part and the second storage space extension part, which are composed of the zipper and the stretchable and contractible part, It is possible to expand the extension part to extend the inside of the bag in the side width direction and / or the front height direction, thereby exerting an excellent operation effect that can flexibly expand and adjust the size of the storage space inside the bag. Further, the automatic shoulder strap adjusting part and the handle strap The shoulder strap and the handle strap are automatically wound by the user after the bag is used by the automatic retracting operation of the automatic regulating unit so that the straps are automatically arranged in the outer surface of the bag at a predetermined position so that the straps are automatically arranged, And the inner surface of the front and rear of the inside of the bag is formed into a nonwoven fabric The inner storage body modularized by size, medium size and small size is attached and fixed to the front and rear inner surfaces of the bag by using a Velcro tape formed on one side thereof, so that the inner storage body can be neatly arranged, A mesh hole is formed on the other surface opposite to the one surface of the inner receptacle on which the Velcro tape is formed so that the user can see the outer surface from the outside without opening the inner receptacle, It is possible to quickly check the contents stored in the inside of the bag, and to store extra shoes in the shoe storage pocket formed on the inner side of the bag, so that the user can carry out activities for indoor activities and outdoor activities in accordance with the situation and environment There is an excellent effect that various functions of the display device can be efficiently demonstrated.

1 (a) and 1 (b) are a front perspective view and a rear perspective view of a multifunctional bag capable of adjusting the size of an internal space according to an embodiment of the present invention.
FIG. 2 is a perspective view illustrating a state in which an inner housing is fixedly disposed inside a bag and a shoe is housed in a shoe storage pocket in a state in which a front surface of a multifunctional bag capable of adjusting the size of an inner space according to an embodiment of the present invention is opened; State diagram.
FIG. 3 is a rear perspective view of a multifunctional bag capable of adjusting the size of an internal space according to an embodiment of the present invention after the first storage space expansion unit and the second storage space expansion unit are extended. FIG.
4 (a) and 4 (b) are views showing the state before and after the expansion of the first storage space extension part and the second storage space expansion part of the multifunctional bag capable of adjusting the size of the internal space according to the embodiment of the present invention Schematic cross section.
5 is a view showing the same configuration of a shoulder strap automatic strapping portion and a handle strap automatic strapping portion of a multifunctional bag capable of adjusting the size of an internal space according to an embodiment of the present invention.
6 (a) and 6 (b) are a front perspective view and a rear perspective view of an interior receptacle of a multifunctional bag capable of adjusting the size of an internal space according to an embodiment of the present invention.

The technical structure for performing various functions which are the advantages and features of the present invention, and the function and effect exerted by the technical structure will be described in detail in the following embodiments.

It is to be understood that the present invention is not limited to the embodiments disclosed herein but may be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein without departing from the spirit and scope of the present invention as defined by the appended claims. Is provided to fully illustrate the scope of the invention to a person, and the invention is only defined by the scope of the claims.

It is to be understood that the terminology used herein is for the purpose of describing the exemplary embodiments of the invention and is not intended to limit the scope of the present invention.

A multifunctional bag A capable of adjusting the size of an internal space according to an embodiment of the present invention will be described with reference to the accompanying drawings. The multifunctional bag A is formed in a shape of a generally rectangular hexahedron, A shoulder strap 30 is formed on the front face S1 and a handle strap 40 is fixed on the side face S2 so as to be usable as a bag and a backpack, It is a bag that can be used for indoor activities or outdoor activities. For convenience of explanation, the face of the bag which contacts the user or the like as the outer surface of the bag and on which the shoulder strap 30 is formed is referred to as a front face S1, and four side faces adjacent to the front face S1 are referred to as side faces S2 And a surface facing the front surface S1 is referred to as a rear surface S3.

At least one shoulder strap (30) is formed on the front surface (S1) of the multifunctional bag (A) capable of adjusting the size of the internal space so as to be adjustable in length, and a side surface (S2) A zipper 1 is formed adjacent to an edge of the front surface S1 on which the shoulder strap 30 is formed and opens and closes the bag, . Although the opening and closing fastener 1 is described as being formed adjacent to the edge of the front surface S1 in the embodiment of the present invention, the opening and closing zipper 1 is formed adjacent to the edge of the rear surface S3 facing the front surface S1 Of course.

A first storage space expansion unit 10 including a zipper 11 and a stretchable and contractible portion 12 extending in the width direction of the side surface of the bag so as to extend and adjust the storage amount of the inside of the bag is provided adjacent to the edge of the rear surface S3 And the bag side surface S2. The zipper 11 is a known structure and the stretchable and contractible portion 12 formed by extending the zipper 11 is folded into the bag when the zipper 11 is closed, When the zipper 11 is opened, the folded stretchable portion 12 expands and expands in the width direction of the bag side surface S2 so that the four side surfaces S2 of the bag extend in the width direction. The inner space becomes larger to accommodate more.

Accordingly, even if the bag stored in the first bag is increased in daily life, the user of the bag can not enlarge the first storage space expanded by the expansion of the stretchable portion 12 without using a separate auxiliary bag or the like, The first storage space expansion unit 10 greatly improves the convenience of use of the bag by the user because the extended space of the storage unit 10 can be utilized.

Since the stretchable and contractible portion 12 has to be folded into the bag and then spread out, the stretchable and contractible portion 12 is not limited as long as it is suitable for the stretchable material. It is preferable that the one surface 12a of the stretchable and contractible portion 12 forming the elastic member S2 is waterproofed.

The multifunctional bag A capable of adjusting the size of the internal space can be expanded by increasing the storage amount in the width direction of the four sides S2 of the bag by expanding the first storage space expansion unit 10, The present invention is characterized in that the second storage space extension portion 20 composed of the zipper 21 and the stretchable and contractible portion 22 is provided on at least one side surface S2 of the upper side or the lower side of the side surface S2 of the bag So that it is possible to extend upward or downward in the height direction of the front face S1 of the bag so that the storage space inside the bag can be expanded so as to be widened in the vertical direction of the bag front face S1 as well.

1 and 3, the second storage space expanding portion 20 is formed on the side surface of the second storage space expanding portion 20 on which the handle strap 40 is formed (1) between the zipper (11) of the opening and closing zipper (1) and the zipper (11) of the first storage space extension part (10) by at least one side of the upper and lower side surfaces . The second storage space extension part 20 is formed at such a predetermined formation position so that when the second storage space extension part 20 is extended, the storage space inside the bag is maximally expanded in the height direction So that it is possible to increase the storage amount of the inside of the bag compartment as much as possible in the height direction.

In the embodiment of the present invention, the second storage space expansion part 20 is formed on the upper side S2, but the number of the second storage space expansion part 20 is one on the lower side S2 facing the upper side S2 Of course.

Like the expansion / contraction section 12 of the first storage space expansion section 10, the expansion / contraction section 22 of the second storage space extension section 20 has to be folded into the bag and spread out, The side surface S2 of the bag must be formed while the stretchable and contractible portion 22 is extended so that one surface 22a of the stretchable portion 22 forming the side surface S2 is waterproof .

The zipper 11 of the first storage space extension portion 10 and the zipper 21 and the stretchable portion 21 of the expansion portion 12 and the second storage space extension portion 20 have the same technical structure and structure The respective storage space expanding portions 10 and 20 extend in the width direction of the side surface S2 of the bag and the height direction of the front surface S1 of the bag by the same operation at a predetermined position, .

At least one known shoulder strap (30) is formed on the front surface (S1) of the multifunctional bag (A) capable of adjusting the size of the internal space, so that the bag can be put on the shoulder like a backpack, A known handle strap 40 is formed and can be carried and held by hand.

The shoulder strap 30 and the handle strap 40 are each formed so as to be connected to one end of the shoulder strap automatic winding portion 31 and the handle strap automatic winding portion 41, The length of the body 40 can be adjusted to suit the user's body condition.

The technical structure and structure of the shoulder strap automatic winding portion 31 and the pull string automatic winding portion 41 are the same as those of the conventional automatic tape winding structure disclosed in the above-mentioned prior art 2, A wrapping mechanism can be applied. Here, the shoulder strap automatic strap portion of the above-described prior art 2 and the automatic strap portion of the hand strap include a shoulder strap automatic grip portion including a shoulder strap and a leaf spring to which both ends of the strap are connected, The shoulder strap automatic winding unit 31 and the automatic strap automatic strapping unit 41 according to the embodiment of the present invention are provided with a shoulder strap 30 and one end of the strap 40 And the other end of the straps 30 and 40 is configured such that only the straps 30 and 40 are fixed without the automatic strap portions 31 and 41 being formed.

The shoulder strap 30 and the strap 40 are also designed to maintain the adjusted length so that the length-adjustable shoulder strap 30 and the strap 40 are not rewound during use It is preferable to further include known stoppers 30a and 40a, respectively.

The automatic shoulder strap 31 and the automatic strap strap 41 and the stoppers 30a and 40a correspond to well-known technical constructions, and a detailed description thereof will be omitted.

The multifunctional bag A capable of adjusting the size of the internal space according to the embodiment of the present invention is characterized in that the inner surface of the bag front surface S1, to which the shoulder strap 30 is fixed, The inner surface of the bag rear surface S3 opposing to the back surface S3 is formed so that the nonwoven fabric 50 is adhered and fixed. A Velcro tape 61 formed on one surface of an inner accommodating body 60 to be described later is adhered and fixed on the inner surface of the bag front surface S1 and the inner surface of the rear surface S3, And is fixed to the nonwoven fabric 50 so as to be stably disposed inside the bag without moving.

As shown in Figs. 2 and 6, the inner housing 60 fixedly attached to the nonwoven fabric 50 has a large size 60a, a medium size 60b and a small size 60c, And the stored contents stored in the bag are sorted and housed in the bag. A Velcro tape 61 is formed on one surface of the inner housing 60 so that the Velcro tape 61 is fixed to the nonwoven fabric 50 inside the bag so as to be adhered to each other, It is possible to arrange neatly the items stored in the inside of the bag by the inner receptacle 60 modularized by the sizes 60a, 60b and 60c, since the inside can be stably arranged without moving in the bag, The inner accommodating body 60 stably disposed does not collide with each other when the bag is moved so that it is possible to safely store and convey the inner accommodating body 60 without fear of damaging the stored object stored inside the inner accommodating body 60. [

In the embodiment of the present invention, the Velcro tape 61 of the inner housing 60 is formed in a large size on one surface, but is not limited thereto, and may be formed as a plurality of strips or a plurality of Of course, be formed.

Since the other surface of the inner accommodating body 60 is formed in a mesh shape in which the mesh hole 62 is formed, the user can visually check the stored contents stored in the inner accommodating body 60 through the mesh hole 62, It is possible to quickly and easily identify the stored object stored in the bag and open the inside of the inner storage body 60 one by one to check it, .

The inner receptacle 60 is opened and closed by a known zipper 63.

The multifunctional bag A capable of adjusting the size of the internal space according to the embodiment of the present invention has a shoe storage pocket 70 for storing extra shoes such as shoes, shoes, slippers, etc., Respectively. The configuration of the shoe storage pocket 70 for storing extra shoes further allows the adult to carry out outdoor activities by swinging the sneakers out of the bag after the indoor activities in the state of wearing shoes, When you visit a business partner, you will be able to go to a business partner by going to a business partner. When students go to school and go to school and go to school, There is no need to carry a bag.

The shoe storage pockets 70 can be formed in a known bag shape or can be configured in the form of a net, and if the spare shoe can be easily housed in the bag regardless of its shape There is no limitation.

It is preferable that the forming position of the shoe storing pocket 70 is formed on the inner surface of the side surface S2 facing the side surface S2 on which the pull tab 40 formed on the bag side surface S2 is formed, The modularized inner housing 60 is attached to the inner surface of the bag and two inner surfaces of the nonwoven fabric 50 are attached to the inner surface of the bag, And the second storage space extension portion 20 is formed by at least one side surface S2 on the upper side or the lower side surface S2 of the four side surfaces S2, The handle strap 40 and the automatic strap fastening portion 41 are formed on one side S2 so that the stretchable and contractible portion 12 of the first storage space extension portion 10 is folded and accommodated, Since the inner surface of the side surface S2 is an empty space in which the structure other than the stretchable and contractible portion 12 is not disposed, It is most preferable to form the remaining inner side surface S2 corresponding to the empty space as described above for optimal efficient placement of the storage space inside the bag.

A method of using the multifunctional bag A capable of adjusting the size of the internal space according to the embodiment of the present invention described above will be described. First, The zipper 1 is opened to open the bag and the stored articles are classified and housed in the inside of the inner receptacle 60 modularized by the size 60a, middle 60b, and small 60c The velcro tape 61 formed on one surface of the rear housing member 60 and the nonwoven fabric 50 adhered to the inner surface inside the bag front surface S1 and the inner surface inside the back surface S3 of the bag are bonded and fixed together The inner housing 60 is fixedly disposed on the inner surface of the bag so as to be fixed to the inner surface of the bag, and extra shoes such as shoes, sneakers and slippers are housed in a shoe storage pocket 70 formed on one side of the inside of the bag, Open by closing the zipper Thereby closing the bag. The closed bag can be moved by using a shoulder strap (30) to adjust the length and to carry it like a backpack to the shoulder or to adjust the length by holding the strap (40) by hand.

When a predetermined storage item is stored in the bag and another storage item is to be stored in the bag more, the amount of storage of the added storage item is taken into consideration, so that the zipper of the first storage space expansion unit 10 11 is opened so that the stretchable and contractible portion 12 folded inside the bag is extended so as to form the bag side surface S2 and the opened and closed zipper 1 is opened to open the bag, And can be stably stored using the extended storage space.

The zipper 21 of the second storage space expanding section 20 is opened to open the extension / contraction section 22 (see FIG. 2) when the storage space of the additional storage object is large and the internal storage space expanded by the first storage space extension section 10 is insufficient. Is extended so as to form the bag side surface S2 so that the remaining additional storage can be stably housed in the internal storage space expanded by the second storage space expansion part 20 to close the bag and use the bag .

The shoulder strap 30 and the strap 40 are inserted into the shoulder strap automatic winding portion 31 formed at each end through the unlocking of the respective stoppers 30a and 40a, And the shoulder strap 30 and the strap 40 are automatically wound by the automatic winding function of the automatic strap fastening portion 41. The shoulder strap 30 and the strap 40 are located on the front side S1) and the side surface S2 of the base plate.

The multifunctional bag capable of adjusting the size of the internal space according to the present invention is an industrial applicability since it is possible to repeatedly manufacture the same product in the bag manufacturing industry.

A: Multifunctional bag with adjustable inner space
1: Zipper opening and closing S1: Front
S2: side S3: rear
10: first storage space expanding part 11: zipper
12: stretching part 12a: stretching part face
20: second storage space expanding part 21: zipper
22: stretchable and contractible portion 22a: stretchable and contractible side
30: shoulder strap 30a: stopper
31: Automatic shoulder strap 40: Hand strap
40a: stopper 41: automatic gripper
50: nonwoven fabric 60: inner housing body
60a, 60b, 60c: large, medium, small internal storage body
61: Velcro tape 62: Mesh ball
63: zipper 70: shoe storage pocket

Claims (4)

Wherein a size of a storage space inside the bag can be adjusted, and a shoulder strap and a strap are arranged on the outer surface so as to be adjustable in length and can be opened and closed by a zipper,
The multifunctional bag (A) capable of adjusting the size of the internal space includes:
A first accommodating space expanding portion 10 formed of a zipper 11 and a stretchable and contractible portion 12 formed on the side surface S2 of the bag and extending in the width direction of the side surface S2 of the bag so as to adjust the amount of storage inside the bag, Wow,
A second accommodating space expanding portion 20 formed of a zipper 21 and a stretchable and contractible portion 22 which are formed on the side surface S2 of the bag and extend in the height direction of the front surface S1 of the bag so as to adjust the storage amount of the bag, Wow,
A shoulder strap auto spooling part 31 and a hand strap spooling part 41 which are extended so as to be adjustable in length to suit the physical condition of the bag user and have a function of automatic retracting are provided with shoulder straps 30 And a handle strap 40,
The nonwoven fabric 50 is adhesively fixed to the inner surface of the front surface S1 and the rear surface S3 except for the side surface S2,
A Velcro tape 61 is formed on one side of the nonwoven fabric 50 and is detachable by mutual adhesion of the nonwoven fabric 50 and the Velcro tape 61. On the other side opposite to the side where the Velcro tape 61 is formed, And a plurality of internal receptacles 60 modularized according to sizes of the large 60a, the medium 60b and the small 60c in which the mesh holes 62 are formed. Possible multifunctional bags.
The method according to claim 1,
And a shoe storage pocket (70) is further formed in the inside of the bag as an inner surface of one side surface (S2) on which the nonwoven fabric (50) is not formed.
The method according to claim 1,
The stretchable and contractible portion 12 of the first storage space extension portion 10 and the stretchable and contractible portion 22 of the second storage space extension portion 20 are waterproofed on one side 12a and 22a, And the size of the inner space can be adjusted.
The method according to claim 1,
Characterized in that the shoulder strap (30) and the pull string (40) further include stoppers (30a, 40a) for maintaining the adjusted length after the length adjustment is completed, bag.

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