KR101999923B1 - Backpack having head protecter - Google Patents

Abstract

The present invention relates to a backpack having a head protection tool, which has a head protection tool in a backpack to be used as a protection tool in earthquakes or fires, maintains stability by a backpack body unit to play a role as a head protection tool, provides an integration with a backpack and an aesthetic exterior when used as a backpack in a normal time to improve a design aspect of a backpack, and grants various functions to secure functionality. According to the present invention, the backpack comprises: a backpack body unit which has a pair of shoulder straps; a pair of guide frames which are provided in internal both side units of the backpack body unit, respectively; an elevating frame which is able to elevate along the guide frames; a locking-unlocking means which locks and unlocks the guide frame and the elevating frame when the elevating frame is located at the uppermost portion for the guide frame; an inserting and withdrawing frame which is provided to be able to insert into and withdraw from the elevating frame and is provided to be able to tilt while being prevented from leaving from the elevating frame at a withdrawing upper end portion; a hard shell member which has an upper part thereof coupled to an upper end part of the inserting and withdrawing frame to be able to rotate; a hard shell moving means which makes the hard shell member be moved in a predetermined trace when the hard shell member is guided in an upper end part of the inserting and withdrawing frame; and an elevating operative means which is provided in the backpack body unit and operates to elevate the elevating frame.

Description

[0001] BACKPACK HAVING HEAD PROTECTER [0002] BACKGROUND OF THE INVENTION [0003]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a backpack having a head protector, and more particularly, to a backpack having a head protector which can be used as a head protector when an earthquake or fire occurs, It is able to demonstrate its function as a protective device, to give a sense of unity with the backpack when used as a backpack, and to improve the design side of the backpack by having a beautiful appearance. To a backpack having a headrest.

In the case of parents who raise children, careful care is taken not to hurt their head, but in reality, children are left alone for a while because they can not keep up with their activities for a long time. I can not keep following it all the time.

As a means for protecting the child's head as described above, the child's safety helmet is inspected, and the product size is made small according to the head size of the child,

Such a conventional technique does not guarantee air permeability when a child wears it on his head, and also has a problem that sweat can not be properly discharged. That is, although a child's head protecting cap such as a safety helmet can be used as an external shock protecting means, it is very frequent when the user wears a head protecting cap because of a feeling of stiffness during prolonged use.

As a result of the problem of air permeability after wearing, the helmet can be worn only for a short period of time, and the helmet itself is difficult to carry due to its volume.

On the other hand, children's backpacks (student bags) are often used to transport items in a convenient and comfortable manner while freeing the user's hands. Most of these backpacks have limitations in terms of utilization of the storage space and design aspects, and various functionalities.

Korea Public Utility Model Bulletin 20-2014-0002568 (published on May 4, 2014) Registered Utility Model No. 20-00123105 (registered on May 19, 1998) Registered Utility Model No. 20-00124212 (Registered on October 15, 1998) Korean Utility Model Registration Bulletin 20-01760044 (Announced on March 15, 2000)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a head cover which can be pulled out from a backpack or used as a head protector when an earthquake or fire occurs, It is an object of the present invention to provide a backpack having a head protector capable of enhancing a design aspect of a backpack by giving a sense of unity and a beautiful appearance without a sense of heterogeneity.

In addition, the present invention provides a backpack having a head protector which can reliably maintain a function of a head protector which can be stably held by a body part of a back pack, There is another purpose.

In addition, the present invention is characterized in that the head protector is made of a hard material. In addition to the function as a head protector, a function that can be added, for example, a rain function or a night safety function, The present invention has another object to provide a backpack having a headrest which can be used as a headrest.

The present invention has been made in view of the above problems, and it is an object of the present invention to provide an apparatus and method for controlling the same.

According to an aspect of the present invention, there is provided a backpack comprising: a head protector detachably mounted on an exterior of a backpack body; And a detachment means detachably coupling the backpack body and the headrest to each other, wherein the headrest includes a central body located at a central portion of the backpack body, And a side cover portion located on both side portions of the backpack body portion.

In one aspect of the present invention, the attaching / detaching means is configured to detachably attach the backpack body and the head protecting unit in a Velcro manner, and the attaching / detaching means includes an upper end portion of a pair of shoulder straps provided at one side of the backpack body, And a second coupling means for detachably coupling a lower end portion of the pair of shoulder straps and the other end portion of the head protecting member to each other so as to detachably connect one end portion of the head protector, And the first and second coupling members may be formed of one of a velcro coupling type, a male and female button coupling type, and a coupling ring type.

In one aspect of the present invention, it is preferable that the head protector further includes a grip portion provided at both ends of the central body portion or both upper ends of the side cover portion.

According to another aspect of the present invention, there is provided a backpack comprising: a backpack body portion having a pair of shoulder straps; A pair of guide frames provided on both inner sides of the backpack body; A lifting frame capable of lifting along the guide frame; Locking-unlocking means for locking-unlocking between the guide frame and the lift frame when the lift frame is located at the uppermost position with respect to the guide frame; A pull-out frame provided to be capable of pulling in and pulling out from the lift frame, the pull-out frame being capable of being tilted while being prevented from coming off from the lift frame at a pull-out top position; A hard shell member having an upper portion rotatably coupled to an upper end portion of the draw-out frame; Hard shell moving means for guiding the hard shell member at an upper end of the draw-out frame to move in a predetermined locus; And a lifting frame lifting / lowering operation unit configured to lift / lower the lifting frame, the lifting frame lifting / lowering operation unit being configured on the backpack body.

In another aspect of the present invention, the locking-unlocking means includes a semicircular locking recess formed in either one of both ends of the guide frame and the lower end of the lifting frame, The lifting frame is configured to be able to be pulled in and out from the inside of the lifting frame, and the other end of the lifting frame Sectional frame is formed on one of the inner surface and the opposite outer surface of the lower end portion of the draw-out frame, and the other of the opposite inner surfaces of the upper end portion of the lift frame and the lower end portion of the draw- A receiving projection having an arcuate receiving groove in which the projection is received is projected And the hard shell member is formed in a shape corresponding to the whole or a part of the upper surface portion and the front surface portion of the backpack body portion and a central body portion bent at both sides of the central body portion, And a cover portion.

According to another aspect of the present invention, the hard shell member may further include a handle formed at both ends of the central body portion or at both upper ends of the side cover portion, and may further include a rear wall protection panel provided between the lifting frames.

According to another aspect of the present invention, the hard shell moving means includes a guide protrusion formed on an inner side of an upper end portion of the input / output frame, and a guide protrusion formed on an inner surface of the side cover portion of the hard shell member, Wherein one end portion of the lifting frame lifting and lowering operation means is fixed to the lower portion of the back pack body portion so as to be exposed at the lower portion of the shoulder strap and the other end portion extends upward from the one end portion, And a lifting / lowering frame operating rod guided to the inside of the backpack body portion through the inside of the upper side of the shoulder strap and coupled to the lower end of the lifting frame.

The backpack provided with the head protector according to the present invention provides the following effects.

First, the present invention has an effect that a headrest which can be drawn or detached from a backpack is constituted, so that it can be used as a headrest when an earthquake or a fire occurs.

Second, the present invention has an effect of improving the design aspect of the backpack by providing a sense of unity with the backpack body part when used as a normal backpack and having a beautiful appearance.

Thirdly, the present invention has the effect of reliably exhibiting its function as a head protector by allowing the head protector configured to be drawn out or extendable from the back pack to be stably held by the body of the back pack.

Fourth, the present invention has the effect of securing competitiveness of a product because it can add various functionalities by providing a rain protection function and / or a night safety function in addition to the function as a head protection.

The effects of the present invention are not limited to those mentioned above, and other solutions not mentioned may be clearly understood by those skilled in the art from the following description.

1 is a view showing a use state of a backpack having a head protector according to a first embodiment of the present invention.
2 is a view illustrating a state in which a headrest is used in a backpack having a headrest according to a first embodiment of the present invention.
3 is a view illustrating a state in which a backpack having a head protector according to a second embodiment of the present invention is used as a backpack.
4 is a view illustrating a state in which a cover portion of a hard shell member is opened in a backpack having a head protector according to a second embodiment of the present invention.
5 is a front view of the hard shell member in a backpack having a head protector according to a second embodiment of the present invention.
FIG. 6 is a rear view of a hard shell member in a backpack having a head protector according to a second embodiment of the present invention. FIG.
FIGS. 7 to 12 are views showing a process of using a hard shell member as a head protector in a backpack having a head protector according to a second embodiment of the present invention.

Further objects, features and advantages of the present invention will become more apparent from the following detailed description and the accompanying drawings.

Before describing the present invention in detail, it is to be understood that the present invention is capable of various modifications and various embodiments, and the examples described below and illustrated in the drawings are intended to limit the invention to specific embodiments It is to be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Also, the terms " part, "" unit," " module, "and the like, which are described in the specification, refer to a unit for processing at least one function or operation, Software. ≪ / RTI >

In the following description of the present invention with reference to the accompanying drawings, the same components are denoted by the same reference numerals regardless of the reference numerals, and redundant explanations thereof will be omitted. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a backpack having a head protector according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

First, a backpack having a head protector according to a first embodiment of the present invention will be described in detail with reference to FIGS. 1 and 2. FIG. FIG. 1 is a view showing a state of use of a backpack having a head protector according to a first embodiment of the present invention. FIG. 2 is a side view of a backpack having a head protector according to a first embodiment of the present invention. Fig.

As shown in Figs. 1 and 2, in the backpack according to the first embodiment of the present invention, in the backpack, the opposite side of the side where the pair of shoulder straps is formed (110) detachably attached to the backpack body (10) of the backpack (front side exposed to the outside); And detachment means (not shown) detachably coupling the backpack body part 10 and the head protector 110 to each other.

The backpack body portion 10 has a conventional backpack form. Preferably, the backpack body 10 according to the present invention is made of a material capable of maintaining the shape of the backpack, and an opening / closing cover is preferably formed on the upper surface of the backpack body 10 in order to insert and remove the object into the receiving space.

In the present invention, the backpack body 10 has a box shape of a hexahedron, and the top surface of the backpack body 10 is rounded, and an opening / closing cover is formed on the top surface thereof.

As described below, the backpack body 10 can be detachably attached to the backpack 110 by the attaching / detaching means, so that the backpack body 110 can be applied to the conventional backpack.

Next, the headrest 110 includes a central body part 111, which is located in the backpack body part 10 and is formed in a shape corresponding to the front part of the backpack body part 10, And a side cover part 112 integrally formed on both sides of the backpack body part and positioned at both side parts of the backpack body part.

The central body portion 111 and the side cover portion 112 of the head protector 110 may be formed in a shape corresponding to the front surface and both side surfaces of the back cover body portion 10.

In addition, the head protector 110 may further include a handle (not shown). For example, the handle may be an annular handle formed at both ends of the central body part 111 or both upper ends of the side cover part 112.

In addition, in another example, the handle may be configured to be pulled in and drawn out from one end face (lower end face in FIG. 1) or one end (lower end in FIG. 1) of the side cover portion 112.

Specifically, the grip portion has a storage groove formed on the upper surface of the side cover portion 112 of the head protector 110, and is pulled out so as to be prevented from falling out of the grip portion, and is retracted or retracted (Preferably square) ring shape, and the outer side edge thereof may be formed with a latching jaw or a latching protrusion so as not to be completely housed in the storage groove.

In addition, in another embodiment of the pull-in and pull-out handle, the handle is rotatably coupled at one end inside the one end of the side cover part 112 of the head protector 110 and the other end is at the free end, And the other end thereof may be exposed from the side cover portion 112.

Next, the attachment / detachment means is not particularly limited as long as it is detachably coupled between the backpack body 10 and the head protector 110 and can be securely fixed. However, it is preferable that the head protection unit 110 can be easily removed from the backpack body unit 10 in consideration of the use of children such as a kindergarten or elementary school students.

For example, the attachment / detachment means may be configured to detachably attach the backpack body 10 and the head protector 110 using a velcro system (aka, a sock).

In addition, the attachment / detachment means may further include an auxiliary attachment / detachment means, wherein the auxiliary attachment / detachment means includes a first attachment / detachment means for detachably coupling the shoulder strap (specifically, the upper end of the shoulder strap) And a second coupling hole for detachably coupling a shoulder strap (specifically, a lower end portion of the shoulder strap) and the other end portion of the head protector 110.

The first and second coupling holes may be formed of a Velcro coupling method, a male and female button coupling method, a coupling ring method, or the like. In such a first coupling means and a second coupling means as well, the user can easily fall off in consideration of the fact that the child is a child.

Next, a backpack having a head protector according to a second embodiment of the present invention will be described in detail with reference to FIGS. 3 to 12. FIG. FIG. 3 is a view showing a state in which a backpack having a head protector according to a second embodiment of the present invention is used as a backpack, FIG. 4 is a perspective view of a backpack having a head protector according to a second embodiment of the present invention, 5 and 6 are views showing a state in which a hard shell member is partially drawn out from a backpack having a head protector according to a second embodiment of the present invention, Fig. 6 is a view as seen from the rear side. Fig. FIGS. 7 to 12 are views showing a process of using a hard shell member as a head protector in a backpack having a head protector according to a second embodiment of the present invention.

In the description of the headrest according to the second embodiment described below, the same components as those described in the first embodiment are given the same reference numerals.

A backpack having a head protector according to a second embodiment of the present invention includes a backpack body 10 having a pair of shoulder straps 11 as shown in Figs. 3 to 12; A pair of guide frames (not shown) provided at both inner side portions of the backpack body 10; A lift frame (210) capable of being raised and lowered along each of the guide frames; Locking-unlocking means for locking-unlocking between the guide frame and the lift frame (210) when the lift frame (210) is positioned at the lower end and / or the upper end with respect to the guide frame; A take-out frame 220 provided at each of the lift frames 210 and capable of being drawn in and pulled out of the lift frames 210 and tilting while being prevented from falling off from the lift frame 210 at the uppermost position of the draws; A hard shell member (230) having an upper end rotatably coupled to an upper end portion of the inlet / outlet frame (220); Hard shell moving means for guiding the hard shell member 230 at an upper end of the drawing-out frame 220 to move in a predetermined locus; And a lifting / lowering frame lifting / lowering operation unit configured to lift / lower the lifting frame 210 in the backpack body 10.

The backpack body portion 10 has a conventional backpack form. Preferably, the backpack body 10 according to the second embodiment of the present invention may be made of a hard material capable of maintaining the shape of the backpack, (12) is formed.

The backpack body 10 has a box shape of a hexahedron, each corner has a curved surface, an upper surface is formed as a whole, and an opening / closing cover 12 is formed on the upper surface thereof.

The opening / closing cover 12 may be integrally opened and closed through an opening / closing member 231a formed on the hard shell member 230 described below and a magnet member. The hard shell member 230 So that it can be easily separated from the opening and closing member 12 of the backpack body 10. [

Next, a guide frame (not shown) and a lift frame 210 formed on both inner side portions of the backpack body 10 are moved in a direction in which the lift frame 210 can be moved up and down smoothly with respect to the guide frame It is not particularly limited as long as it is a constitution.

For example, the guide frame may comprise a pair of cross-section "C" frames, and a roller member may be provided on the frame so as to smoothly move along the " C "

In addition, the guide frame may have a curvature with a predetermined curvature toward the shoulder strap toward the upper end toward the upper end. This allows the user to move one end (upper end portion) of the hard shell member 230, which is located above the rear of the user's head, It is possible to easily grasp the grip portion formed on the handle.

It is preferable that the present invention further includes a rear head protecting panel 211 connected between the pair of lifting frames 210 and made of a hard material, preferably a flame-retardant material (see FIGS. 5 and 9) ). When the hard shell member 230 is used, the rear face protecting panel 211 is lifted and lowered together with the lifting frame 210 to protect the back of the user.

Next, the locking-unlocking means is formed between the guide frame and the lifting frame 210 so that the lifting frame 210 is locked with respect to the guide frame, and can be easily unlocked in a fixed state.

For example, the locking-unlocking means may include a semicircular locking groove formed in a lower end portion and an upper end portion of the guide frame and a lower end portion of the lifting frame 210, and a lower end portion and an upper end portion of the guide frame, And a locking ball that is elastically supported so that a part of the lower end of the frame 210 is exposed to the outside. Here, the locking groove may be formed only at the upper end of the guide frame.

The draw-out frame 220 may be inserted into or withdrawn from the inside of the lift frame 210. In other words, the draw-out frame 220 may be telescopic to the lift frame 210 .

The upper end of the lifting frame 220 and the lower end of the lifting frame 220 may have a structure in which the lifting frame 220 is prevented from falling off, And a part of the upper surface (shoulder strap side surface) of the upper portion of the lifting frame can be cut.

The engaging portion includes a section circular protrusion protruded from one of an opposing inner surface of the upper end of the lifting frame and a facing outer surface of the lower end of the lifting frame 220, And a receiving protrusion formed on one of the opposite outer surfaces of the lower end of the frame 220 and having an arcuate receiving groove in which the circular protrusion is received.

The hard shell member 230 includes a central body portion 231 formed in a shape corresponding to the upper face portion and the front face portion or a portion of the backpack body portion 10, And a side cover part 232 which is integrally bent at both side parts of the backpack body part 10.

The central body portion 231 and the side cover portion 232 of the hard shell member 230 may be formed to correspond to the front and both side surfaces of the back cover body 10.

In addition, the hard shell member 230 may further include a handle 233. For example, as shown in the drawing, the handle 233 may include an annular handle formed at both ends of the central body 231 or both upper ends of the side cover 232.

Further, although not shown in the drawing, the handle 233 can be configured to be pulled out and drawn out to one end face or one end side of the side cover portion 232.

Specifically, in one embodiment, the handle may have a circular or polygonal shape (preferably a circular shape or a polygonal shape) which can be withdrawn and withdrawn from or retracted from the upper side of the side cover portion 232 of the hard shell member 230, And the outer edge of the outer edge may be formed with a latching jaw or a latching protrusion so as not to be completely housed in the storage groove.

In addition, in another embodiment, the handle 233 is rotatably coupled at one end inside the one end of the side cover portion 232 of the hard shell member 230, and the other end is formed as a free end, The end portion may be exposed from the side cover portion 232.

The hard shell moving means for guiding the hard shell member 230 at an upper end of the draw-out frame 220 and moving the hard shell member 230 in a predetermined locus may include a guide protrusion formed inside the upper end portion of the input / output frame 220, A guide groove may be formed on the inner surface of the side cover portion 232 of the hard shell member 230 so that the guide protrusion is inserted and guided to form a predetermined curvature or a predetermined locus.

The lifting frame lifting and lowering operation means constructed in the backpack body portion 10 and operated to raise and lower the lifting frame 210 includes one end portion of the lifting frame lifting and lowering operation means which is provided at the lower portion of both shoulder straps 11 of the backpack body portion 10, And the other end extends upward from the one end and is guided to the inside of the backpack body 10 through the inside of the upper side of the shoulder strap 11 at the extended end thereof, And a lifting frame operating strap 240 coupled to a lower end of the lifting frame 210.

One end of the lifting frame manipulation end 240 is exposed on the upper side of both shoulder muscles 11 of the backpack body 10 and the other end of the lifting frame manipulation end 240 is provided on one side of the shoulder strap 11 So that it can be guided to the inside of the backpack body 10 and coupled to the lower end of the lifting frame 210.

5 and 6, the lifting frame lifting / lowering operation means constructed as described above pulls the lifting frame 210 connected to the other end of the lifting frame operating strap 240 when the lifting frame operating strap 240 is pulled And the lifting frame 210 is lifted along the guide frame.

Meanwhile, in the backpack having a head protection device according to the present invention, the headrest of the first embodiment and the hard shell member of the second embodiment may further include position tracking means for tracking the position.

Specifically, the position tracking means includes a GPS module to which a unique ID is assigned, a power source for supplying power to the GPS module, an on / off switch for turning on / off the power source, And a communication module for communication.

In addition, the position tracking means may include a detection sensor for detecting the ascending and descending of the lift frame, and an emergency circuit module for activating the GPS module when a detection signal is detected by the detection sensor even in the off state of the on / off switch Wherein the emergency circuit module activates the GPS module and transmits an emergency message to a user terminal device (e.g., a smart phone) provided with an interlocking application for receiving a unique ID and a position signal from the communication module .

As described above, the backpack having the head protector of the present invention is used for disaster prevention for protecting the head from the consideration that it is used in disasters such as earthquake or fire, and in the case where the evacuation is not possible, And the emergency situation can be quickly transmitted to the user terminal device such as the parent.

Meanwhile, in the backpack having the head protector according to the present invention, the head shield of the first embodiment or the hard shell member of the second embodiment may further include a raincoat member that is housed inside and can be deployed when it is exposed to rain.

In addition, in the backpack having the head protecting unit according to the present invention, the headrest of the first embodiment or the hard shell member of the second embodiment is made of a hard material, so that the head- A display control circuit module for controlling display of the LED pattern or character set by the user through the LED group, and a pattern or character displayed through the pattern control circuit module to be set by a user And may further include an operation panel.

Such a pattern or character display through the LED light can not only cause a child to be interested but also can prevent a safety accident by ensuring the visibility of a driver during rainfall or at night.

As described above, the backpack having a head protector according to the present invention can be used as a head protector (disaster prevention protector) in case of an earthquake or a fire, and can be used as a backpack There is an advantage that the design aspect of the backpack can be improved by giving a sense of unity with the backpack body part and having a beautiful appearance.

Further, according to the present invention, it is possible to reliably hold the head protector which can be drawn out or extended from the back pack by the body part of the back pack, so that it can reliably exhibit its function as a head protector. In addition to its original function as a head protector, It is possible to add various functionalities by providing a rain protection and / or a bag protection function and / or a night safety function, thereby having an advantage of securing competitiveness of a product.

The embodiments and the accompanying drawings described in the present specification are merely illustrative of some of the technical ideas included in the present invention. Therefore, it is to be understood that the embodiments disclosed herein are not for purposes of limiting the technical idea of the present invention, but rather are not intended to limit the scope of the technical idea of the present invention. It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

10: Backpack body part
11: Shoulder strap
12, 231a:
110: Headgear
111, 231: central body part
112, 232: side cover portion
210: lift frame
211: occiput protection panel
220: Incoming / outgoing frame
230: absence of hard shell
233:
240: lifting frame operating strap

Claims (7)

delete delete delete In the backpack,
A backpack body portion having a pair of shoulder straps;
A pair of guide frames provided on both inner sides of the backpack body;
A lifting frame capable of lifting along the guide frame;
Locking-unlocking means for locking-unlocking between the guide frame and the lift frame when the lift frame is located at the uppermost position with respect to the guide frame;
A pull-out frame provided to be capable of pulling in and pulling out from the lift frame, the pull-out frame being capable of being tilted while being prevented from coming off from the lift frame at a pull-out top position;
A hard shell member having an upper portion rotatably coupled to an upper end portion of the draw-out frame;
Hard shell moving means for guiding the hard shell member at an upper end of the draw-out frame to move in a predetermined locus; And
And a lifting / lowering frame lifting / lowering operation unit configured to lift / lower the lifting frame.
backpack.
5. The method of claim 4,
Wherein the locking-unlocking means comprises: a semicircular locking recess formed in either one of the both ends of the guide frame and the lower end of the lifting frame; and a pair of locking grooves formed at both ends of the guide frame and the other of the lower ends of the lifting frame, And a locking ball provided so as to be elastically supported to be exposed,
Wherein the inlet / outlet frame is configured to be capable of being drawn in and out of the inside of the lift frame,
Wherein one end face of one of the opposing inner surface of the upper end portion of the lifting frame and the opposite outer surface of the lower end portion of the pull-out frame is protruded and the opposite inner surface of the upper end portion of the lifting frame is opposed to the lower end portion of the pull- A receiving projection having an arcuate receiving groove in which the circular projection is received in the other of the outer surfaces is protruded,
The hard shell member includes a central body portion formed in a shape corresponding to the whole or a part of the upper surface portion and the front surface portion of the backpack body portion and a side cover portion bent at both sides of the central body portion and positioned at both side portions of the backpack body portion Characterized in that
backpack.
6. The method of claim 5,
Wherein the hard shell member further comprises a handle formed at both end portions of the central body portion or both upper end portions of the side cover portion,
And a rear wall protection panel provided between the lifting frames.
backpack.
5. The method of claim 4,
The hard shell moving means includes a guide protrusion formed on an inner side of an upper end portion of the lead-out frame, and a guide groove formed on an inner surface of the side cover portion of the hard shell member to guide the guide protrusion, Lt; / RTI >
And the other end of the lifting frame lifting and lowering operation means extends upward from the one end of the lifting frame lifting and lowering operation means and is exposed at the lower end of the shoulder strap of the backpack body portion, And a lifting frame operating cord guided inward of the backpack body portion and coupled to a lower end portion of the lifting frame.
backpack.

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