KR101132100B1 - Buckle for shoulder strap of knapsack - Google Patents

Abstract

The present invention provides a breast chamfer containing a plug member, a socket member and a lifting buckle, any one of the plug member and the socket member includes a lifting buckle integrally, and another one is a magnet built-in to attach various props It relates to a chest buckles buckle of the backpack that can be carried by.

Backpack, plug member, socket member, lifting buckle, magnet

Description

Buckle for shoulder strap of backpack {Buckle for shoulder strap of knapsack}

The present invention relates to a buckle for the chest buckles of the backpack, in particular, while being connected to the shoulder buckles to adjust the height along the shoulder buckles, while simplifying the configuration to improve the assembling, can be made easy to use hose or bucket The present invention relates to a buckle for the chest buckles of a backpack that can be easily attached and carried with other accessories.

1 is a perspective view showing a general backpack as an example, as described above, the back of the backpack (1) is equipped with various types of melodies for tying the backpack, that is, the basic shoulder buckles (2) for hanging on the shoulder, Waist melbang (3) for tying on the waist and chest melbang (4) to be attached to the chest is provided.

Among them, chest bangbang (4) is to prevent the top of the backpack to lean back, so that the backpack can be more stably adhered to the body to eliminate the slack of the backpack and to maintain a stable wearing state.

In addition, the chest bangbang (4) is to be able to adjust the height to fit the body shape according to the wearer of the backpack by the lifting is made while supporting both ends of the shoulder bangbang (2).

In other words, the middle of the breast melch (4) is connected to be detachable by the fastening buckle (5) consisting of male and female, and the connection buckle (6) is installed at both ends of the breast buckles (both ends of the connection buckle) The end of 4) is connected to surround the shoulder bangbang (2), the support piece (7) for guiding the lifting of the chest bangbang (4) is further installed on the outer surface of the shoulder bangbang (2) the connection buckle (6) The configuration is coupled to the.

Therefore, when you want to adjust the height of the chest bangbang (4), while holding the shoulder bangbang (2) while holding each of the two ends of the chest bangbang (4) to push up or down, the connection buckle (6) and shoulder bangbang There is a problem that the lifting operation is very inconvenient and not easily adjusted because it is supported by both sides of the support piece.

In addition, the conventional melt-melt connection structure as described above has a problem in that the configuration is complicated, the productivity is lowered with the increase in manufacturing cost, and the appearance is not beautiful.

In order to solve this problem, the present applicant has developed a lifting device of the breast Melbang and registered in advance patent registration Nos. 10-0501498 and 10-0547406, of which 10-0547406 is shown in FIG. Looking at this, in the backpack 21, which is basically provided with a shoulder bangbang 22, a waist bangbang 23 to be attached to the waist and a chest bangbang 24 to be tied to the chest, it becomes a belt-shaped shoulder bangbang ( A support piece 27 having one side sealed up and down long on the outer surface of the outer plate 22 and a rail portion 29 having a circular cross section formed on the other side thereof; One side is connected to the chest lubrication 24, and the other side comprises a lifting buckle 26 is formed so that the rail groove 29 is fitted to the rail portion 29 of the support piece 27.

And, the breast bangbang 24 is provided with a fastening buckle 25 to be able to connect and disconnect the chest bangbang 24, one end of the support piece 27 is formed with a ring portion 31 It is possible to temporarily hold an accessory such as a hose or file in a bucket.

Accordingly, when it is desired to adjust the height of the breast bangbang 24, the height of the chest bangbangbang 24, or simply lifting the buckle 26 to the rail portion 27 to move the upper or lower simply by raising the height In addition to being able to adjust, a means for temporarily fixing a hose or the like to be withdrawn from the bucket in the backpack has been provided to provide a variety of convenience.

However, in the prior art as described above, the breast buckwheat is provided with a fastening buckle, which is distinguished by a plug member and a socket member, and a strap as a breast bucket for connecting the plug member and the socket member with the lifting buckle, respectively. Due to the complexity, the productivity of the product is lowered, and it is not only inconvenient to use, such as adjusting the straps on both sides at the time of use, but also has a problem that its appearance is not good as the part exposed on the front of the chest during use.

In addition, the fixing means for pulling out and fixing the hose or string of the water tank is merely used to support the elasticity by inserting the hose or string, so that the supported state is not stable, and it is inconvenient to insert and remove the consumer. There was a problem that it is difficult to apply to fix various props that can be easily carried when climbing.

Therefore, there is a need for a technology that can solve the above conventional problems.

The present invention, in order to solve the above problems, the support piece formed of the rail portion of the circular cross section is respectively installed in the shoulder bangbang on both sides and the lifting buckle having a rail groove coupled to the rail portion is connected to each support piece, Has a fastening buckle consisting of a plug member and a socket member is provided in the chest buckles buckle of the backpack to be connected to each lifting buckle, either of the plug member or the socket member of the fastening buckle end opposite to the coupling direction of each other Is characterized in that it is formed integrally with the lifting buckle.

Therefore, by reducing the number of components constituting the breast bangbang not only increases the productivity of the product and reduce the manufacturing cost, but also to eliminate the cumbersome appearance due to excessive use of the strap and to create a beautiful appearance.

As an example of embodying the above features, the plug member includes a base and a pair of lock arms projecting from the base and elastically coupled to the socket member, and a guide rod and base protruding from the base in the middle of each lock arm. It comprises a strap connecting bar formed in the rear, the socket member consists of a side wall connecting the upper plate and the lower plate and the upper plate and the lower plate to form a chamber in which the tip is opened to receive the lock arm and the guide rod and the lock arm It is provided with a locking portion in the chamber so that the front end of the fastening, the rear end of the lifting buckle having a rail groove can be formed integrally.

The rail groove may be configured to be inclined form in accordance with the installation state of the rail unit attached to the shoulder chamfer.

Another feature of the present invention, the support piece is formed in the shoulder portion on both sides of the rail portion of the circular cross section is provided with a lifting buckle having a rail groove coupled to the rail portion is connected to each support piece, the plug member and the middle In the buckle for chest buckles of the backpack is provided with a fastening buckle consisting of a socket member to be connected to each lifting buckle, either of the plug member or the socket member of the fastening buckle is magnet storage at the opposite end of the coupling direction A magnet is accommodated in this magnet housing portion.

Accordingly, a magnet or a metal is attached to a prop to be carried and attached to a fastening buckle formed with the magnet housing, and can be easily carried. For example, when carrying a bucket in a backpack and a hose is drawn out of the bucket, the magnet is attached to the end of the hose. If the metal member is attached to each other in conjunction with the magnet of the magnet housing portion is attached to each other can be conveniently used without the need for cumbersome operation to separate or separate.

The magnet housing may be installed by inserting the magnet by the insert injection, alternatively the inlet is formed to the outside of the magnet housing, the magnet is introduced through the inlet, the locking jaw is formed in the inlet or the inlet so that the magnet does not escape Closing plug can be installed.

In addition, a seating groove may be further formed on an outer surface corresponding to the magnet housing, so that a magnet or metal attached to an external accessory may be seated, thereby allowing stable portability.

Another feature of the present invention, the support piece is formed in the shoulder portion of the both sides of the rail section of the circular cross section is provided, each lifting buckle having a rail groove coupled to the rail portion is connected to each support piece, the plug member in the middle And a fastening buckle consisting of a socket member and connected to each of the lifting buckle, wherein the chest member has a buckle, wherein the plug member protrudes from the base and the base and elastically couples to the socket member. A magnet housing is formed at the rear of the strap connection bar, including a guide rod protruding from the base and a strap connecting bar formed at the rear of the base in the middle of the arm and each lock arm. An inlet is formed and closed by a stopper, and one end of the contact surface of the inlet and the stopper corresponds to each other. The rim groove and the engaging protrusion is formed to maintain the combined state, the socket member is formed of a side wall connecting the upper plate and the lower plate and the upper plate and the lower plate to form a chamber with the tip opened to accommodate the lock arm and the guide rod, A locking portion is provided in the chamber to fasten the front end of the lock arm, and a lifting buckle having a rail groove is integrally formed at a rear end thereof.

Accordingly, by improving the productivity and beauty of the appearance by reducing the components constituting the breast-melt, it is possible to easily attach and carry the accessories by a magnet.

The present invention provides an effect of improving the productivity by reducing the number of parts in the breast-melt, thereby reducing the cost.

The present invention provides the effect that can be used conveniently to the chest buckwheat by reducing the number of straps for adjusting the chest buckwheat, and can provide a buckle for the chest buckwheat bag having a more beautiful appearance.

In particular, the present invention provides an effect that can be easily carried by simply attaching a hose drawn from a water bottle or other simple items to be easily carried on the chest.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

Figure 3 is a front view showing an example of a breast buckwheat according to the present invention, Figure 4 is a perspective view showing an example of the backpack to which the present invention is applied, Figure 5 is a perspective view showing a state in which the fastening buckle is separated in Figure 4, 6 is an exploded perspective view showing an example of a fastening buckle according to the present invention.

3 to 6, the chest bangbang 104 is installed in the middle of the upper side of the shoulder bangbang 102 installed on the back of the backpack 101, the plug member 111 in the middle of the chestbangbang 104 And the socket member 112 is provided with a fastening buckle 110 which is detachable, and the lifting buckle 115 is provided at both ends of the chest buckles 104.

And although the support piece 107 is provided in the outer side surface of the shoulder bag 102, the lifting buckle 115 is coupled to this support piece 107 so that it can move up and down.

The support piece 107 is formed in a plate shape is sewn on the shoulder chamfer 102 is fixed up and down long, and comprises a rail portion 108 of a circular cross section formed long one outer periphery.

The support piece 107 is installed to form a curved surface while slightly inclined from the shoulder melch 102, which facilitates the lifting operation of the chest bangbang 104, while the gap between the two support pieces according to the lifting operation By changing, it can act to tighten or loosen melbang itself.

The lifting buckle 115 has a connecting portion 116 is formed on one side is connected to the strap (S) of the chest bangbang 104, the rail groove 117 is formed on the other end is the rail groove ( The rail portion 108 of the support piece 107 is fitted to 117.

The fastening buckle 110 to fasten and separate the chest bangbang 104 is composed of a plug member 111 and the socket member 112 as described above, any one of the plug member or the socket member is coupled to each other An end opposite to the direction is integrally formed with the lifting buckle.

In the drawing, the lifting buckle 115 is shown integrally formed on one side of the socket member 112. Looking at this, basically, the plug member 111 protrudes from the base 121 and the base 121 and is a socket member. A pair of lock arms 122 elastically coupled to 112 and a guide rod 123 protruding from the base 121 in the middle of each lock arm 122 and a strap formed rearward of the base 121. It includes a connecting bar 124, the socket member 112 is composed of a top plate and a lower plate and the side wall connecting the upper plate and the lower plate opening the end to receive the lock arm 122 and the guide rod 123 And a locking portion 126 is formed in the chamber 125 so that the front end of the lock arm 122 is fastened, and a lifting buckle 115 having a rail groove 117 is integrated at the rear end thereof. The rail portion 108 is formed in the rail groove 117 It becomes possible to fit the same.

Therefore, the plug member 111, which is not provided with the lifting buckle integrally, is connected to the separate lifting buckle 115 by the strap S connected to the strap connecting bar 124.

Although not shown in the drawings, the lifting buckle is integrally formed on the plug member as opposed to the above, and the socket member may be configured to be connected to a separate lifting buckle by a strap.

In addition, the fastening buckle 110 of the present invention is provided with a magnet (M1), the magnet (M1) is a magnet housing portion 130 formed in any one selected of the plug member 111 or the socket member 112. It is provided in the form accommodated in. That is, either one of the plug member 111 or the socket member 112 is provided with a magnet housing portion 130 at the end opposite to the coupling direction of each other, the magnet M1 is accommodated in the magnet housing portion 130 have.

In the figure, a form in which the magnet M1 is accommodated in the plug member 111 is illustrated, and this fastening buckle is illustrated in detail in FIGS. 7 to 9.

That is, Figure 7 is an exploded perspective view of the plug member showing a state in which the magnet is coupled, Figure 8 is an exploded cross-sectional view of the plug member showing a state in which the magnet is coupled, Figure 9 is a coupling cross-sectional view.

Referring to these drawings, the plug member 111 may protrude from the base 121 and the base 121 and a pair of lock arms 122 and each lock arm that are elastically coupled to the socket member 112. The magnet to the rear of the strap connecting bar 124, including a guide rod 123 protruding from the base 121 in the middle of the base 121, and a strap connecting bar 124 formed to the rear of the base 121. The accommodating part 130 is formed, and the magnet M1 is accommodated therein.

Of course, the lifting buckle 115 is integrally formed as described above in the socket member 112 coupled to the plug member 111. For example, when the magnet housing is formed in the socket member 112, the plug is connected. It is preferable that the lifting buckle is formed integrally with the member 111.

The magnet housing portion 130 is formed of a circular cross-sectional space is preferably accommodated in the disk-shaped magnet (M1), the outer surface of the magnet housing portion 130 is opened to form an inlet 131.

The magnet M1 is introduced through the inlet 131, and a stopper 132 is coupled to the inlet 131 to prevent the magnet M1 from being separated.

When the stopper 132 is coupled to the inlet 131, the stopper 132 is in close contact with the inlet 131 and has a shape corresponding to the appearance of the plug member 111. The stopper 132 is caught by a contact surface between the inlet 131 and the stopper 132. The groove 134 and the engaging protrusion 135 are formed to be coupled to each other so that the coupled state is maintained without being separated.

In the drawing, but configured a stopper 132 to prevent the separation of the magnet, in addition to this can be presented in various forms. That is, the magnet M1 may be configured to be embedded in the magnet housing 130 of the plug member 111 by insert injection, and the magnet is formed by forming the width of the inlet 131 smaller than the diameter of the magnet. The inlet may be inserted into the magnet accommodating part 130 in a form of press-fitting the inlet so that it may not be easily detached, or a locking jaw may be formed on one surface of the inlet 131 to prevent the indented magnet from being separated.

On the other hand, a seating groove 140 is formed on the outer surface of the plug member 111 corresponding to the magnet housing portion 130, the seating groove 140 is substantially coincident with the magnet housing portion 130 therein. Is formed in the position, the seating groove 140 and the magnet housing 130 is connected by a hole 141 so that the magnetic force of the magnet mounted inside the magnet housing 130 is easily acted to the outside .

Referring to the operation of the present invention configured as described above are as follows.

If you want to adjust the height of the chest melody 24, the lifting buckle (26) or the lifting buckle holding the fastening buckle 110 is formed integrally with the rail 29, the lifting buckle (26) Guided to the portion 108 is to be lifted.

Chest melody 104 is coupled and separated by the detachment of the plug member 111 and the socket member 112 of the fastening buckle 110, the strap (S) when adjusting the length of the bust 104 In the above embodiment of the present invention, since the socket member 112 is formed integrally with the lifting buckle, only the strap S connected to the plug member 111 needs to be adjusted. It can lessen the inconvenience.

On the other hand, the magnet (M1) is installed on the plug member 111, when carrying a variety of props, such that the magnet or metal attached to the accessory to be carried in the state attached to the plug member 111 For this purpose, FIG. 10 illustrates an example in which the hose 151 is taken out and carried in a state where the bucket 150 is stored in the backpack.

That is, the hose 151 is connected to the bucket 150 so as to prevent the inconvenience of opening the backpack to drink the water of the bucket 150 stored in the backpack 101 while carrying the backpack through the hose 151 if necessary. In this case, the magnet M2 is attached to the distal end of the hose 151, so that the magnet M2 is magnet M1 of the magnet housing 130 according to the present invention. ) To be fixed while attached.

In particular, the magnet (M2) of the hose 151 can be seated in the seating groove 140 of the plug member 111 so as not to be easily separated even if caught on the surrounding objects during movement, separated hose due to the characteristics of the magnet When the magnet M2 of the hose 151 is thrown to a position adjacent to the plug member 111, the magnet M2 of the hose 151 is seated by the mutual magnetic force of the magnet M1 stored in the plug member 111. ) So that you can use conveniently.

The present invention provides a more beautiful appearance by simplifying the configuration of the breast-melt, and provides excellent convenience by allowing the various accessories to be easily attached and carried by a magnet.

The present invention as shown and described above is not intended to be limited to the above embodiments, and may be implemented in various forms without departing from the spirit of the present invention. For example, the shape of the plug member 111, the socket member 112 and the lifting buckle 115 may be changed in various forms, and the shape or position of the magnet M1 can be changed as necessary. Modifications may be made.

In particular, the plug member 111 and the socket member 112 may be integrally coupled with the lifting buckle 115, the position where the magnet housing portion is formed, and the like may be selected in combination with each other.

1 is a perspective view showing an example of a conventional general backpack.

Figure 2 is a perspective view showing an example of another conventional backpack.

Figure 3 is a front view showing an example of the breast bangbang according to the present invention.

4 is a perspective view showing an example of a backpack according to the present invention.

Figure 5 is a perspective view of the fastening buckle of the breast buckles in Figure 4 removed.

Figure 6 is an exploded perspective view of the fastening buckle buckle for breast according to the present invention.

Figure 7 is an exploded perspective view of the plug member in FIG.

8 is an exploded cross-sectional view of FIG. 7.

9 is a cross-sectional view of the coupling buckle buckle for breast according to the present invention.

10 is a perspective view of a backpack showing a state of use according to the invention as an example.

※ Explanation of code about main part of drawing ※

101: backpack 102: shoulder

104: chest bang 107: support

108: rail portion 110: fastening buckle

111 plug member 112 socket member

115: lifting buckle 117: rail groove

121: donation 122: lock arm

123: guide rod 124: strap connection bar

125: chamber 126: engaging portion

130: magnet housing 131: entrance

132: stopper 134: locking groove

135: locking projection 140: seating groove

M1, M2: Magnet S: Strap

Claims (17)

A support piece having a rail section having a circular cross section is installed in each of the shoulder buckles on each side, and a lifting buckle having a rail groove coupled to the rail unit is connected to each support piece, and a fastening buckle composed of a plug member and a socket member is formed in the middle. In the chest buckles buckle of the backpack is provided to be connected to each lifting buckle, One of the plug member or the socket member of the fastening buckle, the buckle for chest buckles of the backpack, characterized in that the end opposite to the coupling direction of each other is formed integrally with the lifting buckle. The method of claim 1, The plug member includes a base and a pair of lock arms projecting from the base and elastically coupled to the socket member, a guide rod protruding from the base in the middle of each lock arm, and a strap connecting bar formed at the rear of the base; , The socket member includes a top plate and a bottom plate, and a side wall connecting the top plate and the bottom plate to form a chamber having a tip open to receive the lock arm and the guide rod, and having a locking portion in the chamber to fasten the tip of the lock arm. , Buckle for the chest buckles of the backpack, characterized in that the lifting buckle having a rail groove at the rear end is formed integrally. The method of claim 1, The plug member includes a base and a pair of lock arms protruding from the base and elastically coupled to the socket members, and a guide rod protruding from the base in the middle of each lock arm. Lifting buckle having is formed integrally, The socket member includes a top plate and a bottom plate, and a side wall connecting the top plate and the bottom plate to form a chamber having a tip open to receive the lock arm and the guide rod, and having a locking portion in the chamber to fasten the tip of the lock arm. In the rear, the strap buckle for the chest of the backpack, characterized in that a bar for connecting the strap is formed. The method according to claim 2 or 3, The rail groove is a buckle for the chest buckles of the backpack, characterized in that the inclined shape with respect to the perpendicular surface in the coupling direction of the socket member and plug member. The support pieces formed with the rail section of the circular cross section are respectively installed in the shoulder buckles on both sides, and the lifting buckle having the rail grooves coupled to the rail parts is connected to each support piece, and the fastening buckle composed of the plug member and the socket member is in between. In the chest buckles buckle of the backpack is provided to be connected to each lifting buckle, Any one of the plug member or the socket member of the fastening buckle is provided with a magnet housing portion at the end opposite to the coupling direction of each other, the magnet buckle for a backpack, characterized in that the magnet is stored in the magnet housing portion. The method of claim 5, The plug member includes a base and a pair of lock arms projecting from the base and elastically coupled to the socket member, a guide rod protruding from the base in the middle of each lock arm, and a strap connecting bar formed at the rear of the base. The magnet housing is formed in the rear of the strap connecting bar, the magnet is accommodated, The socket member includes a top plate and a bottom plate, and a side wall connecting the top plate and the bottom plate to form a chamber having a tip open to receive the lock arm and the guide rod, and having a locking portion in the chamber to fasten the tip of the lock arm. The rear end of the backpack has a buckle for the chest buckles, characterized in that the strap connection bar is provided. The method of claim 5, The plug member includes a base and a pair of lock arms protruding from the base and elastically coupled to the socket members, and a guide rod protruding from the base in the middle of each lock arm. Formed, The socket member includes a top plate and a bottom plate, and a side wall connecting the top plate and the bottom plate to form a chamber having a tip open to receive the lock arm and the guide rod, and having a locking portion in the chamber to fasten the tip of the lock arm. The rear chest strap buckle for the backpack, characterized in that the strap connection bar and the magnet housing is formed. The method of claim 5, The plug member includes a base and a pair of lock arms projecting from the base and elastically coupled to the socket member, a guide rod protruding from the base in the middle of each lock arm, and a strap connecting bar formed at the rear of the base. The magnet housing is formed in the rear of the strap connecting bar, the magnet is accommodated, The socket member includes a top plate and a bottom plate, and a side wall connecting the top plate and the bottom plate to form a chamber having a tip open to receive the lock arm and the guide rod, and having a locking portion in the chamber to fasten the tip of the lock arm. , Buckle for the chest buckles of the backpack, characterized in that the lifting buckle having a rail groove at the rear end is formed integrally. The method of claim 5, The plug member includes a base and a pair of lock arms protruding from the base and elastically coupled to the socket members, and a guide rod protruding from the base in the middle of each lock arm. Lifting buckle having is formed integrally, The socket member includes a top plate and a bottom plate, and a side wall connecting the top plate and the bottom plate to form a chamber having a tip open to receive the lock arm and the guide rod, and having a locking portion in the chamber to fasten the tip of the lock arm. The rear chest strap buckle for the backpack, characterized in that the strap connection bar and the magnet housing is formed. The method of claim 5, The magnet accommodated in the magnet housing is buckle for the chest of the backpack, characterized in that the insert is installed by insert injection. The method of claim 5, The magnet housing portion is formed with an inlet opening to the outside, the inlet of the chest buckles buckle, characterized in that the locking jaw is formed to prevent the separation of the magnet to be stored. The method of claim 5, The magnet housing part is formed in a circular space to accommodate a disc-shaped magnet, and an opening is formed outside the magnet housing part, and the width of the inlet is slightly smaller than the diameter of the magnet so that the magnet The buckle for the chest buckles of the backpack, characterized in that after being pushed in and retracted, it is not easily separated to the outside. The method of claim 5, The magnet housing is formed with an inlet opening to the outside, the stopper is fitted to prevent the separation of the magnet to be accommodated, the inlet and the contact surface of the stopper end of the stopper so that the locking state of the plug is fixed so that the locking groove and the engaging projection facing The chest buckles buckle of the backpack characterized in that formed correspondingly. The method of claim 5, The outer surface of the magnet housing portion is buckle for chest buckles, characterized in that the seating groove is formed so that the magnets accommodated in the magnet receiving portion and the outer magnet is seated. The method of claim 14, The buckle for chest buckles of the backpack, characterized in that the magnet housing portion and the seating groove is connected by a hole. A support piece having a rail section having a circular cross section is installed in each of the shoulder buckles on each side, and a lifting buckle having a rail groove coupled to the rail unit is connected to each support piece, and a fastening buckle composed of a plug member and a socket member is formed in the middle. In the chest buckles buckle of the backpack is provided to be connected to each lifting buckle, Either of the plug member or the socket member of the fastening buckle has a magnet housing portion at an end opposite to the coupling direction of the fastening buckle, and the magnet is stored in the magnet housing portion, and the food and beverage hose is drawn out from the bucket to be stored and carried in the backpack. The buckle for the chest buckles of the backpack, characterized in that the magnet for the hose to be attached to each other corresponding to the magnet at the end of the. A support piece having a rail section having a circular cross section is installed in each of the shoulder buckles on each side, and a lifting buckle having a rail groove coupled to the rail unit is connected to each support piece, and a fastening buckle composed of a plug member and a socket member is formed in the middle. In the chest buckles buckle of the backpack is provided to be connected to each lifting buckle, The plug member includes a base and a pair of lock arms projecting from the base and elastically coupled to the socket member, a guide rod protruding from the base in the middle of each lock arm, and a strap connecting bar formed at the rear of the base. A magnet accommodating part is formed at the rear of the strap connection bar, and an inlet is formed on the outside of the magnet accommodating part and is closed by a stopper. Is formed and maintained in a coupled state, The socket member includes a top plate and a bottom plate, and a side wall connecting the top plate and the bottom plate to form a chamber having a tip open to receive the lock arm and the guide rod, and having a locking portion in the chamber to fasten the tip of the lock arm. , Buckle for the chest buckles of the backpack, characterized in that the lifting buckle having a rail groove at the rear end is formed integrally.

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