JP4746344B2 - School bag back strap mounting device - Google Patents

Description

  The present invention relates to an attachment device for attaching a pair of left and right backpack belts on an upper portion of a backrest portion of a school bag.

Conventionally, an attachment device for attaching a pair of left and right backpacks on the upper part of the back support part of the school bag is fixed to a flat attachment that is fixed to the upper part of the back support part of the school bag body, and a pair of left and right cylinders are fixed. Attach the triangular ring, which is a back strap coupling member, to this cylinder, fold the upper end of the back strap inserted into the triangular ring, and wrap around one side of the triangular ring. It is structured to be joined by sewing.

  By the way, in the conventional attachment device, since the triangular ring is rotatable around the fitting insertion portion to the cylindrical body, the upper end of the shoulder strap can be rotated integrally with the triangular ring. When carrying the school bag body 1 on the back, the back strap 2 is pulled out directly from the triangular ring 3 in the direction of the back, the center of gravity of the school bag body 1 is tilted away from the back, and only the school bag body 1 is felt heavy. In addition, there is a problem that the lower edge of the fixture is pressed against the back, resulting in a painful state.

  Accordingly, an object of the present invention is to attach the backpack to the fixture with the back strap facing upward, and when the main body of the backpack is carried, the backrest is brought into close contact with the back, and the center of gravity of the backpack is placed on the back. It is an object of the present invention to provide a backpack belt attaching device for a school bag that can be prevented from feeling heavy by being close to the bag and that does not cause pain.

  In order to solve the problems as described above, the present invention is provided with a pair of left and right shoulder strap coupling members attached to the upper portion of the backrest portion of the school bag body, and couples the shoulder straps to the coupling members, respectively. In the backpack device for attaching a backpack of the school bag, the backband coupling member is formed on the upper portion of the attachment portion with respect to the fixture so as to be coupled in an extended shape so as to project the connection portion of the backpack belt upward. A pair of upper and lower shoulder strap insertion holes are provided on the back, and the end of the shoulder strap is inserted into the lower insertion hole from the side facing the satchel body and folded back, and then inserted into the upper insertion hole and in the middle of the shoulder strap. A configuration is adopted in which the overlapping portions of the back straps are joined together.

  The connecting portion of the back strap coupling member can be bent so that the surface opposite to the back strap main body is recessed toward the back of the back strap toward the position between the insertion holes of the top and bottom back strap bands.

  Further, the back strap joining member may be formed of a hard synthetic resin, or the overlapping portions of the back strap may be joined by caulking.

  Here, the back strap coupling member uses a hard synthetic resin such as nylon or a metal plate, and the mounting portion and the connection portion are integrally formed, and the left and right back strap binding members are pinned to the lower end of the mounting portion as a fixture. It can be pivoted at a predetermined width so that it can be swung left and right, and is provided with return elasticity in a direction approaching each other by a spring provided between the mounting tool and the mounting tool.

  In addition, the number of rivets that join the overlapping parts of the back straps may be either one or two. In the case of one, sewing may be used on both sides of the caulking position. The caulking is carried out with the seat plate placed between the ridges.

  According to the present invention, the back strap band connecting member is formed on the upper portion of the attachment portion with respect to the fixture, and is formed in an extended shape protruding upward from the connection portion of the back strap, and a pair of upper and lower back straps on the connection portion. After inserting the end of the back strap into the lower insertion hole from the side facing the main body of the satchel and turning it back, insert it into the upper insertion hole and overlap with the middle of the back strap. The back strap that is connected to the connecting portion rises upward, so that the back strap can be attached with the back strap facing upward. The contact part can be brought into close contact with the back, and the center of gravity of the school bag body is brought close to the back so that it does not feel heavy when carried on the back.

  Moreover, when the school bag body is carried on the back, the back pad portion can be brought into close contact with the back, so that the lower edge of the fixture does not partially hit the back, and no pain is felt.

  Furthermore, when the connection part of the back strap coupling member is bent so that the surface opposite to the backpack body is recessed into the backpack body side toward the position between the top and bottom insertion holes, the back strap attached through the top and bottom insertion holes The folded part of the back strap fits into the recessed part of the connecting part, and the folded part of the back strap can be prevented from projecting to the opposite side of the main body of the backpack. There will be no such thing as making you feel uncomfortable.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  As shown in the figure, the backpack attachment device 11 for the school bag includes an attachment 12 that is fixed to the upper portion of the backrest portion 1a of the school bag body 1, a pair of right and left backband attachment members 13 attached to the attachment 12, and A hanging ring 14 is attached to the center upper portion of the fixture 12, and the upper end side of the shoulder strap 2 is coupled to the coupling member 13.

  The mounting tool 12 is formed in a flat horizontally long substantially elliptical shape in which a base member 12a and a cover member 12b are combined and joined by a scissors or the like, and is fixed to the upper part of the backrest portion 1a of the school bag body 1 using scissors, A pair of left and right shoulder strap coupling members 13 are attached to upper positions on both sides so as to protrude upward.

  In FIG. 1 to FIG. 3, the above-described left and right side shoulder strap coupling members 13 of the first embodiment use a hard synthetic resin such as nylon or a metal plate, and have a flat strip-shaped attachment portion 15 that is long in the vertical direction. And a bent portion 15a that bends obliquely upward from the upper end of the mounting portion 15 to the opposite side of the main body 1 and a connecting portion 16 that extends upward from the upper end of the bent portion 15a. The connecting portion 16 has a plate shape that is slightly wider than the backpack 2.

  The left and right shoulder strap coupling members 13 have an attachment portion 15 that fits between the base member 12a and the cover member 12b of the attachment 12 and a lower end of the attachment portion 15 is pivoted to the attachment 12 by a pin 17 so as to have a predetermined width. Can be swung left and right, and a return spring is provided in a direction approaching each other by a leaf spring 18 incorporated in the attachment 12.

  In order to allow the backpack 2 to pass through the connecting portion 16 of the backband coupling member 13, laterally long insertion holes 19 and 20 corresponding to the width of the backpack 2 are provided in parallel at the top and bottom positions. Between the holes 19 and 20, there is a reed 23 for hooking the folded portion of the backpack 2.

  As shown in FIG. 2, the insertion holes 19 and 20 provided in the connection portion 16 of the left and right back strap coupling members 13 are in a state in which the left and right back strap coupling members 13 are in contact with the stopper 24 and are close to each other. It is arranged so that it is slightly inclined downward.

  In order to connect the backpack 2 to the backband coupling member 13, as shown in FIGS. 2 and 3, the backpack main body 1 is inserted into the lower insertion hole 19 with the upper end of the backband 2 facing downward. And then inserted from above the facing side of the connecting portion 16, and then the portion protruding to the opposite side of the school bag body 1 is folded upward and then inserted upward into the upper insertion hole 20 from below. The upper end is pulled out to the facing side, and the upper end is overlapped with the middle of the back strap 2 at a position close to the connecting portion 16, and the overlap portion of the back strap 2 is overlapped with the caulking or sewing thread of the collar 21 as shown in FIG. By connecting the back strap 2 to the back strap band 13, the folded portion 2 a formed into a cylindrical shape of the back strap 2 is wound around the horizontal bar 23.

  In the connection state as described above, the upper end side of the backpack 2 is drawn upward from the connection part 16 and is held so as not to fall on the opposite side of the main body 1 at the upper end part of the connection part 16. As shown in FIG. 5, when the backpack 1 is mounted on the back, the backrest portion 1a can be brought into close contact with the back as shown in FIG. By bringing the center of gravity close to your back, you can avoid feeling heavy when you carry it.

  The folded overlap portion of the back strap 2 is formed by driving the two straps 21 into the two side fistulas provided in the back strap 2 in advance so as to be caulked and thereby connecting the back strap 2 to the back strap connecting member 13. When the caulking is fixed, the seat plate 22 is overlapped between the flanges 21 on both sides to be caulked. In addition, although the overlapping part of the backpack 2 was not shown in the figure, it may be coupled with a sewing thread.

  Next, FIG. 4 shows a second embodiment of the back strap coupling member 13 attached to the fixture 12. The same parts as those in the first embodiment will be described with the same reference numerals.

  The back strap coupling member 13 of the second embodiment uses a hard synthetic resin such as nylon, and has a flat strip-shaped mounting portion 15 that is long in the vertical direction, and is opposite to the school bag body 1 from the upper end of the mounting portion 15. It is formed by integrally forming a bent portion 15a that bends obliquely upward and a connecting portion 16 that extends upward from the upper end of the bent portion 15a. Long horizontal insertion holes 19 and 20 corresponding to the width of 2 are provided in parallel, and between the upper and lower insertion holes 19 and 20 is a horizontal flange 23 for hooking the folded portion of the backpack 2.

  The connecting portion 16 has a "<" shape when viewed from the side so that the surface opposite to the school bag body 1 is recessed into the school bag body 1 side toward the position between the insertion holes 19 and 20 of the upper and lower shoulder straps. It has a structure that is bent.

  In this way, when the connecting portion 16 is bent into a “<” shape when viewed from the side, the folded portion 2a of the back strap 2 attached through the upper and lower insertion holes 19 and 20 as shown in FIG. Can be prevented from protruding into the opposite side of the main body 1 and the folded portion 2a of the backband 2 when the backpack is carried on the back. No longer feels uncomfortable when hitting the back.

  The backpack belt attaching device 11 of the school bag according to the present invention has the above-described configuration, and a pair of upper and lower insertion holes 19 and 20 are provided in the connection portion 16 of the backband belt coupling member 13 so that the upper end of the backband 2 is directed downward. Then, after inserting into the lower insertion hole 19 from the side facing the satchel body 1 and turning it back, inserting it into the upper insertion hole 20 and pulling it out to the side facing the school bag body 1, this end is close to the connection portion 16. At the position, it is overlapped with the middle of the back strap 2 and the overlapped portion of the back strap 2 is joined by caulking or sewing thread of the collar 21, so that the back strap 2 is moved upward to the back strap connecting member 13 of the fixture 12. It can be attached in a facing state, and when the backpack 2 is attached in the upward direction, the back pad 1a can be brought into close contact with the back when the school bag body 1 is carried on the back. Possible so as not to feel heavy when carrying by bringing the center of gravity of the bag body 1 on the back.

  Further, since the back strap coupling member 13 can swing left and right, the back strap 2 can be easily carried on the back and forth according to the physique of the child, and when the backpack body 1 is carried on the back, Since the abutting portion 1a can be brought into close contact with the back, the lower edge of the fixture 12 does not partially hit the back, and a state of feeling pain does not occur.

The perspective view of the school bag using the backpack belt attachment apparatus of the school bag of this invention Partial cutaway front view with enlarged main parts (A) is a partially cutaway enlarged side view of a backband connection state showing a backpack attachment device for a school bag using the backband connection member of the first embodiment, and (b) is a connection of the same backband connection member. Front view showing the part (A) is a partially cutaway enlarged side view of a backpack band connection state showing a backpack belt mounting apparatus for a school bag using the backband band connection member of the second embodiment, and (b) shows the same backband connection member. Perspective view The side view which shows the backpack state of the backpack using the backpack belt attachment apparatus of the backpack of this invention The side view which shows the backpack state of the backpack using the conventional backpack belt attachment apparatus of a backpack

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 School bag body 2 Back strap 11 Back strap attachment device 12 Fixture 13 Back strap coupling member 14 Suspension ring 15 Mounting portion 16 Connection portion 17 Pin 18 Leaf spring 19 Insertion hole 20 Insertion hole 21 鋲 22 Seat plate 23 Reclining 24 Stopper

Claims (4)

  In the backpack mounting apparatus for a backpack, in which a pair of left and right backpack belt coupling members are provided on a fixture fixed to the upper portion of the back cover portion of the school bag body, and the backpack belt is coupled to each of the coupling members, the backpack belt The coupling member is formed on the upper portion of the attachment portion with respect to the fixture, and is formed by extending the connection portion of the backpack band so as to protrude upward, and the connection portion is provided with a pair of upper and lower backpack belt insertion holes. Insert the end of the band into the lower insertion hole from the side facing the main body and turn it back, then insert it into the upper insertion hole and overlap with the middle of the back strap, and join the overlapping part of this back strap A backpack belt attachment device for a school bag, characterized by   The connecting portion of the back strap coupling member is bent so that the surface on the opposite side of the backpack main body is recessed toward the backpack main body toward the position between the insertion holes of the top and bottom back strap bands. The backpack attachment device of the school bag of description.   The backpack belt mounting apparatus for a school bag according to claim 1 or 2, wherein the backband belt coupling member is formed of a hard synthetic resin.   4. The backpack belt mounting apparatus for a school bag according to claim 1, wherein the overlapping portions of the backpack belts are joined by caulking.

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