JPH0438727Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to an improvement of the lower fastener for fixing the shoulder belt of a school bag.

[Conventional technology]

Conventionally, as shown in FIG. 4, in the shoulder belt of a school bag, the upper end of the shoulder belt 24 was fixed to the upper part of the rear surface part 2, and the lower end was connected to the lower strap belt 25. The lower strap belt 25 was fixed to a lower belt fastener 27 protruding from the bottom part 26.

The length of the shoulder belt 24 is adjusted by appropriately fastening the buckle 28 of the lower strap belt 25 to one of the plurality of fastening holes 15 of the shoulder belt 24.

[Problems to be solved by the invention] The shoulder belt 24 of the conventional school bag has the following disadvantages.

(1) The belts consist of a shoulder belt 24 and a lower strap belt 25, and the belt length can be adjusted using the buckle 2.
8, the structure was complicated and bulky.

(2) Adjusting the belt length using the buckle 28 was time-consuming and difficult for children to adjust.

(3) Since the shoulder strap 24 and the lower strap belt 25 are fixed to the bag body and cannot be removed, the belts cannot be replaced if they are damaged.

(4) Since the lower fastener 27 protrudes from the bottom part 26 of the bag body, it gets in the way and the bottom part 26
could not be placed on a desk, etc.

This invention focuses on the fact that conventional school bags have a complicated structure and poor functionality as described above, and aims to eliminate these drawbacks by improving the lower fastener.

[Means for solving problems]

This invention has a left and right pair fixed to the lower part of the rear surface 2 of the bag body 3, a recess 8 formed inside, a lid 9 for opening and closing the recess 8, and recesses 8 at the upper and lower ends 7a and 7b.
Belt insertion port 10 and belt extraction port 11 communicating with
are formed respectively, and the fastening holes 15 of the shoulder belt 5 are formed.
a belt fastening protrusion 12 for fastening the belt fastening protrusion 12; and a protrusion 14 that fits into a hole 13 drilled in the end surface of the belt fastening protrusion 12.
One is provided on the bottom surface of the recess 8 and the other is provided on the inner surface of the lid body 9.

[Effect]

This invention has the following effects.

(1) The lower fastener has belt fastening protrusions 12 and protrusions 13
are provided in either the recess 8 or the lid 9, and the shoulder belt 5 is opened or closed by opening or closing the lid 9.
is assumed to be fixed.

Therefore, the lower fastener has the function of fixing the shoulder belt 5 to the bag body 3 and the function of adjusting the belt length of the shoulder belt 5.

the result, The conventional lower strap belt becomes unnecessary.

Since the shoulder belt 5 can be taken out and removed by opening and closing the lid 9, the belt length can be easily adjusted, and the shoulder belt 5 can also be attached to and removed from the lower fastener.

(2) Since the lower fastener 7 is fixed to the rear part 2,
The bottom part can be stably placed on a desk or the like.

〔Example〕

An embodiment of this invention will be described based on the drawings.

In FIG. 1, the school bag consists of a bag body 3 consisting of a front part (not shown), a gusset part 1, a rear part 2 and a bottom part (not shown), and a lid 4 sewn to the rear part 2. It's configured.

The upper ends of a pair of shoulder belts 5 are attached to an upper fastener 6 at the upper part of the rear surface part 2, and the lower ends of the shoulder belts 5 are attached to a lower fastener 7 at the lower part.

The lower fastener 7 has a pair of left and right rivets fixed to the lower part of the rear surface 2, and has a recess 8 formed therein and a lid 9 for opening and closing the recess 8.

One side of the lid 9 is connected to the lower end 7b of the lower fastener 7, and can be opened and closed by elastic deformation.

A belt insertion opening 10 and a belt extraction opening 11 are formed at the upper and lower ends 7a and 7b of the lower fastener 7, respectively, and communicate with the recess 8 internally.

A belt fastening protrusion 12 is provided protruding from the bottom surface of the recess 8, and a hole 13 is bored in the end surface of the belt fastening protrusion 12. Correspondingly, a protrusion 14 is provided on the inner surface of the lid 9 to fit into the hole 13 of the belt fastening protrusion 12.

The shoulder belt 5 fixed to such a lower fastener 7 has a plurality of fastening holes 15 formed at appropriate intervals.

To attach the shoulder belt 5 to the lower fastener 7, insert the lower end of the shoulder belt 5 into the recess 8 through the belt insertion port 10, insert the fastening hole 15 corresponding to the appropriate belt length into the belt fastening protrusion 12, The belt 5 on the distal end side of the fastening hole 15 is pulled out from the belt extraction port 11. Next, when the lid body 9 is closed, the protrusion 14 fits into the hole 13 of the belt fastening projection 12, and the shoulder belt 5 is fixed.

To remove the shoulder belt 5 from the lower fastener 7, the reverse operation may be performed.

The upper fastener 6 has the same structure as the lower fastener 7 except that it does not have a belt extraction port.

That is, the upper fastener 6 includes a pair of left and right base portions 20 and a hanging portion 21 protruding from the center.

The base 20 is formed from a recess and a lid 22 that opens and closes the recess, and the recess is internally communicated with the belt insertion opening 10 formed at the upper end 20a of the base.

A belt fastening protrusion with a hole is provided on the bottom of the recess, and a protrusion that fits into the hole of the belt fastening protrusion is provided on the inner surface of the lid 22.

In addition, there are multiple fastening holes 15 at the upper end of the shoulder belt.
is formed.

To secure the shoulder belt 5 to the upper fastener 6,
The upper end thereof is inserted into the recess through the belt insertion port 10, the fastening hole 15 at the tip is inserted into the belt fastening protrusion, and the lid body 22 is closed. As a result, the protrusion of the lid body 22 fits into the hole of the belt fastening protrusion, and the upper end of the shoulder belt 5 is fixed.

Since the shoulder belt 5 can be attached to and removed from both the upper fastener 6 and the lower fastener 7, the belt can be easily replaced with a new one when the belt becomes worn out.

In addition, the belt fastening protrusion 12 and the protrusion 13 are in the recess 8,
Of course, it may be provided on any part of the lid body 9.

[Effect of idea]

In this invention, the shoulder belt 5 is passed through the lower clasp 7, and the clasp holes 15 at appropriate locations of the shoulder belt 5 are removed by opening and closing the lid 9. belt 5
It has the function of fixing to the bag body 3 and the function of adjusting the belt length of the shoulder belt 5.

As a result, the conventional lower strap belt can be omitted, and the structure is simpler and easier to operate than the conventional belt length adjustment using a buckle. Furthermore, in conventional buckles, the fastening rod that fits into the fastening hole is exposed, but the bottom fastener of the present invention does not have such a thing, and is safe and has an excellent appearance.

Since the shoulder belt 5 can be attached to and removed from the lower fastener 7, the belt can be replaced by removing the shoulder belt 5 from the upper fastener 6 as well.

Further, since the lower fastener is provided on the rear surface portion 2, the bottom surface portion can be placed on a desk or the like.

[Brief explanation of the drawing]

1 to 3 show an embodiment of this invention. FIG. 1 is a perspective view of a school bag. FIG. 2 is a perspective view showing the state before the shoulder belt is inserted into the lower fastener. FIG. 3 is a cross-sectional view of the lower fastener showing the state in which the shoulder belt is fixed. FIG. 4 is a perspective view of a school bag showing a conventional example. 2... Rear part, 3... Bag body, 5... Shoulder belt, 7... Lower clasp, 8... Recess, 9... Lid body, 10... Belt insertion port, 11... Belt extraction port , 12... Belt fastening protrusion, 13... Hole, 14
...button, 15...fastening hole.

Claims (1)

[Scope of utility model registration request] A pair of left and right lids 9 are attached to the lower part of the rear surface 2 of the bag body 3, have a recess 8 inside, and open and close the recess 8.
, a belt insertion opening 10 and a belt extraction opening 11 communicating with the recess 8 are formed at the upper and lower ends 7a and 7b, respectively, and a belt fastening protrusion 12 for fastening the plurality of fastening holes 15 of the shoulder belt 5, and the belt fastening protrusion. 12
A protrusion 14 that fits into a hole 13 drilled in the end face,
A lower fastener for a shoulder belt for a school bag, characterized in that one is provided on the bottom surface of a recess 8 and the other is provided on the inner surface of a lid body 9.