JPH0137446Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to a backpack bag, and particularly to a backpack bag that can be carried on both shoulders, such as a backpack bag or a backpack bag.

(Prior Art) This type of backpack has heretofore been typically made of lightweight and highly flexible sheet material. Therefore, when the bag is carried on one's back with contents stored therein, the center of gravity of a lightweight and flexible bag shifts due to the weight of the contents, and for example, the bag tilts backward or slides downward. In such a state, it is extremely difficult to carry the bag on your back, and in order to prevent this as much as possible, it is conceivable to use a so-called string to tighten the opening of the bag. Such conventional techniques are disclosed in, for example, Japanese Utility Model Publication No. 53-111325 and Japanese Utility Model Application Publication No. 49-79504.

(Problem to be solved by the invention) In all of these conventional techniques, a part of the string that tightens the opening is passed through the netsuke for attaching the shoulder strap to the bag. If it is possible, the netsuke will be raised upwards, and to some extent the bag will be prevented from tilting or falling down. However, the opening of the bag remains away from the back, so
The adjustment of the center of gravity of the bag has not been done enough, and the problem that it is still difficult to carry on the back remains.

Therefore, the main purpose of this invention is to provide a backpack bag that is easy to carry.

(Means for Solving the Problem) This invention is a backpack bag in which a part of the strap for tightening the upper opening of the bag is passed through the shoulder strap.

(Function) When the bag is carried on the back using the shoulder strap, the shoulder strap comes into close contact with the back, and on the other hand, the bag is brought closer to the shoulder strap by the strap, and as a result, the bag comes into close contact with the back.

(Effects of the invention) According to this invention, the bag is placed in close contact with the back and the center of gravity of the bag is raised along the back, so the bag does not tilt backward or slide down.
A backpack bag that is extremely easy to carry is obtained.

The above objects, other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.

(Embodiment) FIG. 1 is a perspective view showing an embodiment of this invention. Knapsack 10 includes a bag 12 having an opening 14 at its upper end. The bag 12, along with a lid, a shoulder belt, etc., which will be described later, is made of a lightweight and highly flexible sheet material such as a synthetic resin cloth such as nylon or leather (including synthetic leather).
The bag 12 is mainly formed by a bottom part (not shown), a back part 12a, a front part 12b, and left and right side views 12c and 12d. This lid 16 is used to cover the upper end opening 14 of the bag 12. As can be clearly seen from FIGS. 2 and 3, near the bottom of the lid 16 attached to the back surface 12a, the upper ends of a pair of shoulder straps 18 and 20 are spaced at a constant interval in the width direction of the bag. can be installed.

A tightening string 22 is passed around the upper end opening 14 of the bag 12 so as to substantially surround the opening 14 in a drawstring style. Specifically, the tightening string 22 is attached to the back surface 12a and the front surface 1 of the bag 12.
A plurality of (eight holes in this example) holes 24a, 24b, 24c and 24d and 26a, 26b, 26c and 26d are formed at regular intervals in 2b.
passed through.

Both ends 22a of this strap 22 are passed through holes 24b and 24c from the center of the front part 12b from the inside of the bag 12 to the outside, so that both ends 22a are pulled out to the outside of the front part 12b. . Then, the remaining part of the tightening cord 22 is inserted into the remaining hole 2.
4a and 24d and 26a to 26d alternately. Note that the holes 24a to 26d
are each processed into eyelets.

In this embodiment, holes 28 and 30 are further formed near the upper ends of the pair of shoulder straps 18 and 20, as shown in FIG. 2, through which the above-mentioned strap 22 is passed. The positions where the holes 28 and 30 are formed are selected to approximately correspond to the positions of the holes 26c and 26b, respectively, and are determined depending on the size of the bag and the rate at which the bag expands when the contents are put therein. ,
It may be provided somewhat above or below. The strap 22 coming out of the bag 10 from the hole 26c is passed through the hole 28 of the shoulder strap 18, then continuously through the hole 30 of the shoulder strap 20, and then enters the inner surface of the bag 10 through the hole 26b.

Note that the holes 26b and 26c are located on the back surface 12a.
It is also formed in the portion of the lid 16 that overlaps with the lid 16. Therefore, even if the strap 22 is passed through the shoulder straps 18 and 20, the strap 22 will not interfere with opening and closing the lid 16, as shown in FIGS. 1 and 2. .

Next, referring to FIG. 3, the state in which the backpack bag 10 is actually carried on the back will be described. The shoulder bag 10 is carried on the back with the arms passed through shoulder straps 18 and 20, respectively. In this case, shoulder straps 18 and 2
0 has its length etc. adjusted appropriately so that it can fit closely against the back. On the other hand, shoulder belt 1
By the tightening cord 22 passed through 8 and 20,
The opening 14 is tightly tightened. The opening 14 is then pulled to the shoulder straps 18 and 20 by the strap 22. Therefore, the bag 12 is carried closely on the back.

In addition, the two-dot chain line in FIG. 3 shows the state of the bag 12 that has been raised further due to the above-mentioned tightening string 22 being tightened more strongly.

In the embodiment described above, shoulder straps 18 and 20 include:
One hole was formed in each. However, the shoulder straps 18 and 20 are designed so that the center of gravity of the bag 12 can be changed to adjust the comfort of carrying the bag 12 as needed.
A plurality of holes may be formed at regular intervals in the direction in which the 0 extends.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of this invention. FIG. 2 is a plan view of the embodiment shown in FIG. 1 with the lid closed. 3 is a partially cutaway perspective view showing an example of use of the embodiment of FIG. 1. FIG. In the figure, 10 is a backpack, 12 is a bag, and 14
16 is a lid, 18 and 20 are shoulder straps, 22 is a strap, 24a to 24d, 26a to 26
d, 28, and 30 indicate holes.

Claims (1)

[Claims for Utility Model Registration] 1. A bag having an opening at the upper end, a shoulder belt attached to the bag, and a strap that is passed around the opening of the bag to tighten the opening. A backpack bag, characterized in that a part of the strap is passed through the shoulder strap. 2. Two of the shoulder straps are attached at regular intervals in the width direction of the bag, and include holes formed in each of them, and the strap extends from one hole of the shoulder strap to the other hole of the shoulder strap. A backpack bag according to claim 1 of the utility model registration claim, which is passed through.