JPH0642493Y2 - Horizontal gland for bag - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION << Industrial Application Field >> The present invention relates to a flat foldable school bag and an improvement of a lateral gill core in other bags.

<< Prior Art >> A conventional school bag, for example, as shown in FIG. 7, is formed integrally with or separately from the front c and the rear c with a lid b attached to the upper end thereof. The main body a is formed in a substantially U-shaped vertical section with the bottom gusset e, and the side gussets f, f are on the left and right sides of the main body a, and the side gussets f and f are the above-mentioned front edge c and rear edge d and the bottom edge e. , So that the bag can be flatly folded.

In addition, the bag is not only made of woven fabric, leather, synthetic leather, etc., so that it can withstand long-term use. For the purpose of doing, etc.
In the lower half of f, f, a plate-like bottom gut core (not shown) made of a tough material such as synthetic resin or a rectangular lateral gut core g as shown in FIG. It has been arranged.

In addition, at this time, the bottom gore core is simply laid on the inner surface of the bottom gore e, while the side gore core g prevents the side gore from falling down inward. It is generally sandwiched between f and a lining (not shown).

Therefore, in the above-mentioned bag, when there is a large amount of textbooks and other items to be stored, the state shown by the chain double-dashed line in Fig. 9 (a) and (b) and Fig. 10 and Fig. 11 are shown. However, when the capacity of the stored object becomes small, the front c
And the rear edge d are pressed in the direction of approaching each other,
The lateral gussets f and f are deformed into a concave state inward as shown in FIG. 9 (a) and a convex state outward as shown in FIG. 9 (b), thereby being folded flat. .

<Problems to be solved by the invention> However, the lateral gill core g in the above-mentioned conventional bag is
As shown in the figure, because it is formed in a vertically long rectangular shape,
When the front edge c and the rear edge d are pressed inward so that the bag is flatly folded, the lateral gusset f and the upper part of the lateral gusset core g are shown in FIGS. 12 and 13. Although it is deformed (concave state) as illustrated, at the lower end, the lower end g'of the lateral gut core g
When the bottom gusset e collides with the bottom gusset e, the bottom gusset e and the lower part of the side gusset f and the side gill core g themselves are less likely to be deformed, and as shown in FIG. Will be rare.

That is, the lateral gill core g acts as a resisting force against the folding force of the bag, and the force acts on the bottom gland e and the side gland f as shown by arrows w and w ′ in FIGS. 12 and 13. At the sewn portion h, since it works in opposite directions, the thread is pulled and thread breakage occurs,
There is a problem that the part is easily damaged.

The present invention has been made in view of such a defect of the above-described conventional bag, and normally, the bag is held in a desired shape,
Not only does it effectively improve durability, but it also allows flat folding of the bag when the capacity of the stored item is small, so it is easy to deform the bottom or side gullet in a concave or convex state. The purpose of the present invention is to provide a lateral gill core for a bag that does not cause breakage from the sewn portion for a long period of time by preventing excessive force from acting on the sewn portion. is there.

<< Means for Solving the Problems >> The horizontal gill core for a bag according to the present invention has a front body having a lid at the upper end and a rear body paired with the front body in order to achieve an intended purpose. Migoro is continuous with each other through bottom gulls that extend over these bottoms, and at each end of each of the front goggle, rear goggle, and bottom ginkgo, each end of each of the two lateral gulls, each The lower end is applied and the overlapping parts of these front, rear, bottom gussets, and both side gussets are sewn together, and the planar side gusset core is at least the height of both side gussets. In the bag which is applied to and retained at each of the positions below the intermediate portion in the direction, the both lateral gusset cores are made of an elastic material, and the lower end portions of these lateral gusset cores gradually extend from both sides of the respective lower end portions toward the center. It is characterized in that recessed notches are formed respectively.

<Operation> When the capacity of the stored object in the bag is large, the lateral gland and the bottom gland are extended in the lateral width direction by the lateral gland core, so that the bag is held in a predetermined shape.

When the capacity of the stored object is small, for example, about half of the maximum storage capacity, the front and rear sashes are pressed inward by tightening the lid, etc., and this pressing force is applied to the left and right side gill cores. On the other hand, it acts so as to be bent and deformed against the resilience, and also acts on both lateral gills and bottom glutes so that they can be folded in two from the fold line at the center thereof.

Here, since the notches are formed in the lower ends of both lateral gill cores, the lower ends of the lateral gill cores and the bottom glands do not interfere with each other. Along with being folded in half from the center, the bottom gland is also folded in two from the center, which makes the bag easy and reasonably flat. The tensile force in the vertical direction, that is, in the opposite direction does not act on the sewn portion between the gusset and the bottom gusset, and thus thread breakage at the sewn portion is prevented.

In the folded state, when a large amount of an object to be stored is stored in the bag, a pushing force by the object to be stored and
By the force of the two lateral gusset cores elastically returning to the flat plate shape, the two lateral gussets and the bottom gusset are respectively expanded in the width direction, so that the bag is restored to a predetermined shape.

<< Embodiment >> An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 and 3 to 6, the bag shown in the drawing is formed by bending a strip-shaped component material into a generally U-shaped longitudinal section as is known. 1 and the bottom gusset 2 and the rear sash 3 are integrally formed. At the upper end of the front sewage 1, the one end of the lid 4 is provided with two belts 6 and 6 via a plate-shaped pressing member 5 which is horizontally long. It is sewn with.

Further, the lengths of the two belts 6 and 6 can be adjusted through metal fittings (not shown), and the lower ends of the two belts 6 and 6 are secured to the rear surface of the bottom gusset 2 by means of screws or the like through mounting metal fittings (not shown). Is stuck to.

At the left and right side edges of the front and rear both margins 1 and 3 and the bottom gore 2, vertically long rectangular lateral gooses 7, 7 are sewn to the left and right edges and the lower edge by a strong thread 8. However, here, the front and rear Meguro 1,3, the bottom gusset 2, the belts 6,6, and the side gussets 7,7 are
It is made of a strong material such as woven cloth, leather, synthetic leather, etc., and the bottom gusset 2 has a central portion that can be folded inward from the central portion as shown in FIGS. 5 and 6. Is provided with a fold line 2a.

On the other hand, both lateral gussets 7, 7 are also provided with a fold line 7a in the central part so that they can be folded in half from the central part to the vicinity of the lower end, and at the lower end,
From the lower end of the crease line 7a, the two margins 1 and 3 and the bottom gusset 2
To be able to fold along the line connecting the bending parts 9 and
Fold lines 7b, 7b are provided in a substantially V-shape on the side surface as shown in FIGS.

Inside the bottom gusset 2 and inside the both side gussets 7,7, a plate-like bottom gusset core 10 is provided to maintain the shape of the bag and to improve durability, and also a plate-like shape. Each of the horizontal gill cores 11 is provided.

The bottom gob core 10 and the lateral goblin core 11 are made of a material that can be returned to its original shape by being tough and elastically deformed by, for example, a synthetic resin, and the bottom gob core 10 corresponds to the bottom gore 2. It is formed into a shape and a size to be formed, and is simply laid without being fixed to the inner surface of the bottom gusset 2.
Reference numeral 11 denotes a vertically long rectangular shape having a width substantially the same as that of the lateral gusset 7 and having a length that is approximately 1/2 of the length of the lateral gusset 7. B) As clearly shown in (b), the notch 11b cut out so as to rise linearly or in a curved shape from the left and right lower ends 11a, 11a in the width direction to the upper side in the center in the width direction, It is recessed in a substantially inverted V-shape on the front side as shown in (a) of the figure or in a substantially hemispherical shape as shown in (b) of the figure.

The lateral gusset core 11 is sandwiched between the inner surface of the lower half of the lateral gusset 7 and the lining 12 so as to prevent the undesired movement thereof. In the figure, 12 is bottom gusset 2 and side gusset 7
The sewn part is shown.

《Effect of the device》 The baggage core according to the present invention not only reinforces and retains the bag equipped with it, but also the bag with a small storage capacity is folded into the bag and both side bags into the bag. When bending, avoid applying unreasonable force to both ends of the bottom and both sides.

That is, when the bottom gland and both lateral glands are deformed during such folding, these lateral gland cores that elastically deform together with both lateral gland, the deformation of the bottom gland by the recessed notch at the lower end of each lateral gland. Since the (mountain shape) is accepted, both end portions of the bottom gullet and both end portions of both lateral gullets do not collide with each other and interfere with each other.

Therefore, when the bag is folded, not only the bottom gland, both side gills, both side gill cores are easily deformed, but also the pulling force that is unreasonable for the sewing thread sewing both side ends of the bottom gland and both gulls. Does not work,
Breakage of the bag due to this type of thread breakage is less likely to occur.

In particular, the notch of each lateral gill core bends inwardly from these widthwise intermediate portions depending on the shape of the recess, and since the deformation of the bottom gill is also made into a mountain shape due to the recessed shape, The bottom gusset, both side gussets, and both side gussets do not bend in the wrong direction.

In addition, each lateral gut core that bends and deforms as described above,
As the amount of bending into the bag increases, the apex of each notch is advanced along the length of the bottom gland (in the bag) while narrowing the width of these.

Therefore, both ends of the bottom gland are not separated from the respective notches during the above-mentioned bending deformation, and both ends of the bottom gland are sandwiched by the notches of the lateral gluteal cores whose widths gradually become narrower due to the above-mentioned bending deformation. However, the mountain-shaped deformation of the bottom gusset can be assisted.

[Brief description of drawings]

FIG. 1 is a perspective view of the bag for showing an embodiment of a horizontal bag core according to the present invention, and FIGS. 2 (a) and 2 (b) are front views showing different embodiments of the lateral bag core, and FIG. The figure is a side view of the main part of the bag,
FIG. 4 is a vertical sectional side view taken along the line IV-IV in FIG.
The figure is a side view showing the main part of the bag in a flatly folded state, FIG. 6 is a vertical side view taken along the line VI-VI in FIG. 5, and FIG. Fig. 8 is a perspective view of a bag that uses a bag, Fig. 8 is a front view showing a conventional side gusset, and Fig. 9 (a).
(B) is a schematic plan view of different states showing an example of bending of a side fold, FIG. 10 is a side view of a main part of a conventional bag, and FIG. 11 is a cross section taken along line XI-XI in FIG. Fig. 12 is a side view showing the main part of a conventional bag in a flatly folded state, and Fig. 13 is a side view.
FIG. 13 is a sectional view taken along the line XIII-XIII in FIG. 1 …… front sill 2 …… bottom sill 3 …… rear sill 4 …… lid 7,7 …… side gusset 11 …… side wick core 11b …… notch

Claims (1)

[Scope of utility model registration request] 1. A front mango having a lid at its upper end, and a back mango which forms a pair with the front mango are continuous with each other via a bottom gusset extending over these bottoms, and a front mango, The rear edge, the bottom edge of each side of the bottom gusset, and the end portions of each side of the two side gussets, the bottom edge of the two gussets are applied. Are sewn to each other, and the flat lateral gut cores are applied to and held at at least the middle portions in the height direction of the lateral guts, respectively, and the lateral gut cores are A lateral bag core for a bag, which is made of an elastic material, and is formed with a cutout portion which is gradually recessed from both sides of the respective lower end portions toward the center at the lower end portions of the lateral bobbin cores.