JP3042282U - Grape materials in synthetic resin bags - Google Patents

Abstract

(57) [Problem] To efficiently produce a bag made of a soft synthetic resin. SOLUTION: The gore material 1 has a connecting piece 12 projecting obliquely inward at both longitudinal edges of a band 11, and a rounded bead portion at an obtuse angle side formed by the band and the connecting piece. 13 are provided.
The gore material 1 is covered along the inner surface of the support frame 5 which is a welding jig, and the connecting pieces 12 on both side edges of the gore material 1 surround the side edges of the support frame 5 and face outward. Next, the front material 2 and the backing material 3 are stretched on both opening surfaces of the support frame 5 with their back surfaces facing outward, respectively, and the peripheral edges thereof are integrally welded to the joining pieces 12 of the gore material 1 by the welder 6.

Description

[Detailed description of the invention]

[0001]

[Field to which the invention belongs]

 The present invention relates to a goosewood in a flexible synthetic resin bag formed by welding a front material and a backing material to the goosewood.

[0002]

[Prior art]

 The inventor of the present application has proposed a reinforcing and decorative band material to be interposed between the surface material and the goosewood and between the backing material and the goosewood in such a bag as shown in FIG. 6 (Actual Publication 54-95). No. 27), and a method for producing a bag using the reinforcing and decorative strip material (4) was clarified (Japanese Patent Publication No. 54-702).

In the reinforcing / decorating strip (4), a short supporting wall (42) is projectingly provided on a bead portion (41) having a circular cross section, and a tip of the supporting wall (42) is folded back into a fin shape to hold a locking piece. Forming (43). When manufacturing the bag, as shown in FIG. 5, the band-shaped gusset material (10) is arranged along the inner surface of the welding supporting frame (5), and the both side edges (13) and (13) are respectively supported by the supporting frame (5). Of the reinforcing and decorative band member (4) along the inner edge of the frame (41), and the locking piece (43) on the side edge of the support frame (5). Both sides (14) and (14) of the goosewood (10) are covered and supported by the support frame (5) with the reinforcing and decorative strips (4).

Next, a front material (2) and a backing material (3) are stretched on both opening surfaces of the support frame (5) with their back surfaces facing outward, and their peripheral edges are joined to the band material (4). After that, the welder (6) is pressure-bonded to the support frame (5) from both sides, and the peripheral edges of the goosewood (10), the support wall (42) of the band material (4), and the front and back materials (2) (3). Weld together.

After the welding of the goosewood (10) and the front and backing materials (2) and (3), the supporting frame (5) is removed and the whole is turned upside down. ) The bead of the strip (4) is exposed along the welded portion with (3), and a reinforced and decorated bag can be formed.

[0006]

[Problems to be solved by the device]

 The above bag manufacturing method has improved work efficiency compared to the previous bag manufacturing method of this type, but still the work of folding both side edges of the goosewood (10) to the side edges of the support frame (5), reinforcement Moreover, the work of covering the folded portion with the decorative strip material (4) was troublesome, and further improvement was desired. The present invention clarifies a gusset material that allows a bag to be manufactured more efficiently by integrally forming in advance on both side edges of the gusset material a member that replaces the conventional reinforcing and decorative band material.

[0007]

[Means for solving the problem]

 The gusset material (1) of the present invention projects the connecting pieces (12) (12) obliquely inward from both side edges in the longitudinal direction of the band body (11) so that the band body (11) and the connecting piece (12) are Rounded edges (13) and (13) are provided at the obtuse-angled corners, and the cross-sectional shape orthogonal to the longitudinal direction is uniform.

[0008]

[Action and effect]

 The goosewood (1) is covered along the inner surface of the support frame (5), and the connecting pieces (12) on both side edges of the goosewood (1) surround the side edges of the support frame (5) and face outward.

Next, the front material (2) and the backing material (3) are stretched on both opening surfaces of the support frame (5) with their back surfaces facing outward, and the peripheral edges thereof are connected to each other by the connecting piece (1) of the goosewood (1). 12) After stacking, the welder (6) is crimped to the support frame (5) from both sides, the connecting piece (12) and the outer peripheral edge of the surface material (2), the connecting piece (12) and the backing material (3). ) Is welded together.

After the welding of the goosewood (1) and the front and backing materials (2) and (3), the supporting frame (5) is removed and the whole is turned upside down. ) (3), the bead edge (13) (13) of the goggle (1) is exposed along the welded portion, and a reinforced and decorated bag body can be formed. Attach a handle, a model strap, and other accessories to this to complete the bag.

On both side edges of the goosewood (1), connecting pieces (12) for welding the front material (2) and the backing material (3) are slanted inside so as to cover the side edges of the support frame (5). Since it is integrally molded in the facing direction, both edges are bent and pressed like the conventional goosewood (10), and the effort to cover the support frame (5) here, as well as the reinforcement and decoration band (4 ) Is not required to cover the bent portion of the goosewood (10), and the manufacturing can be performed efficiently.

Moreover, since the outer peripheral edges of the connecting piece (12) and the front material (2) and the outer peripheral edge of the connecting piece (12) and the backing material (3) are simply welded, that is, two layers are welded together. Therefore, as in the conventional case, the folded portion of the side edge of the goosewood (10), the supporting wall (42) of the reinforcing and decorative strip (4) and the welding of the front material (2) or the backing material (3), That is, the welding time can be shortened compared to the welding of three layers, the reliability of the welded portion is improved, and the thickness of the welded portion is reduced, so that the hardening of the resin due to the solidification of the welded portion is suppressed, and the whole It is easy to work when turning over.

[0013]

[Embodiment of the invention]

 FIG. 1 shows an example of a flexible synthetic resin bag formed by welding a front material (2) and a backing material (3) to both side edges of a goosewood (1). The gusset material (1), the surface material (2) and the backing material (3) are made of a soft synthetic resin such as vinyl. The lid material (31) is formed integrally with the backing material (3).

As shown in FIGS. 2 and 3, the goosewood (1) is diagonally inwardly connected to both side edges in the longitudinal direction of the strip (11) having a length and a width corresponding to both side surfaces and a lower surface of the bag. The pieces (12) and (12) are projected, and tube-shaped bead portions (13) and (13) having a circular cross section are provided at the obtuse-angled corners formed by the strip (11) and the connecting piece (12). The gusset material (1) has a uniform cross-sectional shape orthogonal to the longitudinal direction and is formed by extrusion molding of resin.

As shown in FIG. 3, the supporting frame (5), which is a jig for welding the front material (2) and the backing material (3) to the gore material (1), is provided on both side surfaces, the lower surface and the opening of the bag. It is formed in a deformed ring shape that goes around the upper surface, and its width corresponds to the width of the gulls of the bag.

However, as shown in FIG. 4, the goosewood (1) is covered along the inner surface of the support frame (5), and the connecting pieces (12) (12) on both side edges of the goosewood (1) are attached to the support frame. Surround the side edge of (5) and turn it outward.

Next, the front material (2) and the backing material (3) are stretched on both opening surfaces of the support frame (5) with their back surfaces facing outward, and the peripheral edges thereof are connected to the connecting piece (1) of the goosewood (1). After stacking on the support frame (5), the welder (6) is crimped to the support frame (5) from both sides to connect the outer edge of the front material (2) to the connecting piece (12) and the outer edge of the backing material (3). Weld the pieces (12) together.

After welding the goosewood (1) and the front and backing materials (2) and (3), the supporting frame (5) is removed and the whole is turned inside out (since it is an inside out, it was actually turned upside down). By doing so, the bead edges (13) and (13) of the band material (4) are projected, reinforced and reinforced along the welded portions of the goosewood (1) and the front and backing materials (2) and (3). A decorated bag body can be formed. If necessary, attach the model hanging string (7) and accessories such as handles to complete the bag.

On both side edges of the goosewood (1), connecting pieces (12) for welding with the front material (2) and the backing material (3) are slanted so as to cover the side edges of the support frame (5). Since it is integrally molded inward, it is necessary to bend both side edges of the goosewood (10) and press it onto the support frame (5) as in the conventional case, and also to reinforce and decorate the bandage (4). The bag can be efficiently manufactured by omitting the work of covering the bent portion with (10).

Further, since it is only necessary to weld the connecting piece (12) and the outer circumference of the front material (2) and the outer circumference of the connecting piece (12) and the backing material (3), that is, two layers should be welded. Therefore, as in the conventional case, welding of the folded portion of the side edge of the goosewood (10), the supporting wall (42) of the reinforcing and decorative strip material (4) and the front material (2) or the backing material (3), that is, The welding time can be shortened compared to the welding of three layers, the reliability of the welded part is improved, and the thickness of the welded part is reduced, so that the hardening of the resin due to the solidification of the weld is suppressed, and the whole is turned over. Also, it is easy to work.

The present invention is not limited to the configuration of the above embodiment, and various modifications can be made within the scope of the utility model registration request.

[Brief description of the drawings]

FIG. 1 is a perspective view of a bag.

FIG. 2 is a sectional view of a gore material.

FIG. 3 is a perspective view of a gore material, a front material, a backing material, and a support frame.

FIG. 4 is a cross-sectional view showing a state in which a front material and a backing material are welded to a gore material.

FIG. 5 is a sectional view showing a state in which a front material and a backing material are welded to a conventional gore material.

FIG. 6 is a perspective view of a conventional reinforcing and decorative strip.

[Explanation of symbols]

 (1) gore material (11) strip (12) connecting piece (13) bead (2) front material (3) backing material (5) support frame

Claims (1)

[Utility model registration claims] 1. The strip (11) and the connecting piece (12) are made by projecting the connecting pieces (12) (12) obliquely inwardly on both side edges in the longitudinal direction of the band (11).
A goosewood having a uniform cross-sectional shape orthogonal to the longitudinal direction, provided with rounded bead portions (13) and (13) at the obtuse-angled corner formed by and.