JPH0223156Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an improvement of a bag lid fastening device using a band.

[Prior Art] Conventionally, as a band joining device, a joining device is known in which insert molding is performed in a state in which bands to be joined are stacked one on top of the other (for example, in Utility Model Opening in 1983-
Publication No. 45315).

[Problems to be Solved by the Invention] However, the above-mentioned conventional connector has a problem in that the abutting end surfaces of the band are visible through the window, making it unsightly.

The present invention was devised in view of these problems of the conventional technology, and its purpose is to form a molded piece with the end surface of the end of the band buried inside. In addition to making the end face of the band invisible, this technology is utilized in a bag lid fastening device to provide a bag lid fastening device that allows the lid to be fastened easily and quickly, and that is difficult to remove. That is.

[Means for Solving the Problems] Therefore, the present invention is intended to achieve the above object, and the contents thereof will be explained below using embodiments shown in the drawings.

The present invention fixes a fastener 16 having an insertion port 15 to either the main body (for example, the pocket 13 of a bag 12) having an opening 13' or a lid 14 that opens on one side and opens and closes the opening. A pair of bands 17a, 17 are provided on either the bag or the lid.
The lower band 17a has one end portion 5' that fits into the outside of the insertion opening of the fastener, and the other end portion of the lower band 17a has a fitting portion 5' that fits into the outside of the insertion opening of the fastener. A first molded piece 18a is molded with the end surface of the upper band 17b buried inside, and the other end of the upper band 17b has a first molded piece 18a that passes through the insertion opening of the fastener and has the end surface of the other end buried inside. A second molded piece 18b is molded, and the tip of the second molded piece is formed with an inclined surface 18b' having an inclined angle with respect to the insertion direction of the fastener into the insertion port. .

[Function] Therefore, in order to close the lid 14 of the main body 13, first insert the lower band 1 on the outside of the insertion opening 15 of the fastener 16.
Fit the fitting portion 5' of the first molded piece 18a of 7a,
Next, the insertion port 15 of the fastener 16 that comes out from the fitting part 5'
It is only necessary to insert the second molded piece 18b of the upper band 17b into the inside, and at that time, the second molded piece 18b is guided by the inclined surface 18b' of the second molded piece 18b, and the second molded piece 18b is inserted into the insertion opening of the fastener 16. Passed smoothly on 15th.

In this way, by attaching each molded piece of both bands to the clasp, the first molded piece of the lower band can be pulled out from the insertion hole of the clasp by the second molded piece of the upper band, which is attached later. The lid is then fastened closed over the opening 13' of the main body.

In addition, since the end faces of each end of both bands are molded in a state buried inside each molded piece, there is no fraying of the end faces, and moreover, the end faces are not visible from the outside.

[Example] The present invention will be described below based on an example shown in the drawings.

1 indicates a fiber band, and this fiber band 1 is made by weaving or knitting fibers and forming it into a band shape.It is machine-manufactured to a certain length and then cut into short lengths to suit the length of use and used as a band. . Then, a plastic molded piece 3 is molded into the cut end 2 of the fiber strip 1 by burying the end 2 inside (FIG. 1).

On the upper and lower surfaces 3a and 3b of this molded piece 3, a grid-like window portion 4 that is long in the longitudinal direction of the fiber band 1 is formed in the middle of the length.
... are opened substantially parallel to each other, and a part of the surface of the fiber band 1 is exposed through the window portion 4. Further, the end 2 of the molded piece 3 is extended, and a rectangular opening 5 penetrating the upper and lower surfaces 3a and 3b is opened in this extended end.

FIG. 2 shows an exploded perspective view of a mold for molding the molded piece 3, in which 6a and 6b are two-split molds for molding the molded piece 3;
Concave cavities 7a, 7 corresponding to the surfaces of the two halves of the molded piece 3 are formed on each dividing surface 6'.
Engraving b. The surfaces of the cavities 7a and 7b have a plurality of raised portions 8 for forming windows in the molded piece 3.
a, 8b and protrusions 9a, 9b for forming openings are formed by protruding from the bottom surface thereof.

In addition, a shallow and wide insertion groove 10 for inserting a fiber band is carved into the end of one of the molds 6a, with one end opening in the cavity 7a and the other end opening in the outer surface of the mold 6a. A narrow groove-shaped gate 11 through which the molten resin passes is carved in the mold part, with one end opening in the cavity 7a and the other end opening in the outer surface of the mold 6a.

In this way, in order to insert the fiber band 1 into one mold 6a, the depth of the cavity 7a is adjusted to the depth of the other mold 6a.
It is carved deeper by the thickness of the fiber band 1 than the cavity 7b of b, and the upper end of the raised portion 8a is formed lower than the dividing surface 6' of the mold 6a by the thickness of the fiber band 1,
The upper end of the other raised portion 8b is set at a height equal to the dividing surface 6' of the other mold 6b.

Therefore, when the molds 6a, 6b are butted together, the fiber band 1 is held at the center of the height of the cavities 7a, 7b while being sandwiched from above and below by the opposing protrusions 8a, 8b. Moreover, the opposing protrusions 9a, 9
The upper ends of b are set at the same height as the dividing surface 6', and when the two molds 6a and 6b are butted, the protrusions 9a and
9b are in contact with each other.

Next, using the molds 6a and 6b, the fiber strip 1 is
To mold the molded piece 3 in the end 2 of the mold, fit the fiber strip 1 into the insertion groove 10 of one of the molds 6a, and insert the fiber strip 1 into the end 2 of the cavity 6a by about half the length of the cavity 6a. After inserting the molds 6a and 6b sufficiently deep, the cavities 7a and 6b are inserted through the gate 11.
7b is filled with molten resin.

When the mold is clamped, the fiber band 1 is sandwiched from above and below by the opposing protrusions 9a and 9b and is held at the center of the height of the cavities 7a and 7b, so even when molten resin is filled with high pressure, the fibers are The molten raw material appropriately wraps around the fiber band 1 while the band 1 is not shifted to one side of the cavities 7a, 7b and is held at the center of the cavities 7a, 7b. and,
The filled molten resin is cooled and hardened in the mold, and then the mold is opened to integrally mold the molded piece 3 onto the end 2 of the fiber band 1. It is preferable to use a mold of a molding machine (not shown) having a plurality of cavities so that a plurality of molded pieces 3 can be formed by one molding.

In this way, the cut end 2 of the fiber strip 1 is placed inside the molded piece 3.
is buried, so that the binding force between the fiber band 1 and the molded piece 3 is high, and the cut end 2 of the fiber band 1 is not exposed to the outside, which hides fraying etc. that occur when the fiber band 1 is cut. be able to. Incidentally, if a pigment is mixed into the molten resin, the molded piece 3 can be colored in any color that matches the fiber band, and the decorative effect is also high.

Next, a bag lid fastening device using the above-described molding technique will be described with reference to FIG. 4.

In the figure, 12 is a bag made of canvas cloth, and this bag 12 has two pockets 1 on the left and right sides.
3, 13, and an opening 13' of each pocket 13.
A lid 14 that opens on one side is fixed to the holder.

And, there is an outlet 1 on the side of each pocket 13.
Attach the glazing-shaped clasp 16 with the lid 1.
4 has two fixing bands 17a with different widths,
17b are stacked one on top of the other and fixed at one end, and first and second molded pieces 18a and 18b of different shapes are formed at the tips of both bands 17a and 17b, respectively.

The first molded piece 18a has a wide lower band 17
a, is of substantially the same type as the molded piece 3 described above, and has a window 4', and a fitting part 5' that fits into the outside of the insertion opening 15 of the fastener 16 at its tip. will be established. The second molded piece 18b is formed on the narrow upper band 17b, has a window 4'', has a width that passes through the insertion opening 15 of the fastener 16, and is easy to insert into the insertion opening 15. The tip thereof is sharpened to form an inclined surface 18b' having an inclined angle with respect to the direction of insertion into the insertion port 15.

Next, using both molded pieces 18a and 18b, the lid 1 is
4, after closing the lid 14, align the fitting part 5' of the first molded piece 18a with the outside of the insertion opening 15 of the fastener 16 and fitting it from above, and then insert the upper part of the insertion opening 15 into the insertion part. 5' and insert the second molded piece 18b into the protruding insertion opening 15.
When the second molded piece 18b is inserted, its inclined surface 18
Guided by b', the second molded piece 18b passes smoothly into the insertion opening 15 of the fastener 16.

In this way, by attaching the molded pieces 18a, 18b of both bands 17a, 17b to the fasteners, the first molded piece 18a of the lower band 17a becomes the second molded piece of the upper band 17b, which is attached later. 18b
As a result, the fastener 16 cannot be removed from the insertion opening 15, and the lid 14 is fastened to the opening 13' of the pocket 13 in a closed state via both bands 17a and 17b.

On the other hand, when opening the lid 14, both molded pieces 18a,
18b can be removed in the reverse order.

Note that if a locking claw (not shown) is provided protruding inside the insertion port 15, the upper band 17 can be attached to the insertion port 15.
When the molded piece 18b is inserted, this locking pawl fits into the window 4'' of the molded piece 18b, thereby preventing the molded piece 18b from easily coming off.

Further, the window portion 4 formed in the molded piece 3 is formed during molding, and it is sufficient that the raised portions 8a and 8b prevent the fiber band 1 from shifting, and the window portion 4 may be formed not only in a lattice shape but also in a dot shape. , may be large square or circular.

Furthermore, although the lid 14 of the pocket 13 of the bag 12 has been described, the lid of the opening of the bag itself can also be fastened in the same manner.

Further, the inclined surface 18b' of the second molded piece 18b does not need to be sharp as shown in the drawings,
It suffices if it has an inclination angle with respect to the direction of insertion into the insertion port 15.

[Effects of the Invention] As explained above, according to the present invention, it is possible to provide a bag lid fastening device which allows the lid to be fastened easily and quickly, and which is difficult to come off.
Moreover, since the end face of the band is molded with buried inside the molded product, the end face of the band can remain cut, which not only eliminates the need for end treatment, but also prevents the end face from fraying. Since it is not visible from the outside, it has a good appearance.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 is a partial perspective view of a molded piece, Fig. 2 is an exploded perspective view of a mold for molding, and Fig. 3 is a view of the above molds butted together. A sectional view of the state, FIG. 4 is a perspective view of the bag. 12...Bag, 13...Pocket, 13'...
...its opening, 14...lid, 15...socket, 1
6... Fastener, 17a, 17b... Upper and lower bands, 18a, 18b... First and second molded pieces, 5'
...Fitting portion of the first molded piece, 18b'...Slope surface of the second molded piece.

Claims (1)

[Scope of utility model registration request] A fastener having an insertion port is fixed to either the main body having an opening or a lid that opens on one side for opening and closing the opening, and one end of a pair of bands is fixed to the other of the bag or the lid. are stacked one on top of the other and fastened, and the other end of the lower band has a fitting part that fits into the outside of the insertion opening of the fastener, and the end surface of the other end is buried inside. A second molded piece is molded at the other end of the upper band, and the second molded piece passes through the insertion opening of the fastener and the end surface of the other end is buried inside. A device for fastening a bag lid, characterized in that the tip of the second molded piece is formed with an inclined surface having an angle of inclination with respect to the direction of insertion of the fastener into the insertion opening.