JPH0417510Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a stopper for a sealing ribbon used for sealing bottles, barrels, etc.

(Prior Art) Conventionally, a rivet structure commonly used in the field of mechanical structures has been used as a stopper for sealing ribbons. For example, as in the synthetic resin rivet joint described in Japanese Utility Model Publication No. 45-29452, the cylindrical leg of one rivet has a length shorter than the length of the cylindrical part formed at the tip of the leg of the other rivet. A structure in which the protruding portions of the grooves are fitted and the fitting portions are melted and bonded is known.

(Problem to be solved by the invention) However, in the above-mentioned known synthetic resin rivet, the length of the leg is about half the thickness of the objects to be riveted to be joined, so it is difficult to open the rivet hole. Even if one rivet is inserted from one side to the other in a matched state, this will not prevent the objects to be riveted from shifting from each other. That is, the object to be riveted must be fixed by other means with the rivet holes aligned. Furthermore, since the tip of the rivet's leg tube is cut at right angles to the axis, a rivet hole must be drilled in advance in the object to be riveted.

However, as a stopper for the sealing ribbon, since the sealing position cannot be accurately specified and holes cannot be drilled in advance, it is possible to insert the ribbon at any position, and it is also possible to prevent ribbons from shifting from each other during the sealing process. At present, the known synthetic resin rivet joints cannot be used because they are required to be free from cracking and to be sealed easily and quickly.

The present invention provides a sealing ribbon stopper that allows piercing at any position without drilling holes in the ribbon in advance, and also allows ribbons to be easily and quickly sealed without causing any misalignment of the ribbons during the sealing process. The purpose is to provide

(Means for Solving the Problems) The closure of the sealing ribbon of the present invention is a hollow cone-shaped plastic cap 5 having a protruding rib 6 of a size that can be melted by ultrasonic waves on the inner surface.
and a conical head 4 having a needle tip point 7 at the top and having an outer shape that is almost the same as the hollow conical inner shape of the cap 5.
is formed, and an insertion shaft 8 whose shaft portion is slightly higher than the thickness of the stacked ribbons 1 is constructed of a male mold 2 which is erected in the center of the retaining seat 3, and the insertion shaft 8 of the male mold 2 is
is passed through the stacked ribbons 1, the cap 5 is placed on the conical head 4, and the cap 5 and the male die 2 are fused and fixed by ultrasonic waves using the ribs 6 and needle point 7. This is the configuration.

In addition, ribs of a size that can be melted by ultrasonic waves are those when ABS resin is used as the plastic.
The width is in the range of 0.2 to 0.5 mm, and the height is in the range of 0.2 to 2 mm.

(Operation and effect of the invention) In the sealing ribbon stopper configured as described above, the tip of the insertion shaft 8 of the male die 2 has a pointed needle 7 at the top, followed by a conical head. 4, it is possible to easily insert the ribbon at any position without drilling a hole in the ribbon in advance, and the height of the shaft portion of the insertion shaft 8 can be set from the thickness of the stacked ribbons 1. Since the cap 5 is made slightly higher, the ribbons are positioned on the shaft part and do not shift from each other, so there is no need for fixing means to prevent shifting as in the past, and the cap 5 is formed into a conical shape. Since the rib 6 and the needle tip point 7 of the male mold 2 are formed, when the cap 5 is placed on the male mold 2 that has been inserted through the sealing ribbon, the mutual positional relationship is accurate and When a sound wave is applied, the rib 6 and needle point 7 instantly melt and fix them, so the sealing work can be carried out easily and reliably in a short time, making it suitable for large-volume sealing work. .

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view of the closure of the sealing ribbon according to the present invention, Fig. 2 is a bottom view of the cap, Fig. 3 is a partially sectional front view showing the state before fusion, and Fig. 4 is a cross-sectional view of the cap. FIG. 3 is a partially cross-sectional front view showing the state after fusion. 1...Ribbon, 2...Male type, 3...Stop seat, 4
...Conical head, 5... Cap, 6... Rib, 7...
...Needle tip point, 8...Insertion axis.

Claims (1)

[Scope of utility model registration request] The cap 5 is made of plastic and has a hollow conical shape, and has ribs 6 of a size that can be melted by ultrasonic waves protruding from the inner surface, and a needle tip point 7 at the top, and the inner shape of the cap 5 is hollow conical. It consists of a male mold 2 in which an insertion shaft 8 is formed with a conical head 4 having almost the same external shape as in the above, and the shaft portion is slightly higher than the thickness of the stacked ribbons 1, and is erected in the center of the retaining seat 3. With the insertion shaft 8 of the male die 2 passing through the stacked ribbons 1, the cap 5 is placed over the conical head 4, and the cap 5 and the male die are inserted using ultrasonic waves using the ribs 6 and needle point 7. A sealing ribbon fastener characterized by being fused and fixed to a mold 2.