JPS6313847U - - Google Patents

Description

[Brief explanation of drawings]

Fig. 1 is a sectional view showing an embodiment of the present invention, Fig. 2 is a sectional view showing another embodiment of the invention, Fig. 3 is a sectional view showing a conventional example, and Fig. 4 is a blind lid of a conventional example. FIG. 3 is a cross-sectional view showing the state during opening work. 1 is the body of the tube, 1a is the inner layer, 1b is the outer layer, 2 is the head, 2a is the outer layer body, 2b is the inner layer body, 2
a ₁ is the receiving seat surface, 2a ₂ is the mating recess, 2b ₁ is the upper end surface of the inner layer body, 2b ₂ is the flange portion, 2b ₃ is the fitting convex portion, 3 is the shoulder portion, 4 is the mouth portion, 5 is the blind lid , 5a is the aluminum sheet of the blind lid, 5b is the upper surface coating of the blind lid, and 5c is the lower surface coating of the blind lid.

Claims (1)

[Claims for Utility Model Registration] A cylindrical body made of synthetic resin having at least two or more layers including a synthetic resin layer with moisture-proof properties and a synthetic resin layer with gas barrier properties, and the upper end of this body An extruded tube comprising a synthetic resin head integrally molded with a mouth part and a shoulder part, the head being formed by a combination of two members, an outer layer body and an inner layer body, The outer layer body is formed from a synthetic resin material having moisture-proof properties, the inner layer body is formed from a synthetic resin material having gas barrier properties, and the inner layer of the body is formed from a synthetic resin material of the same quality as the outer layer body. The inner surface of the body is adjacent to the shoulder of the outer layer body and the contact surface thereof is fused, and the upper end of the mouth of the head has a blind lid for closing the mouth. The blind cover is a thin composite material made of a thin aluminum sheet as a base material, with a synthetic resin coating on the upper surface of the aluminum sheet that can be fused to the outer layer of the head, and an adhesive resin or paint coating on the lower surface. The blind lid is formed of a laminated sheet, and further, the peripheral edge portion of the blind lid is sandwiched between the receiving surface of the outer layer body and the upper end surface of the inner layer body, and the upper surface coating of the blind lid is fused to the outer layer body. An extruded tube with a blind lid. In the tube described in the above item, the synthetic resin material having moisture-proofing properties is selected from polyethylene or polypropylene, and the synthetic resin material having gas-barrier properties is a thermoplastic synthetic resin material such as polyethylene terephthalate, polybutylene terephthalate, etc. Extruded tube with blind lid selected from thermosetting synthetic resin materials such as melamine, urea, and phenolic. In the tube described in the above items, the upper surface coating of the blind lid is made of low-density polyethylene or polypropylene, and the lower surface coating is made of a urethane-based synthetic resin or an epoxy-containing synthetic resin or a paint. Tube. In the tube according to the above item, the aluminum sheet of the blind lid has a thickness of 20 to 10
0μ, the thickness of the top coating is 10 to 50μ, and the thickness of the bottom coating is 3 to 15μ. In the tube according to the above items, the head has a flange portion at the lower end of the inner layer body, a ring-shaped fitting convex portion or a recess portion is provided on the upper surface of the flange portion, and a lower end surface of the outer layer body. A cap of a tube with a blind lid, which has a fitting concave portion or a convex portion that tightly fits into the fitting convex portion or concave portion, and these concave and convex portions are tightly fitted.