Hosokawa Yoko Co., Ltd.

Kabushikikaisha Shofu

Shirouma Saiensu Kabushiki Kaisha

Hiroaki Takashima

Kazuhiro Umenaka

Susumu Niwa

Yuichiro Moriyama

Raizo Kuge

Naoya Kitada

Kouichi Inoue

Hiroyuki Kobayashi

Rei Nishimura

Toshikazu Kenmotsu

Hideki Tanaka

Takahiro Saito

A hinge cap formed by an injection-molding comprises an inner lid capable of being attached to a container body, a hinge, and an outer lid that is connected to the inner lid by the hinge to open and close the cap. The inner lid includes a claw portion. The outer lid includes a tubular outer wall portion and a plurality of convex portions as undercut portions and a plurality of concave portions. One convex portion and a concave portion adjacent to the one convex portion form an engaging portion capable of being engaged with the claw portion. An adjacent convex portion adjacent to the engaging portion and a concave portion adjacent to the adjacent convex portion form a mold pressing portion.

Hinge cap and hinge cap set

A structure of a mouth plug portion includes a nozzle and a cap, the nozzle includes a first outer protrusion and a second outer protrusion, the first outer protrusion includes a locking surface that locks the cap and a first guide surface spirally extending, the cap includes a cap body and a tamper band provided with a weak portion that can be broken by an external force received from the second outer protrusion during rotation of the cap body, the cap body includes a first inner protrusion and a second inner protrusion, an outer peripheral surface of the nozzle is provided with a second guide surface along which the first inner protrusion and the second inner protrusion can move in an axial direction.

Structure of mouth plug portion, and package

A sealing mechanism for a container opening having a cylindrical opening disposed on a container body and a cap for sealing the cylindrical opening. The cap includes a screw-on cap body and an upper lid for sealing the cylindrical opening. The cap body and the upper lid are independent of each other so that the cap body can be rotated without rotating the upper lid and are engaged by a concave/convex portion. When the cap body is moved away from the container, the cap body slidably abuts on the upper lid, and pushes up the upper lid to open the cylindrical opening, and when the cap body moves toward the container, the cap abuts on the upper lid and pulls down the upper lid to re-seal the cylindrical opening.

Sealing mechanism for a cylindrical container opening using a cap having a cap body and an upper lid

A spout assembly for a packaging bag for improving the prevention of oxidation to an inner content and discharging such content at a desired amount. The spout assembly mounted to the bag body includes a spool to move along the axial direction of the spout assembly and an urging member having an outer peripheral surface fixed to the inner peripheral surface of the spout assembly and adapted to urge the spool toward the bag body side. A check valve allows the inner content to flow only from the bag body side toward the mouth portion side. The urging member has a seat surface for the spool and the urging member presses the spool against the seat surface to shut off the flow of the inner content, and when an inner pressure of the bag body or a suction force of the mouth reaches a predetermined value, the spool separates from the seat surface.

Spout assembly and method of manufacturing packaging bag provided with spout assembly

A coupling piece coupling a cap body and a band is prevented from being cut off to tampering and the cutting-off thereof due to deformation of the band. An open/close cap a cap body to be screwed to an outer peripheral surface of a mouth portion of a pouring spout and a band extending in the circumferential direction of the cap body and engaged with the pouring spout, the band being formed with at least one portion at which the bandcircumferentially separated, the end of the band being connected by a connection piece at that portion at which the band is cut off. The band is disposed below the lower surface of the cap body and coupling pieces are attached to the lower portion of the cap body. A band shape maintaining member is disposed to the lower end of the cap body.

Open/close cap and manufacturing method thereof

Growing community of inventors

Toyama, Japan

Hiroaki Takashima