Yoshino Kogyosho Co., Ltd.

Haruo Tsuchida

Shigeo Iizuka

Tadao Saito

Hiroshi Mizushima

Hiroyuki Nakamura

Takayuki Goto

Takamitsu Nozawa

Takao Kishi

Yoshiyuki Kakuta

Katsuhito Kuwahara

Takaharu Tasaki

Kazuaki Nose

Syuzo Endo

Tatsuhara Ida

Masaru Shimizu

A trigger type fluid dispenser () according to the invention includes a body () having a discharge flow path () and a cylinder () disposed in parallel with the discharge flow path (), and a piston () in the cylinder () is caused to slide by a trigger (). The trigger () is configured so that a hook portion () thereof is held to be swingable by the body (), a turned-down portion () of an extension portion, which is an elastic portion () integrally extending from a swinging portion () of the hook portion (), is held with respect to the body (), and a tip end () of the extension portion is positioned to be capable of coming into contact with the hook portion (). The body () is configured so that a cover (a) is installed to form an internal space (R) between the cover () and the discharge flow path (), and a core element () is inserted in the discharge flow path () and the internal space (R). The core element () is integrally provided with a tongue-shaped element (), serving as a discharge valve, near a discharge port () of the discharge flow path (), and also integrally provided with a tongue-shaped element (), serving as a suction valve, in the internal space (R).

Trigger type fluid dispenser

A pump for discharging bubbles is provided on a neck portion of a container body. The pump for discharging bubbles comprises a cylinder for liquid in which a first piston slides, a cylinder for air in which a second piston slides, a pump head on which a nozzle is provided and which is connected to the first piston and the second piston so as to drive the both pistons, a vapor-liquid mixing chamber in which liquid delivered from the cylinder for liquid and air delivered from the cylinder for air are joined and a bubbling member provided between the nozzle and the vapor-liquid mixing chamber. Liquid within the container body and outside air are pumped up to be joined in the vapor-liquid mixing chamber and the vapor-liquid is bubbled via the bubbling member to be discharged in a foamy state from the nozzle by depressing the pump head.

Container with pump for discharging bubbles

A synthetic resin tube container is formed to have a shortened neck portion and to eliminate an overlapping double wall in a structure for mounting a cap to the neck portion. The tube container comprises a container body and a cover plate. The container body has a trunk portion from which the neck portion is extending upwardly through an inward flanged wall. The upper surface of the neck portion is closed by a top wall with a discharge port. A fitting recessed groove is formed circumferentially on the inward flanged wall. The cover plate is connected via a hinge to an insert cylinder which is fitted into the fitting recessed groove.

Synthetic resin tube container

Trigger type liquid spray container for operation in both upright and inverted positions

A spring member (,) is made of synthetic resin, and comprises a base plate (,) and a pair of spring pieces (,) for returning the plunger (,). Each of said spring pieces (,) comprises a main plate spring (,), a second plate spring (,) and a lower end (,). Said main plate spring (,) is positioned at plunger side, and has a schematically arcuate longitudinal section. Said second plate spring (,) is positioned at nozzle head side, and has a longitudinal section constituting a substantially constant-load plate spring. Said main plate spring (,) and said second plate spring (,) are connected each other at an upper end and a lower end (,) thereof. A locus of elastic deformation of the main plate spring (,) substantially coincides with an arc locus (Y, Z) including a tangent line (X) in an upper surface of the base plate (,).

Trigger-type liquid dispenser

A container with a pump is provided that includes a container body with a neck portion and a pump for discharging bubbles that is provided on the neck portion. The pump includes a cylinder for air and a cylinder for liquid provided in a concentric arrangement. An attaching trunk is provided on the neck portion that holds a flange of the cylinder. A piston head passes through the attaching trunk in a state that allows upward and downward movement. A hollow, cylindrical stem having open ends is received within the cylinder. The upper part of the stem is connected to the piston head and a slidable circular first piston is provided on the lower part of the stem. A second piston is provided on an external surface of the stem and is only capable of slight upward and downward movement. A liquid discharge valve is arranged on the stem and a bubbling member is received between the liquid discharge valve and the nozzle. The pump also includes a vapor-liquid mixing chamber, an air passage and a liquid passage. A coil spring energizes the stem and a locking mechanism prevents movement of the piston head.

Container with pump that mixes liquid and air to discharge bubbles

Container with a pump that mixes liquid and air to discharge bubbles

A dispensing container for cream-like fluids includes a cylindrical body having upper and lower closures. The lower closure is a piston which moves toward the upper closure as the fluid is dispensed from the container. Normally, the container is filled with fluid and then closed with the lower closure. The lower closure or piston is provided with a hole which permits air between the fluid and piston to escape when the lower piston is mounted in the container. The hole is sealed with a disc located at the lower inside portion of the container. The container can advantageously and rapidly reduce the quantity of air remaining in the container thereby reducing deterioration of the fluid due to contact with air.

A Dispensing container for cream-like fluids

A manually operable atomizer of a type adapted to pressurizing the liquid to be atomized by a pumping action of a piston, upon depression of the latter through an atomizing head, the liquid has been sucked up from a container, and atomizing the pressurized liquid from a nozzle. The atomizer has a flange annexed to a cylinder which is adapted to cooperate with the piston in performing the pumping action, a connecting member secured to a neck opening portion of the container and adapted to hold the flange and a holding member opposing to the connecting member and adapted to hold the flange, so that the atomizing mechanism including the piston and the cylinder are stably held on the container. The holding member is so shaped as to surround the connecting member, thereby to prevent any external force from acting on the flange.

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Tokyo, Japan

Haruo Tsuchida