Daicel Corporation

Tomohide Fujiwara

Toshiyuki Sakai

Ryohei Yamada

Yuzo Yamamoto

Takao Kuroda

Akihiro Wakatsuki

An electric circuit breaker device includes an igniter, a rod-like projectile, and a conductor portion for forming a part of an electric circuit, and an insulating closed space. The conductor portion includes a first and second connection portions and a cut portion at an intermediate portion, and is disposed with a surface of the cut portion. The rod-like projectile has an end portion facing the cut portion. The insulating closed space has an opening portion facing the conductor portion, a closed end surface opposite to the opening portion in the housing axial direction, and four side surfaces between the opening portion and the closed end surface. A width (W1) of the opening portion of the insulating closed space and a width (L1) of the end portion of the rod-like projectile have a relationship of W1>L1 and W1−L1≥0.25 mm.

Electric circuit breaker device that extinguishes an arc generated when conductor portion is cut

An electric circuit breaker device includes: an igniter provided to a housing; a projectile disposed in an accommodating space formed in the housing, the projectile being to be projected along the accommodating space by energy received from the igniter; a conductor piece that is provided to the housing, forms a portion of an electric circuit, and includes in a portion thereof a cutoff portion disposed crossing the accommodating space and to be cut off by the projectile; and an arc-extinguishing region that is provided in the accommodating space and in which a coolant material is disposed, the arc-extinguishing region being configured to receive the cutoff portion after being cut off. The projectile includes a first projectile configured to cut off the cutoff portion from the conductor piece by being projected by the energy received from the igniter, and a second projectile configured to press, into the arc-extinguishing region, the cutoff portion cut off by the first projectile.

Electric circuit breaker device

An electric circuit breaker device includes an igniter, a rod-like projectile, and a conductor portion for forming a part of an electric circuit, and an insulating closed space. The conductor portion includes a first and second connection portions and a cut portion at an intermediate portion, and is disposed with a surface of the cut portion. The rod-like projectile has an end portion facing the cut portion. The insulating closed space has an opening portion facing the conductor portion, a closed end surface opposite to the opening portion in the housing axial direction, and four side surfaces between the opening portion and the closed end surface. A width (W) of the opening portion of the insulating closed space and a width (L) of the end portion of the rod-like projectile have a relationship of W&#x3e;Land W&#x2212;L&#x2265;0.25 mm.

An electric circuit breaker device includes: an igniter; a projectile that is disposed in a movement path, the projectile formed to be movable by actuation of the igniter; and a conductor piece that forms one portion of a predetermined electric circuit, the conductor piece having both end portions connected to respective other portions of the predetermined electric circuit, the conductor piece having a first portion between both the end portions arranged to traverse the movement path. A sensor is connected to a first part positioned between both the end portions and to a second part that is between both the end portions and is different from the first part, the sensor configured to detect current flowing through the conductor piece between both the end portions, the sensor disposed to be integrated with the conductor piece. The actuation of the igniter is controlled, based on the current detected by the sensor.

An electric circuit breaker device includes an igniter provided to a housing, a projectile disposed in a cylindrical space formed in the housing, the projectile being movably formed in the cylindrical space by energy received from the igniter, a conductor piece that is provided to the housing, forms a portion of an electric circuit, includes a cutoff portion to be cut off by the projectile in a portion thereof, and is disposed with the cutoff portion crossing the cylindrical space, an arc-extinguishing region positioned within the cylindrical space, on a side opposite to the projectile prior to actuation of the igniter with the cutoff portion interposed between the arc-extinguishing region and the projectile, and configured to receive the cutoff portion cut off by the projectile, and a coolant material having a fibrous form and disposed in the arc-extinguishing region.

The present application relates to an electric circuit breaker device and has an object to reduce in size while maintaining a required strength. The electric circuit breaker device includes, in a resin housing (), an igniter (), a rod-like projectile (), a conductor portion (), which are disposed in this order from a first end portion () of the housing toward a second end portion () opposite the first end portion in an axial direction, and an insulating closed space () between the second end portion of the housing and the conductor portion, wherein the conductor portion is a plate portion including connection portions () on both end sides; and a cut portion () at an intermediate portion, the conductor portion extending in a width direction orthogonal to a housing axial direction, the rod-like projectile is disposed to face the cut portion in the axial direction, and the cut portion includes fragile portions () formed at two locations on the second end portion side of the conductor portion, each of the fragile portions being a notch portion.

To provide an electric circuit breaker device that can be downsized while maintaining strength. An igniter, a bar-shaped projectile, a conductor piece, and an insulating spaceare provided inside a resin housing. A cylinderis disposed between the bar-shaped projectileand an inner wall surface of the housing, and a reinforcing frameis disposed in the housingon the outer side.

A needleless syringe comprises a main syringe body which is a main body thereof and which has, in the main body, a sliding movement passage connected to an opening provided on a front end surface of the main body; a holding unit which has an accommodating unit for accommodating an injection objective substance so that the injection objective substance is releasable; and a driver that is configured to apply energy to the holding unit in order to allow the holding unit to slide toward the opening. When the energy is applied by the driver to the holding unit disposed at the initial position, the holding unit slides in the sliding movement passage to abut against the opening at the abutment position, and thus the injection objective substance accommodated in the accommodating unit is discharged via the opening. Accordingly, the high injection performance of the needleless syringe is appropriately exhibited.

Needleless syringe

To provide an electric circuit breaker device that can be downsized while maintaining strength. An igniter, a bar-shaped projectile, a conductor piece, and an insulating spaceare provided inside a resin housing. A cylinderis disposed between the bar-shaped projectileand an inner wall surface of the housing, and further, a reinforcing frameis disposed in the housingon the outer side. A discharge path for combustion products generated by actuation of the igniteris provided between the insulating spaceand a second endof the housing.

The present invention relates to a perforator for breaking a closing member at a gas outlet of a gas bottle to allow a gas to flow out. The perforator includes a cylindrical housing having three openings, namely, a first opening at a first end portion, a second opening at a second end portion which is opposite to the first end portion, and a third opening formed in a circumferential wall portion, an ignition device being fixed at the first opening, the second opening to be connected to the gas bottle and the third opening serving as a gas discharge portion, and when a pressure created by actuation of the ignition device is received, the first piston moving in an axial direction, and the second piston moving towards the second opening by receiving the movement of the first piston.

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Tatsuno, Japan

Tomohide Fujiwara