Abstract: To provide a solution applicator with which irritation on an affected part of a patient may be reduced even when a solution is used. According to the present invention, an applicator comprises a solution container which comprises an opening, and a columnar brush member formed by bundling synthetic fibers in a columnar shape. The columnar brush member is disposed at the opening of the solution container, a tip portion of the columnar brush member at an outside of the solution container has a fan shape expanding in a perpendicular lateral direction against a pillar axial lengthwise direction, and a thickness of the fan-shaped tip portion of the columnar brush member decreases in a perpendicular lengthwise direction against the pillar axial lengthwise direction toward the tip portion of the columnar brush member.

Abstract: A paste-type dental material is filled from an opening portion of a cartridge into a cylindrical portion by moving the opening portion of the cylindrical portion of the cartridge along a kneading surface, on which the paste-type dental material is kneaded, with the opening portion being inclined. The piston is placed on the kneading surface with a circular end surface of the piston contacting the kneading surface. The piston is inserted into the cylindrical portion by moving the opening portion of the cylindrical portion of the cartridge closer to the piston located on the kneading surface such that a piston-side tapered surface or the piston-side curved surface of the piston is fitted into the opening portion, and thereafter moving the one of the two ends of the cylindrical portion toward the kneading surface.

Abstract: A cartridge fitting portion of a cylindrical syringe made of a resin includes an end surface opening portion, a continuous opening portion continuous with the end surface opening portion, opened in a radial direction, and extending in an extending direction, and a recess portion configured to communicate with the end surface opening portion, the continuous opening portion, and an internal passage in a cylindrical body. The recess portion includes a flange fitting recess to be fitted with a flange portion of a cartridge, and a cylindrical portion fitting recess that communicates with the flange fitting recess and is fitted with a part of the cylindrical portion. A wall portion surrounding the cylindrical portion fitting recess of the cartridge fitting portion is configured to warp into snap engagement with the part of the cylindrical portion when the part of the cylindrical portion is inserted from the continuous opening portion.

Abstract: A cartridge fitting portion of a cylindrical syringe made of a resin includes an end surface opening portion, a continuous opening portion continuous with the end surface opening portion, opened in a radial direction, and extending in an extending direction, and a recess portion configured to communicate with the end surface opening portion, the continuous opening portion, and an internal passage in a cylindrical body. The recess portion includes a flange fitting recess to be fitted with a flange portion of a cartridge, and a cylindrical portion fitting recess that communicates with the flange fitting recess and is fitted with a part of the cylindrical portion. A wall portion surrounding the cylindrical portion fitting recess of the cartridge fitting portion is configured to warp into snap engagement with the part of the cylindrical portion when the part of the cylindrical portion is inserted from the continuous opening portion.

Abstract: A cartridge in which a pipe can be retained without increasing the number of components or suppressing pushing-out of a content. A length L over which the outer peripheral surface of a pipe and the inner peripheral surface of a through hole contact each other when the pipe is press-fitted into the through hole, an average outside diameter R of the pipe in the range of the length L over which the pipe is press-fitted into the through hole, and an average inside diameter N of the through hole in the range of the length L are determined to meet: L×R×?×(1?N/R)×3.3?W and 0.01<(1?N/R)<0.1, wherein the maximum pushing load of the piston is defined as W and a grasping force to hold the pipe as the pipe is press-fitted into the through hole is defined as 1?N/R.

Abstract: A paste-type dental material is filled from an opening portion of a cartridge into a cylindrical portion by moving the opening portion of the cylindrical portion of the cartridge along a kneading surface, on which the paste-type dental material is kneaded, with the opening portion being inclined. The piston is placed on the kneading surface with a circular end surface of the piston contacting the kneading surface. The piston is inserted into the cylindrical portion by moving the opening portion of the cylindrical portion of the cartridge closer to the piston located on the kneading surface such that a piston-side tapered surface or the piston-side curved surface of the piston is fitted into the opening portion, and thereafter moving the one of the two ends of the cylindrical portion toward the kneading surface.

Abstract: An applicator that is less expensive than those according to the related art and in which a plunger does not easily slip out of a cylindrical syringe. A cylindrical syringe and a plunger are each molded from a resin material. A resistance structure is provided between the inner peripheral surface of the cylindrical syringe and the outer peripheral surface of a pressing portion of the plunger. The resistance structure is configured to act as resistance to movement of the pressing portion when the pressing portion is moved toward a cartridge fitting portion beyond a predetermined position and to movement of the pressing portion when the pressing portion is moved from the side of the cartridge fitting portion toward an end of the cylindrical syringe opposite to the cartridge fitting portion beyond the predetermined position.

Abstract: A viscous material container that makes it unlikely that air remains in a housing when a piston is inserted from an insertion port of the housing. A first section of the housing is formed with two groove portions communicating with a first passage to discharge air in the first passage when a piston is inserted from an insertion port. The two groove portions communicate with the insertion port, and extend along a first imaginary center line.

Abstract: Provided herein is a viscous material container that is not likely to form continuous streaks or asperities on the surface of a viscous material discharged from the viscous material container even if the viscous material is highly viscous. A third section of a housing includes a wall having a wall portion that is positioned radially outwardly of a continuous angular portion with respect to a second imaginary center line, and extends along the continuous angular portion. The wall portion is configured to expand radially outward when a dental viscous material pushed out from a discharge port.

Abstract: Provided is a nozzle mounting structure of a component container by which a nozzle configured to rotate between a first position and a second position may be mounted to a housing without the need for a high processing precision and a high assembly precision. A pair of shaft portions support a body with the nozzle unitarily formed therewith. The nozzle rotates between the first position and the second position. A curved convex surface provided on the body is pressed against a curved concave surface provided on a first bottom wall portion of a housing by a pressing force imparted from a support portion.

Abstract: Provided is a two-component mixing container in which a piston member may be capable of a rotation motion operation and a linear motion operation without the need for a complex guide groove. Two or more spring structure portions are provided at the piston member. The two or more spring structure portions impart a pressing force on an inner wall surface of the third cylindrical portion. Two or more fitting grooves are formed in the third cylindrical portion. In this fitting state, the piston member and a second-component containing member rotate together without contact portions getting out of the fitting grooves. When a force of a predetermined level or higher toward a third bottom wall portion is applied to an operating rod portion with a second-component containing chamber and a mixing chamber being communicable with each other, the contact portions get out of the fitting grooves.

Abstract: Provided is a two-component mixing container in which a communication passage may be formed between a partition wall member and a second-component containing member without the need for a high processing precision and a high assembly precision. A columnar portion provided at the central portion of a second bottom wall portion of a partition wall member and a circular through hole provided in the central portion of a third bottom wall portion of a second-component containing member are fitted. A first communication passage and a second communication passage are communicated with each other, using a fitting surface formed between the columnar portion and the circular through hole.

Abstract: Provided is a two-component mixing container in which a communication passage may be formed between a partition wall member and a second-component containing member without the need for a high processing precision and a high assembly precision. A columnar portion provided at the central portion of a second bottom wall portion of a partition wall member and a circular through hole provided in the central portion of a third bottom wall portion of a second-component containing member are fitted. A first communication passage and a second communication passage are communicated with each other, using a fitting surface formed between the columnar portion and the circular through hole.

Abstract: Provided is a two-component mixing container in which a piston member may be capable of a rotation motion operation and a linear motion operation without the need for a complex guide groove. Two or more spring structure portions are provided at the piston member. The two or more spring structure portions impart a pressing force on an inner wall surface of the third cylindrical portion. Two or more fitting grooves are formed in the third cylindrical portion. In this fitting state, the piston member and a second-component containing member rotate together without contact portions getting out of the fitting grooves. When a force of a predetermined level or higher toward a third bottom wall portion is applied to an operating rod portion with a second-component containing chamber and a mixing chamber being communicable with each other, the contact portions get out of the fitting grooves.

Abstract: A viscous material container that makes it unlikely that air remains in a housing when a piston is inserted from an insertion port of the housing. A first section of the housing is formed with two groove portions communicating with a first passage to discharge air in the first passage when a piston is inserted from an insertion port. The two groove portions communicate with the insertion port, and extend along a first imaginary center line.

Abstract: Provided herein is a viscous material container that is not likely to form continuous streaks or asperities on the surface of a viscous material discharged from the viscous material container even if the viscous material is highly viscous. A third section of a housing includes a wall having a wall portion that is positioned radially outwardly of a continuous angular portion with respect to a second imaginary center line, and extends along the continuous angular portion. The wall portion is configured to expand radially outward when a dental viscous material pushed out from a discharge port.

Abstract: Provided is a nozzle mounting structure of a component container by which a nozzle configured to rotate between a first position and a second position may be mounted to a housing without the need for a high processing precision and a high assembly precision. A pair of shaft portions support a body with the nozzle unitarily formed therewith. The nozzle rotates between the first position and the second position. A curved convex surface provided on the body is pressed against a curved concave surface provided on a first bottom wall portion of a housing by a pressing force imparted from a support portion.

Abstract: To provide a solution applicator with which irritation on an affected part of a patient may be reduced even when a solution is used. According to the present invention, an applicator comprises a solution container which comprises an opening, and a columnar brush member formed by bundling synthetic fibers in a columnar shape. The columnar brush member is disposed at the opening of the solution container, a tip portion of the columnar brush member at an outside of the solution container has a fan shape expanding in a perpendicular lateral direction against a pillar axial lengthwise direction, and a thickness of the fan-shaped tip portion of the columnar brush member decreases in a perpendicular lengthwise direction against the pillar axial lengthwise direction toward the tip portion of the columnar brush member.