Abstract: [Object] To provide a trigger sprayer excellent in ejection responsiveness and ejection stability. [Solution] The present invention is directed to a trigger sprayer 100 having a base body 10 having a main cylinder portion 2 and a sub-cylinder portion 3 which can store liquid, a piston portion 20 slidable along an inner wall of the main cylinder portion 2, a trigger 30 for sliding the piston portion 20, a first valve V1 which opens and closes in accordance with pressure inside the main cylinder portion 2, and a second valve V2 which opens and closes in accordance with pressure of the liquid, the second valve V2 having a second valve piston portion 11a slidable along an inner wall 3a of the sub-cylinder portion 3 and an inverted-dome-shaped dome spring portion 11b for pressing the second valve piston portion 11a, and the dome spring portion 11b being elastically deformable.

Abstract: [Summary] [Object] To provide an S valve structure to be incorporated in an accumulator spray with a reduced pulling force of a trigger portion E. [Solution] The present invention is directed to an S valve structure A in an accumulator spray to be attached to a container to suction liquid in the container from an introduction tube H via an F valve into a main cylinder portion, apply pressure to the liquid in the main cylinder and, when the pressure exceeds a certain pressure, eject the liquid via an S valve structure A from a nozzle portion F wherein the S valve structure A is formed of a spring portion 1 and a valve piston portion 2 drooping from the spring portion 1, and the valve piston portion 2 includes a core rod portion 21, an outer skirt portion 22 extending downward from an outer circumference of the core rod portion 21 and an inner skirt portion 23 longer than the outer skirt portion 22.

Abstract: [Object] To provide a trigger-type pump dispenser that makes it possible to prevent an out-of-nozzle squirting phenomenon that occurs at a final stage of sucking up of liquid out of a vessel into a cylinder. [Solution] A trigger-type pump dispenser A includes a handle structure 1, a nozzle base structure 2 attached to the handle structure 1, a trigger 3, a cylinder structure 4, a cap 5 by which the cylinder structure 4 is held down and attached to the mouth of a vessel, a piston structure 6 that slides inside the cylinder structure 4, an inverted-mortar-shaped lip 61 formed in the piston structure 6, a spring 7 that springs the piston structure 6, a valve case 8 attached to the nozzle base structure 2, a mortar-shaped valve seat 81 formed in the valve case 8, a leak valve 9, attached to a bottom part of the cylinder structure 4, that has a bulging portion 91 at a tip thereof, a first valve FV, and a second valve SV.

Abstract: [Object] To provide a pump dispenser that makes it possible to prevent air from entering a conduit even in a case where there is little liquid left in a vessel and prevent back-flow drippage of the liquid from the conduit even in a case where the pump dispenser has been removed from the vessel. [Solution] An adaptor A that is attached to a pump dispenser B configured to suck up liquid out of a vessel via a conduit 3 and eject the liquid from a nozzle includes a tubular portion 1 that is attachable to the conduit 3 and that has an opening in an upper part thereof and a bottom wall portion 11 forming the bottom of the tubular portion 1. The bottom wall portion 11 includes an outlet hole 2, and the diameter ER of the outlet hole is smaller than the inner diameter TR of the conduit.

Abstract: [Object] To provide a trigger-type pump dispenser that makes it possible to prevent an out-of-nozzle squirting phenomenon that occurs at a final stage of sucking up of liquid out of a vessel into a cylinder. [Solution] A trigger-type pump dispenser A includes a handle structure 1, a nozzle base structure 2 attached to the handle structure 1, a trigger 3, a cylinder structure 4, a cap 5 by which the cylinder structure 4 is held down and attached to the mouth of a vessel, a piston structure 6 that slides inside the cylinder structure 4, an inverted-mortar-shaped lip 61 formed in the piston structure 6, a spring 7 that springs the piston structure 6, a valve case 8 attached to the nozzle base structure 2, a mortar-shaped valve seat 81 formed in the valve case 8, a leak valve 9, attached to a bottom part of the cylinder structure 4, that has a bulging portion 91 at a tip thereof, a first valve FV, and a second valve SV.

Abstract: A pressurized spray A is provided with a cap part 1, a body part 3 capable of being attached to the cap part, a base body 2 that is attached to the body part 3, an introduction pipe 4 for introducing a liquid in a container attached to the base body 2, a nozzle part 5 attached to the body part 3, a cylinder part 6 attached to the body part 3, an F valve 7 attached to the bottom of the cylinder part 6, a piston part 8 that is allowed to slide inside the cylinder part 6, a pivotal trigger 9 that moves the piston part 8 in forward and backward directions, a restoring spring part 13 for restoring the trigger 9, a pressurized valve (S valve 10) attached to a passage of the body part 3, and a pressing spring part 11 for pressing the pressurized valve in a valve closing direction, and by pivotally moving the trigger 9, the pressurized spray A jets out the liquid, and a liquid passage 12 that communicates with the inside of the cylinder part 6 is formed between the base body 2 and the body part 3 so that the liquid l

Abstract: To provide a base body of pressurized spray that makes it possible to stabilize a pressing spring and also to reduce the number of assembling processes. The base body 2, which is assembled into a pressurized spray A that is attached to a container so as to suck a liquid inside the container into a cylinder part 6 through an F valve 7 from an introduction pipe 4, and by applying a pressure to the liquid inside the cylinder, the liquid is jetted out through an S valve 10 from a nozzle, is provided with: an attaching part for use in attaching the introduction pipe 4 on a lower side, which is attached between a cap and a container mouth part, and a pressing spring part 11 that is attached onto an upper side and presses the S valve 10 in a valve closing direction.

Abstract: To provide a base body of pressurized spray that makes it possible to stabilize a pressing spring and also to reduce the number of assembling processes. The base body 2, which is assembled into a pressurized spray A that is attached to a container so as to suck a liquid inside the container into a cylinder part 6 through an F valve 7 from an introduction pipe 4, and by applying a pressure to the liquid inside the cylinder, the liquid is jetted out through an S valve 10 from a nozzle, is provided with: an attaching part for use in attaching the introduction pipe 4 on a lower side, which is attached between a cap and a container mouth part, and a pressing spring part 11 that is attached onto an upper side and presses the S valve 10 in a valve closing direction.

Abstract: Problem to be Solved To provide a pressurized spray makes it possible to prevent liquid from leaking to the outside and subsequently to prevent peripheral contamination and wasteful use of the liquid.