JPH0535720U - Liquid discharge container - Google Patents

Abstract

(57) [Abstract] [Purpose] The upper part is attached to the mouth of the container, the cylinder is hung down into the container, the operating member is erected upward from the cylinder, and the upper part is inserted into the operating member. In a liquid discharge container that is inserted to provide a poppet in the cylinder, further pushes down the operating member, and the upper part of which is screwed into the upper part of the cylinder, it is easy to form the suction valve formed by the lower end of the poppet and the cylinder bottom, and Prevents liquid leakage when the body falls. [Structure] A lower part of the poppet is used as a cylindrical part, and an engaging protrusion 37 for defining the upper limit of the poppet is projected from the cylindrical part, and an upper end part of the poppet is used as a taper-shaped large outer diameter part 38 having a small upper diameter. The outer surface of the part was water-tightly pressed against a small inner diameter part 29 provided in the upper part of the stem below the discharge valve 28 provided in the upper end part of the stem.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a liquid discharge container which can be used as a spray container, a foam spray container, or a liquid spray container for spraying liquid as it is by changing only the pressing head.

[0002]

[Prior Art]

 As the liquid discharge container, a container body that erects the mouth and neck portion, and an upper end portion that is screwed into the mouth and neck portion of the container body is hung down inside the container body, and is hung down from the lower surface of the suction valve seat attached to the inner lower end. A cylinder with a suction pipe installed vertically to the bottom of the inside of the container by fitting the upper end into the fitting cylinder provided, and a stem having a discharge valve on the upper inner surface from a cylindrical piston fitted into the cylinder Standing up, to the upper outer surface of the stem, an operating member having a connecting cylinder that hangs down from a pressing head with nozzle and has a male screw on the lower outer surface, and to the inner and outer surfaces of a fixed cylinder that stands up from the upper end of the cylinder, An inner / outer cylinder hanging from both the inner and outer peripheral edges of the top wall is non-rotatably fitted, and a female screw cylinder in which the male screw is screwed onto a female screw provided on the inner surface of the inner cylinder, the suction valve seat and the valve seat. The suction valve is formed with the lower end surface that is placed on the It consists of a piston and a poppet, the upper part of which is inserted into and out of the stem, and a coil spring which is fitted into the lower part of the cylinder and biases the actuating member upward through the cylindrical piston. The member is made of synthetic resin, and a plurality of engaging ridges are vertically provided on the inner peripheral surface of the cylinder lower part to support the lower end surface of the coil spring by the upper end surfaces of these engaging ridges and the lower outer surface of the poppet. There is known a container in which a plurality of engaging protrusions having a diameter larger than the inner diameter of the coil spring are projected, and the engaging protrusions are inserted between the lower portions of the engaging protrusions.

[0003]

[Problems to be solved by the device]

 In the above conventional liquid discharge container, each member except the spring is molded with synthetic resin material, and the male screw of the operating member is screwed into the female screw cylinder to prevent the bulkiness of the package during transportation, and the operating member is lowered. The rod-shaped member, which is held in the cylinder and inserted into the stem to improve the compression ratio in the cylinder, is used as a poppet to form the suction valve with the lower end surface of the poppet and the suction valve seat provided in the lower portion of the cylinder. As a means to control the upper limit of the stroke, there are drawbacks such as an error in the size of the engaging protrusion protruding from the outer surface of the lower portion of the poppet, which hinders the suction valve function, and when the container is inverted, the valve opens and leaks. there were.

According to the present invention, by making the lower portion of the poppet into a tubular shape with an opening at the lower end surface, an error in the size of the engaging protrusion due to a sink during molding of the poppet is eliminated, and the poppet is held in a state in which the operating member is held in a lowered state. The upper end is designed to seal the inner surface of the upper part of the stem, and at least two seals, that is, the seal portion and the suction valve, prevent liquid leakage when the container falls.

[0005]

[Means for Solving the Problems]

 A container body 1 in which a mouth / neck portion 2 is erected, an upper end portion of which is screwed onto the mouth / neck portion of the container body so as to be vertically installed in the container body, and a fitting which is vertically provided from a lower surface of a suction valve seat 9 attached to an inner lower end. A cylinder 3 in which an upper end portion is fitted to a coupling tube 10 and a suction pipe 11 is hung down to a bottom portion in a container body, and a cylindrical piston 21 fitted into the cylinder 3 and a discharge valve 28 on an upper inner surface of the stem 3. 22 is erected, and the operating member 20 in which a connecting cylinder 25 having a male screw on the lower outer surface is fitted to the upper outer surface of the stem and hung from a push-down head 24 with a nozzle 23, and from the upper end of the cylinder 3 The inner and outer cylinders hanging from both the inner and outer peripheral edges of the top wall are non-rotatably fitted to the inner and outer surfaces of the standing fixed cylinder 8, and the male screw is screwed to the female screw 31 provided on the inner surface of the inner cylinder. The internal thread cylinder 30, the suction valve seat 9 and the lower end surface mounted on the valve seat form a suction valve. A poppet 35 having an upper part inserted into and retractable from the cylindrical piston 21 and the stem 22, and a coil spring fitted into the lower part of the cylinder to urge the operating member 20 upward through the cylindrical piston 21. 40, each member other than the spring is made of synthetic resin, and a plurality of engaging protrusions 14 are vertically provided on the inner peripheral surface of the lower portion of the cylinder. While supporting the end faces, a plurality of engaging protrusions 37 having a tip circle diameter larger than the inner diameter of the coil spring are projected from the lower outer surface of the poppet, and these engaging protrusions are arranged between the lower portions of the engaging protrusions 14. In the liquid discharge container inserted into the liquid discharge container, the lower portion of the poppet 35 is formed into a cylindrical portion 36 having an opening on the lower end surface, and the upper end portion of the poppet is formed into a taper-shaped large outer diameter portion 38 to discharge the outer periphery of the lower end of the large outer diameter portion. Water is supplied to the small inner diameter part 29 provided in the upper part of the stem below the valve 28. Pressed tightly.

[0006]

[Action]

 The lower end face opening cylindrical portion 36 formed by the lower portion of the poppet 35 has a plurality of engaging protrusions 37 protruding from the outer surface of the lower portion of the poppet, which may cause a dimensional error due to a sink when integrally molding the poppet with a synthetic resin material. In addition, the outer circumference of the large outer diameter portion 38 at the upper end of the poppet 35 is water-tightly pressed against the small inner diameter portion 29 provided at the upper portion of the stem, thereby forming the lower end surface of the poppet and the suction valve seat of the cylinder together with the small inner diameter portion 29. Make sure the suction valve is closed.

[0007]

【Example】

 Reference numeral 1 denotes a container body that stands up the mouth / neck portion 2, and has a screw portion on the outer surface of the mouth / neck portion.

Reference numeral 3 denotes a cylinder in which an outward flange 4 attached to the outer surface of the upper portion is placed on the top surface of the container body via a packing 5 and hung vertically into the container body 1. The outer flange 4 is sandwiched between the inward flange 7 attached to the upper end of the mounting cylinder and the upper end of the mouth and neck by screwing the outer flange onto the outer surface of the mouth and neck. It may be integrally molded. From the upper end of the cylinder, a fixed cylinder 8 having an engaging projection on the outer surface of the upper part is erected. At the inner lower end of the cylinder, there is attached a suction valve seat 9 whose upper surface is a taper surface having a small diameter at the center and a large diameter at the outer peripheral upper part, and a fitting cylinder 10 is hung from the valve seat to fit the same. A suction pipe 11 is hung vertically from the cylinder to the bottom of the container. A plurality of shallow grooves 12 are radially formed in the taper surface of the upper surface of the suction valve seat 9 to increase the pressure in the lower part of the cylinder by tightening the operating member, and the high pressure liquid passes through the shallow grooves to the lower side of the suction valve hole 13. It is provided to run down to. Further, a plurality of engaging projections 14 are vertically provided on the cylinder inner wall surface portion on the outer peripheral upper portion of the suction valve seat 9.

The lower part of the operating member 20 is inserted into the cylinder. This member erects a stem 22 from a cylindrical piston 21 fitted into the cylinder, and fits an external male screw connecting cylinder 25 hanging from a pushing head 24 with a nozzle 23 to the upper outer surface of the stem. However, the cylindrical piston 21 and the stem 22 may be integrally formed, or separate members may be fitted as illustrated. Engaging ridges 26, 26 are vertically provided around the inner surface of the cylindrical piston. A discharge valve 28 having a ball valve 27 as a valve body is provided on the inner surface of the upper portion of the stem 22. A small inner diameter portion 29 is formed in the upper portion of the stem below the valve.

Reference numeral 30 denotes a female screw cylinder for holding the actuating member 20 in the depressed position, and the inner and outer cylinders hanging from both the inner and outer peripheral edges of the top wall are non-rotatably fitted to the inner and outer surfaces of the fixed cylinder 8 described above. The internal thread 31 is provided on the inner surface of the inner cylinder.

Reference numeral 35 denotes a rod-shaped poppet, the lower end surface of which is mounted on the suction valve seat 9 and the upper portion of which is inserted into the stem 22. The lower part of the poppet is not formed as a tubular portion 36 having an opening at the lower end surface, and a plurality of engaging projections 37 are projected from the outer surface of the tubular portion to vertically move the engaging projections between the lower portions of the engaging ridges 14 described above. It is movably inserted. The tip circles of these engaging protrusions 37 are made larger in diameter than the lower inner diameter of the coil spring, which will be described later. The upper half of the poppet has a small outer diameter with respect to the lower part of the poppet, and the upper end of the upper half is a taper-shaped large outer diameter part 38 having a small upper diameter. The outer periphery of the lower end of the large outer diameter portion is provided so as to be watertightly pressed to the lower end of the small inner diameter portion 29 or its inner surface in a state where a male screw is screwed into the female screw 31 as shown in the figure.

Reference numeral 40 denotes a coil spring for urging the actuating member 20 upward. The lower end surface is placed on the upper end surface of the engaging protrusion 14, and the upper end surface of the spring is the lower surface of the cylindrical piston 21. Is pressed against.

Each member except the coil spring 40 and the ball valve 27 is formed of a synthetic resin material.

[0014]

[Effect of the device]

 This proposal has the already described structure.If the entire poppet is made of synthetic resin and has a plurality of engaging protrusions protruding from the lower outer surface of the poppet, the engaging protrusions will have a predetermined size due to sink marks during molding. It may be shorter than that of the valve.Therefore, when the poppet flows up into the cylinder, the tip of its engaging protrusion engages with the inner surface of the lower end of the coil spring. However, in the present invention, the lower portion of the poppet having the engaging protrusion 37 is formed into the tubular portion 36 having the lower end face opening, so that the occurrence of the sink mark can be prevented and the engaging protrusion can be formed in accordance with the dimension. Since the upper end of the poppet is the taper-shaped large outer diameter portion 38, the outer periphery of the lower end of the large outer diameter portion is watertightly pressed against the small inner diameter portion 29 provided in the upper portion of the stem below the discharge valve 28. , It will be sealed at two places, that part and the suction valve, Therefore, it is possible to reliably prevent water leakage when the container falls.

[Brief description of drawings]

FIG. 1 is a half cross-sectional view of a container of the present invention.

FIG. 2 is an enlarged cross-sectional view of a main part of FIG.

FIG. 3 is an enlarged cross-sectional view of a main member of the container of the present invention.

[Explanation of symbols]

 1 Container 3 Cylinder 20 Actuating Member 30 Female Threaded Cylinder 35 Poppet

Claims (1)

[Scope of utility model registration request] 1. A container body 1 which erects a mouth / neck portion 2, and an upper end portion is screwed onto the mouth / neck portion of the container body so as to be hung vertically inside the container body,
Also, a cylinder 3 in which the upper end is fitted to a fitting cylinder 10 that is hung from the lower surface of the suction valve seat 9 attached to the lower end of the inside, and a suction pipe 11 is hung down to the bottom of the inside of the container, and is fitted into the cylinder. A stem 22 having a discharge valve 28 on the upper inner surface is erected from the cylindrical piston 21 thus set, and a connecting cylinder 25 having a male screw on the lower outer surface is fitted to the outer surface of the upper portion of the stem by hanging from a pressing head 24 with a nozzle 23. Working member 20 and cylinder 3
The inner and outer cylinders hanging from both the inner and outer peripheral edges of the top wall are non-rotatably fitted to the inner and outer surfaces of the fixed cylinder 8 standing upright from the upper end of the upper wall, and the male screw is screwed to the female screw 31 provided on the inner surface of the inner cylinder. The internal thread cylinder 30 thus formed, the suction valve seat 9 and the lower end surface placed on the valve seat form a suction valve, and a cylindrical piston
Poppet with upper part inserted freely into and out of 21 and stem 22
35 and a cylindrical piston fitted into the lower part of the cylinder
A coil spring that biases the actuating member 20 upward via 21
40, each member other than the spring is made of synthetic resin, and a plurality of engaging protrusions 14 are vertically provided on the inner peripheral surface of the lower portion of the cylinder. While supporting the end face, a plurality of engaging protrusions 37 having a tip circle diameter larger than the inner diameter of the coil spring are projected from the outer surface of the lower portion of the poppet, and these engaging protrusions are provided between the lower portions of the engaging protrusions 14. In the inserted liquid discharge container, poppet 35
The lower part is the tubular part 36 with the lower end face opening, and the upper end part of the poppet is the taper-shaped large outer diameter part 38. A liquid discharge container characterized in that it is water-tightly pressed against the portion 29.