JP2565402Y2 - Creamy container - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pump-type cream discharge container.

[0002]

2. Description of the Related Art Many pump-type cream-like material discharge containers are conventionally known. In these containers, however, a discharge from a discharge valve to a nozzle tip at the end of a pump operation for discharge is performed. In some cases, the cream-like material that had been extruded into the road was continuously discharged after removing the cream-like material from the nozzle tip. This is thought to be due to the cream in the discharge path being pressurized and expanding to eliminate the pressurized state. However, in order to eliminate such a defect, as shown in FIG. The poppet 21 is used as a suction valve at the bottom of the cylinder 8, and a stem 15 hanging from a head with a nozzle is fitted to the outer surface of the upright bar 25 so as to be able to move up and down. Movable cylindrical piston 20
The piston is vertically movably fitted into the cylinder, and a discharge valve hole 16 is formed in a lower portion of a stem portion where the cylindrical piston moves up and down, and a discharge valve is formed by the discharge valve hole and the cylindrical piston. When the nozzle-equipped head 11 rises by biasing by the end of the pump operation in this way, the stem 15 hanging down from the head rises with respect to the upright rod 25 of the poppet to make the inside of the stem negative pressure, There is a cream-like material discharge container in which the cream-like material extruded into the nozzle by the negative pressure is sucked back into the stem.

[0003]

In the suction valve of the above-mentioned cream-like material discharge container, an inverted skirt-like portion 18 is provided on the inner surface of the lower end of the stem 15, and the inner periphery of the engaging plate is raised by a rising rod 25 of a poppet 21.
In addition to being slidably pressed against the outer surface, the upper limit of the poppet is determined by the lower end of the spring for pushing up the stem, and the suction valve is opened and closed by the vertical movement of the stem. However, in such a cream discharge container, when the viscosity of the cream inside the container increases, the opening and closing of the suction valve may be incomplete.

In the present invention, a spring plate is provided below the poppet so that the suction valve can be opened and closed reliably and the poppet can be formed relatively easily.

[0005]

A stem 15 hanging from a head 11 with a nozzle is fitted to the outer surface of a rising rod 25 of a poppet 21 for closing a suction valve hole 9 at the bottom of a cylinder 8 so as to be vertically movable. A cylindrical piston 20 fitted vertically movably to the stem in a certain range on the lower outer surface of the stem is fitted vertically movably into the cylinder, and a lower part of the stem where the tubular piston moves vertically. In a cream-like material discharge container with a pump in which a discharge valve hole 16 is formed and a discharge valve is formed by the discharge valve hole and the cylindrical piston, the poppet 21 is fixedly fitted in the bottom of the cylinder 8. ring
A plurality of spring plates 23 are spirally protruded from the plurality of locations 22 at approximately equal intervals, and the ends of the spring plates 23 are attached to the outer peripheral surface of a valve plate 24 that closes the upper surface of the suction valve hole 9 so that the upper surface can be opened and closed. The upright bar 25 was formed to protrude from the center of the valve plate.

A stem 15 hanging from the nozzle-equipped head 11 is vertically movably fitted to an outer surface of a rising rod 25 of a poppet 21 for closing the suction valve hole 9 at the bottom of the cylinder 8, and the lower surface of the stem is fitted to the lower outer surface of the stem. A cylindrical piston 20 fitted to the stem so as to be able to move up and down within a certain range is fitted into the cylinder so as to be able to move up and down, and a discharge valve hole 16 is formed in the lower part of the stem where the tubular piston moves up and down. In a cream discharge container with a pump having a discharge valve formed by the discharge valve hole and the cylindrical piston, a plurality of lower inner surfaces of a fixing ring 22 for fitting the poppet 21 into the bottom of the cylinder 8. The spring plates 23 are spirally projected at substantially equal intervals, and the ends of the spring plates 23 are attached to the outer peripheral surface of a valve plate 24 that closes the upper surface of the suction valve hole 9 so that the upper surface can be opened and closed. Multiple from the top to above the valve plate 24 And the upright bar 25 is formed to project from the tip of the support plate.

A stem 15 hanging from the nozzle-equipped head 11 is vertically movably fitted to an outer surface of a rising rod 25 of a poppet 21 for closing the suction valve hole 9 at the bottom of the cylinder 8, and the lower surface of the stem is fitted to the lower outer surface of the stem. A cylindrical piston 20 fitted to the stem so as to be able to move up and down within a certain range is fitted into the cylinder so as to be able to move up and down, and a discharge valve hole 16 is formed in the lower part of the stem where the tubular piston moves up and down. In the cream-like discharge container with a pump in which a discharge valve is formed by the discharge valve hole and the cylindrical piston, the poppet 21 is fitted from the top of the first fixing ring 22a into which the bottom of the cylinder 8 is fitted. ,
A plurality of support plates 26 projecting toward the center of the ring, and a member 27 having an upright bar protruding the upright bar 25 from the tip of each of the support plates, and a second fixing member fitted to the inner surface of the first fixing ring 22a. A plurality of spring plates 23 are spirally protruded from the ring 22b at substantially equal intervals, and the ends of these spring plates 23 are attached to the outer peripheral surface of a valve plate 24 which closes the upper surface of the suction valve hole 9 so that it can be opened and closed. The attachment member 28 was formed.

[0008]

When the head 11 is pushed down from the closed state of the suction valve and the discharge valve shown in FIG. 1, the suction valve is closed and the cylindrical piston 20 is delayed from the stem 15 as shown in FIG. By pushing down 13, the discharge valve is opened and the cream-like substance in the cylinder 8 is discharged through the nozzle hole 14. After reaching the lower limit, when the head 11 is released, the discharge valve closes and the stem etc. rises by pushing up the spring as shown in FIG. 3, so that the pressure in the cylinder is reduced to negative pressure, the suction valve opens, and the cream in the container is removed. Suck into cylinder.

At this time, the rising rod 25 of the poppet 21 in the stem 15 has its fitting length shortened by the rise of the stem, so that the pressure in the stem 15 is reduced to a negative pressure. The cream will be pulled back into the stem.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference numeral 1 denotes a container body having an opening at a lower end face. A sliding bottom plate 3 which can be raised by negative pressure in the container body is fitted into a lower part of a body part 2, and a center part is provided at the lower end of the body part. Fixed bottom plate 4 with head opening
Is fitted. The upper part of the trunk is a double cylinder composed of the upper peripheral wall 5 of the trunk and the inner cylinder 6 standing upright from the lower end of the peripheral wall via an inwardly extending portion.

A member 7 with a cylinder is fitted to the upper end of the container. In this member, a fitting portion to the double cylinder is attached to the outer surface of the cylinder 8, an inward flange-like bottom plate is attached to the lower end of the cylinder, and the flange-like hole serves as a suction valve valve hole 9.

Reference numeral 11 denotes a retaining cylinder of a cylindrical piston fitted on the outer surface of the cylinder, and a short cylindrical portion which is folded downward from the upper end of the cylinder to the inner surface of the upper end portion of the cylinder 8 is fitted.

Reference numeral 11 denotes a nozzle-equipped head which has a peripheral wall 12 which hangs down from the outer periphery of the top wall and hangs down between cylindrical portions forming a fitting portion of a member with a cylinder, and a stem fitting which has a large inner diameter from the center of the top wall to the lower part. The joint tube 13 is hung down, the base end of the nozzle hole 14 is opened on the lower surface of the top wall surrounded by the fitting tube, and the tip of the nozzle hole is opened on the front portion of the top wall.

The upper end is fitted into the stem fitting tube 13 and the stem 15 is hung down. The stem has a discharge valve hole 16 in the lower part, a cylindrical piston seat 17 is provided on the outer surface of the lower end, and an inverted skirt-shaped portion 18 that comes into airtight contact with the outer surface of the erecting rod of the poppet described later from the inner surface of the lower end. Set up.

A cylindrical piston is provided on a lower outer surface of the stem 15.
Fit 20. The piston also has a function as a valve body of a discharge valve in addition to the function as a piston. When the head 11 and the stem 15 descend as shown in FIG. Pressurized and discharge valve hole
3, the discharge valve hole 16 is closed with a slight delay when ascending, as shown in FIG. Therefore, the cylindrical piston is formed by integrally attaching an outer cylinder that curves inward at an intermediate portion thereof through an overhanging plate portion projecting from a lower outer surface of the inner cylinder that curves inward at the upper half portion. The cylinder is slidably fitted to the inner surface of the cylinder, and the outer surface of the upper end of the inner cylinder that rises above the upper end of the outer cylinder is hermetically pressed against the inner surface of the large-diameter portion of the stem fitting cylinder 13. When the head 11 and the like are raised as shown in FIG. 1, the lower end of the inner cylinder of the cylindrical piston comes into contact with the seat 17 at the lower end of the stem, and the upper end of the outer cylinder comes into airtight contact with the lower end of the short cylinder portion of the stopper cylinder 10, respectively. When the head is lowered, the upper end of the inner cylinder is a stem fitting cylinder as shown in FIG.
The cylindrical piston 20 is pushed down in contact with the upper end of the large-diameter portion of the thirteen. At this time, the lower end of the inner cylinder separates from the seat 17 and
Opens.

Numeral 21 denotes a poppet, as shown in FIG. 4, having a fixing ring 22 to be fitted on the inner surface of the bottom of the cylinder 8, and a plurality of spring plates 23 spirally formed at substantially equal intervals from a plurality of lower inner surfaces of the ring. The upper end of the spring plate is connected to the outer surface of the valve plate 24 which sucks the top end of the spring plate to open and close the upper surface of the valve hole 9 and protrudes the upright bar 25 upward from the center of the valve plate.

The above poppet may be formed as in the second and third embodiments shown in FIGS.

In the case of FIG. 5, the support plate 26 projects upward from the opposing position above the fixing ring 22 via the upright portion, and the upright bar 25 projects upward from the tip of the support plate. Other structures are the same as those in FIG.

In the case of FIG. 6, a plurality of support plates 26 project from the upper part of the first fixing ring 22a to be fitted into the bottom of the cylinder 8 toward the center of the ring, and the upright bars 25 from the ends of the support plates. A plurality of spring plates 23 are spirally protruded from the second fixing ring 22b fitted on the inner surface of the first fixing ring 22a at substantially equal intervals from
The distal end of the spring plate is formed by a member 28 with a valve plate attached to the outer peripheral surface of the valve plate 24 that closes the upper surface of the suction valve hole 9 so as to be able to open and close.

The poppets 21 shown in FIGS. 4 and 5 are integrally formed of synthetic resin. In the case of FIG. 6, the member 27 with the upright bar and the member 28 with the valve plate are integrally formed of synthetic resin. Then, the second fixing ring 22b may be fitted into the lower part of the first fixing ring 22a.

[0021]

[Effects of the Invention] The present invention has the above-described structure, in which spring plates 23 are spirally protruded from a plurality of locations of a fixing ring for directly or indirectly fixing the inner surface of the bottom of the cylinder 8 at substantially equal intervals. Since the tip of the spring plate is attached to the outer peripheral surface of the valve plate 24 that opens and closes the valve hole, even if the viscosity of the cream-like material stored in the container is high, the opening and closing of the discharge valve does not become incomplete. . Further, since the spring plate 24 is formed in such a manner, each spring plate 24 does not interfere with the poppet upright bar 25.

[Brief description of the drawings]

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

FIG. 2 is a sectional view of a main part when the head is lowered.

FIG. 3 is a sectional view of a main part when the head is raised.

FIG. 4 is a perspective view of a poppet used in the container shown in FIGS.

FIG. 5 is a perspective view of a poppet shown in another embodiment.

FIG. 6 is an exploded perspective view of a poppet shown in still another embodiment.

FIG. 7 is a half sectional view of a conventional container.

[Explanation of symbols]

 21 Poppet 22 Retaining ring 25 Standing bar

Claims (3)

(57) [Scope of request for utility model registration] 1. A stem 15 hanging from a nozzle-equipped head 11 is fitted to an outer surface of a standing rod 25 of a poppet 21 for closing a suction valve hole 9 at a bottom of a cylinder 8 so as to be vertically movable.
A stem portion on which a cylindrical piston 20 fitted vertically movably within a certain range with respect to the lower outer surface of the stem is fitted vertically movably into the cylinder, and the cylindrical piston moves up and down. In a creamy discharge container with a pump in which a discharge valve hole 16 is formed in the lower part and a discharge valve is formed by the discharge valve hole and the cylindrical piston, the poppet 21 is fitted into the bottom of the cylinder 8. A plurality of spring plates 23 are spirally protruded from the plurality of locations of the fixing ring 22 at approximately equal intervals, and the ends of the spring plates 23 are attached to the outer peripheral surface of a valve plate 24 that closes the upper surface of the suction valve hole 9 so that it can be opened and closed. And the erecting rod is moved from the center of the valve plate.
25. A cream-like material discharge container characterized by being formed by projecting 25. 2. A stem 15 hanging from a nozzle-equipped head 11 is fitted to an outer surface of a rising rod 25 of a poppet 21 for closing a suction valve hole 9 at a bottom of a cylinder 8 so as to be vertically movable.
A stem portion on which a cylindrical piston 20 fitted vertically movably within a certain range with respect to the lower outer surface of the stem is fitted vertically movably into the cylinder, and the cylindrical piston moves up and down. A poppet 21 is fitted into the bottom of the cylinder 8 in a cream-like discharge container with a pump in which a discharge valve hole 16 is formed in the lower part and a discharge valve is formed by the discharge valve hole and the cylindrical piston. A plurality of spring plates 23 are spirally protruded from the plurality of lower inner surface portions of the fixed ring 22 at substantially equal intervals, and the outer peripheral surface of a valve plate 24 for closing the top of each spring plate so as to open and close the upper surface of the suction valve hole 9. A plurality of support plates 26 project from the upper surface of the fixing ring to above the valve plate 24, and the upright bars 25 project from the ends of the support plates. 3. A stem 15 hanging from a head 11 with a nozzle is fitted to an outer surface of a standing rod 25 of a poppet 21 for closing a suction valve hole 9 at a bottom of a cylinder 8 so as to be vertically movable.
A stem portion on which a cylindrical piston 20 fitted vertically movably within a certain range with respect to the lower outer surface of the stem is fitted vertically movably into the cylinder, and the cylindrical piston moves up and down. A poppet 21 is fitted into the bottom of the cylinder 8 in a cream-like discharge container with a pump in which a discharge valve hole 16 is formed in the lower part and a discharge valve is formed by the discharge valve hole and the cylindrical piston. A plurality of support plates 26 projecting from the upper portion of the first fixing ring 22a toward the center of the ring, and a member 27 having an upright bar protruding the upright bar 25 from the tip of each of the support plates; A plurality of spring plates 23 are provided at substantially equal intervals from the second fixing ring 22b fitted to the inner surface.
Are formed in a spiral shape, and the end of the spring plate is formed by a member 28 with a valve plate attached to the outer peripheral surface of the valve plate 24 for opening and closing the upper surface of the suction valve hole 9 so as to be openable and closable. Creamy container.