JP4539910B2 - Liquid dispensing container - Google Patents

Description

  The present invention relates to a liquid dispensing container.

A piston is arranged in a cylinder suspended in the container body, a stem is erected from the piston through a lid body that closes the upper surface of the container body, and a pressing head with a nozzle is fitted to the upper end of the stem to actuate the operating member. However, liquid discharge containers that allow liquid in the cylinder to be discharged from the nozzle by pressing the liquid level by pressing down the operating member are well known and widely used. Since the lower part of the stem is left in the cylinder and the upper part of the stem and the head are erected above the lid, the entire container becomes bulky and inconvenient during transportation. The overall height of the container is lowered by screwing onto the lid (Patent Document 1).
Japanese Patent Laid-Open No. 2003-191989

  In the above known example invention, the cylinder is suspended in the container body, and the piston of the operating member is arranged in the cylinder. Therefore, if the liquid is not sucked into the cylinder, the piston is lowered to the lower part of the cylinder. However, if the container peripheral wall is a cylinder and liquid is filled into the peripheral wall, the piston will be suspended down to the lower part of the container to reduce the overall height of the container during transportation, etc. It will not be possible to dispense liquid in the container.

  The present invention is also provided in such a liquid dispensing container as described above so that the height of the entire container can be lowered by bringing the head close to the lid of the container body.

As a first means, a piston 18 which is disposed above the liquid level in the container body 1 and whose outer peripheral surface is in watertight contact with the inner surface of the peripheral wall 2 and a lid body 31 which stands up from the piston 18 and closes the upper surface of the container body 1 are provided. An operating member 11 comprising a stem 14 that penetrates and a head 13 that is provided at the upper end of the stem 14 and that communicates with the inside of the stem 14 is provided, and the container is pressed by liquid level pressing of the piston 18 by pressing the operating member 11 In a liquid dispensing container in which the liquid in the body 1 can be dispensed from the nozzle 12 , the piston 14 is penetrated to suspend the stem 14 into the container body 1 , and the head 13 is brought close to the lid 31. there, the lower end outer face of the stem 14, the stem through hole portion of the piston 18, when pulled up the stem 14 via the head 13, and attached engagement means for undetachable so fitted, the engagement The means is that the lower end portion of the stem 14 is a large outer diameter cylinder 16, and the large outer diameter cylinder 16 When the back piercing ridge 17 is provided around the outer surface of the lower part of the stem immediately above, and the stem insertion hole of the piston 18 is formed by the cylindrical hole 21 of the tapered cylinder 20 rising above the piston 18, and the stem 14 is pulled up. The large outer diameter cylinder 16 is configured to be engaged with the lower surface of the downward stepped portion 21a of the cylindrical hole 21, and the lower surface of the reverse piercing ridge 17 is configured to be engaged with the upper end surface of the tapered cylinder 20 .

As a second means, a stem lower portion having the first means and having the large outer diameter tube 16 and the reverse piercing ridge 17 is used as a separate member with respect to the first stem portion 14a above the lower portion. As the second stem portion 14b, the upper portion of the second stem portion 14b is closely fitted into the lower portion of the first stem portion 14a with a small outer diameter.

As a third means, the first or second means is provided, and the small-diameter cylindrical portion 5e is erected from the container body bottom wall 5 so that the lower portion of the stem 14 is watertightly fitted to the outer surface of the small-diameter cylindrical portion 5e. I let you.

As a fourth means, the first, second or third means is provided, the container body bottom wall 5 is used as a raised bottom, a liquid filling port 7 is formed in the bottom wall portion of the raised bottom, and the raised bottom is provided. A sealing body 8 for the liquid filling port 7 was provided in the lower part.

By using the first means , it is possible to keep the head 13 of the actuating member 11 close to the upper surface of the lid of the container body, that is, the state where the overall height of the container is reduced, during transportation of the container, When the user pulls up the head, the piston 18 can be fitted to the lower end of the stem, and the liquid in the container can be poured out from the nozzle by pressing the liquid level by pressing the head from this state. Since the height of the container at the time and use can be changed, there is no problem that the container becomes bulky during transportation. Further, when the stem 14 is pulled up, the piston can be surely fitted to the lower portion of the stem.

By using the third means, the liquid in the container does not enter the stem during transportation, and does not leak from the nozzle 12 through the stem.

By using the second means , the second stem portion 14b having the large outer diameter tube 16 and the back piercing protrusion 17 can be separately formed with respect to the first stem portion 14a. The first stem portion is passed through the lid 31 and the upper portion of the second stem portion is fitted into the lower portion of the first stem portion, thereby facilitating the penetration of the stem into the piston.

By using the fourth means , the liquid filling into the container body is performed by attaching a stem with a head and a piston to the container body in advance, and then inverting the container body to enter the container body from the liquid filling port 7. Since the liquid can be injected and the filling of the liquid becomes easy and the filling port sealing body 8 is positioned in the raised bottom portion, there is little chance of other objects hitting the sealing body. Leakage can be prevented.

  In the following description of the drawings, 1 is a container body. The container body has a peripheral wall 2 having the same upper and lower inner diameters, the upper end portion of the peripheral wall has a large inner diameter and a small outer diameter, and an engagement protrusion 3 is provided around the intermediate portion in the vertical direction of the small outer diameter portion. Yes. From the lower end of the peripheral wall, an upward and inward tapered wall 4 is erected via an inward flange-like portion, and the upper surface of the tapered wall is closed by the bottom wall 5. The middle diameter cylindrical portion 5c is erected from the upper end of the large diameter cylindrical portion 5a formed upright from the center of the bottom wall via the first upward stepped portion 5b, and from the upper end of the middle diameter cylindrical portion via the second upward stepped portion 5d. Thus, the small-diameter cylindrical portion 5e whose upper surface is closed is raised up. Each of these cylindrical parts is open at the bottom. Further, a part of the bottom wall portion between the large-diameter cylindrical portion 5a and the tapered wall 4 is opened, and a fitting cylinder 6 having an engaging protrusion on the outer periphery of the lower end is suspended from the peripheral edge thereof, thereby liquid filling port. 7 is formed, and a plug is fitted into the filling port, and a sealing body 8 is provided to erect the outer cylinder from the outer periphery of the lower end of the stopper via an outward flange, and the outer cylinder is fitted to the outer surface of the fitting cylinder. I am letting. A concave groove is provided around the lower inner surface of the outer cylinder, and the engagement protrusion is fitted into the concave groove.

  Reference numeral 11 denotes an operating member. As shown in FIG. 2, a stem 14 is suspended from a head 13 with a nozzle 12, and a piston 18 is fitted to the lower end of the stem. However, as shown in FIG. 1, the operating member is provided so that the stem is first penetrated into the piston 18 and the piston 18 is fitted to the lower outer surface of the stem so as not to move up and down by pulling the head 13 upward. is there.

  The lower portion of the stem 14 is formed by a second stem portion 14b which is a separate member with respect to the first stem portion 14a above the lower portion, and the upper end portion of the second stem portion is a first outer diameter portion 15 as a first outer diameter portion 15. The lower end portion of the second stem portion 14b is fitted into the lower portion of the stem portion 14a, and the large outer diameter cylinder 16 is suspended through the outward flange-like portion, and then onto the above-described first upward stepped portion 5b. Place the outer flange-shaped part on the outer surface of the large-diameter tube 16 to the outer surface of the large-diameter tube portion 5a, and the lower end of the second stem portion immediately above the large-diameter tube is connected to the outer surface of the medium-outer diameter tube 5c. The lower inner surface of the small outer diameter portion 15 is water-tightly fitted to the outer surface of the upper end portion of 5e. Further, a reverse piercing ridge 17 having a tapered upper upper surface and a horizontal lower surface is provided on the outer surface of the intermediate portion of the second stem portion.

  Reference numeral 18 denotes a piston, which stands up as a tapered cylinder 20 having a central portion of the flat plate 19 bent upward and inward at the upper end surface, and the stem 14 is inserted into the cylindrical hole 21 of the tapered cylinder. Further, a downward stepped portion 21a is formed on the inner surface of the intermediate portion of the cylindrical hole. A short cylinder 22 that is in watertight contact with the inner surface of the container peripheral wall 2 is provided on the outer periphery of the piston. The short cylinder has a small outer diameter at the middle in the vertical direction and elastically presses the outer surfaces of both upper and lower ends to the inner surface of the container peripheral wall. ing. The short cylinder connects the outer periphery of the flat plate 19 to the inner surface of the intermediate portion in the vertical direction.

  As shown in FIG. 2, when the head 13 is pulled up from the state of FIG. 1, the reverse piercing ridge 17 passes through the cylindrical hole of the tapered cylinder 20, and at this time, the upper surface of the large outer diameter cylinder 16 of the second stem portion 14b The upper stepped portion is in contact with the lower stepped portion 21a of the cylindrical hole, and the upper surface of the tapered tube 20 is in contact with the lower surface of the reverse piercing ridge 17.

  31 is a lid, and the central part of the top plate 32 is an upright cylinder 33, and the upper end part of the upright cylinder is refracted in an upward and inward direction so that the stem 14 is inserted in a watertight manner into the upright cylinder hole. The hung outer cylinder 34 is fitted to the outer surface of the small outer diameter portion at the upper end of the peripheral wall of the container body, and the engaging protrusion is fitted into the recessed groove provided on the inner surface of the outer peripheral wall. Also, the lower end of the long cylinder 36 is hung from the lower surface of the top plate near the upright cylinder 33 by fitting the outer surface of the lower end of the inner cylinder 35 hanging from the outer periphery of the top plate to the inner surface of the peripheral wall part below the large inner diameter part of the peripheral wall 2. Is brought into contact with the upper surface of the flat plate 19 of the piston 18. The upper end of the upright cylinder is engaged with the upper surface of an engaging ridge provided around the upper outer surface of the stem to prevent the stem from being pulled upward.

  The filling of the container into the liquid can be performed as follows. That is, the container is inverted from the state shown in FIG. 1, the sealing body 8 is removed and the liquid filling port 7 is filled with liquid, and then the liquid filling port is sealed with the sealing body 8. In this state, the container is packaged and transported.

  After removing the packaging, the container user pulls up the head 13 as shown in FIG. 2 to fit the piston 18 to the lower end of the stem to form the operating member 11, and then press down the operating member. When the piston 18 presses the liquid level in the container, the liquid in the container passes through the piston and the stem and is poured out from the nozzle 12.

  The bottom wall of the container body described above can be formed with the lower lid by screwing the lower lid to the lower end of the peripheral wall, etc. In this case, if the liquid filling the container body is performed with the lower lid opened. Therefore, the liquid filling port and the sealed body are unnecessary.

It is a half sectional view of the container of the present invention shown in a stem lowered state. FIG. 2 is a half cross-sectional view of the container of FIG. 1 shown in a stem pulled state.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Container body 2 Perimeter wall 5 Bottom wall 8 Sealed body
11 Actuating member 13 Head
14 Stem 14b Second stem part
17 Back piercing strip 18 Piston
20 Tapered tube 21 Tube hole
31 Lid

Claims (4)

Placed above the liquid level inside the container body (1) , the piston (18) whose outer peripheral surface is in watertight contact with the inner surface of the peripheral wall (2 ), and the piston (18) standing up, closing the upper surface of the container body (1) Actuating member (11) comprising: a stem (14) penetrating through the lid (31), and a head (13) provided at the upper end of the stem (14) and having a nozzle (12) communicating with the inside of the stem (14) In a liquid dispensing container in which the liquid in the container body (1) can be dispensed from the nozzle (12) by pressing the liquid level of the piston (18) by pushing down the operating member (11) , the piston ( 18) is penetrated and the stem (14) is suspended into the container body (1) , and the head (13) is brought close to the lid (31) , and the outer surface of the lower end of the stem (14) , the stem insertion hole portion of the piston (18), when pulled up the stem (14) through the head (13), and attached engagement means for undetachable so fitted, the engagement means comprises a stem ( When the lower end of 14) is a large outer cylinder (16) A taper is provided around the outer surface of the lower portion of the stem immediately above the large outer diameter tube (16), and the stem insertion hole of the piston (18) stands up above the piston (18). When the stem (14) is pulled up, the large outer diameter cylinder (16) engages the lower step (21a) of the cylinder hole (21) and the lower surface of the cylindrical cylinder (20). In addition, the liquid dispensing container is configured such that the lower surface of the reverse piercing ridge (17) is engaged with the upper end surface of the taper tube (20) . The stem lower part having the large outer diameter tube (16) and the back piercing ridge (17) is used as a second stem part (14b) as a separate member with respect to the first stem part (14a) above the lower part. 2. The liquid dispensing container according to claim 1, wherein the second stem portion (14b) has an upper portion having a small outer diameter and is tightly fitted into a lower portion of the first stem portion (14a). The liquid injection according to claim 1 or 2, wherein a small diameter cylindrical portion (5e) is erected from the container bottom wall (5), and a lower portion of the stem (14) is watertightly fitted to the outer surface of the small diameter cylindrical portion (5e). Out container. With the bottom wall (5) of the container body as a raised bottom, a liquid filling port (7) is drilled in the bottom wall portion of the raised bottom, and is positioned in the lower bottom portion of the raised bottom so that the liquid filling port (7) is sealed ( 8. The liquid dispensing container according to claim 1, 2 or 3, wherein 8) is provided.