JP5252504B2 - Container with suction pipe - Google Patents

Description

  The present invention relates to a container with a suction pipe that folds a bottom wall into a body after molding.

A container with a suction pipe in which a liquid suction pipe is suspended from a liquid discharge pump into the body is known as a prior art (Patent Document 1).

Japanese Patent Laid-Open No. 08-230961

However, in order to minimize the remaining amount of liquid in the body part, the prior art is configured to bend the suction pipe and position its lower end on the bottom periphery of the body part. Has a problem that a dedicated facility is required, resulting in an increase in cost.

The present invention has been made to solve the above problems, and provides a container with a suction pipe capable of reducing the cost, having a strong bottom wall, and reducing the remaining amount as much as possible. With the goal.

In order to solve the above-described problems, the present invention provides a suction pipe in which a liquid discharge pump 30 is attached to a mouth and neck that stands up from the upper end of the body 2 and a suction pipe 50 is suspended from the liquid discharge pump into the body. A container with
The body portion 2 includes a circumferential V-groove 17 formed by a reduced diameter in a part of the lower portion thereof,
The trunk bottom wall 4 includes a first form A projecting downward from the trunk part and a second form B folded back into the trunk part,
In the second form B, the frustoconical peripheral wall 5 is erected from the lower end of the body part into the body part, and the upper surface of the peripheral wall is inclined obliquely downward and forward, and the upper surface of the peripheral wall is recessed to form the liquid retaining part 7. And forming the barrel portion below the bottom of the V-groove 17 in watertight contact with the frustoconical peripheral wall 5 to form the leg cylinder 20 and tilting the upper surface of the leg cylinder 20 obliquely downward and forward. Formed on the tapered surface 21;
The suction pipe 50 is drooped linearly into the liquid retaining portion 7.

Further, according to the present invention, the recess 60 is formed in the bottom surface portion of the liquid retaining portion 7 below the suction pipe 50, the front end opens into the recess, and the rear end is located in front of the frustoconical peripheral wall 5. It is characterized in that a channel groove 61 opened at the upper end of the part is provided.

Further, in the present invention, when the boundary portion between the bottom wall 4 and the body portion 2 is bent to form an outwardly convex folding groove 15, the bottom wall 4 is folded back into the body portion 2. The folding line is provided so as to be formed on the upper edge 16 of the opening of the folding groove 15.

  In the present invention, since the upper surface of the leg tube is formed into a tapered surface that is inclined obliquely downward and forward, the gap between the inner surface of the body part above the V groove and the outer surface of the frustoconical peripheral wall is the lowest of the frustoconical peripheral wall. Therefore, since all the liquid in the gap flows into the liquid retaining portion, the remaining amount can be reduced as much as possible.

Further, in the present invention, since the suction pipe hangs down in a straight line, it is not necessary to bend the pipe, so that the cost can be reduced.

  Furthermore, in the present invention, since the concave portion and the concave groove for the flow path are formed in the bottom surface portion below the suction pipe, the remaining amount is combined with the above by positioning the lower end of the suction pipe in the concave portion where the liquid is accumulated. It can be further reduced.

  Further, in the present invention, since the boundary portion between the bottom wall and the trunk portion is bent and the outwardly convex folding groove 15 is provided, the bottom wall can be formed without changing the wall thickness between the bottom wall and the trunk portion. The container can be folded back into the body portion, and therefore, the height difference of the folded-up portion due to the fluctuation of the wall thickness is eliminated, and the stability of the container is increased.

It is a front view which shows the 1st form A of the container with a suction pipe which concerns on this invention. FIG. 2 is a view corresponding to FIG. It is a front view which shows the state which mounted | wore the container of the 2nd form B with the liquid discharge pump. It is principal part sectional drawing which shows the 1st and 2nd form. It shows other embodiment and is principal part sectional drawing of 1st form A. FIG. FIG. 6 is a diagram corresponding to FIG. FIG. 7 is an operation explanatory diagram showing a liquid flow, showing a front upper surface of the bottom wall of FIG. 6.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  Reference numeral 1 denotes a container, which has a mouth-and-neck portion 3 erected from the upper end of the trunk portion 2 via a shoulder portion, and a liquid discharge pump described later is attached to the mouth-and-neck portion 3.

  The bottom wall 4 that closes the lower end surface of the body portion 2 includes a first form A that protrudes downward from the bottom surface of the body portion as shown in FIG. 1, and a second form B that is folded back into the body portion as shown in FIG. And have. First, the second form B as the final form will be described.

  The bottom wall 4 in the second form B has a truncated cone-shaped peripheral wall 5 standing from the lower end of the body part 2 into the body part, the upper surface 6 of the peripheral wall 5 is inclined obliquely downward and forward, and the upper surface 6 of the peripheral wall is recessed. And the liquid retaining part 7 is formed.

  The liquid retaining portion 7 is formed of a bottom surface 8 that is inclined obliquely downward and rearward, and a peripheral surface 9 that rises obliquely upward and outward from the periphery of the bottom surface 8 and intersects the upper end of the peripheral wall 5.

  Since the peripheral wall 5 is in the shape of a truncated cone, a gap S is formed between the outer surface of the peripheral wall 5 and the inner surface of the body portion 2, but most of it can be eliminated by forming a leg cylinder 20 described later.

  Next, the 1st form A which shows the form at the time of shaping | molding is demonstrated. In the first form A, the bottom wall 4 hangs down the truncated cone-shaped peripheral wall 10 from the lower end of the body part 2 and inclines the peripheral wall 10 lower surface 11 obliquely upward and forward, and then projects the peripheral wall lower surface 11 downward. Then, the liquid retaining portion bottom surface 8 forming surface 12 inclined obliquely upward and forward, and the liquid retaining portion peripheral surface 9 forming surface rising obliquely upward and outward from the periphery of the bottom surface forming surface 12 and intersecting the lower end of the peripheral wall 10 13 are formed.

Moreover, the boundary part of the trunk | drum 2 and the bottom wall 4 is bent, and the folding groove | channel 15 convex outward is formed in the circumferential direction. The folding groove 15 can be folded back into the body 2 when the bottom wall 4 is pressed into the body 2 for folding, with the upper edge 16 of the opening of the folding groove 15 as a folding line. It is provided to make it.

The cross-sectional shape of the folding groove 15 is not particularly limited as long as the upper edge 16 of the opening can be a folding line of the bottom wall 4, but typically a U-shape or a U-shape is preferable.

  Furthermore, a V-shaped groove 17 is formed in the lower end portion of the body portion 2 by a reduced diameter, and the portion of the body portion 2 below the bottom of the V-groove is brought into watertight contact with the frustoconical peripheral wall 5. It forms in the leg cylinder 20, and forms in the taper surface 21 which inclines the leg cylinder upper surface diagonally downward and forward. At this time, the heights of the front ends of the leg cylinder 20 and the peripheral wall 5 are substantially matched, but the height of the rear end of the leg cylinder 20 is set lower than the height of the rear end of the peripheral wall 5.

  A liquid discharge pump 30 is provided with a cylinder. The cylinder has an outward flange 32 attached to the upper outer surface of the cylinder body 31 that hangs down into the body 2, and is placed on the upper end of the neck 3. Further, a suction valve is attached to the lower portion of the cylinder body 31, and the cylinder body 31. A fitting tube 33 for fitting the suction pipe is suspended from the lower end.

  An operating member 34 is inserted into the cylinder 31 so as to be movable up and down, and a stem 36 is raised from a cylindrical piston 35 that is fitted into the cylinder 31 so as to be movable up and down.

  Reference numeral 40 denotes a nozzle head. A head main body 41 is fitted to the upper end of the stem 36 and a nozzle 42 is projected forward from the head main body 41. A cap 45 is provided with an inward flange at the upper end of the cylindrical body screwed to the outer surface of the mouth and neck portion 3, and the outward flange 32 of the cylinder body 31 is pressed against the upper end of the mouth and neck portion 3 with the inward flange. .

  A suction pipe 50 is fitted into the fitting cylinder 33 that hangs down from the lower end of the cylinder body 31 so that the lower end hangs down into the liquid retaining portion 7 of the bottom wall 4. As the suction pipe 50, a pipe that does not bend like a conventional product but extends linearly is used.

Next, the operation will be described.
At the time of molding, the bottom wall 4 is molded so as to be in the first form A. After the molding, when the bottom wall 4 in the first form A is pressed into the body portion 2, the bottom wall 4 is folded back into the body portion 2 with the opening upper edge 16 of the folding groove 15 as a folding line.

  When the nozzle head 40 is pushed down in the state of the second form B, the in-body liquid is discharged from the nozzle 42 in a desired manner through the suction pipe 50 and the operation member 34. Even if the liquid in the body portion decreases and the water level of the liquid in the gap S becomes lower than the height of the rear end of the peripheral wall 5, the upper surface of the peripheral wall 5 is inclined obliquely downward and forward. Can flow into. Further, since the upper surface of the leg tube 20 is formed on the tapered surface 21 inclined obliquely downward and forward, in other words, the bottom of the gap S located above the upper end of the leg tube 20 is higher than the upper end of the front end of the peripheral wall 5. Therefore, all the liquid in the gap S flows into the liquid retaining part 7, and therefore the remaining amount can be almost eliminated.

5 to 7 show a second embodiment. In this embodiment, in the state of the second form B, a recess 60 is formed in the bottom surface portion of the liquid retaining portion 7 below the suction pipe 50, and the front end is shown. Is opened in the recess 60, the rear end is opened in the front upper end of the frustoconical peripheral wall 5, and the left and right widths are slightly smaller than the left and right widths of the recess 60 as shown in FIG. A channel groove 61 is provided. The rear end of the recess 60 may coincide with the rear end of the bottom surface 8 or may be spaced slightly forward from the rear end of the bottom surface 8. In the first form A, as shown in FIG. 5, the recess 60 is formed by projecting the rear end of the bottom surface 8 obliquely downward and forward. Since other points are the same as those of the first embodiment, the same reference numerals are given and description thereof is omitted.

  By forming in this way, when the remaining amount decreases, the liquid in the liquid retaining portion 7 flows into the concave portion 60 through the concave groove 61 for flow path and is stored. It is possible to further reduce the remaining amount by being positioned within 60.

  INDUSTRIAL APPLICABILITY The present invention can be used in the field of a container with a suction pipe that folds a bottom wall into a body after molding.

DESCRIPTION OF SYMBOLS 1 Container 2 trunk | drum 3 mouth neck part 4 bottom wall A 1st form B 2nd form 5 frustoconical peripheral wall 6 peripheral wall upper surface 7 liquid retaining part S clearance 11 peripheral wall lower surface 12 surface 13 for liquid retaining part bottom surface 8 formation liquid retaining Part peripheral surface 9 forming surface 15 Groove 16 Upper opening edge 30 Liquid discharge pump 31 Cylinder body 35 Cylindrical piston 40 Nozzle head 50 Suction pipe 60 Concave 61 Channel groove

Claims (3)

A container with a suction pipe in which a liquid discharge pump 30 is attached to a mouth and neck that stands up from the upper end of the body part 2, and a suction pipe 50 is suspended from the liquid discharge pump into the body part,
The body portion 2 includes a circumferential V-groove 17 formed by a reduced diameter in a part of the lower portion thereof,
The trunk bottom wall 4 includes a first form A projecting downward from the trunk part, and a second form B folded back into the trunk part,
In the second form B, the frustoconical peripheral wall 5 is erected from the lower end of the body part into the body part, and the upper surface of the peripheral wall is inclined obliquely downward and forward, and the upper surface of the peripheral wall is recessed to form the liquid retaining part 7. And forming the barrel portion below the bottom of the V-groove 17 in watertight contact with the frustoconical peripheral wall 5 to form the leg cylinder 20 and tilting the upper surface of the leg cylinder 20 obliquely downward and forward. Formed on the tapered surface 21;
A container with a suction pipe, wherein the suction pipe 50 is suspended linearly into the liquid retaining portion 7. A recess 60 is formed in the bottom portion of the liquid retaining portion 7 below the suction pipe 50, and the front end opens into the recess and the rear end opens at the front upper end of the frustoconical peripheral wall 5. The container with a suction pipe according to claim 1, wherein a groove for a road 61 is provided. When a boundary portion between the bottom wall 4 and the body portion 2 is bent to form an outwardly protruding folding groove 15, when the bottom wall 4 is folded back into the body portion 2, The container with a suction pipe according to claim 1 or 2, characterized in that it can be formed on the upper edge 16 of the opening of the groove (15).

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