JPS5839617Y2 - feeding container - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a dispensing container suitable for containers such as cosmetics.

BACKGROUND OF THE INVENTION Some dispenser containers used for cosmetic products such as lipsticks and ticks are provided with filling holes in the bottom wall of a grooved tube for filling an inner tray with lipsticks, ticks, and the like.

If such a filling hole is open to the filling liquid, it looks unsightly and becomes an entrance for dust, etc., so it is necessary to close the filling hole.

Conventionally, a method in which an outer cylinder is fitted to the lower outer periphery of the grooved pipe has been proposed as a method for closing the filling hole as described above, but the method using such an outer cylinder is difficult to store the grooved pipe and the outer cylinder. At present, there is still room for improvement in terms of ensuring a reliable connection.

That is, for example, in the case of a fitting that fits into a filling hole of a retaining piece provided on the outer periphery of the upper end of a fitting tube that is fixed upright in an outer tube and presses down the bottom wall of the grooved tube from above, the grooved tube is Although upward movement of the cylinder is prevented, it may move downward and the engagement may become loose.

In addition, there are some that have vertical grooves between the fittings to facilitate fitting into the filling hole, but these do not make much of a difference in the retention effect.

In order to solve these drawbacks, two retaining pieces having vertical grooves are provided between the fittings on the outer periphery of the upper end of the fitting at a desired interval in the axial direction. There are some that sandwich the bottom wall, but if the fitting tube as described above is made of synthetic resin, the mold becomes complicated, and the cost is 1.
This has the disadvantage of causing an increase in yield and a decrease in yield.

This invention solves the above-mentioned drawbacks, and provides a feeding container that ensures reliable engagement between the groove tube and the outer cylinder fitted to the lower outer periphery of the groove tube, and also reduces manufacturing costs. purpose.

In order to achieve the above object, this invention provides a dispensing container of the type described above, in which an outer cylinder having a stepped part supporting the lower end of the grooved tube is provided around the inner circumferential wall thereof is fitted onto the outer periphery of the lower part of the grooved tube. , a window hole is bored in the bottom wall of the outer tube, a filling hole for filling cosmetics is bored in the bottom wall of the groove tube, and the outer diameter is slightly larger than the filling hole in the outer periphery of the upper end, and An engagement formed by a protrusion section having a large number of annular protrusions or spiral protrusions arranged around the circumference in the axial direction with a fine pitch, and a tapered part adjacent to the protrusion section and gradually decreasing in diameter toward the upper end. The push-in cover has a rod and a bottom plate is formed at the lower end of the engaging rod, the bottom plate is engaged with the bottom wall around the window hole of the outer cylinder, and the protruding portion of the engaging rod is inserted into the groove. The filling hole of the tube (characterized by a two-way fit).

An embodiment of this invention will be described below with reference to the drawings.

In FIGS. 1 to 3, a spiral tube 1 is provided with a spiral groove 2 on opposing peripheral walls, and is fitted onto the outer periphery of a groove tube 3. As shown in FIGS.

The groove tube 3 is made of an elastic material, and two grooves 4 extending in the axial direction are provided on the opposing peripheral walls, and a locking piece 5 on the outer periphery of the upper end prevents the spiral tube 1 from moving upward. are provided around the area.

In addition, the lower part of the groove pipe 3 is a large diameter part 6, and the stepped part 6
a prevents the spiral tube 1 from moving downward.

A plurality of fitting grooves 7 extending in the axial direction are provided on the lower outer peripheral surface of the large diameter portion 6, and a bottom wall 9 having a filling hole 8 for filling cosmetics in the center is integrally formed on the lower end surface. has been done.

The outer cylinder 10 is fitted to the lower outer periphery of the groove tube 3, and the lower wall thickness thereof is increased, and a step 11 is formed on the inner peripheral surface. is supported.

Further, a fitting protrusion 7a that fits into the fitting groove 7 of the groove tube 3 is provided on the upper inner circumferential surface of the stepped portion 11, and the two are meshed and fitted as shown in FIG.

A fitting part 12 is provided on the outer periphery of the upper end of the outer cylinder 10, and a cap 13 is fitted therein.

The bottom wall 14 of the outer cylinder 10 is formed integrally with the peripheral wall, and has a window hole 15 in its center and a dish-shaped recess 16 on the outward facing side.
are provided for each.

The window hole 15 and the filling hole 8 of the groove tube 3 are engaged with a push-in lid 19 consisting of a bottom plate 17 that fits into the recess 16 and a rigid engagement rod 18 that stands integrally with the bottom plate 17. Matching stick 18
are inserted and force-fitted respectively.

A plurality of independent V-shaped circumferential grooves are arranged in the axial direction on the outer periphery of the upper end of the engagement rod 18 to form a plurality of circumferential protrusions with a fine pitch, and the outer diameter is slightly larger than the filling hole 8. Large protrusion 2
0, and a tapered portion that is formed to have a diameter gradually smaller in the upper end direction is provided adjacent to the protrusion 20, and the protrusion 20
is firmly fitted so as to bite into the inner peripheral surface of the filling hole 8, and the bottom wall 9
and the engagement rod 18 are engaged to prevent the groove tube 3 and the outer cylinder 10 from coming apart from each other in the axial direction.

On the other hand, the bottom plate 17 is fitted into the recess 16 and engaged with the bottom wall 14.

An inner tray 22 on which a lipstick 21 is placed is housed inside the groove tube 3.

Two protrusions 23 are provided on the outer circumference of the inner plate 22 at opposing positions, and the protrusions 23 protrude from the groove 4 of the groove tube 3 and fit into the helical groove 2 of the spiral tube 1.

When using the above-mentioned device, the cap 13 is removed from the assembled state as shown in FIG.

Then, the inner plate 22 moves upward within the groove tube 3 to expose the lipstick 21, and by stopping the rotation of the outer cylinder 10, the exposed lipstick 21 is held in an appropriate position for use. It is.

On the other hand, when the outer cylinder 10 is rotated in the opposite direction, the inner tray 22 moves downward within the groove tube 3, and the lipstick 21 is stored in the original groove tube 3.

In the above embodiment, the groove tube 3 and the push-in lid 19 are manufactured,
For ease of assembly, it is preferably made of synthetic resin.

Although the object of this invention can be achieved even if the protrusion portion 20 of the push-in lid 19 is a spiral protrusion, the engagement is more reliable if it is constituted by individual circumferential protrusions.

This device is as described above, and the bottom plate of the push-in lid is engaged with the bottom wall around the window hole of the outer cylinder, and the protrusion of the engaging rod is firmly fitted into the filling hole of the groove tube. and the outer cylinder can be firmly engaged.

In other words, the strong fitting of the protruding part during the engagement can be carried out by inserting the protruding part without force by using the tapered part adjacent to the protruding part, and the protruding part has an annular or spiral protruding part with a fine pitch. Since the filling hole is arranged around a large number of circumferences in the direction, it is only necessary to forcefully fit the filling hole into any part of the protrusion, and therefore the thickness of the bottom wall of the groove pipe with the filling hole and the The outer cylinder and push-in lid can be manufactured without requiring high dimensional accuracy in the corresponding position of the stepped part of the outer cylinder and the protrusion of the engagement rod, and once engaged, the grooved pipe The upward movement is reliably prevented by the protruding ridge portion having an outer diameter slightly larger than the filling hole, and the downward movement is reliably prevented by the stepped portion, so that there is no possibility of rattling in the axial direction.

In addition, there is no need to provide vertical grooves or retaining pieces on the engagement rod of the push-in lid as in conventional fitting cylinders, so the mold for manufacturing the push-in lid can be of simple structure and at low cost. It has excellent effects such as improving product yield.

[Brief explanation of the drawing]

The drawing shows one embodiment of the dispensing container of this invention.
1 is a longitudinal sectional view, FIG. 2 is a cross sectional view taken along line A-A in FIG. 1, and FIG. 3 is an exploded longitudinal sectional view of FIG. 1, with the cap removed. 1...Spiral tube, 3...Groove tube, 6...
... Large diameter part, 7... Fitting groove, 7a...
- Fitting protrusion, 8...Filling hole, 9...Bottom wall, 10...Outer cylinder, 11...Step part, 1
4...Bottom wall, 15...Window hole, 16...
...Recess, 17...Bottom plate, 18...
・Engagement rod, 19... Push-in lid, 20...
Projection.

Claims (1)

[Scope of utility model registration request] Groove pipe 3 having grooves 4 extending in the axial direction on opposing peripheral walls
and an inner plate 22 that protrudes from the groove of the groove tube, and a protrusion 23 installed inside the groove tube and provided on the opposing outer circumferential walls; A dispensing container comprising a helical tube 1 in which a protrusion of the inner tray fits into a spiral groove 2, and the inner tray moves up and down in the groove tube by relative rotation between the groove tube and the spiral tube. , an outer cylinder 1 having a stepped portion 11 surrounding the inner peripheral wall for supporting the lower end of the groove pipe;
0 is fitted to the outer periphery of the lower part of the groove tube, a window hole 15 is bored in the bottom wall 14 of the outer tube, and a filling hole 8 for filling cosmetics is bored in the bottom wall 9 of the groove tube. a protrusion 20 having a large number of annular protrusions or spiral protrusions with an outer diameter slightly larger than the filling hole and having a fine pitch provided around the outer periphery of the upper end in the axial direction;
A push-in lid 19 has an engaging rod 18 formed with a tapered portion that gradually decreases in diameter in the upper end direction adjacent to this protruding portion, and a bottom plate 17 is formed at the lower end of this engaging rod. The dispensing container is characterized in that the bottom plate 17 is engaged with the bottom wall 14 around the window hole of the outer cylinder, and the protrusion 20 of the engagement rod is tightly fitted into the filling hole 8 of the groove tube. .