JPH07315414A - Refill-type container for liquid - Google Patents

Abstract

PURPOSE:To easily assemble component parts and refill an outer container with an inner container by a method wherein the inner container is contained in the outer container, and an outer peripheral edge of a shoulder cover and a rotating cylinder are detachably fitted to the outer container and the inner container respectively through specific engaging parts. CONSTITUTION:In the assembly of a container, an inner container 2 is fitted in an outer container 1. A neck part 10 of the inner container 2 is inserted through a center hole 14 of a shoulder cover 3 with a rotating cylinder 15 set in a release position, and a planar projection 11 is loosely fitted to the inside of d flange 17. Furthermore, a peripheral wall 3a of the shoulder cover 3 is fitted over a mouth part 1a of the outer container 1. A projected piece 18 is guided to the lower end of an engaging piece 12 by rotating the rotating cylinder 15 to be clamped together with the flange 17. The engaging piece is also engaged with a recess 6. On the other hand, when the inner container is replaced by a new inner container 2, the rotating cylinder is rotated reversely to disengage the flange 17 and the projected piece 18 from the engaging piece 12, and the engaging piece is disengaged from the recess 6. After that, the shoulder cover 3 and the used inner container 2 are pulled out of the outer container 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refill container for liquid such as lotion and liquid shampoo.

[0002]

2. Description of the Related Art Containers have been refilled in order to save resources and reduce pollution while maintaining a high quality appearance, and to supply them at low cost. As an example of such a container, there is the invention of Japanese Patent Publication No. 4-24045 shown in FIG. As shown in the vertical cross-sectional view of FIG. 5, this container is filled with the cosmetics itself in an inner container 52 called a refill container, and when used, it is attached to an outer container 51 excellent in design and practical use. The inner container 5
When the cosmetic product 2 is used up, the inner container 52 filled with new cosmetic product is replaced with the outer container 5 instead of the empty inner container 52.
The outer container 51 can be used repeatedly after being mounted on the first container 1.

That is, the structure of this refill container for liquid is as follows:
The inner container 52 is removably positioned and mounted on the outer container 51 provided with the decorative cover 51a, the opening of the outer container 51 accommodating the inner container 52 is covered, and the shoulder cover 53 is screwed to the outer container 51, and the shoulder The mouth portion 52 b of the inner container 52 is projected from the central insertion opening of the cover 53, and the cap 54 is attached to the mouth portion 5.
It is adapted to be screwed or concavely fitted to the 2b. The outer container 51 and the inner container 52 are provided with a plurality of concavo-convex lines or wide concave grooves or convex lines for positioning and fitting with each other in order to prevent mutual rotation and rattling in the circumferential direction (not shown). The shoulder cover 53 and the outer container 51 are provided with threaded portions for fitting with each other, and the inner and outer containers 52, 51 and the shoulder cover 53 are provided.
It is configured to prevent rattling of the upper and lower parts by integrally mounting and mounting.

The structure of the refill container for liquids described above is intended only to allow the aesthetic appearance of the outer container and the inner container to be replaced, and the ease of replacement work and the ease of making the container are taken into consideration. Absent.

[0005]

The problem to be solved by the present invention is to solve the problems listed below, which have not been considered so much in the conventional liquid refill containers. a. Since the outer container and the shoulder cover are screwed together to be attached and detached to replace the inner container, it takes time to attach and detach the shoulder cover. b. Since the upper and lower parts of the inner container are sandwiched between the shoulder cover and the bottom of the outer container, a gap may be created under the shoulder cover depending on the user's tightening condition, which may impair the aesthetics and, on the contrary, cause excessive tightening load. There is a risk of damaging the vessel, and a high degree of dimensional accuracy is required in manufacturing. c. Since the structure is such that the outer container and the inner container are directly held in a fitted state, in order to fit and remove the inner container, in addition to the attachment and detachment of the shoulder cover, there is a separate fitting and removal between the outer container and the inner container. Therefore, the operability is poor. The present invention has been made to solve this problem in view of the above problems.

[0006]

[Means for Solving the Problems] An outer container in which a pair of recesses are provided on both sides of the center of the opening of a body portion of an elliptic cylinder having a bottom with a center interposed therebetween; and the outer container is housed in the outer container. It is composed of a bottle body, and a plate-like projection is integrally provided around the lower outer side of a neck portion which is fitted with a lid on the shoulder portion of the bottle body and stands upright. An inner container in which a pair of locking pieces are integrally projectingly sandwiched; a top plate fitted to the mouth of the outer container; an inward flange rotatably fitted to the plate-like protrusion , And a pair of inward projecting pieces that cooperate with this to sandwich the locking pieces from above and below, and a pair of engaging pieces that engage with the recesses are projecting outward at the base end portion. A rotary cylinder rotatably fitted in a central hole of the top plate.

[0007]

As shown in FIG. 3, the outer container 1, the inner container 2, and the shoulder cover 3 with the rotating cylinder 15 are integrally assembled and fixed to each other, and the rotating cylinder 15 is rotated counterclockwise. Rotate about 90 degrees. Then, the engaging pieces 12, 12 sandwiched from above and below by the flange 17 and the projecting pieces 18, 18 are disengaged from these, and at the same time, the engaging pieces 19, 1 engaged with the recesses 6, 6.
9 is also disengaged, and the fixing of the three main parts to each other is released. Therefore, the shoulder cover 3 and the used inner container 2 are pulled out from the outer container 1 and removed to prepare for replacement of a new inner container 2.

Next, the new inner container 2 is fitted into the outer container 1, the shoulder cover 3 is fitted into the opening 1a of the outer container 1, and the rotating cylinder 15 is rotated clockwise by about 90 degrees. Then, the projection pieces 18, 18 sandwich and engage the engagement pieces 12, 12 from below with the flange 17, and at the same time, the engagement pieces 19, 19 are engaged with the recesses 6, 6 as well. The three parts are fixed to each other and are ready for use as a liquid dispensing container.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is an exploded perspective view of a liquid refill container of the present invention, FIG. 2 is an explanatory view of the shoulder cover 3 turned upside down and seen from the back side, FIG. 3 is a longitudinal sectional view in the minor axis direction, and FIG. 4 is a longitudinal sectional view in the major axis direction. It is a figure.

Reference numeral 1 is an outer container having a bottomed elliptic cylindrical body 4 for accommodating the inner container 2, which is made of a slightly thick synthetic resin and has a concave projection pattern on the outside thereof. It is formed and decorated with various printing methods and hot stamps.

A pair of recesses 6 and 6 are provided inside the opening 5 of the outer container 1 on the minor axis side and curved toward the inside of the wall of the body 4 with the center therebetween. The recesses 6 and 6 are engaged with a pair of engaging pieces 19 and 19 integrally formed to project from a collar-shaped base end portion 20 of a rotary cylinder 15 which will be described later to prevent the shoulder cover 3 from coming off. Has become. A mouth portion 1a is formed outside the opening portion 5 of the body portion 4 via a step portion, and a peripheral wall 3a vertically provided on the peripheral edge of the shoulder cover 3 is fitted to the outer container 1 and the shoulder cover. 3 is well established.

Reference numeral 2 is an inner container composed of a bottle body 7 molded by a blow molding method or an injection blow molding method using a general-purpose synthetic resin such as polyethylene or polypropylene, and an ellipse substantially similar to the inner diameter of the outer container 1. It has a shape. From the shoulder portion 8 of the bottle body 7 to the outer peripheral surface of the male screw 2
The neck 10 on which a is screwed is erected, and the packing 9a
The lid 9 fitted with is fitted and filled with the content liquid and sealed. Incidentally, in this embodiment, the lid 9 is a rotary cylinder 1 which will be described later.
The diameter is set to be smaller than the inner diameter of the inwardly facing flange 17 provided at the upper end of 5.

Below the male screw 2a of the neck 10, a plate-like projection 11 is integrally provided around the neck 10 so as to fit loosely inside the flange 17.
The upper surface is set substantially flush with the upper surface of the flange 17.

Below the plate-like projection 11, a bottle body 7 is provided.
A pair of locking pieces 12 and 12 are formed so as to project on the shorter diameter side of the center of the locking piece. The locking pieces 12 and 12 are sandwiched from above and below by a flat lower surface of the flange 17 of the rotary cylinder 15 and a pair of projecting pieces 18 and 18 which are formed to project inward of the rotary cylinder 15. The upper end surface 12a is in flat contact with the smooth back surface of the flange 17 so that there is no rattling, and the lower end surface 12b has protrusions 18, 18 at both left and right ends.
It is formed into a gentle curved surface downward so that it can be easily guided.

Reference numeral 3 is a shoulder cover in which the rotating cylinder 15 is rotatably and irremovably fitted in a central hole 14 formed in the center of an elliptical top plate 13. A peripheral wall 3 a is vertically provided from the peripheral edge of the cover 3, and the mouth portion 1 of the outer container 1
It is fitted on a.

In order to mount the rotary cylinder 15 on the top plate 13 of the shoulder cover 3, the rotary cylinder 15 is press-fitted into the center hole 14 provided in the top plate 13 from the back surface. As a result, the small protrusion 3b protruding outside the rotating cylinder 15 is forcibly fitted into the center hole 14, and the top plate 13 is rotatably sandwiched between the small protrusion 3b and the flange-shaped base end 20. And it is fitted so that it cannot be removed.

FIG. 2 shows a shoulder cover 3 fitted with a rotary cylinder 15.
It is explanatory drawing which looked at from the back surface. Base end portion 20 of the rotating cylinder 15
And a pair of outwardly projecting engagement pieces 19 and 19 projecting inwardly and a pair of inwardly projecting pieces 18 and 18 projecting inward in the rotary cylinder 15.
The parts of the container are in the released state when the shoulder cover 3 faces the long diameter side, and the parts are assembled as a container when the shoulder cover 3 is rotated by 90 degrees to the short diameter side of the shoulder cover 3. become. Reference numerals 3c and 3c are stoppers that are vertically provided from the top plate 13, and have a function of preventing the turning cylinder 15 from overturning by abutting on the engaging pieces 19 and 19. In the present embodiment, the turning range of the turning barrel 15 is set to 90 degrees, but the turning distance can be freely set by vertically setting the stoppers 3c, 3c to a desired arc distance. As a means for knowing whether the rotating cylinder 15 is in the locking position or the releasing position, it is preferable to form an alignment mark on the outer surface of the rotating cylinder 15 and the upper surface of the top plate 13.

Next, in order to assemble the container of the present invention comprising the above-mentioned parts, the inner container 2 is fitted into the outer container 1 and the center hole 14 of the shoulder cover 3 in which the rotating cylinder 15 is set to the release position. Then, the neck portion 10 of the inner container 2 is inserted to loosely fit the plate-like projection 11 inside the flange 17, and the peripheral wall 3a of the shoulder cover 3 is fitted to the mouth portion 1a of the outer container 1. When the rotating cylinder 15 is rotated clockwise by 90 degrees in FIG. 3 with fingers, the projecting pieces 18, 18 are guided by the lower ends of the engaging pieces 12, 12 and the flange 17 positioned on the upper side. Is clamped from above and below. At the same time, the collar-like base end portion 2 of the rotating cylinder 15
The engaging pieces 18, 18 protruding outward from 0 are also engaged with the recesses 6, 6 so that the three main parts are fixed to each other and ready to be assembled and used as a liquid pouring container.

When the content liquid is completely used up and replaced with a new inner container 2, the outer container 1, the inner container 2 and the shoulder cover 3 are integrally assembled and fixed to each other and rotated from the state of FIG. The tube 15 is rotated 90 degrees counterclockwise. Then, the engagement between the flange 17 and the protruding pieces 18, 18 and the locking pieces 12, 12 is released, and at the same time, the engagement with the engaging pieces 19, 19 engaged with the recesses 6, 6 is released. The fixing of the three main parts to each other is released. Therefore, the shoulder cover 3 and the used inner container 2 are pulled out from the outer container 1 and removed, and replaced with a new inner container 2.

The tubular container having an elliptical cross section has been described in detail as a preferred embodiment of the present invention. In the refillable container of the present invention, the inner container 2 is fitted into the outer container 1 and the shoulder cover 3 is inserted. Since the structure is assembled by fitting and rotating the rotating cylinder 15, even if the cylindrical container has an oval cross section,
It can be implemented even if the ellipse has a portion curved inward and outward in design.

In the container of the present invention, the inner container 2
Is engaged with the inside of the outer container 1 through the rotating cylinder 15 of the shoulder cover 3 and is not in close contact with the inner wall of the body 4. However, in consideration of an unexpected impact from the outside, by providing an appropriate number of thin vertical ribs on the inner lower portion of the body portion 4 of the outer container 1 (not shown), the inner container 2 fitted into the outer container 1 is inserted. It is also possible to protect the inner container 2 filled with the inner solution as a structure in which the contact surface due to the vibration of the inner peripheral wall of the body portion 4 is reduced and an unexpected impact applied from the outside is absorbed by the body portion 4 of the outer container 1. it can.

[0022]

The effects of the liquid refilling container of the present invention having the above-mentioned structure and action are as listed below. a. Since the inner container can be replaced without attaching or detaching the lid, there is no inconvenience of accidentally spilling the content liquid and contaminating the surroundings during the replacement work. b. The refillable container of the present invention has a structure in which the inner container is fitted and inserted into the outer container, the shoulder cover is fitted, and the rotary cylinder is rotated to assemble, and the reverse rotation is such that the fixing of each other is released. Therefore, the operability of assembling and refill replacement is very simple. c. Since the inner container and the inner wall of the body of the outer container are not in close contact with each other and have a large amount of voids, the inner container is protected from an impact from the outside, and the manufacturing process between the inner container and the outer container is prevented. Dimensional accuracy is eased. d. When assembling the rotating cylinder to the top plate of the shoulder cover, if the rotating cylinder is press-fitted into the center hole of the top plate from the back side, it is rotatably and irremovably fitted. It's easy.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a refill container according to the present invention.

FIG. 2 is an explanatory view of the shoulder cover seen from the back side.

FIG. 3 is a sectional view of the container of the present invention on the minor axis side.

FIG. 4 is a cross-sectional view of the container of the present invention on the major axis side.

FIG. 5 is a sectional view of a conventional example.

[Explanation of symbols]

1 Outer container. 2 Inner container. 3 Shoulder cover. 4 torso. 5
Aperture. 6, 6 recess. 1a mouth. 7 Shoulder. 8
Shoulder. 9 Lid. 10 neck. 11 plate-like protrusions. 12, 1
2 Locking piece. 13 Top plate. 14 central hole. 15 Rotating cylinder. 17 Flange. 18, 18 Protrusion. 19, 19
Engaging piece. 20 base end.

Claims (1)

[Claims] 1. A pair of recesses (6, 6) sandwiching the center on the inner side of the opening (5) of the body (4) having a bottomed elliptical cylinder.
6) comprises an outer container (1) in which a recess is provided; a bottle body (7) housed in the outer container (1), and a lid (9) is attached to a shoulder portion (8) of the bottle body (7). Fitting and standing neck (10)
A plate-like projection (11) is integrally provided around the lower outside of the plate, and a pair of locking pieces (12, 12) are integrally projected below the plate-like projection (11) with the center interposed. An inner container (2) provided; a top plate (13) fitted to the mouth (1a) of the outer container (1); an inner part rotatably fitted to the plate-like protrusion (11) And a pair of inward projecting pieces (18, 18) that sandwich the locking pieces (12, 12) from above and below in cooperation with the facing flange (17),
A pair of engagement pieces (19, 19) engaged with the recesses (6, 6) are protruded outward at the base end (20) and are rotated to the central hole (14) of the top plate (13). A refill container for liquid, comprising: a rotatable tube (15) movably fitted thereto.