JP2009022883A - Double delivery device - Google Patents

Abstract

The present invention provides a dual-type dispenser having a high bus barrier property in which measures for preventing blackening of contents are taken.
SOLUTION: In a dual-type dispenser in which two containers each filled with different types of contents are arranged side by side, at least one of pipes 7 and 8 surrounds a feeding path and prevents gas permeation. A protective cap 16 is provided, a cover cap 11 is formed to cover the push button portion B of the piston 9b to form a gas barrier layer, and a molded body using a material having a high gas barrier property is applied to the cylinder 9a of the pump.
[Selection] Figure 2

Description

  The present invention relates to a dual-type dispenser suitable for discharging different contents of different types filled in two containers simultaneously from each container by pressing with a button, and mixing immediately before use, It is intended to effectively avoid discoloration of the contents due to permeation of gas (especially oxygen).

  In recent years, in hair dyes, facial cleansing foams, treatments, etc., products that mix and use two types of contents with different compositions just before use have been distributed.

  Such products are usually sold as a set of each container filled with its contents, and when used, the contents are placed in a predetermined proportion from each container. The complicated operation | work which pours out separately and mixed was needed.

  As a solution to the conventional problems as described above, a discharge device that simultaneously discharges contents from each container by connecting the suction port of the pump device to the mouth of each container and driving the pump device by hand. The device is known (for example, see Patent Document 1). However, in this type of discharge device that drives the pump device by hand, especially in a double-type discharge device, the size of the device itself is inevitably increased. There was a case where the sex decreased.

For this purpose, the pump is provided with a cylinder with concentric double peripheral walls that define two space areas, and a piston that is simultaneously slid by an operating lever is incorporated into the space area of this cylinder to realize simultaneous discharge of contents. At the same time, proposals have been made to reduce the size of the discharge device and improve the operability (see, for example, Patent Document 2). However, in recent years, depending on the contents filled in the container, the components of the discharge device may be changed. The occurrence of discoloration due to the effect of permeated gas (especially oxygen) has also emerged as a new problem, and improvements in this regard have been sought.
JP 2005-126144 A JP 2007-137465 JP

  An object of the present invention is to propose a dual-type discharge device having an improved gas barrier property as a measure for preventing discoloration of contents passing through the discharge device.

The present invention comprises a holder for detachably connecting and holding two containers filled with different types of contents in a side-by-side arrangement, and the contents in the containers connected to the openings of the holders via suction valves, respectively. A pipe that forms a feed passage through which an object passes, a pump that is connected to the pipe, sucks, pressurizes, and pumps the contents in the container, and is disposed on the outlet side of the pipe. A dual-type dispenser having a discharge valve and a nozzle that individually discharges the contents passed through the discharge valve toward the outside,
The pump has an intake / exhaust port individually connected to the feeding passage of each tubular body, and a cylinder having concentric double peripheral walls that define a space region therein, and a reciprocating movement in the space region of the cylinder. It has two possible sliding parts, and the rear end area exposed from the open end of the cylinder is used as a push button part, and the sliding part is slid by the pushing operation to suck and add the contents in each container. A pressure-feeding piston toward the nozzle, and at least one of the pipes is provided with a protective layer that surrounds the feeding path and prevents gas permeation, and covers the push button portion of the piston to provide a gas barrier. A dual-type dispenser characterized in that a cover cap for forming a layer is provided, and the cylinder of the pump is made of a molded body using a material having a high gas barrier property.

  A protective layer that prevents the permeation of gas is provided on the tube body through which the contents pass, and the pump cylinder itself is made of a material having a high gas barrier property, and the push button portion excluding the sliding portion of the piston is provided with a gas barrier layer. By covering with the cover cap to be formed, gas permeation into the discharger is suppressed.

Hereinafter, the present invention will be described more specifically with reference to the drawings.
1 to 4 are views showing a state in which a double-type dispenser according to the present invention is mounted on a container, FIG. 1 is an oblique view of the appearance, FIG. 2 is a view showing a side view in section, and FIG. FIG. 4 is a diagram showing a cross section taken along the line AA.

  In the figure, 1 and 2 are tube-type containers filled with different contents, respectively, and 3 and 4 are holders that hold the containers 1 and 2 in a side-by-side posture at their mouths (shown when engaged with screws) There may be engaged by undercut). The holders 3 and 4 are provided with openings 3a and 4a communicating with the mouths 1a and 2a of the containers 1 and 2 (see FIGS. 2 and 3). Protrusions 3b and 4b for positioning the containers 1 and 2 with respect to the holders 3 and 4 are formed by fitting over the inclined walls to the recesses 1b and 2b provided in 2a (see FIG. 2).

  Reference numerals 5 and 6 denote suction valves (check valves) disposed in the openings 3a and 4a of the holders 3 and 4, and reference numerals 7 and 8 denote pipes connected to the holders 3 and 4 through the suction valves 5 and 6, respectively.

  These pipe bodies 7 and 8 form a feeding path for the contents. Of these, the pipe body 7 is detachably disposed at the rear end of the straight pipe 7a and the straight pipe 7a. And short holders 7b and 7c (short pipe 7c is connected to holder 3). As for the tube 8, an annular tube 8 a surrounding the pump and short tubes 8 b and 8 c provided integrally on the entry side and the exit side (the short tube 8 b is connected to the holder 4). Become.

Reference numeral 9 denotes a pump that sucks, pressurizes, and pumps the contents in the container bodies 1 and 2 linked to the tubes 7 and 8. This pump 9 has intake / exhaust ports S _{1 to} S ₃ individually connected to the pipe bodies 7 and 8, and concentric double peripheral walls t ₁ that define two inner and outer space regions P ₁ and P ₂ inside thereof. , T ₂ , a piston 9 b disposed in the cylinder 9 a, and a piston retainer 9 c that is retained by an undercut fit at the opening end 9 a ′ of the cylinder 9 a.

The entire cylinder 9a is formed of a molded body using a material (resin) having a high gas barrier property. The piston 9b is composed of an outer cylindrical body 9b ₁ whose one end is opened, and an inner cylindrical body 9b ₂ fixed to the inner side of the outer cylindrical body 9b ₁ by means such as an undercut (outer cylindrical body 9b _Although a case where a concave portion is provided inside ₁ and a convex portion fitted to the concave portion is provided at the rear end portion of the inner cylindrical body 9b ₂ and is integrally connected is illustrated, an integrally molded one may be applied. ), Sliding portions f ₁ and f ₂ that are reciprocally movable in the space regions P ₁ and P ₂ of the cylinder 9a are formed at the tips of the outer cylinder 9b ₁ and the inner cylinder 9b ₂ , respectively. The rear end region exposed from the open end 9a ′ is the push button portion B.

  Further, 10 is a spring that elastically supports the piston 9b in the cylinder 9a, and 11 is a cover cap that covers the push button portion B (covers around the piston 9b) (see FIG. 2). The cover cap 11 moves together with the push button portion B when the push button portion B is pushed in, and the cover cap 11 itself is made of a material that prevents gas permeation (in the cover cap 11). Forming a gas barrier layer).

  Further, 12 and 13 are discharge valves (check valves) arranged on the outlet side of the tubular bodies 7 and 8, and 14 is a nozzle for discharging the contents having passed through the discharge valves 12 and 13 to the outside.

The nozzle 14 includes a base 14a that forms discharge spaces m ₁ and m ₂ on the outlet sides of the discharge valves 12 and 13, respectively, a tube body 14b connected to the base 14a, and an outer periphery of the tube body 14b via a hinge h. And a lid 14c that is held so as to be swingable and opens and closes the distal end opening of the tube 14b.

Reference numerals 15a and 15b denote partition plates provided inside the base 14a and the tube body 14b, respectively. These partition plates 15a and 15b divide the inside of the nozzle 14 into two along the axial center, and form passages r ₁ and r ₂ through which the contents discharged from the containers 1 and 2 are individually passed.

  Further, 16 is a protective layer attached to the outer periphery of the straight tube 7a of the tube body 7 (see FIG. 2). This protective layer 16 is shown by way of example in which a film made of a material that blocks the permeation of gas is integrally formed on the outer surface of the straight tube 7a by insert molding, and this protective layer 16 forms a gas barrier layer.

The dual-type discharger having the above-described configuration is composed of concentric double peripheral walls t ₁ and t _{2 in} which a cylinder 9a constituting the pump 9 forms two space regions P ₁ and P ₂ therein. The pipes 7 and 8 are directly connected to the cylinder 9a, and the piston 9b is driven by the pushing operation of the push button portion B directly connected thereto, so that the structure of the discharge device is simplified and the size is reduced. It is possible to easily discharge the contents while holding the container with one hand.

  The cylinder 9a is made of a material having a high gas barrier property. A cover cap 11 that forms a gas barrier layer is formed outside the push button portion B, and a gas barrier layer is formed on the straight pipe 7a of the tube body 7. Since the protective layers 16 are disposed, the gas permeation into the discharge device is extremely small.

  When a container filled with contents that easily cause discoloration is connected to the holder 3, it is preferable to apply a molded body using a material (resin) having a high gas barrier property to the short tubes 7b and 7c.

  In the dispenser according to the present invention, all the members other than the spring 10 can be formed of a synthetic resin. For example, when the dispenser is arranged separately on the push button portion B like the cover cap 11 Alternatively, the cover cap 11 can be a metal member such as aluminum.

  As the cover cap 11, a cylindrical body having an open end as shown in FIG. 5 (a) can be used, and the open end portion 11a has a retaining flange g as shown in FIG. 5 (b). It is also possible to apply such a thing as shown in FIG.5 (c) which has the cyclic | annular convex part i in the outer side wall of a trunk | drum. Further, the cover cap 11 may be integrally provided on the outer surface of the push button portion B by two-color molding (molding method in which members of different materials are integrally molded) or insert molding, and is generally used. A coating layer having a high barrier property may be formed on the surface (at least one of the inside and outside) of the member made of the material, and this is not a limitation. As the gas barrier layer, either a single layer type or a laminated type is selected.

  In order to discharge the contents in the containers 1 and 2 using the dispenser having such a configuration, the pushing operation of the push button portion B (pushing together with the cover cap 11) may be repeated a plurality of times. When the push button part B is pushed, the piston 9b is slid against the repulsive force of the spring 10, and when the dead end is removed, the push button part B is initialized together with the piston 9b by the restoring force of the spring 10. At this time, since the inside of the cylinder 9a becomes negative pressure, the contents in the containers 1 and 2 are sucked into the pipes 7 and 8 and the cylinder 9a through the suction valves 5 and 6.

When the piston 9b is slid again by the pushing operation of the push button portion B, the contents existing in the pipe bodies 7 and 8 and the cylinder 9a are pressurized and sent to the nozzle 14 through the discharge valves 12 and 13. The pumped contents are discharged from the tip of the nozzle 14 to the outside through the passages r ₁ and r ₂ .

  The cover cap 11 that forms the gas barrier layer, the protective layer 16, and the cylinder 9a of the pump 9 are composed of ethylene-vinyl alcohol copolymer, nylon resin (for example, metaxylylene group-containing polyamide resin or amorphous polyester resin ( For example, it is possible to use terephthalic acid, isophthalic acid, ethylene glycol, other copolymers of diol components, ethylene naphthalate-ethylene terephthalate copolymer resin, etc.) However, a laminated structure of commonly used materials and the above materials may be used, and a member made of a commonly used material is used as it is, and a gas barrier is formed on the member by vacuum deposition or sputtering. A coating layer having a property may be formed. So that over is suppressed.

Figure 6 is a protective layer 16, detachable from the straight tube 7a (applying what elastically deformable.) And is constituted by cylindrical body that forms a C-shaped cross section, the outer cylinder 9b ₁ piston 9b According to the present invention, the inner cylindrical body 9b ₂ is integrally formed, and the rod-like portion 11a of the cover cap 11 is inserted into the through hole e of the cylindrical body 17 provided inside the inner cylindrical body 9b ₂ so as to connect them. It is the figure which showed other embodiment.

  The dispenser having such a configuration eliminates the need to attach the protective layer 16 when the container 1 is filled with contents that are unlikely to change color, thereby reducing the number of parts and simplifying the assembly process. There are advantages that can be made.

  The cover cap 11 shown in FIG. 6 is disassembled as shown in FIG. 7, and the cover cap 11 and the piston 9b are individually manufactured and combined to achieve integration. The cover cap 11 in which both are integrated by applying insert molding can also be formed.

FIG. 8 is a view showing still another embodiment according to the present invention in which a protective layer 16 is provided on the inner wall surface of the straight pipe 7a by insert molding, and FIG. 9 has a high gas barrier property by two-color molding or insert molding. an example in which by molding a straight tube 7a to the intake port s ₁ of the pump 9 by the material.

  Also in the ejector having the structure shown in FIGS. 8 and 9, the gas permeation can be made as small as possible, and problems such as discoloration of the contents can be effectively avoided. In particular, the dispenser of the example shown in FIG. 9 is advantageous in reducing the number of parts because the straight pipe 7a is a gas barrier layer and thus the protective layer 16 is not required.

  We can provide a compact double dispenser with measures to prevent discoloration of the contents.

1 is an external perspective view showing an embodiment of a dual-type dispenser according to the present invention. FIG. 2 is a cross-sectional view of a side surface of the discharge device shown in FIG. FIG. 2 is a cross-sectional view of the rear surface of the discharger shown in FIG. FIG. 2 is a view showing an AA cross section of the discharger shown in FIG. (A)-(c) is the figure which showed the external appearance of the cap. FIG. 6 is a view showing another embodiment of a dual-type dispenser according to the present invention. FIG. 7 is a view showing a push button portion and a cover cap of the dual-type dispenser shown in FIG. FIG. 6 is a view showing another embodiment of a dual-type dispenser according to the present invention. FIG. 6 is a view showing still another embodiment of the dual-type dispenser according to the present invention.

Explanation of symbols

1 container
1a mouth
1b Recess
2 containers
2a mouth
2b recess
3 Holder
3a opening
3b protrusion
4 Holder
4a opening
4b protrusion
5 Suction valve
6 Suction valve
7 tube
7a straight tube
7b short tube
7c short tube
8 tube
8a Annular pipe
8b short tube
8c short tube
9 Pump
9a cylinder
9b piston
9c Piston retainer
10 Spring
11 Cover cap
12 Discharge valve
13 Discharge valve
14 nozzles
14a base
14b cylinder
14c lid
15a Partition plate
15b Partition plate
16 Protective layer
_{f 1,} f ₂ sliding parts
B Push button
S ₁ ~S ₃ suction and discharge opening
t ₁ , t ₂ wall
r ₁ , r ₂ passage
h Hinge

Claims (1)

Two containers filled with different types of contents are arranged side by side in a row, and are connected to and held in the mouth by releasably connected to the openings of these holders via suction valves, respectively. A pipe that forms a feed passage to be passed through, a pump that is connected to the pipe, sucks, pressurizes, and pumps the contents in the container, and discharges that are arranged on the outlet side of the pipe. A duplex dispenser having a valve and a nozzle that individually discharges the contents passed through the discharge valve toward the outside,
The pump has an intake / exhaust port individually connected to the feeding passage of each tubular body, and a cylinder having concentric double peripheral walls that define a space region therein, and a reciprocating movement in the space region of the cylinder. It has two possible sliding parts, and the rear end area exposed from the open end of the cylinder is used as a push button part, and the sliding part is slid by the pushing operation to suck and add the contents in each container. And a piston that pumps toward the nozzle,
At least one of the pipes is provided with a protective layer that surrounds the feeding path and prevents gas permeation,
A cover cap that covers the push button portion of the piston to form a gas barrier layer is provided,
The double cylinder type discharge device, wherein the pump cylinder is made of a molded body using a material having a high gas barrier property.

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