JP4178530B2 - Pouring container with sliding lid - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention has a pump for pouring the content liquid, and slides the sliding lid that divides the content liquid storage portion and the outside closely to the content liquid storage portion side in accordance with the negative pressure generated by the content liquid pouring. The present invention relates to a pouring container with a sliding lid, in which the structure to be moved is applied to a container body having a rectangular tubular body.
[0002]
[Prior art]
The content liquid is forcibly poured out by the pump function unit assembled in the mouth of the container body, and the negative pressure generated in the container body according to the dispensing of the content liquid, the inside of the barrel body that is in the straight cylindrical shape of the container body, Japanese Laid-Open Patent Publication No. 62-78078 discloses a conventional dispensing container with a sliding lid that slides and moves a sliding lid that is closely divided into a content liquid storage portion and an open portion to the content liquid storage portion side. Are known.
[0003]
In this prior art, the barrel of the container body can be easily obtained a strong and reliable sealing, so it has a cylindrical shape without exception, and forms the bottom wall of the content liquid storage part. Therefore, a sliding lid that requires a sufficient self-shape retaining force is assembled with a sealing function part such as an O-ring on the outer peripheral surface of the main body part that is molded into a bottomed short cylinder with a relatively hard material. Configured.
[0004]
In this prior art, since the barrel portion of the container body is cylindrical, the tightening margin between the O-ring which is the sealing function portion and the inner peripheral surface of the barrel portion is uniform over the entire circumference. High sealing performance can be obtained.
[0005]
[Problems to be solved by the invention]
However, in this type of container, since the body of the container body is limited to a cylindrical shape, the appearance of the container tends to be monotonous and the appearance of the product is not interesting. It was.
[0006]
In this way, the barrel portion of the container body is limited to a cylindrical shape. If this barrel portion is a rectangular tube shape, the allowance between the O-ring which is a sealing function portion and the inner peripheral surface of the barrel portion is reduced. The portion facing the plate-like side wall portion and the portion facing the corner portion are not uniform, and therefore, the portion facing the corner portion is wrinkled and reliable sealing performance cannot be obtained. It is.
[0007]
Therefore, the present invention has been devised to solve the above-described problems in the prior art, and the sealing function portion of the sliding lid is entirely disposed on the inner peripheral surface of the cylindrical body of the container body. It is an object of the present invention to provide a tight sliding contact over the circumference, and to provide a good fun to the appearance of this type of container.
[0008]
[Means for Solving the Problems]
Among the present invention for solving the above technical problems, the means of the invention according to claim 1 is:
The mouth portion of the container body having a rectangular tube-shaped body portion which is formed into a curved plate shape in which each side wall portion is curved and protrudes outward, and the inner peripheral surface of each corner portion is rounded to form a smooth arc surface. Further, the present invention relates to a dispensing container in which a pump body for dispensing is assembled with an assembly cap, and a sliding lid that is displaced upwardly while closely sliding due to the negative pressure generated by the operation of the pump body is fitted in the barrel. Being a thing,
The sliding cover is provided with a peripheral cylinder piece having an outer diameter slightly smaller than the inner peripheral surface of the body portion via an outer flange-like flange piece at the outer peripheral end of the main plate piece, and the peripheral cylinder. An upper trumpet cylinder piece and a lower trumpet cylinder piece extending while expanding the diameter from the upper and lower ends of the piece to a diameter slightly larger than the inner peripheral surface of the body portion,
The extension length and thickness of the upper and lower trumpet cylinder pieces of the sliding lid are set so that the upper trumpet cylinder piece and the lower trumpet cylinder piece correspond to the plate-like side wall portion and the corner portion of the body portion of the container body. Set to a value that exhibits flexibility to absorb wrinkles of the part facing this corner due to uneven tightening margins,
It is in.
[0009]
A sliding lid fitted in the body of the container body so as to be able to slide tightly includes a liquid storage part having a mouth part with a pump assembled at the upper end, and an open part opened to the outside. And densely divide up and down.
[0010]
When the pump is pushed down and the content liquid is dispensed, negative pressure is generated in the content liquid storage part according to the volume of the dispensed content liquid, and the sliding lid is displaced upward until the negative pressure is almost eliminated. Let
[0011]
When a tightening margin is provided over the entire circumference between the inner peripheral surface of the body portion of the container body and the upper and lower trumpet cylinder pieces of the sliding lid, it faces the side wall portion of the body portion of the container body. A difference in tightening margin is generated between the portion and the portion facing the corner, thereby causing wrinkles to occur in the portion facing the corner.
[0012]
However, the upper and lower trumpet pieces are preliminarily set so that the extension length and thickness of the trumpet are flexible enough to absorb wrinkles to be generated. The portion facing the corner portion is securely and firmly brought into close sliding contact with the inner peripheral surface of the trunk portion.
[0013]
The upper trumpet and the lower trumpet are not compression elastic deformation, but mainly tilted elastic deformation with the base end as a fulcrum to achieve close sliding contact with the inner peripheral surface of the body portion, so that a large amount of elastic deformation is obtained. This makes it possible to absorb the wrinkles associated with uneven tightening margins without difficulty.
[0014]
Note that the degree of curvature of the corner portion of the inner peripheral surface of the body portion that has been chamfered in advance is such that the smaller the radius of curvature, the stronger and the greater the wrinkle is on the portions facing the corner portions of the upper and lower trumpet pieces. Therefore, even if both trumpet cylinders are molded so as to have sufficient flexibility, it is desirable to chamfer the corners of the inner peripheral surface of the trunk with a radius of curvature as large as possible. By making the portion into a curved plate shape that protrudes outwardly, the degree of curvature of the inner peripheral surface of the corner can be increased in appearance in accordance with the degree of curvature, and accordingly, the sliding of the sliding lid against the inner peripheral surface of the corner is increased accordingly. The contact can be made strong and stable.
[0015]
The invention according to claim 2 is the invention according to claim 1, wherein the sliding lid is formed as a relatively soft synthetic resin integrally molded product, and the inner peripheral surface of the corner portion of the trunk portion of the container body is slid. The curvature radius of the edge which opposes the corner | angular part of a trunk | drum of an upper trumpet cylinder piece and a lower trumpet cylinder piece of a lid was set to 4 mm or more.
[0016]
In the invention according to claim 2, the synthetic resin material for molding the sliding lid is maintained in a stable self-shape on the main body portion composed of the main plate piece, the flange piece and the peripheral cylinder piece of the sliding lid. Because it is necessary to have enough hardness to be able to demonstrate its ability, give the upper and lower trumpet pieces sufficient flexibility to make intimate contact with the inner peripheral surface of the corners of the trunk. Becomes difficult.
[0017]
Accordingly, the radius of curvature of the inner peripheral surface of the body portion and the edges of the upper and lower trumpet pieces facing the corner portion is set to 4 mm or more, and thereby the upper trumpet with respect to the inner peripheral surface of the corner portion. The end edges of the cylinder piece and the lower trumpet cylinder piece are elastically deformed and brought into close contact with each other without causing wrinkling, thereby achieving a close sliding contact assembly of the sliding lid to the body portion.
[0018]
In addition, since the sliding lid is an integrally molded product made of a synthetic resin material, its manufacture is easy and the cost is low.
[0019]
A third aspect of the invention is the same as that of the first aspect of the invention, in which the sliding lid is slightly smaller than the inner peripheral surface of the body portion of the container body through the outer flange-shaped flange piece at the outer peripheral end of the main plate piece. From the upper and lower ends of a rigid synthetic resin main body with a continuous outer peripheral surface of the peripheral cylindrical piece and a thin adhesive cylindrical piece that covers and covers the entire outer peripheral surface of the peripheral cylindrical piece. Extending while expanding to a slightly larger diameter than the upper and lower trumpet cylinder pieces, which are slightly thicker. And a molded soft elastic material sealing body portion.
[0020]
In the invention according to claim 3, since the sealing body portion of the sliding lid is injection-molded using the peripheral cylindrical piece of the main body portion of the sliding lid as an insert material, the adhesive cylindrical piece is attached to the main body portion. To firmly bond and fix.
[0021]
Further, it is possible to give a stronger and more stable self-shape holding force to the main body portion of the sliding lid, and it is possible to give more sufficient elasticity and flexibility to the sealing function portion.
[0022]
According to a fourth aspect of the present invention, in the third aspect of the invention, the continuous end side end surfaces of the upper trumpet cylinder piece and the lower trumpet cylinder piece of the sliding lid seal body portion are used as the peripheral cylinder of the main body portion of the sliding lid. This is in addition to being brought into contact with the upper end surface and lower end surface of the piece.
[0023]
In the invention according to claim 4, the upper trumpet cylinder piece and the lower trumpet cylinder piece of the seal body portion are arranged in a state in which the outer portion is continuously arranged with the adhesive cylinder piece bonded and fixed to the main body portion. Since the inner part of the cylinder is in contact with the upper and lower end surfaces of the peripheral cylinder piece, a large amount of elastic deformation can be obtained by tilting elastic deformation, so that the abutment exerts a large elasticity, and the extended end Can be elastically brought into contact with the inner peripheral surface of the body portion.
[0024]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
1 to 3 show a first embodiment, and a dispensing container with a sliding lid according to the present invention has an inner bowl-like shape in which a step portion is provided on the outer periphery at the upper end of a rectangular tubular body 2. A container body 1 having a cylindrical mouth portion standing up through a shoulder portion, a pump body 6 screwed and fastened to the mouth portion of the container body 1 by an assembly cap 5, and the pump body 6 A cover cap 7 that covers the whole and is attached to and detached from the shoulder portion of the container body 1 and is fitted in the body portion 2 so as to be slidable tightly. The sliding lid 8 is divided into upper and lower parts, and the bottom lid 19 closes the lower end opening part of the body part 2.
[0025]
The container main body 1 is injection-molded with a hard synthetic resin, for example, polypropylene resin, and the trunk portion 2 formed into a straight square tube shape is a curved plate in which each plate-like side wall portion 3 is curved outward with a large radius of curvature. The outer peripheral surface of each corner 4 is formed with almost no chamfering, whereas the inner peripheral surface of each corner 4 is chamfered with a radius of curvature (4 mm or more) as large as possible. (Refer to FIG. 3) and a smooth arc surface is obtained.
[0026]
The pump body 6 sucks and dispenses the content liquid by the lifting and lowering operation of the nozzle head, and the content liquid suction port is located at the upper end portion (see FIG. 1) of the body portion 2 of the container body 1. Yes.
[0027]
The sliding lid 8 integrally formed of a relatively soft synthetic resin such as a low-density polyethylene resin has a bottomed cylindrical central depressed cylindrical piece 13 with a leg cylindrical piece 13a suspended on the lower surface, and a trunk portion. 2 The outer diameter dimension slightly smaller than the inner peripheral surface of the body part 2 from the lower end of the peripheral wall of the rectangular plate-shaped main plate 12 having the same rectangular shape as the inner peripheral surface through the outer flange-shaped flange piece 11. A plurality of (in the illustrated embodiment) are provided in a circumferential recess formed by the central depressed cylindrical piece 13, the main plate piece 12, the flange piece 11, and the circumferential cylindrical piece 10. 8) (see FIG. 3), the reinforcing rib pieces 14 are provided radially, and the upper trumpet cylinder piece 17 and the lower trumpet cylinder piece 18 formed from the upper and lower ends of the peripheral cylinder piece 10 are extended to the end. Are expanded until they have an outer diameter slightly larger than the inner peripheral surface of the body portion 2, and are respectively extended and required. Forming a sealing function unit to exhibit the sex and flexibility.
[0028]
The respective curvature radii of the inner peripheral surface of the corner portion 4 of the body portion 2 of the container body 1 and the edge portions of the upper trumpet cylinder piece 17 and the lower trumpet cylinder piece 18 of the sliding lid 8 facing the corner section 4 are as follows. Each of them is set to 4 mm or more, so that the wrinkles of the portions of the trumpet cylinder pieces 17 and 18 facing the corner 4 are more reliably absorbed.
[0029]
The reinforcing rib piece 14 prevents the shape of the main plate piece 12 and the peripheral cylindrical piece 10 from being deformed due to the action of an external force. Makes the functional part exhibit a stable and strong sealing action.
[0030]
The bottom lid 19 that closes the lower end of the body portion 2 is fitted in a short rectangular tube shape that is fitted and locked to the lower end opening of the body portion 2 at the upper peripheral edge of the main body plate 20 having the same planar shape as the body portion 2. A cylindrical piece 22 is erected, and a central cylindrical piece 23 that sets the lowering limit of the sliding lid 8 is erected from the center of the upper surface of the main body plate 20, and a vent hole 21 is opened at an appropriate location on the main body plate 20. Configured.
[0031]
The bottom lid 19 stably forms the seat of the container, and closes the space formed under the sliding lid 8 in the body portion 2 to prevent dust from entering the space, Keep the container in good condition.
[0032]
4 to 6 show a second embodiment, in which the sliding lid 8 has a main body 9 having a strong and stable self-shape holding force, and a seal body that exhibits sufficient elasticity and flexibility. 15.
[0033]
The body portion 9 injection-molded with a hard synthetic resin such as polypropylene resin is provided with a bottomed cylindrical central depressed cylindrical piece 13 at the center, and has a rectangular tube shape with a square shape that is the same square as the inner peripheral surface of the body portion 2. From the lower end of the peripheral wall of the main plate 12, a rectangular cylindrical peripheral cylinder piece 10 having an outer diameter slightly smaller than the inner peripheral surface of the body portion 2 is continuously provided in a hanging manner via an outer flange-shaped flange piece 11. A plurality of reinforcing rib pieces 14 (see FIG. 6 in the case of the illustrated embodiment) are radially provided in a circumferential recess formed by the central depressed cylindrical piece 13, the main plate piece 12, the flange piece 11, and the circumferential cylindrical piece 10. It is provided and configured.
[0034]
A sealing body portion 15 made of a soft synthetic resin material such as an elastomer or a soft elastic material such as a synthetic rubber is injection-molded using the entire outer peripheral surface of the peripheral cylindrical piece 10 of the main body 9 as an insert material. From the upper and lower ends of the thin cylindrical adhesive tube piece 16 that covers and fixes the entire surface, the upper trumpet tube piece 17 and the lower trumpet tube piece 18 that are slightly thicker than the inner peripheral surface of the body portion 2. The end surface of the peripheral cylinder piece 10 is extended while extending to a slightly larger outer diameter, and the end surface formed at the continuous end of the upper trumpet cylinder piece 17 and the lower trumpet cylinder piece 18 with the adhesive cylinder piece 16 It is in contact with the upper and lower end surfaces.
[0035]
【The invention's effect】
Since the present invention has the above-described configuration, the following effects can be obtained.
In the invention of claim 1, due to the non-uniform tightening allowance between both the trumpet cylinder pieces of the sliding lid and the plate-like side wall part and the corner part of the body part of the container body, Even if the wrinkle is about to occur in the portion facing the corner of the trunk, the trumpet absorbs this wrinkle with its flexibility, and thereby the tight sliding contact of the trumpet with the corner of the trunk The plate-like side wall portion can be secured as firmly and reliably as the plate-like side wall portion, and a seal over the entire circumference between the body portion and the sliding lid can be obtained with certainty.
[0036]
Thus, since a reliable seal between the rectangular tube-shaped body and the sliding lid can be obtained, a container having a rectangular tube-shaped body can be used as a product, and thus this type of container can be obtained. It is possible to give interesting changes to the appearance.
[0037]
In the invention according to claim 2, even if the sliding lid is made of a synthetic resin, the sliding lid is stably and securely in contact with the inner peripheral surface of the corner of the body portion of the container body. Thus, a sliding lid that can be used can be manufactured easily and at low cost.
[0038]
In the invention of claim 3, a stronger and more stable self-shape holding force can be applied to the main body portion of the sliding lid, and more sufficient elasticity and flexibility can be provided to the sealing function portion. Can be granted.
[0039]
In the invention according to claim 4, the upper trumpet cylinder piece and the lower trumpet cylinder piece of the seal body portion of the sliding lid that is in close sliding contact with the inner circumferential surface of the body portion of the container main body are arranged on the outer circumference side of the base end. The upper and lower trumpet cylinders are integrally connected to the adhesive cylinder piece fixed in contact with the main body part of the sliding lid and the base end surfaces of the remaining parts are in contact with the upper and lower end surfaces of the peripheral cylinder piece of the main body part. Elastic deformation due to elastic contact with the body part of the piece not only bends but also compressively deforms the inner part, which can provide strong elasticity despite sufficient flexibility. Therefore, a more reliable sealing property can be obtained.
[Brief description of the drawings]
FIG. 1 is an overall side view of a first embodiment of the present invention, with a main portion cut in half.
FIG. 2 is an enlarged irregular vertical cross-sectional view of the sliding lid of the embodiment shown in FIG. 1, extending from the side center to the corner.
3 is an overall enlarged bottom view showing the assembled state of the sliding lid of the embodiment shown in FIG. 1. FIG.
FIG. 4 is an overall side view of a second embodiment of the present invention, with the main part cut in half.
5 is an enlarged irregular longitudinal sectional view from the center of the side part to the corner part of the sliding lid of the embodiment shown in FIG. 4; FIG.
6 is an overall enlarged bottom view showing the assembled state of the sliding lid of the embodiment shown in FIG. 4. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1; Container body 2; Body part 3; Side wall part 4; Corner part 5; Assembly cap 6; Pump body 7; Cover cap 8; Sliding lid 9; Main plate piece 13; Central depressed cylinder piece 13a; Leg cylinder piece 14; Reinforcement rib piece 15; Sealing body part 16; Adhesive cylinder piece 17; Upper trumpet cylinder piece 18; Lower trumpet cylinder piece 19; Vent hole 22 fitting tube piece 23 central tube piece

Claims (4)

Each side wall portion (3) is molded into a curved plate shape that curves outwardly, and a rectangular tube-shaped body portion that rounds the inner peripheral surface of each corner portion (4) to form a smooth arc surface ( 2) The pump body (6) for pouring is assembled to the mouth of the container body (1) having the assembly cap (5), and the pump body (6) is inserted into the body (2). In a pouring container fitted with a sliding lid (8) that moves up and down while closely sliding due to negative pressure generated during operation, the sliding lid (8) is placed on the outer peripheral end of the main plate piece (12). A peripheral cylinder piece (10) having an outer diameter slightly smaller than the inner peripheral surface of the body part (2) is provided continuously through an outer flange-shaped flange piece (11), and the peripheral cylinder piece (10 ) And an upper trumpet cylinder piece (17) and a lower trumpet cylinder piece (18) that extend while expanding to a diameter that is slightly larger than the inner circumferential surface of the body part (2). And the upper and lower trumpet pieces (17) and (18) are extended. The length and thickness of the upper trumpet cylinder piece (17) and the lower trumpet cylinder piece (18) are unevenly tightened with respect to the side wall portion (3) and the corner portion (4) of the trunk portion (2). An extraction container with a sliding lid that is set to a value that exhibits the flexibility to absorb wrinkles in the portion facing the corner (4). The sliding lid (8) is configured as a relatively soft synthetic resin integrally molded product, and the corner (4) inner peripheral surface of the body (2) of the container body (1) and the sliding lid ( The sliding lid according to claim 1, wherein the curvature radius of the edge of the upper trumpet (17) and the lower trumpet (18) facing the corner (4) is set to 4 mm or more. Dispensing container. The sliding lid (8) has an outer diameter slightly smaller than the inner peripheral surface of the body (2) through an outer flange-shaped flange piece (11) at the outer peripheral end of the main plate piece (12). From the upper and lower ends of the rigid synthetic resin main body (9) continuously provided with the peripheral cylinder piece (10) and the thin adhesive cylinder piece (16) that covers and adheres to the entire outer peripheral surface of the peripheral cylinder piece (10). The upper trumpet piece (17) and the lower trumpet cylinder piece (18), which are extended to a diameter slightly larger than the inner circumferential surface of the body (2) and which are slightly thicker, are connected. 2. A pouring container with a sliding lid according to claim 1, further comprising a sealing body portion (15) made of a soft elastic material, which is configured by being formed by injection molding using the peripheral cylindrical piece (10) as an insert material. The sliding cover-attached note according to claim 3, wherein the end surfaces of the upper and lower trumpet pieces (17) and (18) are in contact with the upper end surface and the lower end surface of the peripheral tube piece (10). Out container.

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