JP2006206097A - Position setting container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a position setting container capable of decreasing an upward-downward size of a cap member, simplifying an assembly of the cap body and improving assembly precision. <P>SOLUTION: This position setting container comprises a packing 14 arranged inside a top surface of a cap body 3 engaged with a container body 2 of which thread engaging and stop position is set in its position, and a resilient member 15 arranged at the packing so as to seal the opening of the container body. The packing is directly fixed to the cap member. The packing and elastic body are integrally formed to each other through a double molding operation and the elastic body is provided with an engagement part 16 engaged in such a way that it cannot be removed from the packing through flowing-in and solidifying of the packing material in fluidity when the double molding is carried out. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a positioning container capable of reducing the size of a cap body in the vertical direction and simplifying assembly of the cap body and improving accuracy.

  Conventionally, a positioning mechanism capable of setting the screwing stop position of the cap body with respect to the container body when the container body is sealed, out of the containers sealed with the cap body screwed into the container body. Positioning containers with the following are known. Among them, for example, those disclosed in Patent Documents 1 and 2 are known as techniques related to a positioning container provided with a packing inside the top surface of the cap body.

  Patent Document 1 discloses an engagement structure for a cap body of a positioning container, and a diaphragm-like structure is formed on an inner side of the top surface of the cap body that is fitted into an opening of a container body via an O-ring. A packing is disposed, and a peripheral edge portion of the packing is locked to an annular protrusion formed on the inner periphery of the cap body. An annular seal projection that abuts the upper end of the opening of the container body is formed on the peripheral edge of the lower surface of the packing. When the cap body is closed, the sealing projection of the packing has an even pressure contact force due to the cushioning action of the O-ring. The top of the is closed.

Patent Document 2 discloses a different-material sorting cap for a positioning container. By dipping the cap in water at the time of disposal, the interior frame and the exterior frame constituting the cap can be separated from each other. The elevating member corresponding to the packing has a shape in which a disk part is integrally formed at the lower end of the central shaft part, and a bulging part for closing the outlet of the container body is formed on the lower surface of the disk part. The seal ring, which is a cushion member, is composed of a central O-ring portion and a plurality of radial leaf spring portions formed on the peripheral portion thereof.
Japanese Patent Laid-Open No. 10-203547 JP 2000-153869 A

  By the way, in any of the above prior arts, since the packing is separated from the inside of the top surface of the cap body by the elastic action of the cushion member when the container body is not sealed, the top and bottom of the top surface portion of the cap body including the packing portion are arranged. The directional dimension was inevitably large. As a result, there has been a problem that the degree of freedom in design design and decorative design is reduced.

  In any of the above prior arts, since the packing and the cushion portion are formed of separate and independent members, it is necessary to assemble both members individually when the cap body is assembled. As a result, it is time consuming and may cause a reduction in dimensional accuracy during assembly (this may cause a reduction in airtightness).

  The present invention was devised in view of the above-described conventional problems, and provides a positioning container capable of reducing the size of the cap body in the vertical direction and simplifying the assembly and improving the accuracy of the cap body. For the purpose.

  The positioning container according to the present invention includes a packing provided inside the top surface of a cap body that is screwed into a container body at a screwing stop position, and the container is provided with the packing. A positioning container having an elastic body for sealing an opening of a main body, wherein the packing is directly fixed to the cap body, and the packing and the elastic body are integrated with each other by double molding. In addition, the elastic body is provided with a locking portion that locks the packing material in a non-detachable manner when the packing material in a fluid state flows and solidifies during double molding. .

  In addition, a gap is provided between the packing and the cap body, and the elastic body has a cushion portion that protrudes upward in the gap and is pressed against the inner surface of the cap body during positioning. And

  In the positioning container according to the present invention, it is possible to reduce the size of the cap body in the vertical direction, simplify the assembly of the cap body, and improve the accuracy.

  Hereinafter, preferred embodiments of a positioning container according to the present invention will be described in detail with reference to the accompanying drawings. In the first embodiment, as shown in FIGS. 1 to 3, as a positioning container 1, a container body 2 made of glass or synthetic resin and a container body 2 are screwed to seal the container body 2. A cream container made of a synthetic resin cap body 3 is illustrated.

  As shown in FIG. 1, the container body 2 includes a bottomed hollow cylindrical body 4 having a planar outer contour formed in a substantially square shape and containing contents, and on the body 4, A hollow cylindrical neck portion 6 whose upper end is opened to take out the contents through the shoulder portion 5 is formed to project upward, and this neck portion 6 forms a part of the outer peripheral wall of the container body 2. ing. On the other hand, the cap body 3 is formed in a substantially square shape whose planar outer contour matches the body portion 4, and a concave portion 7 is formed in the cap body 3 so that the cap body 3 can be attached to the cylindrical neck portion 6. For this purpose, a circular inner peripheral wall 8 is formed with an inner diameter that separates a slight gap S from the neck 6. Further, the cap body 3 is formed with a lip portion 9 having an inner diameter larger than the inner diameter R1 of the inner peripheral wall 8 at a lower end portion that comes into contact with the shoulder portion 5 when the container body 2 is sealed.

  A single convex thread 10 is formed around the neck 6. The outer surface of the convex thread 10 has an outer diameter smaller than the inner diameter of the rim 9 so that the cap body 3 can be attached to the neck 6, and the convex thread 10 has a dimension of the gap S. It is formed by protruding outward from the neck 6 with a larger dimension. That is, the convex thread 10 is formed as a thread having an outer diameter R2 that is larger than the inner diameter R1 of the inner peripheral wall 8. On the other hand, this also wraps around the inner peripheral wall 8 of the cap body 3 to form a single concave thread 11 that is longer than the convex thread 10 and screwed into the convex thread 10. The concave thread 11 is formed as a thread having a “valley diameter R3” corresponding to the convex thread 10 having an outer diameter R2 larger than the inner diameter R1 of the inner peripheral wall 8 by recessing the inner peripheral wall 8. The one end reaches the lip 9 and communicates with the lip 9. And the cap body 3 can be screwed into the neck part 6 by covering the cap body 3 on the neck part 6 from the mouth edge part 9 side and screwing the concave thread 11 to the convex thread 10, thereby the container body. 2 can be sealed.

  The following positioning mechanism is provided between the cap body 3 and the container body 2 in order to stop the screwing of the cap body 3 at a position that matches the outer contour of the container body 2. That is, the container body 2 protrudes upward from the corners extending from the shoulder portion 5 to the neck portion 6 directly below the lower end portion of the convex thread 10 and on the opposite side around the neck portion 6. A stop projection 12 is formed. On the other hand, the cap body 3 is formed with a pair of abutment protrusions 13 in the mouth edge portion 9 so as to protrude toward the recess 7 at positions corresponding to the pair of stop protrusions 12. In the illustrated example, the outer surface of each stop projection 12 has an outer diameter larger than the “valley diameter R3”, while the inner surface of each contact projection 13 is “valley diameter R3”. Have approximately the same inner diameter. Therefore, as shown in FIG. 2, when the cap body 3 is screwed into the neck portion 6 of the container body 2 to the end, the contact protrusions 13 of the cap body 3 abut against the stop protrusions 12 of the neck portion 6 and are locked. Then, further screwing movement of the cap body 3 is restrained and positioned.

  On the inner side of the top surface of the cap body 3, that is, on the surface of the recess 7, a circular thin plate-like packing 14 that covers substantially the entire surface is provided. Further, an elastic body 15 is provided on the lower surface side of the packing 14 to be pressed and sealed while being elastically deformed to the neck upper end 6a which is an opening of the container body 2 at the time of positioning. The packing 14 is formed of a synthetic resin material such as polypropylene, for example, and is directly fixed to the surface of the recess 7 of the cap body 3 by means such as ultrasonic bonding.

  The elastic body 15 is formed of, for example, silicon rubber or elastomer, and is integrally formed with the packing 14 by double molding. Duplex molding is a technology that allows two different materials to be joined together in the molding process to allow different material properties to coexist in a single molded product. And cost reduction can be achieved.

  The packing 14 is fixed to the inside of the top surface of the cap body 3 at a central portion concentric with the packing 14 (hereinafter referred to as packing central portion 14a), and an annular packing peripheral portion 14b excluding the packing central portion 14a is formed at the packing center. The thickness dimension is smaller than that of the portion 14 a, and a gap G for cushioning is formed between the cap body 3 and the cap body 3. In a state where the cap body 3 is tightened to the neck portion 6 of the container body 2 and positioned, the packing peripheral edge portion 14b is pushed up by the neck upper end 6a and is bent toward the upper gap G. An annular first groove 14e, which is a deeper notch, is formed in the innermost part of the packing peripheral part 14b, and the thickness of the packing peripheral part 14b is reduced in the part of the first groove 14e. Therefore, at the time of positioning, the packing peripheral edge portion 14b is more easily bent upward.

  As shown in FIGS. 2 and 3, the elastic body 15 is integrally embedded with the shaft portion 16 that is completely embedded in the packing peripheral edge portion 14 b and does not appear in appearance, and the lower side and the upper side of the shaft portion 16. The contact portion 17 and the cushion portion 18 are connected to each other. As shown in FIG. 3, the abutting portion 17 has a semi-cylindrical cross section, and when the cap body 3 is screwed into the container body 2, the abutting portion 17 abuts on the neck upper end 6a. When tightening 3 to the end, it is pressed while elastically deforming.

  The cushion portion 18 has a semi-cylindrical shape with a cross section facing upward, protrudes upward in the gap G, and is always in contact with the top surface of the cap body 3. The upper end of the cushion portion 18 does not always need to be in contact with the top surface inside the cap body 3 as in the illustrated example, and is in a normal state (the cap body 3 is not attached to the container body 2). Only when the cap body 3 is fastened to the container body 2 and positioned, and may be brought into contact with the inner surface of the top surface of the cap body 3 to be pressed.

  The base portions connected to the shaft portion 16 of the contact portion 17 and the cushion portion 18 are both embedded in the packing peripheral edge portion 14b. Further, when the contact portion 17 and the cushion portion 18 are viewed from below or above (not shown), they form an annular shape over the entire area of the packing peripheral edge portion 14b.

  The shaft portion 16 that integrally connects the abutting portion 17 and the cushion portion 18 is not provided uniformly over the entire circumferential direction of the packing peripheral edge portion 14b, but is provided at various intervals at appropriate intervals. They are connected only at the points where Accordingly, in the portion where the shaft portion 16 is not provided, the outer peripheral portion and the inner portion of the packing peripheral edge portion 14b are connected to each other. In FIG. Although it looks like a part, it is actually one.

  When double molding is performed, the synthetic resin packing material in a fluid state flows from the inside of the elastic body 15 to the outside or from the outside to the inside through the portion where the shaft portion 16 is not provided, and is solidified. Is done. As a result, the shaft portion 16 of the elastic body 15 becomes a locking portion, and the elastic body 15 is molded into a shape that locks from the packing 14 so as not to be detached. That is, for example, even if the elastic body 15 is to be removed from the packing 14 and pulled manually by the outer side of the packing 14, the shaft portion 16 of the elastic body 15 is a portion outside the elastic body 15 of the packing peripheral edge portion 14 b. Can not be disengaged.

  When the cap body 3 is completely tightened and positioned on the neck portion 6 of the container body 2, the contact portion 17 of the elastic body 15 is pushed up by the neck upper end 6a and elastically deformed so as to be slightly crushed in the vertical direction. The container body 2 is sealed while being pressed. Further, when the cap body 3 is tightened to the positioning position, the contact portion 17 exhibits cushioning properties due to its elasticity.

  Further, when the cap body 3 is tightened to the positioning position, the cushion portion 18 is in pressure contact with the inside of the top surface of the cap body 3 while being elastically deformed in addition to the abutting portion 17, and also exhibits cushioning properties. Further, when the cap body 3 is completely tightened and positioned on the neck portion 6 of the container main body 2, the packing peripheral edge portion 14 b is downward, that is, in the direction of the neck upper end 6 a of the container main body 2 due to the repulsive force of the cushion portion 18. Will be pushed back moderately.

  In the positioning container 1 according to the first embodiment described above, the packing 14 is directly fixed to the inner side of the top surface of the cap body 3, so that the container body 2 is not sealed when the container body 2 is sealed by the cap body 3. The packing 14 is not separated from the inside of the top surface of the cap body 3 at any time. As a result, it is possible to reduce the size of the cap body 3 in the vertical direction, and the degree of freedom in design design and decoration design is improved.

  In addition, the elastic body 15 that is a member that seals the opening of the container body 2 at the time of positioning and also a cushion member that exhibits cushioning properties at the time of positioning is integrally formed with the packing 14 by double molding. As compared with the case where the packing, the seal member, and the cushion member are formed as separate and independent members and assembled separately, the assembly of the cap body 3 can be simplified and the accuracy can be improved.

  In addition, the elastic body 15 has a shaft portion 16 which is a locking portion that locks the elastic body 15 from the packing 14 so that the elastic body 15 cannot be detached when the packing material in a fluid state flows and solidifies during double shaping. Since it is provided, the mechanical structure reliably prevents the packing 14 and the elastic body 15 from separating from each other. Therefore, it is not necessary to form the packing 14 and the elastic body 15 with materials having high affinity with each other, and the degree of freedom in material selection is improved.

  Further, when the cap body 3 is tightened to the positioning position, the cushion portion 18 of the elastic body 15 formed so as to protrude upward in the gap G provided between the packing 14 and the cap body 3 is 3 exhibits a cushioning property by being pressed against the inner surface of the top surface while being elastically deformed, and a double cushioning property is obtained together with the contact portion 17, so that an excessive force is not required at the time of tightening and loosening operation. Is soft and good.

  Further, when the packing peripheral edge portion 14b and the elastic body 15 are pushed upward more easily than necessary at the time of positioning, the pressure contact with the neck upper end 6a of the contact portion 17 is weakened, and the sealing performance may be deteriorated. However, this is surely prevented by the packing peripheral edge portion 14b being pushed back downward, that is, in the direction of the neck upper end 6a of the container body 2 by the repulsive force of the cushion portion 18.

  FIG. 4 shows a second embodiment of the positioning container according to the present invention. The configuration common to the first embodiment and the common operations and effects will be omitted and described. First, in the second embodiment, the packing peripheral portion 14b is formed to have the same thickness as the packing central portion 14a, and the annular concave portion is positioned on the inner side of the top surface of the cap body 3 so as to face the packing peripheral portion 14b. By providing 3a, a gap G is formed. Further, a second groove portion 14f having a width dimension smaller than that of the first groove portion 14e in the first embodiment is provided near the inner side of the packing peripheral edge portion 14b and facing the annular recess 3a.

  The elastic body 15 includes a shaft portion 16 having a slightly smaller width dimension than the first embodiment, and a contact portion 19 and a cushion portion 20 connected to the lower side and the upper side of the shaft portion 16. . The contact portion 19 is connected to the lower end of the shaft portion 16, and includes a root portion 19c embedded in the packing peripheral edge portion 14b, and a first contact portion formed so as to protrude downward and inward from the root portion 19c. 19a and a second contact portion 19b formed so as to protrude downward and outward from the root portion 19c. The cushion portion 20 is connected to the upper end of the shaft portion 16, and includes a root portion 20c embedded in the packing peripheral edge portion 14b, and a first cushion portion formed so as to protrude upward and inward from the root portion 20c. 20a and the 2nd cushion part 20b similarly formed so that it may protrude toward the upper direction and the outer side from the root part 20c.

  Since the shaft portion 16 is provided at various intervals in the circumferential direction as in the first embodiment, the packing peripheral portion 14b is connected at a portion where the shaft portion 16 is not provided. As a result, like the first embodiment, the shaft portion 16 becomes a locking portion, and the elastic body 15 is locked from the packing 14 so as not to be detached.

  In a state where the cap body 3 is completely tightened and positioned on the neck portion 6 of the container body 2, the contact portion 19 of the elastic body 15 is pushed up by the neck upper end 6a, and the first contact portion 19a is slightly contracted inward. The second abutting portion 19b is pressure-welded while being elastically deformed so that the diameter is slightly expanded outward, and the container body 2 is double-sealed. Further, when the cap body 3 is tightened to the positioning position, the both contact portions 19a and 19b exhibit cushioning properties due to their elasticity.

  In addition, when the cap body 3 is tightened to the positioning position, the cushion portion 20 in addition to the contact portion 19 is pressed against the inner surface of the cap body 3 while being elastically deformed, and also exhibits cushioning properties. Specifically, the first cushion portion 20a is pressed while being elastically deformed so as to be slightly contracted inward, and the second cushion portion 20b is pressed while being elastically deformed so as to be slightly expanded outward. Thus, cushioning properties can be obtained by the both cushion portions 20a and 20b.

  The first and second contact portions 19a and 19b and the first and second cushion portions 20a and 20b are thinner than the thick contact portion 17 and the cushion portion 18 in the first embodiment (width). Therefore, the abutment portion of the first embodiment can be elastically deformed more easily and can be easily bent inward (reduced diameter) or outwardly (expanded). Compared with 17 and the cushion part 18, the elastic body 15 can set the repulsive force which pushes back the packing peripheral part 14b below small.

  FIG. 5 shows a third embodiment of the positioning container according to the present invention. The configuration common to the first and second embodiments and the common operations and effects will be omitted from the description. First, in the third embodiment, as in the first embodiment, the gap G is formed by forming the packing peripheral edge portion 14b thinner than the packing central portion 14a. A third groove portion 14g having a slightly smaller width than the first groove portion 14e in the first embodiment is provided in the innermost portion in the packing peripheral edge portion 14b. Further, a circular concave portion 14d concentric with the packing 14 is provided on the lower surface side of the packing 14 from the packing central portion 14a to a part of the packing peripheral edge portion 14b. The packing 14 is the outermost portion of the circular concave portion 14d. And the third groove portion 14g have a small thickness dimension.

  Further, the elastic body 15 is formed in a U-shaped connecting portion 21 which is joined so as to surround the outer end portion of the packing peripheral edge portion 14b, and the lower side and the upper side of the connecting portion 21. It consists of a contact part 23 and a cushion part 22. The contact portion 23 has substantially the same shape as that of the second embodiment, and is connected to the lower end portion of the connecting portion 21 and has a root portion 23c embedded in the packing peripheral edge portion 14b and a lower portion from the root portion 23c. The first contact portion 23a is formed so as to protrude toward the inside, and the second contact portion 23b is formed so as to protrude downward and outward from the root portion 23c. The cushion portion 22 is connected to the upper end portion of the connecting portion 21 and includes a root portion 22a embedded in the packing peripheral edge portion 14b, and a protruding portion 22b formed so as to protrude right above the root portion 22a. Consists of.

  All of the connecting portion 21, the contact portion 23, and the cushion portion 22 extend over the entire circumferential direction of the packing peripheral edge portion 14b, and are formed in an annular shape. When performing the double molding, the packing peripheral edge portion 14b is a constriction in which the packing material in a fluidized state is sandwiched between the root portion 23c of the contact portion 23 and the root portion 22a of the cushion portion 22 from the packing central portion 14a side. It flows into the inside of the U-shaped connecting portion 21 through the portion 14i and is solidified as the outer end portion 14h. The thickness dimension in the vertical direction of the outer end portion 14h is larger than that of the constricted portion 14i. As a result, the base part 23c of the contact part 23 of the elastic body 15 and the base part 22a of the cushion part 22 become a locking part, and the elastic body 15 is locked from the packing 14 so as not to be detached. That is, for example, even if the elastic body 15 is to be removed from the packing 14 and pulled by hand toward the outer side of the packing 14, the root portion 23c of the contact portion 23 and the root portion 22a of the cushion portion 22 are Since it abuts on the outer end portion 14h, it cannot be detached.

  In a state in which the cap body 3 is completely tightened and positioned on the neck portion 6 of the container body 2, the contact portion 23 of the elastic body 15 is pushed up by the neck upper end 6a, and the first contact portion 23a is slightly contracted inward. The second abutting portion 23b is pressure-welded while being elastically deformed so that its diameter is slightly expanded outward, and the container body 2 is double-sealed by both. Further, when the cap body 3 is tightened to the positioning position, both the abutting portions 23a and 23b exhibit cushioning properties due to their elasticity.

  Further, when the cap body 3 is tightened to the positioning position, the protruding portion 22b of the cushion portion 22 in addition to the contact portion 23 is elastically deformed so as to be slightly crushed in the vertical direction inside the top surface of the cap body 3. However, it is pressure-welded and still exhibits cushioning properties.

  The shapes of the first and second contact portions 23a and 23b are substantially the same as those in the second embodiment, but the protrusion 22b is thicker than the cushion portions 20a and 20b in the second embodiment. Since the width is thick, it is difficult to be elastically deformed. As a result, compared to the second embodiment, the repulsive force at which the elastic body 15 pushes the packing peripheral edge portion 14b downward can be set large. On the other hand, since the packing 14 is provided with a circular recess 14d on the lower surface side, the packing 14 can be set so as to be easily bent upward (repulsive force is reduced) as compared with the second embodiment. .

  In each of the embodiments described above, the cream is exemplified as the contents of the positioning container, but it is needless to say that various liquids, powders, solids, and the like may be used.

It is a disassembled perspective view which shows 1st Embodiment of the positioning container concerning this invention. It is sectional drawing of the state of the positioning container of FIG. 1 in the state by which the cap body was clamped by the neck part of the container main body. FIG. 2 is a cross-sectional view of a main part of the positioning container of FIG. 1 in a state where a cap body is tightened and positioned on a neck part of the container main body. It is principal part sectional drawing of the state in which the cap body was clamped by the neck part of the container main body, and was positioned, which shows 2nd Embodiment of the positioning container concerning this invention. It is principal part sectional drawing of the state in which the cap body was clamped by the neck part of the container main body, and was positioned, which shows 3rd Embodiment of the positioning container concerning this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Positioning container 2 Container main body 3 Cap body 14 Packing 15 Elastic body 16, 22a, 23c Locking part 18, 20, 22 Cushion part G Gap

Claims (2)

A packing provided on the inner side of the top surface of the cap body to which the screwing stop position is positioned and screwed to the container body,
A positioning container provided on the packing and provided with an elastic body that seals the opening of the container body at the time of positioning;
The packing is directly fixed to the cap body,
The packing and the elastic body are integrally formed with each other by double molding, and the elastic packing material is separated from the packing by flowing and solidifying the packing material in a fluid state at the time of double molding. A positioning container provided with a locking portion that is locked in an impossible manner. A gap is provided between the packing and the cap body,
The positioning container according to claim 1, wherein the elastic body has a cushion portion that protrudes upward in the gap and is pressed against the inside of the top surface of the cap body during positioning.

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