JP5234803B2 - container - Google Patents

Description

  The present invention relates to a container, and more particularly, to a container that imparts high hermeticity and is easy to open.

  The present applicant has proposed a container having a high hermeticity (see, for example, Patent Document 1).

  The container includes a container body and a spout, and the spout includes a cylindrical main body portion fixed to the mouth portion of the container body and a cap screwed to the main body portion. Moreover, the cylinder port of the main body part of the spout is closed by a closing plate whose peripheral edge portion is connected through a thin broken portion, and a ratchet mechanism is provided between the closing plate and the cap. The ratchet mechanism is composed of a first tooth group on the closing plate and a second tooth group fitted and fixed in the cap. The second tooth group is disengaged from the first tooth group when the cap is screwed. Engage when screwed.

  Further, the container is configured such that at least one of the first tooth group and the second tooth group is hardened by crystallization by heating by heat treatment after the cap is screwed. When the screw is screwed, each ratchet tooth can easily get over. On the other hand, when the cap is screwed off, at least one tooth group of the ratchet is hardened and it is difficult to disengage each tooth, so that more reliable opening can be performed. It has the characteristics.

JP 2006-143308 A

  In the present invention, the same effect can be obtained without performing such heat treatment on the teeth group, that is, each tooth of the ratchet can easily get over when the cap is screwed, while lightly opening when the cap is screwed off. We propose a container that demonstrates the effect of being able to. Note that the container of the present invention is not subject to heat sterilization rather than heat treatment for the teeth.

The first means is configured as follows. That is, a spout B having a cap B3 screwed to a cylindrical main body B1 fixed to the mouth 10 of the container body A is provided, and a peripheral plate is connected to the peripheral portion of the main body B1 through a thinned breaking portion 24. The tube opening 26 is closed, and a ratchet mechanism is provided between the closing plate 25 and the cap B3. The ratchet mechanism is not connected to the first tooth group a on the closing plate 25 and the first tooth group a when the cap B3 is screwed. In the container formed by the second tooth group b in the cap B3 that is engaged when engaged and unscrewed, the peripheral wall provided with the lower end surface on which the closing plate 25 is positioned on the inclined surface inclined from the horizontal surface Part 25a and a top wall part 25b extending from the upper end edge of the peripheral wall part 25a, and the thin broken part 24 is constituted by a thin annular region whose vertical width is changed in the circumferential direction, and the thin annular region is inclined. The peripheral wall portion 25a is defined by a lower end edge at the lower surface position and an upper end edge positioned on an inclined surface inclined from a horizontal plane above the lower end edge. It is a thin annular region gradually spreads to the opposite site from one end.

The second means is configured as follows. That is, in the first means , the closing plate 25 is formed in a state of being housed in the upper end of the main body B1, and the ratchet mechanism is projected to the outer periphery of the cylindrical protruding portion 28 standing on the upper surface of the closing plate 25. The first tooth group a provided and the second tooth group b projecting from the inner periphery of the peripheral wall 50 of the cap B3.

The third means was configured as follows. That is, in the second means, the engagement protrusion 55 that is suspended from the back surface of the top wall 51 of the cap B3 is fitted to the inner periphery of the cylindrical projection 28 so as not to come out.

The fourth means is configured as follows. That is, in any of the first to third means, when the cap B3 is screwed, the inner peripheral upper part of the cap B3 and the outer peripheral upper part of the main body B1 are pressed against each other. A sealing function that allows the first sliding surface s1 provided on the main body B1 to slide on the second sliding surface s2 provided on the cap B3 to expand the upper end of the main body B1 outward. Was provided.

The fifth means is configured as follows. That is, any one of the first to fourth means is provided with a virgin seal function that breaks when the cap B3 is unscrewed.

The sixth means is configured as follows. That is, in any one of the first to fifth means, a finger-like plate-like protrusion 60 is provided on the outer surface of the peripheral wall 50 of the cap B3.

In the present invention, the thin-walled fracture portion 24 at the peripheral edge portion of the closing plate 25 that closes the tube opening 26 of the main body portion B1 of the spout B is configured by the thin-walled annular region whose vertical width is changed in the circumferential direction. In this case, the balance of the force applied to the entire thin broken portion 24 is lost, so that the thin broken portion 24 is likely to be partially cut, and as a result, the closing plate 25 can be easily cut. Accordingly, even if the first tooth group a and the second tooth group b of the ratchet mechanism are formed of a relatively soft material such as a synthetic resin, the second tooth group b gets over the first tooth group a and idles. It is possible to reliably prevent the occurrence of inconveniences such as, and to fully exhibit its functions. The closing plate 25 includes a peripheral wall portion 25a having a lower end surface located on an inclined surface inclined from a horizontal plane, and a top wall portion 25b extending from the upper end edge of the peripheral wall portion 25a, and the thin annular region is inclined Since the peripheral wall portion 25a is a thin annular region that is defined by a lower end edge of the lower surface position and an upper end edge that is positioned on an inclined surface that is inclined from a horizontal plane that is above the lower end edge, and gradually spreads from one end portion to the opposite portion, The inclined edges of the upper and lower edges enable further easy cutting.

  Further, as described above, the thin fracture portion 24 is configured by a thin annular region that gradually spreads from one end portion to the opposite portion, so that even if there is an unfavorable external force, the external force is buffered and absorbed by the thin annular region. It is possible to prevent the thin-walled fracture portion 24 from being carelessly cut. Furthermore, as before, sterilization of stored items can be carried out smoothly without worrying about leakage of stored items from the tube opening, and the closure plate 25 is broken during the operation of screwing off the cap B3. It can be opened by opening 26, making handling very convenient.

  The closure plate 25 is formed in a state of being housed in the upper end portion of the main body B1, and the ratchet mechanism is provided with a first tooth group a projecting from the outer periphery of the cylindrical projection 28 standing on the upper surface of the closure plate 25, and a cap B3. When the second tooth group b projecting on the inner periphery of the peripheral wall 50 is used, the ratchet mechanism can be stored compactly and efficiently, and there is no inconvenience that the height of the cap B3 is unnecessarily increased. There is also an advantage that the material can be reduced accordingly.

  When the engagement protrusion 55 suspended from the back surface of the top wall 51 of the cap B3 is fitted to the inner periphery of the cylindrical projection 28 so that it cannot be pulled out, it is not necessary to dispose of the closed plate 25 after opening. It can be used while remaining in the cap B3.

  When the cap B3 is screwed, a sealing function is provided so that the inner peripheral upper part of the cap B3 and the outer peripheral upper part of the main body B1 are pressed against each other, and the first sliding surface s1 provided on the main body B1 has a cap. When the second sliding surface s2 provided on B3 is slid to provide an expanding means for expanding the upper end of the main body B1 outward, a good seal of the tube opening 26 is possible even after opening. The sealing means functions more reliably by the spreading means.

  If a virgin seal function that breaks when the cap B3 is unscrewed is provided, it is obvious whether or not the cap has been opened, and it is possible to improve the reliability of the product and to prevent tampering.

  When a plate-like protrusion 60 for hooking is provided on the outer surface of the peripheral wall 50 of the cap B3, the cap B3 can be rotated more easily, and can be opened more easily in combination with the structure of the thin broken portion 24. Become.

It is a partially notched principal part front view of a container. Example 1 It is a principal part expanded sectional view which shows a part of spout. Example 1 FIG. 3 is a transverse sectional view taken along line xx in FIG. 2. Example 1 It is an expanded view of a thin broken part part. Example 1 It is a partially notched principal part front view of a container. (Example 2) It is an expanded view of a thin broken part part. (Example 2) It is a partially notched principal part front view of a container. (Example 3) It is an expanded view of a thin broken part part. (Example 3)

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 to 3 show an example of the container of the present invention, and the container 1 includes a container body A and a spout B.

  As the container body A, for example, a blow-molded container, a tube-shaped container, or a bag-shaped container such as a gusset type or a standing pouch can be employed. Then, the spout B is provided by being fixed to the mouth portion 10 of the container body A by a method such as integral molding or fusion. The mouth 10 of the container A is mainly located at the upper end, but is not limited thereto.

  The spout B includes a main body B1, a pipe B2, and a cap B3. The main body B1 has a cylindrical shape in which the outer periphery is welded and fixed to the mouth portion 10 of the container body A, and is formed integrally with the pipe B2 by synthetic resin or the like. In addition, a belt-like fusion outer surface f having an uneven surface is provided at the lower outer periphery of the main body B1 so that the mouth portion 10 can be closely welded, and a pair of flanges 20 are provided above the fusion outer surface f. 21 and a protrusion 22 and a screw 23 are sequentially provided on the upper outer periphery. The fusion outer surface f is not limited to this shape. For example, the fusion outer surface f may be a belt-like fusion surface having a spindle shape in plan view or a belt-like fusion surface having an elliptical shape in plan view. It may be both side surfaces of the plate-like protrusion.

  In addition, the cylinder port 26 of the main body B1 is closed by a closing plate 25 whose peripheral portions are connected via a thin broken portion 24. The closing plate 25 has a form in which the central portion is raised, and the peripheral edge portion is connected to a lower position away from the upper end of the tube opening 26 in the main body portion B1 by a thin broken portion 24. More specifically, a flange portion 27 having an upper surface located on an inclined surface inclined from a horizontal plane is projected on the upper inner surface of the main body portion B1, and the lower end edge of the closing plate 25 is integrally connected to the inner peripheral edge of the flange portion 27. ing. The blocking plate 25 includes a peripheral wall portion 25a having a lower end surface located on an inner peripheral upper surface of the flange portion 27, that is, an inclined surface inclined from a horizontal plane, and a top wall portion 25b extending from an upper end edge of the peripheral wall portion 25a. It has. The peripheral edge portion of the top wall portion 25b is formed in a taper shape.

  The thin broken portion 24 is formed of a thin annular region whose vertical width is changed in the circumferential direction. In this example, the inclined peripheral wall portion 25a is defined by a lower end edge of the lower surface position and an upper end edge located on an inclined surface inclined from a horizontal plane above the lower end edge, and is a thin-walled annular shape that gradually spreads from one end portion to an opposing portion Consists of regions. In the illustrated example, a part of the upper and lower edges of the thin annular region is positioned on the horizontal plane, and the part is configured as the narrow part 24a, and the other is configured as the wide part 24b that is sequentially expanded. The definition of the upper and lower edges includes such changes.

  The pipe B2 communicates with the main body B1 and is suspended in the container body A. The pipe B2 acts to suck the contents in the container body A smoothly and efficiently, and is flexible. It also contributes to the shape retention of the container body A provided with. In the illustrated example, the upper end is connected integrally with the lower end opening of the main body B1, and a tubular shape is formed in which the lower end is suspended from the lower part in the container body A. Further, a window hole 40 is formed in the pipe B2. The number, position, size, etc. of the window holes 40 can be selected as appropriate.

  The cap B3 is also formed of a synthetic resin and is screwed to the outer periphery of the main body B1. In the illustrated example, a cylindrical shape with a lower end opening having a top wall 51 extending from the upper end edge of the peripheral wall 50 is formed, and a screw 52 provided around the inner periphery of the peripheral wall 50 is screwed into the screw 23 of the main body B1. It is configured as follows. Further, a sealing function is provided between the main body B1 and the cap peripheral wall 50 so as to be in close contact when the cap is screwed. This sealing function partitions the top and bottom of the close part in an airtight and liquid tight manner. Specifically, the inner peripheral surface of the cap peripheral wall 50 corresponding to the outer peripheral upper end portion of the main body B1 is closely fitted.

  In the present invention, a ratchet mechanism for preventing the cap B3 from rotating in the screwing direction is provided between the closing plate 25 and the cap B3. Therefore, while the cap B3 is screwed, the operation can be easily performed, but when the screw is unscrewed, the closing plate 25 tries to rotate in the screwing direction integrally with the cap B3, and as a result, the thin-walled fracture portion 24 is broken. Thus, the tube opening 26 is configured to open.

  The ratchet mechanism is provided in the first tooth group a on the closing plate 25 and the cap B3, and is engaged with the first tooth group a when the cap is screwed and not engaged with the first tooth group a. It consists of tooth group b. In the illustrated example, a first tooth group a that is provided around the outer periphery of the columnar convex portion 28 that protrudes on the closing plate 25 and a second tooth group that protrudes inward from the inner periphery of the upper part of the peripheral wall 50 of the cap B3. and b. The first tooth group a is formed by connecting a predetermined number of triangular plate-shaped unit teeth 29 inclined in a predetermined direction to the outer periphery of the cylindrical convex portion 28, and the second tooth group b is inclined in a predetermined direction. The protruding piece-shaped unit teeth 53 are configured to protrude in a predetermined number at predetermined intervals in the circumferential direction.

  Further, the seal protrusion 54 provided on the inner surface at a predetermined position on the inner surface of the cap peripheral wall 50 is brought into pressure contact with the upper end of the outer periphery of the main body B1 when the cap B3 is screwed to provide a sealing function. Therefore, in this case, there is a gap in both portions by the protruding width of the seal protrusion 54 at that portion. Note that the specific configuration for providing the sealing function is not limited to this, and the inner peripheral surface of the cap B3 and the outer peripheral surface of the main body B1 may be brought into pressure contact with each other. The expansion means is more likely to function if there is a gap.

  Moreover, the expansion means for improving the above-mentioned sealing function is provided. The expanding means slides the second sliding surface s2 provided on the cap B3 on the first sliding surface s1 provided on the main body B1 to expand the upper end portion of the main body B1 outward, and thereby the seal portion. The press contact force is increased to improve its function. As the specific forms of the first sliding surface s1 and the second sliding surface s2, various forms can be adopted as long as the above functions can be exhibited. In the illustrated example, the upper end surface of the main body B1 is used as the first sliding surface s1. Adopting a form formed in a taper shape that goes down, and adopting a form formed in a taper shape that forms the lower surface of the downward stepped portion formed on the upper inner surface of the peripheral wall 50 as the second sliding surface s2 inward. Yes. Further, it is preferable that each sliding surface adopts an angle with substantially the same inclination angle. Further, the inclination angle of each sliding surface having a tapered shape may be appropriately selected within a range in which the above object can be achieved. As another example of the expanding means, for example, a form in which the upper end surface of the main body B1 is formed in a semicircular shape with the longitudinal section projecting upward as the first sliding surface s1, and the second sliding surface is used. As the surface s2, a form in which the lower surface of the downward stepped portion is formed in a tapered shape that is inwardly lowered may be employed.

  In the present invention, when the cap B3 is screwed off, a locking means for locking the closed plate 25 that has been broken and separated into the cap B3 may be provided. As an example of this locking means, an engagement protrusion 55 suspended from the cap B3 is engaged with the cylindrical protrusion 28 while preventing it from coming off. More specifically, a locking protrusion 30 is provided on the inner peripheral surface of the cylindrical protrusion 28, and the engagement protrusion 55 is provided on the outer periphery of a cylindrical engagement protrusion 55 that is suspended from the back surface of the top wall 51 of the cap B3. 56 is provided so as to project over and engage with the locking projection 30.

  In the present invention, a virgin seal function that breaks when the cap B3 is screwed off may be provided. As an example of the function, an annular cut band 58 is integrally formed on the lower surface of the peripheral wall 50 of the cap B3 via an easily cut connecting portion 57, and the cut band 58 is prevented from coming out to the outer periphery of the main body B1. Engaged. More specifically, it is configured such that the engagement ridge 59 protruding on the inner surface of the cut band 58 and the lower surface of the ridge 22 on the outer periphery of the main body B1 can be crossed and engaged to express unused. Furthermore, in the present invention, a plate-like projection 60 for finger hanging may be provided on the outer surface of the peripheral wall 50 of the cap B3. By providing the plate-like protrusion 60, the cap B3 can be more easily rotated.

  The container 1 configured as described above, for example, is filled with a container body A in which a spout with a cap B3 screwed to a main body B1 is fixed and sealed, and if necessary, is heat sterilized by a known method. Heat the entire container. When the container 1 is used, for example, when the cap B3 is unscrewed from the state shown in FIG. 1, the easy-to-cut connecting portion 57 is cut, and the cut band 58 is dropped downward and opened. The ratchet mechanism is activated at the same time, that is, the first tooth group a and the second tooth group b mesh with each other, and the cylindrical convex portion 28 is forcibly rotated in the screwing rotation direction. In order to receive the force, a shearing force acts on the thin-walled fracture portion 24 and breaks, and the tube opening 26 opens. At this time, the cut off closing plate 25 is configured as a part of the cap B3 by the engagement protrusion 55 of the cap B3 engaging with the cylindrical convex portion 28 on the upper surface thereof and being fixed to the upper part in the cap B3. . Next, the contents stored in the container A are poured out from the opened tube port 26.

  5 and 6 show another example, and shows an example in which the thin-walled fracture portion 24 having a different form in the example of FIG. 1 is formed. In this example, the lower end edge of the peripheral wall portion 25a is horizontal, and in the thin-walled fracture portion 24, only a part of the lower end portion is a narrow portion 24a having a small vertical width, and the other portion is a wide portion 24b having a large vertical width. It is composed of a ring-shaped thin annular region. The upper part of the narrow part 24a is provided as a projecting part 31 in a state where a part of a normal thick peripheral wall part 25a projects in a vertical strip shape. The other configuration is the same as that of the example of FIG. The operation is basically the same as the example of FIG.

  FIG. 7 and FIG. 8 show still another example, and similarly shows an example in which the thin fracture portion 24 having a different form in the example of FIG. 1 is formed. Also in this example, the lower end edge of the peripheral wall portion 25a is horizontal, and in the thin-walled fracture portion 24, only a part of the central portion is a narrow portion 24a having a small vertical width, and the other portion is a wide portion 24b having a large vertical width. It is composed of a ring-shaped thin annular region. The upper part of the narrow part 24a is provided as a projecting part 31 in a state where a part of a normal thick peripheral wall part 25a projects in a vertical strip shape. Further, the lower part of the narrow part 24a maintains a normal thickness by the protruding part 32 that protrudes integrally from the cylindrical wall of the main part B1. The other configuration is the same as that of the example of FIG. The operation is basically the same as that of the example of FIG.

  In addition, although each said example was shown as a form of the thin part fracture | rupture part 24, if the requirements of comprising by the thin annular area | region which changed the up-and-down width in the circumferential direction are satisfy | filled, various other forms can be employ | adopted. For example, in the example of FIG. 5, even if the narrow portion 24a is formed at the upper end portion instead of the lower end portion, in the example of FIG. It may be provided or may be in other forms.

1 ... Container A ... Container
10 ... Mouth B ... Spout
B1 ... Main unit
20 ... Flange, 21 ... Flange, 22 ... Projection, 23 ... Screw, 24 ... Thin-walled fracture part,
25 ... Blocking plate, 25a ... Peripheral wall, 25b ... Top wall, 26 ... Tube opening, 27 ... Flange,
28 ... cylindrical convex part, 29 ... unit tooth, 30 ... locking protrusion, 31 ... protruding part, 32 ... protruding part,
f ... outer surface of fusion, a ... first tooth group, s1 ... first sliding surface
B2 ... pipe
40 ... Window hole
B3… Cap
50 ... peripheral wall, 51 ... top wall, 52 ... screw, 53 ... single tooth, 54 ... seal projection, 55 ... engagement projection, 56 ... engagement projection, 57 ... coupling portion, 58 ... cut band, 59 ... engaging ridges, 60 ... plate-like protrusions,
b ... 2nd tooth group, s2 ... 2nd sliding surface

Claims (6)

It comprises a container body (A) mouth (10) fixed to the cylindrical body portion (B1) to spout screwed cap (B3) of (B), via thin fracture portion (24) of the peripheral portion the linked closure plate (25) closes the snout (26) of the main body (B1), a ratchet mechanism is provided between the closure plate (25) and cap (B3), the ratchet mechanism, the closure plate (25) The upper first tooth group ( a ) and the second tooth group ( b ) in the cap ( B3 ) that is disengaged from the first tooth group ( a ) when screwed and the cap ( B3 ) is engaged. In the container constituted by the above, the closing plate (25) extends from the peripheral wall portion (25a) having the lower end surface located on the inclined surface inclined from the horizontal surface and the upper end edge of the peripheral wall portion (25a). and includes a top wall portion (25b) has a thin breakable portion (24), constitutes a vertical width of a thin annular region is varied in the circumferential direction, the said thin annular region, inclined And the lower edge of the peripheral wall portion (25a) the lower surface position, defined by the upper edge located on an inclined surface inclined from the horizontal plane of the position above the lower edge, is a thin annular region extending gradually in opposite site from one end A container characterized by that. The closing plate (25) is formed in a state of being housed in the upper end of the main body (B1), and the ratchet mechanism is provided on the outer periphery of the cylindrical convex portion (28) standing on the upper surface of the closing plate (25). The container of Claim 1 comprised by the 1st tooth group (a) and the 2nd tooth group (b) protrudingly provided by the inner periphery of the surrounding wall (50) of the cap (B3). The container according to claim 2, wherein an engagement protrusion (55) suspended from the back surface of the top wall (51) of the cap (B3) is fitted to the inner periphery of the cylindrical protrusion (28) so as not to come out. Provided on the main body (B1) with a sealing function that presses the cap (B3) between the inner peripheral upper part of the cap (B3) and the outer peripheral upper part of the main body (B1) when screwed. The first sliding surface (s1) is provided with expansion means for sliding the second sliding surface (s2) provided on the cap (B3) to widen the upper end of the main body (B1) outward. The container according to any one of claims 1 to 3. The container according to any one of claims 1 to 4, further comprising a virgin seal function that is broken when the cap (B3) is screwed off. The container according to any one of claims 1 to 5, wherein a plate-like protrusion (60) for finger hanging is provided on the outer surface of the peripheral wall (50) of the cap (B3).

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