JP2012041078A - Container lid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve a measuring function of a medicinal solution besides a child-proof function and a tamper evident function.SOLUTION: A lid of a container B achieves the child-proof function and the tamper evident function in combination with an inner lid 10 and an outer lid 20. The inner lid 10 forms into an inverted container shape having a spreading portion 15 at the lower end part whose maximum outer diameter is made to be larger than an inner diameter of the lower end part of the outer lid 20. The spreading portion 15 forms an outer circumference of a lower surface side at an edge 15a.

Description

  The present invention relates to a lid for a container having a function of measuring a chemical solution or the like in addition to a child proof function and a tamper evidence function.

  Screw-type caps are widely used for containers for storing chemical solutions (including liquid chemicals, water, oil, etc., hereinafter simply referred to as chemical solutions).

  The screw-type cap realizes a high level of safety by incorporating a child-proof function that cannot be opened by an infant or the like, and a tamper-evident function that indicates to the outside that the container has been opened. (For example, Patent Document 1). That is, when the outer lid is combined with the inner lid having the female screw and the outer lid is rotated in the closing direction, the inner lid can be attached to the mouth portion of the container, but even if the outer lid is rotated in the opening direction, the inner lid is not rotated. The child proof function can be realized. To open the container, the container is rotated in the opening direction while pushing down the outer lid in the axial direction. In addition, a lock ring for a tamper evidence function that is separated from the inner lid by first opening is attached to the lower end of the inner lid.

JP 2001-301783 A

  When such a conventional technique is used, the cap composed of the outer lid and the inner lid is not suitable for measuring the chemical solution stored in the container, so that the chemical solution is poured into a measuring cup, or is poured into another container. There was a problem that it was necessary to measure with a scale. When chemical liquid is poured into the inner lid of the cap, the chemical liquid overflows from the inner lid and enters between the outer lid, and when the cap is reattached to the mouth of the container, the chemical liquid between the inner lid and the outer lid is exposed to the outside. This is because it may flow out.

  Accordingly, in view of the problems of the prior art, an object of the present invention is to provide a container lid that has a child-proof function and a tamper-evident function, and can realize a sufficiently practical medicinal liquid measurement function. There is to do.

  In order to achieve this object, the structure of the present invention is a container lid body that combines a inner lid and an outer lid to realize a childproof function and a tamper-evident function. The gist is to form an inverted container shape having a maximum outer diameter at the lower end larger than the inner diameter at the lower end of the outer lid.

  The spread part can be formed with the outer periphery on the lower surface side as an edge, and the inner lid can be formed with a mark for measuring the medicinal solution on the inner surface.

  In addition, guide means for coaxially guiding the outer lid with respect to the inner lid may be provided on the outer lid and the upper portion of the inner lid. The guide means includes a first guide member on the inner lid side and the outer lid. The second guide member on the side may be fitted up and down.

  Further, the inner lid may be integrally formed with a lock ring having substantially the same outer diameter as that of the widened portion.

  According to the configuration of the invention, the inner lid of the lid body having the child proof function and the tamper evidence function by combining the inner lid and the outer lid is formed in an inverted container shape, and the widened portion is formed at the lower end portion. By forming and making the maximum outer diameter of the lower end larger than the inner diameter of the lower end of the outer lid, the gap between the inner lid and the outer lid is closed through the spread part, and the chemical liquid is prevented from entering the gap. As the maximum outer diameter of the lower end by the spread portion is increased, the chemical solution becomes more difficult to enter the gap. Therefore, the chemical solution from the container can be measured using the inner lid, and the measurement function of the chemical solution can be realized.

  The widened part forms an outer periphery on the lower surface side at the edge, so that when the chemical liquid received in the inner lid is poured into another container, the edge portion can be easily drained and the chemical liquid droops outside the inner lid. There is no.

  The guide means provided at the upper part of the outer lid and the inner lid guides the outer lid coaxially with respect to the inner lid, so that the outer lid does not tilt with respect to the inner lid, and the axial direction of the outer lid relative to the inner lid Relative movement and relative rotation can be smoothed to ensure the childproof function. For example, when the outer lid is excessively tilted with respect to the inner lid when the outer lid is rotated in the opening direction without pushing down the outer lid, the inner lid is moved in the opening direction by the frictional force generated between the outer lid and the inner lid. Although it may rotate accidentally, the guide means can effectively prevent such a malfunction.

  The guide means can reliably prevent the inclination of the outer lid with respect to the inner lid by vertically fitting the first guide member on the inner lid side and the second guide member on the outer lid side. The first and second guide members are preferably formed coaxially with the inner lid and the outer lid, respectively, and are engaged with each other via a knurl. This is because harmful adhesion of the first and second guide members can be prevented.

  The lock ring formed integrally with the inner lid can realize a tamper-evident function.

Overall configuration diagram Perspective view of main parts of container and inner stopper Configuration explanation of inner lid Configuration explanation of outer lid Explanatory drawing of an enlarged section of the main part Explanatory drawing of essential parts 1 is a cross-sectional view corresponding to the line ZZ in FIG. Usage diagram

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

  The lid of the container comprises a screw-type inner lid 10 to be attached to the mouth B1 of the container B and an outer lid 20 to be combined with the inner lid 10 (FIGS. 1 and 2). An inner plug C having a spout C1 is attached to the mouth B1.

  The container B is, for example, a plastic bottle in which a ring-shaped neck portion B4 is formed on the upper portion of the smoothly curved shoulder portion B5 and a mouth portion B1 is formed on the upper portion of the neck portion B4. A male screw B2 is formed on the outer periphery of the mouth B1, and ratchets B3, B3... Are formed below the male screw B2.

  The inner plug C is a ring-shaped fixing that is fixed so as to cover the upper end surface of the mouth B1 and the hollow nozzle C2 that forms the spout C1 at the tip, the press-fitting part C3 that is press-fitted into the mouth B1 of the container B It is formed by integrally molding the part C4. The nozzle C2 is formed with a slit C2a for air replacement when the chemical solution in the container B is poured out. The fixing part C4 has a seal rib C4a that contacts the upper end surface of the mouth part B1, and a mouth part B1. An engagement rib C4b for preventing from coming off is formed on the upper end portion from the outside. The inner plug C can be poured out from the spout C1 to the outside without dripping the chemical solution in the container B by tilting the container B with the spout C1 facing downward.

  The inner lid 10 is formed in an inverted bottomed container shape (FIGS. 1 and 3). Auxiliary ribs 11 in the circumferential direction are formed in the lower part of the outer periphery of the inner lid 10, and the cross-sectional shape of the auxiliary ribs 11 is formed with a thin concave groove 11a below the arcuate top. On the inner surface of the inner lid 10, a female screw 12 that matches the male screw B2 of the container B is formed. A short downward inner cylinder 13 is coaxially supported on the upper portion of the inner lid 10 via a ring-shaped connecting plate 10b, and the outer diameter of the inner cylinder 13 is tapered downward. A seal rib 14 is formed on the lower surface of the connection plate 10b. An expanded portion 15 is formed at the lower end portion of the inner lid 10, and the outer periphery of the lower surface side of the expanded portion 15 is formed at an edge 15 a. However, the edge 15a is preferably formed at an acute angle of 90 ° or less. A tamper-evident function lock ring 50 is attached below the spread-out portion 15 via connecting portions 51, 51.

  On the inner surface of the inner lid 10, a mark 16 for measuring a chemical solution is formed between the female screw 12 and the spread portion 15. The mark 16 is formed as a small step having a lower diameter on the lower side than the upper side, and a number “25” indicating a measuring liquid volume of 25 ml is appended thereto.

  A cylinder 17 that is continuous above the inner cylinder 13 is formed on the upper portion of the inner lid 10 via a connection plate 10b, and the upper end of the cylinder 17 is closed by a top plate 17a. Note that the top surface of the top plate 17 a is slightly higher than the upper end of the inner lid 10.

  On the outer periphery of the cylinder 17, the upward vertical block-like first engaging protrusions 41, 41... Are arranged so as to protrude on the top plate 17 a. In addition, on the inner side of the first engagement protrusions 41, 41,... On the top plate 17a, engagement ribs 31, 31,. Each engaging rib 31 is inclined toward the closing direction of the inner lid 10 (the direction of the arrow K2 in FIG. 3A), and the opening direction of the inner lid 10 (the direction of the arrow K2 in FIG. 3A). A vertical surface 31a is formed on the (opposite direction) side.

  The upper part of the outer periphery of the inner lid 10 is a ring-shaped first guide member 18. The outer periphery of the upper end portion of the first guide member 18 is formed as a curved surface that curves inward. Further, knurls 10 a, 10 a... Are formed on the outer surface of the inner lid 10 above the auxiliary ribs 11, and knurls 18 a, 18 a. 3A and 3B are a perspective view and a longitudinal sectional view of the inner lid 10, respectively.

  The outer lid 20 is formed in a cap shape that covers the inner lid 10 (FIGS. 1 and 4), and knurls 21, 21... Are formed on the outer surface of the outer lid 20. An auxiliary rib 22 corresponding to the auxiliary rib 11 of the inner lid 10 is formed on the inner surface of the outer lid 20. Further, an outwardly inclined surface 20 a is formed on the inner surface of the lower end of the outer lid 20. The inner diameter of the lower end of the outer lid 20 is smaller than the maximum outer diameter of the lower end of the inner lid 10, that is, the outer diameter of the edge 15 a of the spread part 15.

  On the top surface 24 of the outer lid 20, a low ring-shaped second guide member 23 is suspended coaxially with the outer lid 20. The outer diameter of the second guide member 23 is set slightly smaller than the inner diameter of the first guide member 18 on the inner lid 10 side. Further, on the top surface 24, corresponding to the first engaging protrusions 41, 41,... Of the inner lid 10, lower block-shaped second engaging protrusions 42, 42,. The blade-like urging portions 32, 32,... Are formed obliquely downward inside the second engagement protrusions 42, 42,. 4A and 4B are a partially broken perspective view and a longitudinal half sectional view of the outer lid 20, respectively.

  Eight first engaging protrusions 41, 41... Of the inner lid 10 are arranged at equal intervals in the circumferential direction of the cylinder 17 (FIG. 5A). In addition, the second engagement protrusions 42, 42... Of the outer lid 20 enter between the first engagement protrusions 41, 41... Of the inner lid 10 when the outer lid 20 is combined with the inner lid 10, respectively. Eight are arranged at equal intervals in the circumferential direction so as to be able to. However, FIG. 5A is an enlarged cross-sectional view of the main part corresponding to the arrow XX in FIG. 1, and FIGS. 5B and 5C are respectively Y1-Y1 lines in FIG. , Y2-Y2 is an enlarged cross-sectional explanatory view corresponding to the arrow view.

  On the other hand, each of the engaging ribs 31, 31... Of the inner lid 10 has a vertical surface 31 a facing one side in the circumferential direction of the inner lid 10, and the urging portions 32, 32. In the closing direction, the respective tips are disposed so as to be correctly opposed to the vertical surfaces 31 a of the respective engagement ribs 31. The four urging portions 32, 32... Are equally arranged with respect to the eight engagement ribs 31, 31. Further, the urging portions 32, 32... Are elastically deformed by contacting the top surface of the top plate 17 a of the inner lid 10, and urge the outer lid 20 in a direction away from the inner lid 10, that is, in a separating direction. (FIG. 1).

  In the lower part of the outer lid 20 and the inner lid 10, the auxiliary rib 22 of the outer lid 20 and the auxiliary rib 11 of the inner lid 10 are vertically engaged, and the outer lid 20 is prevented from coming off from the inner lid 10. The concave groove 11a of the auxiliary rib 11 prevents the auxiliary ribs 11 and 22 from being galled. In the upper part of the outer lid 20 and the inner lid 10, the second guide member 23 on the outer lid 20 side is fitted inside the first guide member 18 on the inner lid 10 side, and is engaged via knurlings 18a, 18a. By combining, the outer lid 20 is guided to the inner lid 10 coaxially. The outer lid 20 can be moved relative to the inner lid 10 so as to be pushed down in the axial direction, and can be relatively rotated.

  The lock ring 50 is a thin ring member having substantially the same outer diameter as the spread portion 15 of the inner lid 10 (FIGS. 3 and 6), and is integrally formed with the inner lid 10. Auxiliary ratchets 53, 53 are formed on the upper end surface of the lock ring 50 corresponding to the auxiliary ratchets 15 b, 15 b formed on the lower surface of the spread-out portion 15. Projections 54 are formed.

  On the inner surface of the lock ring 50, ratchets 52, 52... That engage with ratchets B3, B3... Of the container B are formed at every pitch angle θ1 = 45 ° (FIG. 7). Note that two sets of ratchets B3, B3... Are formed with a pitch angle .theta.2 = 180.degree., And each set of ratchets B3 and B3 has a pitch angle .theta.3 = 45 to 90 degrees. ing. The connecting portions 51, 51... Are each formed in an upward triangular pyramid shape (FIG. 3B, FIG. 6), and are arranged at a pitch angle of 90 °. Each connecting portion 51 connects the lower surface of the spread portion 15 and the upper end surface of the lock ring 50.

  The outer lid 20 positions each of the second engagement protrusions 42, 42... Between the first engagement protrusions 41, 41... Of the inner lid 10 (FIG. 5A, FIG. ), The second engaging protrusions 42 are positioned between the first engaging protrusions 41, 41 when pressed against the urging parts 32, 32... (The two-dot chain line in FIG. 3B). Further, at this time, the tips of the urging portions 32, 32,... Face the vertical surfaces 31a, 31a, etc. of the engagement ribs 31, 31,.

  On the other hand, when the outer lid 20 is rotated in the closing direction of the inner lid 10 without pressing the outer lid 20 against the inner lid 10, each second engagement protrusion 42 is engaged with the first engagement protrusion 41. Each urging | biasing part 32 engages with the vertical surface 31a of the nearest engagement rib 31 from one side, without doing. Therefore, if the outer lid 20 is rotated in the closing direction of the inner lid 10 as it is, the inner lid 10 can be rotated in the closing direction via the urging portions 32, 32... And the engaging ribs 31, 31. . Further, when the outer lid 20 is rotated in the opening direction of the inner lid 10 while pressing the outer lid 20 against the inner lid 10, each second engagement protrusion 42 is engaged with the first engagement protrusion 41, and the inner lid 10. Can be rotated in the opening direction.

  When the inner lid 10 and the outer lid 20 are assembled together and correctly attached to the mouth B1 of the container B by a capping device (not shown) (FIG. 1), the inner cylinder 13 of the inner lid 10 is inserted into the press-fitting portion C3 of the inner plug C. At the same time, the seal rib 14 is in close contact with the upper surface of the fixing portion C4. The inner lid 10 closes the mouth B1 in a watertight manner so that the nozzle C2 of the inner plug C is housed in the cylinder 17, and the lock ring 50 is attached to the mouth. The container B can be initially set in an unopened state by setting it at a fixed position below B1. That is, the lock ring 50 at this time is held above the neck B4 of the container B and indicates to the outside that the container B is unopened. Further, when the outer lid 20 is operated in the opening direction of the inner lid 10 in this state, each urging portion 32 slides on the upper surface of the top plate 17a of the inner lid 10 while getting over the engaging rib 31 (FIG. 5 ( C) (solid line, one-dot chain line, two-dot chain line) and the outer lid 20 do not rotate the inner lid 10 in the opening direction, and the container B is not opened carelessly.

  When opening the container B, the outer lid 20 is rotated in the opening direction of the inner lid 10 while pressing the outer lid 20 toward the inner lid 10 against the urging portions 32, 32. At this time, the second engagement protrusions 42, 42... Enter between the first engagement protrusions 41, 41..., Respectively, and the outer lid 20 rotates the inner lid 10 in the opening direction. Can do.

  At this time, the ratchets 52, 52... Of the lock ring 50 are engaged with the ratchets B3, B3 on the container B side (FIG. 7), and the lock ring 50 is prevented from rotating in the opening direction of the inner lid 10. Therefore, each connecting portion 51 is broken by the rotation of the inner lid 10 in the opening direction, and the lock ring 50 is separated from the inner lid 10 and dropped onto the neck B4 of the container B (FIG. 8A). That is, the lock ring 50 forms a gap d with the inner lid 10 to indicate to the outside that the container B has been opened, thereby realizing a tamper evidence function. Moreover, the lock ring 50 can display more clearly that the container B was opened by removing the container B from the container B after opening the container B ((B) in the figure).

  When opening the container B after opening, the outer lid 20 is rotated in the opening direction while pushing down the outer lid 20 toward the inner lid 10. At this time, the outer lid 20 rotationally drives the inner lid 10 in the opening direction via the first and second engaging protrusions 41, 41,..., 42, 42, and removes the inner lid 10 from the mouth B1. . That is, even if the outer lid 20 is rotated in the opening direction without being pushed down, the inner lid 10 cannot be removed, and the child proof function can be realized. Further, the container B after opening can be operated to rotate the inner lid 10 in the closing direction via the outer lid 20 to close the mouth B1. At this time, the outer lid 20 rotates the inner lid 10 via the biasing portions 32, 32... And the engaging ribs 31, 31.

  When using the chemical solution in the container B, the container B is opened, and the inner lid covers the chemical solution from the container B to the measuring mark 16 through the inner plug C with the expanded portion 15 facing upward. Pour to 10. The measured chemical solution should be diluted as used.

  In the above description, the first guide member 18 on the inner lid 10 side may be fitted into the second guide member 23 on the outer lid 20 side. Further, the first guide member 18 on the inner lid 10 side may use, for example, the outer periphery of the cylinder 17 instead of being formed on the inner lid 10 at the same diameter as the inner lid 10. That is, the first and second guide members 18 and 23 can be formed coaxially with the inner lid 10 and the outer lid 20, respectively, and can be formed as a pair of males and females that fit vertically. Further, the knurls 18a, 18a... May be formed on either side of the first and second guide members 18, 23.

  In addition, the measurement volume of the chemical | medical solution by the inner cover 10 can be set arbitrarily, and the number which shows measurement volume may be appended to the mark 16 for measurement, and does not need to be attached.

  The present invention can be widely and suitably applied to containers for storing liquid drugs, water, oil, seasonings and the like.

B ... Container 10 ... Inner lid 15 ... Spreading part 15a ... Edge 16 ... Mark 18 ... First guide member 18a ... Knurl 20 ... Outer lid 23 ... Second guide member

Claims (6)

  In a container lid that realizes a child-proof function and a tamper-evidence function by combining an inner lid and an outer lid, the inner lid is formed in an inverted container shape having an expanded portion at the lower end, and A container lid having a maximum outer diameter larger than an inner diameter of a lower end of the outer lid.   The container lid according to claim 1, wherein the spread portion has an outer periphery on a lower surface side as an edge.   The container lid according to claim 1, wherein the inner lid is formed with a mark for measuring a chemical solution on an inner surface.   The container lid according to any one of claims 1 to 3, wherein guide means for coaxially guiding the outer lid with respect to the inner lid is provided on top of the outer lid and the inner lid. body.   5. The container lid according to claim 4, wherein the guide means vertically fits the first guide member on the inner lid side and the second guide member on the outer lid side.   The container lid according to any one of claims 1 to 5, wherein the inner lid is integrally formed with a lock ring having substantially the same outer diameter as the spread portion.

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