JP4697729B2 - Cap with inner plug - Google Patents

Description

  The present invention relates to a cap, and more particularly, to a cap with an inner plug that exhibits a virgin seal function in combination with the inner plug.

  There has been proposed a cap with an inner stopper that can be used to check whether the attached container body is unused (see, for example, Patent Document 1).

  The cap is provided with a column with a bowl-shaped upper tip on the top plate, and a column with a strut to which a pulling ring is connected, and a thin-walled weak wire is provided around the inside of the tube. A cap mounting cylinder having an engaging projection is set up on the outer side of the dispensing cylinder, and a knob for removal, a vertical thin wall weak line, and a bottle mouth neck at the lower peripheral edge of the cap mounting cylinder through a thin wall weak line. A gripping cylinder having a fitting projection to be fitted is suspended, and an inner plug having an inner ring provided on the lower surface of the top plate is provided. In addition, a cap is provided on the side wall that is fitted to the outer periphery of the cap mounting cylinder, and a cap is connected to the cap through a hinge so that the dispensing cylinder is covered with the lid so as to be opened and closed.

The cap can recognize the unused contents in the container attached due to the presence of the cutout part surrounded by the thin line of weakness, and pull the removal knob provided on the gripping cylinder of the inner plug outward. When the gripping cylinder is detached from the inner plug, it also has the convenience of handling that the inner plug can be easily removed and discarded.
Japanese Patent Laid-Open No. 08-058824

  In the present invention, in addition to the above-described virgin seal that closes the discharge path, a virgin seal that can be used to determine whether a container is unused at first glance is provided. We propose a cap with a cap that is convenient.

As a first means, the outer periphery of the container body B standing up through the taper-shaped shoulder portion 11 whose diameter is reduced upward is fitted to the outer periphery of the mouth neck portion 12 while preventing it from coming out, and is easily cut up and down. A sealing cylinder 2 formed by opening a window hole 21 defining a narrow portion 22 and an inner cylinder 32 fitted into the container body neck portion 12 and closed at the lower end with a closing plate 34 that can be pressed and broken. And a cap main body 4 that is provided so that a discharge cylinder 42 is suspended from a top plate 41 in the inner cylinder 32, and a peripheral wall 40 is positioned above the sealing cylinder 2 so as to be able to be screwed down. As the cap body 4 is screwed down, the discharge cylinder 42 breaks and removes the closing plate 34, and the sealing cylinder 2 is compressed and deformed while the lower end of the sealing cylinder 2 is in contact with the shoulder 11 to thereby narrow the narrowed portion 22. Was configured to be cut.

As a second means, the upper outer periphery of the mouth-and-neck portion 12 of the container B standing up through the taper-shaped shoulder portion 11 whose diameter is reduced upward is the small outer diameter portion 12a, and the lower outer periphery is the large outer diameter portion. A sealing tube which is formed by preventing the outer periphery of the large outer diameter portion 12b of the container body B formed in 12b from being fitted to the outer periphery and fitting a window hole 21 defining an easily cut narrow portion 22 in the vertical direction. 2 and the inner cylinder 32 fitted to the inner periphery of the mouth-and-neck portion 12 and the outer cylinder 30 fitted to the outer periphery of the small outer diameter portion 12a are connected by a flange 31, and the lower end of the inner cylinder 32 can be pressed and broken. An inner plug 3 that is closed by the closing plate 34 and that cannot be removed from the mouth-and-neck portion 12 and cannot be rotated, and a lower inner periphery of the peripheral wall 40 positioned above the sealing tube 2 are connected to a large inner diameter portion 40a. And a cap main body 4 in which a discharge cylinder 42 is suspended from the top plate 41 in the inner cylinder 32 and has a small inner diameter portion 40b. A sliding projection 45 projecting from the small inner diameter portion 40b is slidably fitted into the spiral guide groove 37, and a first screw 14 is provided on the outer periphery of the large outer diameter portion 12b, and the large inner diameter portion 40a. The cap main body 4 is configured to be able to be screwed down by providing a second screw 44 on each of them, and when the cap main body 4 is screwed down, the discharge cylinder 42 breaks and removes the closing plate 34, and the sealing cylinder The sealing tube 2 is compressed and deformed while the lower end of 2 is in contact with the shoulder 11 to cut the narrow portion 22.

The container body B is made of synthetic resin, glass, or the like, and is used in which a shoulder portion 11 with which the lower surface of the sealing tube 2 pressed from above is in contact is provided at the lower portion of the mouth-and-neck portion 12 .

  The sealing tube 2 is formed of a synthetic resin, and the window hole 21 has a shape that can define the narrow portion 22 in the vertical direction as described above. In addition, various types can be adopted even if they are indefinite. The narrow portion 22 may be in any form that can be broken by deforming the sealing tube 2 by being crushed when the cap body 4 is lowered, and can be variously selected in consideration of the material, the size of the sealing tube 2, and the like. For example, the upper and lower widths of the narrowest portion may be about 1 mm to 10 mm, but are not limited to this. There may be one place or a plurality of places where the window hole 21 is formed. The sealing tube 2 may be formed separately from the inner plug 3 or may be formed integrally with the inner plug 3. In the case of being formed integrally with the inner plug 3, the upper end edge of the sealing tube 2 is connected to the inner plug at an easily cutable breakable portion so as to be cut.

  The inner plug 3 can also be formed of a synthetic resin or the like, and is preferably fitted with the engagement means while preventing it from being pulled upward. In addition, when the cap body 4 is screwed around the outer periphery, the container body A rotation preventing means may be provided between the mouth and neck portion 12.

  The cap body 4 and the lid body 5 are also made of synthetic resin. The cap body 4 has a cylindrical shape with an open lower end, and a discharge cylinder 42 communicating with the discharge port a provided in the top plate 41 is suspended from the back surface of the top plate 41. The discharge cylinder 42 is suspended in the inner cylinder 32 of the inner plug 3. Further, the peripheral wall 40 is attached to the outer periphery of the upper part of the mouth-and-neck portion 12 so as to be able to be screwed down directly or indirectly, and is attached to the sealing tube 2 in a state where the screw-down is possible. In this state, the discharge cylinder 42 is positioned above the closing plate 34 and is lowered to a position where the breaking portion 33 of the closing plate 34 is pressed and broken by the cutting blade 43 as the cap body 4 is screwed down. Note that the cutting blade 43 of the discharge cylinder 42 is not necessarily provided, and instead of the closing plate 34 provided with the breaking portion 33, the whole may be a closing plate capable of being pressed and broken.

  The cap of the present invention can be opened by removing the closing plate 34 of the discharge passage by a simple operation of lowering the cap body 4, and can be removed by breaking the sealing tube 2. There is a convenience in handling that can be removed at the same time. Further, after removing the virgin seal, the main body and the lid 5 can provide an appearance as a normal cap with a lid. Further, since the cap body 4 is screwed down to remove the two virgin seals, the lowering is strong and the two virgin seals can be removed more reliably.

  In the second means, the upper outer periphery of the mouth / neck portion 12 of the container body is configured as a small outer diameter portion 12a, the lower outer periphery is configured as a large outer diameter portion 12b, and the lower inner periphery of the peripheral wall 40 of the cap body is configured as a large inner diameter The portion 40a has an upper inner periphery configured as a small inner diameter portion 40b, and a sliding projection 45 projecting from the small inner diameter portion 40b is slidable in a spiral guide groove 37 provided around the outer periphery of the outer cylinder 30. Since the cap main body 4 is configured to be able to be screwed down by providing a first screw 14 on the outer periphery of the large outer diameter portion 12b and a second screw 44 on the large inner diameter portion 40a. 4 can be smoothly lowered, and the cap body and the neck 12 can be securely screwed after the sealing tube 2 is cut and removed, and a stable cap mounting state after opening can be maintained. .

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

  The drawing shows an example of the cap of the present invention. The cap A is fitted and fixed to the container body B, and includes a sealing tube 2, an inner plug 3, a cap body 4, and a lid body 5. ing.

  The container body B is formed of a synthetic resin, and the mouth and neck portion 12 is erected on the upper end of the cylindrical body portion 10 via the shoulder portion 11, and the upper portion of the mouth and neck portion 12 is reduced in diameter to a small outer diameter portion 12a. The other lower part of the mouth-and-neck part 12 is configured as a large outer diameter part 12b. A first locking ridge 13 is provided around the lower end of the outer periphery of the mouth-and-neck portion 12, and a first screw 14 is provided above the first locking ridge 13. In addition, a large number of first vertical protrusions 15 in the circumferential direction are provided vertically at the lower outer periphery of the small outer diameter portion 12a, and a second locking protrusion 16 is provided above the first vertical protrusions 15 above.

  The sealing cylinder 2 has a cylindrical shape formed of a synthetic resin, and the first engagement protrusion 20 projecting from the lower end of the inner periphery is moved over and engaged with the lower surface of the first locking protrusion 13. It is fitted to the outer periphery of the mouth-and-neck portion 12 while preventing it from coming out upward. The height of the sealing tube 2 is configured to be substantially equal to the height of the large outer diameter portion 12b of the mouth-and-neck portion 12, and when fitted to the outer periphery of the large outer diameter portion 12b, the upper surface thereof and the upper surface of the large outer diameter portion 12b are approximately It is configured to be at an equal level. An octagonal window hole 21 is formed in the cylinder wall of the sealing cylinder 2, and an easily cut narrow portion 22 is defined above and below the window hole 21. The easily cut narrow portion 22 is cut by deformation when the sealing tube 2 is crushed. In this example, the sealing tube 2 is formed separately from the inner plug 3. However, the upper end edge of the sealing tube 2 and the lower end edge of the outer tube of the inner plug 3 to be described later are interposed through an easily cut rupture portion. May be integrally formed by connecting them together.

  The inner plug 3 has a flange 31 extending on the small outer diameter portion 12a from the upper end edge of the outer cylinder 30 which is fitted to prevent the outer periphery of the small outer diameter portion 12a from rotating and coming out. An inner cylinder 32 suspended downward from the inner peripheral edge of the flange 31 is fitted to the inner periphery of the mouth neck 12 and is closed by a closing plate 34 extending through a thin broken portion 33 to the lower end edge of the inner cylinder 32. The lower end opening of the cylinder 32 is closed.

  The outer cylinder 30 is provided with a second engagement protrusion 35 that is engaged with the lower surface of the second locking protrusion 16 on the inner peripheral upper part to prevent the upper cylinder 30 from coming out upward. A plurality of second vertical ridges 36 vertically provided in the circumferential direction are engaged with the first vertical ridges 15 to prevent rotation with respect to the small outer diameter portion 12a. In addition, a guide groove 37 extending from the upper end to the lower end edge with a predetermined inclination angle is provided in the outer peripheral surface of the outer cylinder 30.

  As shown in a development view in FIG. 3, the guide groove 37 is recessed in a spiral shape as a whole, and an upper end portion is provided with an introduction portion 37 a having an open upper end surface, the lower end of which is the lower end of the outer cylinder 30. Has reached. The inclination angle of the guide groove 37 is the same as that of the first screw 14 and the second screw to be described later, that is, each pitch is formed the same, and the sliding projection 45 is moved to a predetermined position. The second screw thread is configured to be screwed into the first screw thread 14 when sliding down.

  The cap body 4 has a peripheral wall 40 mounted on the sealing cylinder 2 so as to be lowered, and a discharge cylinder 42 is suspended from the back surface of the top plate 41 in the inner cylinder 32. The lower end edge of the discharge cylinder 42 is The cutting blade 43 is configured. Further, a discharge port a is opened in the top plate 41 in the discharge cylinder 42. The discharge cylinder 42 has a cylindrical shape with a slanted lower edge and a sharp pointed shape, and is suspended so that the breaking portion 33 of the closing plate 34 can be reliably broken as the cap body 4 is lowered. Has been. Further, the lower portion of the peripheral wall 40 is formed in the large inner diameter portion 40a, and the upper portion is formed in the small inner diameter portion 40b. A second screw 44 is provided around the large inner diameter portion 40a, and the lower end of the small inner diameter portion 40b is provided. A sliding projection 45 that can slide in the guide groove 37 is provided at a predetermined position. Accordingly, the second screw 44 is configured not to contact the outer tube 30 at the outer position of the outer tube 30 but to reach the large outer diameter portion 12b of the mouth-and-neck portion 12 and to be screwed with the first screw 14. Yes.

  The lid 5 is provided on the cap body so as to be openable and closable, and its rear part is rotatably connected to the rear part of the cap body 4 via an elastic reversing hinge 50 and is fitted to the discharge port a from the back. A plug cylinder 51 that is closed together is suspended, and a finger hooking protrusion 52 is projected from the front.

  A case where the cap A configured as described above is used will be described. In the state of FIG. 1, the mouth and neck portion 12 is blocked, so that the stored liquid cannot be discharged. Further, as shown in FIG. 2, it can be easily understood that the inside of the container body B is unused due to the presence of the sealing tube 2 provided with the window holes 21. When the cap body 4 is rotated from this state, the sliding protrusion 45 is guided by the guide groove 37 and the cap body 4 is screwed down with respect to the container body B. At this time, the sealing cylinder 2 is shown in FIG. As shown in FIG. 5, the narrow portion 22 is cut by being compressed. The cutting of the narrow portion 22 is preferable because both the envelope 2 can be easily removed if it is cut, but if at least one is cut, the other can be easily cut by pulling the envelope 2 from that state. . In addition, when the sealing cylinder 2 is integrally connected to the outer cylinder 30 via an easily cut breakable portion, the breakage portion is also cut at the time of compression. When the cap body 4 is pivoted and lowered, the second screw 44 of the peripheral wall 40 is screwed with the first screw 14 of the container body neck 12 to guide the guide groove 37 of the sliding protrusion 45. The cap main body 4 is pivoted and lowered by screwing the first and second screws 14 and 2 in parallel with each other. At the same time, the breaking portion 33 is cut by the cutting blade 43 and the closing plate 34 falls into the container body B. Finally, as shown in FIG. 6 or FIG. 7, the sealing tube 2 is removed, and the cap body 4 is screwed to the lowest position of the mouth and neck portion 12. From this state, the lid 5 can be opened to discharge the stored liquid.

It is a longitudinal cross-sectional view of this invention cap. Example 1 It is a side view of this invention cap. Example 1 It is an expanded view of the guide groove in this invention cap. Example 1 It is a longitudinal cross-sectional view which shows the state in the middle of opening of this invention cap. Example 1 It is a side view which shows the state in the middle of opening of this invention cap. Example 1 It is a longitudinal cross-sectional view which shows the state after opening of this invention cap. Example 1 It is a side view which shows the state after opening of this invention cap. Example 1

Explanation of symbols

2 ... Sealing tube, 3 ... Inside plug, 4 ... Cap body, 12 ... Mouth and neck, 12a ... Small outer diameter part,
12b: Large outer diameter portion, 14: First thread, 21: Window hole, 22: Narrow part, 30 ... Outer cylinder, 31 ... Flange, 32 ... Inner cylinder, 34 ... Closure plate, 37 ... Guide groove, 40 ... Peripheral wall, 40a… large inner diameter part, 40b… small inner diameter part,
41 ... Top plate, 42 ... Discharge cylinder, 43 ... Cutting blade, 44 ... Second thread, 45 ... Sliding projection, B ... Container body

Claims (2)

The container body (B) erected via the taper-shaped shoulder (11) that is reduced in diameter is fitted to the outer periphery of the mouth neck (12) to prevent it from slipping out and easily cut up and down. A sealing cylinder (2) having a window hole (21) defining a narrow portion (22) , and a closing plate ( fitting in the container body neck and neck (12) and capable of pressing and breaking the lower end ) 34) An inner plug (3) having an inner cylinder (32) closed by 34) , a discharge cylinder (42) suspended from a top plate (41) in the inner cylinder (32) , and the sealing cylinder (2) And a cap main body (4) provided with a peripheral wall (40) at the upper side so as to be able to be screwed down, and the discharge cylinder (42) is moved into the closing plate (34) by the screwing down of the cap main body (4 ). thereby breaking removed, the sealing cylinder (2) lower end abuts with sealing tube a shoulder (11) (2) narrow the by compressive deformation of Stopper cap in, characterized in that the as configured to cut the part (22). The upper outer periphery of the mouth / neck portion (12) of the container body (B) erected through the taper-shaped shoulder portion (11) that shrinks upward is the small outer diameter portion (12a) , and the lower outer periphery is the outer periphery. diameter container body configured to (12b) (B) the large outer diameter portion (12b) with fitted to prevent coming off the outer periphery of the window defining the narrow portion of the easily cleavable (22) up and down sealing tube formed by drilled holes (21) and (2) and inner tube fitted in a circumferential the opening in the neck (12) and (32) fitted to the small outer diameter portion (12a) outer peripheral outer The cylinder (30) is connected to the flange (31) , the lower end of the inner cylinder (32) is closed with a pressure-breakable closing plate (34) , and the cylinder (30) cannot be removed from the mouth and neck (12) . a dynamic non mounted the inner plug (3), the lower inner periphery of the sealing cylinder (2) wall which is positioned above (40) to the large diameter portion (40a), the upper Together with constituting the small diameter portion (40b), and a cap body (4) which is vertically discharge tube (42) within the cylinder (32) in the from top plate (41), the outer cylinder (30) the outer periphery A sliding projection (45) projecting from the small inner diameter portion (40b ) is slidably fitted into a spiral guide groove (37 ) circumferentially provided on the outer periphery of the large outer diameter portion (12b) . 1 screw thread (14), the large inner diameter portion of the in (40a) is provided second screw threads (44), respectively the cap body (4) configured to threadedly lowerable, threadedly of the cap body (4) The discharge cylinder (42) breaks and removes the closing plate (34) by moving down, and the sealing cylinder (2) is compressed and deformed while the lower end of the sealing cylinder (2) is in contact with the shoulder (11). A cap with an inside plug, characterized in that the narrow portion (22) is cut.

Images