JP2011235944A - Cap for squeeze container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cap for a squeeze container capable of effectively preventing the leakage or dripping of a content liquid before squeezing a container body and capable reducing a time taken from the squeezing of the container body until the discharge of the content liquid and a time taken for collecting the content liquid remaining in a trap room.SOLUTION: The cap 10 for the squeeze container attached to an opening neck 12a of the container body 12 which can be deformed by squeezing, and discharges the content liquid from a discharge opening 13a at the tip of a pouring nozzle 19 is provided with the trap room 14 for storing liquid with a hollow bottomed tube 15 at the lower surface side of a top surface 10a from which the pouring nozzle 19 rises. An inflow/outflow opening 17 for the content liquid between the container body 12 and the trap room 14 is formed at the bottom 15a of the bottomed tube 15, and a raised bottom 18 which is higher than the bottom surface 15b in a region including a part that is immediately below the pouring opening 16 to the pouring nozzle 19 is formed at the bottom 15a of the bottomed tube 15.

Description

  The present invention relates to a squeeze container cap, and more particularly to a squeeze container cap that is used by being attached to a mouth portion of a container body made of plastic that can be squeezed.

  The squeeze container is a container that deforms the container body by squeezing (squeezing) the body of the container body by hand, and discharges a predetermined amount of liquid from the discharge port at the tip of the nozzle toward the discharge location. is there. In many cases, the squeeze container is usually used by detachably attaching a cap having a pouring nozzle to the mouth of the container body made of plastic that can be squeezed so that the content liquid can be replenished or replaced. In such a squeeze container, for example, after removing the outer lid covering the discharge port at the tip of the dispensing nozzle, the container body is squeezed with the gripper squeezed container tilted or inverted and the discharge port directed toward the discharge location. By doing so, a predetermined amount of the content liquid is discharged.

  When such a squeezed container is released from the squeezed state, the deformation of the container body returns to its original state, and the inside becomes negative pressure. The content liquid remaining around the outlet can be pulled back into the container body.

  On the other hand, when the squeeze container is tilted or inverted by gripping the body part of the container body, the content liquid can reach the tip of the dispensing nozzle without squeezing the container body due to the internal pressure of the container body or the weight of the content liquid. Leakage or dripping from the discharge port may occur. Such unexpected leakage or dripping of the contents can cause dirt on the exterior of the squeeze container and dirt on the hands during use. In addition, a technique for preventing leakage of content liquid and dripping of liquid by providing a trap room for collecting liquid by a hollow bottomed cylinder has been developed (see, for example, Patent Document 1).

JP 2003-226377 A

  In Patent Document 1, a liquid inflow hole for allowing the content liquid to flow into the trap room when the content liquid is poured out is located near the upper end of the peripheral wall portion of the bottomed cylindrical body provided on the lower surface side of the top surface portion of the cap. A plurality of openings are formed at intervals in the circumferential direction, and a small-diameter liquid return hole for returning the content liquid remaining in the trap room to the container body is opened at one position near the lower end of the peripheral wall portion. Is formed. Also, the pouring nozzle standing from the top surface of the cap also projects to the lower surface side of the top surface, and the lower end surface of this projecting portion opens as a spout. In the upright state, it is set to be positioned above the spout on the lower end surface of the protruding portion.

  And in patent document 1, at the time of use of a squeeze container, while holding this in an inverted state and pressing a container main body, the contents liquid flows into a trap room via a liquid inflow hole, The inflowing content liquid is accumulated beyond the spout at the lower end surface of the protruding portion of the inverted spout nozzle, and is discharged from the spout from the spout through the spout nozzle for the first time. As a result, it is possible to effectively avoid leakage and dripping of the content liquid before squeezing the container body.

  Moreover, in patent document 1, when the squeeze container is returned to the upright state after the content liquid is poured out, the content liquid remaining in the trap room is formed with a small diameter formed near the lower end of the peripheral wall portion of the bottomed cylindrical body. The liquid return hole is returned to the inside of the container body.

  However, the cap used by being attached to the squeeze container of Patent Document 1 can effectively avoid unexpected leakage and dripping of liquid before the container body is squeezed due to the presence of the trap room. Since it is a hollow part of considerable size, for example, it takes too much time for the content liquid to be discharged from the discharge port of the dispensing nozzle after squeezing the container body, or the content liquid remaining in the trap room Various troubles such as taking too much time to be collected in the container main body are caused.

  In particular, when the container body is squeezed and used without tilting the squeeze container upside down, the liquid content will not easily flow into the trap room. The time until the liquid is discharged further increases.

  The present invention can effectively avoid leakage and dripping of the contents before squeezing the container body by effectively using the trap room which is a hollow part having a considerable size, and the contents after squeezing the container body The purpose is to provide a cap for a squeeze container that can improve the ease of use by shortening the time until the liquid is discharged and the time for collecting the content liquid remaining in the trap room to the container body. To do.

  The present invention is a cap for a squeeze container that is used by being attached to a mouth part of a container body made of a plastic that can be deformed by squeeze, and that discharges the content liquid from the discharge port at the tip of the dispensing nozzle by squeeze deformation of the body part of the container body Then, on the lower surface side of the top surface portion where the pouring nozzle of the cap is erected, a trap room for collecting liquid by a hollow bottomed cylinder is provided, and at the bottom of the bottomed cylinder, An inflow / outflow port serving also as an inflow port and an outflow port for the content liquid between the container main body and the trap room is formed as an opening, and a bottom portion of the bottomed cylindrical body has a spout port for the spout nozzle. The above object is achieved by providing a cap for a squeeze container in which a raised bottom portion that is higher than the bottom surface is formed in a region including a directly lower portion.

  According to the squeeze container cap of the present invention, it is possible to effectively avoid leakage and dripping of the liquid content before squeezing the container body by effectively using the trap room which is a hollow part of a considerable size, and the container It is possible to improve the ease of use by shortening the time from when the main body is squeezed until the content liquid is discharged and the time when the content liquid remaining in the trap room is collected in the container main body.

It is sectional drawing of the squeeze container which attached the cap for squeeze containers which concerns on preferable 1st Embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS (a) of a bottomed cylinder which comprises the squeeze container cap which concerns on 1st Embodiment of this invention is sectional drawing, (b) is a perspective view. It is a schematic sectional drawing of the cap for squeeze containers explaining the condition which squeezes a container main body and pours out a content liquid from a spout to an extraction nozzle via a trap room. (A) of a bottomed cylinder which comprises the squeeze container cap which concerns on 2nd Embodiment of this invention is sectional drawing, (b) is a perspective view. (A) of a bottomed cylinder which comprises the cap for squeeze containers which concerns on 3rd Embodiment of this invention is sectional drawing, (b) is a perspective view. FIG. 6 is a schematic cross-sectional view of a squeeze container cap for explaining a situation in which a content liquid is poured from a spout into a spout nozzle through a trap room with a bottomed cylindrical body in FIG. 5. (A) of a bottomed cylinder which comprises the squeeze container cap which concerns on 4th Embodiment of this invention is sectional drawing, (b) is a perspective view. (A) of a bottomed cylinder which comprises the squeeze container cap which concerns on 5th Embodiment of this invention is sectional drawing, (b) is a perspective view. (A) which illustrates the bottomed cylindrical body of another form is sectional drawing, (b) is a perspective view. (A) which illustrates the bottomed cylindrical body of another form is sectional drawing, (b) is a perspective view. (A) which illustrates the bottomed cylindrical body of another form is sectional drawing, (b) is a perspective view. (A) which illustrates the bottomed cylindrical body of another form is sectional drawing, (b) is a perspective view. (A) which illustrates the bottomed cylindrical body of another form is sectional drawing, (b) is a perspective view. (A) which illustrates the bottomed cylindrical body of another form is sectional drawing, (b) is a perspective view.

  The present invention will be described below based on preferred embodiments with reference to the drawings. FIG. 1 is a cross-sectional view of a squeeze container 11 to which a squeeze container cap 10 according to a preferred first embodiment of the present invention is attached. As shown in FIG. 1, the squeeze container cap 10 is used by being attached to a mouth part 12 a of a container body 12 made of plastic that can be squeezed. The squeeze container cap 10 has a pouring nozzle 19 having a discharge port 13a formed at the tip, and the user holds the trunk 12b of the container body 12 to tilt or invert the squeeze container 11. Then, after the discharge port 13a at the tip of the pouring nozzle 19 is directed to the discharge location, the body portion 12b of the container body 12 is squeezed (squeezed) and the container body 12 is deformed, so that the liquid content can be removed from the body portion 12b. The liquid can be delivered to the dispensing nozzle 19 of the cap 10 and discharged from the discharge port 13a by a predetermined amount. In addition, the squeeze container cap 10 includes a trap room 14 for collecting liquid on the lower surface side of the top surface portion 10a, so that the discharge port 13a of the pouring nozzle 19 is directed to the discharge location, and then the body portion of the container body 12 Before the squeeze 12b, the content liquid can be prevented from leaking or dripping from the discharge port 13a due to the internal pressure of the container body 12 or the weight of the content liquid. Furthermore, the squeeze container cap 10 has a function of smoothly discharging the content liquid when the body 12b is squeezed, and a function of smoothly recovering the content liquid remaining in the trap room 14 to the container body 12. Prepare.

  That is, the squeeze container cap 10 according to the first embodiment is used by being attached to the mouth part 12a of the container body 12 made of plastic that can be squeezed and deformed by squeeze deformation of the body part 12b of the container body 12. 19 is a cap that discharges the content liquid from the discharge port 13a at the tip of 19. The squeeze container cap 10 is provided with a trap room 14 for collecting liquid by a hollow bottomed cylindrical body 15 on the lower surface side of the top surface portion 10a where the pouring nozzle 19 of the cap 10 is erected. Further, an inflow / outflow port 17 serving as an inflow port and an outflow port for the content liquid between the container body 12 and the trap room 14 is formed in the bottom portion 15 a of the bottomed tube body 15. As shown in FIGS. 2A and 2B, the bottom 15 a is formed with a raised bottom 18 that is higher than the bottom 15 c in a region including a portion immediately below the spout 16 to the spout nozzle 19. Yes.

  Further, in the squeeze container cap 10 of the first embodiment, the spout 16 to the spout nozzle 19 is formed in the central portion of the top surface portion 10a (see FIG. 1). It is formed as a stepped portion extending in a diametrical direction through a portion directly below the central portion of the top surface portion 10a (see FIG. 2B).

  Further, in the squeeze container cap 10 according to the first embodiment, as shown in FIG. 1, the outlet 16 to the outlet nozzle 19 is an inner protruding portion of the outlet nozzle 19 protruding to the lower surface side of the top surface portion 10a. It opens as a lower end opening of 19a, and the inflow / outflow ports 17 are respectively formed on the bottom surfaces 15c on both sides of the raised bottom portion 18 of the bottom portion 15a.

  The content liquid that can be stored in the container body 12 of the present invention includes a liquid composition that is used by measurement, and examples thereof include a liquid cleaning agent for clothing, a softening agent, a bleaching agent, and a liquid bath agent. Moreover, liquid foodstuffs, such as cooking oil and a seasoning, may be sufficient.

  In the first embodiment, the container body 12 is a flexible bottle-shaped plastic container that can be deformed by squeeze, and as shown in FIG. It consists of a mouth part 12a formed so as to protrude upward from the upper end part of 12b and having an upper end serving as an opening surface. A squeeze container cap 10 is detachably attached to the mouth portion 12a through various known screwing means and fitting means. Moreover, the container main body 12 can be easily formed using, for example, various known synthetic resins by, for example, blow molding.

  The squeeze container cap 10 is, for example, a plastic molded product, and includes a circular top surface portion 10a and an annular skirt-shaped peripheral wall portion 10b extending downward integrally from the peripheral portion of the top surface portion 10a. Consists of. The top surface portion 10a is provided with a pouring nozzle 19 protruding upward from the central portion thereof. In this embodiment, the pouring nozzle 19 is a cylindrical nozzle having an inner diameter of, for example, about 6 mm, and stands vertically from the top surface portion 10a, and the lower end portion protrudes to the lower surface side beyond the top surface portion 10a. Thus, the inner protruding portion 19a is formed. The hollow interior of the dispensing nozzle 19 serves as a discharge channel 13 for dispensing the content liquid. A discharge port 13a is formed at the tip of the pouring nozzle 19, and a spout 16 is formed at the lower end of the inner protruding portion 19a as a circular opening having an inner diameter of about 6 mm, for example.

  In addition, the discharge port 13a of the pouring nozzle 19 can be appropriately closed by various known lids (not shown) that can be opened and closed.

  Further, the annular skirt-shaped peripheral wall portion 10b of the squeeze container cap 10 is provided with, for example, an internal thread protrusion on the inner surface, and the internal thread protrusion is, for example, the outer periphery of the mouth portion 12a of the container body 12. The cap 10 is detachably attached to the mouth portion 12a by being screwed onto a male screw protrusion provided on the surface. Further, a mounting sleeve 20 that is concentrically disposed inside the peripheral wall portion 10b and projects downward from the lower surface of the top surface portion 10a is integrally provided. By mounting and locking the hollow bottomed cylindrical body 15 so as to be fitted from below on the inner side of the mounting sleeve 20, a trap room 14 for collecting liquid is formed on the lower surface side of the top surface portion 10a. . The mounting sleeve 20 may have a structure in which an annular sleeve, a plurality of locking ribs, and the like arranged concentrically on the peripheral wall portion 10b are continuously arranged in a sleeve shape in the circumferential direction. Further, a locking rib that locks the peripheral edge of the lower end of the mounting sleeve 20 when the lower cylinder 15 is fitted may be provided on the inner surface of the lower end of the mounting sleeve 20.

  As shown in FIGS. 2A and 2B, the bottomed cylinder 15 for forming the trap room 14 is, for example, a plastic molded product and can be in close contact with the inner peripheral surface shape of the mounting sleeve 20. A cylindrical peripheral wall portion 15b having a diameter of, for example, about 30 mm and a height of, for example, about 10-20 mm, and a bottom portion 15a in which an inflow / outflow port 17 is formed are integrally formed. This is a hollow mounting member whose upper end is an open surface. The diameter and height of the bottomed cylinder 15 are, for example, the retentivity of the content liquid in the trap room 14, the squeeze property of the container body 12, the volume of the content liquid to be discharged by one squeeze operation, and the container body. It can be determined from the relationship with the inner diameter of the 12 mouth parts 12a.

  In the first embodiment, the bottom portion 15a of the bottomed cylindrical body 15 has a step in which a raised bottom portion 18 having a rectangular cross-sectional shape is formed one step higher than the bottom surfaces 15c on both sides across the central portion in the diameter direction. It is provided as a part. The width B of the raised bottom portion 18 having a rectangular cross-sectional shape is preferably the same as or slightly wider than the diameter of the spout 16. For example, if the inner diameter of the spout 16 is about 6 mm, the diameter of the bottomed cylinder 15 is about 30 mm, and the height is 10 to 20 mm, the raised bottom portion 18 has a width B of about 6 to 10 mm and a height. H can be provided as a rectangular cross-sectional shape of about 5 to 10 mm. Moreover, the space | interval P (refer FIG. 1) between the spout 16 opened as a lower end opening of the inner side protrusion part 19a of the pouring nozzle 19 and the upper surface of the raising bottom part 18 of the directly lower part is 3-3 for example. It is in the state of being squeezed up and down so as to be about 10 mm.

  Further, in the first embodiment, on the flat bottom surfaces 15c that are one step lower than the raised bottom portion 18 on both sides of the raised bottom portion 18, for example, a circular inflow / outflow port is provided at the peripheral portion adjacent to the cylindrical peripheral wall portion 15b. 17 are disposed at both ends in the diametrical direction perpendicularly intersecting the raised bottom portion 18 and each has an opening.

  Here, in the first embodiment, the total opening area of the two inflow / outflow ports 17 formed in the bottom portion 15 a of the bottomed cylindrical body 15 is 25 of the opening area of the spout 16 to the spout nozzle 19. It is preferable that the size is ˜300%. If the opening area of the inflow / outflow port 17 formed in the bottom portion 15a of the bottomed cylindrical body 15 is too large compared to the opening area of the spout 16, a large amount of content liquid easily flows from the container body 12 into the trap room 14. Thus, the liquid storage function by the trap room 14 is not sufficiently exhibited. If the opening area of the inflow / outflow port 17 is too small compared to the opening area of the spout 16, it becomes difficult for the content liquid to flow into the trap room 14, and the content liquid can be smoothly discharged even if the container body 12 is squeezed. In addition, the content liquid remaining in the trap room 14 cannot be smoothly collected by the container body 12. By setting the ratio of the total opening area of the inflow / outflow port 17 and the opening area of the spout 16 to the above range, the liquid storage function by the trap room 14 to be described later and the content liquid when the container body 12 is squeezed smoothly The function of discharging and the function of smoothly collecting the content liquid remaining in the trap room 14 in the container body 12 can be effectively exhibited in a balanced manner. From this viewpoint, the total opening area of the inflow / outflow port 17 is more preferably 75 to 200% with respect to the opening area of the spout 16 and is preferably 100 to 150%. Is particularly preferred.

  According to the squeeze container cap 10 of the first embodiment having the above-described configuration, the content liquid before the container body 12 is squeezed by effectively using the trap room 14 that is a hollow part having a considerable size. Leakage and dripping can be effectively avoided, and the time from when the container body 12 is squeezed until the contents liquid is discharged, and the contents liquid remaining in the trap room 14 are collected in the container body 12. It is possible to shorten the time taken to improve the usability.

  That is, according to the squeeze container cap 10 of the first embodiment, the trap room 14 with the bottomed cylindrical body 15 is provided on the lower surface side of the top surface portion 10 a, and the inflow flows into the bottom portion 15 a of the bottomed cylindrical body 15. The outlet 17 is formed with an opening, and the bottom 15a of the bottomed cylinder 15 is formed with a raised bottom 18 that is higher than the bottom 15b in a region including the portion directly below the spout 16 to the spout nozzle 19. ing. Thus, when the squeeze container 11 is used, for example, when the content liquid is discharged by squeezing the container main body 12 with the pouring nozzle 19 disposed and tilted downward, the squeeze container 11 is tilted. For a short period of time, for example, about 1 to 3 seconds before squeezing, as shown in FIG. 3, the content liquid directed from the container body 12 to the pouring nozzle 19 is passed through the inflow / outflow port 17 at an appropriate flow rate. Into the trap room 14 which is a hollow part having a considerable size, and can be retained once. Therefore, an unexpected content liquid due to the internal pressure of the container body 12 or the self-weight of the content liquid. It is possible to effectively avoid leakage and dripping.

  In addition, when the container body 12 is squeezed, the content liquid flows into the trap room 14 through the inflow / outflow port 17 at an appropriate flow rate, and a considerable amount of the liquid already stays in the trap room. In addition, since the raised bottom portion 18 is formed in the region immediately below the spout 16 to the spout nozzle 19, the interval P between the bottom portion 15a of the portion directly below the spout 16 is narrowed in the vertical direction. Therefore, the inner solution that has flowed into the trap room easily forms an inflow path toward the spout 16 and quickly flows into the spout 16, thereby discharging the spout nozzle 19. The content liquid can be smoothly discharged through the flow path 13 and the discharge port 13a.

  Furthermore, if the squeeze operation is released and the squeeze container 11 is returned to the upright state, the content liquid remaining in the trap room 14 is raised in the region immediately below the spout 16 to the spout nozzle 19 to form a bottom 18. As a result, it smoothly flows down toward the inflow / outflow port 17 disposed on the bottom surface 15c of the bottom portion 15a, and is smoothly recovered to the container body 12 from the inflow / outflow port 17 having a considerable opening area. Will be.

  In the first embodiment, the raised bottom 18 is formed in the region immediately below the spout 16 to the spout nozzle 19, so that the content liquid is a kind of detour along the raised bottom 18 from the inflow outlet 17. In addition to flowing into the spout 16 via the flow path, the position of the inflow / outlet 17 is inevitably disposed at a position shifted from the spout 16 in plan view. For example, even when the container 11 is tilted at a steep inclination or upside down, it is possible to avoid the flow of the content liquid directly from the inflow / outflow port 17 to the spout 16. The liquid storage function by the trap room 14 can be exhibited more effectively.

  Furthermore, in the first embodiment, since the spout 16 to the spout nozzle 19 is opened as the lower end opening of the inner projecting portion 19a of the spout nozzle 19 that projects to the lower surface side of the top surface portion 10a. Since the content liquid that has flowed in from the outlet 17 does not flow directly toward the spout 16 but remains in the trap room 14 and is discharged, the dripping can be suppressed.

  4 (a) and 4 (b) show a bottomed cylindrical body 21 for forming a trap room 14 on the lower surface side of the top surface portion 10a, which constitutes a squeeze container cap according to a second embodiment of the present invention. Is. According to the second embodiment, the squeeze container cap has the same configuration as that of the squeeze container cap 10 of the first embodiment except for the bottomed cylinder 21. A configuration substantially similar to the bottomed cylindrical body 15 of the first embodiment is provided. That is, in the second embodiment, the bottomed cylindrical body 21 is a hollow mounting member in which the bottom 21a and the cylindrical cylindrical peripheral wall 21b are integrally formed, and the raised bottom 18 extends in a band shape in the diameter direction. It is formed as a stepped portion. And in this 2nd Embodiment, the inflow / outflow port 22 is not formed in the bottom face 21c, but each side surface 18a of the both sides of the raising bottom part 18 is opening-formed in the side surface base end part which is a part close | similar to the bottom face 21c. Has been.

  The squeeze container cap of the second embodiment also has the same effects as the squeeze container cap 10 of the first embodiment, and the inflow / outflow port 22 opens at the side base end of the raised bottom 18. As a result, the content liquid that has flowed in from the inflow / outflow port 22 is formed in the bottomed cylindrical body 21 so as to circulate along the raised bottom portion 18, thereby comparing with the first embodiment. A balance between the liquid storage function by the trap room 14, the function of smoothly discharging the content liquid when the container body 12 is squeezed, and the function of smoothly recovering the content liquid remaining in the trap room 14 to the container body 12 It can be used well.

  FIGS. 5A and 5B show a bottomed cylindrical body 23 for forming the trap room 14 on the lower surface side of the top surface portion 10a, which constitutes the squeeze container cap according to the third embodiment of the present invention. Is. According to the third embodiment, the squeeze container cap has the same configuration as the squeeze container cap 10 of the first embodiment except for the bottomed cylinder 23. A configuration substantially similar to that of the bottomed cylindrical body 21 of the second embodiment is provided. That is, in the second embodiment, the bottomed cylindrical body 23 is a hollow mounting member in which the bottom 23a and the cylindrical cylindrical peripheral wall 23b are integrally formed, and the raised bottom 18 extends in a band shape in the diameter direction. An inflow / outflow port 22 is formed at a side base end portion that is a portion close to the bottom surface 23 c of the side surface 18 a on both sides of the raised bottom portion 18, and is formed as a stepped portion to be protruded from the raised bottom portion 18 to the inside of the pouring nozzle 19. A barrier 24 is provided in a portion between one inflow / outflow port 22 and the spout 16, standing up to a height position exceeding the lower end opening (spout 16) of the portion 19 a.

  The squeeze container cap according to the third embodiment also provides the same operational effects as the squeeze container cap 10 according to the first embodiment, and a portion between the one inflow / outflow port 22 and the spout 16. Since the barrier 24 is provided on the squeeze container 11, the squeeze container 11 is tilted so that one of the inlet / outlet ports 22 on the side where the barrier 24 is provided is disposed on the upper side as shown in FIG. When the squeeze 12 is squeezed, the flow of the content liquid directly directed from the one inflow / outflow port 22 to the spout 16 is blocked by the barrier 24, so that the unexpected content liquid before the squeeze container 11 is squeezed. Leakage and dripping can be avoided more effectively.

  FIGS. 7A and 7B show a bottomed cylindrical body 25 for forming the trap room 14 on the lower surface side of the top surface portion 10a, which constitutes the squeeze container cap according to the fourth embodiment of the present invention. Is. According to the fourth embodiment, the squeeze container cap has the same configuration as the squeeze container cap 10 of the first embodiment except for the bottomed cylinder 25. A configuration substantially similar to the bottomed cylindrical body 23 of the third embodiment is provided. That is, in the fourth embodiment, the bottomed cylindrical body 25 is a hollow mounting member in which the bottom portion 25a and the cylindrical cylindrical peripheral wall portion 25b are integrally formed, and the raised bottom portion 18 extends in a band shape in the diametrical direction. An inflow / outflow port 22 is formed at a side surface base end portion, which is a portion close to the bottom surface 25c, on the side surface 18a on both sides of the raised bottom portion 18. In addition to the provision of the barrier 24 at the portion between the two, the upper space of the raised bottom portion 18 extending in a strip shape in the diametrical direction is formed at the both ends of the cylindrical peripheral wall portion 25b of the bottomed cylindrical body 25. Since the inner peripheral surface protrudes radially inward as the inner protrusion 26 having a substantially U-shaped cross-sectional shape, the interval in the diameter direction is narrowed.

  In addition, the squeeze container cap of the fourth embodiment has the same effects as the squeeze container cap 10 of the first embodiment, and the upper space of the raised bottom portion 18 extending in a strip shape in the diametrical direction is Since the inner projecting portions 26 project at the both end portions, the diametrical interval is narrowed, so the space immediately below the spout 16 to the spout nozzle 19 is reduced, and the inside of the trap room 14 is reduced. It becomes easier to form an inflow path of the inner solution that has flowed into the outlet 16 toward the spout 16, so that the content liquid can be discharged more smoothly.

  8A and 8B show a bottomed cylindrical body 27 for forming the trap room 14 on the lower surface side of the top surface portion 10a, which constitutes the squeeze container cap according to the fifth embodiment of the present invention. Is. According to the fourth embodiment, the squeeze container cap has the same configuration as the squeeze container cap 10 of the first embodiment except for the bottomed cylindrical body 27. A configuration substantially similar to that of the bottomed cylindrical body 25 of the fourth embodiment is provided. That is, in the fifth embodiment, the bottomed cylindrical body 27 is a hollow mounting member in which the bottom portion 27a and the cylindrical cylindrical peripheral wall portion 27b are integrally formed, and the raised bottom portion 18 extends in a band shape in the diameter direction. An inflow / outflow port 22 is formed at the side base end portion, which is a portion close to the bottom surface 27c, on the side surface 18a on both sides of the raised bottom portion 18 and is formed as a stepped portion, and the raised bottom portion 18 extending in a diametrical band shape. The inner peripheral surface of the cylindrical peripheral wall portion 27b of the bottomed cylindrical body 27 protrudes radially inwardly at the both end portions of the upper space as the inner protruding portion 26 having a substantially U-shaped cross-sectional shape. In addition to the provision of the barrier 24 in the part between the outlet 16 and the spout 16, the bottom surface 27c of the bottom portion 27a of the bottomed cylindrical body 27 is lowered by one step from the raised bottom portion 18 from the cylindrical peripheral wall portion 27b side. Inflow and outflow of the side base end of the raised bottom 18 Towards 22 is an inclined surface which is inclined downward. The upper surface of the raised bottom portion 18 is also an inclined surface having a downward slope from the side where the barrier 24 is provided to the opposite side.

  The squeeze container cap of the fifth embodiment also provides the same operational effects as the squeeze container cap 10 of the first embodiment, and the bottom surface 27c of the bottom portion 27a is inclined downward toward the inflow / outflow port 22. Since the upper surface of the raised bottom portion 18 is an inclined surface, the content liquid remaining in the trap room 14 can flow more smoothly toward the inflow / outflow port 17, It becomes possible to collect the content liquid from the outlet 17 to the container body 12 more smoothly.

  The present invention is not limited to the above-described embodiments, and various modifications are possible as long as the raised bottom 18 is formed in the portion immediately below the spout 16 of the squeeze container cap. For example, the spout port to the spout nozzle does not necessarily have to be opened at the center portion of the top surface portion, and may be opened at a position shifted from the center portion.

  Further, the raised bottom portion is formed as a step portion extending in a diametrical direction through a portion immediately below the central portion, and as an aspect formed at a portion immediately below the spout 16, for example, as shown in FIGS. 9 to 14. Thus, it can be formed in other various shapes. That is, in the bottomed cylindrical body 28 shown in FIGS. 9A and 9B, the raised bottom portion 29 is formed in a region of a substantially semicircular portion at the bottom of the planar circular bottomed cylindrical body 28. In the bottomed cylindrical body 30 shown in FIGS. 10A and 10B, the raised bottom portion 31 is formed in a two-stage configuration. In the bottomed cylindrical body 32 shown in FIGS. 11A and 11B, the raised bottom 33 has a cross-sectional shape that is curved in an arc shape, and is in a region of a substantially semicircular portion at the bottom of the planar circular bottomed cylindrical body 32. Is formed. In the bottomed cylindrical body 34 shown in FIGS. 12A and 12B, the raised bottom 35 has a substantially semicircular cross-sectional shape, and is formed as a step portion extending in a strip shape in the diameter direction.

  Further, in the bottomed cylindrical body 36 shown in FIGS. 13A and 13B, the raised bottom portion 29 is a central portion of the bottom portion of the flat circular bottomed cylindrical body 36 and is a step protruding into a flat celestial cylindrical shape. It is formed as a part. In the bottomed cylindrical body 38 shown in FIGS. 14A and 14B, the raised bottom 39 has a substantially semicircular cross-sectional shape, and protrudes like a dome at the central portion of the bottom of the planar circular bottomed cylindrical body 36. Is formed. These bottomed cylindrical bodies 28, 30, 32, 34, 36, and 38 also become part of the squeeze container cap 10 similar to the above-described embodiments, and have the same effects as the above-described embodiments. Is done.

DESCRIPTION OF SYMBOLS 10 Cap for squeeze container 10a Top surface part 11 Squeeze container 12 Container main body 12a Neck part 13 Discharge flow path 13a Discharge port 14 Trap room 15, 21, 23, 25, 27, 28, 30, 32, 34, 36, 38 Bottom Cylindrical body 15a, 21a, 23a, 25a, 27a Bottom part 15b, 21b, 23b, 25b, 27b of bottomed cylindrical body Peripheral wall part 15c, 21c, 23c, 25c, 27c of bottomed cylindrical body Bottom surface of bottomed cylindrical body 16 Outlet 17 and 22 to the pouring nozzle Inflow outlet 18, 29, 31, 33, 35, 37, 39 Raised bottom 19 Outgoing nozzle 19 a Inner protruding portion 20 Mounting sleeve 24 Barrier 26 Inner protruding of bottomed cylinder Part

Claims (6)

A squeeze container cap that is used by being attached to the neck of a container body made of squeeze-deformable plastic, and discharges the content liquid from the discharge port at the tip of the dispensing nozzle by squeeze deformation of the body part of the container body,
On the lower surface side of the top surface portion where the pouring nozzle of the cap is erected, there is provided a trap room for liquid storage with a hollow bottomed cylindrical body,
An inflow / outflow port that also serves as an inflow port and an outflow port for the content liquid between the container main body and the trap room is formed in the bottom of the bottomed cylindrical body,
A squeeze container cap in which a raised bottom portion that is higher than a bottom surface is formed at a bottom portion of the bottomed cylindrical body in a region including a portion immediately below a spout to the spout nozzle. The squeeze container cap according to claim 1, wherein the inflow / outflow opening is formed in an opening at a side base end of the raised bottom. The squeeze container cap according to claim 1 or 2, wherein a spout to the pouring nozzle opens as a lower end opening of an inner projecting portion of the pouring nozzle that projects to the lower surface side of the top surface portion. The barrier is provided in the part between the said inflow-outflow port and the said spout, standing up from the said raising bottom part to the height position exceeding the lower end opening of the inner side protrusion part of the said pouring nozzle. The cap for squeeze containers as described. The spout to the pouring nozzle has an opening formed in a central portion of the top surface portion, and the raised bottom portion is formed as a step portion extending in a diametrical band shape through a portion immediately below the central portion. The squeeze container cap according to any one of claims 1 to 4. The space above the raised bottom portion extending in a strip shape in the diametrical direction is narrowed in the diametrical interval by projecting the inner peripheral surface of the bottomed cylindrical body radially inward at both end portions thereof. The squeeze container cap according to claim 5.

Images