JP6045195B2 - Cap for container - Google Patents

Description

  The present invention relates to a cap attached to an opening of a container for storing contents such as sauce and dressing.

  Conventionally, as a container cap, it has a cylindrical part with a male threaded part on the outer periphery, and has an inner plug that closes the container mouth part, and a spout that has a spout and is screwed down to the inner plug. What is provided with the member and the obstruction board part which obstruct | occludes a cylindrical part so that fracture | rupture is possible is known (for example, refer patent document 1). The spout member is provided with a breaking cylinder that breaks the closing plate portion, and the closing plate portion is broken by a blade formed at the lower end of the breaking tube by descending as the spout member rotates. The male screw is composed of a double thread or a triple thread, so that the spout member has a large amount of movement stroke in the vertical direction with respect to the rotation angle.

  Further, the blocking plate portion is broken by the broken cylinder so that a part of the blocking plate portion remains connected to the cylindrical portion without being completely broken and separated. This prevents the closing plate portion from falling into the container.

JP 2001-171716 A

  In a conventional container cap, when it is desired to increase the amount of vertical movement of the spout member with respect to the rotation angle of the spout member, the male thread provided on the inner plug is a multiple thread such as a double thread or a triple thread. It is generally performed with a screw. When the male screw is constituted by a multi-threaded screw, when the spout member is screwed onto the inner plug, the position where the screwing is started may change. Therefore, once the closing plate portion is broken by the cutting tube of the spout member, the spout member is detached from the inner plug, and when the spout member is screwed to the inner plug again, the position where the splicing starts. If it changes, there exists a possibility that the obstruction board part may be completely cut off from the cylindrical part and fall off into the container.

  In view of the above points, an object of the present invention is to prevent the closing plate portion from being completely separated from the cylindrical portion in a container cap including an inner plug having multiple threads.

[1] In order to achieve the above object, the present invention forms a flow path for the contents contained in a container, and has a cylindrical portion having a male screw portion on the outer periphery, and a shoulder portion on the outer periphery of the cylindrical portion. An inner stopper comprising a cover portion that is continuously provided and attachable to the container mouth portion, a spout member that has a spout and is threadably engaged with the inner plug, and a spout cap that closes the spout The clogging plate is formed in the cylindrical portion so that the clogging plate can be broken, and the clogging member is broken to open the cylindrical portion when the spouting member is lowered. And a closure cap for the container formed in communication with the spout, wherein the closing plate portion is partially connected to the cylindrical portion when the breaking plate portion is completely broken by the breaking tube. The male threaded part of the cylindrical part is composed of a multi-threaded screw, the inner plug and the spout part Is provided with a drop-off prevention mechanism that engages so as to prevent the spout member from dropping from the inner plug, and the drop-off prevention mechanism is an outer periphery of the cylindrical portion and is radially outward. a first projection which projects, provided in the spout when the spout Ru is screwed into said plug, said before breakage of the closing plate part by the broken barrel Ru is started first By being engaged with one protrusion, the third protrusion is configured to prevent the spout member from falling off from the inner plug.

  According to the present invention, once the spout member is screwed onto the inner plug, the spout member cannot be removed from the inner plug by the function of the drop-off preventing mechanism. Therefore, when the spout member is accidentally dropped from the inner plug and the spout member is screwed into the inner plug again as in the prior art, the phase of the spout member and the inner plug changes, It is possible to prevent the blocking plate portion from being completely separated from the cylindrical portion and falling off into the container.

  [2] In the present invention, the spout member is rotated and lowered so that when the breakage of the closing plate portion by the broken tube is completed, the outer peripheral surface of the broken tube is opened to widen the flow path of the cylindrical portion. Thus, it is preferable that a blocking mechanism is provided that is configured to push away the closing plate portion and that prevents the spout member from rotating in a direction to return to the original position with respect to the inner plug.

  According to the present invention, since the blocking mechanism prevents the spout member from rotating in the direction to return to the original position with respect to the inner plug, the contents in the container are formed from the gap between the spout member and the inner plug. Can be prevented from leaking out. Further, after the breakage of the blocking plate portion is completed, the spout member is loosened and the cylindrical portion that has been holding the blocking plate portion is retracted, whereby the spout can be prevented from being blocked again by the blocking plate portion.

[3] In order to achieve the above object, the present onset bright forms a flow path of the contents contained in the container, a cylindrical portion having a male threaded portion on an outer peripheral shoulder portion on the outer periphery of the cylindrical portion A spigot having a spout and screwed into the spigot so that the spout can be lowered and a spout closing the spout. An outlet cap, and the cylindrical portion is formed so that a closing plate portion that closes the flow path can be broken, and the outlet portion of the outlet member is broken by the lowering of the outlet member and the cylindrical portion A container cap formed in communication with a spout, and the closing plate portion is formed when the closing plate portion is completely broken by the breaking tube. And the male threaded portion of the cylindrical portion is composed of multiple threads, and the inner plug and the note The spout member is provided with a drop-off prevention mechanism that engages the spout member so as to prevent the spout member from dropping from the inner plug, and the spout member is rotated and lowered, and the clogging by the broken cylinder is performed. When the breakage of the plate portion is completed, the closure plate portion is configured to be pushed away by the outer peripheral surface of the breakable cylinder so as to widen the flow path of the cylindrical portion. A stopper mechanism for preventing rotation in a direction to return to the original position with respect to the stopper, and the drop-off preventing mechanism and the blocking mechanism are located on an outer periphery of the cylindrical portion and below the male screw portion. The first protrusion and the second protrusion protruding outward in the radial direction and the spout member are engaged with the first protrusion, so that the spout member is separated from the inner plug. By preventing the drop and engaging with the second protrusion, The third protrusion is configured to prevent the member from rotating in a direction to return to the original position with respect to the inner plug, and three blades protruding downward are circumferentially provided at the lower end of the broken cylinder. It is characterized by being arranged at intervals .

According to the present invention, once the spout member is screwed onto the inner plug, the spout member cannot be removed from the inner plug by the function of the drop-off preventing mechanism. Therefore, when the spout member is accidentally dropped from the inner plug and the spout member is screwed into the inner plug again as in the prior art, the phase of the spout member and the inner plug changes, It is possible to prevent the blocking plate portion from being completely separated from the cylindrical portion and falling off into the container.
Further, according to the present invention, since the blocking mechanism prevents the spout member from rotating in the direction to return to the original position with respect to the inner plug, the gap between the spout member and the inner plug is removed from the inside of the container. The contents can be prevented from leaking. Further, after the breakage of the blocking plate portion is completed, the spout member is loosened and the cylindrical portion that has been holding the blocking plate portion is retracted, whereby the spout can be prevented from being blocked again by the blocking plate portion.
Further, as in the present invention, in the case where the drop prevention mechanism and the blocking mechanism are configured to be engaged, a plurality of protrusions are provided in comparison with a case where each protrusion is provided one by one. Good balance when preventing rotation of outlet member. Further, when the inner plug is molded with a mold that opens in the vertical direction, it is difficult to remove the mold unless a space is formed below each protrusion.

  At this time, the interval between the protrusions is set to be an interval of 180 degrees or less in the circumferential direction. Therefore, the rotation angle of the spout member required for breaking the closing plate portion also needs to be 180 degrees or less.

  According to the present invention, since the three blades are provided at the lower end of the broken cylinder, the rotation angle of the spout member can be suppressed to a small angle of 180 degrees or less. Moreover, the fracture | rupture part of the obstruction board part of three blades and a cylindrical part has a part which mutually overlaps. Therefore, according to the present invention, the blocking plate portion can be broken more reliably.

Sectional drawing which shows embodiment of the cap for containers of this invention. Sectional drawing which shows the state by which the obstruction board part of this embodiment was fractured | ruptured. Explanatory drawing which shows the inner stopper of this embodiment from upper direction. Explanatory drawing which shows typically the drop-off prevention mechanism and blocking mechanism of this embodiment. Explanatory drawing which shows typically the three blades of this embodiment.

  As shown in FIGS. 1 and 2, a container cap 1 according to an embodiment of the present invention forms a flow path for contents contained in a container and has a cylindrical portion 21 having a male screw portion 22 on the outer periphery, and a cylinder. The inner plug 2 is connected to the outer periphery of the portion 21 via the shoulder portion 24 and includes a cover portion 25 that can be attached to the container mouth portion V, and has a spout 31 and is screwed into the inner plug 2 so as to be lowered. A spout member 3 and a spout cap 4 that closes the spout 31 are provided. The spout cap 4 is connected to the spout member 3 via a hinge 4a.

  A blocking plate portion 23 that closes the flow path is formed in the cylindrical portion 21 so that it can be broken. The spout member 3 includes a cylindrical body 32 and a top plate 33 that closes the upper end of the cylindrical body 32. The top plate 33 is provided with a spout 31 that opens while gradually spreading in a trumpet shape as it goes upward. In addition, the spout member 3 is formed with a broken cylinder 35 that communicates with the spout 31 to break the blocking plate portion 23 and open the cylindrical portion 21 as the spout member 3 descends. A female screw 32 a is formed on the inner peripheral surface of the cylindrical body 32.

  The male screw portion 22 of the cylindrical portion 21 is constituted by a double thread. The male screw portion 22 is not limited to a double thread, and may be composed of other multiple threads such as a triple thread.

  A strip-like body 26 that can be cut off is provided on the upper surface of the shoulder portion 24. The spout member 3 is provided with a flange portion 34 that extends radially outward. The lower surface of the flange portion 34 abuts against the upper end edge of the belt-like body 26, so that the spout member 3 is prevented from descending. Thereby, it can prevent that the spout member 3 falls | descends unintentionally and the obstruction board part 23 fractures | ruptures and it is plugged.

  On the outer periphery of the cylindrical portion 21, a first protrusion 51 and a second protrusion 52 that are positioned below the male screw portion 22 and protrude outward in the radial direction have an interval of 180 ° in the circumferential direction. Two are provided. The first protrusion 51 extends longer than the second protrusion 52 upward. Further, the lower ends of the first protrusion 51 and the second protrusion 52 extend to the lower end of the cylindrical portion 21.

  A third protrusion 53 that protrudes inward in the radial direction is provided at the lower end portion of the inner peripheral surface of the tubular body 32 of the spout member 3. Two third protrusions 53 are also provided with an interval of 180 °. When the spout member 3 is screwed onto the inner plug 2, the third protrusion 53 of the spout member 3 gets over the gentle inclined surface of the first protrusion 51.

  As shown in FIG. 3, when the third protrusion 53 gets over the first protrusion 51, even if the spout member 3 tries to rotate in the opposite direction, the third protrusion 53 is not in contact with the first protrusion 51. Engaging with the step surface (surface perpendicular to the peripheral surface of the cylindrical portion 21), it is possible to prevent the spout member 3 from falling off the inner plug 2. In the present embodiment, the mechanism in which the first protrusion 51 and the third protrusion 53 engage corresponds to the drop-off prevention mechanism of the present invention.

  When the spout member 3 is rotated and lowered, and the breakage of the closing plate portion 23 by the breaking cylinder 35 is completed, the closing plate portion 23 remains partly connected to the cylindrical portion 21. It is configured. Further, as shown in FIG. 2, the closing plate portion 23 is configured to be pushed away by opening the lid on the outer peripheral surface of the broken cylinder 35 in order to widen the flow path of the cylindrical portion 21.

  In addition, the third protrusion 53 of the spout member 3 gets over the gentle inclined surface of the second protrusion 52. And as shown in FIG. 3, even if the spout member 3 tries to rotate in the opposite direction, the 3rd protrusion 53 is the level | step difference surface of the 2nd protrusion 52 (surface perpendicular | vertical with respect to the surrounding surface of the cylindrical part 21). And the spout member 3 is prevented from rotating in a direction to return to the original position with respect to the inner plug 2. In the present embodiment, the mechanism in which the second protrusion 52 and the third protrusion 53 are engaged corresponds to the blocking mechanism of the present invention.

  Three blades 35 a, 35 b, and 35 c that protrude downward are disposed at the lower end of the broken cylinder 35 at intervals in the circumferential direction. In this embodiment, the space | interval between blade 35a, 35b, 35c is set so that it may become 180 degrees, 90 degrees, and 90 degrees, as shown to Fig.5 (a).

  In order to break the closing plate portion 23 of the container cap 1 of the present embodiment, first, the belt-like body 26 is removed. Thereby, the spout member 3 can be lowered by rotating the spout member 3. In this state, as shown in FIG. 4, when the spout member 3 is rotated, the closing plate portion 23 is broken from the cylindrical portion 21 by the blades 35 a, 35 b, and 35 c of the broken cylinder 35. With the blades 35a, 35b, and 35c of the broken cylinder 35, the connection portion A (see FIGS. 2 and 5B) in which a part of the closing plate portion 23 and the cylindrical portion 21 are connected remains. The breaking of the closing plate portion 23 by the breaking cylinder 35 is completed. At this time, as shown in FIG. 2, the closing plate portion 23 is pushed away by the outer peripheral surface of the broken cylinder 35, so that the flow path 21 a in the cylindrical portion 21 and the broken cylinder 35 is largely opened.

  At this time, the second protrusion 52 and the third protrusion 53 are engaged with each other, and the rotation in the direction in which the spout member 3 returns to the original position is prevented. Accordingly, the spout member 3 moves unintentionally and prevents the blocking plate portion 23 held by the broken cylinder 35 from being pushed by the flow of the contents in the container and blocking the cylindrical portion 21. it can.

  According to the container cap 1 of the present embodiment, once the spout member 3 is screwed onto the inner plug, the drop cap prevention mechanism including the first protrusion 51 and the third protrusion 53 is used to Since the first protrusion 51 and the third protrusion 53 are engaged with each other to prevent the spout member 3 from rotating in the direction of dropping, the spout member 3 cannot be removed from the inner plug 2. be able to. Accordingly, when the spout member 3 is accidentally dropped from the inner plug 2 and is screwed again as in the prior art, the position at which the spout member 3 begins to be screwed into the inner plug 2 changes, thereby closing the plug. The plate part 23 is completely separated from the cylindrical part 21, and the closing plate part 23 can be prevented from falling into the container.

  In the present embodiment, since each of the first protrusion 51, the second protrusion 52, and the third protrusion 53 is provided two by one, only one protrusion 51, 52, 53 is provided. Compared to the case, the force applied when blocking the rotation of the spout member 3 can be dispersed in a balanced manner.

  Further, the lower ends of the first protrusion 51 and the second protrusion 52 extend to the lower end of the cylindrical portion 21. For this reason, it is not necessary to form a space below the first protrusion 51 and the second protrusion 52, and when the inner plug 2 is molded with a mold that opens in the vertical direction, the inner plug 2 can be easily removed. Thus, the inner plug 2 can be easily manufactured. At this time, since the interval between the protrusions 51 and 52 is 180 °, the rotation angle is 180 ° or less so that the third protrusion 53 does not get over the first protrusion 51 once overridden again. It is necessary to complete the breaking of the closing plate portion 23 by rotating the spout member 3.

  In the present embodiment, three blades 35 a, 35 b, and 35 c that are circumferentially arranged at intervals of 180 °, 90 °, and 90 ° are provided at the lower end of the fracture cylinder 35. Each blade 35a, 35b, 35c is formed in a trapezoidal shape so as to be gradually tapered toward the tip. Therefore, the breakage of the closing plate portion 23 can be completed by rotating the spout member 3 at a rotation angle of 180 ° or less (for example, 145 °).

  FIG. 5B shows a first break locus C1 that is a break locus of the first blade 35a, a second break locus C2 that is a break locus of the second blade 35b, and a third break locus that is a break locus of the third blade 35c. C3 is shown. As shown in FIG. 5B, the broken portions of the closing plate portion 23 and the cylindrical portion 21 of the three blades 35a, 35b, and 35c have a portion X that overlaps each other. Therefore, according to the present embodiment, the closing plate portion 23 can be broken more reliably.

  The lower end of the cylindrical body 32 enters the annular groove 24a that is recessed downward at a position radially inward of the portion of the shoulder portion 24 where the belt-like body 26 is provided when the breakage of the closing plate portion 23 is completed. . Thereby, the dimension of the up-down direction of the cap 1 for containers can be made small, and size reduction of the cap 1 for containers can be achieved.

  In the present embodiment, the case where the intervals between the blades 35a, 35b, and 35c are 180 °, 90 °, and 90 ° has been described. However, the interval between the blades of the present invention is not limited to this.

DESCRIPTION OF SYMBOLS 1 ... Container cap, 2 ... Inner plug, 21 ... Cylindrical part, 21a ... Flow path, 22 ... Male screw part (double thread), 23 ... Closure board part, 24 ... Shoulder part, 24a ... Annular groove, 25 ... Cover part, 26 ... strip-like body, 3 ... spout member, 31 ... spout, 32 ... cylindrical body, 32a ... female screw, 33 ... top plate, 34 ... flange part, 35 ... broken cylinder, 35a ... first blade 35b ... second blade, 35c ... third blade, 4 ... spout cap, 4a ... hinge, 51 ... first projection, 52 ... second projection, 53 ... third projection, X ... overlapping portion, V ... container opening, C1 ... first break locus, C2 ... second break locus, C3 ... third break locus, A ... connection portion.

Claims (3)

A cylindrical portion having a male threaded portion on the outer periphery, forming a flow path for the contents contained in the container, and a cover portion connected to the outer periphery of the cylindrical portion via a shoulder, and attachable to the container mouth portion; A plug made of
A spout member that has a spout and is threadably engaged with the inner plug;
A spout cap for closing the spout,
The cylindrical part is formed so that a closing plate part that closes the flow path can be broken,
The spout member is a container cap formed by communicating with the spout, a broken cylinder for breaking the closing plate part and opening the cylindrical part as the spout member descends,
The closing plate portion is in a state in which a part of the closing portion is connected to the cylindrical portion when the breaking of the closing plate portion by the breaking cylinder is completed.
The male thread part of the cylindrical part is composed of multiple threads,
The inner stopper and the spout member are provided with a drop-off prevention mechanism that engages so as to prevent the spout member from dropping from the inner stopper,
The captive is a periphery of the cylindrical portion, a first projection projecting radially outwards, is provided in the spout when the spout Ru is screwed into said plug by engaging the first projection before the breaking of the closing plate part by the broken barrel Ru is started, and a third protrusion prevents falling off from the in plug of the pouring device Cap for container characterized by being made. The container cap according to claim 1,
When the spout member is rotated and lowered, and the breakage of the blocking plate portion by the broken tube is completed, the blocking plate is formed on the outer peripheral surface of the broken tube so as to widen the flow path of the cylindrical portion. Configured to push the part away,
A container cap comprising a blocking mechanism for blocking rotation of the spout member in a direction to return to the original position with respect to the inner plug. A cylindrical portion having a male threaded portion on the outer periphery, forming a flow path for the contents contained in the container, and a cover portion connected to the outer periphery of the cylindrical portion via a shoulder, and attachable to the container mouth portion; A plug made of
A spout member that has a spout and is threadably engaged with the inner plug;
A spout cap for closing the spout,
The cylindrical part is formed so that a closing plate part that closes the flow path can be broken,
The spout member is a container cap formed by communicating with the spout, a broken cylinder for breaking the closing plate part and opening the cylindrical part as the spout member descends,
The closing plate portion is in a state in which a part of the closing portion is connected to the cylindrical portion when the breaking of the closing plate portion by the breaking cylinder is completed.
The male thread part of the cylindrical part is composed of multiple threads,
The inner stopper and the spout member are provided with a drop-off prevention mechanism that engages so as to prevent the spout member from dropping from the inner stopper,
When the spout member is rotated and lowered, and the breakage of the blocking plate portion by the broken tube is completed, the blocking plate is formed on the outer peripheral surface of the broken tube so as to widen the flow path of the cylindrical portion. Configured to push the part away,
A blocking mechanism that prevents the spout member from rotating in a direction to return to the original position with respect to the inner plug ;
The drop-off prevention mechanism and the blocking mechanism are a first protrusion and a second protrusion protruding outward in the radial direction at a position lower than the male screw portion on an outer periphery of the cylindrical portion, and the note. The outlet member is provided on the outlet member and engaged with the first protrusion to prevent the outlet member from falling off the inner plug, and by engaging with the second protrusion, the outlet member is It is composed of a third protrusion that prevents rotation in a direction to return to the original position with respect to the inner plug,
A container cap, wherein three blades projecting downward are arranged at intervals in the circumferential direction at a lower end of the broken cylinder.

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