JP5866250B2 - cap - Google Patents

Description

  The present invention relates to a cap attached to a mouth portion of a container body.

  Conventionally, after opening the cap, as shown in Patent Document 1 below, for example, as shown in Patent Document 1 below, a ring portion externally fitted to the mouth of the container body so that the cap is not detached from the container body and lost. There is known a cap that is connected to a cap body that is attached to the mouth portion and seals the mouth portion by a connecting portion.

JP 2004-307006 A

  However, in the cap described in Patent Document 1, since the cap body and the ring body are connected and integrated through the connecting portion, for example, from the production of the cap to the assembly of the container body. In the meantime, stress may act on the connecting portion to cause unauthorized deformation or the like.

  Accordingly, the present invention maintains a good usability by preventing unauthorized deformation of the connecting portion between the ring body and the cap body in a cap that is connected to the mouth of the container body by connecting the ring body and the cap body. With the goal.

As a means for solving the above-mentioned problems, the present invention provides a ring body that is externally fitted to a mouth portion of a container body that contains contents, and a mouth portion of the container body that is connected to the ring body via a connecting portion. A cap body that is detachably screwed to the coupling body, wherein the connecting portion is provided on an engagement hook portion provided on one of the ring body and the cap body and on the other side. And an engagement hole portion with which the engagement hook portion is engaged, and when the cap body is rotated in the opening direction around the cap axis with respect to the container body, the cap body is in contact with the ring body. The engagement hook portion engages with the engagement hole portion, and the cap body engages the engagement hook portion with the engagement hole portion. Around the engagement hook and engagement hole Becomes freely moving, wherein the forward and backward with respect to the mouth of the container body.

  According to this configuration, the engaging hook part and the engaging hole part of the connecting part are separated from each other and provided to the cap body and the ring body, so that a load is applied to the connecting part when the cap is assembled to the container body. A cap with excellent handleability can be easily adjusted as appropriate, such as the size of the engagement hook portion and the engagement hole portion can be easily adjusted while preventing unauthorized deformation of the coupling portion due to You can definitely get it.

In the present invention, when the engagement hook portion is configured to be movably engaged in the cap axial direction in the engagement hole portion, the cap body cap with respect to the ring body when the cap body is detached from the container body Movement in the axial direction can be allowed, and the load generated at the connecting portion can be reduced.
In the present invention, if the engagement hook portion is configured to be rotatably engaged in the engagement hole portion so as to advance and retract the cap body with respect to the mouth portion of the container body, the cap body It is possible to reduce the load on the engagement hook portion and the engagement hole, which is generated when the is rotated around the engagement hook portion and the engagement hole.

  According to the present invention, in a cap that connects the ring body and the cap body and is attached to the mouth of the container body, it is possible to prevent unauthorized deformation of the connection portion between the ring body and the cap body and maintain good usability. be able to.

It is sectional drawing which follows the cap axial direction of the principal part of the cap unopened state in embodiment of this invention. It is a top view of the cap shown in FIG. FIG. 3 is a top view corresponding to FIG. 2 in a state where the cap is rotated in the opening direction. It is sectional drawing equivalent to FIG. 1 of the state which the cap main body of the said cap removed from the container body. FIG. 2 is a cross-sectional view corresponding to FIG. 1 in a state where the cap body detached from the container body is rotated around a connecting portion.

Embodiments of the present invention will be described below with reference to the drawings. In each drawing used in the following description, the scale is appropriately changed to make each member a recognizable size.
As shown in FIG. 1, the cap 1 of this embodiment includes a ring body 2 that is rotatably fitted to the mouth portion of a container body 35 in which contents are accommodated, and a connection portion 3 connected to the ring body 2. And a cap body 4 that is screwed into the mouth of the container body 35. Hereinafter, the configuration of the cap 1 will be described with reference to the unopened state (closed state) of the cap 1 shown in FIG.

  In the present embodiment, as an example of the container body 35, a configuration in which the inner plug member 37 is attached to the container 36 will be described as an example. The mouth portion of the container body 35 in the present embodiment refers to the entire inner plug member 37. The container 36 and the inner plug member 37 are resin molded products that are integrally formed separately.

  The central axes of the inner plug member 37, the ring body 2 and the cap body 4 are located on a common axis. In the present embodiment, the common axis is indicated by a chain line as a cap axis O. Hereinafter, a direction along the cap axis O is defined as a cap axis direction, a direction orthogonal to the cap axis O is defined as a cap radial direction, and a direction around the cap axis O is defined as a cap circumferential direction. A direction from the inner plug member 37 toward the cap body 4 along the cap axis O is an upper direction, and an opposite direction is a lower direction.

The inner plug member 37 includes a cylindrical body 20 attached to the mouth portion 36 a of the container 36, and a plug body 30 disposed on the inner side in the cap radial direction of the cylindrical body 20.
The cylindrical body 20 has a lower end portion fitted into the mouth portion 36 a of the container 36 and an upper end portion projecting upward from the mouth portion 36 a of the container 36, and a cap radial direction of the seal tubular portion 21. The container 36 is formed by connecting the outer cylinder part 22 which is located outside and fits into the mouth part 36a of the container 36 (undercut fitting in the illustrated example), the seal cylinder part 21 and the upper end part of the outer cylinder part 22. An annular flange portion 23 that comes into contact with the opening end of the mouth portion 36a from above, and a dispensing cylinder portion 24 that is located on the inner side in the cap radial direction of the seal cylinder portion 21 and is connected to the upper end portion of the seal cylinder portion 21. Prepare.

A male screw portion 25 to which the cap body 4 is screwed is formed on an outer peripheral surface of a portion of the seal cylinder portion 21 protruding upward from the mouth portion 36a of the container 36. Note that the male screw portion 25 may be a multi-thread and the cap body 4 may be screwed out by only a slight rotation operation in the cap circumferential direction.
The dispensing cylinder part 24 is connected to the seal cylinder part 21 in a state where the upper end part projects upward from the upper end part of the seal cylinder part 21 and the lower end part is located above the lower end part of the seal cylinder part 21. .

  The plug body 30 includes a closing plate 31 that closes the dispensing cylinder portion 24, and a ring portion 32 that is erected on the closing plate 31 and that can be hooked with, for example, a fingertip, and is disposed so as to fit in the dispensing cylinder portion 24. Is done. The closing plate 31 is formed in, for example, a circular shape in plan view, and the outer peripheral edge portion thereof is connected to the dispensing cylinder portion 24 over the entire circumference. A weakened portion 33 that is thin over the entire circumference is formed on the outer peripheral edge of the closing plate 31, and the closing plate 31 is connected to the dispensing cylinder portion 24 through the weakened portion 33.

  The cap 1 is positioned on the outer side in the cap radial direction of the outer cylindrical portion 22 of the inner plug member 37 and is externally fitted to the outer cylindrical portion 22 so as to be movable by a predetermined amount in the cap axial direction and rotatable about the cap axis O. An annular ring body 2 and a cap-shaped cylindrical cap body 4 that is coupled to the ring body 2 via the coupling portion 3 and is screwed to the male thread portion 25 of the seal cylinder portion 21 of the inner plug member 37 are provided. . The ring body 2 and the cap body 4 are resin molded products integrally formed with each other.

  The ring body 2 has a cylindrical shape, and has a locked protrusion 5 that protrudes inward in the cap radial direction on the inner peripheral surface thereof. The locked protrusion 5 is formed, for example, in the cap axial direction intermediate portion on the outer peripheral surface of the ring body 2 over the entire periphery thereof.

  The outer tube portion 22 of the inner plug member 37 has a locking protrusion 6 that protrudes outward in the cap radial direction on the outer peripheral surface thereof. Two locking projections 6 are formed at intervals in the cap axis direction, and are formed on the outer peripheral surface of the lower portion of the outer cylinder portion 22 over the entire circumference. In the outer tube portion 22 of the inner plug member 37, the locked protrusion 5 of the ring body 2 is disposed movably in the cap axial direction at a portion located between the two locking protrusions 6.

  The cap main body 4 extends downward from the disk-shaped top wall portion 7 disposed so as to close the upper end opening of the dispensing tube portion 24 of the inner plug member 37 and the outer peripheral edge portion of the top wall portion 7. The cylindrical peripheral wall portion 8 is formed, and the diameter-enlarged portion 9 having a lower end edge that is close to the upper end edge of the ring body 2 by increasing the diameter in a step shape at the lower end portion of the peripheral wall portion 8. A thinned weakened portion 10 is intermittently formed on the lower end edge of the enlarged diameter portion 9 over, for example, the entire circumference, and the lower end edge of the enlarged diameter portion 9 and the upper end edge of the ring body 2 are interposed via the weakened portion 10. Are concatenated. A seal wall portion 7 a is formed on the lower surface of the top wall portion 7 so as to be in close contact with the upper end opening of the dispensing tube portion 24.

As shown in FIGS. 1 and 2, the connecting portion 3 includes an engaging hole portion 11 protruding from the outer peripheral surface of the ring body 2 and an engaging hook portion 15 protruding from the outer peripheral surface of the cap body 4. Prepare. Hereinafter, the direction indicated by the arrow S in FIG. 2 is the opening direction S along the circumferential direction of the cap 1.
The engagement hook portion 15 is formed on the outer peripheral surface of the cap body 4 at a position spaced from the engagement hole portion 11 in the direction opposite to the opening direction S (the closing direction). The engaging hook portion 15 rotates in the opening direction S around the cap axis O with respect to the ring body 2 when the cap body 4 rotates in the opening direction S around the cap axis O with respect to the container body 35 of the cap body 4. By engaging the relative rotation, the engagement hole 11 is engaged.

  The engagement hole portion 11 forms an engagement hole 12 that is long in the vertical direction in a sectional view along the cap radial direction (see FIG. 1). The engaging hole portion 11 includes an inner wall portion 11a along the outer peripheral surface of the enlarged diameter portion 9, an outer wall portion 11b that is spaced apart on the outer peripheral side of the inner wall portion 11a, and upper and lower ends of the inner and outer wall portions 11a and 11b. It has the upper and lower wall parts 11c and 11d to connect.

  A portion of the inner wall portion 11a located below the upper end portion of the inner wall portion 11a is arranged in the cap radial direction of the engagement hole 12 in order to facilitate the engagement portion 17 of the engagement hook portion 15 into the engagement hole 12. Is inclined so that it gradually increases in size toward the closing direction. The upper end portion of the inner wall portion 11a has the same size in the cap radial direction over the entire length in the cap circumferential direction.

  The outer wall portion 11 b has an intermediate protrusion 13 that protrudes into the engagement hole 12. Hereinafter, a portion below the intermediate protrusion 13 of the engagement hole 12 is referred to as a lower space portion 12a, and a portion above the intermediate protrusion 13 is referred to as an upper space portion 12b.

  The engagement hook portion 15 extends from the upper end portion of the enlarged diameter portion 9 to the outer side in the cap radial direction, and then bends and extends downward, and extends from the lower end portion of the arm portion 16 to be orthogonal to the cap radial direction ( Or a locking portion 17 extending along the circumferential direction of the cap. The locking portion 17 is located at the same vertical height as the lower space portion 12 a of the engagement hole 12. The locking portion 17 extends in the opening direction S.

  When the cap 1 is not opened, the engagement hook portion 15 is located at a position spaced from the engagement hole portion 11 in the cap circumferential direction in the cap closing direction. When the cap main body 4 rotates relative to the ring body 2 in the opening direction S from the unopened state of the cap 1, the locking hook portion engages the locking portion 17 with the lower space portion 12 a of the engagement hole portion 11. Insert inside. A locking claw 17 a that locks at the opening end in the opening direction S when the locking hole 17 is inserted into the engagement hole 11 and restricts the separation from the engagement hole 11 when inserted into the engagement hole 11. It is formed.

  In the above configuration, when the cap 1 is opened from the unopened state, the cap body 4 rotates in the opening direction S with respect to the container body 35. Then, the cap body 4 rotates relative to the ring body 2 while breaking the weakened portion 10, and the locking portion 17 of the engagement hook portion 15 is inserted into the lower space portion 12 a of the engagement hole 12. When the locking portion 17 is completely inserted into the engagement hole 12, the arm portion 16 comes into contact with the opening end of the engagement hole portion 11 in the plug closing direction in the circumferential direction of the cap, and the ring body 2 is integrated with the cap body 4. It can be rotated. At this time, the locking claw 17a engages with the opening end of the engagement hole portion 11 in the plugging direction S, and the ring body 2 can rotate integrally with the cap body 4 also in the plugging direction.

  Thereafter, when the cap body 4 further rotates in the opening direction S, the cap body 4 rises with respect to the ring body 2 accordingly. At this time, the locking portion 17 moves in the engagement hole 12, thereby reducing the load generated on the engagement hook portion 15 and the engagement hole portion 11 when the cap 1 is opened.

  When the screwing of the cap main body 4 to the inner plug member 37 is released and the cap main body 4 can be detached from the inner plug member 37, the locking portion 17 of the engagement hook portion 15 gets over the intermediate protrusion 13 and moves into the upper space. Move into the part 12b. At this time, the latching | locking part 17 is hold | maintained so that it may be inserted | pinched by the cap radial direction at the inner surface of the upper space part 12b. In this state, the lowering of the cap body 4 and the rotation around the locking portion 17 are restricted.

  Thereafter, when the cap shaft O of the cap body 4 is sandwiched in the cap radial direction and the portion located on the opposite side of the engagement hook portion 15 is pulled up, the cap body 4 rotates upwardly around the locking portion 17. To do. At this time, the engaging portion 17 elastically deforms the engaging hole portion 11 while slidingly contacting the inner surface of the upper space portion 12b. When the cap body 4 rotates about 180 °, the locking portion 17 is sandwiched between the inner surfaces of the upper space portions 12b in the cap radial direction as before the rotation, and the cap body 4 is held in the state after the rotation. Is done. An arrow K in the figure indicates the direction of rotation of the cap body 4.

  When the cap body 4 is closed, a procedure reverse to the above procedure is performed. At this time, the ring body 2 and the cap body 4 are rotated in the closing direction while the engagement hook portion 15 and the engagement hole portion 11 remain engaged.

As described above, in the cap 1 in the above-described embodiment, the connecting portion 3 that connects the ring body 2 and the cap body 4 is provided in the engagement hook portion 15 provided in the cap body 4 and the ring body 2. In addition, the engaging hole 11 for engaging the engaging hook portion 15 is provided separately from each other, and the opening operation around the cap axis O with respect to the mouth portion (inner plug member 37) of the container body 35 of the cap body 4. Sometimes, the cap body 4 rotates relative to the ring body 2 around the cap axis O and the engaging hook portion 15 engages with the engaging hole portion 11, and then the cap body 4 engages with the engaging hook portion 15 and the engaging body 15. It is rotatable around the hole 11 and advances and retreats with respect to the mouth of the container body 35.
According to this configuration, the engaging hook portion 15 and the engaging hole portion 11 of the connecting portion 3 are separated from each other and provided to the cap body 4 and the ring body 2, whereby the cap 1 is assembled to the container body 35. While suppressing the unauthorized deformation | transformation etc. of the connection part 3 by the load to the connection part 3 sometimes, etc. and maintaining favorable usability, the magnitude | size etc. of the engagement hook part 15 and the engagement hole part 11 are adjusted easily suitably Therefore, the cap 1 having excellent handleability can be obtained with certainty.

  Further, the engagement hook portion 15 is engaged with the engagement hole portion 11 so as to be movable in the cap axial direction, so that when the cap body 4 is detached from the container body 35, the cap body 4 caps against the ring body 2. The movement in the axial direction can be allowed, and the load generated in the connecting portion 3 can be reduced.

In addition, this invention is not restricted to the said embodiment, For example, it is good also as a structure which provided the engagement hole part 11 in the cap main body 4 while providing the engagement hook part 15 in the ring body 2. FIG.
And the structure in the said embodiment is an example of this invention, A various change is possible in the range which does not deviate from the summary of the said invention.

DESCRIPTION OF SYMBOLS 1 Cap 2 Ring body 3 Connection part 4 Cap main body 11 Engagement hole part 15 Engagement hook part 35 Container body 37 Inner plug member (mouth part)
O Cap shaft

Claims (3)

A ring body fitted on the mouth of the container body in which the contents are stored;
A cap body coupled to the ring body via a coupling portion and removably screwed to the mouth of the container body,
The connection portion includes an engagement hook portion provided in one of the ring body and the cap body, and an engagement hole portion provided in the other and engaged with the engagement hook portion. ,
The cap body rotates relative to the ring body around the cap axis when the cap body rotates in the opening direction around the cap axis with respect to the container body, and the engagement hook portion moves into the engagement hole. Engaging the part,
The cap body is rotatable around the engagement hook portion and the engagement hole portion in a state where the engagement hook portion is engaged with the engagement hole portion, and is advanced and retracted with respect to the mouth portion of the container body. A cap characterized by that.   The cap according to claim 1, wherein the engagement hook portion is engaged with the engagement hole portion so as to be movable in a cap axial direction.   The engagement hook portion is rotatably engaged in the engagement hole portion so as to advance and retract the cap body with respect to the mouth portion of the container body. The described cap.

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