JP4568564B2 - Cap device and fitting body used for the cap device - Google Patents

Description

  The present invention relates to a child resistance type (infant resistance type) cap device and a fitting used for the cap device.

  As the child resistance type cap device and the fitting body used for the cap device, the following cap-equipped containers are known (see Patent Document 1).

  In a known container with a cap, an operation cylinder is fitted to the outer periphery of the container body, an elastic plate that elastically deforms inward is provided on the operation cylinder, and a first sawtooth is provided on the outer periphery of the free end side of the elastic plate. Provided. Moreover, the 2nd sawtooth tooth which engages with a 1st sawtooth tooth is provided in the internal peripheral surface of the cap with which an operation cylinder is mounted | worn.

According to the container with a cap, the cap is rotated in the opening direction only after the free end side of the elastic plate is pressed inward to release the engagement between the first and second sawtooth teeth. It can be done.
JP 11-208691 A

  However, in this container with a cap, since the first serrated teeth that engage with the second serrated teeth are provided on the free end side of the elastic plate, the engagement may be released with a weak force. .

  In view of the above-described facts, an object of the present invention is to provide a cap device and a fitting body used for the cap device in which child resistance is enhanced.

A cap device according to a first aspect of the present invention is a cap device having a fitting body fitted to a mouth portion of a container and a cap screwed to an outer periphery of the fitting body, and is formed on the fitting body. An elastic piece that is elastically deformed in the radial direction; a first claw portion provided on an inner peripheral surface of the cap; and a first claw portion provided on an outer peripheral surface on a proximal end side of the elastic piece, and in a free state; Engagement prevents rotation of the cap and presses the free end side of the elastic piece radially inward, thereby releasing the engagement state with the first claw portion, and rotation of the cap. The elastic piece is formed in a cantilever shape between two split grooves formed from the lower end of the fitting body.

  According to the above configuration, in a free state in which the elastic piece formed on the fitting body is not pressed, the first claw portion provided on the inner peripheral surface of the cap and the second provided on the outer periphery on the proximal end side of the elastic piece. The claw portion engages and the cap is prevented from rotating.

  Then, the cap can be rotated by pressing the free end side of the elastic piece radially inward to release the engagement state between the first claw portion and the second claw portion. If the cap is rotated and the cap is removed, the liquid in the container can be poured.

  In this way, the free end side of the elastic piece is pressed and the engagement of the second claw portion on the base end side of the elastic piece is released, so the free end side of the elastic piece is pressed and the free end side of the elastic piece Therefore, a larger force is required to release the engaged state of the claw part than to release the engagement of the claw part. For this reason, according to the cap device of the first aspect of the present invention, the child resistance can be enhanced.

  In this cap device, since the elastic piece is cantilevered by the split groove formed from the lower end of the fitting body, it is easy to form the elastic piece on the fitting body.

  According to a second aspect of the present invention, there is provided a fitting body that is fitted to the mouth of the container, and in which the cap is screwed to the outer periphery, an elastic piece that is elastically deformed in the radial direction, and a base end side of the elastic piece. It is provided on the outer peripheral surface, and in a free state, it engages with a first claw portion provided on the inner peripheral surface of the cap to prevent the cap from rotating, and the free end side of the elastic piece is radially inward. A second claw portion that is released from being engaged with the first claw portion and allows the cap to rotate, and the elastic piece is formed from a lower end of the fitting body. It is formed in a cantilever shape between two split grooves.
  A container according to claim 3 of the present invention is a gap between the cap device according to claim 1 and a fitting body of the cap device, and the elastic piece in a state where the fitting body is fitted. And a mouth portion having the outer wall having a curvature smaller than the curvature of the inner wall of the fitting body.

  Since the present invention has the above-described configuration, it is possible to enhance child resistance.

  One embodiment according to the cap device of the present invention will be described with reference to FIGS.

  As shown in FIGS. 1 and 2, the cap device 10 includes a fitting body 16 fitted to the outer periphery of the mouth portion 14 of the container 12. When the fitting body 16 is fitted to the mouth portion 14, the groove 17 is latched by the locking rib 18 provided in the mouth portion 14, and movement in the axial direction is prevented. Further, as shown in FIG. 3, a locking portion 20 having a substantially oval shape is formed in the base portion of the mouth portion 14 in plan view. The flat part 20A formed on the outer peripheral part of the locking part 20 is in contact with the flat part 16A formed on the inner peripheral part of the fitting body 16, whereby rotation of the fitting part 16 around the axis is prevented. The As shown in FIGS. 1 and 2, the fitting body 16 includes a cylindrical spout 22 extending upward from the center thereof, and the liquid contained in the container 12 can be poured from the spout 22. It has become.

  Note that the spout 22 is not limited to a cylindrical shape extending upward from the center portion of the fitting body 16, and is, for example, a planar shape that closes the open end of the mouth portion 14 as shown in FIG. The hole 40 may be formed at the center.

  Further, the spout 22 is not limited to the case provided in the fitting body 16, and the mouth 14 itself of the container may be a spout as shown in FIG. 4B.

  In addition, the fitting body 16 is provided with a pair of elastic pieces 24 that are cantilevered by two split grooves 26 formed from the lower end and elastically deform in the radial direction. Since a pair of elastic pieces 24 are provided at opposite positions, the elastic pieces 24 can be pressed inward in the radial direction across both sides.

  A male screw portion 28 is provided on the outer periphery of the fitting body 16, and a cap 30 that opens and closes the spout 22 is screwed to the male screw portion 28 by a female screw portion 29 provided on the cap 30. .

  As shown in FIG. 3, a first claw portion 32 is provided on the inner circumferential surface of the cap 30 over the entire circumference. On the other hand, on the proximal end side of the outer peripheral surface of the elastic piece 24 of the fitting body 16, three second claw portions 34 that engage with the first claw portion 32 are formed.

  As shown in FIG. 3, the cross section of the first claw portion 32 has a substantially right triangle shape, and the inclined surface 32A forming the hypotenuse of the right triangle is inclined with respect to the closing direction (A direction) of the cap 30. , Facing the closing direction of the cap 30. Further, the vertical plane 32B forming the height side of the right triangle faces the opening direction of the cap 30 perpendicular to the opening direction (B direction) of the cap 30.

  As shown in FIG. 3, the cross-section of the second claw portion 34 has a substantially right triangle shape, and the inclined surface 34 </ b> A forming the hypotenuse of the right triangle is closed on the inclined surface 32 </ b> A of the first claw portion 32. It is inclined to contact with the direction. The vertical surface 34B forming the height side of the right triangle contacts the vertical surface 32B of the first claw portion 32 perpendicularly to the opening direction of the cap.

  Since the inclined surface 32A and the inclined surface 34A are in contact with each other while being inclined with respect to the closing direction of the cap 30, the cap 30 can be rotated in the closing direction while the inclined surface 32A is in contact with the inclined surface 34A. On the other hand, since the vertical surface 32B and the vertical surface 34B are in contact with each other perpendicular to the opening direction of the cap 30, the cap cannot be rotated in the opening direction in a free state in which the elastic piece 24 is not pressed radially inward. (See FIG. 2A). That is, the cap device 10 utilizes a ratchet mechanism that can rotate the cap 30 in one of the closing directions and cannot rotate in the opening direction in a free state.

  When the pair of elastic pieces 24 are pressed radially inward from both sides, the elastic pieces 24 are elastically deformed to a position where the vertical surface 32B and the vertical surface 34B do not contact each other. That is, by pressing the elastic piece 24 radially inward from both sides, the engagement state between the first claw portion 32 and the second claw portion 34 is released, and the cap 30 can be rotated in the opening direction. (See FIG. 2B).

  Next, the operation of the above embodiment will be described.

  When the cap 30 is rotated in the closing direction and the cap 30 is once closed, the first claw portion 32 provided on the inner peripheral surface of the cap 30 in a free state in which the elastic piece 24 formed on the fitting body 16 is not pressed. And the second claw portion 34 provided on the outer periphery of the base end side of the elastic piece 24 are engaged, and the rotation of the cap 30 in the opening direction is prevented (see FIG. 2A).

  When the free end sides of the pair of elastic pieces 24 are pressed radially inward from both sides to release the engagement state between the first claw portion 32 and the second claw portion 34, the cap 30 opens in the opening direction. It can be rotated (see FIG. 2B). If the cap is rotated in the opening direction to remove the cap, the liquid in the container can be poured from the spout 22.

  In this way, the free end side of the elastic piece 24 is pressed and the engagement of the second claw portion 34 on the base end side of the elastic piece 24 is released, so the free end side of the elastic piece is pressed and the elastic piece 24 A larger force is required to release the engaged state of the claw portion than to release the engagement of the claw portion on the free end side. Therefore, according to the cap device 10 of the present embodiment, the child resistance can be enhanced.

  The present invention is not limited to the embodiment described above, and various forms are possible.

  For example, the elastic piece 24 is not limited to a cantilever shape formed by a split groove formed from the lower end of the fitting body, and this portion may be thin and elastically deformed in the radial direction.

FIG. 1 is a perspective view of a cap device according to an embodiment of the present invention. FIG. 2 is a side sectional view of the cap device according to the present embodiment. FIG. 3 is a top sectional view of the cap device according to the present embodiment. FIG. 4 is a view showing a modified example of the cap device according to the present embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Cap implement 12 Container 14 Mouth part 16 Fitting body 24 Elastic piece 26 Split groove 30 Cap 32 1st nail | claw part 34 2nd nail | claw part

Claims (3)

In a cap device having a fitting body fitted to the mouth portion of the container, and a cap screwed onto the outer periphery of the fitting body,
An elastic piece formed on the fitting body and elastically deformed in a radial direction;
A first claw portion provided on an inner peripheral surface of the cap;
Provided on the outer peripheral surface of the base end side of the elastic piece, engages with the first claw portion in a free state to prevent the cap from rotating, and presses the free end side of the elastic piece radially inward By doing so, the engagement state with the first claw portion is released, the second claw portion is allowed to rotate the cap,
With
The elastic piece is a cap member formed in a cantilever shape between two split grooves formed from a lower end of the fitting body .   In the fitting body fitted into the mouth of the container and screwed into the outer periphery,
  An elastic piece that elastically deforms in the radial direction;
  Provided on the outer peripheral surface of the base end side of the elastic piece, and in a free state, engages with a first claw portion provided on the inner peripheral surface of the cap to prevent rotation of the cap, thereby freeing the elastic piece. By pressing the end side inward in the radial direction, the engagement state with the first claw portion is released, and the second claw portion is allowed to rotate the cap;
  With
  The elastic piece is a fitting body formed in a cantilever shape between two split grooves formed from the lower end of the fitting body. A cap device according to claim 1;
  A fitting body of the cap tool is fitted, and an outer wall is formed between the elastic piece and the fitting body is fitted, and is smaller than the curvature of the inner wall of the fitting body. A mouth having the outer wall that is curved;
  Container.

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