Plastic bottle cap

Abstract

Provided is a plastic bottle cap that uses a structure for holding a cap body in a ring, making it easier to perform desired operations and tasks at each stage and easier to open the plastic bottle. 【Solution means】The plastic bottle cap 100 includes a cap body 110 and a ring provided at the lower end of the cap body and separable from the cap body. The ring has a first convex portion 128 protruding radially outward. The cap body has a pair of second convex portions 116 protruding radially outward. The pair of second convex portions of the cap body form a concave portion 117 that fits into the first convex portion of the ring between them. According to this plastic bottle cap, since the pair of second convex portions that form the concave portion for holding the cap body in the ring protrude radially outward of the cap body, when the user twists the cap body, it becomes easier to apply force by hanging a finger on the second convex portion.

Description

Technical Field

[0001] This specification discloses a technology related to a PET bottle cap.

Background Art

[0002] As a PET bottle cap, one including a cap body and a ring is known. In this PET bottle cap, when a user opens the PET bottle, by twisting the cap body, the cap body is detached from the ring. Patent Document 1 describes a PET bottle cap provided with an arm portion for hooking the detached cap body on the ring.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The PET bottle cap of Patent Document 1 has a problem that no consideration is given to making it easier for a user with relatively weak grip strength to open the PET bottle.

Means for Solving the Problems

[0005] One form of the PET bottle cap disclosed in this specification includes a cap body and a ring provided at the lower end of the cap body and separable from the cap body. One of the members of the cap body and the ring has a first convex portion protruding radially outward. The other member different from the one member of the cap body and the ring has a pair of second convex portions protruding radially outward. The pair of second convex portions form a concave portion that fits into the first convex portion between them. According to the PET bottle cap of this form, since the structure for holding the cap body on the ring protrudes radially outward of the cap body, when the user twists the cap body, it becomes easier to apply force by hooking a finger on the protruding structure. Thereby, by using the structure for holding the cap body on the ring, it is possible to easily open the PET bottle. In addition, by attaching the cap body to the ring, depending on the place of use and the situation, the operation and work become easier at each stage.

Brief Description of the Drawings

[0006]

Figure 1

Figure 2

Figure 3

Embodiments for Carrying Out the Invention

[0007] FIG. 1 is a perspective view showing a PET bottle 10. FIG. 2 is a perspective view showing the opened PET bottle 10. FIG. 3 is a perspective view showing the PET bottle 10 with the cap body 110 held on the ring 120. The PET bottle 10 is a container for holding beverages. The PET bottle 10 includes a PET bottle cap 100 and a bottle body 500.

[0008] The bottle body 500 is a container made of polyethylene terephthalate (PET). The bottle body 500 includes a body portion 510 and a mouth portion 520. The body portion 510 has a space for holding a beverage inside. The mouth portion 520 is a part for taking in and out the beverage between the body portion 510 and the outside.

[0009] The PET bottle cap 100 is a component for closing the mouth portion 520 of the bottle body 500. The PET bottle cap 100 is made of a synthetic resin such as polypropylene (PP) and polystyrene (PS). The PET bottle cap 100 includes a cap body 110, a ring 120, and a plurality of bridges 130.

[0010] The cap body 110 of the PET bottle cap 100 is a lid for closing the mouth portion 520 of the bottle body 500. The cap body 110 is configured to be repeatedly detachable from the mouth portion 520 by a screw method. The cap body 110 has an upper surface 112, a cylindrical portion 114, a pair of convex portions 116, a concave portion 117, and a convex portion 118.

[0011] The upper surface 112 of the cap body 110 has a disc shape that forms an end portion of the cylindrical portion 114. The cylindrical portion 114 of the cap body 110 has a cylindrical shape that is screwed onto the outside of the cylindrical mouth portion 520.

[0012] The pair of convex portions 116 on the cap body 110 are portions that project radially outward from the outside of the cylindrical portion 114. The pair of convex portions 116 form the concave portion 117 between them. The pair of convex portions 116 extend in the axial direction of the cylindrical cylindrical portion 114. The concave portion 117 extends in the axial direction of the cylindrical cylindrical portion 114.

[0013] The convex portion 118 of the cap body 110 is a portion that projects radially outward from the outside of the cylindrical portion 114. The convex portion 118 extends in the axial direction of the cylindrical cylindrical portion 114. The convex portion 118 is provided at a position on the outside of the cylindrical portion 114 that is opposite to the pair of convex portions 116.

[0014] The ring 120 of the PET bottle cap 100 is provided at the lower end of the cap body 110. The ring 120 is configured to be detachable from the cap body 110. The ring 120 has a cylindrical portion 122, a pair of convex portions 126, a concave portion 127, and a convex portion 128. The cylindrical portion 122 has a cylindrical shape that engages with the outside of the tubular mouth portion 520.

[0015] The pair of convex portions 126 in the ring 120 are portions that protrude radially outward from the outside of the cylindrical portion 122. The pair of convex portions 126 form a concave portion 127 between them. The concave portion 127 has a shape that fits into the convex portion 118 of the cap body 110. The pair of convex portions 126 extend in the axial direction of the cylindrical cylindrical portion 122. The concave portion 127 extends in the axial direction of the cylindrical cylindrical portion 122. The shape of the pair of convex portions 126 as viewed from the vertical direction is the same as the shape of the pair of convex portions 116 as viewed from the vertical direction.

[0016] The convex portion 128 of the ring 120 is a portion that protrudes radially outward from the outside of the cylindrical portion 122. The convex portion 128 has a shape that fits into the concave portion 117 of the cap body 110. The convex portion 128 extends in the axial direction of the cylindrical cylindrical portion 122. The convex portion 128 is provided at a position on the outside of the cylindrical portion 122 that is opposite to the pair of convex portions 126.

[0017] The plurality of bridges 130 in the PET bottle cap 100 are portions that connect the lower end of the cap body 110 and the upper end of the ring 120. The bridge 130 is easily cut when the user twists the cap body 110.

[0018] As shown in FIG. 1, in the state before opening the PET bottle 10, the ring 120 is connected to the cap body 110 via a plurality of bridges 130. When the user twists the cap body 110 and the plurality of bridges 130 are cut, as shown in FIG. 2, the ring 120 is detached from the cap body 110. Even in this state, the ring 120 remains held by the mouth portion 520 of the bottle body 500.

[0019] As shown in FIG. 3, by fitting the concave portion 117 of the cap body 110 to the convex portion 128 of the ring 120, it is possible to hold the cap body 110 removed from the mouth portion 520 by the ring 120. Further, by fitting the convex portion 118 of the cap body 110 to the concave portion 127 of the ring 120, it is also possible to hold the cap body 110 removed from the mouth portion 520 by the ring 120.

[0020] According to the PET bottle cap 100 described above, since the pair of convex portions 116 that form the concave portion 117 for holding the cap body 110 by the ring 120 protrude outward in the radial direction of the cap body 110, when the user twists the cap body 110, it is easier to apply force by hanging a finger on the convex portion 116. Accordingly, by using the structure for holding the cap body 110 by the ring 120, it is possible to easily open the PET bottle 10.

[0021] Further, since the convex portion 118 for holding the cap body 110 by the ring 120 protrudes outward in the radial direction of the cap body 110, when the user twists the cap body 110, it is easier to apply force by hanging a finger on the convex portion 118. Accordingly, by using the structure for holding the cap body 110 by the ring 120, it is possible to easily open the PET bottle 10.

[0022] The technology disclosed in this specification is not limited to the above-described embodiments, examples, and modifications, and can be realized in various configurations without departing from the gist thereof. For example, among the technical features in the above-described embodiments, examples, and modifications, those corresponding to the technical features in each form described in the column of the outline of the invention can be appropriately replaced and combined in order to solve some or all of the above-described problems or to achieve some or all of the above-described effects. Further, technical features not described as essential in this specification can be appropriately deleted.

[0023] For example, in the case of an embodiment where the convex portion 118 is not provided on the cap body 110, the pair of convex portions 126 may not be provided on the ring 120.

[0024] Also, in the case of an embodiment where the pair of convex portions 116 is not provided on the cap body 110, the convex portion 128 may not be provided on the ring 120.

Explanation of reference numerals

[0025] 10…Plastic bottle 100…Plastic bottle cap 110…Cap body 112…Upper surface 114…Cylindrical portion 116…Convex portion 117…Concave portion 118…Convex portion 120…Ring 122…Cylindrical portion 126…Convex portion 127…Concave portion 128…Convex portion 130…Bridge 500…Bottle body 510…Body portion 520…Mouth portion

Claims

[Claim 1] A plastic bottle cap, A cap body, a ring provided at the lower end of the cap body and detachable from the cap body; Equipped with One of the cap body and the ring has a first protrusion protruding radially outward, the other member of the cap body and the ring, which is different from the one member, has a pair of second protrusions protruding radially outward; The pair of second protrusions form a recess therebetween that fits into the first protrusion.

Images