Cap with decorative part

Abstract

To provide a cap with decorative parts which can be molded without damaging or rolling up an engaging protrusion on an inner periphery of a raised part of an upper lid to which the decorative parts are fitted when molding with a mold.SOLUTION: A cap with decorative parts comprises: a cap body B attached to a container A; an upper lid D for opening and closing the cap body B; and decorative parts E fitted to an upper part of the upper lid D. The upper lid D comprises: a top wall 15; an annular raised part 20 rising from an upper surface of the top wall 15; and an engaging protrusion 29 protruding from an inner periphery of the raised part 20. The decorative parts E includes: a fitting part 35 that fits into the raised part 20 of the top lid D; and an engaging part 40 that is recessed on an outer periphery of the fitting part 35 and engages with the engaging protrusion 29 of the raised part 20. The raised part 20 has a recessed part 28 recessed from a lower surface of the top wall 15.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a cap with a decorative part, and more particularly to a cap with a decorative part that can be fitted onto the top of the top lid. [Background technology]

[0002] Conventionally, caps with decorative covers (hereinafter referred to as "caps with decorative parts") have been known for bottles filled with beverages or other contents, which allow each person's bottle to be distinguished from others' bottles by engaging a cover with a decorative body attached to the bottle cap.

[0003] Such a cap with a decorative part is a decorative part that is used by removably engaging with the cap of a container, and the decorative part comprises a part body and a support part that can fix the part body to the cap, the part body is capable of storing a decoration inside and has a hole part through which the stored decoration can be removed, and the support part has an engaging part on the periphery of the hole with which the support part can engage, so that it can be attached and detached to the part body, and an engaging protrusion and an engaging recess are known to engage with each other (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2006-290391 Summary of the Invention [Problem to be solved by the invention]

[0005] In the cap with decorative parts described in Patent Document 1, if the thickness of the inner side surface portion where the locking portion (engagement recess) is formed is set to be thick, there is a problem in that the locking portion (engagement recess) will be rolled up because the locking portion of the support part is molded in a mold and then released by forcing.

[0006] The present invention aims to solve the above problems and provide a cap with decorative parts that can be molded using a mold without damaging or rolling up the engaging protrusion on the inner periphery of the raised portion of the top cover into which the decorative parts are fitted. [Means for solving the problem]

[0007] In order to solve the above-mentioned problems, the present invention provides a cap with decorative parts, which comprises a cap body that is attached to a container, a top lid that opens and closes the cap body, and a decorative part that is fitted onto the top of the top lid, wherein the top lid comprises a top wall, a ring-shaped raised portion that rises from the upper surface of the top wall, and an engaging protrusion that protrudes from the inner circumference of the raised portion, the decorative part comprises a fitting portion that fits into the raised portion of the top lid, and an engaging portion that is recessed into the outer circumference of the fitting portion and engages with the engaging protrusion of the raised portion, and the raised portion comprises a lightening portion recessed from the underside of the top wall.

[0008] As a specific embodiment of the cap with decorative parts, the top lid has a ring-shaped partition extending inward from the inner edge of the raised part and a protrusion erected from the inner edge of the partition, and the decorative part has an engagement hole into which the protrusion of the top lid is inserted, and the protrusion of the top lid has a vertical rib protruding from the outer periphery, and the engagement hole of the decorative part has a vertical groove that engages with the vertical rib of the top lid, and the cap body has a top wall that seals the mouth of the container and a pouring outlet that passes through the top wall, and the top lid has side walls hanging from the outer edge of the top wall and a sealing tube hanging from the underside of the top wall and sealing the pouring outlet. [Effects of the Invention]

[0009] The cap with decorative parts of the present invention can be molded using a mold without damaging or rolling up the engaging protrusion on the inner periphery of the raised portion of the top cover, which is the attachment portion of the decorative parts, so that the decorative parts can be firmly fitted to the top cover. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a side cross-sectional view showing a container fitted with a cap with decorative parts in a closed state according to an embodiment of the present invention. [Figure 2] 1A and 1B are diagrams showing the open state of a hinged cap constituting a cap with decorative parts according to an embodiment of the present invention, in which (a) is a side cross-sectional view and (b) is an enlarged view of a main part of (a). [Figure 3] 2(a) and 2(b) are diagrams showing the hinge cap in the open state shown in FIG. 2(a), where (a) is a top view and (b) is a bottom view. [Figure 4] 1A and 1B are diagrams showing decorative parts constituting a cap with decorative parts according to an embodiment of the present invention, in which (a) is a side cross-sectional view and (b) is a bottom view. [Figure 5] 2(a) is a diagram showing the process of molding the main part of the hinge cap shown in FIG. 2(a), where (a) shows the molding, (b) shows the cavity removal, and (c) shows the intermediate process of core removal. DETAILED DESCRIPTION OF THE INVENTION

[0011] Next, the cap with decorative parts of the present invention will be described with reference to the drawings showing embodiments. In the following description, the left side in FIG. 1 is the "pouring side," the right side is the "rear side," the upper side is the "top," and the lower side is the "bottom."

[0012] (Example) In Figure 1, A is a container, B is a cap body attached to container A, D is a top lid attached to cap body B via hinge C so that it can be opened and closed, and E is a decorative part fitted to the top center of top lid D. The cap with decorative part in this embodiment is composed of a hinge cap comprising cap body B, hinge C, and top lid D, and decorative part E. The container A has a mouth 1 at the top, a thread ridge 2 provided on the outer periphery of the mouth 1, and a stopper 3 that stops the cap body B from being screwed in at the bottom of the thread ridge 2.

[0013] As shown in Figures 1 to 3, the cap body B comprises an upper wall 5 that seals the opening of the mouth 1 of the container A, a pouring outlet 5a that penetrates the center of the upper wall 5, a pouring tube 6 that stands upright from the pouring outlet 5a of the upper wall 5, and an outer peripheral wall 7 that is connected to the outer edge of the upper wall 5 and covers the mouth 1 of the container A. On the underside of the upper wall 5, there are attached an inner tube 8 that is inserted into the inner periphery of the opening of the mouth 1, and an attachment tube 9 whose inner periphery is attached to the outer periphery of the mouth 1, and these are attached to the outside of the inner tube 8.

[0014] A hinge C is connected to the upper end of the back side of the outer peripheral wall 7, and a locking projection 10 is provided in the vertical direction between the outer peripheral wall 7 and the mounting tube 9. The locking projection 10 engages with the stopper portion 3 of the container A to stop the screwing when mounting is complete, thereby indicating completion of the fastening. The locking projection 10 is provided inside the outer peripheral wall 7 below the bottom end of the mounting tube 9. The mounting tube 9 has a threaded portion 11 formed on its inner periphery, which threadably engages with the threaded ridge 2 of the mouth portion 1 .

[0015] The top lid D is attached to the upper outer end of the outer wall 7 of the cap body B via a hinge C so as to be able to be opened and closed freely, and is provided with a ring-shaped top wall 15, a side wall 16 hanging down from the outer edge of the top wall 15, and an attachment part 17 connected to the inner edge of the top wall 15, for attaching a decorative part E above, and for sealing the pouring tube 6 and pouring outlet 5a of the cap body B below. When the cap is closed, the underside of the side peripheral wall 16 abuts against the upper surface of the outer peripheral wall 7 of the cap body B, and a hinge C is connected to the lower end of the back side of the outer periphery, and a gripping portion 18 for holding a finger or the like is formed at the top of the dispensing side.

[0016] The mounting portion 17 is connected to the inner edge of the top wall 15 and includes a raised portion 20 that rises upward, a ring-shaped partition portion 21 that extends inward from the inner edge of the raised portion 20, a hollow protrusion 22 that stands upright from the inner edge of the partition portion 21, and a sealing tube 23 that hangs down from the underside of the partition portion 21 and whose outer periphery is inserted into the inner periphery of the spout 5a on the upper wall 5 of the cap body B to form a seal when the lid is closed.

[0017] The raised portion 20 is composed of an outer peripheral portion 25 that rises upward and has its outer lower end connected to the inner edge of the top wall 15, a ring-shaped upper wall portion 26 that is connected to the inner upper end of the outer peripheral portion 25, and an inner peripheral portion 27 that extends vertically from the inner edge of the upper wall portion 26 to the height of the lower surface of the top wall 15 and has the upper outer edge surface of the partition portion 21 connected to its lower end surface, and a lightening portion 28 is formed between the outer peripheral portion 25 and the inner peripheral portion 27 up to the inner surface of the upper wall portion 26.

[0018] As shown in Figures 1 and 2, the inner periphery 27 has an engaging protrusion 29 protruding from its inner periphery to fit the decorative part E, and at least the inner periphery 27 of the raised portion 20 is formed to be elastically deformable. A covering tube wall 30 is vertically provided on the outer edge of the lower surface of the partition wall portion 21, and covers the inner periphery of the pouring tube 6 of the cap body B when the cap is closed.

[0019] As shown in Figures 1 to 3, the protrusion 22 is hollow and made up of a peripheral wall portion 31 that stands upright from the inner edge of the partition portion 21, and a top wall portion 32 that covers the upper end of the peripheral wall portion 31 and is formed so that its upper surface engages with the lower surface of the top surface portion 41 of the decorative part E described later. Vertical ribs 33 for preventing the decorative part E from rotating are provided at predetermined positions on the outer periphery of the peripheral wall portion 31.

[0020] As shown in Figures 1 and 4, decorative part E has an engaging portion 35 that engages with the inner circumference of the raised portion 20 of the mounting portion 17 of the top cover D, and a decorative portion 36 formed on the upper part of the engaging portion 35, and an engagement hole 37 is recessed in the radial center of decorative part E from the lower end of the engaging portion 35 toward the decorative portion 36.

[0021] The fitting portion 35 is formed so that, when attached, its lower end surface abuts against the upper surface of the partition wall portion 21 of the attachment portion 17 of the top cover D, and its outer periphery engages with the inner periphery 27 of the raised portion 20, and an engaging portion 40 is recessed at a predetermined position on the outer periphery of the fitting portion 35 to engage with the engaging protrusion 29 of the inner periphery 27. The engaging portion 40 may be a convex portion or the like as long as it can engage with the engaging protrusion 29. The engagement hole 37 is formed so that the top surface portion 41 abuts or is close to the upper surface of the top wall portion 32 of the protrusion 22, and a vertical groove 42 is recessed at a predetermined location on the lower side periphery to engage with the vertical rib 33 of the protrusion 22 and prevent the decorative part E from rotating.

[0022] Next, the manner of use and the effects of this embodiment will be described. The hinge cap constituting the cap with decorative parts of this embodiment is molded integrally by setting the mold and injecting synthetic resin so as to be molded in the open state shown in FIG. 2(a).

[0023] As shown in Figure 5, the general molding method for integrally molding a hinge cap using a mold involves injecting molten synthetic resin into a mold consisting of an upper cavity F and a lower core G, solidifying it, releasing the molded product together with the lower core G from the upper cavity F of the mold, and then removing the lower core G from the molded product.

[0024] As shown in Figure 5(a), the hinge cap of this embodiment is formed in a mold with the integrally molded top cover D in an upside-down state, and as shown in Figure 5(b), when the molded product is released from the upper cavity F together with the core G, a hollowed-out portion 28 is formed inside the raised portion 20 of the top cover D. Next, when removing the core G from the molded product, since there is an engaging protrusion 29 protruding from the inner peripheral portion 27 of the raised portion 20 of the upper cover D, the recess α of the core G that forms the engaging protrusion 29 engages with and gets caught on the engaging protrusion 29, and the part is forced out.

[0025] In this embodiment, the upper cover D has a hollowed-out portion 28 formed on the outer periphery so that the inner periphery 27 can elastically deform. As a result, as shown in Figure 5(c), when the recess α of the core G is forced to hollow out, the inner periphery 27 of the upper cover D deforms toward the hollowed-out portion 28, causing the engaging protrusion 29 to retract toward the outer periphery, thereby weakening the engaging force. Furthermore, when the core G is removed, the inner peripheral portion 27 returns to its original shape, so that the engaging protrusion 29 can be prevented from being damaged or from being turned over on the inner peripheral side of the raised portion 20 due to the core G being forcibly removed. As described above, the engagement force between the recess α of the core G and the engagement protrusion 29 of the raised portion 20 can be weakened by the deformation of the inner peripheral portion 27 in response to the force of pulling out the core G, so the shape of the engagement protrusion 29 can be clearly formed without worrying about forcing it out.

[0026] The integrally molded hinge cap rotates the top cover D via the hinge C to cover the cap body B, and closes the top cover D as shown in FIG. When closing the cap, the sealing tube 23 of the top cover D is inserted into the spout 5a of the cap body B and tightly seals it.

[0027] After the hinge cap is closed (or before closing), the fitting portion 35 of the decorative part E is aligned and pushed from above into the raised portion 20 of the mounting portion 17 of the top cover D, and the decorative part E is attached to the top cover D. The decorative part E is aligned by fitting the vertical rib 33 of the top cover D into the vertical groove 42 of the engagement hole 37, and is fixed in place to prevent rotation.

[0028] The decorative part E is attached by inserting the protrusion 22 of the top cover D into the inside of the engagement hole 37, and the engagement portion 40 of the fitting portion 35 of the decorative part E engages with the engagement protrusion 29 inside the inner peripheral portion 27 of the top cover D, thereby fixing the decorative part E in place so that it does not fall out of the attachment portion 17 of the top cover D.

[0029] In this embodiment, the engaging protrusion 29 of the raised portion 20 of the top cover D can be clearly formed, so that the engaging force can be strengthened by combining it with the engaging portion 40 of the fitting portion 35 of the decorative part E, and the decorative part E is aligned with the mounting portion 17 of the top cover D and firmly fixed, and will not easily come off. Furthermore, even if the outer periphery of the fitting part 35 abuts against the engaging protrusion 29 when the decorative part E is attached, the inner periphery 27 deforms and retracts the engaging protrusion 29 toward the hollowed-out part 28, so that the engaging protrusion 29 is not turned up and the engagement with the engaging part 40 is not weakened.

[0030] After closing the cap with decorative parts in this embodiment, the attachment tube 9 of the cap body B is screwed onto the mouth 1 of the container A filled with the contents, and finally the upper wall 5 of the cap body B closes the inside of the mouth 1, and the cap with decorative parts is attached to the mouth 1 of the container A. In this embodiment, the cap with decorative parts is embodied as a hinge cap in which the cap body B and the top cover D are connected by a hinge C, but the top cover D may also be a screw cap that screws onto the cap body B without a hinge.

[0031] When using the contents in container A, by placing one's fingers on the handle 18 of the top lid D and lifting it, the seal between the sealing tube 23 of the top lid D and the pouring outlet 5a of the cap body B is released, and the top lid D is opened. When container A is tilted toward the pouring side, the contents in container A can be poured out of the pouring tube 6 through the pouring outlet 5a of the cap body B.

[0032] By closing the top lid D again on the cap body B, the sealing tube 23 of the top lid D adheres tightly to the pouring outlet 5a of the cap body B to form a seal, thereby sealing the inside of the container A, so that the cap with decorative parts can be used repeatedly by opening and closing the top lid D. [Industrial Applicability]

[0033] The cap with decorative parts of the present invention is suitable as a cap with decorative parts that is fitted to the top of the top lid, because the decorative parts can be firmly fitted to the top lid by molding it using a mold without damaging or rolling up the engaging protrusion on the inner periphery of the raised portion of the top lid, which is the attachment portion of the decorative parts. [Explanation of symbols]

[0034] A container B Cap body C hinge D Top lid E Decorative parts F cavity G Core α recess 1 Mouth 2 thread ridges 3 Stopper part 5 Upper wall 5a spout 6 Pour tube 7 Outer wall 8 Inner cylinder 9 Mounting tube 10 Locking protrusion 11 Threaded section 15 Top wall 16 Side walls 17 Mounting part 18 Knob 20 Ridge 21 Bulkhead 22 Protrusion 23 Seal tube 25 outer periphery 26 Upper wall 27 Inner circumference 28 Cutout 29 Engagement protrusion 30 Covering wall 31 Peripheral wall section 32 Ceiling wall 33 Vertical rib 35 Fitting part 36 Decoration section 37 Engagement hole 40 Engagement portion 41 Top section 42 Vertical grooves

Claims

1. A cap with decorative parts includes a cap body to be attached to a container, an upper lid to open and close the cap body, and a decorative part to be fitted to an upper part of the upper lid, The upper cover has a top wall, an annular raised portion rising from the upper surface of the top wall, and an engaging protrusion provided on the inner periphery of the raised portion, The decorative part includes a fitting portion that fits into the raised portion of the top cover, and an engaging portion that is recessed on the outer periphery of the fitting portion and engages with the engaging protrusion of the raised portion, The cap with decorative part is characterized in that the raised portion has a recessed portion recessed from the lower surface of the top wall.

2. the upper cover includes a ring-shaped partition wall portion extending inward from the inner edge of the raised portion, and a protrusion portion erected from the inner edge of the partition wall, 2. The cap with decorative part according to claim 1, wherein the decorative part has an engagement hole into which the protrusion of the top cover is inserted.

3. The protruding portion of the upper cover has a vertical rib protruding from the outer periphery, 3. The cap with decorative part according to claim 1, wherein the engagement hole of the decorative part has a vertical groove that engages with a vertical rib of the top cover.

4. The cap body has an upper wall that closes the mouth of the container and a spout that penetrates the upper wall, 3. A cap with decorative parts according to claim 1 or 2, characterized in that the upper lid comprises a side peripheral wall extending from the outer edge of the top wall, and a sealing tube extending from the underside of the top wall to seal the spout.

5. The cap body has an upper wall that closes the mouth of the container and a spout that penetrates the upper wall, 4. The cap with decorative parts according to claim 3, wherein the upper lid comprises a side peripheral wall extending from the outer edge of the top wall, and a sealing tube extending from the underside of the top wall to seal the spout.

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