Segregation cap

Abstract

To provide a segregation cap allowed to be fit onto even a cap body having a segregation mechanism formed with a breakable thin-walled portion in a manner not to rotate unless tightened strongly at an outer peripheral wall to a mouth without spoiling the sealability with the mouth of a container body.SOLUTION: A segregation cap comprises: a cap body B to be mounted by plugging onto a mouth 1 of a container body A; and a lid body D attached to the cap body B openably / closably. The mouth 1 of the container body A has a plurality of vertical ribs 5 projecting from an outer periphery. The cap body B has: an outer peripheral wall 11 to fit to the outer periphery of the mouth 1 of the container body A; and a circumferential rib 25 projecting circumferentially from an inner peripheral surface of the outer peripheral wall 11 so that, when plugging the cap body B onto the mouth 1 of the container body A, the vertical ribs 5 are bitten into the circumferential rib 25.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a separation cap, and particularly to a separation cap that can prevent rotation with respect to the mouth portion when attached to the mouth portion of a container body by screwing.

Background Art

[0002] Conventionally, as a container for food or the like, a cap body having a spout is attached to the mouth portion of a container body by screwing, and the cap body is opened and closed by a lid. Also, from the viewpoint of environmental protection, there is also known a separation cap in which a breakable thin portion is previously formed in the cap body so that the thin portion can be broken at the time of disposal to easily separate the cap body from the container body.

[0003] In this type of separation cap, since a thin portion is provided in the cap body, if the fitting of the cap body to the mouth portion of the container body is set too strongly, the thin portion may break. Therefore, if the fitting between the mouth portion of the container body and the cap body becomes loose, the cap body may rotate with respect to the container body. To solve this problem, there is provided a separation mechanism on a top wall and an outer peripheral wall portion that is continuously suspended from the periphery of the top wall, which has a spout, and is attached to the mouth portion of the container body by screwing, and a lid is screwed onto the cap body. There is known a container with a separation cap provided with a locking portion for preventing the cap body from rotating between the upper end portion of the outer peripheral surface of the mouth portion of the container body and the upper end portion of the inner peripheral surface of the outer peripheral wall portion of the cap body (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, in the container with a separating cap described in Patent Document 1, since a locking portion for preventing rotation is provided between the upper end portion of the outer peripheral surface of the mouth portion of the container body and the upper end portion of the inner peripheral surface of the outer peripheral wall portion of the cap body, the problem of rotation has been solved, but there is a problem that the sealing performance between the mouth portion of the container body and the mounting portion of the cap body may be reduced.

[0006] An object of the present invention is to solve the above problems and provide a separating cap that can be fitted so as not to rotate without impairing the sealing performance with the mouth portion of the container body, even if the cap body has a separating mechanism with a breakable thin portion.

Means for Solving the Problems

[0007] In order to solve the above problems, the present invention provides a separating cap having a separating mechanism with a breakable thin portion, a cap body that is attached to the mouth portion of the container body by screwing, and a lid body that is detachably attached to the cap body. The mouth portion of the container body has a plurality of vertical ribs protruding from the outer periphery, and the cap body has an outer peripheral wall portion that fits with the outer periphery of the mouth portion of the container body and a circumferential rib that protrudes in the circumferential direction from the inner peripheral surface of the outer peripheral wall portion. When the cap body is screwed onto the mouth portion of the container body, a configuration is adopted in which the vertical ribs are bitten into the circumferential ribs.

[0008] As an embodiment of the separate cap, the cap body is provided with an inward recess that is recessed on the inner circumference of the outer peripheral wall portion and covers the vertical rib of the container body, and the circumferential rib is protruded from the lower portion of the inward recess. Further, the mouth portion of the container body has, on the outer circumference, an upper outer peripheral surface portion formed vertically from the upper portion, a locking protrusion formed from the lower end of the upper outer peripheral surface portion for fitting and retaining the cap body to prevent it from coming off, and an inclined upper surface formed on the upper portion of the locking protrusion. The vertical rib is protruded between the lower portion of the upper outer peripheral surface portion and the upper portion of the inclined upper surface of the locking protrusion. Further, the locking protrusion of the mouth portion has an outer peripheral surface that extends vertically downward from the lower end of the inclined upper surface and a locking lower surface that horizontally reduces the diameter from the lower end of the outer peripheral surface to the outer peripheral surface of the mouth portion. The outer peripheral wall portion of the cap body has, on the inner circumference, an inward protruding surface portion that abuts against the upper outer peripheral surface portion of the mouth portion, an inward recess that is recessed from the lower end of the inward protruding surface portion and covers the outer circumference of the vertical rib, an inclined engaging surface that is inclined from the lower end portion of the inward recess and abuts against the inclined upper surface of the locking protrusion, an inner peripheral engaging surface that extends from the lower end of the inclined engaging surface and abuts against the outer peripheral surface, and an engaging protrusion that protrudes inward from the lower end of the inner peripheral engaging surface and engages with the locking lower surface.

Advantages of the Invention

[0009] By adopting the above configuration, when the cap body is plugged onto the container body, the vertical rib bites into the circumferential rib, preventing the cap body from rotating relative to the container body, and it can be fitted so as not to rotate without strongly clamping the mouth portion with the outer peripheral wall portion.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

MODE FOR CARRYING OUT THE INVENTION

[0011] Next, the sorting cap of the present invention will be described with reference to the drawings shown in the embodiments. In the following description, in FIG. 1(a), the left direction is defined as the "front side (opposite side to the hinge)", the right direction is defined as the "rear side (hinge side)", the upward direction is defined as "up", and the downward direction is defined as "down".

[0012] (Embodiment) In FIG. 1, A is a container body, B is a cap body attached to the container body A by capping, and D is a lid body detachably attached to the cap body B via a hinge C.

[0013] As shown in FIGS. 1 and 2, the mouth portion 1 of the container body A includes an upper outer peripheral surface portion 2 formed substantially vertically at a height L from the upper portion on the outer periphery, and a locking ridge 3 formed below the upper outer peripheral surface portion 2 for fitting and retaining the cap body B to prevent it from coming off. The locking ridge 3 is composed of an inclined upper surface 3a inclined downward and outward from the lower end of the upper outer peripheral surface portion 2, an outer peripheral surface 3b extending vertically downward from the lower end of the inclined upper surface 3a, and a locking lower surface 3c that horizontally reduces the diameter from the lower end of the outer peripheral surface 3b to the outer peripheral surface of the mouth portion 1.

[0014] As shown in FIGS. 1(b) and 2(b), a plurality of vertical ribs 5 with a height of α and an inner and outer width of β are arranged at equal intervals in the vertical direction between the lower part of the upper outer peripheral surface 2 and the upper part of the inclined upper surface 3a of the locking rib 3 at the mouth part 1 of the container body A. In this embodiment, as shown in FIG. 2(a), the vertical ribs 5 are formed at eight positions at intervals of 45° in the circumferential direction when viewed from above. However, the number of the vertical ribs 5 installed can be selected as required.

[0015] As shown in FIGS. 1, 3, 4, and 5, the cap body B includes an outer peripheral wall portion 11 on the outer peripheral side, an inner cylinder 12 on the inner peripheral side, and an upper wall 13 located on the top surface side of the mouth part 1. It has a mounting portion 10 that forms an annular groove into which the mouth part 1 of the container body A is fitted, and a partition wall 14 that extends inward from the inner edge of the mounting portion 10 and seals the opening of the mouth part 1. An outlet 14a is opened in the partition wall 14 at a position closer to the front side (opposite side to the hinge) than the center. An outlet cylinder portion 15 stands upright from the periphery of the outlet 14a. An upper wall engaging portion 16 that engages with the lid body D on the upper surface and the outer periphery is erected on the upper part of the upper wall 13.

[0016] On the inner periphery of the outer peripheral wall portion 11, at the upper part, there is an inward projecting surface portion 20 whose inner peripheral surface abuts against the upper outer periphery of the upper outer peripheral surface 2 of the mouth part 1 of the container body A. From the lower end of the inward projecting surface portion 20 outward, there is an inward concave portion 21 recessed with the same height α and inner and outer width β as the vertical rib 5, which covers the outer periphery of the vertical rib 5. An inclined engaging surface 22 that inclines downward and outward from the lower end portion of the inward concave portion 21 and abuts against the inclined upper surface 3a of the locking rib 3, an inner peripheral engaging surface 23 that extends vertically from the lower end of the inclined engaging surface 22 and abuts against the outer peripheral surface 3b, and an engaging protrusion 24 that projects inward from the lower end of the inner peripheral engaging surface 23 and whose upper part engages with the locking lower surface 3c to prevent falling off are provided. Note that the inward concave portion 21 may have a height larger than that of the vertical rib 5 and also an inner and outer width. Furthermore, in the inward concave portion 21, circumferential ribs 25 that can be crushed and deformed are projected in the circumferential direction with a width narrower than the inner and outer width β of the vertical rib 5 from the inner lower part. Note that the circumferential ribs 25 may be provided intermittently or continuously.

[0017] As shown in FIG. 5, when viewed from the hinge C side, in the vicinity of the left side of the hinge C, on the outer peripheral surface of the outer peripheral wall portion 11, an outer peripheral cutout portion 26 that is substantially V-shaped in plan view is cut with a thin bottom wall 27 remaining at the lower end portion. On the back side of the outer peripheral cutout portion 26, a slit groove 28 that extends through the center and extends to the right starting from a position that separates the thin portion at the upper inner peripheral side of the end face 26a is recessed from the upper surface. Outside the slit groove 28 on the upper surface, it is an arc wall portion 29 that connects the hinge C.

[0018] At a position corresponding to the outer peripheral cutout portion 26 of the engaging protrusion portion 24 on the inner periphery of the outer peripheral wall portion 11, as shown in FIG. 4, an inner peripheral cutout portion 30 that is cut from the inner peripheral lower end including the engaging protrusion portion 24 is engraved. The outer peripheral wall portion 11 of this portion is a thin wall that is cut from both the inside and the outside and is breakable and deformable, and is continuous with the thin bottom wall 27 to form a longitudinal tear line 31. Between the inner side of the bottom surface of the slit groove 28 and the outer side of the lower surface of the upper wall 13, it is a breakable thin wall, forming a circumferential tear line 32. For this reason, only the inner peripheral cutout portion 30 of the circumferential rib 25 is missing.

[0019] As shown in FIG. 1, the lid body D is attached to the outer peripheral upper end of the outer peripheral wall portion 11 of the cap body B via the hinge C so as to be openable and closable, and includes a disk-shaped top wall 35, a side peripheral wall 36 that is vertically provided from the peripheral edge of the top wall 35 and has the hinge C continuously provided at the outer peripheral lower end portion, and a sealing cylinder 37 that is vertically provided from a predetermined position on the lower surface of the top wall 35 and seals the upper inner periphery of the pouring cylinder portion 15.

[0020] An engaging recess 38 that engages with the lid engaging portion 16 to maintain the closed lid state is provided around the inner periphery of the lower end portion of the side peripheral wall 36. On the outer periphery of the side peripheral wall 36, an arc-shaped knob portion 39 is formed in the circumferential direction at the lower end portion on the front side, and the hinge C is continuously provided at the lower end portion on the back side. In addition, in this embodiment, the separation cap is a hinge cap in which the cap body B and the lid body D are attached via the hinge C, but it may also be a screw cap in which the lid body D is screwed to the cap body B.

[0021] In order to prevent unauthorized opening before use, although not shown in the figure, a shrink label, a sealing member, or the like may be provided between the cap body B and the lid body D of the sorting cap of this embodiment.

[0022] Next, the usage mode and operation effect of this embodiment will be described. As shown in FIG. 3, the sorting cap of this embodiment is integrally formed in an open lid state via a hinge C. The formed sorting cap covers the cap body B by rotating the lid body D by the hinge C and is closed as shown in FIG. 6.

[0023] At this time, the engaging recess 38 on the side peripheral wall 36 of the lid body D and the lid engaging portion 16 of the cap body B are engaged to maintain the closed lid state. In addition, the sealing cylinder 37 of the lid body D is inserted into the upper inner periphery of the pouring cylinder portion 15 of the cap body B to seal the inside of the pouring cylinder portion 15.

[0024] Next, the closed sorting cap is attached to the mouth portion 1 of the container body A filled with the content liquid by means of a stopper. As shown in FIG. 6, in the stopper attaching process, from above the mouth portion 1 of the container body A, when the annular groove formed in the attaching portion 10 of the cap body B is aligned and a pressing force is applied from above the lid body D, the engaging protrusion 24 on the outer peripheral wall portion 11 abuts against the locking protrusion 3 on the mouth portion 1, and while spreading the outer peripheral wall portion 11, it gets over the locking protrusion 3, and the inner periphery of the outer peripheral wall portion 11 and the outer periphery of the mouth portion 1 are fitted together, and the mouth portion 1 of the container body A is clamped and attached by the outer periphery of the inner cylinder 12 of the cap body B, the inner periphery of the outer peripheral wall portion 11, and the upper wall 13.

[0025] When attaching the stopper to the sorting cap, the inner protruding surface 20 on the inner periphery of the outer peripheral wall portion 11 and the inner concave portion 21 on the outer periphery of each vertical rib 5, the inclined engaging surface 22 on the inclined upper surface 3a of the locking protrusion 3, the inner peripheral engaging surface 23 on the outer peripheral surface 3b, and the upper portion of the engaging protrusion 24 on the locking lower surface 3c are respectively engaged with the upper outer peripheral surface portion 2 on the outer periphery of the mouth portion 1. Furthermore, the circumferential rib 25 is provided within the inner recess 21, at a position below and spaced apart from the inner protruding surface portion 20, and has a radial width smaller than or the same as that of the inner protruding surface portion 20, thus facilitating the engagement of the vertical rib 5. Therefore, the load during plugging can be reduced.

[0026] In the sorting cap of this embodiment, during plugging, the plurality of vertical ribs 5 protruding from the mouth portion 1 of the container body A respectively engage by biting into the circumferential ribs 25 protruding from the inner recess 21 on the inner periphery of the outer peripheral wall portion 11 of the cap body B, so that the cap body B can be prevented from rotating with respect to the container body A.

[0027] By providing the inner recess 21 below the inner protruding surface portion 20 in the sorting cap of this embodiment, the contact area between the inner protruding surface portion 20 and the upper outer peripheral surface portion 2 can be reduced, and the fitting force can be adjusted. In this way, in order to strengthen the fitting between the outer periphery of the mouth portion 1 of the container body A and the inner periphery of the outer peripheral wall portion 11 of the cap body B, the outer peripheral wall portion 11 does not need to strongly tighten the mouth portion 1 (to the extent that the sealed state can be maintained). Therefore, during plugging, the outer peripheral wall portion 11 is not forced to expand, and there is no risk of breaking the longitudinal tear line 31, which is the thin-walled portion of the outer peripheral wall portion 11.

[0028] When using the content liquid in the container body A, first, when lifting the cap body B by holding the knob portion 39 of the lid body D, the seal between the sealing cylinder 37 of the lid body D and the upper inner periphery of the pouring cylinder portion 15 of the cap body B is disengaged, and the engagement between the side peripheral wall 36 of the lid body D and the lid engaging portion 16 of the cap body B is released, and the lid body D is opened with respect to the cap body B. After opening the lid, the container body A is tilted, and the content liquid in the container body A can be poured out from the pouring cylinder portion 15.

[0029] When the use of the content liquid is finished, by returning the tilt of the container body A and closing the lid body D with respect to the cap body B again, the sealing cylinder 37 of the lid body D can be inserted again into the upper inner periphery of the pouring cylinder portion 15 of the cap body B and sealed. The sorting cap of this embodiment can repeatedly open and close the lid D and can pour out the content liquid.

[0030] Next, a mode of separately discarding the sorting cap after all the content liquid in the container body A has been used will be described. The sorting mechanism is not limited to the one described below, as long as it has a breakable thin-walled part. At that time, when the lid D of the sorting cap is opened and the lid D is grasped with a finger and pulled outward, the back side of the arc wall portion 29, which is the connecting portion with the hinge C of the outer peripheral wall portion 11 via the hinge C, is pulled outward, pulling and deforming the back side of the continuous outer peripheral wall portion 11.

[0031] When the lid D is further pulled, the longitudinal tear line 31 is broken from above, and the continuous thin-walled bottom wall 27 is also broken. At the same time, the circumferential tear line 32 is cut in the circumferential direction from the end face 26a side connected to the longitudinal tear line 31. The lid D and the circumferential tear line 32 of the cap body B connected thereto are partitioned, and the lower side of the arc wall portion 29 of the broken outer peripheral wall portion 11 is separated from the cap body B.

[0032] In the sorting cap of this embodiment, a plurality of longitudinal ribs 5 protruding from the mouth portion 1 of the container body A are respectively engaged with the circumferential ribs 25 protruding from the inner concave portion 21 inside the inner circumference of the outer peripheral wall portion 11 of the cap body B, preventing the cap body B from rotating with respect to the container body A. Therefore, the cap body B connected by pulling the lid D does not rotate around the container body A, and the circumferential tear line 32 can be cut in the circumferential direction from the end face 26a side of the cap body B along with the pulling of the lid D.

[0033] Next, when the circumferential tear line 32 is broken and further pulled, the lower side of the arc wall portion 29 of the outer peripheral wall portion 11 is pulled outward, and the fitting between the engaging protrusion 24 on the lower side of the arc wall portion 29 of the outer peripheral wall portion 11 of the cap body B and the locking rib 3 of the mouth portion 1 of the container body A is disengaged. When it is lifted upward as it is, the upper side and the inner side of the outer peripheral wall portion 11 connected to the lower end portion of the arc wall portion 29 are lifted, and the cap body B is removed from the mouth portion 1 of the container body A. Therefore, the separation cap and the container body A can be separated.

Industrial Applicability

[0034] In the separation cap of the present invention, by projecting a vertical rib from the mouth portion of the container body and projecting a circumferential rib from the inner circumference of the outer peripheral wall portion of the cap body, when the cap body is plugged onto the container body, the vertical rib bites into the circumferential rib, preventing the cap body from rotating relative to the container body. Since it can be fitted so as not to rotate without strongly clamping the outer peripheral wall portion to the mouth portion, it is suitable as a container to which a separation cap having a separation mechanism with a breakable thin-walled portion is attached.

Explanation of Signs

[0035] A Container body B Cap body C Hinge D Lid body L, α Height β Inner and outer width 1 Mouth portion 2 Upper outer peripheral surface portion 3 Locking rib 3a Inclined upper surface 3b Outer peripheral surface 3c Locking lower surface 5 Vertical rib 10 Mounting portion 11 Outer peripheral wall portion 12 Inner cylinder 13 Upper wall 14 Partition wall 14a Pouring outlet 15 Pouring cylinder portion 16 Lid engaging portion 20 Inner projecting surface portion 21 Inner concave portion 22 Inclined engagement surface 23 Inner peripheral engagement surface 24 Engagement protrusion 25 Circumferential rib 26 Outer peripheral cut portion 26a End face 27 Thin-walled bottom wall 28 Slit groove 29 Arc wall portion 30 Inner peripheral cut portion 31 Longitudinal tear line 32 Circumferential tear line 35 Top wall 36 Side peripheral wall 37 Sealing cylinder 38 Engagement recess 39 Knob portion

Claims

1. A sorting cap comprising a sorting mechanism with a breakable thin part, a cap body attached to the mouth of the container body by screwing, and a lid body detachably attached to the cap body, The mouth of the container body has a plurality of vertical ribs protruding from the outer periphery, The cap body has an outer peripheral wall portion that fits with the outer periphery of the mouth of the container body, and a circumferential rib protruding in the circumferential direction from the inner peripheral surface of the outer peripheral wall portion, A sorting cap characterized in that when the cap body is screwed onto the mouth of the container body, the vertical ribs are bitten into the circumferential ribs.

2. The cap body is provided with an inward recess that is recessed in the inner periphery of the outer peripheral wall portion and covers the vertical ribs of the container body, The circumferential rib protrudes from the lower part of the inward recess. The sorting cap according to claim 1, characterized in that.

3. The mouth of the container body has, on the outer periphery, an upper outer peripheral surface portion formed vertically from the upper part, a locking ridge formed from the lower end of the upper outer peripheral surface portion for fitting the cap body and preventing it from coming off, and an inclined upper surface formed on the upper part of the locking ridge, The vertical rib protrudes between the lower part of the upper outer peripheral surface portion and the upper part of the inclined upper surface of the locking ridge. The sorting cap according to claim 1 or 2, characterized in that.

4. The locking ridge of the mouth has an outer peripheral surface extending vertically downward from the lower end of the inclined upper surface, and a locking lower surface that horizontally reduces the diameter from the lower end of the outer peripheral surface to the outer peripheral surface of the mouth, The outer peripheral wall portion of the cap body has, on the inner periphery, an inward protruding surface portion that abuts against the upper outer peripheral surface portion of the mouth, an inward recess that is recessed from the lower end of the inward protruding surface portion and covers the outer periphery of the vertical rib, an inclined engaging surface that inclines from the lower end portion of the inward recess and abuts against the inclined upper surface of the locking ridge, an inner peripheral engaging surface that extends from the lower end of the inclined engaging surface and abuts against the outer peripheral surface, and an engaging protrusion that protrudes inward from the lower end of the inner peripheral engaging surface and engages with the locking lower surface. The sorting cap according to claim 3, characterized in that.

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