JP5370198B2 - Can cap and can with gift - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a can cap to be engaged with cans of different outside diameters under low pressure. <P>SOLUTION: The can cap includes a cap body and a pressure ring to be screwed to the cap body. The cap body has a top surface part, and a side wall part consisting of a first side wall perpendicularly provided on an outer periphery of the top surface part, a second side wall continuously provided on the first side wall and having the inside diameter larger than that of the first side wall, and a third side wall continuously provided on the second side wall and having the inside diameter larger than that of the second side wall. The first side wall has a thread to be screwed with the pressure ring on its outer periphery. The second side wall has a plurality of intermittent parts in a vicinity of its lower end, and has a first locking part projected inward of the cap body from its lower end. The third side wall has a second locking part which is continuously provided on the second side wall and projected inward of the cap body from its lower end, and a connection part of the first and second side walls forms a thin-walled hinge. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a cap for a can that can be detachably engaged with tightening portions having different outer diameters, a cap for a can for storing a prize that can store a prize therein, and a can cap for storing a prize that stores a prize The present invention relates to a can with a prize that is engaged with a can of coffee or the like through a winding tightening portion.

  In recent years, beverage cans with premiums have been sold for the purpose of sales promotion. For example, beverage cans with food toys added to cans such as coffee beverages have been manufactured and sold in stores or via vending machines. Yes. Such a beverage can with a food toy is formed by fitting a food can to be placed on the top surface of the can body with a cap for a beverage can so as to cover the can and the food toy.

  Such a beverage can cap has a circular cap shape substantially corresponding to a cylindrical can product, can be stored in a premium inside, and can be detachably fitted to the upper edge of the can product. There is a cap (Patent Document 1). A circular cap shape substantially corresponding to the can article is formed, and an engaging claw is integrally formed at the lower end portion of the inner periphery of the peripheral wall, and the engaging claw protrudes inward of the can cap and the peripheral wall. It is formed so as to be continuous along the circumferential direction. The lower end of the can article can be attached to the can article by pushing it against the upper end of the can article. The can cap is fitted and held on the can article by the engagement. When the can cap is lifted upward from this state, the engagement between the engagement claw and the tightening portion is released and the can cap can be removed from the can article.

  Moreover, it is a cap to be fitted to cans, and a plurality of longitudinal grooves bulging inward at equal intervals are formed in the vertical direction of the cylindrical portion suspended inward from the outer peripheral edge of the planar portion of the cap. In addition, there is also a promotional product storage cup for storing promotional items, in which the inner diameter of the cap opening and the outer diameter of the can are formed to be substantially the same diameter (Patent Document 2). If a plurality of longitudinal grooves bulging inward are formed at equal intervals in the vertical direction of the cylindrical portion, the longitudinal grooves extend during fitting, so that the inner diameter of the cap expands and can be fitted.

Further, a plurality of cap-shaped holding portions that fit into the heads of the cans are arranged, and a plurality of engaging claws are formed to protrude in the circumferential direction of the inner surface of the side wall portion of the holding portion. The upper surface has a substantially horizontal saw-toothed cross section in side view so that it engages with the lower edge of the tightening portion of the cans, and both end portions thereof are inclined toward the opening end side of the side wall portion, and the release portion is There is also a can holder formed (Patent Document 3).
In a configuration in which cans are guided by a 45 ° inclined surface so that the can is fitted to the holding portion with the engaging claw, and when extracted from the holding portion, the can is attached to the engaging claw. The holding part is easy to expand because it is in contact with the 45 ° inclined surface in the state where the winding part of the kind is engaged, and the cans are easy to fall off the holder, When the thickness of the meat is thickened, the engaging claws are strong and need to press the winding portions of the cans, which requires a large force. Patent Document 3 solves this problem, and the upper surface of the engaging claw is a saw-tooth shape that is substantially horizontal when viewed from the side, and a release portion that is inclined toward the opening end side is formed at both ends thereof. To prevent withdrawal. Moreover, the diameter of the side wall is expanded in two steps toward the opening end of the holder so that cans having two types of large and small diameters can be held, and the lower end of each step The aspect which forms the said engaging claw is disclosed.

  Furthermore, it is a cap for a beverage can in which a first locking portion and a second locking portion are formed in two steps on the inner surface of a cylindrical cap main portion having an open lower end, wherein the first locking portion Is provided on the inner surface of the lower end portion of the cap main portion so as to protrude in the circumferential direction, and the second locking portion is the inner surface of the cap main portion and above the first locking portion. A plurality of portions are provided along the circumferential direction so as to protrude higher inward than the portion, and the inner surface of the cap main portion partially protrudes inward from the upper end of the cap main portion to increase the thickness. And a thick portion extending to the second locking portion, wherein one of the first locking portion and the second locking portion is engaged with the upper end portion of the can. There is also a cap for beverage cans (Patent Document 4). Cans containing coffee and other beverages are designed to have the same outer diameter on the barrel of the can so that they can be sold in vending machines. Various shapes are manufactured by manufacturers. For example, a beverage can configured such that the upper end of the cylindrical body is substantially the same diameter as the cylindrical body, and the upper end of the cylindrical body is narrower than the outer diameter of the cylindrical body Beverage cans, and the constriction of the constriction so that the constriction has a small diameter stepwise from the cylindrical body to the upper end. Even if the cap for beverage cans described in Patent Document 4 is fitted through a winding fastening portion formed at the upper end of the cylindrical body, the outer diameter of the upper end of the cylindrical body is different. A locking part is formed in two stages so that it can be fitted.

Registered Utility Model No. 3051876 JP 2001-122277 A JP-A-8-301337 JP 2004-276975 A

  As described above, various cans having different outer diameters of the tightening portions have been manufactured and sold with premiums for the purpose of sales promotion. Under such circumstances, can caps that can be attached to cans having different outer diameters are desired, but Patent Document 1 and Patent Document 2 are fitted to the heads of cans having specific outer diameters. It is a can cap that can be worn, and it is difficult to attach it to cans of winding portions having different outer diameters.

  Further, the cap for cans described in Patent Document 3 prevents the removal from the holder by making the upper end of the engaging claw a specific shape. It is necessary to release the engagement between the engaging claw and the winding part of the cans by twisting. In order to facilitate recent weight reduction, thinning, and crushing after use, aluminum cans and the like are easily deformed. Therefore, a can cap that can be easily removed when the can cap is removed is desired.

  Further, the can cap described in Patent Document 4 is provided with a first locking portion and a second locking portion so that the cans can be attached to cans having different outer diameters. However, since the first locking portion is provided so as to protrude from the inner surface of the lower end portion of the cap main portion over the entire circumference in the circumferential direction, a large pressing force is required when getting over the winding portion of the cans. To do. The second locking portion is formed at the lower end of the thick portion extending from the upper end of the cap main portion to the second locking portion, and the can cap has rigidity due to the thick portion, so A large pressing force is also required when the part gets over the second locking part.

  Therefore, it is desired to develop a can cap that can be easily attached to the head or bottom of cans having different outer diameters of the winding tightening portion, can be prevented from coming off after attachment, and can be easily detached.

  As a result of a detailed study of a can cap that can be attached to a can having a different outer diameter of the winding portion, the inventor screwed the can cap onto the can cap body having a thread on the outer periphery and the screw. And forming a plurality of side walls extending stepwise at the lower end of the cap body, and forming a locking portion at the end of each side wall, Any one of the locking portions can be locked, and if the intermittent portion is formed in the vicinity of the lower ends of the plurality of stepped side walls, it is easy to lock the can to the winding portion, and then The present inventors have found that the can cap can be stably held by the can if the stopper is fixed by screwing the pressing ring, thereby completing the present invention.

  That is, the present invention relates to a can in which the upper and lower portions of the cylindrical body are sealed at the top surface and the bottom, respectively, and at least one of the upper end and the lower end of the cylindrical body has an annular winding portion on its outer periphery. A cap for a can that is detachably fitted via the winding fastening portion, and includes a cap body and a pressure ring that is screwed to the cap body. The cap body includes a top surface portion, the top surface portion, and the top surface. A first side wall suspended from the outer periphery of the surface portion, a second side wall having a larger inner diameter than the first side wall provided continuously with the first side wall, a continuous inner side with the second side wall, and an inner diameter from the second side wall The first side wall has a screw thread that is screwed to the pressing ring on the outer periphery, and the second side wall has a plurality of intermittent portions in the vicinity of the lower end portion. Is formed and protrudes from the lower end to the inside of the cap body. The third side wall has a second locking part that is connected to the second side wall and that projects from the lower end part to the inside of the cap body. And the connecting part of the first side wall and the second side wall is a thin-walled hinge, and the first locking part or the second locking part is engaged with the winding fastening part of the can, A cap for a can is provided, wherein the engaging portion is fixed by the pressing ring.

  Further, according to the present invention, the side wall portion has m stages (where n is an integer of 4 or more) having an inner diameter wider than the third side wall continuously provided to the third side wall (where m is 1). (It is an integer greater than or equal to the above.) The (n-1) locking portion that protrudes inward from the cap is formed at the lower end of the side wall of the nth side wall. The cap for cans is provided, wherein any one of the first to (n-1) locking portions is engaged with the winding fastening portion of the can.

  The cap for a can according to the present invention is characterized in that a plurality of claw portions are formed in the vicinity of the screw thread of the first side wall, and a gear portion that is engaged with the claw portion is formed on a pressing ring. Is to provide.

The present invention also provides the can cap, wherein the outer periphery of the second side wall has an inclination extending from the first side wall to the third side wall in a sectional view.
The present invention also provides a can cap, wherein the can cap body is made of a polyolefin-based resin.

  Further, in the present invention, the pressing ring has a screwed portion to be screwed with a thread of the cap body for the can, and a pressing portion for pressing the second side wall of the can cap body from the outer periphery toward the inside of the cap. A cap is provided.

In addition, the present invention provides a can cap for prizes which is the cap for cans and contains prizes therein.
In addition, according to the present invention, the upper and lower portions of the cylindrical body portion are sealed at the top surface portion and the bottom portion, respectively, and at least one of the upper end portion and the lower end portion of the cylindrical body portion has an annular winding portion on the outer peripheral edge thereof. The present invention provides a can with a cap in which the can cap is engaged with a can.

In the present invention, the prize is stored in the can cap for prize storage, and the upper and lower parts of the cylindrical body are sealed at the top surface and the bottom, respectively, and at least one of the upper end and the lower end of the cylindrical body is The present invention provides a can with a prize in which the above-mentioned can cap for storing prizes is fitted to a can having an annular winding portion on its outer peripheral edge.

  The can cap main body constituting the can cap of the present invention is composed of a top surface portion and a side wall portion that is suspended from the outer periphery of the top surface portion and expands in a stepped manner, and has an intermittent portion near the lower end portion. The locking part formed at the lower end of the side wall part easily gets over the winding part by the intermittent part, and can be easily attached to the can.

  The can cap of the present invention prevents the cap from falling off after being fitted to the can because the can ring can be screwed after the can cap body is locked to the can tightening portion. can do.

  The can cap main body constituting the can cap of the present invention has a stepped shape on the side wall and a locking portion formed at the lower end of each step. Can be stopped.

  The can cap of the present invention can be a can with a prize by storing a food toy inside thereof, the food toy is stably attached to the can by the circumferential elastic force, and the purchaser can press the ring. The cap for cans can be easily removed simply by removing the item, and a food toy can be obtained.

FIG. 1 is a side view of a pressing ring (A) and a can cap body (B) constituting the can cap of the present invention. FIG. 2 is a perspective view of the can cap (100) of the present invention in which the pressing ring (A) is screwed to the can cap body (B). FIG. 3 is a view for explaining a state in which a second locking portion (not shown) of the can cap (100) of the present invention is engaged with the winding fastening portion (220) of the single neck can (200). . FIG. 4 is a cross-sectional view of the can cap body (B) constituting the can cap (100) of the present invention. FIG. 5 is a plan view of the can cap body (B) used in the present invention, and is a diagram for explaining an aspect in which the intermittent portion (21) is formed on the outer periphery and the claw portion (15) is formed on the outer periphery. is there. FIG. 6 is a side view of the cap body (B) for cans used in the present invention. The first side wall (10), the second side wall (20), and the third side wall from the top surface (3) toward the lower end. (30) It is sectional drawing explaining the aspect which spreads in step shape and an intermittent part (21) is formed in a 2nd side wall (20) and a 3rd side wall (30). FIG. 7 is a partially enlarged view of the can cap main body used in the present invention, and is a view for explaining the first side wall, the second side wall, the third side wall, and other sizes. FIG. 8 is a partially enlarged view of the can cap body (B) used in the present invention, and is a view for explaining the claw portion (15). FIG. 9 is a partially enlarged view of the can cap body used in the present invention, and is a view for explaining an aspect in which the outer periphery of the second side wall (20) has an inclination. FIG. 10 illustrates an aspect in which the can cap (100) of the present invention is engaged with and fitted with a first locking portion (not shown) on the winding fastening portion (220) of the double neck can (200). FIG. FIG. 11 is a plan view of the pressing ring (A) of FIG. FIG. 12 is a cross-sectional view in which the pressing ring (A) is mounted on the can cap body (B). FIG. 13 is a partially enlarged view of FIG. 12, and is a diagram illustrating a mechanism of pressing by the pressing ring (A). FIG. 14 is a cross-sectional view of the pressing ring (A) used in the present invention, and is a view for explaining the gear portion (55) constituting the ratchet mechanism. FIG. 15 is a partially enlarged view of FIG. 14 and illustrates the gear portion (55). FIG. 16 is a cross-sectional view taken along the line YY of FIG. 12, and is a diagram for explaining the relationship between the claw portion (15) of the can cap body (B) and the gear portion (55) of the pressing ring (A). . FIG. 17 is a partially enlarged view of FIG. 16, and the gear part (55) of the pressing ring (A) and the can cap body (B) when the pressing ring (A) is mounted on the can cap body (B). It is a figure explaining the latching relationship of the nail | claw part (15).

  In the first aspect of the present invention, the upper and lower portions of the cylindrical body portion are sealed at the top surface portion and the bottom portion, respectively, and at least one of the upper end portion and the lower end portion of the cylindrical body portion has an annular winding portion on the outer peripheral edge thereof. A cap for a can that is detachably fitted through the winding tightening portion of the can, and includes a cap body and a pressure ring that is screwed to the cap body, and the cap body includes a top surface portion, A first side wall suspended from the outer periphery of the top surface, a second side wall having a larger inner diameter than the first side wall provided continuously to the first side wall, a second side wall provided continuously to the second side wall, and the second side wall; A side wall portion comprising a third side wall having a larger inner diameter, the first side wall has a thread threadedly screwed to the pressing ring on an outer periphery, and the second side wall has a plurality of portions in the vicinity of the lower end portion. Intermittent part is formed and formed to project inward of the cap body from the lower end part The third side wall has a second locking part that is connected to the second side wall and that projects from the lower end part to the inside of the cap body. And the connecting part of the first side wall and the second side wall is a thin-walled hinge, and the first locking part or the second locking part is engaged with the winding fastening part of the can, The cap for cans, wherein the engaging portion is fixed by the pressing ring.

The can cap has m-stages (where n is an integer of 3 or more), and the side wall portion has an inner diameter wider than the second side wall connected to the second side wall (where m is 1 or more). The n-1 locking portion formed to protrude inward of the cap is formed at the lower end portion of the thick portion of the side wall of the nth side wall. Any one of the first to (n-1) -th locking portions may be engaged with the can winding portion. The present invention will be described below with reference to the drawings.

(1) Cap for can The cap for cans of this invention consists of a press ring (A) and the cap main body (B) for cans screwed by the said press ring (A), as shown in FIG. The can cap (B) includes a top surface portion (3), a first side wall (10) suspended from an outer periphery of the top surface portion, and the first side wall provided continuously to the first side wall (10). A second side wall (20) having a larger inner diameter, and a side wall portion connected to the second side wall and including a third side wall (30) having a larger inner diameter than the second side wall, 20) and the third side wall (30) are formed with a plurality of intermittent portions (21), and the lower end portions of the second side wall (20) and the third side wall (30) are locking portions (25, 35), respectively. Is formed. Reference numeral 13 denotes a screw thread formed so as to protrude from the outer periphery of the first side wall (10), and reference numeral 15 denotes a gear portion (not shown) formed on the inner periphery of the pressing ring (A) and a ratchet mechanism. It is a nail | claw (15) which comprises. FIG. 2 shows a perspective view of the can cap (100) of the present invention.

  The can cap body (B) used in the present invention can be locked to the can winding portion by the locking portion, and the press ring (A) is screwed to the can cap body (B). And the interval between the intermittent portions (21) of the first side wall (10) and the second side wall (20) is narrowed, and the engagement between the winding portion (220) of the can (200) and the cap (100) for the can The stop can be fixed.

  FIG. 3 shows a side view of a can equipped with the can cap (100) of the present invention. The can (200) to which the cap for cans (100) of the present invention is attached has the top and bottom portions of the cylindrical body (210) sealed at the top and bottom, respectively, and the upper end of the cylindrical body (210). At least one of the lower end portions is a can (200) having an annular winding portion (220) on its outer peripheral edge. The cap (100) for cans of the present invention is detachably engaged through the winding tightening part (220).

In FIG. 3, although the aspect which mounts the cap for cans of the present invention via the 2nd latching part (not shown) of the 3rd side wall (30) to the winding fastening part (220) of the single neck can, Since the cap for cans (100) of the present invention has the first side wall (10) and the second side wall (20) having different inner peripheries, the cap (100) can also be locked to cans having different outer peripheral sizes. And the locking can be fixed by the pressing ring (A). Furthermore, a prize etc. can be accommodated in the said cap for cans (100), and it can be set as a can with a prize.

(2) Can As illustrated in FIG. 3, the can (200) to which the cap for cans (100) of the present invention can be attached has a cylindrical body (210), and the outer periphery of the upper end portion or the lower end portion thereof. The type of contents to be stored and the material of the can are not particularly limited as long as the winding part (220) is formed in the container. The cylindrical body (210) is preferably cylindrical. This is because it can be easily put into a vending machine.

  Moreover, the can (200) to which the cap for cans (100) of the present invention can be attached does not require that the cylindrical body part (210) has the same diameter over the entire length. A single neck that squeezes the lid of the can (200) in one step, a double neck that squeezes in two steps, a triple neck that squeezes in three steps, a smooth neck that squeezes with a smooth curve without forming a step, etc. It can be used for cans (200) of various shapes.

Moreover, the said cylindrical trunk | drum (210), a top | upper surface part, and a bottom part are not limited to what is called a three-piece can formed from a separate part, The cylindrical trunk | drum (210) and the bottom part were integrally formed. It may be a two-piece can. Since the two-piece can has the winding portion (220) at least on the top surface portion, the can cap (100) of the present invention can be engaged. In the three-piece can, a winding portion (220) is formed on the top surface portion and the bottom portion. The can cap (100) of the present invention may be mounted via any of the top and bottom winding tightening portions (220) of the can. Therefore, a mode in which the can cap (100) is attached to the bottom of the can is also possible.

(3) Cap for can The cap body (B) for cans of the present invention is arranged at the lower end of the first side wall (10), inward of the cap body (B), as shown in the sectional view of FIG. A second locking portion (35) having a first locking portion (15) formed so as to protrude, and also formed at the lower end portion of the third side wall (30) so as to protrude inward of the cap body. It is characterized by having. The inner diameter (φ2) of the second side wall (20) is wider than the inner diameter (φ1) of the first side wall, and the inner diameter (φ3) of the third side wall (30) is the inner diameter (φ2) of the second side wall. Therefore, even when the diameters of the can tightening portions are different, the cans can be locked through either the first locking portion (25) or the second locking portion (35). Reference numeral 21 denotes an intermittent portion described later.

In the present invention, the inner diameter (φ1) of the first side wall (10), the inner diameter (φ2) of the second side wall (20), and the inner diameter (φ3) of the third side wall (30) of the can cap (100) It can select suitably according to the outer diameter of the said winding fastening part (220) of the can (200) to mount. Hereinafter, the cap for cans according to the present invention is, for example, a cap for cans (100) that can be mounted on either a can (200a) having a 48 mm outer diameter or a can (200b) having a 52 mm outer diameter. In this example, the second side wall (20) and the third side wall (30) are connected to the first side wall (10). The inner diameter (φ2) of the lower end portion of the second side wall (20) of the cap body (B) for cans of the present invention is 48 ± 0.00 mm, which is substantially the same as the outer diameter of the tightening portion (220) of the can (200a). 7 mm, more preferably 48 ± 0.5 mm, and the inner diameter (φ3) of the third side wall (30) is 52 ± 0.7 mm substantially the same diameter as the outer diameter of the tightening portion (220) of the can (200b), More preferably, it is formed to 52 ± 0.5 mm. The inner diameter (φ1) of the first side wall (10) may be smaller than the inner diameter (φ2) of the second side wall (20), preferably 45 ± 0.7 mm, more preferably 45 ± 0.5 mm. is there. If the inner diameter (φ1) of the first side wall (10) is in the above range, promotional items and the like can be stored inside.

  The can cap (100) according to the present invention has a second side wall (20) and a third side wall (30) having different inner diameters, and the inner diameter of the tightening portion (220) of the can (200) to be mounted. Since the outer diameter is adjusted to be substantially the same diameter, either the first locking portion (25) or the second locking portion (35) formed on the second side wall (20) or the third side wall (30). Thus, the lower end portion of the tightening portion (220) can be locked and attached to any can. Since the cylindrical trunk | drum (210) of a can (200) has the lower end of the winding fastening part (220) formed in a shorter diameter than the said winding fastening part (220), the said latching | locking part (25, 35) is provided. After passing through the tightening portion (220), the protruding portion of the first locking portion (25) or the second locking portion (35) then supports the lower end of the winding tightening portion (220) and is stable. It can be locked to the winding fastening part (220).

In addition, the height of the cap (100) for cans is 19-53 mm, More preferably, it is 25-47 mm, The height (h1) of a 1st side wall (10) is 15-35 mm, More preferably, it is 15-30 mm The height (h2) of the second side wall (20) is 5 to 15 mm, more preferably 5 to 10 mm, and the height (h3) of the third side wall (30) is 5 to 20 mm, more preferably 8 ~ 15 mm. If it is the said range, it can mount | wear also to the double neck can which squeezed the side to cover by 2 steps | paragraphs, the triple neck can squeezed by 3 steps | paragraphs.

The can cap body (B) used in the present invention has a plurality of intermittent portions (21) formed in the vicinity of the lower end portion of the second side wall (20), and the third side wall (30) has the second side wall (20 ). A plan view of the can cap (B) shown in FIG. 1 is shown in FIG. FIG. 5 shows an aspect in which four intermittent portions (21) are formed on the second side wall (20) and the third side wall (30). Since the second side wall (20) and the third side wall (30) expand in the circumferential direction by forming the intermittent part (21), each locking part (25, 35) is a tightening part of the can (200). The pressing force when overcoming (220) can be reduced, and the can can be easily mounted.

The number of the intermittent portions (21) is not limited, but is 3 to 8, more preferably 3 to 6. When the number is less than three, there is little spread in the circumferential direction, and a pressing force may be required for mounting on the can. On the other hand, if the number exceeds eight, the lower end portion of the third side wall (30) may spread and not follow the outer periphery of the can. In addition, the position of the intermittent part (21) is not particularly limited, but it is preferable that the intermittent part (21) is uniformly formed on the outer periphery of the first side wall (10).

The intermittent portion (21) is formed in a wedge shape from the vicinity of the lower end portion of the second side wall (20) toward the first side wall (10) as shown in the side view of the pressing ring (A) in FIG. Is preferred. As described above, the height (h2) of the second side wall (20) is 5 to 15 mm, and the depth of the intermittent portion (21) is formed within the above range. Preferably, the gap (h4) between the lower end portion of the first side wall (10) and the top portion of the intermittent portion (21) is 0.2 to 0.35 mm, more preferably 0.25 to 0.3 mm. Form. If the gap (h4) exceeds 0.35 mm, the circumferential extension of the second side wall (20) may not be sufficient.

  The width (w1) of the wedge-shaped base of the intermittent part (21) in the second side wall (20) is 0.5 to 3.0 mm, more preferably 1.0 to 2.5 mm. If it is narrower than 0.5 mm, even if the pressing ring (A) is mounted after the locking portions (25, 35) of the can cap (100) are locked to the winding portion (220) of the can, It becomes difficult for the lower end part of 2 side walls (20) to be pressed inside a can. On the other hand, if the width exceeds 3.0 mm, the width of the wedge-shaped bottom side of the third side wall (30) connected to the second side wall (20) also increases correspondingly. The locking between the locking portions (25, 35) and the winding fastening portion (220) may not be stable.

  Furthermore, the width (w2) of the base of the intermittent part (21) at the lower end of the third side wall (30) is 2.0 to 8.0 mm, more preferably 3.0 to 6.0 mm. If it exceeds 8.0 mm, even if the pressing ring (A) is attached, the locking between the locking portions (25, 35) and the winding tightening portion (220) may not be stable. Even when the nth side wall is further connected to the third side wall (30), the width (wn) of the base of the intermittent portion (21) at the lower end of the nth side wall is 2.0 to 8.0 mm. Preferably it is 3.0-6.0 mm.

In the present invention, a screw thread (13) that is screwed to the pressing ring (A) is formed on the outer periphery of the first side wall (10). The pressing ring (A) is screwed through the screw thread (13). The number of rotations of the screw thread (13) is about 2 in FIG. 6, but is not limited to this. Preferably, it is 1.5 to 4 turns. If it exceeds 4 laps, it takes time to detach the pressing ring (A), while if it is less than 1.5 laps, the screwing of the pressing ring (A) may not be stable.

The present invention is characterized in that the first side wall (10) and the second side wall (20) of the cap body (B) for cans are connected in a thin portion.

  In FIG. 7, the partial expanded sectional view of the cap main body (B) for cans of this invention is shown. In the present invention, the thickness (T1) of the first side wall (10), the thickness (T2) of the second side wall (20), and the thickness (T3) of the third side wall (30) are the strength as a cap for cans. As long as the rigidity can be ensured, there is no particular limitation, and it can be appropriately selected according to the material used, but it is preferably 0.8 to 2.0 mm, more preferably 0.9 to 1.5 mm. If it is the said range, the 1st side wall (10), the 2nd side wall (20), and the 3rd side wall (30) may all be the same thickness, and may differ.

  Here, the thickness (T4) of the thin portion (23) is thinner than the thickness (T1, T2, T3) of the side wall, and is 0.2 to 0.35 m, more preferably 0.25 to 0.3 mm. It is. In the present invention, the intermittent portion (21) is formed on the second side wall (20) in order to facilitate the mounting to the winding portion (220), but with this alone, the lower end of the second side wall (20) is used for the can. The locking portions (25, 35) formed at the lower ends of the second side wall (20) and the third side wall (30) are not sufficiently widened in the circumferential direction of the cap body (B), so that the winding portion of the can It is difficult to get over and requires a large force when the can cap (100) is detached. However, when the first side wall (10) and the second side wall (20) are continuously provided by the thin wall portion (23), the thin wall portion (23) is connected to the first side wall (10) and the second side wall (20). It was found to function as a hinge. For this reason, when the can cap body (B) is attached to the can tightening portion, the lower end portion of the second side wall (20) extends in the circumferential direction via the intermittent portion (21), and the locking portion ( 25, 35) can easily get over the winding part (220) of the can and can be mounted with a small pressing force.

  In the present invention, the second sidewall (20) has a protruding height (h5) from the first locking portion (25), and the third sidewall (30) has a protruding height from the second locking portion (35). (H6) may be the same or different and is generally 0.5 to 1.2 mm. If it exists in this range, after mounting | wearing a press ring (A), a can and a cap for cans (100) can be fixed stably.

Further, the gap (h7) between the lower end of the first side wall and the upper end of the first locking portion (25) and the distance between the lower end of the first locking portion (25) and the upper end of the second locking portion (35) ( h8) is preferably 2.5 to 4.0 mm, respectively. Since the height of the tightening portion (220) of the can (200) is 2.0 to 4.0 mm, if the distance (h7, h8) is within the above range, the first locking portion (25) and the second When the lower end portion of the winding tightening portion (220) is locked by the two locking portions (35), the side wall of the winding tightening portion (220) is fitted into the gap (h7, h8), and the can cap (100 ) Can be prevented.

In the can cap body (B) of the present invention, as shown in FIG. 6, it is preferable that the claw portion (15) is formed at the lower end portion of the first side wall (10). A gear portion that can be engaged with the claw portion (15) is formed on the pressure ring (A) used in the present invention, and the claw portion (15) of the cap body (B) for the can and the gear of the pressure ring (A). When the ratchet mechanism is formed by the portion, the screwing of the can cap body (B) and the pressing ring (A) can be further stabilized.

  Although FIG. 5 shows an embodiment in which four claw portions (15) are formed, in the present invention, the number of claw portions (15) is not particularly limited and can be appropriately selected within a range of 3 to 10. it can. More preferably, it is 4-8. If it is this range, sufficient stability of screwing can be ensured, and manufacture is also easy. In addition, it is preferable that the nail | claw part (15) is uniformly formed in the outer periphery of a 1st side wall (10). In FIG. 5, the claw portion (15) and the intermittent portion (21) are arranged so as not to exist on the same radial line formed radially from the center of the top surface portion (3), but are limited to this. Not a thing.

In addition, the claw portion (15) needs to ensure screwing ease when the pressing ring (A) is mounted together with screwing fixation by a ratchet mechanism. FIG. 8 is a partially enlarged view of a plan view of the can cap body (B) shown in FIG. The claw portion (15) is formed with a rising angle (θ1) and a tailing angle (θ2) in the rotational direction when the pressing ring (A) is screwed in a plan view, and the rising angle (θ1)> A tailing angle (θ2) is preferable. Thereby, it can be easily screwed and the stability of screwing can be secured. Preferably, the rising angle (θ1) is 60 to 85 °, more preferably 70 to 85 °. The tailing angle (θ2) is 20 to 45 °, more preferably 25 to 40 °. In addition, it is preferable that the top part (15t) of the nail | claw part (15) which consists of a standup angle ((theta) 1) and a tailing angle ((theta) 2) is shape | molded by the circular arc. Moreover, the height (h9) of the nail | claw part (15) is 0.5-1.5 mm, More preferably, it is 0.7-1.2 mm.

In the present invention, the outer periphery of the second side wall (20) has a slope from the lower end of the first side wall (10) to the upper end of the third side wall (30) as shown in FIG. Is preferred. The thickness (T1, T2, T3) of the first side wall (10), the second side wall (20), and the third side wall (30) may be the same or different, and each inner diameter (φ1, As long as φ2, φ3) are in the above range, the outer circumference may be different. For this reason, the thickness (T2) differs between the upper end portion and the lower end portion of the second side wall as in the second side wall (20) of FIG. 9, and an inclination can be formed. That is, in the present invention, the can cap body (B) is mounted with the pressing ring (A) and pressed inward from the outer periphery of the second side wall (20) to fix the locking portion. A contact portion between (B) and the pressing ring (A) is required. When the pressing ring (A) is screwed onto the cap body (B) for the can, the pressing ring (A) can be moved by the rotation of the pressing ring (A) along the thread (13) of the cap body (B) for the can. It progresses toward the 2nd side wall (20) side from the top | upper surface part (3) side of the cap main body (B). When a slope extending from the lower end of the first side wall (10) to the upper end of the third side wall (30) is formed on the outer periphery of the second side wall (20), the second side wall accompanies the advancement of the pressing ring (A). (20) can be pressed, and the locking portion can be fixed.

In the present invention, the inclination angle (θ3) of the second side wall (20) is 50 to 80 °, more preferably 55 to 75 °. Within this range, the locking stability by the pressing ring (A) can be ensured within the range of the height (h2) of the second side wall (20).

1 to 9, for convenience, the side wall (20) of the can cap (100) includes a first side wall (10), a second side wall (20), and a third side wall (30). However, the present invention is not limited to this. The nth side wall (n is an integer greater than or equal to 4) whose inner diameter is wider than the third side wall (30) provided continuously to the third side wall (30) may be provided. In this case, the (n-1) th locking portion may be formed at the lower end of the nth sidewall. Such an nth side wall (n is an integer of 4 or more) can be formed in m stages (where m is an integer of 1 or more), and the size of the tightening portion of the can to be mounted. Depending on the type, it can be appropriately selected. Therefore, even when the nth side wall is further connected to the third side wall (30), the distance (h8) between the lower end of the first locking portion (25) and the upper end of the second locking portion (35). It is preferable that the space | interval corresponding to is also 2.5-4.0 mm. At this time, the overall length of the can cap (100) can also be appropriately selected according to the number of steps of the side wall.

The can cap body (B) of the present invention can be manufactured, for example, by injection molding, compression molding or the like of a thermoplastic resin. As the raw material resin, polyolefin resins such as polyethylene and polypropylene, polyester resins such as polyethylene terephthalate, polyamide resins and the like can be suitably used. Among these, polypropylene is preferable because of its excellent mechanical strength and excellent elasticity when the thin portion (23) functions as a hinge.

The top surface part (3) constituting the cap body (B) of the present invention may be flat as a whole, but as shown in FIG. 4, a recess (3a) is formed in the center part. It may be done. In the present invention, the thickness of the top surface portion (3) is substantially equal to or greater than the thickness of the side wall (T1, T2, T3), thereby ensuring circumferential strength. . On the other hand, the touch of the can cap body (B) can be improved by forming the depression (3a) at the center. For example, when forming the cap body (B) for cans by injection molding of a thermoplastic resin, a nozzle hole for injecting the raw material resin into the mold to be used is necessary, and the injection end of the raw material resin from such a nozzle hole The part may protrude. Such a nozzle hole is formed in the center of the top surface portion (3), and when the injection end portion of the raw material resin protrudes, the touch is lowered. Therefore, by forming a recess (3a) in advance in the portion corresponding to the nozzle hole of the top surface portion (3) in parallel with the thickness of the top surface portion (3), even if the injection end portion protrudes, the recess ( It is within the depth of 3a), and the touch can be improved without impairing the strength of the top surface portion (3).

In FIG. 10, a first locking portion (not shown) formed on the second side wall (20) is engaged with a winding tightening portion (220) of a double neck can (200), and the can cap ( 100) is shown. In the can cap body (B) of the present invention, the inner diameter of the third side wall (30) is wider than the outer diameter of the cylindrical body (210) of the double neck can.

(3) Pressing ring The pressing ring (A) used in the present invention is an annular material, and includes a screwed portion (50) that can be screwed to the can cap body (B), and the can cap body (B). A pressing portion (60) for pressing the second side wall (20) from the outer periphery toward the inside of the cap main body (B).

  FIG. 11 is a plan view of the pressing ring (A) of FIG. The pressing ring (A) has a screwed portion (50) screwed through the screw thread (13) of the cap body (B) for the can, and the inner diameter (φ4) at the lower end of the screwed portion (50) is The pressing portion (60) is configured to be narrower than the inner diameter (φ5) at the lower end.

  FIG. 12 is a sectional view showing a state in which the pressing ring (A) is screwed onto the can cap body (B). A thread (53) corresponding to the thread (13) of the can cap body (B) is formed on the inner periphery of the threaded portion (50).

When the pressing ring (A) used in the present invention is screwed onto the can cap main body (B), the pressing ring (A) is moved along the thread (13) of the can cap main body (B). It advances from the top surface part (3) of (B) toward the third side wall (30). In the present invention, when the outer periphery of the second side wall has an inclination extending from the first side wall to the third side wall in a sectional view, the second side wall (20) is pressed from the outer periphery as the pressing ring (A) advances. be able to. When the outer periphery of the second side wall (20) has such an inclination, it is preferable that the inner periphery of the pressing portion (60) of the pressing ring (A) also has an inclination corresponding thereto.

FIG. 13 shows a partially enlarged view of FIG. As described above, the inclination angle (θ3) of the outer periphery of the second side wall (20) is 50 to 80 °, more preferably 55 to 75 °. In order to fix the locking portion by pressing the second side wall (20) having such an inclination angle from the outer periphery, the inclination angle (θ4) of the inner periphery of the pressing portion (60) is 95 to 125 °. Preferably it is 100-120 degrees. More preferably, the total (θ3 + θ4) of the inclination angle (θ3) of the outer periphery of the second side wall (20) and the inclination angle (θ4) of the inner periphery of the pressing portion (60) is 150 to 178 °, more preferably 160 to 178 °. 175 °. If it is the said range, as shown in FIG. 13, the gap angle ((theta) 5) by the outer periphery of a 2nd side wall (20) and the inner periphery of a press part (60) will generate | occur | produce, and a press ring (A) will be screwed. The second side wall (20) is pressed from the outer periphery according to the gap angle (θ5) when traveling from the top surface (3) of the cap body (B) to the third side wall (30), and the locking portion ( 25, 35) can be stably fixed. From the preferable range of the total (θ3 + θ4) of the inclination angle (θ3) of the outer periphery of the second side wall (20) and the inclination angle (θ4) of the inner periphery of the pressing portion (60), the gap angle (θ5) is 2 to 2. 30 ° and 5 to 20 °.

The above illustrates the gap angle (θ5) by the outer circumference of the second side wall (20) and the inner circumference of the pressing portion (60) as the gap angle (θ5), and the outer circumference of the second side wall (20). Although the case where the inner periphery of the pressing portion (60) is formed in a substantially straight line is illustrated, the present invention is not limited to this. The same effect can be exhibited even when either one is formed by an arc instead of a straight line.

In the pressing ring (A) used in the present invention, when the claw portion (15) is formed on the cap main body (B), a gear portion corresponding to the claw portion (15) may be formed. preferable. In the present invention, the locking portions (25, 35) are fixed by the pressing ring (A). The pressing ring (A) is screwed through the thread (13) of the can cap body (B), but the thread (13) of the can cap body (B) and the screw of the pressing ring (A) The pressure ring (A) may be loosened only by screwing with the mountain (53). Therefore, the claw portion (15) is formed on the can cap body (B), and the gear portion (55) is formed at the corresponding portion of the pressing ring (A) to form a ratchet mechanism. Thereby, the latching | locking of a winding fastening part (220) and a latching | locking part (25, 35) can be fixed stably.

FIG. 14 is a sectional view taken along line XX of the pressing ring (A) shown in FIG. As shown in FIG. 14, the gear part (55) is formed in the inner periphery of the press ring (A). Reference numeral 63 denotes a knurl.

FIG. 15 shows a partially enlarged view of FIG. The size of each gear (55) is not particularly limited as long as it can lock the claw portion (15). Preferably, it is composed of a rising angle (θ6) and a tailing angle (θ7) in the rotation direction when the pressing ring (A) is screwed in a plan view, and the rising angle (θ6) <tailing angle (θ7). Thereby, it can be easily screwed and the stability of screwing can be secured. Preferably, the rising angle (θ6) is 20 to 45 °, more preferably 25 to 40 °. The tailing angle (θ7) is 60 to 85 °, more preferably 70 to 85 °. In addition, it is preferable that the top part (55t) which consists of a rising angle ((theta) 6) and a tailing angle ((theta) 7) is shape | molded by the circular arc. The height (h10) of the gear (55) is 0.4 to 1.3 mm, more preferably 0.6 to 1.2 mm, and the gear (55) is higher than the height (h9) of the claw portion (15). Preferably, the height (h10) is set low. When screwing the pressing ring (A), the contact resistance between the gear portion (55) of the pressing ring (A) and the claw portion (15) of the can cap body (B) is reduced, and mounting is facilitated. Because it can.

FIG. 16 is a cross-sectional view taken along line YY of FIG. The gear portion (55) formed on the pressing ring (A) is formed on any of the pressing rings (A) as long as the gear portion (55) meshes with the claw portion (15) of the cap main body (B) at the time of screwing. May be. In this invention, when the said nail | claw part (15) is formed in the lower end part of the 1st side wall (10) of the cap main body (B) for cans, it has a gear in the lower part of the thread (53) of a press ring (A). It is preferable to form a part (55). The gear portion (55) may be formed on either the screwed portion (50) or the pressing portion (60) of the pressing ring (A).

FIG. 17 shows a partially enlarged view of FIG. A ratchet mechanism is formed by the gear portion (55) of the pressing ring (A) and the claw portion (15) of the cap main body (B). In the present invention, when the pressing ring (A) is screwed to the cap body (B) for the can, the top portion (55t) of the gear portion (55) and the top portion (15t) of the claw portion (15) are height ( h11) It is preferable to overlap by 0.1 to 0.5 mm, more preferably 0.2 to 0.4 mm. Thereby, a ratchet mechanism acts effectively and it can avoid separation of screwing.

In the present invention, the pressing ring (A) can be produced by injection molding, compression molding or the like of a thermoplastic resin, like the cap body (B) for cans. As the raw material resin, polyolefin resins such as polyethylene and polypropylene, polyester resins such as polyethylene terephthalate, polyamide resins and the like can be suitably used. However, it is not necessary to be made of the same material as the can cap body (B), and may be a metal or the like.

In this invention, the width | variety of the press ring (A) which consists of a screwing part (50) and a press part (60) is 10-30 mm, More preferably, it is 12-25 mm. Within this range, a screw thread (53) corresponding to the screw thread (13) of the can cap body (B) is formed on the inner periphery, and a gear portion (55) constituting the ratchet mechanism is further formed. Can do.

In addition, as for the press ring (A) used by this invention, the knurl for slipping may be formed in the outer periphery, especially the outer periphery of a press part (60). 1 to 3 and FIGS. 14 to 17 illustrate the pressing ring (A) in which such a knurl is formed.

(4) Use The second aspect of the present invention is the can cap (100), which is a canister for storing prizes that can store prizes therein. As shown in FIG. 10, the height of the first side wall (10) is selected even when engaging with the winding fastening part (220) of the can (200) via the first locking part (25). Thus, an internal volume of 30 to 60 ml can be secured inside. For this reason, small food toys such as minicars and figures, beans, and other instructions can be stored and can be suitably used as a canister for storing prizes.

  According to a third aspect of the present invention, the upper and lower portions of the cylindrical body portion are sealed at the top surface portion and the bottom portion, respectively, and at least one of the upper end portion and the lower end portion of the cylindrical body portion is annularly wound around the outer periphery. It is a can with a cap by which the said cap for cans was engaged with the can.

  The can cap (100) of the present invention not only stores a food toy and is attached to the can (200), but is also attached to the can (200) to prevent contamination of the top surface of the can (200), for example. be able to. When a food toy or the like is not stored inside, the height of the first side wall (10) can be selected low. Since the drinking mouth touches the outside air with a vending machine, in an environment where contamination is a concern, it is expensive if the can cap (100) of the present invention is attached to the drinking mouth side of such a can (200) before opening. Safety can be ensured.

  According to a fourth aspect of the present invention, prizes are stored in the canister for storing prizes, and the upper and lower portions of the cylindrical body part (210) are sealed at the top and bottom parts, respectively, and the upper end of the cylindrical body part (210). The can with the prize (200) in which the can cap for prize storage is fitted to the can (200) in which at least one of the upper part and the lower end part has an annular winding part (220) on the outer peripheral edge thereof.

The difference from the third invention is that a premium such as a food toy is stored inside the can cap (100). The prize is stored in the can cap (100) in advance, and is attached to the can (200) in the same manner as described above. In this case, the purchaser can take out the prize by removing the can cap for prize storage in which the can (200) body is mounted. Moreover, after removing the cap (100) for cans, the tab can be pulled up to open the spout and the contents of the can (200) can be taken.

  ADVANTAGE OF THE INVENTION According to this invention, the cap for cans which can be mounted | worn with little pressing force to the can of different outer diameter, and is excellent in stability after mounting | wearing can be provided.

3 ... The top surface of the cap body for the can,
3a: depression in the top surface of the cap body for the can,
10: First side wall of the top surface of the cap body for the can,
20 ... the second side wall of the cap body for the can,
23: Thin portion of cap body for can,
25 ... 1st latching | locking part of the cap main body for cans,
30 ... the third side wall of the cap body for the can,
35 ... the second locking part of the cap body for the can,
50 ... Screwed part of the pressing ring,
60 ... the pressing part of the pressing ring,
100 ... cap for can,
200 ... cans,
210: cylindrical body of the can,
220 ... Can tightening part

Claims (5)

The upper and lower ends of the cylindrical body are sealed at the top surface and the bottom, respectively, and at least one of the upper end and the lower end of the cylindrical body is provided with the winding part of the can having an annular winding part on the outer periphery thereof. A cap for a can that is detachably fitted through,
A cap body and a pressing ring screwed onto the cap body;
The cap body includes a top surface portion, a first side wall suspended from the outer periphery of the top surface portion, a second side wall having a larger inner diameter than the first side wall continuously provided on the first side wall, and a second side wall. A side wall portion formed of a third side wall that is continuous and has a larger inner diameter than the second side wall;
The first side wall has a screw thread that is screwed to the pressing ring on an outer periphery;
The second side wall has a first locking portion formed with a plurality of intermittent portions in the vicinity of the lower end portion, and protruding from the lower end portion to the inside of the cap body,
The third side wall includes a second locking portion that is connected to the second side wall and that projects from the lower end portion to the inside of the cap body, and
The connecting portion of the first side wall and the second side wall is a thin hinge,
A cap for a can, wherein the first locking portion or the second locking portion is engaged with the winding fastening portion of the can, and the engaging portion is fixed by the pressing ring. The side wall portion has n stages (n is an integer of 4 or more) having an inner diameter wider than the third side wall provided continuously to the third side wall (where m is an integer of 1 or more). )
A (n-1) -th locking portion formed to protrude inward of the cap is formed at the lower end portion of the side wall of the n-th side wall,
The cap for cans according to claim 1, wherein any one of the first to (n-1) engaging portions is engaged with the winding portion of the can. The can cap according to claim 1 or 2,
A can cap for storing prizes that stores prizes inside.   A can wherein the upper and lower sides of the cylindrical body are sealed at the top and bottom, respectively, and at least one of the upper end and the lower end of the cylindrical body has an annular winding portion on the outer periphery thereof. A can with a cap to which the cap for can according to 2 is engaged. The prize is stored in the canister for storing prizes according to claim 4, and the upper and lower parts of the cylindrical body are sealed at the top and bottom, respectively, and at least one of the upper end and the lower end of the cylindrical body is A can with a prize in which the can cap for prize storage is fitted to a can having an annular winding portion on an outer peripheral edge.

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