JP5359619B2 - Can cap and can with gift - Google Patents

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 beverage can cap so that the food toy placed on the top surface of the can body covers 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 cup fitted to cans, Comprising: The vertical groove which swells in several inside at equal intervals in the up-down direction of the cylindrical part hung inside from the outer periphery of the planar part of a cup is formed. In addition, there is also a promotional product storage cup for storing promotional items, in which the inner diameter of the cup 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 that bulge 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 cup 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 sawtooth profile in side view so that it engages with the lower edge of the tightening portion of cans, and both ends thereof are inclined toward the opening end side of the side wall portion to form a release portion. There is also a can holder made (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, cans with premiums are manufactured for the purpose of sales promotion, and there are various outer diameters at the upper end of the body of such cans. A can cap is desired. However, Patent Document 1 and Patent Document 2 are can caps that can be fitted to the heads of cans having a specific outer diameter, and are difficult to be mounted on cans of winding portions having different outer diameters. is there.

  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.

  Moreover, the cap for cans of patent document 4 is provided with a 1st latching | locking part and a 2nd latching | locking part so that it can mount | wear with the can of a different outer diameter. 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.

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

  The present inventor has studied in detail a can cap that can be attached to a can having a different outer diameter of the tightening portion. As a result, the can cap is suspended from the upper surface portion and the outer periphery of the upper surface portion, so If the thick wall portion and the thin wall portion are constituted by the side wall portions alternately arranged in the circumferential direction, the thin wall portion is deformed, so that an elastic force can be applied in the circumferential direction of the side wall portion, and a slight pressing force can be applied. A first side wall that is suspended over at least the outer periphery of the upper surface part, capable of holding over the coiled part of the can with pressure and retaining the locked state without detaching due to the elastic force; When the first locking portion and the second locking portion are formed on each side wall portion, each of the second locking portions can be attached to a can of a winding portion having a different outer diameter. In the thick part of the first side wall, the stopper is located on the upper surface side from the first locking part. To form a, since the positions of the first locking portion and a seamed portion can be fixed with a stopper, it found that can be retained for cans cap stably in a can, and completed 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 through the winding fastening portion,
An upper surface,
A plurality of thick portions and thin portions are alternately arranged in the circumferential direction. The first sidewall is suspended from at least the upper surface portion, and is connected to the first sidewall. A side wall portion having a second side wall having a larger diameter than the first side wall provided,
A plurality of second locking portions formed to protrude inward of the cap from the vicinity of the lower end of the thick portion of the second side wall;
A plurality of first locking portions formed to protrude inward of the cap from the vicinity of the lower end of the thick portion of the first side wall;
A stopper formed to protrude inward of the cap above the first locking portion of the thick portion of the first side wall ;
In the upper surface portion, the continuous portion with the side wall portion, a fraction of the thin portion of the side wall portion,
And / or a continuous portion between the first side wall and the second side wall of the side wall, wherein a through hole is formed in a fraction of the thin portion of the side wall,
A can cap is provided, wherein the first locking portion or the second locking portion is engaged with the winding fastening portion of the can.

According to the present invention, the side wall portion has m stages (where n is an integer of 3 or more) having a diameter larger than that of the second side wall provided continuously to the second side wall (where m is 1 or more). It is an integer of)
In the vicinity of the lower end of the thick portion of the side wall of the nth side wall, a plurality of nth locking portions formed to protrude inward of the cap are formed.
The can cap is characterized in that the second locking portion, the first locking portion or the n-th locking portion is engaged with the winding fastening portion of the can.

The present invention also provides a can cap for storing prizes, which is a cap for storing prizes.
Further, the present invention provides a can in which the upper and lower sides 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 an annular winding portion on the outer peripheral edge thereof. The present invention provides a can with a cap to which the can cap is fitted.

  Further, according to the present invention, a prize is stored in the canister for storing prizes, and 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 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 of the present invention is suspended from the outer periphery of the upper surface portion, and is composed of side wall portions in which a plurality of thick portions and thin portions are alternately arranged in the circumferential direction, so that elastic force is exerted in the circumferential direction. It is possible to reduce the pressing force for the locking portion to get over the winding tightening portion, and the mounting to the can is easy.

  Since the can cap of the present invention can exert an elastic force in the circumferential direction, a plurality of engaging portions are formed intermittently without forming the engaging portions over the entire circumference of the side wall of the can cap. However, it is possible to prevent the cap from falling off after fitting into the can.

  Since the cap for cans of the present invention is composed of a first side wall having the side wall portion suspended from the outer periphery of the upper surface portion, and a second side wall having a larger diameter than the first side wall, the second side wall has a second side wall. By forming the first locking portion on the first side wall, the locking portion can be locked to cans having different outer diameters. In addition, since a stopper is formed above the first locking portion and the can winding portion can be fixed in the gap between the first locking portion and the stopper, the stability of the can cap after the can cap is mounted. Excellent in properties.

  The can cap of the present invention can be a can with a prize by storing a food toy therein, the food toy is stably attached to the can by the circumferential elastic force, and the purchaser can By pulling the cap upward, the can cap can be easily detached and a food toy can be obtained.

FIG. 1 is a view for explaining a state in which the can cap of the present invention is mounted on the can, and the winding portion (220) on the top surface side of the can (200) is the inner periphery of the can cap (100). The aspect engaged with the 2nd latching | locking part (30) formed in 3 is shown. FIG. 2 is a half-cut perspective view of the can cap (100) of the present invention as seen from the upper surface. FIG. 3 is a half-cut perspective view of the can cap (100) according to the present invention as seen from the first side wall portion with the upper surface portion placed on the bottom. FIG. 4 shows a bottom view of the can cap (100) of the present invention. FIG. 5 is a bottom view of the can cap (100) of the present invention, in which the side wall portion (20) is deformed by extending the thin wall portion (23) linearly in the circumferential direction and extending in the circumferential direction. FIG. A one-dot broken line is an explanatory line showing a range of the thick part (21) and the thin part (23) in the side wall part (20). FIG. 6 shows that the side wall portion (20) of the can cap (100) of the present invention extends stepwise from the upper surface portion toward the lower end portion with the first side wall (20a) and the second side wall (20b). It is sectional drawing explaining the aspect by which multiple 1st latching | locking parts (40) and 2nd latching | locking parts (30) are each formed in a side wall (20a) and a 2nd side wall (20b). FIG. 7 illustrates the sizes of the second locking portion (30), the first locking portion (40), and the stopper (50) formed on the side wall portion (20) of the can cap (100) of the present invention. FIG. FIG. 8 is a cross-sectional view of the can cap (100) according to the present invention. The left and right side wall portions (20) suspended from the upper surface portion (10) are formed as thick portions (21), and the left side wall portion ( 20 shows a mode in which only the stopper (50) is formed and the second locking part (30), the first locking part (40) and the stopper (50) are formed on the right side wall part (20). FIG. 9 is a connection part with the side wall part (20) of the upper surface part (10) constituting the can cap (100) of the present invention, and is an image of the thin part (23) of the side wall part (20). It is a perspective view explaining the aspect in which a through-hole (15) is formed in minutes. A one-dot broken line is an explanatory line showing a range of the thick part (21) and the thin part (23) in the side wall part (20). FIG. 10 is a plan view of the can cap (100) of the present invention shown in FIG. A one-dot broken line is an explanatory line showing a range of the thick part (21) and the thin part (23) in the side wall part (20). FIG. 11 is a partial cutaway view taken along line AA in FIG. FIG. 12 (a) is a continuous portion with the side wall portion (20) of the upper surface portion (10) constituting the can cap (100) of the present invention, and is a thin portion (23) of the side wall portion (20). ) And a through hole (15) and a continuous portion of the first side wall (20a) and the second side wall (20b), and a fraction of the thin wall portion (23) of the side wall portion (20). It is a perspective view explaining the aspect in which a through-hole (15) is formed. A one-dot broken line is an explanatory line showing a range of the thick part (21) and the thin part (23) in the side wall part (20). Moreover, FIG.12 (b) is the fragmentary sectional view in the AA line of Fig.12 (a). FIG. 13 is a plan view of the can cap (100) of the present invention, and is a view for explaining a mode in which the through hole (15) of the upper surface portion (10) is extended and deformed linearly. A one-dot broken line is an explanatory line showing a range of the thick part (21) and the thin part (23) in the side wall part (20). FIG. 14: is a top view of the upper surface part of the cap for cans (100) of this invention, and is a figure explaining the aspect whose diameter is the same diameter as the diameter of a 1st side wall (20a). FIG. 15 is a plan view of the upper surface portion of the can cap (100) of the present invention, and is a view for explaining an aspect in which the diameter is the same as the diameter of the second side wall (20b). FIG. 16 is a cross-sectional view of the can cap (100) having the top surface portion (10) shown in FIG. FIG. 17 is a view for explaining a mode in which the can cap (100) of the present invention is engaged with the first locking portion (40) and attached to the winding portion (220) of the double neck can (200). It is. FIG. 18 shows a can cap (100) according to the present invention, in which the outer diameter (R3) of the cylindrical body (210) is 52.8 mm, the outer diameter (R4) of the tightening part (220) is 52.2 mm, It is a figure explaining the method of engaging with the single neck can (200) in case the outer diameter (R5) of a lower end part of a winding fastening part (220) is 50.5 mm. FIG. 19 shows the case where the can (200) cap of the present invention has an outer diameter (R3) of the cylindrical body (210) of 52.8 mm and an outer diameter (R4) of the tightening part (220) of 48.2 mm. It is a figure explaining the method of mounting | wearing a can (200) via a 1st latching | locking part (40).

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 portion of the can, the upper surface portion being suspended from the outer periphery of the upper surface portion, and a plurality of thick and thin portions in the circumferential direction. A side wall portion that is alternately arranged and includes a first side wall that is suspended from at least the upper surface portion, and a second side wall that has a larger diameter than the first side wall and that is continuous with the first side wall. , from the lower end vicinity of the thick portion of the second side wall, and a plurality of second engaging portions which are formed to protrude inwardly of the cap, from the vicinity of the lower end portion of the thick portion of the first side wall, said A plurality of first locking portions formed to protrude inward of the cap, and the first locking portion of the thick portion of the first side wall Upwards, together comprising a stopper that is formed to protrude inward of the cap, in the top portion, a connecting portion between the side wall portion, a fraction of the thin portion of the side wall portion, and / or A through hole is formed in a portion of the thin wall portion of the side wall portion, and the first locking portion is connected to the winding fastening portion of the can. It is a cap for cans characterized by engaging a part or a 2nd latching | locking part. The can cap has m stages (where n is an integer of 3 or more) having an n-th side wall (n is an integer of 3 or more) having a side wall portion wider than the second side wall provided continuously to the second side wall. of an integer.) and continuously provided constitutes, wherein the vicinity of the lower end portion of the thick portion of the sidewalls of the n side wall, the n locking portion more formed to protrude inward of said cap forming is, the second engagement portion on the seamed portion of the can, the first engagement portion or the n engaging portion may be one engaged. The present invention will be described below with reference to the drawings.

FIG. 1 shows an example of a mode in which a can cap (100) of the present invention is mounted on a can (200).
The can cap (100) of the present invention has a cylindrical body (210) whose upper and lower portions are sealed at the top and bottom, respectively, and at least one of the upper and lower ends of the cylindrical body (210) is The can (200) having an annular winding part (220) on the outer peripheral edge is detachably engaged through the winding part (220). The can cap (100) of the present invention is connected to the upper surface portion (10), at least the first side wall (20a) suspended from the outer periphery of the upper surface portion (10), and the first side wall. It has a side wall part (20) which consists of a 2nd side wall (20b) whose diameter is wider than the said 1st side wall. A plurality of first locking portions (40) are formed in the circumferential direction at the lower end of the first side wall (20a), and a plurality of second locking portions (40) in the circumferential direction are formed at the lower end of the second side wall (20b). A locking part (30) is formed.

FIG. 1 shows that the winding portion (220) on the top surface side of the can (200) is related to the second locking portion (30) formed at the lower end portion of the second side wall (20b) of the can cap (100). It is sectional drawing of the aspect combined. For the sake of convenience, the side wall (20) of the can cap (100) is composed of a first side wall (20a) and a second side wall (20b). In FIG. 1, reference numeral 50 denotes a stopper, and reference numeral 210 denotes a cylindrical body of the can.

  In the present invention, the can (200) has a cylindrical body part (210), and if the winding part (220) is formed on the outer periphery of the upper end part or the lower end part thereof, the kind of contents to be stored The material of the can (200) does not matter. 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.

  As shown in the half-cut perspective view of FIG. 2, the can cap (100) of the present invention comprises an upper surface portion (10) and a side wall portion (20) suspended from the outer periphery of the upper surface portion (10). A plurality of thick portions (21) and thin portions (23) are alternately arranged in the circumferential direction on the side wall portion (20), and the side wall portion (20) further includes the upper surface portion (10). The first side wall (20a) is provided vertically from the outer periphery of the first side wall, and the second side wall (20b) is wider than the first side wall (20a) connected to the first side wall. FIG. 3 shows a half-cut perspective view in which the upper surface portion (10) of the can cap (100) is placed downward. As shown in FIG. 2, a first locking portion (40) protruding inward is formed at the lower end of the thick portion (21) of the first side wall (20a), and the second side wall (20b) ) Of the thick part (21) is formed with a second locking part (30) projecting inward, and a stopper (50) is formed above the first locking part (40). The 2 and 3, for convenience, the side wall (20) of the can cap (100) is composed of a first side wall (20a) and a second side wall (20b). It is not limited to this. The side wall portion (20) may be configured by continuously providing an nth side wall (n is an integer of 3 or more) having a diameter larger than that of the second side wall provided continuously to the second side wall. Often. In that case, a plurality of n-th locking portions formed to protrude inward of the cap are locked to the lower end portion of the thick portion of the side wall of the n-th side wall. Further, such a stepped side wall can be formed in m steps (where m is an integer of 1 or more) from the nth side wall (n is an integer of 3 or more), and is scheduled to be mounted. It can select suitably according to the kind of size of the winding part of a can.

  Moreover, as shown in FIG. 3, the thick part (21) and the thin part (23) formed in the side wall part (20) are continuous from the upper surface part (10) to the lower end part of the second side wall (20b). Formed. When the can cap (100) according to the present invention further includes m-stage side walls (20n), the thick portion (21) and the thin portion (23) are nth from the upper surface portion (10). It is continuously formed up to the lower end of the side wall (20n).

  In the present invention, the inner diameter of the first side wall (20a) and the second side wall (20b) of the side wall part (20) of the can cap (100) is the same as the tightening part (220) of the can (200) to which the cap is mounted. Depending on the outer diameter, it can be selected appropriately. Hereinafter, the side wall part (20) composed of the first side wall (20a) and the second side wall (20b) will be described. However, when the nth side wall (20n) is continuously provided, the winding of the can to be mounted is similarly tightened. It can be selected appropriately according to the outer diameter of the part. Moreover, the height of the cap for cans (100) can also be suitably selected according to the presence / absence of an article stored therein, the size of the stored article, and the like.

  For example, the can cap (100) can be attached to both a can (200a) and a can (200b) having a 52 mm outer diameter of the tightening portion (220), and the side wall (20) is the first. For example, in the case of the first side wall (20a) and the second side wall (20b), the inner diameter of the lower end portion of the first side wall (20a) is substantially equal to the outer diameter of the tightening portion (220) of the can (200a). The same diameter is 48 ± 0.7 mm, more preferably 48 ± 0.5 mm, and the inner diameter of the second side wall (20b) is 53 ± about the same as the outer diameter of the winding part (220) of the can (200b). The thickness is 0.7 mm, more preferably 53 ± 0.5 mm. The cap (100) for cans of the present invention has a first side wall (20a) and a second side wall (20b) 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 (40) or the second locking portion (30) formed on the first side wall (20a) or the second side wall (20b). 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), if it is the said range, a locking part ( 30, 40) only needs to pass through the tightening portion (220), and thereafter, the protruding portion of the first locking portion (40) or the second locking portion (30) is the lower end of the tightening portion (220). And can be stably locked to the winding fastening part (220).

  The height of the cap (100) for cans is 19 to 53 mm, more preferably 25 to 47 mm, and the height of the first side wall (20a) is 15 to 45 mm, more preferably 20 to 40 mm. The height of the two side walls (20b) is 4 to 8 mm, more preferably 5 to 7 mm. Since the height of the tightening portion (220) of the can (200) is 2 to 4 mm, if the height of the second side wall (20b) is in the above range, the tightening portion is the second locking portion (30). Even when the lower end portion of (220) is locked, the side wall of the tightening portion (220) is fitted between the first locking portion (40) and the second locking portion (30), The cap (100) can be prevented from shaking.

  FIG. 4 shows a bottom view of the can cap (100). As shown in FIG. 4, the thick part (21) and the thin part (23) are arranged in the circumferential direction of the side part (20) on the side wall part (20) of the can cap (100) of the present invention. It is formed alternately. As shown in FIG. 3, the thick part (21) and the thin part (23) are each formed in a strip shape continuously from the upper surface part (10) to the lower end of the second side wall (20b). Since the thin part (23) is formed over the entire length from the upper surface part (20) of the side wall part (20) to the lower end of the second side wall (20b), the first locking part (40) and the second locking part Even when any of (30) gets over the tightening portion (220), the thin-walled portion (23) is deformed, and even if it is attached to any of the cans (200) of the tightening portion (220) having different outer diameters, It can be installed with little pressing force.

  The thick part (21) and the thin part (23) formed in the circumferential direction on the side wall part (20) reach from the upper surface part (20) to the lower end of the second side wall (20b) as shown in FIG. The number of the thick part (21) and the thin part (23) is not particularly limited, but it is 3 to 15 respectively in the case of the cap for a can (100) of the above size. Rows, more preferably 3 to 12 rows, particularly preferably 2 to 8 rows.

  At this time, the widths of the thick part (21) and the thin part (23) may be the same or different. Preferably, the width of the thin portion (23) relative to the width 1 of the thick portion (21) is 0.3 to 1.5, more preferably 0.6 to 1.2, and particularly preferably 0.6 to 1. 0. As described above, by forming the thin portion (23), elasticity can be imparted in the circumferential direction of the side wall portion (20), but the thin portion (23 with respect to the width 1 of the thick portion (21)). ) Exceeds 1.5, the winding part (220) and the engaging part may be disengaged with a slight force after mounting, while the thick part (21) has a width 1 On the other hand, if the width of the thin portion (23) is less than 0.3, the elasticity may not be sufficient.

  Further, the present invention is characterized in that the thick part (21) and the thin part (23) are formed and can be fitted with a small pressing force by deforming the thin part during mounting. Accordingly, the thickness of the thin wall portion (23) is not particularly limited as long as the strength as a cap can be ensured and can be deformed, and is also limited depending on the resin constituting the can cap. It is not a thing. In general, in the case of the cap for the above-mentioned size, when a polypropylene resin is used, it is 0.3 to 0.8 mm. Moreover, a thick part (21) is 0.8-1.2 mm.

  Moreover, in FIG. 4, the outer periphery of the side wall part (20) is configured to be smooth over the entire circumference, that is, the wall thickness is such that irregularities are alternately formed in the circumferential direction on the inner side of the side wall part (20). Although the aspect which a part (21) and a thin part (23) arrange | position is shown, it is not limited to this. Therefore, the aspect by which the said thick part (21) and the thin part (23) are arrange | positioned so that an unevenness | corrugation may be alternately formed in the circumferential direction on the outer side of the said side wall part (20) may be sufficient. In the present invention, since the first locking portion (40) and the second locking portion (30) are formed on the thick portion (21) by projecting inward of the cap, the locking portions are wound. Reduction of pressing force when getting over the tightening portion, stability of engagement between the lower end portion of the winding tightening portion and the locking portion, the first locking portion (40), the second locking portion (30), and the stopper (50 ), It is preferable that the thick part (21) and the thin part (23) are formed so as to be alternately uneven on the inside of the side wall part (20).

  In the present invention, since the thick wall portion (21) and the thin wall portion (23) are alternately formed in the circumferential direction on the side wall portion (20), as shown in FIG. , 40) gets over the winding part (220), the thin part (23) is pulled in the circumferential direction and deformed linearly, and the inner diameter of the side wall part (20) can be easily expanded, and there is little It can be attached to the can (200) with a pressing force. In FIG. 5, the shape of the 2nd side wall (20b) before a deformation | transformation is partially shown with a broken line. The deformation occurs only in the thin portion (23), and after the locking portion gets over the winding portion (220), it tries to restore the shape before expansion. Thus, in the cap for cans (100) of the present invention, an elastic force is exerted on the side wall portion (20) in the circumferential direction by a change due to expansion and contraction. For convenience, a one-dot broken line is inserted to indicate the range of the thick part (21) and the thin part (23) in the side wall part (20).

  As shown in the cross-sectional view of FIG. 6, the can cap (100) according to the present invention has a plurality of first locking portions (40) projecting inward from the lower end of the first side wall (20a). A plurality of second locking portions (30) are formed at the lower end portion of the second side wall (20b) so as to protrude inward of the cap. By forming the locking portions (30, 40) in the thick portion (21) having excellent rigidity, it is possible to ensure stability after engagement with the winding tightening portion (220). FIG. 6 shows a mode in which the left and right side wall portions (20) suspended from the upper surface portion (10) are thin-walled portions (23). ) And the second locking portion (30) are not formed.

  In the present invention, the second locking portion (30) does not need to be formed on all the thick portions (21). As shown in FIG. 4, the side wall portion (20) has six rows of thick portions (21a, 21b, 21c, 21d, 21e, 21f) and thin portions (23a, 23b, 23c, 23d, 23e, 23f). In this case, the second locking portions (30) may be formed only in the three rows of thick portions (21a, 21c, 21e) selected at equal intervals. Since the cap (100) for cans of the present invention exhibits a circumferential elastic force by the thick part (21) and the thin part (23) formed in the side wall part (20), the second locking part Even when (30) is intermittently engaged with the tightening portion (220), it can be easily engaged, and after engagement, the elastic force causes the side wall portion (20) to be tightened toward the inside of the cap. The can cap (100) can be stably held in the can (200).

  In addition, if the number of the 2nd latching | locking parts (30) illustrates in the case of the cap for cans (100) of the said size, it will be 2-8 pieces, More preferably, it is 3-6 pieces. The lateral width of the second locking portion (30) is within the range of the width of the thick portion (21).

  In the present invention, a plurality of first locking portions (40) are formed projecting inward from the lower end of the thick portion (21) of the second side wall (20b). Similar to the second locking portion (30), the first locking portion (40) does not need to be formed on all the thick portions (21). For example, when six rows of thick portions (21) and thin portions (23) are formed on the side wall portion (20), only the three rows of thick portions (21) selected at equal intervals are first. You may form a latching | locking part (40).

  In addition, in FIG. 4, although the 1st latching | locking part (40) and the 2nd latching | locking part (30) show the aspect formed in the thick part (21) of the same row, it is not limited to this. Absent. Therefore, when the wall portion (20) has six rows of thick portions (21a, 21b, 21c, 21d, 21e, 21f) and thin portions (23a, 23b, 23c, 23d, 23e, 23f). In addition, the second locking part (30) may be formed in the thick part (21a, 21c, 21e), and the first locking part (40) may be formed in the thick part (21b, 21d, 21f). .

  In addition, in this invention, it is preferable that a 1st latching | locking part (40) and a 2nd latching | locking part (30) are formed in the thick part (21) of the same row. This is because the winding fastening part (220) can be stably fixed by the gap formed by the second locking part (30) and the first locking part (40).

  In FIG. 7, sectional drawing of the 2nd latching | locking part (30), the 1st latching | locking part (40), and a stopper (50) which are formed in the thick part of a side wall part (20) is shown. The protruding height (h1) from the thick part of the second locking part (30) and the protruding height (h2) from the thick part of the first locking part (40) may be the same or different, Generally, it is 0.5 to 1.2 mm. If it is in this range, the winding part (220) of the can (200) can be overcome with a small pressing force.

  Moreover, the space | interval (h3) of a 1st latching | locking part (40) and a 2nd latching | locking part (30) is 2.5-3.5 mm. When the second locking portion (30) is engaged with the winding tightening portion (220) of the can (200), the side wall of the winding tightening portion (220) becomes the second locking portion (30) and the first locking portion. (40) is fixed, but if it is the said range, a winding part (220) will be stably fixed to the inner side of a 2nd side wall (20b), and the shake after an engagement etc. will be prevented. be able to. An n-th side wall (20n) connected to the second side wall (20b) is formed, and an n-th locking portion is provided at a step portion connecting the n-th side wall (20n) and the n + 1 side wall (20n + 1) side wall. When (20n) is formed, the interval between the stepped portions is preferably 2.5 to 3.5 mm. This is because shaking after engagement can be prevented.

  In the present invention, a stopper (50) protruding inward of the cap is formed above the first locking portion (40) of the thick portion of the first side wall. In the present invention, “above the first locking portion (40)” means between the upper surface portion (10) and the first locking portion (40), and the first locking portion (40). It means not included. Therefore, the stopper (50) is not connected to the first locking portion (40). The distance (h3 ′) between the first locking portion (40) and the stopper (50) is 2.5 to 3.5 mm, which is equal to or slightly larger than the height of the can winding portion. Similarly to the second locking portion (30), when the first locking portion (40) is engaged with the winding fastening portion (220) of the can (200), the side wall of the winding fastening portion (220) is the first. Although it is fixed between the locking part (40) and the stopper (50), within this range, the winding fastening part (220) is stably fixed inside the first side wall (20a) and It is possible to prevent the can cap (100) from shaking after joining.

  In this invention, the said stopper (50) is formed above the 1st latching | locking part (40) of the thick part (21) formed in a side wall part (20). However, the thick part (21) where the stopper (50) is formed is not limited to the thick part (21) where the first locking part (40) is formed. Therefore, it can form in all the thick parts (21), and it is preferable to form in all. Thereby, when the winding fastening part (220) of the can (200) is engaged via the first locking part (40), the side wall of the winding fastening part (220) is connected to the first locking part (40). Further insertion is avoided by the stopper (50) fixed in the gap with the stopper (50) and formed more than the number of the first locking portions (40), and the can cap (100) and the winding can be avoided. The fastening portion (220) can be stably fixed, and shaking after mounting can be prevented.

  The shape of the stopper (50) is not particularly limited as long as the stopper (50) can fix the winding part (220) after engaging the first locking part (40) with the winding part (220). Accordingly, it may have the same shape as the first locking portion (40), but as shown in FIG. 7, a rod-like object formed so as to protrude from the upper surface portion (10) to above the first locking portion (40). It may be. In this case, the total length of the stopper (50) is 8-42 mm, more preferably 14-36 mm. Moreover, as shown in the figure, the protrusion height of the stopper (50) may be uniform over its entire length, but it is lowered for a while from the top surface (10) toward the lower side of the first side wall (20a). It may be configured. At this time, the lowest protrusion height (h5) at the tip of the stopper (50) is 0.5 to 2 mm. The protruding height (h4) of the upper surface portion (10) is not particularly limited as long as it can be easily formed by, for example, injection molding. By securing a high protrusion height (h4) of the upper surface portion (10), the rigidity of the can cap (100) can be ensured, and by forming a low protrusion height (h5) at the lower end, the weight can be reduced. Can be achieved.

  FIG. 8 shows an aspect of the can cap (100) shown in FIG. 6 in which the left and right side wall portions (20) suspended from the upper surface portion (10) are thick portions (21). . The first locking portion (40) and the second locking portion (30) are not formed on all the thick portions (21). Therefore, the left locking portion (30) ) And the first locking part (40) are not formed, only the stopper (50) is formed, and the right side wall part (20) has the second locking part (30), the first locking part (40) and A stopper (50) is formed.

  The can cap (100) of the present invention can be manufactured, for example, by injection molding or compression molding 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 in that it is excellent in mechanical strength and easily gives an elastic force in the circumferential direction of the side wall portion (20) by the thick portion (21) and the thin portion (23).

  Although the whole upper surface part (10) which comprises the cap (100) for cans of this invention may be uniformly flat, as shown in FIG. 8, a hollow (13) is formed in the center part. It may be a thing. In the present invention, the thickness of the upper surface portion (10) is configured to be approximately equal to or greater than the thickness of the thick portion (21), thereby ensuring circumferential strength. On the other hand, the touch of the can cap (100) can be improved by forming the depression (13) at the center. For example, when the can cap (100) is formed by injection molding of a thermoplastic resin, a nozzle hole for injecting the raw material resin into the mold to be used is required, and the injection end portion of the raw material resin from such a nozzle hole May protrude. Such a nozzle hole is formed in the center of the upper surface portion (10), and when the injection end portion of the raw material resin protrudes, the touch is lowered. Therefore, by forming a recess (13) in advance in a portion corresponding to the nozzle hole of the upper surface portion (10) in parallel with the thickness of the upper surface portion (10), even if the injection end portion protrudes, the recess ( 13), the upper surface portion (10) is adjusted to a uniform thickness over the entire upper surface portion (10) as shown in FIG. It is possible to improve the touch without damaging the strength.

  Further, the upper surface portion (10) constituting the can cap (100) of the present invention is a continuous portion with the side wall portion (20), and is a thin portion (23) of the side wall portion (20). A through hole (15) may be formed in the fraction. Six rows of thin portions (23a, 23b, 23c, 23d, 23e, 23f) are formed on the side wall portion (20), and the thin portions (23a, 23b, 23c, 23d, 23e, 23f) of the upper surface portion (10) are formed. FIG. 9 is a perspective view of a can cap (100) in which through holes (15) are formed in the vicinity of FIG. 10, and FIG. 10 is a plan view thereof. In these, the range of the thick part (21) and the thin part (23) in a side wall part (20) is shown with a dashed-dotted line. The through hole (15) is formed in the vicinity of at least one of the thin portions (23a, 23b, 23c, 23d, 23e, 23f), and more preferably, all the thin portions (23a, 23b, 23c, 23d). , 23e, 23f). Further, as shown in FIGS. 9 and 10, the through hole (15) is preferably formed to have the same width as the thin portions (23a, 23b, 23c, 23d, 23e, 23f). FIG. 11 is a partial cross-sectional view taken along line AA in FIG. 9. As shown in FIG. 11, when the through hole (15) is formed in the upper surface portion (10), the upper surface portion (10) and the side wall portion ( 20) is disconnected. The thin-walled portion (23) extends and deforms in the circumferential direction when the first locking portion (40) and the second locking portion (30) get over the winding fastening portion (220), but the through-hole (15 ), The thin portion (23) is deformed with less force, and the can (200) can be more easily mounted.

  The cap for a can of the present invention has a caliber at least from a first side wall (20a) suspended from the upper surface (10) and the first side wall (20a) connected to the first side wall (20a). A wide second side wall (20b) is provided, and a stepped portion is formed at a connecting portion between the first side wall (20a) and the second side wall (20b). The can cap of the present invention is a step portion constituting a continuous portion of the first side wall (20a) and the second side wall (20b), and a through-hole ( 15) may be formed. This aspect is shown in FIG. In FIG. 12 (a), a stepped portion (35) is formed in a continuous portion between the first side wall (20a) and the second side wall (20b), and each thin portion (23) of the stepped portion (35) is formed. A through hole (15) is formed in each minute. A cross-sectional view taken along line AA in FIG. 12A is shown in FIG. In the present invention, the side wall portion (20) is not limited to the first side wall (20a) and the second side wall (20b), and a plurality of side wall portions can be additionally provided. In such a can cap, a through-hole (15) is formed in a fraction of the thin portion of the step portion, which is a step portion constituting a continuous portion of the nth side wall and the (n + 1) th side wall. It may be a thing.

  The through hole (15) formed in the thin wall portion (23) may be formed in any one step, or may be formed in all the step portions. FIG. 12 shows an embodiment in which the through hole (15) is formed in both the upper surface portion (10) and the step portion (35). However, the first side wall (20a), the second side wall (20b) and the like are connected. The through hole (15) may be formed only in any stepped portion constituting the installation portion. As shown in FIG. 11, when the through hole (15) is formed in the upper surface portion (10) or the stepped portion, the upper surface portion (10) and the side wall portion (20) are connected, for example, the first side wall Since the connection between (20a) and the second side wall (20b) is cut, the cap for the can expands and deforms in the circumferential direction when the locking part gets over the winding part (220), and there is less Mounting to the can (200) is facilitated by force.

  In FIG. 13, when any one of the locking portions (30, 40) gets over the winding fastening portion (220), the through-hole (15) of the upper surface portion (10) is formed along with the extension of the thin-walled portion (23). The mode which is extended | stretched and deform | transformed linearly is shown. In FIG. 13, the shapes of the upper surface portion (10) and the first side wall (20 a) before deformation are indicated by broken lines, and the range between the thick portion (21) and the thin portion (23) in the side wall portion (20) is indicated by a one-dot broken line. It shows with. Since the upper surface portion (10) is also deformed by forming the through hole (15), it can be attached to the can (200) with less pressing force. The deformation occurs only in the thin-walled portions (23a, 23b, 23c, 23d, 23e, 23f), and after the locking portion gets over the winding fastening portion (220), a contraction phenomenon occurs in the shape before expansion. Thus, in the cap for cans (100) of the present invention, an elastic force is exerted on the side wall portion (20) in the circumferential direction by a change due to expansion and contraction.

  Moreover, it is preferable that the diameter of the upper surface part (10) of the cap (100) for cans is substantially the same diameter as the diameter of the 1st side wall (20a), as shown in FIG. FIG. 14 shows a plan view of a can cap (100) in which the diameter of the surface portion (10) is substantially the same as the diameter of the first side wall (20a). This is because it is easy to manufacture by injection molding.

  On the other hand, as shown in FIG. 15, the diameter of the upper surface portion (10) may be the same as the diameter of the second side wall (20b). FIG. 16 shows a cross-sectional view of the can cap (100) in which the upper surface portion (10) and the second side wall (20b) have the same diameter.

  As shown in FIG. 16, if the upper surface part (10) of the can cap (100) protrudes outward and the diameter of the lower end part of the second side wall (20b) is the same, the can cap (100) can be obtained. When it rolls over, it can roll linearly. Therefore, even when the can (200) equipped with the can cap (100) is stored in the vending machine, the can (200) rotates linearly in the apparatus and can be discharged stably from the vending machine. it can.

  In the can cap (100) of the present invention, the side wall (20) is composed of a first side wall (20a) and a second side wall (20b) having different diameters. Since the plurality of second locking portions (30) are formed on the second side wall (20b) having a large diameter, the first locking portion (40) is formed on the winding portion (220) of the can (200). Either the two locking portions (30) or the first locking portions (40) can be engaged and mounted. FIG. 17 shows an aspect in which the can cap (100) of the present invention is mounted by engaging the first locking portion (40) with the winding fastening portion (220) of the double neck can (200).

  The second of the present invention is the can cap (100) described above, which is a can cap for prize storage that can store a prize inside. As shown in FIG. 17, the height of the first side wall (20a) is selected even when engaging with the winding fastening part (220) of the can (200) via the first locking part (40). 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 (210) 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 (210) is the outer peripheral edge. It is a can with a cap (200) by which the said cap for cans (100) was fitted by the can (200) which has an annular winding part (220).

  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 (20a) 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.

A method of mounting the cap (100) made of polypropylene resin of the present invention on the can (200) will be described.

Example 1
The can cap (100) of the present invention having the following specifications was used.

The inner diameter (R1) of the first side wall (20a) is 48 mm, the height is 26 mm,
The inner diameter (R2) of the second side wall (20b) is 52 mm, the height is 6.5 mm,
The width of the thick part (21) at the lower end of the second side wall (20b) is 14 mm,
The width of the thin wall portion (23) at the lower end of the second side wall (20b) is 13.2 mm,
The height of the first locking part (40) is 0.6 mm, and the thick part (21) is three at regular intervals.
The second locking part (30) has a height of 0.6 mm, and the thick part (21) has three at regular intervals.
A gap (h3) 3 mm between the second locking portion (30) and the first locking portion (40),
The height of the stopper (h5) is 2 mm, the gap with the first locking part (40) is 3 mm, and the total thickness part (21) is six.

The specifications of the single neck can (200) are as follows.
The outer diameter (R3) of the cylindrical body (210) is 52.8 mm,
The outer diameter (R4) of the winding tightening part (220) is 52.2 mm,
The outer diameter (R5) of the lower end portion of the outer diameter (R4) of the tightening portion (220) is 50.5 mm.

  A mode in which the can cap (100) is mounted via the second locking portion (30) will be described with reference to FIG. In addition, a tab is formed on the top surface portion of the can (200), and a spout is formed by pulling up the tab.

  First, the lower end portion of the second side wall (20b) of the can cap (100) is pressed from above the tightening portion (220) of the can (200) in which the tightening portion (220) is formed on the outer periphery. By this pressing, the lower end portion of the first side wall (20b) having an inner diameter (R2) of 52 mm gets over the winding portion (220) having an outer diameter (R4) of 52.2 mm. At this time, the thin wall portion (23) of the second side wall (20b) made of the thermoplastic resin extends and deforms, so that the outer periphery of the winding portion (220) can be overcome with a slight pressing force. In particular, in the present invention, since only the second locking portions (30) are formed at the lower end portion of the second side wall (20b), it is easy to get over the outer periphery of the winding tightening portion (220). is there.

  Thereafter, the lower end of the tightening portion (220) is engaged with the second locking portion (30) protruding at a height of 1 mm. In addition, after the second locking portion (30) gets over the outer periphery of the tightening portion (220), the thin-walled portion (23) contracts to the original state, but the can tightening portion (220) of the can (200). Since the outer diameter (R4) of 52.2 mm is thicker than the inner diameter (R2) of 52 mm of the second side wall (20b) of the can cap (100), the can is generated by the restoring force generated in the circumferential direction of the side wall (20). A contraction force toward the center of (200) is generated, and the winding portion (220) is stably held by the contraction force. Moreover, a first locking portion (40) is formed above the second locking portion (30) with a gap (h3) of 3 mm, and the position of the tightened portion (220) after engagement is held in this gap. Therefore, the can cap (100) is stably engaged without wobbling. In addition, the pressing force at the time of engaging with this 2nd latching | locking part (30) was 5.0-10.0 kgf by the measuring method mentioned later.

When the can cap (100) is pulled upward from this state, the engagement between the second locking portion (30) and the winding fastening portion (220) is released, so that the can cap (100) is removed from the can (200). ). In addition, the tensile force in this case was 2.0-7.0 kgf by the measuring method mentioned later. After removing the can cap (100), the tab of the can (200) can be pulled up to open the spout, and the contents can be ingested.

(Example 2)
Next, a mode in which the cylindrical body portion is attached to the double neck can (200) having the throttle portion toward the top surface portion will be described with reference to FIG.

The specifications of the double neck can (200) are as follows.
The outer diameter (R3) of the cylindrical body (210) is 52.8 mm,
Outer diameter (R4) 48.2 mm of the tightening portion (220),
The outer diameter (R5) 46.5 mm of the lower end of the outer diameter (R4) of the tightening portion (220),
The outer diameter (R6) of the throttle part is 48.1 mm,
7 mm gap between the lower end of the tightening portion (220) and the lower end of the throttle portion.

  Unlike the can, the can (200) has an outer diameter of the tightening portion (220) as small as 4.1 mm. When the can cap (100) is pressed, the second side wall (20b) having an inner diameter (R2) of 52 mm passes through the outer diameter of the tightening portion (220) having an inner diameter (R4) of 48.2 mm, and the can cap (100 ) Is pressed, the lower end portion of the first side wall (20a) having an inner diameter (R1) of 48 mm gets over the winding portion (220) having an inner diameter (R4) of 48.2 mm. At this time, since the thin wall portion (23) of the first side wall (20a) made of the thermoplastic resin is stretched and deformed, the outer periphery of the tightening portion (220) can be overcome with a slight pressing force.

  Thereafter, the lower end of the tightening portion (220) is engaged with the first locking portion (40) protruding at a height of 0.6 mm. In addition, after the first locking portion (40) gets over the outer periphery of the tightening portion (220), the thin-walled portion (23) contracts to the original state, and the tightening portion (220) of the can (200). Since the outer diameter (R4) 48.2 mm is thicker than the inner diameter (R1) 48 mm of the first side wall (20a) of the can cap (100), the can (by the restoring force generated in the circumferential direction of the side wall (20) ( 200) is generated toward the center, and the winding portion 220 is stably held by the contraction. In addition, the pressing force at the time of engaging with this 1st latching | locking part (40) was 5.0-10.0 kgf by the measuring method mentioned later.

  A stopper (50) is formed 3 mm above the first locking part (40), and the tightened part (220) after engagement is in the gap between the first locking part (40) and the stopper (50). Since it is held, the can cap (100) is stably engaged without wobbling.

  When the can cap (100) is pulled up from this state, the engagement between the first locking portion (40) and the tightening portion (220) is released, so that the can cap (100) is removed from the can (200). You can leave. In addition, the tensile force in this case was 2.0-7.0 kgf by the measuring method mentioned later.

  Note that the inner diameter (R2) of the second side wall (20b) is 52 mm and is wider than the outer diameter (R6) of the can (200), which is 48.1 mm. Therefore, the second side wall (20b) has a cylindrical body ( 210) and does not get in the way.

Thus, according to the can cap (100) of the present invention, the can ( 200).

(Measuring method)
(1) Pushing force Using the can used in Example 1 and Example 2 and the cap for cans attached to the can, the following measurement was performed using a push-pull gauge measuring instrument.

  A metal plate having a length of 50 mm, a width of 80 mm, and a thickness of 5 mm was placed on the upper surface of the can cap to prevent deformation of the can cap, and the strength when pressed with a push-pull gauge was measured. In addition, about the same can, the cap for five cans was mounted | worn, and the pressing force was measured about each. The numerical values in Examples 1 and 2 are average values.

(2) Tensile force The cans used in Examples 1 and 2 and the cap for cans attached to the cans were measured by using a push-pull gauge measuring instrument as follows.

A pulling hole was formed in the center of the upper surface of the can cap, and the push-pull gauge was hooked up to pull up, and the tension when the push-pull gauge was pulled up was measured. In addition, about the same can, the cap for five cans was mounted | worn and the tensile force was measured about each. The numerical values in Examples 1 and 2 are average values.

  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.

10 ... the upper surface of the cap for the can,
13 ... a depression in the upper surface of the can cap,
15 ... a through hole in the upper surface of the cap for the can,
20: Side wall of cap for can,
20a ... 1st side wall of the cap for cans,
20b ... the second side wall of the cap for the can,
21 ... Thick part formed on the side wall of the cap for cans 23 ... Thin part formed on the side wall of the cap for cans,
30 ... second locking part,
35 ... a step portion constituting a continuous portion of the first side wall and the second side wall of the cap for cans,
40: first locking portion,
50 ... stopper,
100 ... cap for can,
200 ... cans,
210: cylindrical body of the can,
220 ... Can tightening part

Claims (7)

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,
An upper surface,
A plurality of thick portions and thin portions are alternately arranged in the circumferential direction. The first sidewall is suspended from at least the upper surface portion, and is connected to the first sidewall. A side wall portion having a second side wall having a larger diameter than the first side wall provided,
A plurality of second locking portions formed to protrude inward of the cap from the vicinity of the lower end of the thick portion of the second side wall;
A plurality of first locking portions formed to protrude inward of the cap from the vicinity of the lower end of the thick portion of the first side wall;
A stopper formed to protrude inward of the cap above the first locking portion of the thick portion of the first side wall ;
In the upper surface portion, the continuous portion with the side wall portion, a fraction of the thin portion of the side wall portion,
And / or a continuous portion between the first side wall and the second side wall of the side wall, wherein a through hole is formed in a fraction of the thin portion of the side wall,
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. 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,
An upper surface portion;
A plurality of thick portions and thin portions are alternately arranged in the circumferential direction. The first sidewall is suspended from at least the upper surface portion, and is connected to the first sidewall. A side wall portion having a second side wall having a larger diameter than the first side wall provided,
A plurality of second locking portions formed to protrude inward of the cap from the vicinity of the lower end of the thick portion of the second side wall;
A plurality of first locking portions formed to protrude inward of the cap from the vicinity of the lower end of the thick portion of the first side wall;
A stopper formed to protrude inward of the cap above the first locking portion of the thick portion of the first side wall;
The side wall portion has m stages (where n is an integer of 3 or more) having an aperture that is wider than the second side wall provided continuously to the second side wall (where m is an integer of 1 or more). )
In the vicinity of the lower end of the thick portion of the side wall of the nth side wall, a plurality of nth locking portions formed to protrude inward of the cap are formed.
The n-th side wall and the (n + 1) -th side wall of the side wall part, wherein a through hole is formed in a fraction of the thin part of the side wall part,
A cap for a can characterized in that the second locking portion, the first locking portion or the nth locking portion is engaged with the winding fastening portion of the can. The side wall portion has m stages (where n is an integer of 3 or more) having an aperture that is wider than the second side wall provided continuously to the second side wall (where m is an integer of 1 or more). )
In the vicinity of the lower end of the thick portion of the side wall of the nth side wall, a plurality of nth locking portions formed to protrude inward of the cap are formed.
The can cap according to claim 1, wherein the second locking portion, the first locking portion or the n-th locking portion is engaged with the winding fastening portion of the can. 4. The can according to claim 3 , wherein a through hole is formed in a fraction of the thin wall portion of the side wall portion, which is a continuous portion of the nth side wall and the (n + 1) side wall of the side wall portion. Cap. It is a cap for cans in any one of Claims 1-4 , Comprising :
A can cap for storing prizes that stores prizes inside. In a can in which 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 part on the outer periphery thereof . A can with a cap to which the cap for can according to any one of 4 is fitted. The prize is stored in the can cap for prize storage according to claim 5 , and the upper and lower sides of the cylindrical body are respectively sealed at the top surface and the bottom, 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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