JP5587633B2 - Opening / closing cap hinge connecting device and its cap and container - Google Patents

Description

  The present invention provides an opening / closing cap having an opening / closing spring piece capable of elastically opening and closing a cap body covering the opening with respect to a container-side cap base body having an opening, and having hinge connecting portions on both sides thereof. The present invention relates to a plastic hinge connecting device.

  Conventionally, this type of opening and closing cap has been used in powder containers such as seasonings, and it has an opening and closing spring piece in the center that can be opened and closed elastically with one touch. The distal end portion of the body side coupling body and the distal end portion of the coupling body on the cap body side are coupled by a bendable thin coupling portion, as described in Japanese Utility Model Laid-Open Nos. 59-66760 and 2007-62745. It has been conventionally known (see Patent Documents 1 and 2).

Japanese Utility Model Publication No.59-66760 JP 2007-62745 A

  Conventionally, with this kind of opening and closing cap used for a shaker container, for example, holding a cooking utensil etc. with one hand and picking up and holding the shaker container with the other hand, use the fingers of the gripped hand In many cases, the cap main body is opened with one touch to shake out the powder seasoning and the like in the container, and immediately after the spout, the cap main body is closed with its fingers or other fingers.

  By the cap opening / closing operation performed with this finger, the cap body is pushed obliquely, and the opening / closing force in the torsional direction is repeatedly applied to the hinge connection portion over a long period of time, and the thin-walled connection portion connecting the cap base body side and the cap body side connection body is stretched. If it is deformed, the cap opening / closing operation may not be performed smoothly, and the hinge connecting part having an opening / closing spring piece in the center that can open / close the cap body elastically without changing the basic structure or increasing the size. If it can be strengthened, the gap of the cap notch or the like is reduced, which is advantageous.

  The opening / closing spring piece provided at the center of the hinge connecting part is provided in a vertically long form at the back center of the opening / closing cap in the form of cutting out the cap base body and the cap body, and the spring joints at both ends thereof are the cap base body and the cap body. It is connected to bend freely. The open / close spring piece is cut into a large size so that the position of one of the spring joints reaches the top lid of the cap body, and the lid is quickly closed by applying a strong closing elasticity to the top lid. However, depending on the diameter and shape of the lid part, a gap is likely to be generated on the surface of the opening and closing spring piece and the lid part, because there is an advantage that can be reliably maintained. It is preferable that the lateral width of the opening / closing spring piece is made as small as possible to reduce the gap, and similarly, the width of the hinge connecting portions provided on both sides thereof is made narrower.

  Therefore, as described in claim 1, the present invention has an opening and closing spring piece that can open and close the cap body covering the opening with respect to the cap base body on the container side having the opening at the center, In a hinge coupling device for an opening / closing cap having plastic hinge coupling portions on both sides thereof, a thin-walled coupling portion capable of bending the distal end portion of the coupling body on the cap base body side and the distal end portion of the coupling body on the cap body side of the hinge coupling portion And an open / close cap hinge connecting device in which a thin reinforcing film body is integrally provided on a side portion of the thin connecting portion.

  Further, according to the present invention, as described in claim 2, in the hinge coupling device of the opening / closing cap according to claim 1, the thickness of the thin reinforcing film body is set to a thickness ratio with respect to the thickness of the thin coupling portion. An object of the present invention is to provide a hinge coupling device for an opening / closing cap provided at approximately 0.5 to 1.5.

  Further, according to the present invention, as described in claim 3, in the hinge coupling device for an opening / closing cap according to claim 1 or 2, the thickness of the thin reinforcing film body is thicker than the thickness of the thin coupling portion. It is an object of the present invention to provide a hinge coupling device for an opening / closing cap having a substantially identical ratio.

  Further, according to a fourth aspect of the present invention, in the hinge coupling device for an opening / closing cap according to the first, second, or third aspect, the thin reinforcing film body is integrally connected to the side portion of the coupling body. The present invention is intended to provide a hinge coupling device for an open / close cap.

  According to a fifth aspect of the present invention, in the hinge coupling device for an opening / closing cap according to any one of the first to fourth aspects, the thin reinforcing film body is located on a side portion of the base of the coupling body. An object of the present invention is to provide a hinge coupling device for an opening / closing cap that is integrally coupled to a base body and / or a cap body.

  Further, according to a sixth aspect of the present invention, in the hinge coupling device for an opening / closing cap according to any one of the first to fifth aspects, the thin reinforcing film body is connected to the opening / closing spring piece and the thin-walled coupling is provided. It is intended to provide a hinge connecting device for a cap provided on the outside of the portion.

  Further, according to the present invention, as described in claim 7, in the hinge coupling device for an opening / closing cap according to any one of claims 1 to 6, the length C of the peripheral portion 30a of the thin reinforcing membrane body is a thin coupling portion. It is intended to provide a hinge coupling device for an opening / closing cap provided at a ratio of approximately 1.2 times or more with respect to the width B of the end edge portion 5a.

  Further, according to the present invention, as described in claim 8, in the hinge coupling device for an opening / closing cap according to any one of claims 1 to 7, the thin reinforcing film body includes at least a central opening / closing spring piece and hinges on both sides thereof. An object of the present invention is to provide a hinge coupling device for an opening / closing cap manufactured by integrally molding a coupling portion and plastic.

  Further, according to a ninth aspect of the present invention, in the hinge coupling device for an opening / closing cap according to any one of the first to eighth aspects, the cap base body can be attached to a container that can be held with one hand, and the cap. It is an object of the present invention to provide a hinge coupling device for an opening / closing cap that can be opened / closed by a finger of a hand holding the container.

  Moreover, this invention intends to provide the opening-and-closing cap which has a hinge coupling device in any one of Claims 1 thru | or 9.

  Moreover, this invention intends to provide the container for foodstuffs equipped with the opening-and-closing cap of Claim 10, as described in Claim 11.

  Moreover, this invention intends to provide the container which attached the opening-and-closing cap of Claim 10 so that attachment or detachment was possible, and stored the content refillably.

  According to the hinge coupling device for an opening and closing cap according to the present invention, as described in claim 1, the opening and closing that can open and close the cap main body covering the opening with respect to the cap base body on the container side having the opening. In the hinge coupling device for an opening / closing cap having a spring piece in the center and plastic hinge coupling portions on both sides thereof, the distal end portion of the coupling body on the cap base body side of the hinge coupling portion and the distal end of the coupling body on the cap body side The hinge connecting portion is connected by repeated cap opening and closing operations by connecting the portion with a bendable thin connecting portion and by integrally forming a thin reinforcing film body on the side of the thin connecting portion. In contrast to the concentrated opening / closing bending action and torsional opening / closing force concentrated on the side part of the part, the twisted part is easily connected to the side part of the thin-walled connecting part that is easily cut off from the side end. Since the thin reinforcing film body is provided, the concentrated stress applied to the side of the thin connecting portion is dispersed and relaxed by the thin reinforcing film body. As a result, the hinge connecting portion is strongly reinforced by the thin reinforcing film body, and the hinge By strengthening the thin connection part of the connection part, as a result, the opening / closing spring piece provided in the center of the hinge connection part is protected from stretching and twisting, and the hinge connection part having the opening / closing spring piece in the center can be downsized, Basically, the structure of the hinge connecting portion can be strengthened without being altered or enlarged, and the cap opening / closing operation can be stably and smoothly continued for a long period of time.

  Further, according to the present invention, as described in claim 2, in the hinge coupling device of the opening / closing cap according to claim 1, the thickness of the thin reinforcing film body is set to a thickness ratio with respect to the thickness of the thin coupling portion. By having a configuration provided at approximately 0.5 to 1.5, the hinge connection portion is thinner than the thin connection portion, or is sufficiently reinforced by a thin reinforcing film body that can be bent integrally and is not so thick, There is an effect to be protected.

  Further, according to the present invention, as described in claim 3, in the hinge coupling device for an opening / closing cap according to claim 1 or 2, the thickness of the thin reinforcing film body is thicker than the thickness of the thin coupling portion. By having a configuration in which the ratios are substantially the same, the thin reinforcing membrane body and the thin connecting portion can be integrally formed at a low cost by a mold, and the thin reinforcing membrane body can be bent equally. It has the effect of being able to reinforce and protect.

  Further, according to a fourth aspect of the present invention, in the hinge coupling device for an opening / closing cap according to the first, second, or third aspect, the thin reinforcing film body is integrally connected to the side portion of the coupling body. By having a certain structure, there is an effect that the thin reinforcing film body can be easily bent together with the thin joint portion together with the thin joint portion.

  According to a fifth aspect of the present invention, in the hinge coupling device for an opening / closing cap according to any one of the first to fourth aspects, the thin reinforcing film body is located on a side portion of the base of the coupling body. By having a structure that is integrally connected to the base body and / or the cap body, there is an effect that the hinge connection composed of the connection body and the thin connection portion can be reinforced by the thin reinforcing film body.

  Further, according to a sixth aspect of the present invention, in the hinge coupling device for an opening / closing cap according to any one of the first to fifth aspects, the thin reinforcing film body is connected to the opening / closing spring piece and the thin-walled coupling is provided. By having the configuration provided on the outer side of the part, the thin reinforcing film body has an effect of strongly countering and reinforcing the torsional force applied to the hinge connecting part during the cap opening / closing operation on both the outer side of the connecting body and the thin connecting part. .

  Further, according to the present invention, as described in claim 7, in the hinge coupling device for an opening / closing cap according to any one of claims 1 to 6, the length C of the peripheral portion 30a of the thin reinforcing membrane body is a thin coupling portion. The edge portion 5a of the thin-walled connecting portion that receives repeated torsional force is more peripheral than the width B by having a configuration that is provided at a ratio of approximately 1.2 times or more with respect to the width B of the edge portion 5a. 30a has the effect of being reinforced and reinforced by the thin reinforcing film body having a length C that is 1.2 times or more.

  Further, according to the present invention, as described in claim 8, in the hinge coupling device for an opening / closing cap according to any one of claims 1 to 7, the thin reinforcing film body includes at least a central opening / closing spring piece and hinges on both sides thereof. By having the structure manufactured by the integral molding process of the connecting part and the plastic, there is an effect that the thin reinforcing film body can be easily manufactured by the integral molding process of the plastic together with the hinge connecting part of the opening / closing cap.

  Further, according to a ninth aspect of the present invention, in the hinge coupling device for an opening / closing cap according to any one of the first to eighth aspects, the cap base body can be attached to a container that can be held with one hand, and the cap. By having a configuration that allows the main body to be opened and closed elastically with the fingers of the hand holding the container, the hinge connecting portion reinforced with the thin reinforcing film body does not twist, so the cap opening and closing operation can be performed for a long period of time. There is an effect that can be performed smoothly.

  Moreover, this invention has the effect of providing the opening-and-closing cap which has a hinge coupling device in any one of Claims 1 thru | or 9.

  In addition, as described in claim 11, the present invention has an effect of providing a food storage container equipped with the opening / closing cap according to claim 10.

  In addition, as described in claim 12, the present invention has an effect of providing a container in which the opening / closing cap according to claim 10 is detachably mounted and the contents can be refilled.

The top view of one Example of this invention apparatus. The front view. FIG. 2 is a longitudinal sectional view taken along line AA in FIG. 1. FIG. 4 is an enlarged view of a main part of FIG. 3. The enlarged plan view of the principal part of FIG. The side view of the state in which the cap of the Example of FIG. 1 was closed. FIG. 6 is an enlarged view of a main part of FIG. 5. The front view of FIG. The top view of FIG. Explanatory drawing of FIG. The top view of the principal part of another Example. The enlarged view of the principal part of FIG. The top view of the principal part of another Example. The enlarged view of the principal part of FIG.

  The hinge coupling device 2 of the opening / closing cap 1 according to the present invention has an opening / closing spring piece 3 capable of elastically opening and closing the cap body 20 covering the opening 11 with respect to the cap base 10 on the container side having the opening 11. At the center and the hinge connecting portions 4 on both sides thereof. In the case of the illustrated embodiment, the opening portion 11 is opened by one small in the top plate portion 16, but one or a plurality of openings 11 can be appropriately arranged depending on the application.

  As shown in FIG. 2, the opening / closing cap 1 is held between a male mold and a female mold in an open state in which the cap receiving surface 12 of the cap base body 10 and the cap fitting surface 22 of the cap body 20 are horizontal. In this way, it is integrally molded by plastic injection molding.

  Accordingly, the hinge coupling device 2 is integrally formed of the same plastic as the cap base body 10 and the cap main body 20, and the coupling body of the hinge coupling section 4 on the cap base body 10 side located on both sides of the opening / closing spring piece 3. 13 and the tip of the connecting body 23 of the hinge connecting part 4 on the cap body 20 side are connected by a thin connecting part 5 that can be bent.

  As shown in FIG. 3, the opening / closing spring piece 3 is formed in a U shape so as to have contraction elasticity, and one end portion thereof is a spring that can be bent in the same manner as the cap base body 10 side and the thin-walled connecting portion. The other end portion is connected to the cap body 20 side by a bendable spring joint portion 7 in FIG. 2 or 3, and the spring joint portion 6 to the cap base body 10 side and the cap body in FIG. When the tensile elastic line 8 connecting the spring joint 7 on the 20 side is located outside the thin connecting portion 5 of the hinge connecting portion 4, an opening elastic force is applied to the cap main body 20 to keep the cap main body 20 in an open state. As shown in FIG. 8, when the cap body 20 is located on the inner side, a closing elasticity is applied to the cap body 20 to maintain the closed state of the cap body 20.

  The open / close spring piece 3 is quickly closed by applying a strong closing elasticity to the upper lid portion 25 so that the position of the spring joint portion 7 is largely cut to the upper lid portion 25 of the cap body 20. Although there is an advantage that the state can be reliably maintained, a gap is generated in the lid portion by a large cut in the upper lid portion 25. Therefore, the lateral width of the opening and closing spring piece 3 is made as small as possible to reduce the gap. At the same time, it is preferable that the widths of the hinge connecting portions 4 on both sides thereof be made narrower.

  In addition, the open state of the illustrated cap body 20 is a form immediately after the cap molding, and after the plastic is solidified, the cap body 20 is opened to about 120 degrees. In the closed state of the cap body 20, the cap receiving surface 12 of the cap base body 10 and the cap fitting surface 22 of the cap body 20 are elastically matched, and the cylindrical protrusion 21 is elastically fitted into the opening 11. Will be combined.

  Here, as shown in FIGS. 4 to 9, the hinge connecting device 2 of the opening / closing cap 1 according to the present invention is an outer portion of the thin connecting portion 5 that connects the intermediate portions of the connecting bodies 13 and 23 of the hinge connecting portion 4. Further, the thin reinforcing film body 30 is integrally formed. Therefore, even when the opening and closing force in the bending and twisting directions is concentrated and repeatedly applied to the outer portion of the thin connection portion 5 by the cap opening and closing operation, the thin reinforcing film body 30 integrally formed on the outer portion of the thin connection portion 5 The stress concentration is relaxed, and the thin connecting portion 5 is reinforced to the thin reinforcing film body 30. As a result, the thin connecting portion 5 is stretched and is not cut or deformed, so that the hinge connecting portion 4 is not deformed. As a result, the opening / closing spring piece 3 provided in the center of the opening / closing spring is prevented from being stretched or broken, and the opening / closing spring piece 3 and the hinge connecting portion 4 can be reduced in size, and the cap opening / closing operation can be performed. While being able to repeat smoothly, the possibility that the sealing performance of the cap may be lost can be prevented.

  In the case of the embodiment shown in FIGS. 11 and 12, the thin reinforcing membrane body 30 according to the present invention has an edge portion 5a of the thin connecting portion 5 of the hinge connecting portion 4 as shown in FIG. It is provided with the same thickness and is continuously joined integrally, and the peripheral portion 30b is integrally connected to the side portions 13a and 23a of the connecting bodies 13 and 23. As a result, the width B of the edge portion 5a of the thin connection portion 5 of the hinge connection portion 4 is expanded to the length C of the peripheral edge portion 30a of the thin reinforcing film body 30, and the end of the thin connection portion 5 of the hinge connection portion 4 is expanded. The torsional force concentrated on the width B of the edge portion 5a can be diffused to the peripheral edge portion 30a of the thin reinforcing film body 30, and the hinge connecting portion 4 can be remarkably strengthened against repeated loads. Further, the thin reinforcing film body 30 is configured to be easily bent around the thin connecting portion 5 integrally with the connecting bodies 13 and 23.

  In the case of the embodiment shown in FIGS. 13 and 14, the thin reinforcing membrane body 30 according to the present invention has an edge 5 a of the thin connecting portion 5 of the hinge connecting portion 4, as shown in an enlarged view in FIG. 14. It is provided with the same thickness and is integrally joined continuously. The second embodiment is different from the second embodiment in that the peripheral portion 30a of the thin reinforcing film body 30 is not joined to the side portions of the coupling bodies 13 and 23.

  As a result, as in the case of the second embodiment, the width B of the edge portion 5a of the thin connection portion 5 of the hinge connection portion 4 is expanded to the length C of the peripheral edge portion 30a of the thin reinforcing film body 30 to thereby connect the hinge connection. The torsional force concentrated on the width B of the edge 5a of the thin-walled connecting portion 5 of the portion 4 can be diffused to the peripheral edge 30a of the thin-walled reinforcing film body 30, and the hinge connecting portion 4 Can be strengthened. Further, since the thin reinforcing film body 30 is not integrated with the connecting bodies 13 and 23, the thin reinforcing film body 30 has a configuration that does not affect the bending of the hinge connecting portion 4 around the thin connecting portion 5.

  In the second and third embodiments, since the cap body 20 is configured to be elastically opened and closed by the opening / closing spring piece 3 located at the center of the hinge connecting portion 4, the thin reinforcing film body 30 is connected to the connecting bodies 13 and 23. It is preferable that the connecting bodies 13 and 23 be provided so as to bend smoothly with no resistance around the thin connecting portion 5 in accordance with the opening and closing operation of the cap body 20.

  In the embodiment shown in FIGS. 1 to 9, the thin reinforcing film body 30 provided by continuously joining the edge connecting portion 5 a of the thin connecting portion 5 of the hinge connecting portion 4 with substantially the same thickness is integrally formed. Extending or expanding like a wing at the side of the coupling bodies 13 and 23 of the hinge coupling portion 4 and the thin-walled coupling portion 5, as shown in an enlarged view in FIG. The portions 31 and 32 are integrally connected to the cap base body portion 14 and the cap main body portion 24 located on the side of the base portion of the connecting bodies 13 and 23. As a result, as in the case of the previous embodiment, the width B of the edge portion 5a of the thin connection portion 5 of the hinge connection portion 4 is expanded to the length C of the peripheral edge portion 30a of the thin reinforcing film body 30, and the hinge The torsional force that is concentrated on the width B of the edge 5a of the thin connecting portion 5 of the connecting portion 4 can be diffused to the peripheral portion 30a of the thin reinforcing film body 30, and the hinge connecting portion 4 can be subjected to repeated loads. It can be remarkably strengthened. In addition, the thin reinforcing film body 30 can be provided with an integral bendability with the hinge connecting portion 4.

  Further, in the embodiment of FIG. 4, it extends or expands like a blade on the side of the thin connecting portion 5 of the hinge connecting portion 4, and the both end portions 31 and 32 are connected to the side portions of the base portions of the connecting bodies 13 and 23. The thin reinforcing film body 30 according to the present invention, which is integrally connected to the cap base body portion 14 and the cap main body portion 24 which are positioned, is connected to the connecting bodies 13 and 23 side of the hinge connecting portion 4 as described in the second embodiment. It can be configured to be integrally connected to the portion.

  In the case of the fifth embodiment, the thin reinforcing film body 30 can be provided with an integral bendability with the hinge connecting portion 4, and the thin reinforcing film body 30 is used as one side portion of the hinge connecting portion 4, 23 can be regarded as a thin film structure, and there is an advantage that the hinge connecting portion 4 is reduced in size as a whole.

  In this fifth embodiment, as shown in FIG. 9, the thin reinforcing film body 30 having the same thickness and extending by the width d is provided on the side portion of the thin connection portion 5 having the width D, and the cap base body portion 14 and the cap main body portion. 24, and an open / close cap provided integrally with the connecting members 13 and 23, and a hinge connecting portion 4 in which the width D of the thin connecting portion 5 is extended by the width d of the thin reinforcing film body 30. As a comparative example, when the opening / closing cap made of the same material was used, the torque when twisted 12 degrees at 2 rpm until the hinge connecting portion was cut was measured. In the embodiment of the present invention, the torque and the time were about twice that of the conventional type. It was confirmed that there was strength.

  In the fifth embodiment, as in the previous embodiment, the thin reinforcing film body 30 is provided as a member that does not need to give opening / closing elasticity to the cap base body portion 14 and the cap main body portion 24. 20 is provided so that it can be smoothly opened and closed without resistance around the thin-walled connecting portion 5 without being affected by the thin-walled reinforcing film body 30 in accordance with the opening and closing operation.

  Further, the thin connecting portion 5 of the hinge connecting portion 4 shown in FIGS. 1 to 9 is provided on the outer surface side of the connecting bodies 13 and 23, and the thin reinforcing film body 30 is also provided on the outer surface side. 6, both end portions 31 and 32 are integrally connected to the outer surface side of the cap base body 10 and the cap main body 20. Accordingly, when viewed from the outer surface side, the thin reinforcing film body 30 is integrated with the thin connecting portion 5 and is also integrated with the hinge connecting portion 4, and the connecting body with the thin reinforcing film body 30 as one side portion of the hinge connecting portion 4. 13 and 23 can be regarded as a thin film structure, and there is an advantage that the hinge connecting portion 4 is reduced in size as a whole.

  In the hinge coupling device 2 of the opening / closing cap 1 of the above embodiment, the thickness of the thin reinforcing membrane body 30 is set to a thickness ratio of about 0.5 to 1.5 with respect to the thickness of the thin coupling portion 5. Yes, since the thickness of the thin reinforcing film body 30 is substantially equal to or thinner than that of the thin connecting portion 5, the thin connecting portion 5 can be bent flexibly equivalently or more flexibly to the thin connecting portion 5, The thin reinforcing film body 30 having a simple configuration can sufficiently reinforce and protect the thin connecting portion 5. Note that if the thickness ratio is less than 0.5, molding is difficult, and if it is 1.5 or more, flexibility is insufficient.

  In addition, in the above-described embodiment, the present invention has a configuration in which the thin reinforcing film body 30 is provided outside the connecting bodies 13 and 23 and the thin connecting portion 5 with respect to the central opening / closing spring piece 3. It is possible to strongly counter the torsional force applied to the hinge connecting portion 4 during operation.

  Further, the present invention is an embodiment in which the thin reinforcing film body 30 omitted in the drawing is provided inside the connecting bodies 13 and 23 and the thin connecting portion 5 with respect to the opening / closing spring piece 3, so that the thin reinforcing film body 30 is provided. The hinge connecting portion 4 can be reinforced between the outside of the opening / closing spring piece 3 and the inside of the connecting bodies 13 and 23 and the thin connecting portion 5.

  Further, according to the present invention, in the hinge connecting device 2 of the opening / closing cap 1, the length C of the peripheral portion 30a of the thin reinforcing film body 30 is a thin connecting portion as shown in FIG. 7, FIG. 12, or FIG. By having a configuration that is provided at a ratio of approximately 1.2 times or more with respect to the width B of the end edge portion 5a, the end edge portion 5a of the thin-walled connecting portion that repeatedly receives a torsional force is more peripheral than the width B. Is strengthened and reinforced by the thin reinforcing film body having a length C of 1.2 times or more.

  Further, according to the present invention, in the above-described embodiment, the thin reinforcing membrane body 30 includes at least the central opening / closing spring piece 3, the hinge connecting portions 4 on both sides thereof, the cap base body 10 on both ends 31 and 32, and the cap main body 20. At the same time, the thin reinforcing film body 30 can be easily manufactured together with the hinge connecting portion 4 by the plastic integral molding process by manufacturing the plastic integral molding process.

  Although the present invention is omitted in the figure, in the hinge coupling device 2 of the opening / closing cap 1, the cap base body 10 can be mounted on a container that can be grasped with one hand, and the cap body 20 is held by the hand that grasps the container. Since the hinge connecting portion 4 is not twisted or broken by using a configuration that can be opened and closed with fingers, the cap opening and closing operation can be smoothly and reliably performed with one hand. In FIG. 3, reference numeral 15 denotes a screw portion for mounting the cap base body 10 to the container opening neck.

  Further, according to the present invention, as shown in FIG. 10, in the hinge connecting device 2 of the opening / closing cap 1, the hinge connecting portion 4 is longer than the length L from the thin connecting portion 5 of the hinge connecting portion 4 of the cap body 20. The width W can be configured to be 50% or less, preferably 30% or less, and the connection bodies 13 and 23 of the hinge connection portion 4 can be configured to be small by the amount strengthened by the thin reinforcing film body 30.

  The present invention also provides an opening / closing cap having the hinge coupling device described in the above embodiment, and a container for containing foods such as spices and seasonings equipped with the opening / closing cap described in the above embodiment. Further, the present invention provides a container in which contents such as spices are refillably accommodated by detachably attaching the opening / closing cap described in the above embodiment.

DESCRIPTION OF SYMBOLS 1 Opening / closing cap 2 Hinge connection apparatus 3 Opening / closing spring piece 4 Hinge connection part 5 Thin connection part 6 Spring joint part 7 Spring joint part 8 Tensile elasticity line 10 Cap base body 11 Opening part 12 Cap receiving surface 13 Connection body 14 Cap base body part 20 Cap body 21 Tubular protrusion 22 Cap fitting surface 23 Connector 24 Cap body part 25 Upper lid part 30 Thin reinforcing film body 31 End part 32 End part

Claims (12)

A cap body that covers the opening is connected to the container-side cap base body having the opening by two plastic hinge connecting portions, and a cap main body is provided at the center of the two hinge connecting portions. in the hinge coupling device closing cap provided with a closing spring piece resiliently closing, the connection of the tip portion and the cap body thin connection portions bendable tip portion of the coupling body of the cap base side of the hinge connection portion And a hinge connecting device for an opening / closing cap , wherein a thin reinforcing film body is provided integrally with the thin connecting portion on a side portion of the thin connecting portion.   The hinge coupling device for an opening / closing cap according to claim 1, wherein the thickness of the thin reinforcing membrane body is approximately 0.5 to 1.5 with respect to the thickness of the thin coupling portion. Hinge coupling device.   The hinge coupling device for an opening / closing cap according to claim 1 or 2, wherein the thickness of the thin reinforcing film body is substantially the same as the thickness of the thin coupling portion. The hinge coupling device for an opening / closing cap according to claim 1, 2, or 3, wherein the peripheral edge portion of the thin reinforcing film body is not joined to the side portion of the coupling body. The hinge connection device for an opening / closing cap according to claim 1, 2, or 3, wherein the thin reinforcing membrane body is integrally connected to the side portion of the connecting body , the cap base body, or the cap body. apparatus.

  6. The hinge coupling device for an opening / closing cap according to claim 1, wherein the thin reinforcing film body is provided outside the coupling body and the thin coupling portion with respect to the opening / closing spring piece.   The hinge coupling device for an opening / closing cap according to any one of claims 1 to 6, wherein the length C of the peripheral edge portion 30a of the thin reinforcing membrane body is approximately 1.2 with respect to the width B of the edge 5a of the thin coupling portion. A hinge coupling device for opening and closing caps provided at a ratio of more than double.   8. A hinge coupling device for an opening / closing cap according to claim 1, wherein the thin reinforcing film body is manufactured by integrally molding at least a central opening / closing spring piece, hinge coupling portions on both sides thereof, and plastic. Hinge coupling device.   9. The hinge coupling device for an opening / closing cap according to claim 1, wherein the cap base body can be attached to a container that can be grasped with one hand, and the cap body can be elastically opened and closed with a finger of the hand that grasps the container. Possible hinge coupling device of opening and closing cap.   An opening / closing cap comprising the hinge coupling device according to any one of claims 1 to 9.   A container for food storage, to which the opening / closing cap according to claim 10 is attached.   A container in which the opening / closing cap according to claim 10 is detachably attached and the contents are refilled.

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