JP2006160372A - Lid for container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lid for container having an outer surface and an inner surface that can be contacted with a container to be closely sealed and showing advantages of high sealing characteristic, high strength and easy manufacturing and easy operation. <P>SOLUTION: A lid 1 is made of a silicone material, the lid 1 includes a central part 2 and an outer circumferential part 3 enclosing the central part 2, a thickness range of the outer circumferential part 3 is 2.0 mm to 4.0 mm and the thickness of the central part 2 exceeds the thickness of the outer circumferential part 3. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a container lid.

  Currently, many series of containers, such as baskets, trays, etc., are wrapped and sealed with a freshness-keeping film to store food, and the freshness-keeping film must be removed and discarded before the food is removed. , It is burdensome for the environment. Therefore, the method of storing food using such a disposable freshness-keeping film is insufficient for environmental protection.

  In addition, some plastic trays that normally store food and hard plastic lids that are used as ancillary, when installed on plastic trays, are used for food in the hard lid plastic tray. Since the sealing action is not strong, for example, the odor of food in the plastic tray easily leaks to the outside, or the food in the plastic tray rapidly changes due to poor sealing, and the taste changes.

  Based on the above existing technology, a main object of the present invention is to provide a lid for a container that can exhibit a good sealing effect.

  It is a further object of the present invention to provide a lid that not only has high sealing performance, but also has high strength and various uses, and is easy to manufacture and operate.

  In order to achieve the above object, the present invention provides a container lid having an outer surface and an inner surface that can come into contact with a container to be sealed, the lid being made of a silicon material, Including the outer peripheral part surrounding the central part, the thickness range of the outer peripheral part is 2.0 mm to 4.0 mm, and the thickness of the central part exceeds the thickness of the outer peripheral part.

  About the lid, the lid is made of an elastic material, for example, a silicon material, has an appropriate thickness, and the central portion of the lid is relatively thick, so that the lid is sealed so that the outer peripheral portion is horizontal. When placed on a container, for example, a basket, the lid will sink slightly under the action of gravity in the center or just by pushing the center part a little with your hand. appear. After the negative pressure is formed, the inner surface can form a tight contact state with the contact portion of the container, so that the negative pressure is maintained and the sealed state of the container is maintained in the container. . This type of silicon lid can be used repeatedly in many types of containers having different dimensions, and when the lid is applied, the container sealing effect is significantly improved. Also, this kind of lid is particularly suitable when the object in the container must be kept warm because the silicon material has good thermal insulation. Further, since the lid is made of a silicon material, the lid can be cleaned with, for example, a dishwasher.

  According to one embodiment, the lid has a circular sheet shape, the central portion is circular, the outer surface protrudes from the outer peripheral portion, and the central portion protrudes. A stagnation portion is formed on the surface. Here, the circular sheet-like lid is particularly suitable for tableware, such as a bowl, a dish, etc., and when the negative pressure is high, when the empty container or a container that is not very heavy is lifted, the stagnation part Since the container can be easily lifted by hand, the container is operated by the lid when the temperature of the container is very high or very low and is not suitable for direct hand holding. It becomes possible.

  In addition, a convex ear is formed on a local portion of the outer peripheral portion, and the convex ear extends from the periphery of the outer peripheral portion. Since the convex ear can open the lid very easily, the operation of the lid is simplified.

  In a preferred embodiment of the present invention, an annular transition region is provided between the central portion and the outer peripheral portion, and the transition region has the outer surface with respect to the outer peripheral portion, and the inner surface of the transition region. The side is recessed to protrude with respect to the outer peripheral portion, and the thickness of the transition region is equal to or substantially less than the thickness of the outer peripheral portion, and the connection between the transition region and the central portion A plurality of strength bones are formed on the outer surface side of the part. In this embodiment, the depression structure of the transition region is very suitable for the lid to rely on its own gravity to automatically acquire the sealing effect, and at the same time the transition region and the central part are Since the connection part between the two is reinforced, the strength of the lid is improved. Here, it is preferable that the number of these strength bones is 8 to 18 and is uniformly distributed in the circumferential direction of the central portion.

  In addition, a plurality of stiffeners can be provided on the outer peripheral portion of the outer surface. When both the outer peripheral portion and the connection portion are provided with styluses, the number of stiffeners is equal to the number of styluses, and these stiffeners are aligned with the stylus in the radial direction of the lid, respectively. In addition, it is preferable that the stiffener is displaced from the radial bone in the radial direction, and it is easy to manufacture a lid having this type of reinforcing structure.

  According to another embodiment, a plurality of reinforcing ribs are provided on a portion where the transition region of the inner surface is in contact with the outer peripheral portion. In that case, a plurality of reinforcing ribs are provided on a portion where the transition region of the inner surface is in contact with the outer peripheral portion, the number of the reinforcing ribs is equal to the number of the ribs, and the reinforcing ribs are respectively It is preferable that the lid is positioned in the radial direction of the lid, and the lid can be arranged at a shifted position, so that the lid having this type of reinforcing structure can be easily manufactured. And the strength is further improved.

  Further, the stagnation part has a horizontal single-letter shape and is formed so as to project integrally on the projecting surface of the central part. In this way, the stagnation part can be easily formed. The shape of the stagnation part is not limited to a single horizontal shape, and it is also possible to form a stagnation part by forming a cylindrical protrusion at the part. The inner surface has the same surface glossiness within the entire range, and in this way, the processing is simple.

  Further, the diameter of the transition region allows the bottom of the container to be placed over the transition region and the central portion, and the size of the lid is such that the bottom of the container is above the lid. It is allowed to be installed, so that the lid can be used as an underlay. When the lid is used as an underlay, the heat insulating property of the silicon material is effectively exhibited.

  In addition, the outer surface and the inner surface at the outer peripheral portion are not parallel to the outer surface and the inner surface at the central portion, respectively.

  The sealed heat insulation structure for a container lid of the present invention has advantages such as high sealing performance, high strength, and easy manufacture and operation.

As described above in detail, in the present invention,
“A lid (1) for a container having an outer surface (5) and an inner surface (6) in contact with the container to be sealed, the lid (1) made of silicon material, The central part (2) and the outer peripheral part (3) surrounding the central part (2) are included. The thickness range of the outer peripheral part (3) is 2.0 mm to 4.0 mm, and the central part (2) Must be greater than the thickness of the outer periphery (3) "
The main feature of the structure is to provide a lid (1) for a container which not only has high sealing performance but also has high strength and various uses and is easy to manufacture and operate. Can do it.

  FIG. 1 shows an embodiment of a lid 1 according to the present invention. Since the lid is made of a silicon material, it is flexible and elastic. In the embodiment, the lid 1 has a circular sheet shape, and includes a central portion 2, an outer peripheral portion 3 surrounding the central portion 2, and a transition region 4 between the central portion 2 and the outer peripheral portion 3. The lid 1 includes an outer surface 5 and an inner surface 6 that can come into contact with a container (not shown) to be sealed. The thickness of the outer peripheral portion 3 is 2.0 mm to 4.0 mm, the thickness of the central portion 2 is greater than the thickness of the outer peripheral portion 3, and the inner surface 6 of the lid 1 is at three locations on the outer peripheral portion. It is relatively glossy. Here, the surface can be polished by, for example, machining a silicon circular sheet.

  The lid 1 can be in the form of a circular sheet, and other shapes such as a square, an ellipse, etc. can also be used. When presenting a circular sheet shape, it is preferable that the central portion 2 is circular and the outer surface 5 side of the central portion protrudes from the outer peripheral portion 3. Further, a stagnation part 8 is formed on the protruding surface 7 of the central part 2. In the embodiment shown in FIG. 1, the stagnation part 8 is formed so as to project as a unit on the projecting surface 7 of the central part 2 in the form of a horizontal letter. However, the stagnation part 8 can also have a cylindrical shape, a rectangular parallelepiped shape, a spherical shape, or the like. In addition, since the convex ear 9 is formed on the local part of the outer peripheral part 3, and the convex ear extends from the peripheral edge of the outer peripheral part 3, the user operates the lid 1 using the convex ear 9. It is possible.

  The annular transition region 4 formed between the central portion 2 and the outer peripheral portion 3 is not essential. When the transition region 4 is formed, the transition region 4 is depressed to the extent that the outer surface 5 side protrudes from the outer peripheral portion 3 and the inner surface 6 side of the transition region 4 protrudes from the outer peripheral portion 3. Here, the thickness of the transition region 4 is equal to or substantially less than the thickness of the outer peripheral portion 3, and a plurality of transition regions 4 are formed on the connection portion between the transition region 4 and the central portion 2 on the outer surface 5 side. It is preferable that the strength bone 10 is formed. It is preferable that the number of the strength bones 10 is 8 to 18 and is uniformly distributed in the circumferential direction of the central portion 2. In addition, the outer surface 5 can include a plurality of stiffeners 11 on the outer peripheral portion 3. The number of the stiffeners 11 is equal to the number of the strength bones 10, and the stiffeners 11 are aligned with the strength bones 10 in the radial direction of the lid 1 as shown in FIG. Is preferred. In that case, the inner surface 6 can also be provided with a plurality of reinforcing ribs 12 on the part where the transition region 4 is in contact with the outer peripheral part 3 as shown in FIG. Here, it is preferable that the number of the reinforcing ribs 12 is also equal to the number of the strength bones 10, and the reinforcing ribs 12 are aligned with the strength bones 10 and / or the stiffeners 11 on the radial direction of the lid 1, respectively. Thereby, the strength of the lid 1 as a whole is further improved. There are no particular restrictions on the shape, quantity, and position of the strength bone 10, the stiffener 11 and the reinforcing rib 12, and the quantity of 8-18 illustrated above is only a priority plan.

  In the present invention, the surface glossiness of the inner surface 6 at the two central portions and the transition region 4 can be made equal to the surface glossiness of the inner surface 6 at the three outer peripheral portions. Helps simplify processing. In addition, it is preferable that the outer surface 5 and the inner surface 6 at the three outer peripheral portions are not parallel to the outer surface 5 and the inner surface 6 at the two central portions as shown in FIGS. Yes, when the central portion 2 protrudes on the outer peripheral portion 3, it is preferable that the outer surface 5 and the inner surface 6 are inclined and extended in the protruding direction from the outer peripheral portion 3 toward the central portion 2. is there.

  When the lid 1 is installed so that the outer peripheral portion 3 is positioned horizontally on the container to be sealed, for example, on the ridge, the lid 1 is slightly depressed below the gravity of the central portion 2 or by slightly pushing the central portion 2 by hand. Therefore, a part of the air in the container is exhausted and negative pressure is generated. After the negative pressure is formed, the inner surface 6 forms a close contact state with the contact portion of the container, so that the negative pressure is maintained and the sealed state of the container is maintained in the container. This type of silicon lid can be used repeatedly for many types of containers having different dimensions, and when the lid is applied, the sealing effect of the container is significantly improved. Also, since the silicon material has good thermal insulation, this kind of lid 1 is particularly suitable when the object in the container must be kept warm. Furthermore, since it is made of a silicon material, the lid 1 can be cleaned with a dishwasher, for example.

  The lid 1 can also be used for other purposes. If the diameter of the transition region 4 is set so as to allow the bottom portion of the container, for example, the inner side of the ridge, to be placed on the transition region 4 and the central portion 2, it can be installed securely. Here, the good thermal insulation performance of the silicon material is effective. The size of the lid 1 also allows the bottom of the container to be placed on the entire lid. In addition, the lid of the present invention covers the pan surface of the cooking pan during cooking to prevent oil droplets from splashing. There is no adverse effect. In practice, the lid according to the invention has many different uses.

  Here, the present invention has been described based on examples, but the present invention is not limited to the above examples. The technical features mentioned in the description and the attached drawings can become new protection themes, either alone or in other combinations.

It is a front view of the lid in the present invention. It is a bottom view of the lid in the present invention. It is a left view of the lid | cover in this invention. It is a right view of the lid | cover in this invention. It is the perspective view seen from the upper direction of the lid in the present invention. It is the perspective view seen from the downward direction of the lid | cover in this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cover 2 Center part 3 Outer peripheral part 4 Transition area 5 Outer surface 6 Inner surface 7 Protruding surface 8 Stitching part 9 Convex ear 10 Strength bone 11 Stiffener 12 Reinforcement rib

Claims (15)

  A container lid (1) having an outer surface (5) and an inner surface (6) in contact with the container to be sealed; the lid (1) is made of silicon material; the lid (1) is central Part (2) and the outer peripheral part (3) surrounding the central part (2), and the thickness range of the outer peripheral part (3) is 2.0 mm to 4.0 mm. The container lid (1), wherein the thickness exceeds the thickness of the outer peripheral part (3).   The lid (1) has a circular sheet shape, the central portion (2) has a circular shape, and the outer surface (5) side protrudes from the outer peripheral portion (3), and The lid (1) for containers according to claim 1, wherein a stagnation part (8) is formed on the projecting surface (7) of the central part (2).   A convex ear (9) is formed on a local portion of the outer peripheral portion (3), and the convex ear (9) extends from a peripheral edge of the outer peripheral portion (3). The container lid (1) according to 2.   An annular transition region (4) is provided between the central portion (2) and the outer peripheral portion (3), and the outer surface (5) is provided on the outer peripheral portion (3). On the other hand, the inner surface (6) side of the transition region (4) is recessed to the extent that it projects with respect to the outer periphery (3), and the thickness of the transition region (4) is the outer periphery (3). A plurality of strength bones (10) are formed on the outer surface (5) side on the connection portion between the transition region (4) and the central portion (2). The container lid (1) according to claim 2, wherein the container lid (1) is provided.   The container lid (1) according to claim 4, characterized in that the number of the strength bones (10) is 8 to 18 and is uniformly distributed in the circumferential direction of the central portion (2). ).   The container lid (1) according to claim 2, wherein a plurality of stiffeners (11) are provided on the outer peripheral part (3) of the outer surface (5).   The container lid (1) according to claim 4, wherein a plurality of stiffeners (11) are provided on the outer peripheral portion of the outer surface (5).   The quantity of the stiffeners (11) is equal to the quantity of the strength bones (10), and the stiffeners (11) are aligned with the strength bones (10) on the radial direction of the lid (1), respectively. A container lid (1) according to claim 7, characterized in that   The said transition area (4) of the said inner surface (6) is equipped with several reinforcement ribs (12) on the site | part which mutually contacts the said outer peripheral part (3), Container lid (1).   A plurality of reinforcing ribs (12) are provided on a portion of the inner surface (5) where the transition region (4) is in contact with the outer peripheral portion (3). The number of the reinforcing ribs (12) is as follows. The number of the strength bones (10) is equal, and the reinforcing ribs (12) are respectively aligned with the strength bones (10) on the radial direction of the lid (1). A lid (1) for the container as described.   3. The container according to claim 2, wherein the stagnation part (8) is in the form of a single horizontal character and is integrally projected on the projecting surface (7) of the central part (2). Lid (1).   5. A container lid (1) according to claim 4, characterized in that the inner surface (6) has a consistent surface gloss within its entire range.   The diameter of the transition region (4) allows the bottom of the container to be placed over the transition region (4) and the central portion (2). Container lid (1).   The container lid (1) according to claim 4, characterized in that the dimensions of the lid (1) allow the bottom of the container to be placed on the lid (1).   The outer surface (5) and the inner surface (6) at the outer peripheral portion (3) are not parallel to the outer surface (5) and the inner surface (6) at the central portion (2), respectively. The container lid (1) according to claim 4, wherein the container lid (1) is provided.

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