JPH057633U - Lid for food storage container - Google Patents

Abstract

(57) [Abstract] [Purpose] The opening operation of the lid can be performed easily, smoothly and with a good feeling by averaging the force required for opening the lid after breaking the aluminum laminated sheet. To be able to achieve in. [Constitution] A container is provided with a plurality of easily breakable connection pieces 10 on a ring plate 3 having a claw piece 6 provided with a grip piece 9 formed at its tip.
The lid main body 2 in which the assembling cylinder pieces 11 which are the assembling parts to the 13 are continuously provided, and the aluminum laminated sheet which is densely welded to cover the entire lower surface of the lid main body 2, and the upper surface of the ring plate main body. By arranging a number of bending grooves in a posture perpendicular to the front-back direction in parallel, the tilting upward displacement of the ring plate at the time of opening operation can be performed separately and sequentially for each ring plate portion partitioned by the bending groove. , The breaking and opening force is concentrated locally in order,
Therefore, the opening operation force is small.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  The present invention is a food product for hermetically storing food to be heat-treated after hermetically storing such as retort food. The present invention relates to a lid attached to a product storage container.

[0002]

[Prior art]

  For containers that store food that is heat-treated after hermetically storing such as retort food, First of all, while ensuring the sealing performance until opening, the operation at the time of opening is simple and reliable. It is desirable to be able to achieve it.

[0003]   In addition, this type of container is easy to mold and handle and is inexpensive. It is often molded from synthetic resin because it can be obtained In this case, the aluminum seal sheet is welded to the bottom surface of the lid body when opening the lid. In addition, a structure is considered in which this aluminum laminated sheet is broken and removed together with a part of the lid body. It

[0004]   For example, the food storage container disclosed in Japanese Unexamined Patent Publication No. 2-111623 is of this type. A typical container, a lid that is fitted into the opening of the container is made of synthetic resin. The lid member is welded to the lower surface of the lid member, and the peripheral edge portion is used as the opening edge of the container. It is composed of an aluminum laminated sheet that is welded.

[0005]   The lid member of this lid body has a tip-shaped lancet, and the handle piece is placed rearward. Attach the claw piece that extends to the body to the edge of the ring plate integrally formed at the tip and to the rim of the container. It has a structure in which the assembled tubular pieces are connected in series through a plurality of easily breakable connecting pieces. ing.

[0006]   This opening of the lid is performed by the first step of pulling up the handle piece of the lid member, and the tip of the claw piece is opened. The puncture formed on the edge is displaced downward to break the aluminum laminated sheet part directly below and pull it. By the second step, which is the pulling up of the handle piece that continued, the connection piece is broken and the ring plate is While separating from the assembled cylinder piece, break the aluminum laminated sheet at the ring plate This is achieved by expanding along the outer peripheral edge of.

[0007]

[Problems to be solved by the device]

  However, in the above-mentioned conventional technique, the connecting piece for the lid opening operation is broken. While breaking the laminated aluminum sheet, it is expected that multiple pieces will break. If more force is required, especially if a large operating force is required at the beginning of the second stage There was a problem to say.

[0008]   That is, the breakage of the aluminum laminated sheet in the first stage makes use of the lever action by the piercing. Since it is the operation used, it is possible to easily break the aluminum laminated sheet with a weak force. However, the rupture of the aluminum laminated sheet in the second stage is due to the ring flat plate-shaped phosphorus. Displace the claw plate upward with a tilted posture with respect to the assembled cylinder piece. Since this achieves the breaking of the aluminum laminated sheet and the breaking of the connecting piece, this phosphorus The breaking force against the aluminum laminated sheet caused by the upward displacement of the A ring plate, though it works more strongly due to the tip part where the handle pieces with a large amount are connected in series. Since the other parts of the ring plate are also displaced upward against the tension of the aluminum laminated sheet, Disperses along the outer rim, which requires a great amount of operating force in the beginning of the second stage. Will be done.

[0009]   Further, in the above-mentioned conventional technology, the connecting pieces are symmetrically arranged and are separated by six equal center angles. Two of them are located at the upper end of the ring plate body near the side of the claw. However, the two connecting pieces are broken from that position at the beginning of the second stage. It is necessary, and this is also the cause of requiring a large operating force at the beginning of the second stage Has become one of.

[0010]   For example, in the conventional example in which six connecting pieces are provided symmetrically and for each equal central angle, As shown in the characteristic curve a indicating the lid opening characteristic of FIG. 6, the first stage of the lid opening operation is performed. It requires an operating force of 2.47 Kgf, and in the second stage, the first was 7.12 Kgf at the beginning. It requires an opening operation force that is nearly three times that of the first step, and Compared with the operating force of 1.78 Kgf required to break the last part of the laminated sheet Is extremely large and the operation status and feel of the actual opening operation are poor. There was a problem.

[0011]   Therefore, the present invention has been devised to solve the above-mentioned problems in the prior art. However, it is necessary to use a large opening operation force at the beginning of the second stage of the opening operation. The force for breaking the laminated sheet is to be distributed to the outer peripheral edge of the ring plate. The pulling operation force that acts on the ring plate on the side where the aluminum laminated sheet breaks. The technical challenge is to work in close proximity, so opening the lid with a small amount of force In addition, the purpose is to be able to achieve with a good feel.

[0012]

[Means for Solving the Problems]

  Means of the present invention for solving the above technical problems are A claw piece that has a handle piece that extends rearward while making the tip edge a pointed protrusion, On the peripheral edge of the ring plate integrally formed at the tip part, a cylinder piece with an assembly fitted to the rim of the container, Having a lid body made of synthetic resin that is continuously provided through a plurality of easily breakable connection pieces, It is located so as to cover the entire lower surface of the lid main body, the lower surface of the ring plate and the lower surface of the assembled tubular piece, and And an aluminum laminated sheet that is tightly welded to the entire circumference of the rim of the container, On the top surface of the ring plate of the lid body, provide a number of bent grooves that are at right angles to the front-back direction. thing, It is in.

[0013]   Three connecting pieces are provided, and the first connecting piece is slightly behind the front edge line on one side of the claw piece. The second connecting piece on the other left and right sides with a central angle of 90 ° or more with respect to the front-back direction. Position the third connecting piece near the rear end of the left and right sides of the first connecting piece. It's good to put it.

[0014]   In addition, the claw piece and the ring plate body are bent at a right angle to the front-back direction. It is better to connect them through the groove.

[0015]

[Action]

  Containers containing food should be completely melted at their entire peripheries on the entire perimeter of the mouth of the container. The aluminum that is sealed and held by the laminated aluminum sheet that seals this container. Laminated sheets can be placed directly on the rim of the opening of the container through this aluminum laminated sheet. It is mechanically protected by the welded lid body.

[0016]   To open the container, hook the handle piece on your fingertip and pull it up to remove the nail piece. Inclining and displacing the claw piece with the connection with the plate main body as the fulcrum. As a result, the aluminum laminated sheet portion immediately below is broken by the puncture which is the tip edge of the claw piece. This The fracture of the aluminum laminated sheet at the first stage is due to the connection part of the claw piece with the ring plate body. Since it is achieved by tilting using the lever action, The aluminum laminated sheet can be broken with a comparatively weak operating force despite the breaking action of You can

[0017]   If a bent groove is formed in the connecting part between the claw piece and the ring plate body, this bending Since the groove portion is easily bent and deformed, it is easy to tilt and displace the claw piece with respect to the ring plate body. The two bending grooves provide a pivot axis for tilting displacement of the claw piece with respect to the ring plate body, so that the claw piece The tilting displacement of is accurate.

[0018]   Following the first step of breaking the aluminum laminated sheet with these claw pieces, If you continue to pull up the piece and reach the second stage of breaking the aluminum laminated sheet, this ring plate The pulling force that acts on the aluminum laminated sheet located between the ring plate and the assembled cylinder piece. The aluminum laminated sheet portion is broken by acting concentratedly on the sheet portion.

[0019]   Aluminum laminated sheet achieved by tilting this ring plate up and down with respect to the assembled cylinder piece At the beginning of the second stage of rupture, the pulling acting on the ring plate via the handle piece Since the force acts on the tip of the ring plate body, the ring plate body is made of aluminum laminated sheet. Bending upward against the assembling cylinder piece against the tension of the Therefore, due to the bending deformation of the most distal bending groove, Also, the pulling force is not transmitted to the ring plate on the rear side, and it tilts upward with respect to the assembled cylinder piece. Only the ring plate portion on the front side of the bent groove on the most tip side is formed.

[0020]   Therefore, the pulling force that acts on the ring plate is greater than that of the bent groove on the most tip side. It will be concentrated on the front ring plate part, and this concentrated pull will The lifting force is the aluminum facing the ring plate part on the front side of the bent groove on the most tip side. Concentrated acting as a breaking force on the laminated sheet part, breaking this aluminum laminated sheet part To do.

[0021]   Concentration of pulling force due to the bending deformation of this bent groove to a specified location on the ring plate The action is performed sequentially from the front side to the rear side.

[0022]   Also, the breaking action of the aluminum laminated sheet is different for each ring plate section divided by the bending groove. This is achieved by ascending tilting with respect to the assembled cylinder piece. The length of the front and rear width of the assembled ring plate is sufficiently small. The tilt angle is large and the breaking force is large. It concentrates more on the spots, so it is possible to break the opposing aluminum laminated sheets with a weaker force. It can be achieved.

[0023]

【Example】

  Embodiments of the present invention will be described below with reference to the drawings.   The container 13 has a bottom made of a synthetic resin in which a bottom wall 15 is connected to the lower end of a cylindrical wall 14 having a cylindrical shape. It has a cylindrical shape, and the lid 1 of the present invention is tightly fitted and assembled to the opening edge of the container 13. Be injured.

[0024]   The lid body 2 of the lid body 1 connects the ring plate 3 having the claw piece 6 and the assembled tubular piece 11 with each other. Are made of synthetic resin and are connected to the outer peripheral edge of the ring plate 3 via the connecting piece 10. The assembled cylinder piece 11 is the upper part of the inner cylinder part in which a narrow inner flange piece is attached to the lower end of the inner peripheral surface. At the end, hang the outer cylinder part through the narrow outer flange piece located at the highest position of the lid body 2. It has a continuous double cylinder structure, and the opening of the container 13 is opened between the inner cylinder part and the outer cylinder part. By tightly fitting the edges, the lid 1 is fitted to the container 13.

[0025]   The claw piece 6 formed at the tip of the ring plate 3 is a second grade with a pointed lance 7 at the tip. Left and right amount of the rear edge, which is a side triangular plate shape and is a continuous part with the ring plate 3 main body At the side part, it is easy to perform tilting downward displacement of the claw side 6 with respect to the ring plate 3 main body. In order to ensure that the tilting and descending displacement is performed stably and uniformly, the tilting of the claw piece 6 is performed. The bending groove 5 that provides the axis of the dynamic operation is formed at a right angle with respect to the front-back direction. The upper surface of the ring plate 3 with the flat ring plate shape is at a right angle to the front-back direction. A large number of bent grooves 4 (see FIG. 3) are arranged in parallel.

[0026]   In addition, at the central portion of the rear end edge of the claw piece 6, the fingertip extends to the center of the tip end portion through the step portion 8. In the form in which the handle piece 9 having the through hole for hooking is placed in the ring plate 3. It is extended to the rear.

[0027]   A slight gap is formed between the outer peripheral edge of the ring plate 3 and the inner peripheral edge of the assembled cylinder piece 11. A plurality of connecting pieces 10 for connecting the ring plate 3 and the assembled tubular piece 11 in this gap. Is located. In the case of the embodiment shown in FIG. 2, this connecting piece 10 is on the left and right respectively. Symmetrically, three are provided at the front end, the center, and the rear, and a total of six are provided. In the case of the embodiment shown in FIG. 3, three pieces are provided, and the first connection piece 10 is in the vicinity of the claw piece 6. The left and right sides of the second connection piece 10 (right side in FIG. 5), In the center of the left side), and the third connecting piece 10 is on the left or right side (right side in FIG. 5). It is provided at the rear end of each side).

[0028]   The aluminum laminated sheet 12 has a peripheral edge portion on the lower surface of the ring plate 3 including the claw pieces 6. It is densely welded to the entire area and the entire lower surface and the entire inner peripheral surface of the inner cylindrical portion of the assembled tubular piece 11. With respect to the container 13, the assembling cylinder piece 11 is fitted over the entire inner peripheral surface of the opening rim. The outer peripheral surface of the portion welded to the inner peripheral surface of the inner tube portion of the piece 11 is tightly welded, thereby sealing the container 13. Has been achieved.

[0029]   It should be noted that the dense welding of the aluminum laminated sheet 12 to the lid body 2 and the container 13 does not cause ultrasonic noise. Advantageously, this is achieved using wave welding means.

[0030]   To open the handle piece 9 by pulling it up, pull up the handle piece 9 and move the claw piece 6 By the first stage of tilting and descending displacement with 5 as a pivot, After piercing and breaking the 12 part of the laminated sheet, the claw piece 6 is linearly inclined to the left and right. Cut the aluminum laminated sheet 12 directly underneath along the tip edge, then slant the handle piece 9. By the second step of pulling up rearward and upward, the gap between the main body of the ring plate 3 and the assembled tubular piece 11 is increased. It is achieved by sequentially breaking the Lumi laminated sheet 12 portion from the front side to the rear side.

[0031]   In the second stage of this opening operation, it acts on the ring plate 3 main body via the handle piece 9. The pulling force that acts on the tip of the ring plate 3 main body Although it tries to tilt and raise it with respect to the cylindrical piece 11, it depends on the tension of the aluminum laminated sheet 12. Due to the resistance and the bending deformation of the bending groove 4, the entire body of the ring plate 3 is tilted and displaced at the same time. The ring plate 3 is divided by the bent groove 4, and the ring plate 3 is divided from the front end side to the rear end side. It tilts and rises in order toward.

[0032]   Therefore, the tilting displacement of the ring plate 3 portion divided by the bent groove 4 is shown in FIG. As it becomes extremely local and its inclination angle becomes steep, this bending For the aluminum laminated sheet 12 portion facing the ring plate 3 portion divided by the groove 4 The concentration of the breaking force becomes extremely high.

[0033]   Further, the breaking of the aluminum laminated sheet 12 is achieved symmetrically with respect to the front-rear direction. Therefore, as in the embodiment shown in FIG. 2, the connecting pieces 10 are arranged symmetrically. In this case, it is necessary to break the pair of left and right connecting pieces 10 facing each other at the same point. Therefore, the rupture of the aluminum laminated sheet 12 part and the rupture of the two connecting pieces 10 at the same time In comparison with the embodiment shown in FIG. If the connecting pieces 10 are arranged asymmetrically, as shown in, Individually, and therefore an increasing number of opening operations to break the connecting piece 10. The increase in force can be suppressed to a small level.

[0034]   A characteristic curve b of FIG. 6 shows the lid opening characteristic of the embodiment shown in FIG. The characteristic curve c of FIG. 6 shows the lid opening characteristic of the embodiment shown in FIG. Fruit According to the measurement, the pulling force in the first stage of the opening operation is shown by the characteristic curve a. Whereas the conventional example is 2.47 Kgf, in the embodiment shown in FIGS. 2 and 5 of the present invention, In the case of 2.47 Kgf, the pulling force at the beginning of the second stage is The conventional example is 7.12 Kgf, whereas the example shown in FIG. 2 is 5.7 Kgf. 5 is smaller than that of the embodiment shown in FIG. The pulling force required to break the residual aluminum laminated sheet 12 part at the final stage of In the case of the embodiment shown in FIGS. 2 and 5, the conventional example is 1.78 Kgf Became a little larger at 2.45Kgf.

[0035]   As is apparent from the measurement results shown in FIG. 6, the present invention is The maximum opening force can be made sufficiently small, and the opening force is accordingly small Since the fluctuation of the opening operation force during opening operation is small, The degree of catching during work is light, and the opening operation is achieved smoothly and comfortably by that much. can do.

[0036]

[Effect of device]

  Since the present invention has the above-mentioned configuration, it has the following effects.   By providing multiple bending grooves in the ring plate body, the The second stage of breaking of the aluminum laminated sheet part by tilting and displacing separately and in sequence Since it achieves a floor, the pulling force acting on the lid body is extremely effectively made of aluminum laminated sheet. It can act as a breaking force for the tongue, and this breaking force can be divided by the bending groove. Since it can be concentrated on the marked ring plate part, the operating force required for opening Is small, and thus opening of the sealed container can be easily achieved.

[0037]   The total operating force required to open the package can be reduced, and the operation to complete the package opening is completed. Since the fluctuation of the working force is small, the degree of catching during the opening operation is light and It is possible to obtain a smooth and stable opening operation and to obtain a good opening feeling. be able to.

[0038]   If the connecting pieces are placed asymmetrically and the number of connecting pieces is reduced, open them. The maximum operating force required for can be sufficiently reduced, so opening operation is easier It can be smooth.

[Brief description of drawings]

FIG. 1 is an overall vertical sectional view of a food container in which an embodiment of a lid according to the present invention is assembled.

FIG. 2 is an overall plan view showing an embodiment of a lid according to the present invention.

FIG. 3 is an enlarged sectional view of a main part taken along the line AA in FIG.

FIG. 4 is a partial cross-sectional view showing a breaking operation state of the aluminum laminated sheet in the ring plate body.

FIG. 5 is an overall plan view showing another embodiment of the lid according to the present invention.

FIG. 6 is a characteristic diagram showing an actual measurement example of opening operation force characteristics of a conventional example and an embodiment of the present invention.

[Explanation of symbols]

1; Lid body 2; Lid body 3; Ring plate 4; Bending groove 5; Bending groove 6; Claw piece 7; Piercing 8; Step portion 9; Handle piece 10; Connecting piece 11; Assembly tube piece 12; Aluminum lamination Seat 13; container 14; cylinder wall 15; bottom wall

Claims (3)

[Scope of utility model registration request] 1. A ring plate (3) integrally formed at the tip end with a claw piece (6) integrally formed with a handle piece (9) extending rearward and having a tip-shaped lancet (7). ), A synthetic resin lid main body (2) in which an assembled cylinder piece (11) fitted to the rim of the container (13) is connected through a plurality of easily breakable connection pieces (10). When,
The ring plate is positioned so as to cover the entire lower surface of the lid body (2).
(3) Lower surface and lower surface of assembled cylinder piece (11), and the container (13)
It has an aluminum laminated sheet (12) that is tightly welded to the entire circumference of the rim of the rim, and a large number of bent grooves (4) arranged at right angles to the front-rear direction are arranged on the upper surface of the ring plate (3). A lid for a food storage container that is constructed. 2. A first connecting piece (1) provided with three connecting pieces (10).
(0) is located slightly rearward of the front edge line on one of the left and right sides of the claw piece (6), and the second connection piece (10) has a center angle of 9 with respect to the front-back direction.
2. The method according to claim 1, wherein the third connecting piece (10) is located near the rear end portion on the left or right side of the first connecting piece (10), and the third connecting piece (10) is located on the other side of the right and left sides which is a little over 0 °. Lid for food storage container. 3. The claw piece (6) and the ring plate (3) body are connected in series through a bending groove (5) formed in a posture perpendicular to the front-rear direction. Lid for food storage container.