Lid device

Abstract

To provide a lid device including a locking portion having a plurality of operating portions.SOLUTION: A lid device 10 according to the present invention comprises a lid frame 11 and a lid body 20 that is provided on the lid frame 11 so as to be freely opened and closed. The lid body 20 is locked to the lid frame 11 by a locking portion 30. The locking portion 30 has a lower claw 34 that rotates the locking portion main body in the lock release direction, and an upper claw 33.SELECTED DRAWING: Figure 7A

Description

Technical Field

[0001] The present disclosure relates to a lid device attached to a container body for storing food, and more particularly to a lid device that automatically opens the lid with one touch.

Background Art

[0002] Conventionally, a sealed container (canister) having a container body for storing food and a lid for sealing the container body is known. This sealed container includes a container body, a lid frame attached to the container body, and a lid attached to the lid frame so as to be openable and closable.

[0003] The lid is biased in the opening direction by a lid elastic body, and the lid is locked in the closed position by a locking portion when not in use. Then, when in use, the locking portion is actuated to open the lid from the lid frame.

[0004] However, conventionally, when actuating the locking portion, a predetermined operating point is actuated, but a locking portion structure having the convenience of being able to easily actuate the locking portion by providing a plurality of operating portions has not yet been developed.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] The present disclosure has been made in consideration of such points, and an object thereof is to provide a lid device including a locking portion having convenience.

Means for Solving the Problems

[0007] The present disclosure relates to a lid device attached to a container body, comprising a ring-shaped lid frame attached to the container body, a circular lid body provided via a hinge portion including a rotation axis on the lid frame, a lid body elastic body that biases the lid body in the opening direction, and a locking portion that locks the lid body in the closed position. The locking portion includes a locking portion main body swingably attached to the lid frame via a rotation pin, a locking portion elastic body that biases the locking portion main body in the locking direction, a locking portion provided on the locking portion main body for locking to the lid body, a lower claw provided at the lower portion of the locking portion main body for rotating the locking portion main body in the unlocking direction, and an upper claw provided at the upper portion of the locking portion main body for rotating the locking portion main body in the unlocking direction.

[0008] In the present disclosure, when the distance from the upper end of the upper claw to the lower end of the lower claw is L and the distance from the upper end of the upper claw to the rotation pin is L1, L1 = L×(0.6 - 0.7).

[0009] In the present disclosure, the upper claw of the locking portion main body has a flat surface and an upper claw protrusion provided to protrude upward at the outer edge of the flat surface in the radial direction and curved in plan view.

[0010] In the present disclosure, a groove descending from the flat surface is provided at the base of the upper claw protrusion on the flat surface, and the protrusion has an inclined surface extending upward from the groove.

[0011] In the present disclosure, the locking portion elastic body has a locking portion elastic body main body provided on the outer periphery of the lid frame and a plurality of leg portions extending from the locking portion elastic body main body toward the locking portion main body side.

[0012] In the present disclosure, the lid body elastic body has a solid lid body elastic body main body provided on the lid frame, and a guide plate for restricting the movement of the lid body elastic body main body is provided in the vicinity of the inner side in the radial direction of the lid body elastic body main body of the lid frame.

[0013] The present disclosure relates to a lid device in which a ring-shaped seal for sealing with the lid body is provided on the lid frame.

[0014] The present disclosure relates to a lid device in which the upper end of the upper claw protrudes upward from the upper surface of the lid body by L2 = 0.2 mm to 0.8 mm.

Brief Description of the Drawings

[0015]

Figure 1

Figure 2

Figure 3

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Figure 7A

Figure 7B

Figure 8

Figure 9

Figure 10

Figure 11

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Figure 13

Figure 14

Figure 15A

Figure 15B

Figure 16

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Figure 18

Figure 19

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Figure 21

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Figure 25

Mode for Carrying Out the Invention

[0016] Hereinafter, embodiments of the present disclosure will be described. FIGS. 1 to 22 are diagrams showing embodiments according to the present disclosure.

[0017] As shown in FIGS. 1 to 22, the lid device 10 according to the present disclosure is attached to the container body 1, and a sealed container 10A is obtained by the container body 1 made of a transparent body that stores the contents and the lid device 10 attached to the container body 1.

[0018] The lid device 10 according to the present disclosure includes an annular lid frame 11 attached to the container body 1, a circular lid body 20 made of a transparent body provided via a hinge portion 25A including a rotation shaft 25 on the lid frame 11, a lid body elastic body 16 that biases the lid body 20 in the opening direction with respect to the lid frame 11, and a locking portion 30 that locks the lid body 20 to the lid frame 11.

[0019] Among these, the container body 1 is a bottle-shaped container body 1 having an opening 1a at the upper part, and a male screw 1c is formed on its neck portion 1b. Note that the shape of the container body 1 is not limited to a bottle shape, and it may be other shapes such as a shallow-bottomed case or a dish shape. Also, the inside can be in a form corresponding to the contents, such as being partitioned into a plurality of rooms.

[0020] The lid frame 11 constituting the lid device 10 has an annular body portion 11a, and a female screw 11b corresponding to the male screw 1c of the container body 1 is formed on the inner peripheral surface of the body portion 11a, and is screwed onto the opening 1a of the container body 1.

[0021] Among these, the lid frame 11 and the lid body 20 of the lid device 10 will be described below.

[0022] As described above, the lid frame 11 has an annular body portion 11a, a female screw 11b is formed on this body portion 11a, and the female screw 11b of this body portion 11a is engaged with the male screw 1c provided on the neck portion 1b of the container body 1, and the lid frame 11 is attached to the container body 1.

[0023] The body portion 11a of the lid frame 11 is ring-shaped, a pair of projecting pieces 12, 12 are provided on one side of the body portion 11a of the lid frame 11, and a pair of projecting pieces 17, 17 are provided on the other side of the body portion 11a of the lid frame 11 (see FIG. 8).

[0024] Also, as shown in FIGS. 8 and 9, an extension portion 14 extending from the body portion 11a is provided between a pair of projecting pieces 12, 12 provided on one side of the body portion 11a of the lid frame 11. Also, the pair of projecting pieces 12, 12 are connected by a connecting piece 13 at their radially outer ends.

[0025] In addition, the pair of projecting pieces 12, 12 of the lid frame 11 are provided with apertures 12a into which a rotation shaft 25 of the lid body 20 described later is inserted. By inserting the rotation shaft 25 of the lid body 20 into the apertures 12a of the pair of projecting pieces 12, 12, the lid body 20 is swingably attached to the lid frame 11. And this rotation shaft 25 constitutes a hinge portion 25A that swings the lid body 20 with respect to the lid frame 11.

[0026] In addition, an elastic body 16 for the lid body is provided on the extension portion 14 to bias the lid body 20 in the opening direction.

[0027] That is, as shown in FIGS. 8 to 11 and FIG. 21, an elastic body 16 for the lid body made of an elastic material such as silicone resin that biases the lid body 20 in the opening direction is embedded in the upper surface of the extension portion 14 of the lid frame 11.

[0028] A pressing projection 27 provided on the lid body 20 described later abuts against the elastic body 16 for the lid body. The elastic body 16 for the lid body is pressed by the pressing projection 27 and compressed, thereby biasing the lid body 20 in the opening direction (R1 (see FIG. 7A)).

[0029] Next, the lid body 20 will be described. As shown in FIGS. 2 and 22, a pair of projecting pieces 21, 21 are provided on one side of the lid body 20, and an engaging piece 22 that engages with a locking piece 32 of a locking portion 30 described later is provided between the pair of projecting pieces 21, 21 (see FIG. 22).

[0030] In the present embodiment, “upper part”, “above”, “lower part”, and “below” refer to the “upper part”, “above”, “lower part”, and “below” when the sealed container 10A is arranged in the state of FIG. 1.

[0031] On the other side of the lid body 20, as shown in FIGS. 2, 21, and 22, an extension portion 24 is provided at a position facing a pair of protruding pieces 21, 21, and protruding pieces 26, 26 are provided on both sides of this extension portion 24. And on the outer surfaces of the respective protruding pieces 26, 26, a rotating shaft 25 that is inserted into the openings 12a formed in the pair of protruding pieces 12, 12 of the lid frame 11 protrudes outward. As described above, this rotating shaft 25 constitutes a hinge portion 25A that swings the lid body 20 with respect to the lid frame 11 (see FIG. 21).

[0032] Also, on the extension portion 24 of the lid body 20, a pressing protrusion 27 is provided that presses and compresses the lid body elastic body 16 provided on the extension portion 14 of the lid frame 11.

[0033] Next, the lid body elastic body 16 provided on the extension portion 14 of the lid frame 11 will be further described. The lid body elastic body 16 provided on the extension portion 14 is made of an elastic material such as silicone resin and is embedded in the extension portion 14. The lid body elastic body 16 mainly includes a base portion 16b embedded in the extension portion 14 and a lid body elastic body main body 16c provided on the base portion 16b and having an inclined surface 16a (see FIGS. 8 to 11 and FIG. 21).

[0034] In the present embodiment, the inclined surface 16a of the lid body elastic body 16 is inclined so as to descend toward the outer side in the radial direction.

[0035] When the lid body 20 comes to the closed position, the pressing protrusion 27 provided on the extension portion 24 of the lid body 20 presses the inclined surface 16a of the lid body elastic body 16 downward to pressurize and compress the lid body elastic body 16 (see FIG. 21).

[0036] When the lid body 20 comes to the open position, the pressing protrusion 27 provided on the extension portion 24 of the lid body 20 disengages from the lid body elastic body 16 and escapes radially outward.

[0037] Also, in the present embodiment, a regulating plate 15 is attached radially inward of the lid elastic body main body 16c having the inclined surface 16a to regulate the movement of the lid elastic body main body 16c so that the lid elastic body main body 16c is not greatly deformed when the lid 20 reaches the closed position by the pressing projection 27 (see FIG. 21).

[0038] As described above, when the lid 20 reaches the open position, the lid 20 extends in the vertical direction in FIG. 10, and the pressing projection 27 of the lid 20 disengages from the lid elastic body 16. However, as the lid 20 approaches the closed position, the lid 20 moves in the horizontal direction (see FIG. 10). At this time, the pressing projection 27 of the lid 20 moves from the radially outer side to the radially inner side and simultaneously from the lower side to the upper side with respect to the inclined surface 16a of the lid elastic body 16. At this time, the pressing projection 27 of the lid 20 gradually presses the inclined surface 16a of the lid elastic body 16 downward and compresses the lid elastic body 16.

[0039] In this way, in the closed position of the lid 20, the lid elastic body 16 provided on the lid frame 11 can be reliably compressed by the pressing projection 27, and the lid 20 can be biased in the opening direction R1 by this lid elastic body 16 (see FIG. 7A).

[0040] Then, by releasing the locking action of the locking portion 30 that locks the lid 20 to the lid frame 11 as described later, the lid 20 rotates in the opening direction R1 with respect to the lid frame 11 by the biasing force of the lid elastic body 16. Thereafter, when the user further lifts the lid 20 in the opening direction, the lid 20 reaches the open position extending in the vertical direction.

[0041] Incidentally, the lid body 20 is rotatably attached to the body portion 11a of the lid frame 11 about the rotation axis 25, and the upper end opening 11A of the body portion 11a of the lid frame 11 is sealed by the lid body 20. A ring-shaped seal 18 is attached to the periphery of the upper end opening 11A of the lid frame 11 (see FIGS. 7A, 7B, and 8). This ring-shaped seal 18 is made of an elastic material such as silicone resin, and a ring-shaped groove 18a is formed on the upper surface thereof. When the lid body 20 comes to the closed position with respect to the lid frame 11, a ring-shaped protrusion 28 formed on the inner surface of the lid body 20 enters into the ring-shaped groove 18a of the ring-shaped seal 18. In this way, the ring-shaped protrusion 28 enters into the ring-shaped groove 18a of the ring-shaped seal 18, and the sealing performance between the lid frame 11 and the lid body 20 can be improved (see FIGS. 7B and 22).

[0042] Next, the locking portion 30 for locking the lid body 20 to the lid frame 11 will be described in detail.

[0043] The locking portion 30 for locking the lid body 20 to the lid frame 11 is fitted between a pair of projecting pieces 17, 17 on the outer peripheral surface of the lid frame 11. When viewed in a vertical cross section perpendicular to the horizontal direction, this locking portion 30 has a locking portion main body 31 that curves concave outward (see FIG. 7A).

[0044] The locking portion main body 31 of this locking portion 30 has an opening 37 on its side surface, and a rotation pin 19 provided on a pair of projecting pieces 17, 17 of the lid frame 11 is inserted into this opening 37. As a result, the locking portion main body 31 of the locking portion 30 can swing about the rotation pin 19 with respect to a pair of projecting pieces 17, 17 of the lid frame 11 (see FIGS. 7A, 15A to 16, and 17 to 19).

[0045] In this way, the locking portion main body 31 is provided on a pair of projecting pieces 17, 17 and can swing about a rotation pin 19 extending in the horizontal direction.

[0046] In addition, a locking piece 32 that engages with the engaging piece 22 of the lid body 20 is provided on the upper part of the locking part main body 31. The locking piece 32 of the locking part 30 is provided radially inward in the upper part of the locking part main body 31, engages with the engaging piece 22 of the lid body 20, and locks the lid body 20 to the lid frame 11.

[0047] In addition, the locking part 30 has a locking part elastic body 35 that biases the locking part main body 31 in the locking direction R2 (see Fig. 7A). The locking part elastic body 35 will be described later.

[0048] Furthermore, a lower claw 34 for moving the locking part main body 31 in the unlocking direction opposite to the locking direction R2 is provided at the lower part of the locking part main body 31 of the locking part 30.

[0049] In addition, an upper claw 33 for moving the locking part main body 31 in the unlocking direction opposite to the locking direction R2 is provided radially outward on the opposite side of the locking piece 32 at the upper part of the locking part main body 31 of the locking part 30.

[0050] Among these, the lower claw 34 is pressed horizontally with a finger from the side of the locking part 30 to rotate the locking part main body 31 in the unlocking direction opposite to the locking direction R2 (see Fig. 7A).

[0051] On the other hand, the upper claw 33 is rotated by the user hooking a finger from above the locking part 30 to rotate the locking part main body 31 in the unlocking direction opposite to the locking direction R2.

[0052] As shown in Fig. 7A, Fig. 15A, and Fig. 15B, the upper claw 33 has a flat surface 33a located radially inward and an upper claw protrusion 33d provided to protrude upward at the outer edge radially outward. The user can hook a finger on this upper claw protrusion 33d. The upper claw protrusion 33d is curved in plan view. And a groove 33b that curves in plan view and descends from the flat surface 33a is provided at the base located radially inward of the upper claw protrusion 33d, and an inclined surface 33c extends from the groove 33b to the upper claw protrusion 33d.

[0053] As described above, the user can hook a finger on the upper claw protrusion 33d and a part of the inclined surface 33c and rotate the locking portion main body 31 in the unlocking direction.

[0054] Next, the locking portion elastic body 35 that biases the locking portion main body 31 in the locking direction will be described.

[0055] It is provided on the outer periphery of the body portion 11a of the lid frame 11 from a fixing body 35A that protrudes from the body portion 11a. The locking portion elastic body 35 has a locking portion elastic body main body 35a fitted on the outer periphery of the fixing body 35A, and a plurality of, for example, two leg portions 35b extending from the locking portion elastic body main body 35a toward the locking portion main body 31 side. Then, the locking portion elastic body 35 having the locking portion elastic body main body 35a and the two leg portions 35b presses the locking portion main body 31, and biases the locking portion main body 31 in the locking direction R2 around the rotation pin 19.

[0056] The locking portion elastic body 35 having the solid locking portion elastic body main body 35a and the two leg portions 35b is entirely made of an elastic material such as silicone resin.

[0057] By the way, as shown in FIG. 7A, when the distance from the upper end of the upper claw 33 to the lower end of the lower claw 34 is L, and the distance from the upper end of the upper claw 33 of the locking portion 30 to the rotation pin 19 is L1, L1 = L×(0.6~0.7).

[0058] By determining the distance L1 from the upper end of the upper claw 33 to the rotation pin 19 as described above, when hooking a finger on the upper claw 33 and swinging the locking portion main body 31, the force applied to the upper claw 33 can be made relatively small.

[0059] That is, when the sealed container 10A is placed on a desk or the like, the locking portion 30 can be easily operated by pressing the lower claw 34 horizontally with a finger from the side.

[0060] On the other hand, when the sealed container 10A is pulled out and used in storage, it is also conceivable to press the upper claw 33 with a finger from above.

[0061] According to this embodiment, even if the force applied to the upper claw 33 is small, the locking portion main body 31 can be swung. Therefore, even if a finger is pressed against the upper claw 33 from above, the locking portion main body can be easily swung. The horizontal distance L3 between the upper claw protrusion 33d of the upper claw 33 and the rotation pin 19 is L3 = L×(0.1 to 0.2). For this reason, even if the upper claw protrusion 33d is pressed vertically with a finger from above, the locking portion main body 31 can be surely swung.

[0062] In this embodiment, the upper end of the upper claw 33 (the upper end of the upper claw protrusion 33d) protrudes upward from the upper surface of the lid body 20 by L2 = 0.2 mm to 0.8 mm. By determining the protruding amount of the upper claw 33 from the upper surface of the lid body 20 in this way, even when the sealed container 10A is stored in the drawer or the like, when the sealed container 10A is inserted and removed from the drawer, it will not be caught inside the drawer.

[0063] Next, the materials of each component will be described. The lid frame 11 and the locking portion 30 are configured separately from each other, and both are made of polypropylene resin.

[0064] The lid body elastic body 16, the locking portion elastic body 35, and the ring-shaped seal 18 are all made of an elastic material such as silicone resin.

[0065] Furthermore, both the container body 1 and the lid body 20 are made of heat-resistant (90° heat-resistant) AS resin.

[0066] Next, the operation of this embodiment having such a configuration will be described below.

[0067] First, a sealed container 10A composed of the container body 1 and the lid device 10 according to the present disclosure attached to the container body 1 is prepared (see FIG. 1).

[0068] As described above, the lid device 10 according to the present disclosure includes a ring-shaped lid frame 11 attached to the container body 1, a circular lid body 20 provided via a hinge portion 25A including a rotation shaft 25 on the lid frame 11, a lid body elastic body 16 that biases the lid body 20 in the opening direction with respect to the lid frame 11, and a locking portion 30 that locks the lid body 20 to the lid frame 11.

[0069] In this case, as shown in FIG. 1, the lid body 20 of the sealed container 10A is in the closed position with respect to the lid frame 11.

[0070] When the lid body 20 thus comes to the closed position, a pressing projection 27 provided on the extension portion 24 of the lid body 20 presses the inclined surface 16a of the lid body elastic body 16 downward to pressurize and compress the lid body elastic body 16.

[0071] In this way, the lid body 20 can be biased in the opening direction R1 by the lid body elastic body 16 (see FIG. 7A). Further, the lid body 20 is locked in the closed position with respect to the lid frame 11 by the locking portion 30.

[0072] Next, when the user operates the locking portion 30, the locking of the lid body 20 by the locking portion 30 is released, and the lid body 20 rotates in the opening direction R1 via the hinge portion 25A including the rotation shaft 25 by the elastic force of the lid body elastic body 16 (see FIG. 7A). In this way, the lid body 20 opens with respect to the lid frame 11 (see FIG. 6).

[0073] Next, the operation of the locking portion 30 will be described.

[0074] The user presses the lower claw 34 with a finger from the other side of the locking portion 30 and rotates the locking portion main body 31 in the unlocking direction opposite to the locking direction R2.

[0075] Alternatively, the user can also hook a finger on the upper claw 33 from above the locking portion 30 and rotate the locking portion main body 31 in the unlocking direction opposite to the locking direction R2. In this case, the user may press the upper claw 33 downward with a finger from above and rotate the locking portion main body 31 in the unlocking direction opposite to the locking direction R2.

[0076] In this way, the user can rotate the locking portion main body 31 in the unlocking direction (see FIGS. 7A, 15A, and 15B).

[0077] During this time, the locking portion main body 31 of the locking portion 30 is always biased in the locking direction R2 by the locking portion elastic body 35.

[0078] That is, a fixing body 35A protruding from the body portion 11a is provided on the outer periphery of the body portion 11a of the lid frame 11, and the locking portion elastic body 35 includes a solid locking portion elastic body main body 35a fitted on the outer periphery of the fixing body 35A, and a plurality of, for example, two leg portions 35b extending from the locking portion elastic body main body 35a toward the locking portion main body 31 side. Then, the locking portion elastic body 35 having the solid locking portion elastic body main body 35a and the two leg portions 35b presses the locking portion main body 31 and biases the locking portion main body 31 in the locking direction R2 around the rotation pin 19.

[0079] Therefore, according to the present embodiment, the user releases the locking of the lid body 20 by pressing the lower claw 34 or the upper claw 33 of the locking portion 30 against the biasing force of the locking portion elastic body 35.

[0080] After the lid body 20 is opened with respect to the lid frame 11 in this way (see FIG. 6), the user can lift the lid body 20 further in the opening direction to bring the lid body 20 to an open position extending in the vertical direction.

[0081] After that, after the user takes out the content from the container body 1 of the sealed container 10A, the user closes the lid body 20 again with respect to the lid frame 11.

[0082] The behavior of the lid frame 11 and the lid body 20 during this period will be described below.

[0083] First, when the lid 20 is in the open position, the lid 20 extends in the vertical direction. At this time, the pressing projection 27 of the lid 20 disengages from the lid elastic body 16 (see Fig. 10). Then, as the lid 20 approaches the closed position, the lid 20 moves horizontally. At this time, the pressing projection 27 of the lid 20 moves from the radially outer side to the radially inner side and simultaneously from the lower side to the upper side with respect to the inclined surface 16a of the lid elastic body 16. At this time, the pressing projection 27 of the lid 20 presses the inclined surface 16a of the lid elastic body 16 while gradually rising from the lower side to the upper side, and compresses the lid elastic body 16.

[0084] In this way, at the closed position of the lid 20, the lid elastic body 16 provided on the lid frame 11 can be reliably compressed by the pressing projection 27, and the lid 20 can be urged in the opening direction R1 by this lid elastic body 16 (see Fig. 7A).

[0085] After that, the lid 20 in the closed position is locked to the lid frame 11 by the locking portion 30.

[0086] As described above, according to the present embodiment, the locking portion 30 that locks the lid 20 to the lid frame 11 includes a lower claw 34 that the user presses with a finger from the side of the locking portion 30 to rotate the locking portion main body 31 in the unlocking direction, and an upper claw 33 that the user hooks a finger from above the locking portion 30 to rotate the locking portion main body 31 in the unlocking direction.

[0087] Therefore, depending on the arrangement position of the sealed container 10A, the locking portion 30 can be operated by selectively using the lower claw 34 or the upper claw 33.

[0088] For example, when the sealed container 10A is used after being stored in a drawer or the like, the upper claw 33 is pressed with a finger from above.

[0089] In this case, as shown in FIGS. 7A, 15A, and 15B, the upper claw 33 has a flat surface 33a located radially inward and an upper claw protrusion 33d that is curved in a plane provided to protrude upward at the outer edge radially outward, and the user can hook a finger on this upper claw protrusion 33d. And at the base located radially inward of the upper claw protrusion 33d, a groove 33b that is curved in a plan view descending from the flat surface 33a is provided, and an inclined surface 33c extends from the groove 33b to the upper claw protrusion 33d.

[0090] Therefore, when the user hooks a finger on the upper claw 33, the user can surely hook a finger on the upper claw protrusion 33d that is curved to protrude outward in a plan view, and smoothly and surely rotate the locking portion main body 31 in the unlocking direction.

[0091] Also, since the locking portion main body 31 of the locking portion 30 provided on the lid frame 11 has a cross section that is curved in a concave shape facing outward (see FIG. 7A), when the locking portion main body 31 is rotated by the rotation pin 19, the locking portion main body 31 does not interfere with the lid frame 11.

[0092] Also, as shown in FIG. 7A as described above, when the distance from the upper end of the upper claw 33 to the lower end of the lower claw 34 is L, and the distance from the upper end of the upper claw 33 of the locking portion 30 to the rotation pin 19 is L1, L1 = L×(0.6~0.7).

[0093] By determining the distance L1 from the upper end of the upper claw 33 to the rotation pin 19 as described above, when hooking a finger on the upper claw 33 and swinging the locking portion main body 31, the force applied to the upper claw 33 can be made relatively small.

[0094] Therefore, when the sealed container 10A is stored and used by pulling it out or the like, the upper claw 33 will be pressed with a finger from above.

[0095] According to this embodiment, even if the force applied to the upper claw 33 is small, the locking portion main body 31 can be swung. Therefore, even if a finger is pressed against the upper claw 33 from above, the locking portion main body can be easily swung. The horizontal distance L3 between the upper claw protrusion 33d of the upper claw 33 and the rotation pin 19 is L3 = L×(0.1 to 0.2). For this reason, even if the upper claw protrusion 33d is pressed vertically with a finger from above, the locking portion main body 31 can be surely swung.

[0096] Also, the upper end of the upper claw 33 (the upper end of the upper claw protrusion 33d) protrudes upward from the upper surface of the lid body 20 by L2 = 0.2 mm to 0.8 mm. By determining the protruding amount of the upper claw 33 from the upper surface of the lid body 20 in this way, even when the sealed container 10A is pulled out and stored inside, etc., when the sealed container 10A is inserted and removed from the drawer, it will not be caught inside the drawer.

[0097] The ring-shaped seal 18 attached to the lid frame 11 is made of an elastic material such as silicone resin, and a ring-shaped groove 18a is formed on the upper surface. When the lid body 20 comes to the closed position with respect to the lid frame 11, the ring-shaped protrusion 28 formed on the inner surface of the lid body 20 enters the ring-shaped groove 18a of the ring-shaped seal 18. In this way, the sealing performance between the lid frame 11 and the lid body 20 can be improved by the ring-shaped protrusion 28 entering the ring-shaped groove 18a of the ring-shaped seal 18 (see FIGS. 7B and 22).

[0098] Also, by providing the ring-shaped seal 18 on the lid frame 11 side, compared with the case where the seal is provided on the rotating lid body 20, the position of the ring-shaped seal 18 can be stabilized, and the sealing performance between the lid frame 11 and the lid body 20 can be improved. Also, the ring-shaped seal 18 can be stably attached to the fixed lid frame 11, and further, the weight of the rotating lid body 20 can be reduced, and the rotating action of the lid body 20 can be easily performed. Furthermore, by attaching the ring-shaped seal 18 to the fixed lid frame 11, the secular change of the ring-shaped seal 18 during use can be suppressed.

[0099] Further, as described above, the locking portion elastic body 35 of the locking portion 30 has a locking portion elastic body main body 35a fitted around the outer periphery of the lid frame 11 and two leg portions 35b, and is made of an elastic material such as silicone resin as a whole. Therefore, a large elastic force is exerted by the leg portions 35b, and the locking portion elastic body 35 can be stably fixed to the outer periphery of the lid frame 11 by the locking portion elastic body main body 35a.

[0100] Since the locking portion elastic body 35 is not made of metal but of an elastic material such as silicone resin in this way, metal parts can be eliminated from the overall structure, and the durability of the entire sealed container 10A can be improved.

[0101] Furthermore, the lid body elastic body 16 provided on the lid frame 11 has an inclined surface 16a. When the lid body 20 is rotated to the closed position, the pressing projection 27 of the lid body 20 moves from the radially outer side to the radially inner side with respect to the inclined surface 16a, and from the lower side to the upper side along the outer edge of the inclined surface 16a, while compressing and deforming the locking portion elastic body 35. In this way, since the pressing projection 27 of the lid body 20 gradually compresses the lid body elastic body 16 while moving along the outer edge of the inclined surface 16a, the shape of the lid body elastic body 16 is not greatly deformed. Also, when the lid body elastic body 16 is compressed and deformed by the pressing projection 27, if the shape of the lid body elastic body 16 is deformed, the movement of the lid body elastic body 16 is restricted by the restricting plate 15. For this reason, while the lid body elastic body 16 is being pressed by the pressing projection 27, the lid body elastic body 16 is not greatly deformed, but is compressed and deformed to have a predetermined shape. Therefore, a stable elastic force can be exerted by the lid body elastic body 16.

[0102] Next, a modified example of the locking portion 30 will be described with reference to FIGS. 23 to 25.

[0103] As described above, a pair of projecting pieces 21, 21 are provided on one side of the lid body 20, and the locking portion 30 is provided between the pair of projecting pieces 21, 21. And on the upper part of the locking portion main body 31 of the locking portion 30, an upper claw 33 for moving the locking portion main body 31 in the unlocking direction opposite to the locking direction R2 is provided on the radially outer side opposite to the locking piece 32.

[0104] The upper claw 33 is for the user to hook a finger from above the locking portion 30 and rotate the locking portion main body 31 in the unlocking direction opposite to the locking direction R2.

[0105] As shown in Fig. 23, the upper claw 33 has a flat surface 33a located radially inward and an upper claw protrusion 33d provided so as to protrude upward at the outer edge radially outward. The user can hook a finger on the upper claw protrusion 33d. The upper claw protrusion 33d may extend linearly in plan view. In Fig. 23, on the other side of the lid body 20, an extension portion 24 is provided at a position facing the pair of protruding pieces 21, 21, and protruding pieces 26, 26 are provided on both sides of the extension portion 24. Further, a rotation shaft 25 constituting the hinge portion 25A is provided on the protruding pieces 26, 26.

[0106] The user can hook a finger on the linearly extending upper claw protrusion 33d and rotate the locking portion main body 31 in the unlocking direction.

[0107] Alternatively, as shown in Fig. 24, the upper claw 33 has a flat surface 33a located radially inward and an upper claw protrusion 33d provided so as to protrude upward at the outer edge radially outward. The user can hook a finger on the upper claw protrusion 33d. The upper claw protrusion 33d may have a linearly extending straight portion 33d1 in plan view and a pair of linearly extending corner portions 33d2 formed at both ends of the straight portion 33d1. In Fig. 24, on the other side of the lid body 20, an extension portion 24 is provided at a position facing the pair of protruding pieces 21, 21, and protruding pieces 26, 26 are provided on both sides of the extension portion 24. Further, a rotation shaft 25 constituting the hinge portion 25A is provided on the protruding pieces 26, 26.

[0108] The user can hook a finger on the straight portion 33d1 of the linearly extending upper claw protrusion 33d and rotate the locking portion main body 31 in the unlocking direction.

[0109] Alternatively, as shown in FIG. 25, the upper claw 33 has a flat surface 33a located radially inward and an upper claw protrusion 33d provided so as to protrude upward at the outer edge radially outward, and the user can hook a finger on this upper claw protrusion 33d. The upper claw protrusion 33d may have a straight portion 33d1 extending linearly in plan view and a pair of curved portions 33d2 formed at both ends of the straight portion 33d1. In FIG. 25, on the other side of the lid body 20, an extension portion 24 is provided at a position facing the pair of protruding pieces 21, 21, and protruding pieces 26, 26 are provided on both sides of this extension portion 24. Further, a rotation shaft 25 constituting the hinge portion 25A is provided on the protruding pieces 26, 26.

[0110] The user can hook a finger on the straight portion 33d1 of the upper claw protrusion 33d extending linearly and rotate the locking portion main body 31 in the unlocking direction.

[0111] In FIGS. 23 to 25, when the upper claw protrusion 33d has a linear shape (see FIG. 23), when the upper claw protrusion 33d has a straight portion 33d1 (see FIGS. 24 and 25), in either case, the upper claw 33 can be easily manufactured, and thereby the manufacturing cost can be reduced.

[0112] As described above, as shown in FIGS. 7A, 12, 15A, and 15B, the upper claw 33 has a flat surface 33a located radially inward and an upper claw protrusion 33d provided so as to protrude upward at the outer edge radially outward, and the user can hook a finger on this upper claw protrusion 33d, and the upper claw protrusion 33d is curved in plan view. And a groove 33b that curves in plan view and descends from the flat surface 33a is provided at the base of the upper claw protrusion 33d located radially inward, and an inclined surface 33c extends from the groove 33b to the upper claw protrusion 33d. In this case, in FIGS. 7A, 12, 15A, and 15B, the upper claw protrusion 33d that curves in plan view may have an arc portion consisting of a single radius, or may have a plurality of arcs with different radii locally. Also, the flat surface 33a located radially inward may be an inclined surface that is slightly inclined, and the flat surface 33a may be formed in a tapered shape in plan view.

[0113] Alternatively, the upper claw protrusion 33d that curves in plan view may have a shape such that when a finger is placed on and pulls the upper claw 33, the finger naturally catches on the center of the upper claw protrusion 33d. The upper claw protrusion 33d that curves in plan view may have a shape along the finger so as to be easily caught by the fingertip.

Explanation of Reference Numerals

[0114] 1 Container body 10 Lid device 10A Sealed container 11 Lid frame 11a Body part 12 Projection 12a Opening 13 Connecting piece 14 Extension 16 Lid elastic body 16a Inclined surface 16b Base 16c Lid elastic body main body 17 Projection 18 Ring-shaped seal 18a Ring-shaped groove 19 Rotating pin 20 Lid 21 Projection 22 Engaging piece 24 Extension 25 Rotating shaft 26 Projection 27 Pressing protrusion 28 Ring-shaped protrusion 30 Locking part 31 Locking part main body 33 Upper claw 33a Flat surface 33b Groove 33c Inclined surface 33d Upper claw protrusion 34 Lower claw 35 Locking part elastic body 35a Locking part elastic body main body 35b Leg part

Claims

1. In a lid device attached to a container body, a ring-shaped lid frame attached to the container body, a circular lid body provided via a hinge portion including a rotation axis on the lid frame, a lid body elastic body that biases the lid body in the opening direction, and a locking portion that locks the lid body in the closed position, the locking portion includes a locking portion main body swingably attached to the lid frame via a rotation pin, a locking portion elastic body that biases the locking portion main body in the locking direction, a locking portion provided on the locking portion main body for locking to the lid body, a lower claw provided at the lower part of the locking portion main body for rotating the locking portion main body in the unlocking direction, and an upper claw provided at the upper part of the locking portion main body for rotating the locking portion main body in the unlocking direction. The lid device.

2. When the distance from the upper end of the upper claw to the lower end of the lower claw is L and the distance from the upper end of the upper claw to the rotation pin is L1, L1 = L×(0.6 - 0.7). The lid device according to Claim 1.

3. The upper claw of the locking portion main body has a flat surface and an upper claw protrusion provided to protrude upward at the outer edge radially outward of the flat surface and curved in plan view. The lid device according to Claim 1.

4. In the flat surface, a groove descending from the flat surface is provided at the base of the upper claw protrusion, and the upper claw protrusion has an inclined surface extending upward from the groove. The lid device according to Claim 3.

5. The locking portion elastic body includes a locking portion elastic body main body provided on the outer periphery of the lid frame and a plurality of legs extending from the locking portion elastic body main body toward the locking portion main body side. The lid device according to Claim 1.

6. The lid body elastic body has a solid lid body elastic body main body provided on the lid frame, and a guide plate for restricting the movement of the lid body elastic body main body is provided in the vicinity radially inward of the lid body elastic body main body of the lid frame. The lid device according to Claim 1.

7. A ring-shaped seal for sealing between the lid frame and the lid body is provided on the lid frame. The lid device according to Claim 1.

8. The upper end of the upper claw protrudes upward by L2 = 0.2 mm to 0.8 mm from the upper surface of the lid body. The lid device according to Claim 1.

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