Cooker

The cooking appliance addresses dew condensation issues by using a ribbed inner lid gasket and a dew tray to minimize moisture impact on food and maintain hygiene.

JP2025176495APending Publication Date: 2025-12-04TIGER CORP
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Patent Information

Application Number
JP2024082683
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-05-21
Publication Date
2025-12-04

AI Technical Summary

Technical Problem

Existing cooking appliances, such as pressure rice cookers and electric pressure cookers, suffer from dew condensation on the inner lid that can drip onto food or the shoulder case, affecting texture, taste, and appearance.

Method used

A cooking appliance with an inner lid gasket featuring a groove with obstacles, such as ribs, to slow down and redirect dew flow, and a dew tray to collect excess moisture.

Benefits of technology

Reduces the amount of dew that falls onto food and prevents soiling of the shoulder case by collecting excess moisture in a dedicated tray.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a cooker capable of reducing falling of dew adhering to an inner lid or an inner lid packing onto a food material when a lid body is opened.SOLUTION: A cooker 10 includes a cooker body 20 and a lid body 30. The lid body is detachably provided with an inner lid 40 to airtightly close an inner pot on a lower surface side. The inner lid includes an inner lid plate 41 for covering the inner pot and an inner lid packing 50 disposed on the outer periphery of the inner lid plate. The inner lid packing has a lip part 54 including a base part 52 extending in an outer peripheral direction of the inner lid plate, a peripheral wall part 54a extending from the base part in a direction of entering the inner pot in a state in which the lid body is closed, and a curved part 54b curved inward from the tip of the peripheral wall part. An inner surface of a groove part 55 on an inner surface side of the lip part is provided with an obstacle 56 for interfering with the progress of dew adhering to the inner lid when the lid body is opened at a position lower than the center when the lid body is opened.SELECTED DRAWING: Figure 8
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Description

[Technical Field]

[0001] The present invention relates to a cooking appliance such as a rice cooker, and more particularly to a cooking appliance that can reduce the dripping of dew from moisture adhering to an inner lid. [Background technology]

[0002] In cooking appliances such as pressure rice cookers and electric pressure cookers, the inner pot in which ingredients are placed and cooked or kept warm is covered with a lid. The lid is hinged and can be opened and closed by the user.

[0003] The lid body has a removable inner lid that closes the inner pot on its underside. The inner lid has a disc-shaped inner lid plate and an inner lid gasket that surrounds the outer periphery of the inner lid plate. When the lid body is closed, the inner lid gasket enters the inner side of the inner pot, sealing it airtight.

[0004] The water vapor generated inside the inner pot adheres to the inner lid as condensation. When the lid is opened, this condensation can fall onto the ingredients (such as rice) or onto the shoulder case on the outside of the inner pot. If the condensation falls onto the ingredients, it can cause an excess of moisture in certain areas, which can affect the texture, taste, and appearance. If the condensation falls onto the shoulder case, starch and other solids remain when it dries, which makes the food look unsightly and unhygienic.

[0005] Therefore, in Patent Document 1, a bag-shaped inner lid dew receiver is provided below the inner lid packing. When the lid body is opened, dew adhering to the inner lid packing and inner lid plate is collected in the inner lid dew receiver, preventing the dew from falling. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Patent No. 6387526 Summary of the Invention [Problem to be solved by the invention]

[0007] In Patent Document 1, the moisture that has accumulated in the inner lid dew tray returns to the inner lid gasket when the inner lid is closed again and is held in the inner lid gasket by surface tension. However, if the lid is closed forcefully, the moisture may splash out from the inner lid dew tray and fall onto the food.

[0008] An object of the present invention is to provide a cooking appliance that can reduce the amount of dew adhering to the inner lid or inner lid gasket that falls onto food ingredients when the lid is opened. [Means for solving the problem]

[0009] The cooker of the present invention comprises: a cooking appliance body that houses the inner pot; a cover that covers the cooking device body in an openable and closable manner, the rear end of which is rotatably attached to the cooking device body and biased in an opening direction; The lid body has an inner lid detachably attached to the underside thereof to airtightly close the inner pot, The inner lid has an inner lid plate that covers the inner pot, and an inner lid gasket that is attached to the outer periphery of the inner lid plate. A cooking appliance, The inner lid packing has a base portion extending in the outer circumferential direction of the inner lid plate, a peripheral wall portion extending from the base portion in the direction of entering the inner pot when the lid body is closed, and a lip portion including a curved portion curved inward from the tip of the peripheral wall portion, and a groove portion formed by the base portion and the lip portion on the inner surface side of the lip portion, An obstacle is provided on the inner surface of the groove at a position lower than the center when the lid is open, to hinder the progress of dew that has adhered to the inner lid when the lid is opened.

[0010] The obstacle may be a rib protruding from the inner circumferential surface of the groove.

[0011] It is desirable that the tip of the rib be lower in height than the tip of the curved portion.

[0012] The rib may include a first rib formed at a lowermost position when the lid is open.

[0013] The first rib may have a tip that faces the top surface when the lid is open.

[0014] The ribs may include a second rib formed at a position above the first rib when the lid is open.

[0015] the inner cover plate has a bulging wall on the inner surface side of the base portion, the bulging wall extending in the same direction as the peripheral wall portion, It is desirable that a gap be formed between the tip of the rib and the protruding wall.

[0016] The cooker body may be configured such that, when the lid is open, a dew tray is formed directly below the tip of the lip portion, which is the lowest part of the inner lid gasket. [Effects of the Invention]

[0017] According to the cooker of the present invention, when the lid is opened, dew adhering to the inner lid plate or inner lid gasket falls along the inner surface of the inner lid gasket, i.e., the inner surface of the peripheral wall and lip. By providing an obstacle in this path, the dew can be temporarily blocked by the obstacle and its falling speed can be slowed. This allows the dew to remain on the inner surface of the inner lid gasket until the lid is fully opened, reducing the amount of dew that falls onto the ingredients. [Brief explanation of the drawings]

[0018] [Figure 1] FIG. 1 is a perspective view of an electric pressure cooker according to one embodiment of the present invention. [Figure 2] FIG. 2 is a perspective view of the electric pressure cooker with the lid open. [Figure 3] FIG. 3 is a cross-sectional view taken along line AA in FIG. 1 and seen in the direction of the arrow. [Figure 4] FIG. 4 is a cross-sectional view of the device with the cover open. [Figure 5] FIG. 5 is a bottom view of the lid. [Figure 6] FIG. 6 is a cross-sectional view taken along line BB in FIG. 5 and seen in the direction of the arrow. [Figure 7] FIG. 7 is a perspective cross-sectional view of the rectangular portion C in FIG. 6, with the orientation rotated in the direction in which the lid is opened. [Figure 8] FIG. 8 is an enlarged perspective view of the rectangular area D in FIG. [Figure 9] 9 is an enlarged cross-sectional view of a rectangular portion E in FIG. 4. FIG. 9 is a perspective view of the latch lever as seen obliquely from below. DETAILED DESCRIPTION OF THE INVENTION

[0019] In the following, an embodiment in which the present invention is applied to a heating and pressurizing cooker (electric pressure cooker 10) will be described as a cooker, but the present invention can also be applied to cookers that only heat. Examples of this type of cooker include pressure rice cookers, thermal cookers, soup jars, food processors, mixers, blenders, electric kettles, and other kitchen appliances.

[0020] FIG. 1 is a perspective view of an electric pressure cooker 10 (hereinafter referred to as "pressure cooker") according to one embodiment of the present invention with the lid 30 closed, FIG. 2 is a perspective view of the electric pressure cooker with the lid 30 open, FIG. 3 is a cross-sectional view taken along line AA in FIG. 1, and FIG. 4 is a cross-sectional view taken along line AA in FIG. 1 with the lid 30 open.

[0021] The pressure cooker 10 is constructed by attaching an openable lid 30 to the top of the pressure cooker body 20, which is the cooking appliance body. The exterior of the pressure cooker body 20 is covered by an exterior casing 21, and inside it is provided a bowl-shaped recessed protective frame 22 (Figure 3) and a shoulder case 25 that surrounds the outer periphery of the top surface of the protective frame 22.

[0022] The protective frame 22 detachably houses the inner pot 11 shown in Fig. 2. The inner pot 11 is a cylindrical container with a bottom into which food ingredients are placed and cooked, and has a flange 11a curved outward at the upper edge. Reference numeral 11b denotes a handle.

[0023] Inside the pressure cooker body 20, a heater 23 for heating is installed on the outer periphery of the protective frame 22, or on the bottom surface of the protective frame 22 in Figure 3, and by operating a switch 24, which is a dial type in the figure, the inner pot 11 can be heated to cook ingredients or keep them warm.

[0024] 3 and 4 and enlarged cross-sectional view 9 described later, lid 30 is rotatably supported at the rear end of pressure cooker body 20 by hinge mechanism 12 and closes pressure cooker body 20 during cooking. Lid 30 is constantly biased in the opening direction relative to pressure cooker body 20 by lid biasing means 13 such as a coil spring.

[0025] The lid 30 has an opening / closing mechanism 34 that engages with the pressure cooker body 20. Operating the opening / closing mechanism 34 opens the lid 30, and manually pushing the lid 30 to close it causes the opening / closing mechanism 34 to keep the lid 30 closed. Detailed explanations of the opening / closing mechanism 34 are omitted here, but it may include an operating section 34a that is pressed by the user and a latch lever 34b that operates in conjunction with the operating section 34a. A latch claw 34c is formed at the tip of the latch lever 34b, as shown in Figure 2, and the lid 30 can be closed by fitting the latch claw 34c into the latch receiver 20a of the pressure cooker body 20.

[0026] The exterior of the lid 30 is covered by a lid cover 31, and has a pressurizing mechanism 36 inside to enable pressurization of the inner pot 11. The pressurizing mechanism 36 has a steam passage 36a in the lid 30 that connects the inner pot 11 to the outside, and a pressure valve 36c that blocks the steam passage 36a to keep the inside of the inner pot 11 airtight.

[0027] 1, steam passage 36a opens at steam hole 36b formed on the upper surface of lid body 30. Inner lid 40 is attached to the lower surface side of lid body 30, and steam passage 36a opens at inner lid 40 at opening 41a.

[0028] The pressure valve 36c is located on the inner lid 40 and can open and close the steam passage 36a. The illustrated pressure valve 36c opens and closes the inner lid 40-side opening 41a of the steam passage 36a in response to the operation of a pressure operation button 36d protruding from the top surface of the lid 30. For example, as shown in FIG. 2, the pressure valve 36c can be attached to the underside of the inner lid 40 and configured to block the steam passage 36a from below. The pressure operation button 36d can have a knock cam structure, so that pressing the pressure operation button 36d once closes the pressure valve 36c and pressing it again opens the pressure valve 36c. When performing pressure cooking, the user simply operates the pressure operation button 36d to close the pressure valve 36c, creating an airtight state inside the inner pot 11, and then performs heating. After cooking is complete, before opening the lid 30, the user again operates the pressure valve 36c to release the pressure inside the inner pot 11 and then open the lid 30.

[0029] The pressure mechanism 36 is not limited to the above configuration and may be an electric type that uses a solenoid, etc. Furthermore, the operating direction of the pressure valve 36c and the operating method of the pressure operation button 36d are not limited to those described above.

[0030] The inner lid 40, which is provided with the pressure valve 36c described above, is detachably attached to the underside of the lid body 30. Fig. 5 is a bottom view of the inner lid 40, and Fig. 6 is a cross-sectional view taken along line BB in Fig. 5. The inner lid 40 has an inner lid plate 41 that covers the inner pot 11 and an inner lid ring 44 attached to the outer periphery of the inner lid plate 41, with an inner lid gasket 50 attached between the inner lid plate 41 and the inner lid ring 44. Each component will be described in detail below.

[0031] As shown in FIG. 6, the inner cover plate 41 of this embodiment has a dish-like shape with a downward recess, and a pressure valve 36c is provided in the center. More specifically, the inner cover plate 41 has a cylindrical bulging wall 42 extending downward, and a disk-shaped inner cover body 43 is formed at the tip of the inner cover plate 41. As shown in FIG. 6, the inner cover body 43 is provided with a pressure regulating mechanism 48 that communicates with the steam passage 36a. The pressure regulating mechanism 48 is composed of, for example, a negative pressure valve, a pressure regulating valve, and a safety valve. The negative pressure valve (negative pressure packing) is a valve that introduces outside air when negative pressure is created inside the inner pot 11, and the pressure regulating valve is a valve that operates when the pressure inside the inner pot 11 exceeds a predetermined value. The safety valve is a valve that operates when the pressure regulating valve fails to operate for some reason, preventing the inner pot 11 from being abnormally pressurized. If solid foodstuffs such as leafy greens get into these pressure regulating mechanisms 48, normal valve operation will be hindered. Therefore, as shown in FIGS. 5 and 6, pressure regulating mechanisms 48 are covered with pressure regulating body covers 48a.

[0032] The inner lid ring 44 is an annular member attached to the outer periphery of the inner lid plate 41, and has locking pieces 45, 46, and 47 protruding from the outer periphery of the inner lid ring 44.

[0033] As shown in FIG. 6 and FIG. 7 described later, the inner lid ring 44 sandwiches and fixes the inner lid gasket 50 between the inner peripheral surface 44a of the inner lid ring 44 and the outer peripheral surface of the bulging wall 42 of the inner lid plate 41.

[0034] The locking pieces 45 and 46 are members used when attaching the inner lid 40 to the lid body 30, and the locking piece 47 is a member used when removing the inner lid 40; these are formed on the outer periphery of the inner lid ring 44. Reference numeral 45 denotes a positioning piece that becomes the lower side when the inner lid 40 is attached. The positioning piece 45 is formed to be wide in the left-right direction, as shown in Figures 5 and 6. As shown in Figure 2, the lid body 30 has two positioning protrusions 32 at positions that become the lower side of the inner surface when the lid body 30 is open. The positioning piece 45 is inserted behind the positioning protrusions 32 to position and fix the lower side of the inner lid 40 to the lid body 30.

[0035] Reference numeral 46 denotes a locking claw that is on the upper side when the inner lid 40 is attached. As shown in FIGS. 5 and 6, the locking claw 46 protrudes from the center of the front end of the inner lid 40. As shown in FIG. 2, the lid body 30 has a spring-biased hook 33 formed in the center of the upper inside surface when the lid body 30 is open. With the lower side positioned by the positioning piece 45, by pushing the inner lid 40 in, the locking claw 46 engages with the hook 33 and the inner lid 40 is attached to the lid body 30.

[0036] Reference numeral 47 denotes tabs that the user pulls to remove the inner lid 40. As shown in FIG. 5, the tabs 47 are provided on the left and right sides of the locking claw 46. By pulling either tab 47, the locking claw 46 is disengaged from the hook 33, allowing the inner lid 40 to be removed.

[0037] As shown in Figures 5 and 6, the inner lid gasket 50 is attached to the outer periphery of the inner lid plate 41, and as shown in Figure 3, when the lid body 30 is closed, it airtightly seals the gap between the inner lid plate 41 and the inner pot 11. The inner lid gasket 50 is made of an elastic material such as silicone rubber.

[0038] 7 is an enlarged perspective cross-sectional view of the rectangular area C in FIG. 6, with the orientation aligned with the state in which the lid body 30 is open, and FIG. 8 is an enlarged perspective view of the rectangular area C in FIG. 5.

[0039] As shown in Figure 7 (see also Figure 8), the inner lid gasket 50 has a mounting tube portion 51 that covers the outer periphery of the bulging wall 42 of the inner lid plate 41, a base portion 52 that protrudes outward from the mounting tube portion 51, a flange portion 53 that extends further outward from the base portion 52, and a lip portion 54 that extends forward (downward when the lid body 30 is closed) from between the base portion 52 and the flange portion 53.

[0040] As shown in FIG. 3, when the lid body 30 is closed, the flange portion 53 abuts against the flange portion 11a of the inner hook 11 to seal the inner hook 11 airtightly.

[0041] In addition, the lip portion 54 has a peripheral wall portion 54a extending forward from the base portion 52 and a curved portion 54b curved inward from the tip of the peripheral wall portion 54a. As shown in Fig. 3, when the lid body 30 is closed, the peripheral wall portion 54a of the lip portion 54 enters the inner periphery of the inner hook 11 and comes into contact with the inner circumferential surface of the inner hook 11, sealing the inner hook 11 airtightly.

[0042] The lip portion 54 has a shape in which the curved portion 54b at the tip is curved inward, so that a roughly U-shaped groove 55 is formed on the inner periphery of the lip portion 54 by the base portion 52 and the lip portion 54. When the lid body 30 is opened, dew that has adhered to the inner periphery of the inner lid body 43 of the inner lid plate 41 or the inner periphery of the inner lid gasket 50 flows into this groove 55.

[0043] When the lid 30 is being opened, if dew that has flowed into the groove 55 slides down the inner circumferential surface of the groove 55 with force, some of the dew may spill down the groove 55, i.e., the tip of the curved portion 54b of the lip 54, and get on the food. Also, when the lid 30 is open, the dew that flows down the groove 55 may collect at the lowest part 55a of the inner lid gasket 50 and overflow.

[0044] Therefore, in the present invention, as shown in FIGS. 7 and 8, an obstacle 56 is provided on the inner circumferential surface of the groove portion 55 to hinder the progress of the dew.

[0045] The illustrated obstacle 56 is a rib. The rib 56 protrudes from the inner periphery of the groove 55, i.e., from the base portion 52 and the lip portion 54, so as to block the groove 55. As shown in FIG. 7 , the tip 56a of the rib 56 is located on the inner periphery of the lid 30. However, in a preferred embodiment, the rib tip 56a is lower than the tip 54c of the curved portion 54b, i.e., the rib 56 does not completely block the groove 55. If the rib tip 56a were to extend to the same extent as the tip 54c of the curved portion 54b, the dew passing through the groove 55 would be completely blocked, causing it to overflow quickly and fall onto the food or the shoulder case 25. By making the rib 56 lower than the tip of the curved portion 54b, it is possible to prevent dew from overflowing from the groove 55. The difference in height between the rib tip 56a and the tip 54c of the curved portion 54b is preferably 0.5 mm to 2.0 mm.

[0046] When the lid body 30 is opened, dew adhering to the inner lid body 43 flows down below the center of the inner lid packing 50, so the rib 56 is formed below the center of the inner lid packing 50.

[0047] 8, the ribs 56 are a first rib 57 and a second rib 58. Of course, the number of ribs 56 is not limited to three, and a configuration may be adopted in which only the first rib 57, only the second rib 58, or four pairs of ribs are provided.

[0048] As shown in Figures 7 and 8, the first rib 57 is provided at the bottom of the inner lid gasket 50, designated by reference numeral 55a, which is the lowest part of the inner lid gasket 50 when the lid 30 is open. The first rib 57 has a shape in which the rib tip 56a faces the top surface when the lid 30 is open. The first rib 57 blocks dew flowing down from the left and right sides of the first rib 57, impeding the progress of the dew. This prevents the dew from colliding with each other and splashing, or from colliding and forming large clumps of water that fly out of the groove 55 with force.

[0049] Furthermore, the second rib 58 is provided at a position higher than the first rib 57 when the lid body 30 is open. The second rib 58 is preferably provided in a range of 30° to 90° from the first rib 57 with respect to the center of the inner lid gasket 50, and more preferably in a range of 30° to 45°. In the illustration, the second rib 58 is provided at a position of 40°.

[0050] The second rib 58 blocks the dew flowing down the groove 55 or slows down the speed at which the dew falls. This impedes the progress of the dew and delays the timing at which the dew reaches the lowest part 55a of the inner lid gasket 50, preventing the dew from overflowing from the groove 55 and falling onto the food ingredients while the lid body 30 is being opened.

[0051] As shown in FIG. 7 , it is desirable to provide a gap 59 between the tip 56a of the rib 56 and the protruding wall 42 of the inner lid 40, rather than having the tip 56a of the rib 56 contact the protruding wall 42. By providing the gap 59, when the lid 30 is open, water passing through the groove 55 and overcoming the second rib 58 passes through the gap 59 due to surface tension and does not flow toward the tip 54c of the lip 54, preventing water from spilling from the groove 55. Furthermore, water that flows down the inner lid 43 and reaches the vicinity of the first rib 57 passes through the gap 59 due to surface tension and crosses over to the first rib 57, where it is collected at the bottom 55a of the groove 55. This reduces dew that adheres to the inner lid 43, thereby reducing the risk of dew falling onto food when the lid 30 is closed again. A suitable gap 59 is 0.5 mm to 2.0 mm.

[0052] On the other hand, even if ribs 56 are provided, if there is a large amount of dew adhering to the inner lid body 43 or the inner lid gasket 50, the water that has accumulated at the lowest part 55a of the inner lid gasket 50 will spill out of the groove 55. If this spilled water falls into the shoulder case 25 (see Figure 2), starch and other solidified substances will remain when it dries, creating an unsightly appearance. Therefore, in the present invention, as shown in Figures 2 to 4 and 9, the shoulder case 25 of the pressure cooker body 20 is provided with a dew tray 26 directly below the lowest part 55a of the inner lid gasket 50. Note that Figure 9 is an enlarged cross-sectional view of the squared area E in Figure 4.

[0053] In the drawing, the dew receiver 26 is a rectangular cylinder with an open top and a closed bottom, which is formed behind the protective frame 22 and is detachable from a dew receiver 27 recessed in the shoulder case 25 .

[0054] By providing dew tray 26 on shoulder case 25, water overflowing from inner lid packing 50 does not drip onto shoulder case 25, but falls into dew tray 26, preventing it from soiling shoulder case 25. Also, because dew tray 26 is provided on shoulder case 25, not on the lid body 30 side, the water in dew tray 26 will not splash onto the food even when lid body 30 is closed forcefully.

[0055] The dew tray 26 is detachable, so that it can be easily cleaned by removing the dew tray 26.

[0056] 2 and 4, the pressure cooker 10 of the present invention is constructed by attaching the inner lid 40 to the lid body 30, placing ingredients (not shown) in the inner pot 11, and then closing the lid body 30 as shown in FIGS. 1 and 3. The lip portion 54 of the inner lid gasket 50 penetrates the inside surface of the inner pot 11, and the peripheral wall portion 54a abuts against the inside surface of the inner pot 11. The flange portion 53 abuts against the flange portion 11a of the inner pot 11, and the inner lid 40 airtightly seals the inner pot 11. When pressure cooking is performed, the pressure operation button 36d of the pressure mechanism 36 is pressed, and the pressure valve 36c closes the opening 41a of the inner lid 40.

[0057] Then, by operating switch 24, cooking is performed by heating inner pot 11 with heater 23. As the ingredients in inner pot 11 are heated, the moisture in the ingredients evaporates and becomes trapped inside inner pot 11. When pressurizing mechanism 36 is not operating, some of the steam passes through steam passage 36a and is released to the outside from steam hole 36b.

[0058] When cooking is complete, if the pressurizing mechanism 36 is operating, the pressurizing mechanism 36 is operated to open the pressure valve 36c and reduce the pressure inside the inner pot 11. As a result, some of the steam passes through the steam passage 36a and is released to the outside from the steam hole 36b.

[0059] Then, the operating portion 34a is operated to open the lid 30. The lid 30 is biased in the opening direction by the lid biasing means 13, and this biasing force causes the lid 30 to open to an angle that is nearly vertical, as shown in Figures 2 and 4.

[0060] In the lid body 30, some of the steam generated during cooking becomes dew and adheres to the inner lid body 43 of the inner lid 40 and the inner surface of the lip portion 54 of the inner lid gasket 50. When the lid body 30 is opened, the dew that has adhered to the inner lid body 43 flows down the inner lid gasket 50 toward the groove portion 55 as shown by arrow F in Figure 8. Furthermore, the dew that has adhered to the groove portion 55 or that has entered the groove portion 55 from the inner lid body 43 slides down inside the groove portion 55 as shown by arrows G and H.

[0061] In the present invention, the inner lid gasket 50 has ribs 56 (first rib 57 and second rib 58) in the groove 55. The second rib 58 blocks dew (arrow G) sliding down the groove 55 from above the second rib 58, reducing the speed of the dew. This allows some of the dew to accumulate in the second rib 58, thereby reducing the amount of water flowing toward the first rib 57. Furthermore, because the rib tips 56a of the second ribs 58 do not completely block the groove 55, water that passes over the groove 55 flows back downstream of the groove 55, but at a reduced speed. This prevents the water from reaching the lowest part 55a of the groove 55 before the lid 30 is fully opened, preventing the groove 55 from overflowing at the lowest part 55a and falling onto the food.

[0062] The first rib 57 is provided at the lowermost portion 55a of the groove 55. This first rib 57 acts as a weir that prevents the water (dew) flowing from the left and right as indicated by arrows H from colliding with each other. This prevents the dew from the left and right from colliding and splashing, or from colliding and forming large clumps of water that fly out of the groove 55 with force.

[0063] As shown in Figure 7, by providing a gap 59 between the tip 56a of the rib 56 and the bulging wall 42, water that passes through the groove 55 and goes over the second rib 58 passes through the gap 59 side due to surface tension and does not flow toward the tip 54c of the lip 54, preventing water from spilling from the groove 55. Furthermore, water that has flowed down the inner lid body 43 and fallen near the first rib 57 (arrow I) passes through the gap 59 due to surface tension and crosses over to the first rib 57 side, where it can be collected at the lowest part 55a of the groove 55. This reduces dew that adheres to the inner lid body 43, reducing the amount of dew that falls onto the food when the lid body 30 is closed again.

[0064] When the lid 30 is open and water accumulates in the lowest part 55a of the groove 55 and overflows, the overflowing water drips down over the tip 54c of the curved part 54b of the lip 54, as shown by arrow J in Figure 9. The dripping water is collected in the dew tray 26 located directly below, so the shoulder case 25 does not get dirty.

[0065] The above description is for the purpose of explaining the present invention, and should not be construed as limiting the invention described in the claims or narrowing its scope. Furthermore, the configuration of each part of the present invention is not limited to the above embodiment, and various modifications are possible within the technical scope described in the claims.

[0066] In a heating and pressure cooking appliance such as the electric pressure cooker 10, which heats the food while keeping the inner pot 11 airtight using the pressure mechanism 36, steam is trapped inside the inner pot 11, causing a lot of dew to form on the inner lid 40. For this reason, the present invention is particularly effective when applied to this type of heating and pressure cooking appliance.

[0067] In this embodiment, the obstacles provided on the inner lid gasket 50 are ribs 56, but they may be in a form other than the ribs 56. For example, the obstacles may be point-like protrusions on the inner peripheral surface of the lip portion 54. [Explanation of symbols]

[0068] 10 Electric pressure cooker (cooker) 20 Pressure cooker body (cooker body) 26 Dew tray 27 Dew Acceptance 30 Lid 40 Inner lid 41 Inner lid plate 42 Bulging wall 43 Inner lid body 44 Inner lid ring 50 Inner lid gasket 52 Base 53 Flange 54 Lip 54a Peripheral wall part 54b Curved section 55 Groove 55a bottom 56 Rib (Obstacle) 56a Rib tip 57 First Rib 58 Second Rib 59 Gap

Claims

1. a cooking appliance body that houses the inner pot; a cover that covers the cooking device body in an openable and closable manner, the rear end of which is rotatably attached to the cooking device body and biased in an opening direction; The lid body has an inner lid detachably attached to the underside thereof to airtightly close the inner pot, The inner lid has an inner lid plate that covers the inner pot, and an inner lid gasket that is attached to the outer periphery of the inner lid plate. A cooking appliance, The inner lid packing has a base portion extending in the outer circumferential direction of the inner lid plate, a peripheral wall portion extending from the base portion in the direction of entering the inner pot when the lid body is closed, and a lip portion including a curved portion curved inward from the tip of the peripheral wall portion, and a groove portion formed by the base portion and the lip portion on the inner surface side of the lip portion, An obstacle is provided on the inner surface of the groove at a position lower than the center when the lid is open, to hinder the progress of dew that has adhered to the inner lid when the lid is opened. Cooker.

2. The obstacle is a rib protruding from the inner circumferential surface of the groove. The cooking device according to claim 1 .

3. The tip of the rib is lower in height than the tip of the curved portion. The cooking device according to claim 2 .

4. The ribs include a first rib formed at a lowermost position when the lid is open. The cooking device according to claim 3.

5. The first rib has a tip that faces the top surface when the lid is open. The cooking device according to claim 4.

6. The ribs include a second rib formed at a position higher than the first rib when the lid is open. The cooking device according to claim 5.

7. the inner cover plate has a bulging wall on the inner surface side of the base portion, the bulging wall extending in the same direction as the peripheral wall portion, A gap is formed between the tip of the rib and the protruding wall. The cooking device according to claim 6.

8. When the lid body is open, the cooker body has a dew tray formed directly below the tip of the lip portion, which is the lowest part of the inner lid gasket. A cooking device according to any one of claims 1 to 7.

Citation Information

Patent Citations

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