Pressure cooker

Abstract

To provide a pressure cooker capable of suppressing cooking in a state that a pressure regulating valve is not covered with a filter.SOLUTION: In the pressure cooker for cooking a food material by pressurizing and heating the food material in a space inside an inner pot, a lid body 20 opens a pressure regulating valve 41 and a safety valve 42 for regulating the pressure of the space inside the inner pot 12 to communicate the space inside the inner pot 12 with the outside, and closes the valves to bring the space inside the inner pot 12 into an airtight state. The pressure regulating device includes a pressure valve 50, a pressure operation part 23 operated by a user to cause the pressure valve 50 to perform an opening / closing operation, and a filter 60 for preventing a food material from entering a pressure regulating valve 41 and a safety valve 42, wherein the filter 60 moves from an open state to a closed state when the pressure operation part 23 is operated by the user to cause the pressure valve 50 to perform the opening / closing operation.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a pressure cooker technology for cooking food by pressurizing and heating it. [Background technology]

[0002] 2. Description of the Related Art Pressure cookers that automatically cook food by pressurizing and heating it have been well known. Patent Document 1 describes a cooking appliance that includes a bottomed, cylindrical pot with an open top, a main body that detachably houses the pot, a heating means disposed within the main body for heating the pot, a lid disposed on the main body that releasably seals the top opening of the pot, and an exhaust passage that connects an air vent in the lid facing the inside of the pot with the outside. The cooking appliance described in Patent Document 1 also includes a filter member that covers the air vent, which is the entrance to the exhaust passage that opens and closes the pressure regulating valve, on a partition of the lid facing the inside of the pot to prevent clogging by food or the like. The filter member prevents the pressure regulating valve from operating even when the pressure exceeds a predetermined level, preventing abnormal pressure from building up in the cooking space within the pot. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 5587243 Summary of the Invention [Problem to be solved by the invention]

[0004] When cleaning or maintaining the pressure regulating valve of such a pressure cooker, it is conceivable to remove the filter member or leave the filter member open, leaving the pressure regulating valve uncovered. However, if cooking is performed while the pressure regulating valve is accidentally uncovered by the filter member, food or the like may get into the pressure regulating valve. This may cause the pressure regulating valve to malfunction, resulting in an abnormal pressure in the cooking space.

[0005] The present invention has been made in consideration of the above-mentioned circumstances, and its object is to provide a pressure cooker that can prevent cooking from being performed when the pressure regulating valve is not covered by a filter. [Means for solving the problem]

[0006] The pressure cooker of the present invention comprises a main body having an opening and housing an inner pot, and a lid configured to open and close the opening of the main body, and is a pressure cooker that cooks ingredients by pressurizing and heating them in the space inside the inner pot, wherein the lid comprises a pressure regulating valve that adjusts the pressure in the space inside the inner pot, a pressure valve that connects the internal space of the inner pot to the outside when opened and makes the internal space of the inner pot airtight when closed, a pressure operating unit that is operated by a user to open and close the pressure valve, and a filter that covers the pressure regulating valve and prevents the ingredients in the space inside the inner pot from entering the pressure regulating valve, wherein the filter is configured to be movable between a closed state in which it covers the pressure regulating valve and an open state in which it does not cover the pressure regulating valve, and moves from the open state to the closed state when the pressure operating unit is operated by a user to open or close the pressure valve.

[0007] According to the pressure cooker of the present invention, cooking can be prevented from being performed in a state where the pressure regulating valve is not covered by the filter.

[0008] In the present invention, the lid body is provided with an inner lid that closes the opening of the inner pot so that the space inside the inner pot is airtight when the lid body closes the opening of the main body, and the filter is rotatably provided in the inner pot, and when the pressure operating unit is pressed by a user, the pressure valve moves to open and presses against the filter in an open state, and when pressed by the pressure valve, the filter rotates from the open state to the closed state.

[0009] According to this configuration, it is possible to realize a simple configuration that prevents cooking from being performed in a state where the pressure regulating valve is not covered by the filter.

[0010] In the present invention, it is preferable that the inner lid is configured to be able to hold the filter in an open state, and that when the filter is pressed against the pressure valve, the inner lid releases the filter from its open state and the filter rotates from its open state to its closed state.

[0011] According to this configuration, even if the filter is kept open, cooking can be prevented from being performed in a state where the pressure regulating valve is not covered by the filter. [Effects of the Invention]

[0012] The present invention has the following effects. That is, the container of the present invention can prevent cooking from being performed in a state where the pressure regulating valve is not covered by the filter. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is a perspective view showing a pressure cooker according to an embodiment of the present invention. [Figure 2] FIG. 10 is a perspective view showing the pressure cooker with the lid open. [Figure 3] This is a block diagram of a pressure cooker. [Figure 4]FIG. 10 is a cross-sectional view showing the lid of the pressure cooker with the pressure control unit in the closed position. [Figure 5] FIG. 10 is a cross-sectional view showing the lid of the pressure cooker with the pressure control unit in the open position. [Figure 6] This is a cross-sectional view of the pressure cooker filter in the closed state. [Figure 7] FIG. 10 is a perspective view showing the filter of the pressure cooker in a closed state. [Figure 8] FIG. 10 is a perspective view showing the filter of the pressure cooker in an open state. [Figure 9] FIG. 10 is an enlarged perspective view showing the filter of the pressure cooker in a closed state. [Figure 10] FIG. 10 is an enlarged perspective view showing the state in which the arm portion of the filter of the pressure cooker is elastically deformed. [Figure 11] FIG. 10 is an enlarged perspective view showing the filter of the pressure cooker in an open state. [Figure 12] This is a bottom view of the pressure cooker filter. [Figure 13] FIG. 10 is a perspective view showing the filter of the pressure cooker. DETAILED DESCRIPTION OF THE INVENTION

[0014] [Overall configuration of pressure cooker] Pressure cooker 1 is an embodiment of a pressure heating type electric pressure cooker, which is an example of a pressure cooker according to the present invention. Note that the pressure cooker according to the present invention is not limited to pressure cooker 1 and may be any cooker with a pressure function, such as a rice cooker, a thermal cooker, a pressure cooker, a soup jar, a food processor, a mixer, a blender, or other kitchen appliances.

[0015] The pressure cooker 1 automatically cooks food by pressurizing and heating it, and as shown in FIG. 1 or 2, comprises a main body 10 and a lid 20. The main body 10 has an opening 11 at the top and is configured as a cylindrical shape with a bottom. The lid 20 is configured as a generally flat disk. The lid 20 is attached to the main body 10 via a hinge provided at the rear upper part of the main body 10 and is configured to be rotatable relative to the main body 10. The lid 20 is configured to be able to open and close the opening 11 of the main body 10 by rotating relative to the main body 10. With the opening 11 of the main body 10 closed, the lid 20 makes the internal space of the main body 10 (the internal space of the inner pot 12) airtight. The lid 20 is urged in the opening direction by a spring member provided on the hinge.

[0016] [Main unit] As shown in FIGS. 1 to 3, the main body 10 includes an inner pot 12, a heater 13, a display unit 15, an operation unit 16, and a control unit 17.

[0017] The inner pot 12 is configured in a cylindrical shape with a bottom that opens upward, and is configured to be able to be stored in the space inside the main body 10. The space inside the inner pot 12 is configured as a space for pressure cooking using the pressure cooker 1. The user places ingredients and seasonings to be pressure-cooked in the space inside the inner pot 12. The heater 13 is a means for heating the inner pot 12, and is provided on the bottom and sides of the main body 10.

[0018] The display unit 15 is provided on the outer peripheral surface of the main body 10. The display unit 15 displays various statuses of the pressure cooker 1, such as the cooking menu, the current time, or the time when the food is ready. The operation unit 16 is provided on the outer peripheral surface of the main body 10. The operation unit 16 is used by the user to operate various settings of the pressure cooker 1. The control unit 17 controls various operations of the pressure cooker 1. The control unit 17 is electrically connected to the heater 13, the display unit 15, the operation unit 16, and the opening / closing operation unit 24.

[0019] [Lid] As shown in Figures 1, 2, 4, 5, and 6, the lid body 20 includes a cover 21, a steam vent 22, an inner lid 30, a pressure control unit 23, an opening / closing control unit 24, a pressure adjustment unit 40, and a filter 60.

[0020] The cover 21 is configured to have a generally circular shape in a plan view. The cover 21 is configured to be open at the bottom. The steam vent 22 releases steam generated in the space inside the inner pot 12 to the outside when the lid body 20 is in a state where the opening 11 of the main body 10 is closed by the lid body 20. The steam vent 22 is located rearward of the center on the top surface of the cover 21. The steam vent 22 is configured to be able to communicate with the exhaust holes 31, 32, and 33 formed in the inner lid 30 via a steam passage.

[0021] The opening / closing operation unit 24 is provided on the upper front part of the lid body 20. The opening / closing operation unit 24 is configured to lock the lid body 20 to the main body 10 when the lid body 20 is closed over the opening 11 of the main body 10, thereby maintaining the lid body 20 in a closed state over the opening 11 of the main body 10. When the opening / closing operation unit 24 is pressed by the user, the locked state of the lid body 20 is released, and the lid body 20 is rotated in the opening direction by the spring member, so that the opening 11 of the main body 10 is opened.

[0022] The inner lid 30 closes the opening of the inner kettle 12 so that the space inside the inner kettle 12 is airtight when the lid body 20 closes the opening 11 of the main body 10. The inner lid 30 is configured in a generally flat disk shape. The inner lid 30 is detachably arranged on the cover 21. The inner lid 30 is attached to the lower part of the cover 21 by being locked. When attached to the lower part of the cover 21, the inner lid 30 keeps the internal space of the cover 21 airtight.

[0023] 4 to 11, the inner lid 30 has exhaust holes 31, 32, and 33 that are opened and closed by valves 41, 42, and 50 of the pressure adjustment unit 40. The exhaust hole 31 is opened and closed by the pressure adjustment valve 41, the exhaust hole 32 is opened and closed by the safety valve 42, and the exhaust hole 33 is opened and closed by the pressure valve 50. The exhaust holes 31 and 32 are formed rearward of the center of the inner lid 30, and the exhaust hole 33 is formed approximately in the center of the inner lid 30.

[0024] The inner lid 30 is equipped with a pair of left and right brackets 34 and 35. The brackets 34 and 35 rotatably support the filter 60. The brackets 34 and 35 protrude downward from the underside of the inner lid 30. The brackets 34 and 35 are positioned slightly rearward of the center of the inner lid 30. The brackets 34 and 35 are positioned between the exhaust holes 31 and 32 and the exhaust hole 33. The brackets 34 and 35 are positioned side by side in the left-right direction. Bracket 34 indicates the bracket positioned on the left, and bracket 35 indicates the bracket positioned on the left. Axial holes into which the shaft portion 66 of the filter 60 is inserted are formed on the left and right sides of the lower end of the brackets 34 and 35, respectively.

[0025] When operated by a user, pressure operation unit 23 causes pressure valve 50 to open and close steam hole 33, thereby switching between normal pressure cooking (non-pressurized mode) and pressurized cooking with heating (pressurized mode). As shown in Figures 4 to 6, pressure operation unit 23 includes shaft 23a, operating body 23b, and spring member 23c.

[0026] The shaft 23a of the pressure operation unit 23 is arranged inside the cover 21 so as to be movable in the vertical direction. The shaft 23a is arranged approximately in the center of the cover 21 in a plan view, and is configured to extend from near the upper end to near the lower end of the cover. The operating body 23b is configured as a part that is operated by the user. The operating body 23b is provided at the upper end of the shaft 23a. The operating body 23b is arranged in a through-hole formed in approximately the center of the upper surface of the cover 21 in a plan view. The upper part of the operating body 23b protrudes slightly upward from the upper surface of the cover 21, and is configured to be operable by the user. When the operating body 23b is pressed by the user, the shaft 23a moves upward and downward. The spring member 23c urges the shaft 23a upward.

[0027] The pressure operation unit 23 is configured with a knock cam structure, and each time the user presses the operating body 23b, it repeatedly moves from the "closed position of the pressure operation unit 23" via the "pressed position of the pressure operation unit 23" to the "open position of the pressure operation unit 23", and from the "open position of the pressure operation unit 23" via the "pressed position of the pressure operation unit 23" to the "closed position of the pressure operation unit 23".

[0028] The closed position of the pressure operation unit 23 indicates a state in which the pressure operation unit 23 is located at the uppermost position within the range of movement of the pressure operation unit 23 in the vertical direction. In the closed position of the pressure operation unit 23, the pressure valve 50 closes the steam vent 33 (see FIG. 4). The pressed-in position of the pressure operation unit 23 indicates a state in which the pressure operation unit 23 is located at the lowermost position within the range of movement of the pressure operation unit 23 in the vertical direction. The open position of the pressure operation unit 23 indicates a state in which the pressure operation unit 23 is located midway up or down within the range of movement of the pressure operation unit 23 in the vertical direction. In the open position of the pressure operation unit 23, the pressure valve 50 opens the steam vent 33 (see FIG. 5). When the user presses the operating body 23b in the closed position of the pressure operation unit 23, the pressure operation unit 23 moves downward to the pressed-in position, and when the user releases the pressing of the operating body 23b, the pressure operation unit 23 moves upward to the open position. When the user presses the operating body 23b in the valve-open position of the pressure operating unit 23, the pressure operating unit 23 moves downward to the pressed-in position, and when the user releases the pressing operation of the operating body 23b, the pressure operating unit 23 moves upward to the valve-closed position.

[0029] [Pressure adjustment unit] The pressure adjustment unit 40 adjusts the pressure in the space inside the inner pot 12 and maintains the space inside the inner pot 12 in a pressurized state. As shown in FIG. 8, the pressure adjustment unit 40 is disposed inside the cover 21 and above the inner lid 30. The pressure adjustment unit 40 includes pressure adjustment valves (pressure adjustment valve 41 and safety valve 42) and a pressure valve 50.

[0030] The pressure regulating valve 41 of the pressure regulating unit 40 adjusts the pressure in the space inside the inner pot 12. With the pressure valve 50 closed, the pressure regulating valve 41 automatically opens when the space inside the inner pot 12 reaches a predetermined pressure. When the pressure regulating valve 41 is opened, steam in the space inside the inner pot 12 is released from the steam hole 22 via the exhaust hole 31. The pressure regulating valve 41 is composed of, for example, a pressure regulating ball or the like that can open and close the exhaust hole 31.

[0031] The safety valve 42 of the pressure regulating unit 40 regulates the pressure in the space inside the inner pot 12. When the pressure in the space inside the inner pot 12 reaches the predetermined pressure while the pressure valve 50 is closed, if the pressure regulating valve 41 does not operate and the space inside the inner pot 12 becomes abnormally high pressure, the safety valve 42 automatically opens. When the safety valve 42 opens, steam in the space inside the inner pot 12 is released from the steam hole 22 via the exhaust hole 32. The safety valve 42 is composed of, for example, a valve element or the like that can open and close the exhaust hole 32.

[0032] The pressure valve 50 of the pressure adjustment unit 40 is moved by the user operating the pressure operation unit 23, opening and closing the steam hole 33. By opening the exhaust hole 33, the pressure valve 50 connects the exhaust hole 33 to the steam hole 22, thereby connecting the interior space of the inner pot 12 to the outside. By closing the exhaust hole 33, the pressure valve 50 maintains the interior space of the inner pot 12 in an airtight state. When the user operates the pressure operation unit 23 to open the pressure valve 50, normal pressure cooking (non-pressurized mode) is performed, in which the interior space of the inner pot 12 is heated while connecting the interior space of the inner pot 12 to the outside. When the user operates the pressure operation unit 23 to close the pressure valve 50, pressurized cooking (pressurized mode) is performed, in which the interior space of the inner pot 12 is heated while maintaining an airtight state. The pressure valve 50 comprises a valve body 51 and a valve spring 52.

[0033] The valve body 51 of the pressure valve 50 includes a valve stem 51a and a valve plate 51b. The valve stem 51a is inserted through the exhaust hole 33 and is configured to be movable up and down relative to the exhaust hole 33. The valve plate 51b is provided at the lower end of the valve stem 51a and is positioned below the exhaust hole 33. The valve plate 51b is positioned in the space inside the inner pot 12 when the lid 20 closes the opening 11 of the body 10. The valve plate 51b is configured in the shape of a flat disk, and the diameter of the valve plate 51b is configured to be larger than the diameter of the exhaust hole 33. A seal member is provided on the valve plate 51b. The valve spring 52 urges the valve body 51 upward.

[0034] When the pressure operation unit 23 moves to the valve-closed position, the valve body 51 moves upward due to the biasing force of the valve spring 52, and the upper surface of the valve plate 51b (a seal member provided on the valve plate 51b) of the valve body 51 abuts against the lower surface of the inner lid 30 around the exhaust hole 33. In this way, the pressure valve 50 closes the exhaust hole 33 (see FIG. 4). At this time, the pressure valve 50 is located at the uppermost position in its vertical movement range. When the pressure operation unit 23 moves to the pressed-in position, the valve body 51 moves downward against the biasing force of the valve spring 75, and the upper surface of the valve plate 51b of the valve body 51 moves away from the lower surface of the inner lid 30 around the exhaust hole 33. At this time, the pressure valve 50 is located at the lowermost position in its vertical movement range. Even when the pressure operation unit 23 moves to the valve-opened position, the upper surface of the valve plate 51b of the valve body 51 remains away from the lower surface of the inner lid 30 around the exhaust hole 33. In this way, the pressure valve 50 opens the exhaust port 363 (see FIG. 5). At this time, the pressure valve 50 is positioned at the vertical midpoint in the range of movement of the pressure valve 50 in the vertical direction.

[0035] Filter The filter 60 prevents ingredients (for example, solids such as leafy vegetables) being pressure-cooked in the space inside the inner pot 12 from entering the pressure regulating valve 41 and the safety valve 42 (the exhaust hole 31 that the pressure regulating valve 41 opens and closes, and the exhaust hole 32 that the safety valve 42 opens and closes). In this way, by preventing ingredients from entering the pressure regulating valve 41 and the safety valve 42 with the filter 60, malfunctions of the pressure regulating valve 41 and the safety valve 42 are suppressed, and abnormal pressure is prevented from occurring in the space inside the inner pot 12.

[0036] The filter 60 is made of a resin material. As shown in Figures 4 to 13, the filter 60 is provided on the underside of the inner lid 30 and is placed in the space inside the inner pot 12 when the lid body 20 closes the opening 11 of the main body 10.

[0037] The filter 60 is supported by brackets 34 and 35 of the inner lid 30 and is configured to be rotatable in the front-to-rear direction relative to the underside of the inner lid 30. When the filter 60 is rotated to the rearmost position, it is located below the pressure regulating valve 41 and the safety valve 42 and covers them (see FIG. 7). In this state, the filter 60 prevents ingredients being pressurized and cooked in the space inside the inner pot 12 from entering the pressure regulating valve 41 and the safety valve 42. When the filter 60 is rotated to the frontmost position, it abuts against the valve stem 51a of the valve body 51 of the pressure valve 50 (see FIG. 8). In the following description, the state in which the filter 60 is rotated all the way to the rear and covers the pressure regulating valve 41 and the safety valve 42 will be referred to as the "closed state of the filter 60 (see FIG. 4 or FIG. 5)," and the state in which the filter 60 is rotated all the way to the front and does not cover the pressure regulating valve 41 or the safety valve 42 will be referred to as the "open state of the filter 60 (see FIG. 6)." The filter 60 is configured to be movable between a closed state and an open state by rotating. The rotation range of the filter 60 between the closed state and the open state is set to, for example, 164°, but is not limited to this. The filter 60 is biased by a rotation spring member to rotate rearward (toward the closed state of the filter 60).

[0038] The filter 60 includes a receiving surface portion 61, a wall portion 62, a plurality of (three in this embodiment) arm portions 63, 64, 65, and a plurality of (three in this embodiment) shaft portions 66, 66, 66.

[0039] The receiving surface portion 61 of the filter 60 is configured as a flat plate having a generally rectangular shape in a plan view. The receiving surface portion 61 is configured to overlap the pressure regulating valve 41 and the safety valve 42 in a plan view when the filter 60 is in a closed state. The wall portions 62 are provided on each edge of the receiving surface portion 61 except for the front edge when the filter 60 is in a closed state. The wall portions 62 protrude upward from both side edges and the rear edge of the receiving surface portion 61 when the filter 60 is in a closed state. In other words, when the filter 60 is in a closed state, the filter 60 is configured so that the front is open and the wall portions 61 and 62 cover the pressure regulating valve 41 and the safety valve 42. Because the front of the filter 60 is open when the filter 60 is in a closed state, steam generated in the space inside the inner pot 12 enters through the front opening of the filter 60 and reaches the pressure regulating valve 41 and the safety valve 42. The pressure regulating unit 40 is equipped with a check valve that returns condensation water accumulated in the pressure regulating unit 40, liquids contained in ingredients, and starch, etc., into the inner pot 12, and the filter 60 may be configured so that the check valve overlaps with the filter 60 in a planar view when the filter 60 is in a closed state.

[0040] The left arm 63 of the filter 60 protrudes forward from the front edge of the left wall 62 when the filter 60 is rotated rearward. The left arm 63 is disposed adjacent to the left (outside) side of the left bracket 34 of the inner lid 30. The left arm 63 is configured in a flat plate shape and is configured to be elastically deformable in the left-right direction. The right arm 64 protrudes forward from the front edge of the right wall 62 when the filter 60 is rotated rearward. The right arm 64 is disposed adjacent to the right (outside) side of the right bracket 35 of the inner lid 30. The arm 65 protrudes forward from the front edge of the midpoint between the left and right sides of the receiving surface 61 when the filter 60 is rotated rearward. The arm 65 is disposed between the left and right brackets 34 and 35.

[0041] The shafts 66 are inserted into shaft holes formed in the brackets 34 and 35 of the inner lid 30 and serve as rotation shafts for rotating the filter 60. The three shafts 66 protrude rightward from the front of the left arm 63, protrude leftward from the front of the right arm 64, and protrude leftward from the front of the center arm 65.

[0042] [Configuration that keeps the filter open] 8 or 11, the inner lid 30 is configured to be able to keep the filter 60 open when the pressure valve 50 closes the steam vent 33. The inner lid 30 and the filter 60 are engaged with each other, so that the lid 30 keeps the filter 60 open. The inner lid 30 has a cutout 36, and the filter 60 has a protrusion 67, and the cutout 36 of the inner lid 30 engages with the protrusion 67 of the filter 60, so that the inner lid 30 keeps the filter 60 open.

[0043] The cutout portion 36 of the inner lid 30 is provided in the left bracket 34. The cutout portion 36 is configured to cut out the left side surface of the left bracket 34. The lower surface of the cutout portion 36 is configured as a surface that is approximately parallel to the lower surface of the inner lid 30, the right surface of the cutout portion 36 is configured as a surface that is approximately perpendicular to the lower surface of the inner lid 30, and the upper surface of the cutout portion 36 is configured as a surface that slopes upward as it goes outward to the left.

[0044] The protrusion 67 of the filter 60 is provided on the left arm 63. The protrusion 67 protrudes rightward from the front of the left arm 63. The protrusion 67 is configured in a shape that generally matches the cutout 36 of the inner lid 30.

[0045] When the filter 60 rotates forward from the closed state with the pressure valve 50 closing the steam hole 33, the left arm 63 elastically deforms outward, and the convex portion 67 of the filter 60 fits into the cutout portion 36 of the inner lid 30 (see FIG. 10). When the filter 60 is in the open state, the convex portion 67 of the filter 60 fits into the cutout portion 36 of the inner lid 30, and the cutout portion 36 of the inner lid 30 and the convex portion 67 of the filter 60 engage (see FIG. 11). The convex portion 67 of the filter 60 engages with the cutout portion 36 of the inner lid 30, so that the inner lid 30 maintains the open state of the filter 60.

[0046] In this way, the inner lid 30 is configured to be able to keep the filter 60 open, so that the pressure adjustment valve 41 and the safety valve 42 of the pressure adjustment unit 40 can be kept not covered by the filter 60. Therefore, maintenance work such as cleaning of the pressure adjustment valve 41 and the safety valve 42 of the pressure adjustment unit 40 can be performed more easily than in a configuration in which the inner lid 30 does not keep the filter 60 open.

[0047] [About the operation when the filter is released from the open state] The filter 60 can be released from its open state when the user operates the pressure control unit 23 to switch between normal pressure cooking (non-pressurized mode) and pressurized cooking (pressurized mode). When the filter 60 is in the open state (see FIG. 6 ), as described above, the pressure valve 50 closes the steam vent 33, and the user presses the operating body 23b of the pressure control unit 23, causing the pressure valve 50 to open the steam vent 33. As the pressure control unit 23 moves from the closed position to the pressed position, the valve body 51 of the pressure valve 50 moves downward, and the underside of the valve plate 51b of the valve body 51 presses the filter 60. Pressed by the pressure valve 50 in this manner, the filter 60 rotates backward from its open state. At this time, the left arm 63 of the filter 60 elastically deforms outward, causing the protrusion 67 of the filter 60 to gradually fall out of the notch 36 of the inner lid 30 (see FIG. 10 ). When the engagement between the notch 36 of the inner lid 30 and the protrusion 67 of the filter 60 is released, the inner lid 30 no longer holds the filter 60 in the open state. When the engagement between the notch 36 of the inner lid 30 and the protrusion 67 of the filter 60 is released, the filter 60 is biased by the rotation spring member and rotates rearward to the closed state (see Figures 5, 8, or 11). The rotation angle of the filter 60 at which the engagement between the notch 36 of the inner lid 30 and the protrusion 67 of the filter 60 is released can be set appropriately according to specifications.

[0048] The inner lid 30 is configured to be able to maintain the filter 60 in an open state when the pressure valve 50 closes the steam vent 33. In addition, the inner lid 30 may be configured to be able to maintain the filter 60 in an open state when the pressure valve 50 opens the steam vent 33. In this configuration, even when the pressure valve 50 opens the steam vent 33, the open state of the filter 60 is released when the user presses the operating body 23b of the pressure operation unit 23. The operation of releasing the open state of the filter 60 in this case will be described below. When the user presses the operating body 23b of the pressure operation unit 23, the pressure operation unit 23 moves from the open position toward the pressed-in position, causing the valve body 51 of the pressure valve 50 to move downward, pressing the filter 60 with the underside of the valve plate 51b of the valve body 51. Pressed by the pressure valve 50 in this manner, the filter 60 rotates backward from the open state. At this time, the left arm 63 of the filter 60 elastically deforms outward, and the protrusion 67 of the filter 60 gradually falls off from the notch 36 of the inner lid 30 (see FIG. 10). When the engagement between the notch 36 of the inner lid 30 and the protrusion 67 of the filter 60 is released, the inner lid 30 no longer holds the filter 60 in the open state. Then, when the engagement between the notch 36 of the inner lid 30 and the protrusion 67 of the filter 60 is released, the filter 60 is biased by the rotation spring member and rotates rearward to the closed state (see FIG. 5, FIG. 8, or FIG. 11).

[0049] As described above, when the user operates the pressure control unit 23 to open or close the pressure valve 50, the filter 60 changes from an open state to a closed state. This prevents cooking from being performed with the pressure regulating valve 41 and the safety valve 42 not covered by the filter 60. This prevents ingredients from entering the pressure regulating valve 41 and the safety valve 42, causing the pressure regulating valve 41 and the safety valve 42 to malfunction, and thus creating abnormal pressure in the internal space of the inner pot 12.

[0050] As described above, when the user presses the pressure operation unit 23, the pressure valve 50 presses the filter 60, which is in the open state, and the filter 60 changes from the open state to the closed state when pressed by the pressure valve 50. Therefore, a simple configuration can be realized that prevents cooking from being performed when the pressure adjustment valve 41 and the safety valve 42 are not covered by the filter 60.

[0051] As described above, the inner lid 30 is configured to be able to hold the filter 60 in an open state, and when the filter 60 is pressed by the pressure valve 50, the open state of the filter 60 is released from being held by the inner lid, and the filter 60 changes from the open state to the closed state. Therefore, even if the filter 60 is configured to be held in an open state, cooking can be prevented from being performed with the pressure adjustment valve 41 and the safety valve 42 not covered by the filter 60.

[0052] Furthermore, as described above, the inner lid 30 and the filter 60 are engaged with each other, so that the inner lid 30 maintains the open state of the filter 60. Therefore, a configuration for maintaining the open state of the filter 60 can be realized with a simple configuration.

[0053] As described above, the inner lid 30 has the cutout portion 36, the filter 60 has the protrusion 67, and the cutout portion 36 of the inner lid 30 engages with the protrusion 67 of the filter 60, thereby allowing the inner lid 30 to maintain the open state of the filter 60. Therefore, a simple configuration can be achieved to maintain the open state of the filter 60. Alternatively, instead of this configuration, the inner lid 30 may have a convex portion, and the filter 60 may have a notch portion, and the notch portion of the filter 60 may be engaged with the convex portion of the inner lid 30, thereby allowing the inner lid 30 to maintain the open state of the filter 60. Also, the inner lid 30 and the filter 60 may be engaged with each other at multiple points, allowing the inner lid 30 to maintain the open state of the filter 60.

[0054] As described above, the cutout 36 is configured to cut out the left side surface of the left bracket 34, and the upper surface of the cutout 36 is configured as a surface that slopes upward as it moves outward to the left. Therefore, when the open state of the filter 60 is released, the protrusion 67 of the filter 60 can be smoothly and gradually dropped out of the cutout 36 of the inner lid 30.

[0055] As described above, in the operation of maintaining the open state of the filter 60, the left arm 63 of the filter 60 elastically deforms while the convex portion 67 of the filter 60 fits into the cutout portion 36 of the inner lid 30. In addition, in the operation of releasing the open state of the filter 60, the left arm 63 of the filter 60 elastically deforms while the convex portion 67 of the filter 60 gradually falls out of the cutout portion 36 of the inner lid 30. Therefore, a configuration for maintaining the open state of the filter 60 or a configuration for releasing the open state of the filter 60 can be achieved with a simple configuration.

[0056] Note that control unit 17 may be configured to start the operation of pressurizing and cooking ingredients after pressure operation unit 23 is pressed at least once while lid 20 is closing opening 11 of main body 10. In this case, control unit 17 is configured to be able to receive information that it has detected that lid 20 has closed opening 11 of main body 10, and information that pressure operation unit 23 has been pressed. This configuration more reliably prevents cooking from being performed when pressure adjustment valve 41 and safety valve 42 are not covered by filter 60. [Explanation of symbols]

[0057] 1 pressure cooker 10 Main Unit 11 Opening 12 Inner pot 20 Lid 22 Steam vent 23 Pressure control unit 30 Inner lid 31 Exhaust vent 32 Exhaust vent 33 Exhaust vent 40 Pressure Regulating Unit 41 Pressure Regulating Valve 42 Safety valve 50 Pressure Valve 51 Valve body 60 filters 67 Convex

Claims

1. A pressure cooker comprising a main body having an opening and accommodating an inner pot, and a lid configured to be able to open and close the opening of the main body, wherein ingredients are pressurized and heated in the space inside the inner pot to cook them, The lid body is a pressure regulating valve for adjusting the pressure in the space inside the inner pot; a pressure valve that, when opened, connects the inner space of the inner pot with the outside and, when closed, makes the inner space of the inner pot airtight; a pressure operating unit that is operated by a user to open or close the pressure valve; A filter that covers the pressure regulating valve and prevents the ingredients in the inner space of the inner pot from entering the pressure regulating valve; Equipped with The filter is configured to be movable between a closed state in which the filter covers the pressure regulating valve and an open state in which the filter does not cover the pressure regulating valve, and moves from the open state to the closed state when the pressure operating unit is operated by a user to open or close the pressure valve. Pressure cooker.

2. The lid body includes an inner lid that closes the opening of the inner pot so that the space inside the inner pot is airtight when the lid body closes the opening of the main body, The filter is rotatably provided in the inner pot, When the pressure operation unit is pressed by a user, the pressure valve moves to open and presses the filter in an open state, The filter is pressed by the pressure valve to rotate from an open state to a closed state.

2. The pressure cooker of claim 1.

3. The inner lid is configured to be able to hold the filter in an open state, When the filter is pressed by the pressure valve, the inner lid releases the filter from its open state, and the filter rotates from its open state to its closed state.

3. The pressure cooker of claim 2.

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