JP2012115487A - Pressure cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to easily carry out the fixing and releasing of a lid body because a rotary table rotates forward or rearward by a motion conversion mechanism by reciprocatingly oscillating an operation member and a pair of moving members move in different directions in the radial direction of the lid body by the slide fitting of a pair of opposing slide groove parts with generally crescent moon groove shape and guide pins by the forward and rearward rotation of the rotary table.SOLUTION: The operation mechanism 4 is constituted by attaching a cover member 7 to the lid body 2 and rotatably arranging the rotary table 5 in the center part of the lid body, by fixing a handle 6 to the cover member, by reciprocatingly oscillatably arranging the operation member 14 in the handle, and by arranging the motion conversion mechanism 15 forwardly and rearwardly rotating the rotary table by the reciprocatingly oscillating movement of the operation member.

Description

  The present invention relates to a pressure cooker such as a pressure cooker.

  Conventionally, as a pressure cooker of this type, a container body, a lid capable of closing the opening of the container body, and a pair of locking members movable in the radial direction for fixing the lid to the container body The thing of the structure provided with the operation mechanism which has is known.

Japanese Patent No. 4419149

  However, in the case of the conventional structure, there is a disadvantage that the moving structure of the operating mechanism having a pair of locking members that can move in the radial direction for fixing the lid to the container body may be complicated. .

  The present invention aims to solve these disadvantages. Among the present inventions, the invention according to claim 1 is a container main body, a lid capable of closing the opening of the container main body, And an operating mechanism having a pair of locking members movable in the radial direction of the lid for fixing the lid to the container body. As the operating mechanism, the cover member is attached to the lid and the lid A rotating disk is rotatably disposed at the center of the body, a handle is fixed to the cover member, and an operating member is reciprocally swingable on the handle, and the rotating disk is moved by the reciprocating rocking motion of the operating member. A motion conversion mechanism for forward and reverse rotation is provided, and a pair of opposed substantially crescent-shaped slides that gradually increase in diameter from the inside to the outside in the radial direction at the rotation center of the rotation disk on the surface of the rotation disk. A groove is provided, and a bottom plate and left and right rising plates are provided on the upper surface of the lid. A guide member having a U-shaped cross section is provided, and a pair of movable members having a U-shaped cross section including a bottom plate and left and right rising plates are provided on the guide member so as to be movable in different directions in the radial direction of the lid, Each of the moving members is provided with a guide pin that can be slidably fitted in each of the opposed pair of substantially crescent-shaped slide grooves, and the pair of locking members are fixed to the outer ends of the pair of moving members. And a safety member which is provided on the lid body and which can be moved up and down by a change in the internal pressure of the container body and on the moving member, and is capable of preventing the movement member from moving outward at the raised position of the safety member. There is provided a pressure cooker characterized in that a safety mechanism including a stop portion is provided, and a steam vent valve having an adjustment weight for adjusting the pressure in the container body is provided on the lid body.

  According to a second aspect of the present invention, as the motion converting mechanism, a horizontal axis is rotatably provided on the handle, a base portion of the operation member is fixed to the horizontal axis, the horizontal axis, the rotating disk, A gear train is interposed between them, and the horizontal axis is rotated forward and backward by a reciprocating rocking motion around the base of the operation member, and the rotating disk is rotated forward and backward via the gear train. Further, the invention according to claim 3 is provided with an opening / closing valve that opens when the excessive pressure rises in the container body in the closed state in the safety member to release the steam. It is characterized by.

  As described above, according to the present invention, the container body, the lid body capable of closing the opening of the container body, and the radial direction of the lid body for fixing the lid body to the container body. And an operating mechanism having a pair of movable locking members. As the operating mechanism, a cover member is attached to the lid body, and a rotating disk is rotatably disposed at the center of the lid body. A handle is fixed to the member, an operation member is provided on the handle so as to be reciprocally swingable, and a motion conversion mechanism is provided for rotating the rotating disk forward and backward by reciprocating rocking motion of the operating member. A pair of opposed, substantially crescent-shaped slide grooves that gradually increase in diameter from the inside to the outside in the radial direction are provided, and the upper surface of the lid body has a cross-section of a bottom plate and left and right standing plates. The guide member is provided with a bottom plate and left and right A pair of movable members each having a U-shaped cross section made of a plate are provided so as to be movable in different directions in the radial direction of the lid, and are slid into the respective pair of opposed crescent-shaped slide grooves on each of the pair of movable members. Since a guide pin that can be fitted is provided and the pair of locking members are fixed to the outer ends of the pair of moving members, the rotary disk is moved by the motion conversion mechanism by reciprocally swinging the operation member. Are rotated in forward and reverse directions, and a pair of opposed substantially crescent-shaped slide grooves extending radially inwardly from the inside in the radial direction provided on the surface of the turntable by the forward and reverse rotation of the turntable, and The pair of moving members move in different directions in the radial direction of the lid body by slide fitting with the guide pins and the guide member, and the lid body is fixed to the container body at a fixed position where the pair of locking members are located inside. A pair of The lid body is released from the container body at the release position where the stop member is located outside, the lid body can be fixed and released easily, and the structure of the operation mechanism can be simplified, and A safety member which is provided on the lid body and can be moved up and down by a change in internal pressure of the container body and a locking portion which is provided on the moving member and which can prevent outward movement of the moving member at the raised position of the safety member. Since the safety mechanism is provided, the safety member can be raised at the fixed position where the pair of locking members are located inside, and the safety member rises due to the pressure increase in the container body, while the pressure in the container body The safety member descends when the pressure drops, and at this time, while the pressure in the container body is still high, the handle is rotated in the reverse direction to move the moving member outward from the fixed position to the release position. Then , The outward movement of the moving member is prevented by the locking portion, the unexpected lid can be prevented from being removed, and a steam vent valve having an adjustment weight for adjusting the pressure in the container body is provided on the lid. Since it is provided, the pressure in the container body can be adjusted, and safety can be improved.

  According to a second aspect of the present invention, as the motion conversion mechanism, a horizontal axis is rotatably provided on the handle, and a base portion of the operation member is fixed to the horizontal axis. A gear train is interposed between the rotating disk, the horizontal axis is rotated forward and backward by a reciprocating rocking motion around the base of the operating member, and the rotating disk is rotated forward and backward via the gear train. Thus, the horizontal axis rotates forward and backward by the reciprocating swinging motion of the operating member, and the rotating disk rotates forward and backward via the gear train, so that the lid can be fixed and released easily and operated. The structure of the mechanism can be simplified, and in the invention according to claim 3, the on-off valve that opens when the excessive pressure rises in the container body in the closed state in the safety member opens to release steam. In addition to the pressure adjustment function of the steam release valve, the open / close valve is used when excessive pressure rises. Open can be enhanced even more secure by releasing the steam.

1 is an overall perspective view of an embodiment of the present invention. It is sectional drawing of the embodiment of this invention. It is a partial plane sectional view of the example of an embodiment of the invention. It is a partial expanded sectional view of the example of an embodiment of the invention. It is a partial expanded side sectional view of an example of an embodiment of the invention. It is a fragmentary sectional view of the example of an embodiment of the invention. It is a fragmentary sectional view of the example of an embodiment of the invention. It is sectional drawing of the embodiment of this invention. It is a partial plane sectional view of the example of an embodiment of the invention.

  FIGS. 1 to 9 show an embodiment of the present invention. Reference numeral 1 denotes a container body, as shown in FIGS. 1 and 5, a peripheral edge 1a having a U-shaped cross section is formed around the periphery of the opening. A pair of opposed handle portions 1b and 1b are provided in a protruding manner.

  1 and 2, a lid 2 is formed so as to be able to close the opening of the container body 1, a drooping portion 2 a is formed at the peripheral edge, and the container body 1 is disposed inside the drooping portion 2 a. A packing 2b that can be pressed against the peripheral edge 1a is disposed.

  3 and 3 are a pair of locking members. In this case, as shown in FIG. 2, each of the locking members 3 and 3 has an arc shape that is approximately a quarter of the peripheral edge 1a of the container body 1, The peripheral part 1a of the container body 1 and the hanging part 2a of the lid 2 are formed so as to be able to be held.

  Reference numeral 4 denotes an operating mechanism. In this case, as shown in FIGS. 2, 3, 4, and 5, a rotating disk 5 is rotatably installed at the center of the lid 2 by bolts 5a and nut plates 5b. At the same time, a cover member 7 made of synthetic resin is attached to the lid 2 with bolts 7a and 7a, a handle 6 is fixed to the cover member 7 with bolts 6a, and an operation member 14 can be reciprocally swung to the handle 6 within a range of 180 degrees. And a motion conversion mechanism 15 for rotating the rotating disk 5 forward and backward by a reciprocating swinging operation of the operation member 14 is provided. In this case, as the motion conversion mechanism 15, a horizontal shaft 15 a is rotatably disposed horizontally on the handle 6. The operation member 14 is formed in a substantially semicircular arc shape, both end bases of the semicircular arc operation member 14 are fixed to the horizontal shaft 15a, and the stopper portion N for restricting the reciprocating swing limit of the operation member 14 is formed in the handle 6. And the horizontal axis 15a 180 degree reciprocation of the operation member 14 centering on the axis of the horizontal shaft 15a in which bevel gear-like gear trains 15b and 15c are interposed between the shaft portion 5d of the panel 5 and both bases of the operation member 14 are fixed. The horizontal shaft 15a is rotated forward and backward by a swinging motion so that the rotating disk 5 is rotated forward and backward via the gear trains 15b and 15c, and the surface of the rotating disk 5 is separated from the rotation center of the rotating disk 5 respectively. A pair of opposed substantially crescent-shaped slide groove portions 5c and 5c that gradually increase in diameter from the inside to the outside in the radial direction are provided, and a cover member 7 made of synthetic resin is attached to the lid 2 by bolts 7a and 7a. A guide member 8 having a U-shaped cross section consisting of a bottom plate 8a and left and right upright plates 8b and 8b is fixed to the upper surface of the lid 2, and the guide member 8 is fixed to the bottom plate 9a and the left and right upright plates 9b and 9b. The pair of moving members 9, 9 having a U-shaped cross section A pair of moving members 9 and 9 are provided with relief holes 9d and 9d so as to be movable in different directions in the radial direction, and each of the pair of moving members 9 and 9 has the above-mentioned pair of substantially crescent-shaped grooves. Guide pins 10 and 10 that can be slidably fitted in the slide grooves 5c and 5c are planted, and the pair of locking members 3 and 3 are welded and fixed to the outer ends of the pair of moving members 9 and 9. It is composed.

  Accordingly, as shown in FIG. 2, FIG. 3 or FIG. 8, FIG. 9, when the operation member 14 is reciprocally swung, the motion converting mechanism 15 causes the rotating disk 5 to rotate forward and backward. The pair of moving members 9 and 9 are moved in different directions in the radial direction of the lid body 2 by the slide fitting of the slide groove portions 5c and 5c and the guide pins 10 and 10 by the forward and reverse rotation of 5 and the guide member 8, As shown in FIGS. 5 and 11, the lid body 2 is fixed to the container body at a fixed position K where the pair of locking members 3 and 3 are located inside. As shown in FIGS. The lid body 2 is released from the container body at the release position F where 3 is located outside.

  A safety mechanism 11 is provided on the lid 2 as shown in FIGS. 5 and 9 and can be moved up and down by a change in the internal pressure of the container body 1 and the one moving member 9. 9 and 11, as shown by the solid line in FIG. 9 and FIG. 11, the locking member 13 is configured to prevent the moving member 9 from moving outward at the raised position of the safety member 12. In this case, the lid 2 is provided with the cylinder shaft 11a. , And the safety member 12 is inserted into the cylindrical shaft 11a in a suspended manner so as to be movable up and down. On the other hand, the locking portion 13 has a large diameter portion 13a through which the safety member 12 can be inserted and the safety member 12 cannot be inserted. A small hole 13 b is formed in a keyhole shape, and a through hole 7 c is formed in the cover member 7.

  2 and 7, the safety member 12 can be raised through the large diameter portion 13a at the fixed position K where the pair of locking members 3 and 3 are located on the inner side. On the other hand, as shown in the imaginary line position in FIG. 7, the safety member 12 is lowered when the pressure in the container main body 1 drops, and the safety member 12 is still in the container main body 1. When the operation member 14 is swung in the reverse direction to move the moving member 9 outward from the fixed position K to the release position F, the safety member 12 in the raised position is shown in FIG. The edge of the small slot 13b comes into contact with the peripheral surface of the, and thus the outward movement of the moving member 9 is prevented, and the unexpected removal of the lid 2 is prevented.

  In this case, as shown in FIG. 7, the safety member 12 is formed in a cylindrical shape, and an on-off valve 12 a and a return spring 12 b are provided in the safety member 12, and a cylindrical nut 12 c is screwed to the lower portion of the safety member 12 to open and close the safety member 12. An upper shaft 12d having a split groove and a lower shaft 12e having a narrowing portion for passage of steam project from the valve 12a, and a valve seat packing 12f is interposed between the cylindrical nut 12c and the on-off valve 12a. An opening cap 12g is fixed to the upper portion of 12 and a return spring 12b is interposed between the opening cap 12g and the on-off valve 12a. A packing 12h is fitted on the outer peripheral surface of the safety member 12, and a relief hole is formed in the safety member 12. 12i is formed, and when the inside of the container body 1 rises to an excessive pressure, steam enters from between the inner hole of the cylindrical nut 12c and the narrow passage portion of the lower shaft 12e for passing steam, On-off valve 12a and valve seat pad 12f rises and the valve seat portion of the on-off valve 12a opens, and steam is discharged from the inner hole of the on-off valve 12a and the safety member 12 to the outside through the escape hole 12i through the split groove of the upper shaft 12d. Become.

  Reference numeral 16 denotes a steam vent valve, as shown in FIG. 6, which fixes the nozzle 16a to the lid 2, forms a relief hole 9c in the other moving member 9, and forms a through hole 7d in the cover member 7, and An adjustment weight 16b for closing the nozzle hole 16d is provided at the upper part of the nozzle 16a, and a strainer 16c is arranged at the lower part.

  Since this embodiment has the above-described configuration, the rotary disk 5 is moved forward and backward by the motion conversion mechanism 15 by reciprocally swinging the operation member 14 about the axis of the horizontal shaft 15a to which the base of the operation member 14 is fixed. A pair of opposed crescent-shaped slide grooves that gradually reverse in diameter from the inside to the outside in the radial direction formed on the surface of the turntable 5 by forward and reverse rotation of the turntable 5. 5c and 5c and the guide pins 10 and 10 and the guide member 8 cause the pair of moving members 9 and 9 to move in different directions in the radial direction of the lid 2, as shown in FIGS. The lid 2 is fixed to the container body at a fixed position K where the pair of locking members 3 and 3 are located on the inside, and the release position where the pair of locking members 3 and 3 are located on the outside as shown in FIGS. At F, the lid 2 is released from the container body 1 Therefore, the lid 2 can be fixed and released easily, the structure of the operation mechanism 4 can be simplified, and the lid 2 is provided with a change in the internal pressure of the container body 1. A safety mechanism 11 is provided which includes a safety member 12 that can be moved up and down and a locking portion 13 that is provided on the moving members 9 and 9 and that can prevent the moving member 9 from moving outward when the safety member 12 is raised. As shown in FIGS. 2 and 7, the safety member 12 can rise through the large-diameter portion 13 a at the fixed position K where the pair of locking members 3, 3 is located inside, and the pressure in the container body 1 can be increased. The safety member 12 rises due to the rise, and on the other hand, as shown in the imaginary line position in FIG. 7, when the pressure in the container body 1 drops, the safety member 12 will drop. At this time, the pressure in the container body 1 still remains. The operating member 14 is swung in a high state. When the moving member 9 is moved outward from the fixed position K to the releasing position F, the edge of the small slot 13b comes into contact with the peripheral surface of the safety member 12 in the raised position as shown in FIG. The outward movement of the moving member 9 is prevented, the outward movement of the moving member 9 is blocked by the locking portion 13, the unexpected removal of the lid 2 can be prevented, and the safety can be improved. Since the steam release valve 16 having the adjustment weight 16b for adjusting the pressure in the container main body 1 is provided on the lid 2, the pressure in the container main body 1 can be adjusted and safety can be improved.

  In this case, as the motion converting mechanism 15, a horizontal shaft 15 a is rotatably disposed on the handle 6, a base portion of the operation member 14 is fixed to the horizontal shaft 15 a, and a gear is interposed between the horizontal shaft 15 a and the rotating disk 5. The horizontal shaft 15a is rotated forward and backward by the reciprocating swinging motion of the operation member 14 about the axis of the horizontal shaft 15a, which is interposed between the rows 15b and 15c and the base of the operation member 14 is fixed, and the gear trains 15b and 15c are rotated. Since the rotary disk 5 is provided so as to rotate forward and backward, the horizontal shaft 15a rotates forward and backward by the reciprocating swinging motion of the operation member 14, and the rotary disk 5 rotates forward and backward via the gear trains 15b and 15c. In addition, the lid 2 can be fixed and released easily, and the structure of the operation mechanism 4 can be simplified. In this case, the safety member 12 is excessively large in the container body 1 in the closed state. Open to release steam when pressure rises Since formed by providing a valve 12a, it is possible to further enhance a safety by vapors to escape off valve 12a is opened at the time of an excessive pressure rise in addition to the pressure regulating action of the steam vent valve 16.

  The present invention is not limited to the above-described embodiment. For example, as the motion conversion mechanism 15, the operation member 14 rotates the rotating disk 5 forward and backward by a reciprocating swinging operation in a range of 180 degrees. The pair of moving members 9 and 9 are configured to move in different directions in the radial direction of the lid body 2, but the operation member 14 is moved by a reciprocating swinging operation in a range other than 180 degrees, for example, 90 degrees. The rotating disk 5 can be configured to rotate forward and reverse, and a link structure other than a gear structure can be employed as the motion conversion mechanism 15, and the container body 1, the lid body 2, and the locking member. 3 and 3, the structure and form of the operation mechanism 4, the rotating disk 5, the handle 6, the operation member 14, and the like are appropriately changed.

  As described above, the intended purpose can be sufficiently achieved.

DESCRIPTION OF SYMBOLS 1 Container main body 2 Cover body 3 Locking member 4 Operation mechanism 5 Turntable 5c Slide groove part 6 Handle 7 Cover member 8 Guide member 8a Bottom plate 8b Standing plate 9 Moving member 9a Bottom plate 9b Standing plate 10 Guide pin 11 Safety mechanism 12 Safety Member 12a On-off valve 13 Locking portion 14 Operation member 15 Motion conversion mechanism 15a Horizontal shaft 15b Gear train 15c Gear train 16 Steam vent valve 16b Adjusting weight

Claims (3)

  A container body, a lid capable of closing the opening of the container body, and an operation mechanism having a pair of locking members movable in the radial direction of the lid for fixing the lid to the container body. As the operation mechanism, a cover member is attached to the lid body, a rotating disk is rotatably disposed at the center of the lid body, a handle is fixed to the cover member, and the operation member is reciprocated to the handle member. A motion conversion mechanism is provided that can be swung freely and that rotates the rotating disk forward and backward by the reciprocating rocking motion of the operating member, and the surface of the rotating disk is radially inward with respect to the rotation center of the rotating disk. A pair of opposed substantially crescent-shaped slide grooves that gradually increase in diameter from the outside to the outside are provided, and a guide member having a U-shaped cross section made up of a bottom plate and left and right upright plates is provided on the upper surface of the lid, A pair of U-shaped cross sections consisting of a bottom plate and left and right upright plates The material is provided to be movable in different directions in the radial direction of the lid, and each of the pair of moving members is provided with a guide pin that can be slidably fitted in each of the opposed pair of substantially crescent-shaped slide grooves. The safety member and the moving member fixed to the outer end portions of the pair of moving members, and provided on the lid body and movable up and down by a change in the internal pressure of the container body. Provided is a safety mechanism comprising a locking portion that can prevent the moving member from moving outward at the raised position of the safety member, and further the steam having an adjustment weight for adjusting the pressure in the container body on the lid body A pressure cooker comprising a vent valve.   As the motion conversion mechanism, a horizontal axis is rotatably disposed on the handle, the base of the operation member is fixed to the horizontal axis, and a gear train is interposed between the horizontal axis and the rotating disk, 2. The rotating shaft according to claim 1, wherein the horizontal axis is rotated forward and backward by a reciprocating rocking motion around the base of the operating member, and the rotating disk is rotated forward and backward via the gear train. The described pressure cooker.   3. The pressure cooker according to claim 1 or 2, wherein an opening / closing valve is provided in the safety member to open and escape steam when an excessive pressure rise in the container body in the closed state.