JP3125615U - Pressure cooker lid lock device - Google Patents

Abstract

An object of the present invention is to provide a one-touch type simple and safe lock mechanism for locking a pressure cooker lid.
An opening 3a of a main body 3 is formed by integrating a metal frame 5 on a surface 4a of a lid 4 which can be opened and closed in a sealed manner through a packing 4b, and is provided at the center thereof. The first gear 7 on the rotation shaft 6a of the lever handle 6 is transmitted to the second gear 9 provided at right angles to the lower gear 9 so that the second gear 9 is transmitted to the both ends of the frame 5. The metal plate-like lock levers 10 that move in and out toward the outside in pairs are connected to the second gear 9 via the link body 11 and loosely connected by the support shaft 8, so that the lever handle 6 Both the lock levers 10 are moved inward by the lifting operation, and are moved outward by the push-down operation, so that the end 10a of the lock lever 10 is attached to the inner side surface of the handle 12 of the main body 3. The main body 3 opening 3a can be inserted into and removed from the provided lock hole 13. The lid 4 to seal to allow the lock and unlock.
[Selection] Figure 1

Description

  The present invention relates to a pressure cooker lid locking device used in general households.

  A pressure cooker generally known as this type of conventional technology is such that a lid is put on the main body, and the pressure inside the main body rises to a high level during cooking, and the lid does not move even if pressure is applied to the lid. A bayonet that depends on the left and right rotation with the engagement of the concaves and convexes provided on both sides, covering the main body with a lid that is sealed via packing so that steam does not blow out from the gap between the main body and the lid Depending on the method, the lid is sealed to the main body. (Not shown)

  These bayonet systems have some problems. In other words, when the cover is put on the main body and the lock is operated, the main body will rotate around in the same direction as the cover unless you hold the main body firmly and rotate the cover to rotate it clockwise. The problem of causing an accident or the like remains unless the packing is frequently maintained by repeating the sliding while the packing mounted on the lid body is always subjected to the pressing pressure during the rotation.

  In order to solve these various disadvantages, there is known a lid locking device for Japanese Patent Application No. 2006-1557025 pressure cooking vessel (pressure cooker) as shown in the front sectional view of FIG. It is a pressure pan A equipped with a safety valve 1 and a pressure regulator 2 used at home, and a metal is applied to the surface 4a of the lid 4 that opens and closes in a sealed manner through the packing 3b at the opening 3a of the main body 3. The handle frames 6b, which are made by integrating the manufactured frames 5 and are rotated synchronously with the rotation operation of the push-down a of the lever handle 6 provided at the center of the frames 5 and the lifting b, are provided. The link body 11 provided in a pair is loosely connected to the frame 5 and the end portion 10a of the lock lever 10 that slides on the surface of the frame 5 and the U-shaped bent portion 10c are formed on the opening 3a of the main body 3. The edge turn-up portion 3b can be clamped, that is, By making the lid 4 lockable and unlockable to the main body 3 by operating the bar handle 6, the problem with the bayonet system structure depending on the locking and unlocking of the lid 4 by rotation is achieved. The solved invention is shown.

  That is, the lock a and the unlock operation can be performed without turning the lid 4, so that the stable operation in which the turning power is not applied to the main body 3 can be locked by pushing down the lever handle 6, and the lid 4 after cooking. Unlocking (unlocking) is performed only by lifting b of the lever handle 6, and furthermore, the addition applied to the packing 4b is only repeated pressing force to prevent wear.

  However, in the case of the above-described prior art, the handle disc is used to increase the compression stroke of both the main body and the lid through the packing of the main body and the lid by increasing the stroke of the U-shaped bent portion of the lock lever in the locking operation. The distance between the pivot shaft and the support shaft of the link body must be widened greatly, and unless the diameter of the handle disc is significantly increased, the operating force applied to the lever handle cannot be reduced. The plate must be enlarged, which inevitably increases the thickness of the lid and impairs the aesthetics of the pressure cooker, and also causes problems such as difficulty in handling the lid.

  Furthermore, in the case of a large pressure cooker, it is desirable to equip the outer periphery of the lid with four lock levers evenly on the outer periphery of the lid. However, since the handle disc is a one-way insertion / removal mechanism, it cannot be locked in four places. There is a problem. In other words, a pressure lock lid lock device that can apply a strong compressive force to the cushioning packing provided in the gap between the main body and the lid body with a weak operating force with a lever handle, and has a thin finish and an excellent lid body. There was a strong demand.

  In order to solve this problem, the present invention proposes a main body 3 in a pressure cooker A equipped with a safety valve 1 and a pressure regulator 2 used in a general home, as described in FIG. Of the lever handle 6 provided at the center of the metal frame 5 integrally formed on the surface 4a of the lid 4 which can be opened and closed in a sealed manner through the packing 4b. The first gear 7 on the rotating shaft 6a transmits to the second gear 9 provided at right angles to the speed-reducing mesh, and the second gear 9 is connected to both ends of the frame 5 in pairs. A metal plate-like lock lever 10 that moves in and out moves through a link body 11 to the second gear 9 and is loosely connected to the support shaft 8 so that the lever handle 6 is lifted. Both lock levers 10 move inward, and push down a to move outward. As a result, the end portion 10a of the lock lever 10 is put into and out of the lock hole 13 provided in the side surface inside the handle 12 of the main body 3, thereby locking and unlocking the lid 4 sealed in the opening 3a of the main body 3. The frame 5 equipped with these is encased in a knob 14 with a cover made of resin covering the frame 5 and fixed to the surface 4 a of the lid 4.

  Further, as described in FIG. 2, the idea of the second term is based on the lifting operation of the lever handle 6 described above, and at least a pair of lock levers 10 of the bent portion 10c of the end portion 10a. The U-shaped bent portion 10c moves outward by the action of the link body 11 connected to the second gear 9, and moves inward by the push-down a operation. The lid 4 can be unlocked and locked by allowing the edge turn-up portions 3b provided on the entire periphery to be freely clamped.

  Next, as described in FIG. 3 and FIG. 4, the lock lever 10 that moves on the surface of the frame 5 is a lid 4 closed body (lock) and opens on the surface of the lock lever 10 as described in FIGS. The cylindrical lever stopper 15 is formed by penetrating through the stopper hole 10b, the frame hole 15a opening to the frame 5 and the knob hole 14a and protruding freely. b Mounted on the lid 4 so that it can sink freely, and the lever stopper 15 falls under its own weight from the stopper hole 10b on the surface of the lock lever 10 and moves away only at a safe and low vapor pressure inside the main body 3. -Is configured to be openable to unlock.

  Since the present invention operates as described above, the following effects can be obtained. In other words, as described in claim 1, the number of teeth of the first gear provided on the rotating shaft of the lever handle is set to a reduction meshing that is several less than the number of teeth of the second gear meshing perpendicularly to the first gear. With a weak lever handle turning force, the power can be increased several times, a strong compressive force can be added to the cushioning packing interposed between the main body and the lid when locked, and the lid thickness can be reduced. Without expanding, it is possible to provide a pressure cooker lid locking device that can determine the operating angle and operating force of the lever handle by setting an arbitrary reduction ratio of each gear.

  And the lock with the lock lever provided on the lid is inserted into the lock hole that opens on the inner side of the handle of the main body. It is possible to provide a pressure cooker lid locking device that can make the final closing of the pot the strongest.

  The lever handle can be operated with one-touch operation when the lever handle position is obvious and the lever is popping out of the knob. Can provide a pressure cooker lid lock device.

  Further, the invention of claim 2 can provide a pressure cooker lid locking device that can equally apply a strong compressive force to the packing that can be equipped with a lock lever in a large-sized high pressure cooker on the outer periphery of the lid.

  Next, in the invention of claim 3, the lever-shaped lever stopper mounted on the lid body responds to an increase in vapor pressure inside the main body when the lever handle is locked down, and the lever stopper rises. Thus, since the lock hole is inserted through the stopper hole of the lock lever, a lid device for locking the pressure cooker provided with a safety device that cannot be intentionally released can be provided.

  Hereinafter, the present invention will be described in more detail based on the embodiments shown in the drawings. That is, FIG. 1 is a perspective view of the whole of the first embodiment of the present invention with a part (the knob 14) omitted, and a cooking pressure cooker A used in a general household is a safety valve 1 and a pressure regulator 2. Are mounted on a part of the surface of the metal lid 4 and perform their respective functions. These lids 1 have a U-shaped opening 3a of the main body 3 with a heat-resistant cushioning property, and the entire opening 3a. The packing 4b formed by bonding is joined around the circumference, and is sandwiched between the two and subjected to compression, and the lid 4 is put on the main body 3 in a configuration in which both can be opened and closed.

  A thin metal frame 5 is integrally fixed to the flat surface 4a of the lid 4 by welding or rivets, etc., but at a predetermined angle provided at the center of these frames 5. The first gear 7 on the rotation shaft 6a of the lever handle 6 which is easy to grip and moves up and down rotates and transmits to the second gear 9 which is provided perpendicularly to the second gear 9 and transmits the rotation, and the lever handle 6 is pushed down. a and the upward rotation (vertical rotation) are transmitted to the second gear 9 which is rotatable on the surface of the frame 5, but the reduction ratio of each of these gears is not specified, and the second gear 9 is not specified. The gear 9 is provided with a plate-like link body 11 consisting of a pair connected on the surface via a support shaft 8, and further, these are loosely connected together by the support shaft 8 to move in and out and slide. The lock lever 10 is connected without detaching from the frame 5, and the lever Rotation of a predetermined angle of bundles 6, equipped with a lock lever -10 to decelerate the slide converted moved toward the outside and inside of the lid 4.

  As described above, when the lever handle 6 is lifted, both lock levers 10 are slid inward at the link motion with the link body 11, and are slid outward with the push-down a operation. Then, the end portions 10a of both the lock levers 10 are put in and out of the lock holes 13 opened on the inner side surface of the handle 12 integrated with the main body 3 to engage with the opening portions 3a of the main body 3 so as to be covered and sealed. Although the body 4 can be locked and unlocked, a heat-resistant and U-shaped packing 4b formed by joining the outer periphery of the inner surface of the lid 4 is compressed and sandwiched between the joints of these two bodies. It is configured to withstand the high internal vapor pressure and to prevent vapor leakage from both joints.

  The frame 5 equipped with these is integrally fixed to the surface 4 a of the lid 4, but the lever handle 6 arranged at the center of the lid 4 grips the lid 4 to open and close the knob 14 ( A knob 14 made of a synthetic resin and covered with a cover, which is configured to be housed in a concave space in a part of the handle 5, has a frame 5 in a blinded form, and a lever handle 6. The end portions 10a of both lock levers 10 are configured to be integrally fixed to the lid body 4 in an exposed form.

  Next, FIG. 2 is a plan view of an essential part in a partial cross section based on the second embodiment of the present invention, and the end of the lock lever 10 according to the lifting operation of the lever handle 6 at a predetermined angle. The U-shaped bent portions 10c of the portion 10a are at least paired, and the U-shaped bent portions 10c of both sides are moved outward by the action of the link body 11 that is loosely connected via the support shaft 8 to the second gear 9 surface. The main body 3 and the lid body 4 are slidable toward each other, and the fold-back portion 3b provided on the entire circumference of the main body 3 opening 3a is formed by sliding them inward by the push-down a operation. The lid 4 can be unlocked and locked by allowing it to be freely clamped by the U-shaped bending portion 10c that slides. It can be easily applied to large-sized high-pressure pans etc. Without)

  Next, FIG. 3 is a plan view in a partial cross section based on the third embodiment of the present invention, and an end portion 10a of the lock lever 10 can be obtained by lifting the lever handle 6 at a predetermined angle. Is slid inwardly by the action of a link body 11 loosely connected to the surface of the second gear 9 via a support shaft 8 so that the main body 3 and the lid body 4 can be separated. The lid 4 is equipped with a lever stopper 15 which is coaxially connected to the frame hole 15a opened in the frame 5 directly below and is movable up and down. The lock lever 10 pushes the lever handle 6 down. As long as there is no sliding movement in the direction of arrow a by the operation, the lever stopper 15 will be held down by holding its own weight.

  As shown in FIG. 4, the lock lever 10 described above is inserted into the lock hole 13 opened on the inner side surface of the handle 12 when the lever handle 6 is slid toward the outside a by the operation of the lever handle 6. The body 4 is locked to the main body 3 and the lid 4 cannot be removed, and a lever stopper 15 penetrating the frame hole 15a of the frame 5 just below the lock lever 10 floats upward to lift the lock lever 10 By opening the stopper hole 10b for penetrating, and further penetrating the knob body hole 14a that opens to the knob body 14, the vapor pressure acts on the main body 3 to receive a predetermined pressure, and through each hole, By preventing the lock lever 10 from sliding, the lever handle 6 is held down so long as the pressure is not reduced in the main body 3, and the safety device is provided.

    It is a whole perspective view by a part omission in the first example concerning the present invention.     It is a front view in the section of a principal part omitted in the second example concerning the present invention.     It is a front view in a partially omitted cross section in a third embodiment according to the present invention.     It is a front view in a partially omitted cross section in a third embodiment according to the present invention.     It is a front view in a section in the prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Safety valve 2 Pressure adjustment tool 3 Main body 3a Opening part 3b Edge folding | returning part 4 Lid 4a Surface 4b Packing 5 Frame 6 Lever handle 6a Rotating shaft 6b Handle disk 7 1st gear 8 Support shaft 9 2nd gear 10 Lock lever
11 Link body 12 Handle 13 Lock hole 14 Knob body 15 Lever stopper
15a Frame hole

Claims (3)

  In a pressure cooker (A) equipped with a safety valve (1) and a pressure regulator (2) for use in a general household, the opening (3a) of the main body (3) is hermetically sealed via a packing (4b). A rotating shaft (6a) of a lever handle (6) provided at the center of a metal frame (5) integrated with a surface (4a) of a lid (4) that is opened and closed. The upper first gear (7) transmits the reduction meshing rotation to the second gear (9) provided perpendicularly to the second gear (9), and the second gear (9) is transmitted to both ends of the frame (5). A metal plate-like lock lever (10) moving in and out toward the outside in pairs is loosely connected to the second gear (9) via a link body (11) and supported by a support shaft (8). By the lifting operation of the lever handle (6), both lock levers (10) are moved inward and pushed down. By moving toward the outside, the end (10a) of the lock lever (10) is put in and out of the lock hole (13) provided on the inner side surface of the handle (12) of the main body (3). (3) The lid (4) for sealing the opening (3a) can be locked and unlocked, and the frame (5) equipped with these is a molded product provided on the lid (4). A pressure cooker lid locking device, characterized in that it is wrapped with a cover (14) with a cover covering the cover (5) and fixed to the surface (4a) of the lid (4).   According to the lifting operation of the lever handle (6) described above, at least a pair of lock levers (10) of the end (10a) and the bent portion (10c) are connected to the second gear (9). Both the U-shaped bent portions (10c) move outward by the action of the link body (11) that moves, and move inward by a push-down operation, so that the main body (3) opening (3a) 2. The pressure cooker lid locking device according to claim 1, wherein the lid (4) can be unlocked and locked by making the edge folding portion (3b) sandwichable.   The lock lever (10) that moves on the surface of the frame (5) is a lid (4), and a stopper hole (10b) that opens on the surface of the lock lever (10) and the frame. A cylindrical lever stopper (15), which penetrates and aligns with the frame hole (15a) and the knob body hole (14a) that can be protruded, floats at the degree of vapor pressure inside the main body (3) (b ) Mounted on the body (4) so that it can sink freely, and the lever stopper (15) can be moved from the stopper hole (10b) on the lock lever (10) side to the lower side (c) only at a safe low pressure inside the main body (3). 3. The pressure cooker lid locking device according to claim 1 or 2, wherein the lock lever can be unlocked and released by moving under its own weight.

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