JP3165329U - Pressure cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pressure cooking utensil capable of realizing a configuration for detecting pressure and activating a timer device simply and at low cost. SOLUTION: A lid body can be attached and detached at a detachable position P0, a decompression position P1, a low pressure position P2, an operation member 1 that can be operated at a high pressure position P3, and the inside of the container body are normal pressure, low pressure, and high pressure. The regulator 6 adjusts to either of the above, the timer device that counts the cooking time under pressure, the first start state that activates the timer device when the inside of the container body becomes low pressure, and the high pressure. It includes a second activation state that is activated at times, and a timer activation device 5 that is adjusted to. The operation member 1 includes a first adjustment operating unit that adjusts the activation state of the timer activation device 5, and a second adjustment operation unit that adjusts the state of the regulator 6. [Selection diagram] Fig. 2

Description

  The present invention relates to a pressure cooking utensil for cooking food under pressure, comprising a container body, a lid body detachably attached to the container body, and a lid handle attached to the lid body. .

  A pressure cooker is known as such a pressure cooker. The pressure cooker cooks under a predetermined pressure, but it is necessary to set a cooking time at a set pressure (low pressure or high pressure). Therefore, when the set pressure is reached, the timer device is activated and a function for counting down the set cooking time is installed.

  For example, in Patent Document 1, a pressure display push rod that moves up and down by the action of pressure inside the pressure cooker is provided, and a non-contact signal transmission device is provided between the push rod and the timer device. . This transmits a signal indicating the position of the push rod to the timer device, and is performed by a magnet (permanent magnet) and a Hall sensor. The hall sensor is arranged on the timer device and is configured such that the hall sensor responds when cooking starts or when the pressure reaches a predetermined level.

JP 2008-307375 A

  However, the above configuration transmits pressure information using a magnet or a hall sensor, and is expensive in cost. In addition, the low pressure and the high pressure need to be detected by distinguishing the magnitude of the pressure, and a structure that is as simple and inexpensive as possible is required.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a pressure cooker capable of realizing a configuration for detecting a pressure and activating a timer device at a simpler and lower cost than before. .

In order to solve the above problems, the pressure cooker according to the present invention is:
A pressure cooking utensil for cooking food under pressure, comprising a container body, a lid body detachably attached to the container body, and a lid handle portion attached to the lid body;
The lid handle is
At least an attaching / detaching position where the lid body can be attached / detached, a first pressure position enabling cooking under the first pressure, and a second enabling cooking under a second pressure higher than the first pressure. An operation member operable at a pressure position;
A regulator that is adjusted to a normal state, a first state, and a second state so that the interior of the container body is at least one of normal pressure, first pressure, and second pressure;
A timer device that counts cooking time under pressure;
It is adjusted to the 1st starting state which starts a timer device when the inside of a container main part becomes the 1st pressure, and the 2nd starting state which starts a timer device when the inside of a container body becomes the 2nd pressure A timer starting device,
The operating member is
A first adjustment operating unit for adjusting the activation state of the timer activation device;
A second adjustment operating part for adjusting the state of the regulator,
In the first pressure position, the timer adjustment device is adjusted to the first activation state by the first adjustment operation unit, and the regulator is adjusted to the first state by the second adjustment operation unit,
In the second pressure position, the timer adjustment device is adjusted to the second activation state by the first adjustment operation unit, and the regulator is adjusted to the second state by the second adjustment operation unit. Is.

  The operation and effect of the pressure cooking utensil having such a configuration will be described. This pressure cooker is composed of a container body and a lid body, and a lid handle is attached to the lid body. An operation member is provided in the lid handle, and the operation member is set to the first pressure position or the second pressure position in order to perform cooking under pressure. The regulator is configured to be adjusted by an operation member, and is adjusted so that the inside of the container body is at normal pressure (detachment position), first pressure (first pressure position), and second pressure (second pressure position). Is done. In addition, a timer activation device for activating the timer device is provided, and the timer activation device is adjusted by the operation member to be in the first activation state (first pressure position) and the second activation state (second pressure position). The

  Accordingly, when the operating member is operated and set to the first pressure position, the pressure inside the container body is set to the first pressure (low pressure), and when the first pressure is reached, the timer device is started by the timer starting device. Is done. Thereby, the count operation (for example, countdown) is started, and the cooking time under the first pressure can be set. When the operation member is operated and set to the second pressure position, the pressure inside the container body is set to the second pressure (high pressure), and when the second pressure is reached, the timer device is started by the timer starting device. Is done. Thereby, a count operation (for example, countdown) starts, and the cooking time under the second pressure can be set.

  Therefore, the timer activation device and the regulator can be adjusted to a desired state simply by operating the operation member, and the setting and detection of the first pressure and the second pressure can be handled according to the position where the operation member is operated. As described above, it is possible to provide a pressure cooking utensil capable of realizing a configuration for detecting the pressure and starting the timer device at a simpler and lower cost than the conventional one. The operation member may be set not only at the first pressure position and the second pressure position but also at a third pressure position, a pressure removal position, and the like.

In the present invention, the timer device includes a switch for starting the counting of cooking time,
The timer starter is
A timer input member movable between an initial position and an action position for operating the switch;
An urging member that urges the timer input member to an initial position,
In the first activation state, a first urging force by the urging member is applied to the timer input member, and in the second activation state, a second urging force greater than the first urging force is applied by the urging member. It is preferable that the adjustment by the first adjustment operation unit is performed so that it can be performed.

  According to this configuration, by moving the timer input member from the initial position to the operating position, the switch of the timer device can be operated and the timer operation can be started. A biasing force is applied to the timer input member, and when the pressure inside the container body increases, the timer input member is moved against the biasing force. When the first urging force is applied, the timer input member activates the timer device when the first pressure is reached, and when the second urging force is applied, the second pressure is greater than the first pressure. The timer input member activates the timer device when Thus, by changing the urging force of the urging member, the timer device can be operated corresponding to the low pressure and the high pressure.

  In the present invention, the biasing force adjusting member for adjusting the biasing force by the biasing member is provided, and the biasing force of the biasing member is changed by changing the position of the biasing force adjusting member by the first adjustment operating unit. It is preferable to be able to configure.

  Various mechanisms for adjusting the urging force are conceivable, but a mechanism for changing the urging force with a simple configuration is realized by providing an urging force adjusting member and making it possible to change the urging force by changing this position. be able to.

  In the present invention, the first adjustment actuating portion is formed by a cam surface, and the cam input surface depresses the actuated portion of the biasing force adjusting member to compress the spring as the biasing member, and the timer input member It is preferable that the urging force acting on the lens is increased.

  As a method of changing the position of the urging force adjusting member, it can be performed by a first adjusting operation portion formed by a cam surface on the operating member. By pushing down the actuated portion of the biasing force adjusting member with the cam surface, the spring can be compressed and the biasing force can be increased. Therefore, the urging force can be increased by using a general-purpose configuration of the cam surface and the spring, and the low pressure and high pressure settings can be easily changed.

  In the present invention, it is preferable that the cam surface is formed with a recess into which the operated portion is fitted at a position corresponding to the first pressure position and the second pressure position.

  By forming such a concave portion, the actuated portion can be positioned at a position corresponding to the first pressure position and the second pressure position, and a click feeling can be obtained when operating.

The regulator in the present invention is
A packing member that can be set to a state in which an escape hole for releasing the pressure inside the container body is released and a state in which it is closed;
A packing setting member integrally coupled with the packing member;
A second biasing member for applying a biasing force to the packing setting member in a direction to close the relief hole;
A second urging force adjusting member for adjusting the urging force by the second urging member is provided, and the position of the second urging force adjusting member is changed by the second adjustment operating portion, thereby It is preferable that the urging force can be changed.

  An escape hole for releasing the pressure inside the container body is provided as one of the safety mechanisms. By setting the internal pressure to escape from the escape hole, it is possible to set the pressure not to be higher than necessary. This relief hole is closed by a packing member. However, when the pressure inside the container main body exceeds a predetermined level, the relief hole is opened and the internal pressure can be released. The biasing force when closing the packing member can be adjusted by the second biasing force adjusting member, and based on this, the internal pressure can be set to the first pressure or the second pressure.

  The second adjustment actuating part according to the present invention is formed by a cam surface, and by pressing down the actuated part of the second urging force adjusting member by the cam surface, the spring as the second urging member is compressed, It is preferable that the urging force acting on the packing setting member is increased.

  As a method of changing the position of the second urging force adjusting member, it can be performed by a second adjusting operation portion formed by a cam surface on the operating member. By pushing down the actuated portion of the second urging force adjusting member with the cam surface, the spring can be compressed and the urging force can be increased. Therefore, the urging force can be increased by using a general-purpose configuration of the cam surface and the spring, and the low pressure and high pressure settings can be easily changed.

  The lid handle portion according to the present invention is preferably detachably attached to the lid body. Thereby, a maintenance, cleaning, etc. of a lid handle part can be performed easily.

Side view showing the appearance of a pressure cooker that is an example of a pressure cooker Top view of pressure cooker from above A perspective view showing the appearance of the lid body Exploded perspective view showing the structure of the main part of the internal mechanism of the lid handle Diagram showing the internal mechanism of the lid handle (main part) Diagram showing the internal mechanism of the lid handle (tip side) The perspective view which shows the structure of a locking mechanism Diagram showing cam shape The figure explaining operation when operating the operation member (low pressure position) The figure which shows the state where the pressure acted in the low pressure position The figure explaining operation when operating the operation member (high pressure position) The figure which shows the state where the pressure acted in the high pressure position The figure explaining operation when operating the operation member (pressure reduction position) The figure explaining operation when attaching and detaching the lid body The figure explaining the operation | movement at the time of attaching / detaching a lid handle part (the 1) The figure explaining the operation | movement at the time of attaching / detaching a lid handle part (the 2) The figure explaining the operation | movement at the time of attaching / detaching a lid handle part (the 3)

  A preferred embodiment of a pressure cooker according to the present invention will be described with reference to the drawings. Drawing 1 is a side view showing the appearance of the pressure cooker which is an example of a pressure cooker.

<Appearance structure of pressure cooker>
The pressure cooker is composed of a container body A and a lid body B that is detachable from the container body A. The attachment / detachment mechanism between the container main body A and the lid main body B can be performed by an appropriate known method such as a bayonet method. The lid body B further includes a lid top surface portion B1 and a lid handle portion B2. The lid handle portion B2 is detachably attached to the lid top surface portion B1. Thereby, maintenance and cleaning of the lid handle portion B2 can be performed.

  FIG. 2 is a plan view of the pressure cooker as viewed from above, (a) is an overall plan view, and (b) is a plan view showing a part of the internal mechanism. 2A is a perspective view showing an external configuration of the lid body B. FIG. The lid handle portion B2 is integrally configured by a handle body portion B21 located at the center of the circular lid top surface portion B1 in plan view and a handle knob portion B22. The handle knob B22 protrudes and extends in the radial direction so that it can be easily grasped by hand.

  An operation member 1 that is slidable along the radial direction (arrow C) is provided inside the handle knob portion B22. The operating member 1 can take four positions along the moving direction. That is, the attachment / detachment device P0, the pressure removal position P1, the low pressure position P2 (corresponding to the first pressure position), and the high pressure position P3 (corresponding to the second pressure position). The attachment / detachment device P0 is a position at which the lid body B can be detached from the container body A. The pressure removal position P1 is a position where the pressure inside the container body can be released to normal pressure. The low pressure position P2 is a position in the case where cooking is performed by setting the inside of the container body to “low pressure” (corresponding to the first pressure) higher than the normal pressure. The high pressure position P3 is a position for cooking by setting the inside of the container body to “high pressure” (corresponding to the second pressure) higher than “low pressure”.

  In addition, when cooking under pressure, in this embodiment, there are two “low pressure” and “high pressure”, but “medium pressure” and the like may be further increased to three or more.

  The operation member 1 is provided with an operation knob 1a for manual operation, and an index 1b is printed on the operation knob 1a. By adjusting this index to any one of the indices 20 to 23 representing each operation position, it is possible to set each cooking mode. Incidentally, the index 20 corresponds to the attachment / detachment device P0, the index 21 corresponds to the pressure removal position P1, the index 22 corresponds to the low pressure position P2, and the index 23 corresponds to the high pressure position P3. Each position is configured to give a click feeling when operating.

  As shown in FIG. 2B, an L-shaped engagement groove A1 is formed on the upper surface of the container body A in plan view. An engagement protrusion 1c is integrally formed on the rear surface side of the operation member 1, and when the operation member 1 is in the detachable device P0, the engagement protrusion 1c is positioned in a horizontal portion of the L-shaped engagement groove A1. Therefore, it is possible to escape from the engagement groove A1. That is, the lid handle B2 can be removed from the container main body A. When the operating member 1 is in a position other than the attaching / detaching device P0, the engaging protrusion 1c is positioned in a vertical portion of the L-shaped engaging groove A1, and therefore cannot be escaped from the engaging groove A1. Therefore, when pressure is applied to the inside of the container body, the lid body B cannot be removed from the container body A, which is safe.

  As shown in FIG. 2A, the pressure gauge 2 is provided in the substantially central portion of the lid main body B. When the inside of the container main body becomes high, the pressure gauge 2 pops upward according to the pressure value. Thereby, it is possible to visually recognize whether the pressure is normal pressure, low pressure, or high pressure.

  Further, as shown in FIG. 2A, a safety valve 3 is provided on the left side of the substantially central portion of the lid body B. The safety valve 3 can relieve pressure through the safety valve 3 when the pressure inside the container main body becomes higher than a predetermined level. Further, a safety valve 4 is also provided on the right side of the substantially central portion of the lid body B. The safety valve 4 is provided for the same purpose as the safety valve 3, but a lock pin for performing the locking operation of the operation member 1 is also provided at the position of the safety valve 4. That is, when the pressure inside the container body is increased, the operation member 1 is locked by the action of the lock pin so that it cannot be returned to the detachable device P0. Thereby, when the internal pressure of a container main body remains, it can prevent opening the cover main body B carelessly.

<Internal mechanism of lid handle>
Next, the internal mechanism of the lid handle portion B2 will be described with reference to FIGS. 3, 4, and 4A. FIG. 4 is a diagram illustrating a configuration of a main part of the timer mechanism, and FIG. 4A is a diagram illustrating a mechanism on the distal end side of the operation member.
In FIG. 4, the operation member 1 is located in the attachment / detachment device P0. The operation member 1 has a shape extending along the horizontal direction. A timer activation device 5 and a regulator 6 are provided in the operation area of the operation member 1. The timer starting device 5 is a device for starting the timer device 7 provided on the upper surface thereof. FIG. 3 is an exploded perspective view showing the structure of the main part of the above.

<Timer device>
When cooking by applying pressure, it is necessary to set the time for which the pressure is applied. Depending on the content to be cooked, it is necessary to set “low pressure” or “high pressure” and also the cooking time. The timer setting unit 7a has a function of setting the cooking time.

  The timer setting unit 7a includes operation keys for setting. For example, a time such as 5 minutes 30 seconds can be set. The timer display unit 7b displays the set time and counts down the cooking time. For example, when “low pressure” is set for 3 minutes, the countdown display starts when it is detected that the “low pressure” state is reached. If the count becomes 0, it can be recognized that cooking is completed. The notification unit 7c has a function of notifying that when the count reaches 0, and can be configured by a display lamp or a buzzer, for example.

  The start switch 70 is a mechanical switch and includes a first contact piece 70a and a second contact piece 70b. Normally, the first and second contact pieces 70a and 70b are separated and are in an off state. When the first and second contact pieces 70a and 70b come into contact with each other by the operation of the timer starting device 5, the start switch 70 is turned on. The timer control unit 7d controls each unit of the timer device 7. For example, when the start switch 70 is turned on, the countdown of the set cooking time is started and the time is displayed on the timer display unit 7b.

  The timer device 7 is detachably mounted on a mounting portion 24 provided on the upper surface of the lid handle portion B2. In addition, once the countdown by the timer device 7 starts, the countdown operation is continued as it is even if the timer device 7 is removed from the placement unit 24. Thereby, the person who cooks can confirm the completion of cooking time easily even if it is in the place away from the place where the pressure cooker is put.

<Timer starter>
Next, the configuration of the timer starting device 5 will be described. The timer starting device 5 has a function of turning on the start switch 70 of the timer device 7 and starting the countdown operation of the timer when the inside of the container body is increased to a predetermined pressure (low pressure or high pressure).

  The timer starting device 5 includes a timer input member 50, a spring force adjusting member 51 (corresponding to an urging force adjusting member), a coil spring 52 (corresponding to an urging member), and a packing member 53.

  The timer input member 50 is movable between an initial position shown in FIG. 4 and an operating position where the start switch 70 is turned on. The timer input member 50 includes a packing holding part 50a, a first flange 50b, a body part 50c, a second flange 50d, and a switch action part 50e. The timer input member 50 is formed in a shaft shape as a whole. The top part of the switch action part 50e is substantially flush with the placement part 24 in the initial position. The mounting portion 24 is fitted with a bush 24a and functions as a bearing for the switch operating portion 50a. When the timer input member 50 rises due to pressure, the second flange 50d can be raised to a position where it abuts against the back surface of the bush 24a.

  The spring force adjusting member 51 is a member for applying a spring force (biasing force) to the timer input member 50. The spring force adjusting member 51 includes a cylindrical main body portion 51a and a spring receiving portion 51b. A hole is provided in the center of the spring receiving portion 51b, and is set to a size that allows the second flange 50d and the switch action portion 50e of the timer input member 51 to pass through. A coil spring 52 is disposed in the space between the spring receiving portion 51b and the first flange 50b. The spring force of the coil spring 52 biases the timer input member 50 downward.

  A holding member 54 to which the outer peripheral surface of the main body 51a of the spring force adjusting member 51 is fitted is provided. The upper portion of the holding member 54 is positioned by a protrusion 24 b that protrudes from the back surface of the placement surface 24. An engaging claw 54 a is integrally formed at the lower part of the holding member 54.

  The top plate portion 25 has a double structure of a first top plate 251 located on the upper side and a second top plate 252 located on the lower side, and the space between these plates is for releasing internal pressure. It functions as a space. The engaging claw 54 a of the holding member 54 is fitted in a hole 251 a formed in the first top plate 251. A hole 252a is also formed in the second top plate 252 so that the packing member 53 can face the inside of the container body. The first top plate 251 is located on the lid handle portion B2 side, and the second top plate 252 is located on the lid top surface portion B1 side.

  The packing member 53 is made of rubber and has flexibility. The packing member 53 includes an accommodation recess 53 a that holds the packing holding portion 50 a of the timer input member 50, and a pressure contact portion 53 b that presses against the upper surface of the second top plate 252. The pressure contact portion 53 is configured so that pressure does not escape from the hole 252a of the second top plate 252. Accordingly, the pressure inside the container body acts to push the timer input member 50 upward through the packing member 53 as it is. Only when the pressure overcomes the urging force for the coil spring 52 to push down the timer input member 50, the timer input member 50 is pushed upward, and the start switch 70 is turned on.

  Next, the 1st adjustment action | operation part 10 for adjusting the timer starting apparatus 5 to a desired state is demonstrated. The operation member 1 is provided with a first adjustment operating portion 10 formed as a cam hole. The timer activation device 5 is adjusted to an initial state, a first activation state (for low pressure), and a second activation state (for high pressure). As shown in FIG. 4, the initial state is a state in which the inside of the container body is at normal pressure and no more pressure is applied.

  In the first activation state, the first urging force is set to act on the timer input member 50. At this time, the timer input member 50 is pushed upward when the “low pressure” larger than the normal pressure is reached, and the start switch 70 is turned on. In the second activation state, the second urging force larger than the first urging force is set to act on the timer input member 50. At this time, when the “high pressure” is larger than “low pressure”, the timer input member 50 is pushed upward, and the start switch 70 is turned on.

  The first adjustment operation unit 10 is formed with a first cam 10a, a second cam 10b, a third cam 10c, and a fourth cam 10d. The cam surfaces of the cams are continuous, and the first adjustment operation unit 10 is formed in the form of a cam hole as a whole. The first cam 10a corresponds to the attachment / detachment device P0, the second cam 10b corresponds to the pressure removal position, the third cam 10c corresponds to the low pressure position, and the fourth cam 10d corresponds to the high pressure position.

  The spring force adjusting member 51 is integrally formed with an actuated portion 51c, and its upper surface is formed in an arc shape. Moreover, each cam 10a-10d is a cam surface which has the shape of the recessed part in which the circular-arc-shaped part of the to-be-acted part 51c fits. As a result, the operation member 1 can be positioned at each position, and the feel when the cams 10a to 10d are fitted into the actuated portion 51c or when they are escaped can be provided as a click feeling.

  Incidentally, since the first cam 10a, the second cam 10b, and the third cam 10c are all set to the same height, when the operation member 1 is set to the attachment / detachment device P0, the pressure removal position P1, and the low pressure position P2. The urging force (corresponding to the first urging force) of the coil spring is set to the urging force corresponding to “low pressure”.

  Further, since the fourth cam 10d is at a lower position than the other cams, the spring force adjusting member 51 is pushed downward. Accordingly, since the coil spring 52 is further compressed, a larger urging force acts on the timer input member 50. Therefore, when the operating member 1 is set to the high pressure position P3, the biasing force of the coil spring is set to a larger biasing force (corresponding to the second biasing force) corresponding to “high pressure”.

<Regulator (pressure regulator)>
Next, the configuration of the regulator 6 will be described. The regulator 6 has a function of adjusting the pressure inside the container body. The regulator 6 is adjusted to any one of a normal state, a decompression state, a first state (low pressure), and a second state (high pressure). FIG. 4 shows a normal state.

  The regulator 6 includes a packing setting member 60, a spring force adjusting member 61 (corresponding to a second urging force adjusting member), a coil spring 62 (corresponding to a second urging member), and a packing member 63. The packing setting member 60 includes an engagement shaft portion 60a, a flange 60b, a cylindrical portion 60c, and a sliding portion 60d. The sliding part 60d has a slightly larger outer diameter than the cylindrical part 60c.

  The spring force adjusting member 61 includes a cylindrical main body portion 61a and a ceiling portion 61b. The ceiling portion 61b is in contact with the back surface portion 24c of the placement portion 24, and cannot move upward any further. The coil spring 62 is disposed in a space between the back surface of the ceiling portion 61 b and the flange 60 b of the packing setting member 60. Thereby, the packing setting member 60 is urged downward. The spring force adjusting member 61 is integrally formed with the upper operated portion 61c, and the packing setting member 60 is integrally formed with the lower operated portion 60e. These functions will be described later.

  In the packing member 63, a coupling portion 63a, a first attachment portion 63b, and a second attachment portion 63c are integrally formed. The packing member 63 is made of rubber like the packing member 53 and has flexibility. An engagement shaft portion 60a of the packing setting member 60 is snap-coupled to the coupling portion 63a, whereby the packing setting member 60 and the packing member 63 are integrated.

  The size of the packing member 63 is set so that it can pass through the hole 251b formed in the first top plate 251. An escape hole 252b is formed in the second top plate 252 coaxially with the hole 251b. When the escape hole 252b is not closed, the pressure inside the container body can be released to the outside. In FIG. 4, the operation member 1 is in the attachment / detachment position, and the inside of the container body is open to the outside.

  The holding member 64 is formed in a cylindrical shape, and its inner wall surface functions as a sliding surface on which the flange 60b of the packing setting member 60 and the main body portion 61a of the spring force adjusting member 61 slide. The upper part of the holding member 64 is positioned by being fitted to the fitting protrusion 24d. In addition, a fitting portion 64 a is provided below the holding member 64 and is positioned by being fitted into a hole 251 b formed in the first top plate 251.

  The first attachment portion 63 b of the packing member 63 is in contact with the back surface of the first top plate 251, and the second attachment portion 63 d enters the inside of the fitting portion 64 a of the holding member 64. Thereby, the packing member 63 is attached.

  The second adjustment operation unit 11 is formed with an upper first cam 11a, an upper second cam 11b, an upper third cam 11c, and an upper fourth cam 11d. Further, a lower first cam 11e, a lower second cam 11f, a lower third cam 11g, and a lower fourth cam 11h are formed. The cam surfaces of the cams are continuous, and the second adjustment operating portion 11 is formed as a cam hole as a whole.

  The upper first cam 11a and the lower first cam 11e correspond to the attachment / detachment device P0, the upper second cam 11b and the lower second cam 11f correspond to the pressure removal position, the upper third cam 11c and the lower third cam. The cam 11g corresponds to the low pressure position, and the upper fourth cam 11d and the lower fourth cam 11h correspond to the high pressure position.

  The spring force adjusting member 61 is integrally formed with an upper acting portion 61c, and its upper surface portion is formed in an arc shape. Moreover, each cam 11a-11d is a cam surface which has the shape of the recessed part in which the circular-arc-shaped part of the to-be-acted part 61c fits. Further, the lower set part 60e is integrally formed with the packing setting member 60, and its lower surface part is formed in an arc shape.

  With this arc-shaped shape, the operation member 1 can be positioned at each position, and when the cams 11a to 11h are fitted into the actuated portions 61c and 60e, or when they are escaped, a click feeling is provided. Can do.

  Incidentally, since the upper first cam 11a, the upper second cam 11b, and the upper third cam 11c are all set to the same height, the operation member 1 is set to the attachment / detachment device P0, the pressure removal position P1, and the low pressure position P2. In this case, the urging force of the coil spring is set to the urging force corresponding to “low pressure”.

  Further, since the upper fourth cam 11d is at a position lower than the other upper cams, the spring force adjusting member 61 is pushed downward. Along with this, the coil spring 62 is further compressed, so that a larger urging force acts on the packing setting member 60. Therefore, when the operating member 1 is set to the high pressure position P3, the biasing force of the coil spring is set to a larger biasing force corresponding to “high pressure”.

  Furthermore, the lower first cam 11e and the lower second cam 11f are set to the same height. In this position, the lower operated portion 60e is forcibly lifted to the position shown in FIG. That is, since the packing setting member 60 is forcibly lifted, the packing member 63 integrated with the packing setting member 60 sets the relief hole 252b in an open state.

  The lower third cam 11g and the lower fourth cam 11h are set at the same height, but are set at a position lower than the lower first cam 11e and the lower second cam 11f. This height position is a position where the packing member 63 closes the escape hole 252b.

<Operation member>
The basic configuration of the operation member 1 has already been described. FIG. 3 is a perspective view showing the shape of the operation member 1 and the external configuration of the regulator 6 and the timer starting device 7. The operation member 1 can be formed by resin molding. A main body portion 1d where the operation knob 1a is formed and a pair of cam forming plate portions 1e formed so as to branch from the tip of the main body portion 1d are provided. A lock main body 1f and a lock claw 1g are integrally formed on the distal end side of the cam forming plate 1e.

  A regulator 6 and a timer activation device 7 are disposed between the pair of cam forming plate portions 1e. Since a pair of cam surfaces constituting the first adjustment operation unit 10 and the second adjustment operation unit 11 are also formed, the operated portion 51c of the spring force adjustment member 51 and the lower cover of the packing member 60 that engage with the cam surfaces are formed. A pair of action part 60e and upper acting part 61c of spring force adjusting member 61 are also formed. Thereby, a stable operation can be realized.

<Safety valve>
The safety valve 4 includes a pin holder 40, a lock pin 41, and a silicon packing 42. The pin holder 40 includes a fitting hole 40a through which the lock pin 41 passes, a lower main body portion 40b, and an upper main body portion 40c. A screw is formed on the outer peripheral surface of the upper main body portion 40b, and the nut 43 is screwed together. A hole 251c is formed in the first top plate 251. After inserting the pin holder 40 into the hole 251c from below, the pin holder 40 is fixed to the first top plate 251 by tightening the nut 43. be able to.

  A step portion is formed in the lower main body portion 40 b of the pin holder 40, and the packing member 44 is sandwiched between the step portion and the first top plate 251. A contact piece 44 a having flexibility is formed on the packing member 44 and is in contact with the periphery of a hole 252 c formed in the second top plate 252.

  The lock pin 41 is normally positioned downward due to its own weight, but when a pressure higher than its own weight is applied, the lock pin 41 is moved upward. A through hole 41b is formed in the lock pin 41 along the axis. The lock pin 41 also has a function of locking the operation of returning the operation member 1 to the attachment / detachment device.

<Pressure gauge>
As for the pressure gauge 2, the 1st parameter | index 2a and the 2nd parameter | index 2b are formed in the outer peripheral surface. The first index 2a corresponds to “low pressure”, and the second index 2b corresponds to “high pressure”. It is made to visually recognize whether or not each set pressure has been reached. The pressure gauge 2 is formed with a shaft portion 2c and a shaft head 2d, and a packing member 201 is fitted into the shaft head 2d.

  A coil spring 200 is disposed on the outer periphery of the shaft portion 2c, and biases the pressure gauge 2 to the initial position shown in FIG. When pressure is applied to the inside of the container body, the pressure gauge 2 rises by an amount corresponding to the magnitude of the pressure.

<Ladder handle lock mechanism>
Next, the lock mechanism 8 that locks the lid handle portion B2 to the lid top surface portion B1 will be described with reference to FIGS. 4 and 4B. FIG. 4B is a perspective view showing the configuration of the lock mechanism 8. The lid handle B2 is detachably attached to the lid top surface B1 for maintenance and the like.

  The lock mechanism 8 includes an operation lever 80, a first link lever 81, and a second link lever 82. FIG. 4 shows a state where the lid handle B2 is locked. The operation lever 80 can rotate with respect to the rotation center 80a, and can be rotated counterclockwise in FIG. The first link lever 81 has a rotation center 81a, a link fulcrum 81b, and a contacted surface 81c that contacts the cam surface 80b of the operation lever 80a.

  The second link lever 82 is coupled to the first link lever 81 so as to be relatively rotatable at the link fulcrum 81b described above, and a lock portion 82a is formed at the other end. An engagement claw 252d is formed on the second top plate 252 so that the lock portion 82a can be engaged. By operating the operation lever 80 counterclockwise in the figure, the locked state can be released. The cam surface 80b of the operation lever 80 is always in contact with the contacted surface 81c of the first link lever 81 by a spring (not shown).

<Operation (low pressure position)>
Next, an operation when the operation member 1 is operated will be described. FIG. 5 shows a state in which the operation member 1 is slid from the attachment / detachment position P0 to the low pressure position P2. At the attachment / detachment position P0, the first cam 10a of the first adjustment operating portion 10 is fitted to the operated portion 51c of the spring force adjusting member 51. However, at the low pressure position P2, the third cam 10c is connected to the operated portion 51c. Mating. However, since the first cam 10a and the third cam 10c have the same height, the position of the spring force adjusting member 51 does not change, and the biasing force applied by the coil spring 52 does not change.

  On the other hand, for the second adjustment operating portion 11, the upper third cam 11 c is fitted to the upper operated portion 61 c of the spring force adjusting member 61, and the lower third cam 11 g is the lower operated portion of the packing setting member 60. Fits to 60e. Since the upper third cam 11c is at the same height as the upper first cam 11a, the position of the spring force adjusting member 61 does not change. On the other hand, the lower third cam 11g is at a lower position than the lower first cam 11e. Therefore, due to the action of the coil spring 62, the packing setting member 60 is pushed downward, and the packing member 63 integrally connected thereto is forcibly pushed downward. Thereby, the escape hole 252b is closed by the packing member 63, and the state which a pressure is applied inside a container main body is set.

  FIG. 5A shows a state in which pressure is applied. When a pressure corresponding to “low pressure” (first pressure) is applied, the timer input member 50 rises against the urging force of the coil spring 52. Thereby, the switch action part 50e of the timer input member 50 turns on the start switch 70 of the timer apparatus 7, and the countdown operation | movement of cooking time is started.

  When an internal pressure equal to or higher than “low pressure” is applied, the packing setting member 60 of the regulator 6 rises against the urging force of the coil spring 62. Thereby, since the packing member 63 is also lifted, the escape hole 252b changes from the closed state to the open state. Thereby, pressure can be relieved. As described above, the function of the regulator 6 is configured so that an internal pressure higher than “low pressure” is not applied.

<Operation (high pressure position)>
Next, FIG. 6 shows a state in which the operation member 1 is slid to the high pressure position P3. At the high pressure position P2, the fourth cam 10d is fitted to the actuated portion 51c. Since the fourth cam 10d is at a lower position than the first cam 10a and the third cam 10c, the spring force adjusting member 51 is pushed downward, whereby the coil spring 52 is further compressed. Therefore, the urging force acting on the timer input member 50 is increased to the urging force corresponding to “high pressure”.

  On the other hand, for the second adjustment operating portion 11, the upper fourth cam 11 d is fitted to the upper acting portion 61 c of the spring force adjusting member 61, and the lower fourth cam 11 h is the lower acting portion of the packing setting member 60. Fits to 60e.

  Since the upper fourth cam 11d is at a position lower than the upper first cam 11a and the upper third cam 11c, the spring force adjusting member 61 is pushed downward, and the urging force corresponds to “high pressure”. Will be increased. The lower fourth cam 11h is set to the same height as the lower third cam 11g. Therefore, a larger urging force by the coil spring 62 acts on the packing setting member 60, and the pressure when the packing member 63 closes the relief hole 252b becomes larger.

  FIG. 6A shows a state in which pressure is applied. When a pressure corresponding to “high pressure” (second pressure) is applied, the timer input member 50 rises against the urging force of the coil spring 52. Thereby, the switch action part 50a of the timer input member 50 turns on the start switch 70 of the timer device 7, and the countdown operation of the cooking time is started. Thus, by changing the urging force, the timing at which the start switch 70 is turned on can correspond to “low pressure” and “high pressure”.

  When an internal pressure equal to or higher than “high pressure” is applied, the packing setting member 60 of the regulator 6 rises against the urging force of the coil spring 62. Thereby, since the packing member 63 is also lifted, the escape hole 252b changes from the closed state to the open state. Thereby, pressure can be relieved. As described above, the function of the regulator 6 prevents the internal pressure higher than “high pressure” from being applied. Thus, by changing the urging force, the timing at which the regulator 6 operates can correspond to “low pressure” and “high pressure”.

<Operation (pressure release position)>
FIG. 7 shows a state in which the operation member 1 is slid to the pressure removal position P1. In this decompression position P1, cooking at the low pressure position P2 or the high pressure position P3 has been completed, but if it is desired to remove the lid body B when the internal pressure inside the container body still remains, the lid body B remains with the internal pressure remaining. Since it is dangerous to remove the pressure, it is preferable to remove the pressure after releasing the internal pressure. Therefore, a pressure removal position P1 is provided between the low pressure position P2 and the attachment / detachment position P0 so that the pressure can be removed.

  The positions of the cams of the first adjustment operation unit 10 and the second adjustment operation unit 11 are the same as the attachment / detachment position P0. That is, the lower second cam 11 f of the second adjustment operation unit 11 lifts the packing setting member 60. Accordingly, the packing member 63 is lifted and the escape hole 252b is opened. Therefore, the remaining internal pressure can be released through the relief hole 252b.

  The lid body B cannot be removed from the container body A at the pressure removal position P1. After the pressure is removed at the pressure removal position P1, the lid body B can be safely removed by moving the operation member 1 to the attachment / detachment position P0.

<Removal operation of the lid body>
Next, the attaching / detaching operation of the lid body B will be described with reference to FIG. As shown in FIG. 2, at the attachment / detachment position P0, the engagement protrusion 1c is positioned at the horizontal portion of the engagement groove A1, so that the engagement protrusion 1c can escape from the engagement groove A1. The escaped state is shown in FIG.

  On the other hand, a release protrusion A2 is formed on the container body A. In addition, a knob lock 26 is pivotally supported on the lid handle B2 of the lid body B so as to be rotatable around a spindle 26a. The knob lock 26 is urged counterclockwise by a spring (not shown). In this state, the operation member 1 is locked at the attachment / detachment position P0 so that the operation member 1 cannot be operated. Therefore, the operation member 1 cannot be operated with the lid body B removed.

  When the lid body B is mounted, the release protrusion A2 of the container body A rotates the knob lock 26 in the clockwise direction against the biasing force of the spring. Thereby, the operation member 1 is set in an operable state (FIG. 8B). At the pressure removal position P1 (the same applies to the low pressure position P2 and the high pressure position P3), the engagement protrusion 1C is in the vertical portion of the engagement groove A1 (indicated by 1C '), and therefore the lid body B cannot be removed.

<Removal operation of lid handle>
FIG. 9 is a diagram showing an attaching / detaching operation of the lid handle portion B2. FIG. 9A is a diagram illustrating a mounted state, FIG. 9B is a diagram illustrating a state in which the lock is released, and FIG. 9C is a diagram illustrating a state in the middle of removing the lid handle B2. The removal of the lid handle B2 can be performed with the lid body B removed from the container body A.

  As shown in FIG. 9B, the operation lever 80 is rotated counterclockwise around the rotation center 80a. As a result, the first and second link levers 81 and 82 operate, and the lock portion 82a of the second link lever 82 is released from the engaging claw 252d of the second top plate 252.

  A first top plate 251 having an engagement claw 251d is provided on the bottom surface of the lid handle portion B2, and is engaged with an engagement hole 253a of the engagement plate 253 attached to the upper surface of the lid top surface portion B1. ing. As shown in FIG. 9C, the lid handle B2 can be lifted with the position of the engaging plate 253 as the center of rotation.

<Another embodiment>
The specific structure of the pressure cooker according to the present invention is not limited to the illustrated one. The operation member 1 may be configured by assembling a plurality of parts, instead of being configured by a single part.

  In the present embodiment, the operation member 1 is configured so that the two pressure states of the low pressure position P2 and the high pressure position P3 can be set, but more than two pressure states can be set by providing an intermediate pressure position or the like. You may do it.

A container body B lid body B1 lid top surface part B2 lid handle part B21 handle body part B22 handle knob part P0 attachment / detachment device P1 pressure-removal position P2 low-pressure position P3 high-pressure position 1 operation member 1a operation knob 5 timer starting device 6 regulator 7 timer device 8 Lock mechanism 10 1st adjustment action part 11 2nd adjustment action part 50 Timer input member 50e Switch action part 51 Spring force adjustment member (biasing force adjustment member)
51c Actuated part 52 Coil spring (biasing member)
53 Packing member 60 Packing setting member 61 Spring force adjusting member (second biasing force adjusting member)
62 Coil spring (second biasing member)
63 Packing member 70 Start switch 251 First top plate 252 Second top plate 252b Relief hole

Claims (8)

A pressure cooker for cooking food under pressure, comprising a container body, a lid body detachably attached to the container body, and a lid handle portion attached to the lid body;
The lid handle is
At least an attaching / detaching position where the lid body can be attached / detached, a first pressure position enabling cooking under a first pressure, and a second enabling cooking under a second pressure higher than the first pressure. An operation member operable at a pressure position;
A regulator that is adjusted to a normal state, a first state, and a second state so that the interior of the container body is at least one of normal pressure, first pressure, and second pressure;
A timer device that counts cooking time under pressure;
A first activation state in which the timer device is activated when the inside of the container body reaches the first pressure and a second activation state in which the timer device is activated when the inside of the container body reaches the second pressure are adjusted. A timer starting device,
The operating member is
A first adjustment operating unit for adjusting the activation state of the timer activation device;
A second adjustment operating part for adjusting the state of the regulator,
In the first pressure position, the timer adjustment device is adjusted to the first activation state by the first adjustment operation unit, and the regulator is adjusted to the first state by the second adjustment operation unit,
In the second pressure position, the timer adjustment device is adjusted to the second activation state by the first adjustment operation unit, and the regulator is adjusted to the second state by the second adjustment operation unit. Pressure cooker. The timer device includes a switch for starting the counting of cooking time,
The timer starter is
A timer input member movable between an initial position and an action position for operating the switch;
An urging member that urges the timer input member to an initial position,
In the first activation state, a first urging force by the urging member is applied to the timer input member, and in the second activation state, a second urging force greater than the first urging force is applied by the urging member. The pressure cooker according to claim 1, wherein the adjustment is performed by the first adjustment operation unit so as to be able to perform. A biasing force adjusting member for adjusting the biasing force by the biasing member is provided, and the biasing force of the biasing member can be changed by changing the position of the biasing force adjusting member by the first adjustment operation unit. The pressure cooker according to claim 2. The first adjustment actuating portion is formed by a cam surface, and by pushing down the actuated portion of the biasing force adjusting member by the cam surface, the spring that is the biasing member is compressed and acts on the timer input member. The pressure cooker according to claim 3, wherein the pressure cooker is configured to increase power. 5. The pressure cooker according to claim 4, wherein the cam surface is formed with a recess into which the operated part is fitted at a position corresponding to the first pressure position and the second pressure position. The regulator is
A packing member that can be set to a state in which an escape hole for releasing the pressure inside the container body is released and a state in which it is closed;
A packing setting member integrally coupled with the packing member;
A second biasing member for applying a biasing force to the packing setting member in a direction to close the relief hole;
A second urging force adjusting member for adjusting the urging force by the second urging member is provided, and the position of the second urging force adjusting member is changed by the second adjustment operating portion, thereby The pressure cooker according to any one of claims 1 to 5, wherein the urging force can be changed. The second adjustment actuating portion is formed by a cam surface, and the actuating portion of the second urging force adjusting member is pushed down by the cam surface to compress a spring which is the second urging member, and the packing setting member The pressure cooking utensil according to claim 6, wherein the pressure cooking utensil is configured to increase an urging force acting on the pressure. The pressure cooker according to any one of claims 1 to 7, wherein the lid handle portion is detachably attached to the lid body.

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