JPS6110571Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is capable of automatically and accurately performing the heating time end operation of turning off the power to the heater and the steaming time end operation of opening the steam release means, and at the same time. To provide a pressure cooker in which a timer operation for time setting can be performed at any time before boiling in the container.

In order to achieve the above object, the present invention includes a detection means for detecting the boiling state in the container based on pressure, temperature, etc., a switch member that is linked to a timer and turns off electricity to the heater at a time set by the timer, and a timer. An actuating member that opens the steam release means at a time set by a timer in conjunction with a timer, a preset time for actuating the switch member, and a preset time for actuating the actuating member can be set independently of each other, and the actuating member automatically opens based on a detection signal from the detecting means. The pressure cooker is characterized in that the pressure cooker is equipped with a timer that starts automatically.

The present invention will be explained in detail below based on embodiments shown in the drawings.

In the first embodiment of the present invention shown in FIGS. 1 to 4, a wind-up timer 3 is disposed on the base 2a of a handle 2 attached to a lid 1, and a steaming time is set on a rotating shaft 4 of the timer 3. The dial member 5 is attached using a set screw 6. This dial member 5
The head 7 is provided with a protrusion 8 that serves as a guide, and the shaft 9 is provided with a protrusion 8 that serves as a guide.
A screw 10 is engraved in the lower part of the holder, and a vertical groove 11 is also provided. A co-rotating member 12 is fitted onto the shaft portion 9 of the dial member 5.
2 consists of a disk portion 13 having a larger diameter than the head 7, a cylindrical portion 15 fitted onto the shaft portion 9, and a first cam plate 14 fixed to the cylindrical portion 15 so as to rotate integrally therewith, In addition, a first cam protrusion 16 is provided on a part of the outer edge of the lower surface of the first cam plate 14. Further, the disk portion 13
A circular recess 17 is provided in the center of the upper surface, and a time setting scale 18 is engraved on the periphery of the recess. The head 7
A disc spring 19 is disposed between the concave portion 17 and the concave portion 17, and a second cam plate 20 is disposed below the cylindrical portion 15, and these are fitted onto the shaft portion 9. In this way, when the nut 21 screwed into the lower end of the shaft portion 9 is tightened to an appropriate strength, the elasticity of the disc spring 19 can impart an appropriate rotational resistance to the co-rotating member 12, and only when an external force above a certain level is applied. Relative rotation occurs between the dial member 5 and the co-rotating member 12. Further, the second cam plate 20 has a second cam plate on a part of the outer edge of its lower surface.
It has a cam protrusion 22 and a rotation stopper 24 on the periphery of its center hole 23, and is configured to rotate integrally with the dial member 5 by engaging the protrusion 24 with the vertical groove 11. are doing.

A pivot shaft 25 is used at a proper position of the handle 2 to pivotally support a second operating piece 26 that seesaws. This second actuating piece 26 has a center of gravity on the tip end 27 side,
The base end portion 28 contacts the lower surface of the second cam plate 20, while the tip portion 27 is arranged close to the lower surface of the weight body 30 of the weight type steam valve 29 disposed in the center of the lid body 1. . The weight type steam valve 29 includes a base body 32 having a steam passage (not shown) and a weight body 30 that closes this steam passage with its own weight.
The pressure inside the container is adjusted by the weight of 0, and
By tilting the weight body 30 at the end of the steaming time, the steam passage is opened, the steam inside the container is released, and the pressure inside the container can be reduced.

The lower surface of the first cam plate 14 is brought into contact with a base end 35 of a first actuating piece 34 which is pivoted at a proper position of the handle 2 by a pivot 33 and moves in a see-saw motion. The center of gravity of the first actuating piece 34 is on the side of the tip 36, and the tip 36 is connected to a grip 37 provided on the side surface of the lid 1.
(The left handshake is not shown) protrudes downward from the hole 31. In addition, the first actuating piece 3 is moved by a torsion spring.
4 may be biased clockwise in FIG.

Reference numeral 60 denotes an outer case, in which a heater 61 is arranged, and a pair of left and right hand grips 6 on the upper outer circumferential surface of the outer case.
3 and 63, and is configured such that a container (pot body) 57 can be housed within the outer case 60. A micro switch 64 is attached to one of the handshakes 63, 63, and the switch lever 65 is
is turned on by the tip 36a of the first actuating piece 34.
It is configured to be turned off. In the illustrated example, a handshake 37 of the lid body 1 and a handshake 63 of the outer case 60 are shown.
Position regulating portions 66 and 67 are provided between them, so that when the lid 1 and the outer case 60 are set at a predetermined position in the circumferential direction, the tip 36a of the first operating piece 34 pushes the switch lever 65. , the heater 61 is enabled to be energized. On the other hand, when the lid 1 and the outer case 60 are displaced from the predetermined position, the micro switch 64 is turned off. Furthermore, 62 is the inner case,
A heater 61 is attached to the upper surface of the bottom. Also 6
8 is a lead wire, and 58 is a packing.

The timer 3 has an internal structure as shown in FIG. 3, and releases energy stored by a mainspring 38 while being controlled by an pallet wheel 39 and an escape wheel 40 to rotate the rotating shaft 4. . The timer 3 also has a ratchet wheel 44 that rotates integrally with the rotating shaft 4, and a pawl 45 that is pivotally supported by a pivot shaft 45a and engages with the ratchet wheel 44. This pawl 45 is biased by a spring 46 and engages the ratchet wheel 44 to prevent rotation of the rotary shaft 4 at a predetermined position. It comes off from the ratchet wheel 44, allowing rotation of the rotating shaft 4 and, in turn, starting the timer 3.
Although the pin 43a is fixed to the ratchet wheel 44 and the striking lever 43 is actuated at a predetermined time, the bell body 44a is struck.
It is preferable to set this ringing time at the end of the steaming time.

A pressure detection member 49 attached to the lid body 1 is arranged below the timer 3. This pressure detection member 49 has a through hole 52 that passes through the lid 1 and communicates with a container 57 formed on the lower surface of a main body 51 that is fixed to the lid 1 by a nut 50, and a through hole 52 that communicates with a container 57. A valve stem 5 having a pressure-receiving valve head 53 seated so as to be openable and closable
4 toward the through hole 52 with a predetermined pressure, and the upper end 56 of the valve stem 54 is brought into contact with the lower end of the timer operating rod 48, and the container 57
The valve stem 54 is configured to move upward when the inside reaches a boiling state (normally set at 1.8 atmospheres). Therefore, when the inside of the container 57 becomes boiling,
The pressure causes the valve stem 54 to move upward, and the timer operating rod 48 to move upward, thereby causing the timer 3
can be started.

FIG. 4 shows the first cam plate 14 and the second cam plate 20.
A developed side view is shown. When using the pressure cooker of this embodiment, first set the lid 1 and the outer case 60 in a predetermined position, make the heater 61 energized, and set it at any point before the inside of the container 57 boils. 4, the dial member 5 and the co-rotating member 12 are rotated independently of each other, and the heating time (the time from boiling to turning off the heater 61) _T1 and the steaming time (the time from turning off the steam to (time until the pressure inside the container 57 is reduced after release)
Set _T2 . A indicates the initial setting point, A' indicates the maximum setting time point, and B indicates the timer starting point. timer 3
As mentioned above, starting is automatically started when the inside of the container 57 boils. Due to this start, the dial member 5
and the co-rotating member 12 co-rotate, and T ₁ in the figure
After a period of time has elapsed, the first cam protrusion 16 of the first cam plate 14 pushes down the base end 35 of the first operating rod 34,
As shown by the imaginary line in FIG. 1, the tip 36a is separated from the switch lever 65, the micro switch 64 is turned off, and the power to the heater 61 is turned off (the heating time is over). The first cam protrusion 16 is formed so that this off state continues longer than the steaming time _T2 . When T ₂ hours have passed after the end of the heating time, the second cam protrusion 22 of the second cam plate 20 pushes down the base end 28 of the second actuating piece 26, and as shown by the imaginary line in FIG.
The weight body 30 can be tilted through the tip 27 of the container 6 to open the weight type steam valve 29 and release the steam in the container 57. This steam release state ends after continuing for T ₃ hours (steaming time ends), and the spindle 3
0 returns to the original state. It is convenient if the bell body 44a is struck at the end of the steaming time to notify the end of the steaming time.

As described above, this embodiment is equipped with a pressure detection member 49 as the detection means A for detecting the boiling state in the container 57, and the pressure detection member 49 is built in the detection means 49, and the timer 3 is activated by the upward movement (detection signal) of the valve stem 54. It starts automatically. In addition, this embodiment has an actuating part B (consisting of the first cam plate 14, first actuating piece 34, etc.) attached to the lid body 1, and a passive part C attached to the outer case 60.
(consisting of a micro switch 64, etc.) constitutes a switch member D, which is configured to turn off the electricity to the heater 61 at the end of the heating time. Further, in this embodiment, the steam release means E (the weight type steam valve 29 corresponds to this) is operated in conjunction with the timer 3 at an arbitrary set time different from that of the switch member D.
The actuating member F (composed of the second cam plate 20, the second actuating piece 26, etc.) opens the container 57 and releases the steam inside the container 57.

A second embodiment of the present invention shown in FIG. 5 has a temperature detecting member 8 made of bimetal as the detecting means A.
0 is adopted. That is, when the bimetal 80 fixed to the lower surface of the lid 1 deforms into an arched shape due to the influence of the boiling temperature inside the container 57, the timer operating rod 48, which is projected downward from the lid 1, is moved upward. The configuration is such that the timer 3 can be started in conjunction with this.

In addition, in this embodiment, the co-rotating member 12a is screwed onto the intermediate member 73 keyed to the dial member 5, and the co-rotating member 12a is caused to co-rotate with the dial member 5 due to the friction caused by the screw engagement. The micro switch 64a attached to the handle 2 is turned on and off by the switch pushing protrusion 16a protruding from the appropriate location.
It can be turned off. This micro switch 64a is connected to a pair of terminals 70, 70 provided on the handshake 37 of the lid body 1 via lead wires 71, 71. On the other hand, inside the outer case 60 is a main switch 7 that controls the on/off of the heater 61.
At the same time, a pair of terminals 73, 73 to be connected to the pair of terminals 70, 70 are provided on the handshake 63 of the outer case 60, and a lead wire is connected between the terminals 73, 73 and the main switch 72. It is connected with 74,74. The upper and lower terminals 70, 70, 73, 73 are connected only when the lid 1 is set in a predetermined position on the outer case 60. Further, in this embodiment, when the micro switch 64a is turned on by the switch pushing protrusion 16a at the end of the heating time, the main switch 72 is turned off by the relay action.
The heater 61 is configured to stop being energized. It is preferable to use a battery as a power source in the circuit formed between the micro switch 64a and the main switch 72 so that a low voltage and weak current flows.

The other configuration of this embodiment is the same as that of the first embodiment, and common parts are given the same reference numerals.
In this embodiment, the switch member D is composed of a co-rotating member 12a, a micro switch 64a, upper and lower terminals 70, 73, a main switch 72, and the like.

Since the present invention has the above configuration, the power supply to the heater can be automatically turned off at an accurate time by the action of the detection means, timer, and switch member, so that there is no excess or deficiency in the heating time. In addition to being able to perform ideal cooking, the user can proceed with other tasks without worrying about heating time, which is convenient.

Further, according to the present invention, the timer operation for setting the heating time can be performed at any time before the boiling in the container, for example, at the start of cooking, and by the action of the detection means and the timer, the timer is automatically activated at the time of boiling. Since the heater starts, it is convenient for the user to leave the station during cooking, and the timer start point is accurate, which in turn has the effect of accurately setting the time to turn off the power to the heater. be.

Furthermore, according to the present invention, it is possible to set not only the end point of the heating time but also the end point of the steaming time on the timer. For example, by setting the steaming time in advance at the start of cooking, the timer will automatically start after that. This allows the container to be depressurized at the correct time, and prevents inconveniences such as over-steaming. As described above, according to the present invention, the heating time and steaming time can be set in advance, and the power to the heater can be automatically turned off and the pressure inside the container can be reduced at the correct time.As a result, the user can cook on demand. You will be freed from the inconvenience of cooking, and you will be able to perform ideal cooking.

[Brief explanation of the drawing]

Figure 1 is a longitudinal sectional front view of the main parts showing the first embodiment of the present invention, Figure 2 is an exploded perspective view of the main components, and Figure 3 is an exploded view of the internal structure of the timer. FIG. 4 is a perspective view, FIG. 4 is a developed side view of the first cam plate and the second cam plate, and FIG. 5 is a longitudinal sectional front view of the main parts showing a second embodiment of the present invention. 1... Lid body, 3... Timer, 57... Container,
60... Outer case, A... Detection means, B... Operating section, C... Passive section, D... Switch member, E...
Steam release means, F...operating member.

Claims (1)

[Scope of claim for utility model registration] Detection means for detecting the boiling state in the container based on pressure, temperature, etc., a switch member that is linked to a timer and turns off electricity to the heater at the time set by the timer, and a switch member that is linked to the timer and turns off the power to the heater at the time set by the timer. an actuating member that opens the steam releasing means at a time set by a timer; a set time for actuating the switch member and a set time for actuating the actuating member can be set independently of each other; A pressure cooker with a timer and a starting timer.