JPS6144359Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a timer device for a wind-up time switch, and in particular selects the rotational drive of the timer drive operation knob to a stopped state or to a continuous driving state after the set time for energizing the load has elapsed. The present invention relates to a timer device in which the selected state is displayed in conjunction with a timer driving operation knob.

The device of the present invention will be explained below using an example in which the device is used in an electric oven. Reference numeral 1 is an electric oven main body, and loads 3 and 3, which are heaters for roasting, are arranged in the upper and lower parts of the roasting chamber 2, respectively. A net shelf 4 is suspended approximately in the center of the roasting chamber 2, and the food to be cooked can be placed on the net shelf for roasting and cooking. Reference numeral 5 denotes a door body that allows the front opening of the roasting chamber 2 to be opened and closed, and a control section that controls the electrical conduction of the loads 3, 3 in the roasting chamber 2 is disposed on one side of the door body.

Reference numeral 6 denotes a spring-type time switch that is mounted on a front panel 7 on which the control unit is disposed. The time switch comprises a switch mounting base 8 for mounting on the front panel 7, a time switch body 9 mounted on the switch mounting base, an operating knob 11 pivotally supported on a main shaft 10 of the time switch body, and a control knob 11 pivotally attached to the switch mounting base 8.
and a display hand 12 that moves in accordance with the forward and backward movement of the timepiece.

The time switch main body 9 has a built-in clock mechanism (not shown) consisting of a spring spring, a reduction gear, etc., and the main shaft 10 is connected to the clock mechanism, and the main shaft 10 is manually rotated clockwise. When the clock mechanism is rotated, a rotation return force is accumulated in the clock mechanism, and when the clock mechanism is manually rotated to a desired angle and then released, the rotation is automatically restored over time.

Further, an electric contact piece 13 is provided in the time switch main body 9 to control opening and closing of energization to the loads 3, 3, and the electric contact piece 13 opens and closes the contacts in conjunction with the clock mechanism. . For example, if the clock mechanism is manually rotated fully clockwise and the hand is released, the rotation recovery force is applied such that it takes 30 minutes from the time the rotation recovery starts until the rotation stops. The electric contact 13 is closed from the full rotation position to the 15 minute position, which is the half rotation position. It is designed to be opened during subsequent rotations for return. Therefore, the load 3,
Power to 3 is turned on at this half-position.
−OFF control is possible. And this point is load 3,
3 OFF point (see FIG. 3) and is displayed on the front panel 7. For example, when the operating knob 11 rotates from the full rotation position (from the 15 minute set position) and reaches the OFF point, the power to the loads 3, 3 is cut off, and at the same time the time switch body 9 is installed at the rear thereof. A bell device 14 is operated in conjunction with the clock mechanism to notify that the OFF point has been reached. Since the clock mechanism still has the rotational return force stored for the remaining 15 minutes, the operating knob 11
Even after passing the OFF point, the rotational return operation continues for the remaining 15 minutes, and reaches the point where the stored power is exhausted and stops, that is, point E (illustrated on the front panel 7 in Figure 3). It is configured to notify you of what has happened.

In the electric circuit diagram shown in FIG. 8, loads 3, 3 are connected to the power source via electric contacts 13. In the electric circuit diagram shown in FIG.

Incidentally, the bell device 14 is operated again to notify that the indicator mark 26 of the operating knob 11 has reached point E. The operating knob 11 is pivotally supported on the main shaft 10 of the time switch main body 9.
The main shaft 10 is slidably supported in the longitudinal direction of the main shaft 10, and is engaged with a pin piece 15 implanted in the main shaft 10, so that when a rotational force is applied to the operating knob 11, the main shaft It is configured so that it can rotate together with 10. Reference numeral 16 denotes a spring piece that presses against the outer periphery of the shaft portion 17 of the operating knob 11, and the spring piece elastically presses against the annular grooves 18, 18 formed on the outer periphery of the shaft portion 17 of the operating knob 11. The sliding motion of the operating knob 11 is imparted with an articulated motion, and after the operating knob 11 has been slid to a desired position, it remains on the main shaft 10. Reference numeral 19 denotes a screw screwed onto the tip of the main shaft 10 to prevent the operating knob 11 from falling off when unnecessarily pulling stress is applied after the operating knob 11 is pivotally supported on the main shaft 10. It is something. Further, a projection piece 20 is integrally provided at the tip of the shaft portion 17 of the operating knob 11.
is formed protrudingly.

Reference numeral 21 denotes a stopper piece pivotally attached to the timer mounting base 8 so as to be freely rotatable. The stopper piece 21 abuts against the protrusion piece 20 of the operating knob 11. The stopper piece 21 is pivotally attached in a position parallel to the main shaft 10 of the time switch body 9. The tip abutment portion 22 of the stopper piece 21 is positioned on the trajectory that the protrusion piece 20 of the operating knob 11 describes when it is rotated. The tip abutment portion 22 of the ... pivotally supported at a pivot support point P so as to abut against a locking piece 23 so as to prevent further rotation in the clockwise direction. A spring member 25 is stretched across an end portion 24 opposite the tip abutment portion 22 so that the stopper piece 21 is always spring-biased in the clockwise direction.

In such a configuration, if the operating knob 11 is pressed inward, the stopper piece 21 will naturally be located on the rotation locus of the projection piece 20 provided on the operating knob 11, and the operating knob 11 will be moved slightly forward. If the locking motion is achieved and the stopper piece 21 is pulled out, the stopper piece 21 will not be located on the locus of the protrusion piece 20. Furthermore, the point at which the stopper piece 21 and the protrusion piece 20 collide, that is, engage, is the point at which the electric contact piece 13 operated by the clock mechanism of the time switch main body 9 opens and closes, and is at the OFF point. The instruction mark 26 drawn on the surface of the operation knob 11 is set to the OFF state on the front panel 7.
It is made to match the points.

The indicator hand 12 is designed so that it can be easily confirmed whether the operating knob 11 is being pushed or pulled.
The upper and lower ends are bent to form the display section 27 and the lower end to be the detection section 28, and the straight section 29 between the upper and lower sections is connected to the switch mounting board. It is rotatably pivoted to upper and lower ear pieces 30, 30 formed at 8. The detection section 28 is bent into a U-shape, with its folded section 31 moving in a circle around the straight section 29, and pivoted on the main shaft 10 of the time switch body 9. The shaft end face 32 of the operating knob 11 is positioned correspondingly.

Further, the display section 27 at the upper end is configured to face a display window 33 formed in the front panel 7, and the folded section 31 of the detection section 28 is pressed and rotated in one direction by the shaft end surface 32, so that the display section 27 faces the straight line. Part 29
rotates, that is, the display section 27 formed at its upper end also rotates, and the display window 3 provided in the front panel 7 rotates.
It moves in the left and right direction within 3. 34 is a spring piece that biases the indicator hand 12 to rotate in one direction;
In the embodiment, the display section 27 is biased by a spring so that it is always positioned to the right within the display window 33. In other words, the folded portion 31 is always spring biased toward the shaft end surface 32 of the operating knob 11.

With this configuration, when the operating knob 11 is pressed and slid with an articulated motion, the shaft end surface 32 of the operating knob 11 presses the folded portion 31, so that the display section 27 moves to the left within the display window 33. , and reverse operation knob 11.
By pulling out the display section 27, the display section 27 is moved to the right within the display window 33. Therefore, on both sides of the display window 33 of the front panel 7, as shown in FIG. For example, in addition to displaying the character ``push'', for example, the character ``oven'' may also be displayed as ``pu'', which will become clear for reasons explained later.
In addition to the text display, the text "cooked rice" is displayed.

Next, to explain the usage state, first, when performing normal oven cooking in the roasting chamber 2, when the operating knob 11 is pressed (state A in Fig. 5), the shaft portion 17 of the operating knob 11 is moved to the display needle. The folded part 31 formed at the lower part of the folded part 12 is pressed, and the display part 27 formed at the upper part moves to the left position of the display window 33 of the front panel 7 to indicate "push", that is, oven cooking is possible.

After that, when the operating knob 11 is rotated clockwise in accordance with the required roasting time of the object to be roasted, the electric contact 13 of the time switch body 9 is closed and the inside of the roasting chamber 2 is closed. Start energizing loads 3 and 3.
Then, after the sequentially set time has elapsed, the operation knob 11 is
When the indicator mark 26 reaches the OFF point drawn on the front panel 7, the bell 14 is activated to notify that cooking has finished, and the power to the loads 3, 3 is cut off.
Further, the protrusion piece 20 formed on the operating knob 11 engages with the stopper piece 21, and although the time switch body 9 itself still retains the rotational return force, the rotational movement is stopped and the entire stroke is completed. It is something. Unlike rice cooking, forcibly stopping the rotating operation of the operating knob after cutting off the power to the load during oven cooking does not require a period of "unevenness" after the end of cooking. This is because it is necessary to forcibly stop the rotating operation of the operating knob after the power is cut off, and to visually notify the user of the end of oven cooking. Next, to explain the case where rice is cooked in the roasting chamber 2, the roasting chamber 2
The metal container 35 containing the desired amount of rice and water is placed on the net shelf 4 inside the interior, and the operating knob 11 is first pulled out with an articulated motion (state B in FIG. 5), and the front panel 7 is opened. The display section 2 is located to the right of the display window 33 provided in the
7 moves to indicate "pull", that is, it is possible to cook rice.

After that, when the operating knob 11 is rotated clockwise in accordance with the cooking time according to the amount of stored rice, the electric contact 13 of the time switch body 9 is closed and the load 3 in the roasting chamber 2, Start energizing 3. When the instruction section 26 of the operating knob 11 reaches the OFF point on the front panel 7 after a sequentially set time has elapsed, the bell 14 is activated to notify that the rice cooking has ended.
In other words, it is notified that the power supply to the loads 3, 3 has been cut off. However, "cooking rice" requires "uneven time" and it is desirable to leave it as it is for a while even after the electricity is turned off. Fortunately, the metal container 35 is inside the sealed roasting chamber 2 and has sufficient preheating (heat suitable for uneven roasting). Even after the completion of rice cooking is notified, the time switch main body 9 continues to return to rotation. That is, the projection piece 20 formed on the operating knob 11 is the stopper piece 2.
1, and the instruction mark 26 of the operating knob 11 rotates in accordance with the "uneven" time drawn on the front panel 7, and at point E, the stop position, the bell 14 is activated again and the "cooking" button is activated. '' and announces that the entire process of ``Murashi'' has been completed.

Since the present invention is configured as described above, it is possible to easily select and use only the time setting for energizing the load, or setting some time in the no-load state after the energization to the load is cut off, and the selected state. It is possible to obtain a timer device that can be used in a wide range of applications, such as being able to easily check the timer device.

[Brief explanation of the drawing]

Fig. 1 is an external perspective view of an oven equipped with the timer device of the present invention, Fig. 2 is a sectional view of Fig. 1,
Fig. 3 is an enlarged front view of the main parts of Fig. 1, Fig. 4 is an external perspective view of the proposed device, Fig. 5 A and B are top views showing the state of use, and Fig. 6 is an exploded perspective view of Fig. 4. , FIG. 7 is an enlarged perspective view of the main part of FIG. 6, and FIG. 8 is an electric circuit diagram of an electric oven using the present device. 9...Time switch, 10...Main shaft, 11...
...Operation knob, 12...Display needle, 20...Protrusion piece,
21... Stopper piece.

Claims (1)

[Scope of utility model registration request] A spring-type time switch that manually rotates the load to a desired angle against the rotation return force, sets the energization time to the load, and in conjunction with the rotation return, continues the rotation operation by the rotation return force even after the energization is cut off; an operating knob that is rotatably supported on the main shaft of the time switch so as to be slidable in the front and rear directions thereof, and that rotationally drives the main shaft to set the energization time to the load; and the operating knob. an indicator hand that displays the front and back position of the operating knob that is movable following the back and forth sliding motion of the operating knob and is pivotally supported on the main shaft; A timer device comprising a stopper piece located on the rotation locus of the protruding piece in the front position of the child, and forcibly stopping the rotational operation of the operating knob at the same time as the power supply to the load is cut off.