JPH0136649B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a timer device in which a time can be set by rotating a shaft or the like.

Configuration of conventional examples and their problems In recent years, time-limiting devices equipped with speed change mechanisms and power switch ON/OFF functions have been used in various appliances such as electric cooking appliances, but these various appliances have a single function. There is a growing demand for complex functions instead of basic functions. A toaster oven will be taken as an example of the above-mentioned various devices, and its details will be described below.

A toaster oven has heating elements with coiled heating wires arranged inside ceramic pipes placed at the top and bottom of the oven, and the food to be cooked is placed on a grid between the upper and lower heating elements. You can set the cooking time using a timer and perform various types of cooking. It has become popular in recent years due to its low cost and ease of use due to its simplified structure, as well as the westernization of dietary habits. The range of cooking ranges widely, including toast of various thicknesses, hot dogs, gratin, kutsuki, and mochiyaki.
Among them, it is most often used to replace traditional toasters and roast toast.

Now, when toast is roasted in a conventional toaster oven, especially when toast is roasted continuously, it is difficult to obtain toast with the same brown color. In other words, the toast roasting time is long the first time because heat is also taken away from the heating of the toaster oven, but from the second time onwards the toast roasting time is shorter than the first time because the toaster oven body is preheated. to reach the same brown color.

Therefore, when roasting toast continuously, it is necessary to roast at the time setting for the first time, and from the second time onwards, it is necessary to set a shorter time than the first time. It was extremely difficult to achieve the same brown color unless the set time was changed depending on the interval time. In order to solve the above problem, we need a dedicated timer for toast that can correct the roasting time for the first and second roasting, and a separate timer that can set the cooking time for things other than toast (a much longer time than the toasting time). However, as mentioned above, in view of the low cost of toaster ovens, a more rational method was required, and a method was required to solve the above problem by utilizing the timer function of a single device.

OBJECTS OF THE INVENTION The present invention attempts to accomplish two different time-limiting functions with one time-limiting device.

Structure of the Invention In order to achieve the above object, the present invention includes a time limit setting device having a rotating shaft and a crown, and sets a time limit by rotating the rotating shaft by moving a moving base, and Stop and regulate the operation of Tenfu,
The suspension of the operation of the heaven is released by the displacement of the thermally responsive bimetal, the restriction on the stop of the operation of the heaven is released by the return movement of the moving base, and the operation knob provided on the rotation axis The time limit is set by directly rotating the rotating shaft.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

In FIGS. 1 to 4, reference numeral A denotes a time setting device which is internally equipped with a drive source such as a spring type spring, a speed change mechanism, a power switch, etc., and an alarm mechanism 1. A movable table 7 is attached to a tangent shaft 4 provided on an arm 3 fixed to a rotation shaft 2 of the time setting device A, and a shaft 8 is attached to the movable table 7 which is biased in the return direction by a spring 5 and slides on a guide shaft 6. A contact portion 9a of a rotatable rotating table 9 attached via the contact portion 9a is in contact with the contact portion 9a. On the other hand, a presser plate spring 11 that contacts or isolates the spring 10 that is part of the speed change mechanism of the time setting device A acts, and the presser plate spring 11 gradually responds to the displacement of the thermally responsive bimetal 14. In conjunction with a snap action mechanism 12 that converts the movement of the displacing contact piece 13 into a sudden movement (snap action), the
It comes into contact with or isolating from. or,
A leaf spring 17 acts on the bimetal 14 in a direction so as to contact the contact piece 13 via a fixing base 15 and a fixing plate 16. Note that the contact surface 18a of the lever 18, which is biased by the spring 19, acts on the fixed plate 16 in a direction to pull the bimetal 14 away from the contact piece 13 against the leaf spring 17, and the other contact surface 18 of the lever 18 acts on the fixed plate 16.
A contact portion 9c of the rotary table 9 acts on b. Furthermore, in order to be able to adjust the toast color from light to dark, a cam 20 is provided that is close to and separated from the rotating table 9 so that the set time can be changed by changing the rotating angle of the rotating shaft 2. The inclined surface 20a of the cam 20 and the inclined surface 9b of the rotary table 9 come into sliding contact. The locking piece 7a provided on the movable table 7 has a locking portion 21 of a locking lever 21 biased by a spring 24 in the direction of locking the locking piece 7a.
a acts, and the end of the notch 23 energized by the spring 22 resists the spring 24 so that it falls into the recess 25a provided in the rotating cam 25 fixed to the rotating shaft 2 of the time setting device A. By striking the locking portion 21b of the locking lever 21, the locking state between the movable table 7 and the locking piece 7a is released.

In the above configuration, in the case of toast roasting, the browning color adjustment knob D that moves the browning color adjustment cam 20 is set in advance to a predetermined position, and the knob B that operates the movable table 7 is lowered against the spring 5. , 1st
The state shown in FIGS. 3 and 2 changes to the state shown in FIGS. 3 and 4. That is, by moving the moving table 7, the inclined surface 9b of the rotating table 9 and the inclined surface 20 of the cam 20
Since the contact portions a contact each other and move, the rotary table 9 rotates about the shaft 8 in the direction in which the contact shaft 4 and the contact portion 9a are separated, and moves to positions 9' and 9a' in FIG. Therefore, the rotation shaft 2 is regulated and does not rotate any further. Further, the contact portion 9c pushes the contact surface 18b, and the lever 18 acts against the spring 19, so that the fixed plate 16 receives the action of the leaf spring 17, and the bimetal 14 presses down the contact piece 13, and the snap-action mechanism 12
is activated, the presser plate spring 11 presses the top 10, and the return operation of the time setting device A is stopped.
Since the notch 23 moves through the recess 25a of the rotating cam 25 and rides on it, the notch 23 is attached to the spring 2.
The locking portion 21b of the locking lever 21 is displaced against the
The knob 23 is released, and the locking piece 7a and the locking portion 21a are locked by the action of the spring 24. now,
When the thermally responsive bimetal 14 is displaced to the state shown by the two-dot chain line in FIG. 4 when electricity is applied to the toaster oven, the presser plate spring 11 is separated from the top 10 by the action of the snap action mechanism 12, and the top 10 is activated. In order to start, the return operation of the time setting device A is started, and the rotating shaft 2 and the rotating cam 25 return to their original states (the state shown in FIG. 1). At this time, one end of the notch 23 falls into the recess 25a of the rotary cam and the other end of the notch 23 hits the locking part 21b of the locking lever 21, so that the engagement between the locking piece 7a and the locking part 21a is prevented. When released, the movable table 7 moves upward by the action of the spring 5 and returns to its original position, and the power is cut off. When baking bread or the like continuously, the bimetal 14 operates in accordance with the interval time, so the time for pressing the top 10 changes as appropriate to control the toasting time.

On the other hand, in the case of cooking other than toast, which takes a relatively long time, the movable table 7 is not lowered, but the time is set by rotating the operating knob C fixed to the rotating shaft 2. Therefore, since the engagement between the bimetal 14 and the snap action mechanism 12 is prevented by the lever 18, the time setting device A is not regulated in any way, and the time setting device A starts operating at the same time as the time setting operation is completed. A returns to operation, and after a set time, the power to the toaster oven is cut off to finish cooking.

Effects of the Invention As is clear from the description of the above embodiments, the timer of the present invention rationally utilizes one timer setting device and improves operability and reliability. If you want to set a long cooking time, you can directly rotate the rotary shaft using the control knob provided on the rotary shaft.On the other hand, if you need to correct the cooking time for toast etc., you can temporarily set a time limit. The time limit can be set by rotating the rotating shaft by moving the moving table while regulating the operation of the device.

In this way, one time setting device can be used to set time for different purposes, and the operating methods vary depending on the purpose, making it inexpensive and reliable, and its practical value is extremely high. It is a big thing.

[Brief explanation of drawings]

Fig. 1 is a front view of a timing device showing one embodiment of the present invention, Fig. 2 is a side view of the same, Fig. 3 is a front view showing the time setting state of the timing device, and Fig. 4 is the same side view. FIG. A...Timer, 2...Rotating axis, 3...Arm, 6...Guide axis, 7...Moving table, 9...Rotating table, 10...Tenfu.

Claims (1)

[Claims] 1 Equipped with a time setting device with a rotation axis and a crown,
By moving the moving table, the rotating shaft is rotated to set a time limit, and the operation of the heaven is stopped and regulated, and the suspension of the operation of the heaven is released by displacement of the thermally responsive bimetal. At the same time, the restriction on stopping the operation of the heaven is released by returning the moving table, and the time limit is set by directly rotating the rotating shaft using the operating knob provided on the rotating shaft. A timed device.