JP6508862B1 - Oven tosta - Google Patents

Abstract

An oven toaster for controlling power supply to a heater using two timers can obtain various power supply modes including a power supply mode in which the power supply mode to the heater changes, and erroneous setting to the timer can be prevented. Provide an oven toaster, which reduces the manufacturing cost. In an oven toaster including an upper heater 4 and a lower heater 5, an upper heater includes an off timer 1 and a diode 3 in an on timer 2 having the same minimum scale position and interval as well as the longest operation time compared to the off timer. The lower heater was an oven toaster connected in parallel to the power supply via an off timer, connected in parallel to the power supply via power amount variable means connected in parallel. [Selected figure] Figure 2

Description

The present invention relates to an oven toaster, and more particularly to an oven toaster that uses two timers to control power supply to a heater.

The oven toaster is equipped with an upper heater and a lower heater, and it is required to have a well-glazed finish for most food prepared in the oven toaster. However, if the heater is cooked in a certain feeding mode, if the feeding mode is strong depending on various food conditions such as thickness, topping, temperature, etc., the inside will not be heated to the inside or the color will burn or burn. Problems occur such as prolonged cooking time and evaporation of water to impair the texture. In order to eliminate such problems, it is effective to start cooking in a weak feeding mode and change it to a strong feeding mode with good timing and finish it, but changing the setting of the feeding mode during cooking is effective. It is troublesome. Then, the oven toaster (patent document 1) and the electric oven (non-patent document 1) which can obtain the electric power feeding mode from which the electric power feeding aspect to a heater changes conventionally are disclosed. In the present specification, a feed mode in which the feed mode to the heater changes is referred to as a "change mode".

In addition, a timer commonly referred to as a spring timer or a watch timer is used for the oven toaster, and the timer is normally turned by the user when setting the operation time, a knob, and a knob. And a gear mechanism driven by the spring, and a timer main body consisting of contacts, and a scale. A timer provided with a contact (referred to as a contact) that is always off and operating when turned on is called an off timer, and a timer equipped with a contact that is always turned on and turned off when operating (called a b contact) is called an on timer. The timer used in the present invention is a timer having the above-described knob which is turned by the user. There is a type that displays a scale around the knob and a type that displays a scale on the knob itself. The former type has a scale indicating portion on the knob, and the latter type has a scale indicating section on the side of the knob.

Patent No. 5169494

Utility model full text Sho 54-182439

Hereinafter, in the sections described with respect to the prior art documents, the names used in the documents are used.

In patent document 1 (claim 1 corresponds), the timer controls the cooking time when the operation time is set only in the first timer, and the timer controls the cooking time when the operation time is set only in the second timer. When the operation time of the first timer is set to the second timer or less, the second timer controls the cooking time, and in the change mode in which the operation time of the first timer is set longer than the second timer, the first timer controls the cooking time The relationship between the operation time of both timers and the cooking time is complicated and it is confusing to grasp the cooking time. Further, referring to FIG. 5B, although the minimum scale position of both timers (the position where "off" is displayed in the figure) is equivalent, since the scale intervals of both scales are unequal, It is difficult to recognize and compare operating times. Therefore, Patent Document 1 has a problem that the user is likely to erroneously set the operation time in the timer. In particular, in the change mode, power supply to the lower heater is added under the situation where the food is already heated, so if it is set incorrectly, it may cause a serious accident such as burning or ignition of the food or fire.

Also, although the food to be cooked with the oven toaster is required to have a brown color in most cases, it is rarely found that the brown color is required only on the upper surface and only the lower surface. The power supply mode to the power is not compatible with the effective cooking method described above, since the power is reduced in response to the time-up of the second timer. Furthermore, since the settable time of the second timer is shorter than the first timer, the adjustment range of the timing at which the power supply mode changes in the change mode is limited, and a detailed power supply mode can not be obtained. Therefore, Patent Document 1 has a problem that it is possible to obtain the power supply mode of the change mode, but it is not suitable for cooking various food products with good finish.

Non-Patent Document 1 has a complicated problem that it is necessary to turn off the power switch and finish cooking only with the configuration. Therefore, it is conceivable to use the off timer instead of the power switch, which solves the problem. However, in the change mode, if the power is increased to the upper heater under the situation where the food is already heated (it doubles when using a diode as a current control device), the operating time is incorrectly set. It is more likely to cause the accident. In particular, the upper surface of the food is significantly different in burnability depending on thickness, presence of topping, presence or absence of tools, etc. Therefore, the upper heater is originally required to have a more precise power supply mode than the lower heater. Therefore, Non-Patent Document 1 has a problem that it is necessary to take measures to prevent erroneous setting to timers even when the above-mentioned complication is eliminated by using an off-timer instead of the power switch. There remains a problem that it is necessary to take measures to obtain a proper power supply mode.

Further, the same document states that "the timer is configured to be able to be set to the continuous state", and "to be able to set to the continuous state" means that the user arbitrarily turns the switch (3) off. It is assumed that this function can be set to a high cost timer because it requires additional complicated mechanism to obtain this function. Therefore, Non-Patent Document 1 also has a problem that the manufacturing cost is high.

As described above, if the operation time is incorrectly set in the timer in the kind of heating cooker that controls the power supply to the heater using two timers, there is a high risk of causing an accident compared to the case where only one timer is used. In particular, it is noticeable during change modes that are exploited to obtain the inherent close feed behavior as described above. However, in the past, not only did the user take measures to prevent the timer from setting the operating time incorrectly, but he did not even mention the necessity. Therefore, in the oven toaster for controlling the power supply to the heater by using two timers as in the present invention, it is safe that the user must take measures to prevent the timer from being set up erroneously. Problems are newly imposed, and to solve this problem at least it is required that the user can understand the cooking time clearly and the user can recognize the operation time of both timers in a simple manner. In order to make it easy to notice an incorrect setting, it is required that the operation times of both timers be able to be compared clearly. In addition, not only the oven toaster but also the product regarded as a commodity is inherently subject to the problem that it is necessary to suppress the manufacturing cost while improving the performance.

The present invention solves the various problems described above and meets the requirements, so that a wide variety of food products can be easily cooked to a good finish, preventing erroneous setting of the timer by the user, and suppressing manufacturing costs. The following measures were taken to provide an oven toaster.

In an oven toaster including an upper heater and a lower heater, the upper heater includes an off timer, and an amount of power obtained by connecting a diode in parallel to an on timer having the same minimum scale position and scale interval and maximum operating time as the off timer. is series connected to the power supply via a variable unit, the lower heater was a toaster oven, characterized in that the series connected to the power supply through the off-timer.

According to the present invention taking the above measures, the user adjusts the operating time of the on-timer to feed the upper heater by feeding the alternating current, feeding the half wave, feeding the half wave It can be selected from among the feeding modes of the change mode in which the current changes to the alternating current. Furthermore, since there is no limitation on the timing at which the feeding mode in the change mode changes, the user can freely adjust the same timing to obtain a thorough feeding mode. Therefore, the effect of cooking a wide variety of food products to a good finish easily is achieved.

In addition, since the off timer controls the power supply time to both heaters, that is, the cooking time, the user can grasp the cooking time clearly. Furthermore, since the indication of the scale of both timers does not differ, the user can easily recognize and compare the operation time of both timers. Thus, the effect of preventing the user from setting the timer incorrectly is achieved.

In addition, the circuit is simplified because the on timer is also used as a switch which is turned off all the time. Furthermore, since the difference between the two timers is only the contact point, the cost of both timers can be reduced. Therefore, the effect of suppressing the manufacturing cost is achieved.

FIG. 1: is sectional drawing (X-X cross section of FIG. 3) of 1st form. FIG. 2 is a circuit diagram of the first embodiment (with a power supply connected). FIG. 3 is a front view of the first embodiment. FIG. 4 is an enlarged view (normal state) of the setting unit of FIG. 3. FIG. 5 is an enlarged view of the setting unit of FIG. 3 (an example of a state in which the operation time is set). FIG. 6 is a front view of the first embodiment (a modification of the setting unit). FIG. 7 is a front view of the first embodiment (an example in which the off timer and the on timer are configured by twin timers). FIG. 8 is a circuit diagram of the second embodiment (a circuit in which a diode is replaced with a thermostat). FIG. 9 is a front view of the second embodiment. FIG. 10 is a circuit diagram of a third embodiment (an example in which a cam switch is added). FIG. 11 is a front view of the third embodiment. FIG. 12 is an enlarged view of the position symbol of FIG. 11 (the contact 1 and the contact 4 are in the on position).

The first embodiment will be described with reference to FIGS. However, “t1” is the operation time of the off timer, “t2” is the operation time of the on timer, “t2 = 0” is the state where the operation time is not set in the on timer, “power supply mode of high power” is the power supply mode in which alternating current is supplied. “Low power feeding mode” refers to a feeding mode in which a half wave current (a current obtained by half-wave rectifying an alternating current with a diode) is supplied. Also, illustration of accessory means such as contact protection means, noise prevention means, overheat prevention means, and the like, which are conventionally used appropriately, has been omitted.

FIG. 1 will be described. The oven toaster includes a casing (8) having a front opening (8a) and a bottom opening (8b) to be an exterior of the oven toaster, and the heating chamber (9a), the front, inside the casing (8) There is provided an inner box (9) having a food loading / unloading opening (9b) matching the opening (8a) and a waste removal opening (9c) matching the bottom opening (8b). At the bottom of the housing (8), a waste receptacle (12) detachably mounted to the bottom opening (8b) is disposed, and at the front of the housing (8), against the front opening (8a) A door (10) (generally provided with a glass having translucency and heat resistance) which can be opened and closed is disposed. In the middle of the heating chamber (9a), a net-like food receptacle (11) moving horizontally back and forth with a door (10) and a link (illustration of the link mechanism omitted) is horizontally disposed. The upper heater (4) is disposed above the lower and the lower heater (5) is disposed below. An off timer (1) and an on timer (2) are disposed at the front lower part of the housing (8) with the knobs (1a, 2a) exposed to hide the timer bodies (1b, 2b) (however, Since FIG. 1 is a cross section, the on timer (2) is not shown.) Each scale (1c, 2c) is displayed around each knob (1a, 2a) (see FIG. 3). The food to be cooked is taken in and out of the heating chamber (9a) through the front opening (8a) and the food taking-out opening (9b), and the figure shows the food placed on the food receiver (11). In general, the housing (8) and the inner box (9) and further parts are joined and assembled by means such as screwing, riveting, fitting, inserting, caulking, welding, etc. I omitted the details.

FIG. 2 will be described. A diode (3) is connected in parallel to the on timer (2) to constitute a power amount variable means (A). Then, by connecting the off timer (1), the electric energy variable unit (A) and the upper heater (4) in series in this order between both power supply lines (L), the upper heater (4) can be connected to the off timer are series connected to the power supply (B) through (1) and power amount varying means (a). Furthermore, the lower heater (5) is connected in parallel to the series circuit of the power amount variable means (A) and the upper heater (4), whereby the lower heater (5) can be powered via the off timer (1). are series connected to. Therefore, since the off timer (1) becomes a current path common to both heaters (4, 5), the off timer (1) supplies power to both heaters (4, 5) based on the operation time set in the same timer. Control time centrally, ie cooking time. Therefore, a user can grasp cooking time simply.

And since it is the on timer (2) in which the minimum scale position and the scale interval and the longest operation time are equivalent to the off timer (1), it has the following many features.

That is, since the minimum scale position and scale interval are equal to the on timer (2) as compared with the off timer (1), the indication of the scales of both timers (1, 2) as described in detail in FIGS. 4 and 5 There will be no harm to Thus, the user can easily recognize and compare the operation times of both timers (1, 2).

In addition, since the longest operating time is the same as the on-timer (2) compared to the off-timer (1), the feeding mode to the upper heater (4) corresponds to the operating time set in the on-timer (2) during cooking. It switches as follows. That is, when t2 = 0, since the on timer (2) remains on, the high power feeding mode of energizing via the same timer, and when t2 t t1, the on timer (2) turns off so that the diode ( 3) When the low power feed mode to be energized, when t1> t2> 0 is set, the low power feed mode triggers the same time up from the start of cooking to the time-up of the on timer (2) The feeding mode of the change mode which changes to the feeding mode of the high power. Then, the user can select an arbitrary feeding mode from the various feeding modes by adjusting the operating time set in the on timer (2). Furthermore, since the timing at which the power supply mode in the change mode changes is not limited and is free (t1> t2> 0), the high power power supply mode is unnecessarily strong even when cooking any food. It is possible to obtain a thorough feeding mode that can not be done. As described above, since various and elaborate feeding modes including a change mode adapted to the effective cooking method can be obtained only by the initial setting in cooking, various foods can be easily finished with a good finish. It can be cooked. In addition, it is also a measure to prevent accidents, such as the said fire, not to be forced to the electric power feeding aspect of high electric power unnecessarily.

In addition, since the longest operation time is the same as the on timer (2) compared to the off timer (1), t2 t t1 is set and the on timer is set during cooking regardless of setting any operation time in the off timer (1) Since 2) can be turned off all the time, the on timer (2) is also used as a switch turned off during cooking without using other parts such as a switch. Therefore, the simplification of the circuit and hence the manufacturing cost are suppressed. In addition, since the on-timer (2) can be turned off during cooking as described above, it is necessary that "the timer is configured to be set in the continuous state" described in Non-Patent Document 1. In addition, the cost increase as a part is prevented and thus the manufacturing cost is suppressed.

In addition, the difference between the two timers (1, 2) is almost the same as the contact point alone because the minimum scale position and scale interval and the maximum operating time are the same as the on timer (2) compared to the off timer (1). As a result, low cost as a part is achieved, which in turn reduces the manufacturing cost.

FIG. 3 will be described. The knob (1a, 2a) of the off timer (1) and the on timer (2) is exposed in the front lower part of the housing (8), and each scale (1c) around the knob (1a, 2a) , 2c) is displayed. The two knobs (1a, 2a) and the two scales (1c, 2c) are the setting part of the oven toaster, that is, the part where the control related to cooking is set by the user, and the cooking time is set in the off timer (1). In the on timer (2), the selection of the feeding mode and the timing at which the feeding mode changes in the change mode are set.

4 and 5 will be described. FIG. 4 is an enlarged view of the setting portion of FIG. 3. Both the knobs (1a, 2a) have a circular base when viewed from the front, and are convexly provided at a diameter portion of this base and thick linear at one end. The respective knob-like scale indication parts (1a1, 2a1) with marks are respectively provided, and the two knobs (1a, 2a) are equal. And since the minimum scale position (the position where "0" is displayed in the figure.) Is the same as the on timer (2) as compared to the off timer (1), as shown in the figure, the operating time is not always set. The scale indication portions (1a1, 2a1) of both knobs (1a, 2a) are aligned and directed in the same direction to indicate the respective minimum scale positions, and there is no inconsistency. Furthermore, since the on-timer (2) has the same graduation interval as the off-timer (1), FIG. 5 shows setting examples of each operation time (exemplified as t1 = 15 minutes, t2 = 12 minutes and 30 seconds). As shown, even when the operating time is set, the knobs (1a, 2a) are respectively rotated by an angle corresponding to the operating time, and there is no difference in the instruction of the both scales (1c, 2c). Therefore, the user can easily recognize and compare the operation time of both timers (1, 2) in addition to the simple grasp of the cooking time, so that the user can operate both timers (1, 2) Mis-setting is prevented. The mark indicating portion of the knob may be attached with the mark as exemplified in the present embodiment, but it is a knob having a shape for instructing the scale appropriately, such as sharpening one end as exemplified in FIG. For example, the mark can be omitted. In addition, when the scale indication portion is provided in a convex shape as in this embodiment, not only it is easy to turn the knob by hand, but in addition to vision, the operation time can be recognized easily and also by touch (by touch). It is particularly useful for people with visual impairment because it can be contrasted.

The setting unit is not limited to the portion illustrated in FIG. 3 and may be a portion having good operability and visibility, such as the front horizontal portion of the housing (8) as shown in FIG. And, in order to explain the function of each timer (1, 2), "cooking time" and "switching time" are written together above the scale (1c, 2c) of both timers (1, 2). Without limitation, for example, the off timer (1) does not deviate from the functions of the respective timers (1, 2) such as "cooking timer" or "heating time", and the on timer (2) "switching timer" or "switching timing". Appropriate characters and figures may be written together. In addition, as long as the user can clearly recognize and compare the turning angle of the two knobs (1a, 2a) and the instruction, it is not necessary that both the knobs (1a, 2a) be equal. For example, as shown in FIG. 6, the operation time of the on timer (2) may be set as necessary compared to the knob (1a) of the off timer (1) which must always set the operation time during cooking It is conceivable to reduce (2a), etc., and this is also a measure to prevent misidentification or misunderstanding between the off timer (1) and the on timer (2), and thus to prevent missetting.

The scales (1c, 2c) of the off timer (1) and the on timer (2) are not limited to numbers but include lines, figures, patterns, etc., and the maximum scale thereof matches the longest operation time of the timer. Although it may be made to do, it is also considered to consider as follows. That is, since the cooking time is controlled by the timer, the operation to set the operation time to the off timer (1) is always carefully performed based on the recipe, the cooking experience, the calculation, and the like. On the other hand, it is only necessary to set the operation time to the on timer (2) only when cooking in the change mode by setting t1> t2> 0, and of course it is not necessary to set when t2 = 0 In the case of setting t2 ツ t1, it suffices to turn the knob (2a) in the direction of the longest operation time for the time being, and it is not always necessary to set carefully. However, when the longest operation time is set in the off timer (1) and t2 且 つ t1 (in this case, exactly t2 = t1), the setting operation is a human operation. It is feared to set the longest operation time to the off timer (1) somewhat later after turning the knob (2a) of the on timer (2) earlier. Then, since the kind of the spring timer starts operation as soon as the operation time is set, t1> t2, and there is a disadvantage that the power consumption mode of the high power is unnecessarily indicated at the end of the cooking though it is somewhat . As a precaution against this inconvenience, it can be considered that at least the maximum scale of the scale (1c) of the off timer (1) is kept somewhat smaller than the longest operation time of the same timer (about 1-2 minutes). Even if the concern arises, it is prevented that t1> t2 unless a delay time is set to the off timer (1). Such consideration is also a measure to prevent an accident due to an erroneous setting. Therefore, although the on-timer (2) has the same minimum scale position and scale interval as the off timer (1), make the maximum scale of each scale (1c, 2c) of both timers (1, 2) equal. It is not something to force you. Regarding the maximum scale of the off timer (1), about 15 minutes to 30 minutes seems to be general, but it is not limited to this.

In addition, it is conceivable to slightly increase the maximum operation time of the on timer (2) compared to the off timer (1), but this increases the difference between the two timers (1, 2) and causes an increase in cost as a part. Unfavorable. However, as exemplarily shown in FIG. 7, the off timer (1) and the on timer (2) are constituted by twin knobs (13) provided with each knob (13a, 13b) of coaxial structure capable of turning individually or a dial. Although there is a concern that the cost as a part may be somewhat increased if the twin timer (13) is used, there is an advantage that the operation time contrast becomes extremely simple because of the coaxial structure.

Also, using two switching timers (a contact and a contact are connected in parallel and provided with a c contact), the a contact portion of one switching timer is used as the contact of the off timer, and the b contact of the other switching timer The part can also be used as an on timer contact. In addition, as timers, those having a sound generation means for notifying their own time-up are well known and widespread, and the off timer (1) can be provided with the same sound generation means.

Table 1 shows the feeding modes obtained by the first embodiment, but in order to simplify the table, the high power feeding mode is “high”, the low power feeding mode is “low”, and the change mode feeding mode is It was expressed as "change mode".

Incidentally, the form of series connection the upper heater to the power supply via the off-timer and power amount changing means, as well as in the form of series connection the lower heater to the power source is not limited to FIG. 2, although not shown the following As described in the above, a plurality of forms are considered, and the power supply mode to the lower heater differs depending on each form.

That is, off timer, connected by a series of power amount varying means and the upper heater in this order, and in the form of parallel connection of lower heater on the heater, straight to the power supply under the heater via the off-timer and power amount varying means Since the columns are connected, the feeding mode to the lower heater is the same as the feeding mode to the upper heater. In the configuration where the off timer, the upper heater and the power amount variable means are connected in series in this order, and the lower heater is connected in parallel to the series circuit of the upper heater and the power amount variable means, the lower heater is connected to the power supply only via the off timer. since the series connection for power supply mode of the lower heater is a high power feeding manner. Off-timer, the upper heater and the power amount varying means connected by a series in this order, and in the form of parallel connection of lower heater on the heater, series connected to the power supply under the heater via the off-timer and power amount varying means Therefore, the feeding mode to the lower heater is the same as the feeding mode to the upper heater. Electric power varying means, connected by a series of off-timer and the upper heater in this order, and in the form of parallel connection of lower heater on the heater, series connected to the power supply under the heater via the off-timer and power amount varying means Therefore, the feeding mode to the lower heater is the same as the feeding mode to the upper heater. Thus, in the present invention, but required to be a lower heater are series connected to the power supply via the off-timer, as described above, to supply also via power amount varying means in addition to the off-timer may be a lower heater are series connected Te.

The second embodiment is described with reference to FIGS. 8 and 9. However, hereinafter, the description of the portions equivalent to, common to, or duplicated with the first embodiment is omitted.

In the first embodiment, the power supplied to the heater is reduced by the diode (3) of the power amount changing means (A) (correctly reduced to half), and thus the amount of power supplied to the heater is Reduce. On the other hand, if a thermostat is used instead of the diode (3) in the power amount variable means (A) of the first embodiment, the power supplied to the heater is not reduced, but the thermostat is based on the heat retention temperature set in itself. Since the power supply mode in which power supply is interrupted is shown, the average power is reduced to reduce the amount of power supplied to the heater. As described above, although the process of power amount varying means differs between the case of using a diode and the case of using a thermostat, the amount of power supplied to the heater can be varied in either case. Therefore, as shown in FIG. 8, the oven toaster which substituted the diode by the thermostat (6) as a 2nd form is considered.

According to the second aspect, an oven toaster suitable for cooking food requiring a heating process at a predetermined temperature can be obtained. In addition, thermostats have variable thermal temperature type and thermal temperature fixed type, and if the former type is used, it is possible to adjust the amount of electric power to be reduced, and the heating performance can be further reduced. The front view is illustrated in FIG.

Table 2 shows three feeding modes obtained by the second embodiment, but for the sake of simplicity of the table, the feeding mode in which the feeding is interrupted is referred to as "intermittent", and from this "discontinuous" to high power The feeding mode changing to the feeding mode is expressed as "intermittent change mode" to distinguish from the "change mode" in Table 1.

The third embodiment will be described with reference to FIGS. Conventionally, in an oven toaster, a knob turned to a plurality of positions by the user, a cam interlocking with the knob, and a switch body consisting of contacts turned on and off by the cam, position symbols such as numerals and figures, The cam switch which consists of these is widely used. The cam switch is used mainly to change the heater supplying electric power or the electric power supplied to the heater by deforming the current path by appropriately combining the on / off states of the plurality of contacts disposed in the circuit. . Also in the present invention, it is conceivable to add a cam switch, and an example will be described.

In FIG. 10, the off timer (1), the power amount changing means (A), and the upper heater (4) shown in FIG. 2 are arranged in this order, and the power amount changing means (A) Based on a circuit in which the lower heater (5) is connected in parallel to the series circuit by the interval between the power amount changing means (A) and the upper heater (4) of the same circuit, the off timer (1) and the upper heater (4) During the time, the electric power variable means (A) and the lower heater (5), the off timer (1) and the lower heater (5), the contact 1 (7c1) of the cam switch (7), the contact 2 ( 7c2), contacts 3 (7c3) and contacts 4 (7c4) are added respectively. Further, to describe the mode of adding the respective contacts in detail, the contact 1 (7c1) is added so as to be interposed between the power amount changing means (A) and the upper heater (4), and the contact 2 (7c2) is It is added to be installed between the off timer (1) and the upper heater (4), and the contact 3 (7c3) is added to be installed between the electric power variable means (A) and the lower heater (5). The contact point 4 (7c4) is added so as to be interposed between the off timer (1) and the lower heater (5).

FIG. 11 shows an example where the rotational position of the cam switch (7) is five positions based on FIG. 10, compared with FIG. 3 with the knob (7a) of the cam switch (7) and a number of position symbols Is a setting unit to which is attached. FIG. 12 is an enlarged view of the added portion, in which three symbol areas are displayed concentrically around the knob (7a), and a position indicating the feeding mode at the time of t2 = 0 in the inner pattern area The position symbol representing the feeding mode at the time of setting t2 ≧ t1 in the middle symbol area and the position symbol representing the feeding mode at the time of setting t1> t2> 0 are displayed in the outer symbol area. ing. The respective position symbols are paired in the upper and lower views, the upper figure illustrating the feeding mode of the upper heater (4), and the lower figure illustrating the feeding mode of the lower heater (5). If one position is specifically described in FIG. 12, position symbol 1 (symbol 7 b 1, the upper and lower figures are thick lines) indicate that the upper heater (4) and the lower heater (5) have a high power feeding mode. Position symbol 2 (symbol 7 b 2, upper line is thin line and lower line is thick line) shows the upper heater (4) in a low electric power supply mode and the lower heater (5) in a high electric power supply mode. Position symbol 3 (symbol 7 b 3, the upper figure is two-step, the lower figure is a thick line) is a change mode in which the upper heater (4) changes from a low power feeding mode to a high power feeding mode The lower heater (5) is shown to indicate a high-power feeding mode in the feeding mode. As described above, even though they are at the same position, the operation modes of the two timers (1, 2) can be associated with each other to switch the power supply mode to three ways. It can be appropriately displayed on the housing, and the same can be said in the first embodiment and the second embodiment.

In addition to the cam switch, a rotary switch, a slide switch, a push button switch, a lever switch, etc. which are used by combining the on / off state of a plurality of contacts similarly to the cam switch can be used. Further, the switch is not limited to a switch having multiple contacts such as a cam switch, and a switch which can be independently turned on / off can be used when there are few contacts to be added.

Although the 13 feeding modes obtained in FIG. 10 and FIG. 11 are shown in Table 3 but not limited to this, the combination and position of the contacts can be adjusted according to the required feeding mode, The aspect which does not supply electric power was represented by "x". Although not shown, a cam switch or the like can be added to the second embodiment, and a cam switch is added similarly to FIG. 10 based on the circuit of FIG. The power supply mode obtained in this case can be understood by reading "low" in Table 3 as "intermittent" and "change mode" as "intermittent change mode".

The shapes, sizes, structures, arrangements, arrangements, displays, figures, symbols, etc. of the respective parts in the embodiment described above are merely examples and are not limited thereto, and any appropriate modifications may be made without departing from the scope of the present invention. Can be transformed, changed, etc. And, an oven toaster of a type (usually called a convection type) including a fan for stirring, circulating, flowing, etc. the hot air in the heating chamber (9a) to equalize the temperature in the heating chamber (9a) is also used. It is well known and any of the above forms can be added with the fan.

According to the present invention, since it is possible to arbitrarily select the feeding mode to the heater from various and careful feeding modes including the change mode, and to prevent the user from setting the timer incorrectly, various kinds of food can be obtained. It is useful as an oven toaster for cooking safely and easily to a good finish.

In addition, since it is an oven toaster that can cope with various and careful power supply modes including change modes while suppressing manufacturing costs using inexpensive and disturbance-resistant parts without using expensive parts such as microcomputers, cost performance Is also useful as a high priced product.

1 Off timer 1a control (off timer)
1a1 Scale indication section (off timer)
1b Timer body (off timer)
1c scale (off timer)
2 On timer 2a control (On timer)
2a1 Scale indication unit (On timer)
2b Timer body (On timer)
2c scale (on timer)
3 diode 4 upper heater 5 lower heater 6 thermostat 6 a knob (thermostat)
6a1 Scale indication unit (thermostat)
6b scale (thermostat)
7 Cam switch 7a knob (cam switch)
7a1 Position indication part (cam switch)
7b1 Position symbol 1 (upper and lower figures are thick lines)
7b2 Position symbol 2 (upper figure is thin line, lower figure is thick line)
7b3 Position symbol 3 (the upper figure is two-step and the lower figure is a thick line)
7c1 Contact point 1
7c2 contact 2
7c3 contact 3
7c4 contact 4
8 case 8a front opening 8b bottom opening 9 inner box 9a heating room 9b food taking out opening 9c waste dropping opening 10 door 11 food receiving 12 waste receiving 13 twin timer 13a outside knob (off timer part of twin timer)
13b Inside knob (Twin timer on timer section)
A Electric energy variable means A1 Electric energy variable means (Diode replaced by thermostat)
B power supply (external AC power supply)
L power line

Claims (3)

In an oven toaster including an upper heater and a lower heater, the upper heater includes an off timer, and an amount of power obtained by connecting a diode in parallel to an on timer having the same minimum scale position and scale interval and maximum operating time as the off timer. is series connected to the power supply via a variable unit, the lower heater, toaster oven, characterized in that the series connected to the power supply through the off-timer.   The oven toaster according to claim 1, wherein the diode is replaced by a thermostat. An off timer, an electric power variable means and an upper heater in series in this order, and the electric power variable means and the upper heater of a circuit in which a lower heater is connected in parallel to a series circuit of the electric power variable means and the upper heater The switch contact is provided between at least one of the off timer and the upper heater, between the power amount variable means and the lower heater, and between the off timer and the lower heater. The oven toaster of Claim 1 or Claim 2.

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