JPH0228328Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Purpose of the Invention] (Field of Industrial Application) The present invention relates to a roasting device such as a toaster oven equipped with an electronic timer for controlling roasting time.

(Prior Art) In a roasting apparatus such as a toaster oven, a timer is used to set the time period during which the heater is energized to an arbitrary length in order to obtain a desired degree of doneness.

Traditionally, most timers have been mechanical timers using a spring or the like, but recently electronic timers have come into use. This electronic timer uses the charging time of the capacitor, and once the doneness is set, it automatically controls the energization time to the heater according to the roasting interval (roasting room temperature) to maintain the preset doneness. It's always available.

The operating command for such an electronic timer is not a dial type like a mechanical timer, but is issued by pressing down on a lift lever. That is, by pushing down the lift lever, an interlocking switch provided inside the roaster body is turned on and an electronic timer is operated. Further, the ON operation of this interlocking switch excites the magnet and holds the lift lever in the depressed position. When the scheduled time has elapsed and the electronic timer completes timing, the power to the heater is cut off, the magnet is demagnetized, the lifting lever is released from being held, and the lifting lever is raised and returned.

(Problems to be Solved by the Invention) Due to its structure, the lifting lever is prone to loose movement due to rattling, and since this lifting lever is arranged to protrude from the surface of the roasting device, it may wobble or Shaking or shaking is not good for the product image. Therefore, there is a need for a structure that allows the lift lever to be operated smoothly and to be securely fixed in the operating position and the return position.

The present invention was devised in view of the above-mentioned problems, and it is an object of the present invention to provide a roasting device that prevents rattling of the elevator lever and enables smooth operation.

[Structure of the idea]

(Means for Solving the Problems) The roasting apparatus of the present invention has an electronic timer that controls the energization time to the heater.
A lifting platform that is movable up and down and constantly receives an upward spring force, and whose lowering operation turns on the interlocking switch for operating the electronic timer; an elevating lever that lowers the elevating platform;
The elevator platform is provided with a foot lever that engages and holds the elevator lever when the elevator lever is lowered, and releases this holding when the electronic timer completes timing, and the elevator platform controls the downward rotation of the elevator lever in a predetermined manner. It has a guide plate integrally formed with a groove-shaped locking portion that locks at an angle and prevents the lifting lever from moving loosely.

(Function) In the roasting device of the present invention, when cooking is performed using an electronic timer, the lifting lever is pushed down to lower the lifting platform against the spring force, and when the interlocking switch is turned on, the lifting lever is moved downward. Since a groove-shaped locking portion that locks the rotation at a predetermined angle is formed on the guide plate of the elevator platform, rattling of the elevator lever is prevented and the elevator lever can be operated smoothly.

(Example) The present invention will be described in detail below with reference to an example shown in the drawings.

FIG. 1 shows a toaster oven, which is an example of a roasting device. In the figure, 11 is the main body case, inside which is a roasting chamber 1 covered with a front door 12.
3 is formed. Inside the roasting chamber 13, although not shown, heaters 13a are installed above and below. Reference numeral 15 denotes a decorative panel that covers an operation section adjacent to the front door 12. 16 is a switch knob for switching the power supply to the heater 13a in the roasting chamber 13, 17 is an operation dial for a mechanical timer, 18 is a lamp cover, 19 is an operation knob for a lift lever to be described later,
20 is the electronic timer volume setting knob,
These are arranged on the decorative panel 15 as shown. In addition, 21 is the cord reel, and the main body case 1
It is provided on the side of 1.

As shown in FIG. 2, a substantially L-shaped mounting plate 23 is provided on the back side of the decorative panel 15, and various instruments described below are attached to this mounting plate 23.

The installation conditions of these are shown in Figures 3, 4, and 5 below.
This will be explained with figures.

Reference numeral 24 denotes an interlocking switch, which is installed on the horizontal mounting surface 23a of the mounting plate 23, as shown in FIG. When turned on, this interlocking switch 24 operates an electronic timer (not shown).
The interlocking switch 24 also has an actuation piece 25 extending forward (to the left in FIG. 4).

Reference numeral 27 denotes an elevating table, which is supported so as to be able to be raised and lowered by a guide pin 28 provided in the vertical direction, and is arranged so that during the lowering operation, it comes into contact with the operating piece 25 of the interlocking switch 24 to turn it on. Ru. 2
Reference numeral 9 denotes a lift lever, one end of which is rotatably attached to the lift table 27 with a rivet. Also, the other end is
Opening 3 formed in the vertical mounting portion 23b of the mounting plate 23
It protrudes to the outside through the opening of the decorative panel 15 shown in FIGS. 0 and 1, and the operating knob 19 is attached to the end thereof. A guide plate 27a is formed on the lift table 27 and has a groove-shaped locking portion 31 that locks the downward rotation of the lift lever 29 at a predetermined angle (for example, 90 degrees with respect to the lifting direction). In addition, the lower surface of the lifting platform 27 and the horizontal mounting portion 23
A spring 32 is provided between the lifting platform 27 and
It always exerts an upward spring force. Therefore, by operating the tip of the lifting lever 29 downward, the lifting table 27 is lowered against the spring 32, and the interlocking switch 24 is turned on.

Reference numeral 34 denotes a hook lever, which has a plate-shaped hook part 35 and a plate-shaped suction part 36. As shown in FIG. It is rotatably supported by a support shaft 37 provided on 23a. This hook lever 34 is set to be heavier on the suction portion 36 side (the right side in FIG. 3) with the support shaft 37 as the center, and the notch of the hook portion 35 is normally directed upward, that is, in the direction toward which the lifting lever 29 faces. It is biased so that Reference numeral 38 denotes a magnet, which is attached to the horizontal mounting surface 23 so as to face the upper surface of the suction portion 36 of the foot lever 34, as shown in FIGS. 3 and 5.
Place and fix on top a. This magnet 38 is energized by the ON operation of the interlocking switch 24, and as shown in FIG. 3, attracts and holds the attracting portion 36 of the foot lever 34 which is engaged with the elevating lever 29. Further, when the electronic timer completes timing of the scheduled time, the power supply is cut off together with the heater 13a, and the heater 13a is demagnetized.

Returning to FIG. 2, 40 is a volume board, which includes a volume 41 for setting the operating time of the electronic timer and an indicator lamp 42 that lights up while the electronic timer is operating.
is installed. As described above, since the electronic timer utilizes the charging time of the capacitor, the volume 41 is used to change the time constant and obtain a desired operating time. The actuator 43 of this volume 41 protrudes to the outside through the decorative panel 15 shown in FIG. 1, and the setting knob 20 is provided at its tip.

45 is a mechanical timer, and 46 is a power selector switch, each of which is mounted on the vertical mounting surface 2 as shown in Figure 4.
3b, and is connected to the dial 17 and knob 16 shown in FIG. The mechanical timer 45 has a bell at its rear, and a weight plate 4 is mounted on the top of the lifting platform 27 in order to ring the bell when the electronic timer completes timing.
There are 7.

The electronic timer is constructed on a printed circuit board 50, as shown in FIG. 3, and is attached to the lower surface of the main body case 11 via an insulating partition plate 51. Further, the outside thereof is covered with a cover member 52. Lead wires (not shown) from the printed circuit board 50 are introduced into the main body case 11 through a lead wire guide portion 54 integrally formed on the partition plate 51, and connected to each of the above-mentioned instruments.

In the above configuration, when cooking with an electronic timer, first turn the setting knob 20 shown in FIG.
After setting the baking time to a desired value by operating the button, push down the operating knob 19 to apply downward force to the tip of the lifting lever 29. Since the lifting lever 29 is locked at a predetermined angle with respect to the downward direction (90 degrees with respect to the lifting direction) by the locking part 31 of the lifting table 27, this downward force is transmitted to the lifting table 27, and the spring 32 The elevator platform 27 is lowered against the upward force of the controller. By lowering this lifting platform 27, the interlocking switch 2
4 is turned on, operating the electronic timer, energizing the heater provided in the roasting chamber 13, and also energizing the magnet 38 to excite it.

In addition, before the lifting platform 27 is lowered, the foot lever 34
However, due to the weight distribution described above, the hook portion 35 was biased to receive the lifting lever 29.
As the elevating lever 29 descends, it accepts this and rotates counterclockwise in FIG. 3 about the support shaft 37. For this reason, the hook portion 35 is attached to the lift lever 2 as shown in the figure.
9, and the attracting portion 36 is attracted and held by an excited magnet 38. Therefore, the lifting lever 29 and the lifting table 27 are stopped from rising.
Power continues to be supplied to the heater and magnet 38, and the electronic timer continues to clock.

When the scheduled time has elapsed and the electronic timer completes timing, the power supply to the heater and magnet 38 is cut off, and the magnet 38 is demagnetized. Therefore, the foot lever 34 rotates counterclockwise in FIG. As a result of this operation, the elevating lever 29 and the elevating table 27 are raised by the upward force exerted by the spring 32. Then, at the rising end position, the weight plate 47 attached to the lifting table 27 strikes the bell of the mechanical timer 45 to notify that the scheduled baking time has elapsed.

Here, the elevating table 27 has a locking part 31 that locks the downward rotation of the elevating lever 29 at a predetermined angle. Shaking of the lever 29 can be effectively prevented. In addition, this groove-shaped locking portion 3
Since the flat part of the guide plate 27a forming the guide plate 1 and the flat part of the hook part 35 of the hook lever 34 are always disposed close to each other and facing each other within the lifting range of the lifting table, the lifting table 27 is connected to the guide pin. The movement of rotating around the lifting platform 28 is regulated and prevented, and the lifting platform 27 is not caught in the hook portion 35 at any position, allowing smooth operation.

[Effect of idea]

As described above, according to the present invention, since the elevating lever for operating the electronic timer is located within the groove-shaped locking part, rattling of the elevating lever can be effectively prevented and smooth and reliable operation can be achieved. Can be done.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the roasting apparatus according to the present invention, Fig. 2 is an exploded perspective view of the main parts in Fig. 1, and Fig. 3 is a partially cutaway front view of the main parts in Fig. 1. , FIG. 4 is a partially cutaway side view of the same, and FIG. 5 is a partially cutaway plan view. 24... Interlocking switch, 27... Lifting platform, 27
a... Guide plate, 29... Elevating lever, 31... Locking portion, 32... Spring, 34... Foot lever.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A roasting device having an electronic timer that controls the energization time to the heater, which is installed so that it can be raised and lowered and constantly receives an upward spring force, and whose lowering operation causes the electronic timer to operate. A lifting platform that turns on an interlocking switch for
A lifting lever is rotatably attached at one end to the lifting table and lowers the lifting table by operating it downward; and when the lifting lever is lowered, the lifting lever engages and maintains that state, and operates the electronic timer. and a foot lever that releases this holding upon completion of time measurement, and the elevating platform forms a groove-shaped locking portion that locks the downward rotation of the elevating lever at a predetermined angle and prevents free movement of the elevating lever. 1. A roasting device characterized by having an integrated guide plate. (2) The elevating platform is supported so as to be movable up and down by a guide pin passing through the elevating platform in the vertical direction, and the foot lever has a flat portion formed on the hook portion that engages with the elevating lever, and a flat portion formed on the guide plate. , Claim 1 of the utility model registration, characterized in that the flat portions of the hook portion and the guide plate are always close to each other and face each other within the lifting range of the lifting platform.
Roasting equipment as described in section.