JPH05189669A - Display device for operation process selection type apparatus - Google Patents

Abstract

PURPOSE:To make it possible to surely judge the advance state of each operation process after sharply reducing the numers of switches and display means in an apparatus having a format for individually executing plural operation processes and selecting each operation process prior to the start of running. CONSTITUTION:This display device is provided with plural light emitting display parts 31 to 33 for displaying each operation process selected by a pushbutton type selection switch 2, the 1st switching means 51 for switching the display part set up to a display state by the switch 2 to an infinite chain format, and a detecting means 6 for detecting the approach of an end point of each operation process and constituted so that the display part is turned to an ON/OFF state by depressing a start switch 4 and the ON/OFF interval of the display part is shortened by an output from the means 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device of an operation process selection type device, and in particular, a supply air heating control in a drying process is selected according to the amount and type of a material to be dried such as a clothes dryer. The present invention relates to a display device for displaying the operation of a device of this type.

[0002]

2. Description of the Related Art In a clothes dryer of the type in which heated air is fed into a rotary drum containing a material to be dried to dry the material to be dried such as clothes, depending on the type of the material to be dried,
In some cases, it may be necessary to dry it for a longer period of time than in the standard drying process, and in other cases, there may be many synthetic textiles such as lingerie that have insufficient heat resistance, and there may be an extremely small amount of material to be dried. In each of these cases, the control of the heating degree of the air supplied into the rotary drum and the drying end time are different.

Therefore, in this type of clothes dryer, it is necessary to separately prepare a control operation unit corresponding to each of the above cases, select the control operation unit when operating the device, and then start the operation. For this reason, the operation unit has many display functions such as a power switch, a switch unit for selecting an operation process corresponding to each control operation unit, and a display unit notifying the progress of each operation process. Also, an operating unit is required.

The present invention has been made in view of the above point, and in the above-mentioned "equipment of a type that executes a plurality of operation steps individually and selects each operation step before starting operation". It is an object of the present invention to significantly reduce the number of switches and display means, select an operating process for each, and surely determine the progress of the operating process.

[0005]

[Technical Means] A technical means of the present invention for solving the above-mentioned problems is to provide a "power switch (1) provided in an operating portion, a push-button type selection switch for selecting each operation step ( 2), a single "on" operation of the light emitting display section (31) (32), ... which displays each operation process selected by this selection switch, and the start switch (4) and the selection switch (2). Each time, a first switching means (51) for switching from a signal output state to one of the control operation units to a signal output state to another control operation unit in an infinite chain manner, and of each operation process. A detection means (6) for detecting that the end time is approaching, a first blinking signal output section (71) for outputting a first blinking signal which is activated by the output of the start switch (4) and has a long blinking interval,
A second blinking signal output section (7) which is activated by the output of the detection means (6) and outputs a second blinking signal having a short blinking interval.
2) and the output of the detection means (6), the first blinking signal output section
Second switching means (52) for switching the signal output state of (71) to the signal output state of the second blinking signal output section (72), and a start switch
The output signal of the second switching means (52) is input to the corresponding light emitting display section from the state where each output signal of the first switching means (51) is input to the corresponding light emitting display section by the output of (4). And a third switching means (8a) (8b) ... for switching to the open state, and by AND output of the output of the starting switch (4) and the output signal to each control operation part of the first switching means (51). That is, each control operation unit is made to conduct independently. ”

[0006]

The above technical means operates as follows. When the power switch (1) is turned on, any one of the light emitting display units (31), (32), ..., which has already been selected at that time, or a specific light emitting display unit is lighted. This makes it possible to know which operation process is selected at that time. To change the operation process, operate the selection switch (2). Each time this operation is performed, the first switching means (51) selects the signal circuit to the control operation section corresponding to each operation step in an endless chain, and the light emitting display section corresponding to the selected operation step is continuously turned on. It becomes a state.

As a result, a specific operation process has been selected, and when the start switch (4) is operated next, the corresponding control operation unit becomes conductive, and execution of the selected operation process is started. At the same time, the signal input to the light emitting display unit is switched from the output signal of the first switching unit (51) to the output signal of the second switching unit (52) by the third switching unit, and the corresponding light emitting display unit is in the light emitting state. However, at this point, the first blinking signal of the first blinking signal output section (71) is output from the second switching means (52), and the light emitting display section is in a light emitting state with a long blinking interval. Then, the light emitting display unit is maintained in this blinking state and the selected operation process proceeds.

When the end of this operation process is approached, the second switching means (52) is output by the output signal of the detection means (6).
Outputs the second blinking signal of the second blinking signal output unit (72), and the light emitting display unit is in a light emitting state with a short blinking interval. In this way, it is possible to determine whether or not the end of the operation process is approaching depending on the blinking speed. After that, when the operation process ends, the main parts are turned off.

The operation of each part when one operation process is selected has been described above. However, no matter which operation process is selected, the same display as described above is performed, and each light emitting display part displays the above. It changes like.

[0010]

[Effect] The minimum required power switch (1), selection switch (2), starting switch (4), and light emitting display unit in a device that selects and executes one of a plurality of operation processes (31) (32) ... It is possible to determine which operation process is selected and the progress state of this operation process only by using only (31), (32).

[0011]

Embodiments of the present invention described above will now be described in detail with reference to the drawings. This embodiment was carried out on a clothes dryer, and as shown in FIG. 1, an operation provided below a door (12) for opening and closing a clothes insertion port (11) on the front of a body (K). Power switch (1), selection switch (2), start switch on plate (10)
(4) and the light emitting display sections (31), (32) and (33) are arranged. Among them, the light emitting display unit (31) displays a standard drying process, the light emitting display unit (32) displays a careful process of drying for a sufficient time, and the light emitting display unit (33) displays lingerie or the like. Display the delicate process of drying the material to be dried, which has poor heat resistance.

When the power switch (1) is turned on, the respective parts are energized and the light emitting display part (31) corresponding to the standard drying process is in the light emitting display state at that time, and the selection switch (2) is turned on. Each operation process is selected by operation, and the light emitting display unit (32) or the light emitting display unit (3) is correspondingly selected.
3) is in the light emission display state. After that, when the start switch (4) is pressed, the first blinking signal state (for example, 1 second interval) is set, and at a certain time before the completion of drying, the second blinking signal state (for example, 0.5 second interval) is set.

In order to switch the state of the first blinking signal to the state of the second blinking signal, in this embodiment, the humidity sensor (S) equipped in the clothes dryer is in an output state when it reaches a set value. The circuit is used as the detection means (6). As shown in FIG. 2, the detection means (6) is a first input unit that receives the output of the humidity sensor (S) inserted in the exhaust duct from the rotary drum and the output of the first setting device (61a). It is composed of a comparator (61), and the set value by the first setter (61a) is the second set when the humidity of the exhaust gas of the exhaust duct corresponds to the end of drying.
It is set to a value higher than the second set value of the setter (62a) by a certain level, and the first comparator (61) outputs when the humidity of the exhaust gas falls from the high humidity state to the first set value. It is a state.

In order to end the drying process, the output of the second setting device (62) and the output of the humidity sensor (S) are compared by the second comparator (62) as shown in the same figure, and the drying end time is reached. Is obtained, and the configuration for this drying end operation is known. The display circuit shown in FIG. 3 is configured by using the above respective units. In this display circuit, the output from the counter (C) that counts the number of outputs when the selection switch (2) is turned on is input to the decoder (D). Three signal lines (D ₁ ) (D ₂ ) (D ₃ ) are drawn from this (D). When the count value of the counter (C) is "0", the signal line (D ₁ ) is in the output state, and when it is "1", the signal line (D ₁ ) is
₂ ) is in the output state, when it is "2", the signal line (D ₃ ) is in the output state, and when it is operated three times, the count value is "0",
That is, (D ₁ ) returns to the output state again.

Therefore, the counter (C) and the decoder (D)
The above combination functions as the above-mentioned first switching means (51). The circuit of the first blinking signal output section (71) includes a first oscillation circuit (73),
A first flip-flop circuit (hereinafter referred to as a first FF circuit (74)) which is in an output state when the output of the starting switch (4) is input, and a positive output of the first flip-flop circuit and an output of the first oscillating circuit (73). It is composed of the input first AND circuit (91).

On the other hand, the second blinking signal output section (72) is a second flip-flop circuit (hereinafter referred to as a second FF circuit (72) which is in an output state by the output from the second oscillator circuit (75) and the detection means (6). 76)), a second AN into which the output from the second oscillator circuit (75) and the positive output from the second FF circuit (76) are input.
Consists of a D circuit (92). The second switching means (52) is the first switching means.
The third AND circuit (93) to which the output from the AND circuit (91) and the negative output from the second FF circuit (76) are input, and this third AND circuit
It is composed of a first OR circuit (94) to which the output from (93) and the output from the second blinking signal output section (72) are input.

The third switching means (8a), (8b) and (8c) have the same structure, and the respective switching means are the fourth AND gates.
It is composed of a circuit (95), a fifth AND circuit (96), and a second OR circuit (97) which inputs these outputs and outputs them to the light emitting display section. The fourth AND circuit (95) of each third switching means (8a) has a second
The output from the switching means (52) and the output of the signal line (D ₁ ) are input, and the output of the signal line (D ₁ ) and the negative output of the second oscillation circuit (75) are input to the fifth AND circuit (96). Is entered. The fourth AND circuit (95) of the third switching means (8b) receives the output from the second switching means (52) and the output of the signal line (D ₂ ), and the fifth AND circuit (96) receives the signal line ( The output of D ₂ ) and the negative output of the second oscillator circuit (75) are input. The fourth AND circuit (95) of the third switching means (8c) receives the output from the second switching means (52) and the output of the signal line (D ₃ ), and the fifth AND circuit (96) receives the signal line ( D ₃ ) output and the second oscillator circuit (7
Negative output of 5) is input.

The output of the third switching means (8a) is input to the light emitting display section (31), the output of the third switching means (8b) is input to the light emitting display section (32), and the third switching means ( The output of 8c) is input to the light emitting display unit (33). As described above, the operation is performed as described in the above section of action. A predetermined output is input from the counter (C) to the decoder (D) by the selection switch (2),
As a result, when the standard process is selected, the signal line (D ₁ ) is in the output state. At this time, the start switch (4) is turned on.
Therefore, the negative output from the first FF circuit (74) is in the “H” state, and the output of the fifth AND circuit (96) to which the output of the first FF circuit (74) is input and the output of the signal line (D ₁ ) are input. 31) lights up. At this time, the light emitting display section (31) is in a continuous lighting state. This is the same when the elaborate process and the delicate process are selected.

Then, when the start switch (4) is pushed, the positive output of the first FF circuit (74) becomes the "H" state, and the first AND circuit
The circuit (91) outputs a combined output with the output of the first oscillation circuit (73) (H and L alternately appear in a slow cycle),
The blinking signal set by the oscillator circuit (73) is output. On the other hand, at this time, since the negative output of the second FF circuit (76) is in the "H" state, the blinking signal is output from the second switching means (52). Furthermore, since the output of the signal line (D ₁ ) is in the “H” state, the blinking signal is eventually output from the fourth AND circuit (95) as well, and the light emitting display section (3
1) will blink at the time intervals set by the first oscillating circuit (73).

After that, when the drying standard process progresses with the passage of time and the detection means (6) enters the output state, the second FF
The positive output of the circuit (76) goes into the "H" state, and this and the first FF
The combined output with the output of the circuit (74) is output from the second AND circuit (92). At this time, the negative output of the second FF circuit (76) is
Since it is in the "L" state, the third AND circuit (93) is "off", and from the first OR circuit (94), that is, from the second switching means (52), by the second oscillation circuit (75). The set blinking signal is output and the blinking state with short blinking intervals is switched.
After that, when the drying process is completed, the well-known control operation unit is activated by the output of the second comparator (62), each display output disappears, and the lighting of the light emitting display unit (31) disappears.

Although not shown, the structure for ending this drying step is the same as the conventional one, and a known structure can be adopted. In the above, the case where the standard process is selected has been described, but similarly when the other process is selected, the slow flashing state continues after the start switch (4) is pressed, and the detection means (6) Becomes a flashing state at the time when becomes an output state, and then the display output disappears.

In this embodiment, when the power switch (1) is turned on, a specific drying process (standard process) is initialized, but the control device has a memory function. Then, the drying process selected by the previous selection switch may be stored, and the previously selected drying process may be initialized when the power switch (1) is turned on. Further, at the end of each process, the display output disappears and all the light emitting display parts disappear, but at the end of the drying process, the output from the second switching means (52) is shut off and the first switching is performed. The output from the means (51) is indicated by the light emitting display section (31) (32).
.. may be input, or a special display may be performed at the end of the drying process.

Further, although the present invention is applied to the clothes dryer in this embodiment, it is needless to say that the present invention can be applied to other devices of a type in which a plurality of work steps are selected and executed.

[Brief description of drawings]

FIG. 1 is a front view of a dryer adopting an apparatus according to an embodiment of the present invention.

FIG. 2 is an explanatory view of a concrete example of a detection means (6).

FIG. 3 is an electric circuit diagram of an embodiment of the present invention.

[Explanation of symbols]

 (1): Power switch (2): Selection switch (31) (32) ...: Light emitting display (4): Start switch (51): First switching means (6): Detection means (71): First Blinking signal output section (72): Second blinking signal output section (52): Second switching means (8a) (8b): Third switching means

Front page continuation (72) Inventor Yoshimi Tsujimoto, 2-26, Fukuzumi-cho, Nakagawa-ku, Nagoya City, Rinnai Co., Ltd. (72) In-house, Kazuhiko Nagaya, 2-26, Fukuzumi-cho, Nakagawa-ku, Nagoya City, Rinnai Co., Ltd.

Claims (1)

[Claims] 1. A power switch (1) provided on the operation unit,
One push-button type selection switch (2) for selecting each operation step, a light emitting display section (31) (32) for displaying each operation step selected by this selection switch, and a start switch ( 4) and each time the selection switch (2) is “on” operated, the signal output state from one of the control operation units to the other control operation unit is infinite. A first switching means (51) for switching in a chain manner, a detection means (6) for detecting that the end time of each operation process is approaching, and an output of a start switch (4) that activates the operation and has a long blinking interval. 1st blinking signal output part (71) which outputs 1 blinking signal
And a second blinking signal output section (72) which is activated by the output of the detecting means (6) and outputs a second blinking signal having a short blinking interval, and a first blinking signal output section by the output of the detecting means (6). Second switching means (52) for switching the signal output state of (71) to the signal output state of the second blinking signal output section (72), and each of the first switching means (51) by the output of the start switch (4). Third switching means (8a) (8b) for switching from a state in which the output signal is input to the corresponding light emitting display portion to a state in which the output signal of the second switching means (52) is input to the corresponding light emitting display portion And an operation step selection formula in which each control operation part is electrically connected by an AND output of the output of the starting switch (4) and the output signal to each control operation part of the first switching means (51). Equipment display device.