JP2876306B2 - Timer device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a timer device for detecting the elapse of an arbitrarily set time and outputting a warning by at least one of a warning sound and light emission.

[0002]

2. Description of the Related Art Examples of a general-purpose timer device used in a cooking place include a timer circuit that detects the elapse of a set time and outputs an alarm activation signal, an electronic buzzer that detects and activates an alarm activation signal, and a timer. It has a liquid crystal display element for displaying the remaining time as a numerical value corresponding to the instantaneous counting state of the circuit. On the operation surface of the general-purpose timer device, a setting switch for setting a time obtained by multiplying the number of operations by a predetermined interval and a start switch for starting a timer circuit are arranged. Press the setting switch repeatedly until the value displayed on the liquid crystal display element matches the required set time, and input the set time. When the start switch is pressed after the input of the set time, a numerical value of the remaining time which is decremented from the set time is displayed on the liquid crystal display element. Then, when the value of the remaining time falls below 0, an alarm by the electronic buzzer is output.

[0003]

In the conventional general-purpose timer device, the numerical value of the liquid crystal display element is set in order to set the set time in the timer circuit except for the set time (= one operation) corresponding to the step size. It is necessary to repeatedly press the setting switch many times while observing. That is, the set time cannot be set in the timer circuit with one touch. Therefore, 1
When setting a long time, such as 0 minutes or 20 minutes, it takes a long time to perform the setting operation, which is troublesome, and hinders the original work such as cooking or forgets other work that has been performed. Or

Further, the set time set in the timer circuit is decremented at every one second clock signal as shown on the liquid crystal display element, and disappears without a trace at the same time as the time is up. Even when the set time is used repeatedly, the same number is pressed again by pressing the setting switch many times. Therefore, it is necessary for the operator to memorize the numerical value of the set time to be set in the timer circuit, or to examine the numerical value by referring to the data for each setting.
If it is necessary to adjust the set time according to the weight of the cooking material, calculation using a calculator may be necessary. As a result, it takes too much time until the start switch is pressed to activate the general-purpose timer device, and in the work performed using a plurality of general-purpose timer devices, the productivity of the original work is reduced. In addition, there is a high possibility that the setting time may be incorrectly set, or the setting may be noticed and another operation may cause an error.

[0005] Incidentally, an alarm clock or a multifunction wristwatch detects the elapse of an arbitrarily set time and notifies the operator of the alarm with an electronic buzzer. A radio with a timer or a video deck automatically detects the elapse of an arbitrarily set time and automatically starts or stops the operation of the device. However, here, the arbitrarily set time generally disappears each time, and it is necessary to re-enter the set time when setting again as a timer device.

In a home microwave oven, a plurality of set times are stored and held in a memory as data. If one of a plurality of selection switches arranged on an operation surface is selected and pressed, the corresponding time is set. The set time is called from the memory any number of times and set in the timer circuit (microcomputer).
However, the set time stored and held is usually fixed, and it is not easy to arbitrarily rewrite as needed. Therefore, it is necessary to arrange a large number of selection switches on the operation surface including the setting time that is not frequently used, and the operation surface becomes large, resulting in high cost and reduced practicality as a timer device. As the number of selection switches increases, it becomes more practical to input a value each time using a numeric key switch or the like, and the possibility of erroneously pressing the selection switch increases.

Also, referring to a home microwave oven,
Two to three selection switches may be provided to store and hold rewritable set time data corresponding to individual operation switches. For example, a numeric key switch is provided on the operation surface,
Separate set times can be arbitrarily registered corresponding to each of the two or three operation switches. However, in this case, the correspondence between the storage addresses in the memory, the individual set times, and the individual operation switches is input through the ten-key switch.
A complicated registration operation is required, and it becomes difficult to frequently rewrite the registered contents as necessary. In addition, the registered set time is stored in association with each operation switch,
New burdens are also required, such as writing on paper and attaching it to the operation switch.

[0008] Japanese Patent Publication No. 52-6590 discloses a timer device in which one can be selected from a plurality of set times arbitrarily registered in advance and set in a timer circuit with one touch. Japanese Patent Publication No. 63-8481 discloses a timer device using a microcomputer circuit. And
The registration process of arbitrarily rewriting the registered contents including the set time by operating the push buttons arranged on the operation surface, and the time counting operation of detecting the elapse of the set time with the instantaneous time display are executed by the program processing. You. However, in these timer devices, the relationship between the operation of registering the set time and the operation of selecting one of the registered set times and setting the timer circuit is not sufficiently related on the operation surface. . Therefore, there remain problems such as complicated operation and an increase in the size of the operation surface resulting in an increase in cost. The present invention
It is an object of the present invention to provide a highly practical timer device that can set an arbitrary set time through an easy and intuitive operation.

[0009]

According to a first aspect of the present invention, there is provided a timer circuit for detecting the elapse of a set time and outputting an alarm activation signal, and detecting at least one of an alarm sound and light emission upon detecting the alarm activation signal. Output means for outputting an alarm; storage means for storing and holding a plurality of arbitrarily set times until next rewriting; and one for the operation surface in correspondence with the plurality of stored times. A plurality of selection switches which are arranged and operated in common when setting the timer circuit and when rewriting a set time stored and held, and arbitrarily select one from a plurality of set times; A start switch that is operated after the selection of the set time by the switch to start the timer circuit, and from the operation of the selection switch to the operation of the start switch. A timer device having display means for displaying the remaining time corresponding to the elapsed time as an instantaneous count value of the timer circuit after the start switch is operated, while continuously displaying the selected set time. Two setting switches having different step widths and a total time obtained by multiplying the number of times of each operation, and a setting selected corresponding to the selection switch by being operated following the operation of the selection switch. A set switch that enables rewriting of time, wherein the display means includes:
While the selected set time is continuously displayed until the set switch is operated, the total time is displayed each time the set switch is operated after the set switch is operated.

[0010]

According to the timer device of the first aspect, when the timer circuit detects the elapse of the set time selected by the operator operating the setting means, an alarm by at least one of a warning sound and light emission is output through the output means. The operator can rewrite the plurality of set times registered in the storage means to arbitrary numerical values. By performing an operation on the operation surface intuitively associated with one set time rewriting operation, the operator can call up the set time from the storage means and set it in the timer circuit. For example, a selection switch for calling the same set time is arranged adjacent to a selection switch for selecting one set time for a rewriting operation. The operation of registering one set time and the operation of calling it are intuitively associated by a common selection switch. By selecting and operating one of a plurality of selection switches, a common one required for rewriting or setting is selected from a plurality of setting times. According to the timer device of the first aspect, since the set time is displayed on the display means immediately after selecting one set time by operating the selection switch, the appropriateness of the set time is confirmed through the display means before operating the start switch. it can. After the start switch is operated to activate the timer device, the remaining time can be constantly checked through the display means. In the timer device according to the first aspect, the set time is registered by using two or more setting switches whose time interval is different in length from one another, so that the long set time can be achieved with a small number of operations by the long interval switch. By using a setting switch with a short interval, a setting time with high resolution (high accuracy) can be registered. Then, by looking at the set time displayed after the operation of the selection switch, it is possible to determine whether or not to operate the set switch (rewrite this set time). After operating the set switch, it is only necessary to operate the setting switch until the numerical value displayed on the display element becomes a desired numerical value. Therefore, it is not necessary to memorize how many times each of the two setting switches is operated. .

A plurality of timer devices connected in a horizontal direction by a support frame are attached to a wall or the like, and any one of the set times obtained by multiplying the number of set times that can be stored and held by each timer device by the number of connections is used. Individuals may be selected. Two timer devices may be run in parallel to simultaneously execute time counting by two types of set times. When the set time is up, both the electronic buzzer and the light emitting diode may be activated to draw the operator's attention. The relatively high power consumption of the electronic buzzer reliably draws the operator's attention, and the relatively low power consumption of the light emitting diode ensures that the timer device that has timed up from the adjacent timer device. Even if you do not have the timer device in your field of view, you can instantly recognize the time-up by the alarm of the electronic buzzer if it is within the reach of the sound, and if you pay attention to the timer device, which timer device will time-up due to the blinking of the light emitting diode You can judge instantly. By continuing the blinking of the light emitting diode even after the automatic stop of the electronic buzzer, it is possible to avoid time-up of an adjacent timer device and confusion with an inactive device. By stopping the electronic buzzer, which consumes a relatively large amount of power, in a short time, the total power consumption is saved. When a plurality of timer devices are connected in a horizontal direction by a support frame, all the selection switches are arranged in a horizontal line, and all display means are arranged on a row of the selection switches, a selection switch of one timer device. Is intuitively associated with the display contents of the display means, confusion with an adjacent timer device (operation error, etc.) is avoided, and one selection switch corresponding to a required set time can be efficiently set. You can select and operate without mistake. In addition, since the display means of one timer device and the plurality of selection switches are vertically adjacent to each other and intuitively compared with each other, 2
When using more than one unit of the timer device at the same time, the selection switch can be selected without fail in correspondence with the display content of the display means.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A timer device according to an embodiment will be described with reference to FIGS. FIG. 1 is a front view of a timer device,
FIG. 2 is a circuit diagram of the timer device, FIGS. 3 and 4 are flowcharts of the operation of the timer device, and FIG. 5 is a diagram illustrating a state in which a plurality of timer devices are mounted on a mounting frame.

As shown in FIG. 1, the timer device 10 comprises:
It has a small plate-like appearance with a length of 65 mm, a width of 80 mm, and a thickness of 10 mm. An operation surface 10 is provided on the front side of the timer device 10.
A is set, and necessary switches and elements are arranged collectively. A three-digit liquid crystal display element 11 is provided above the operation surface 10A.
A, 11B and 11C are arranged. Liquid crystal display element 11A
Indicates a numerical value in units of minutes, the liquid crystal display element 11B displays numerical values in units of 10 seconds, and the liquid crystal display element 11C displays numerical values in units of seconds. Below the operation surface 10A, three selection switches 12A, 12
In addition to B and 12C, a start switch 13, a set switch 14, and a reset switch 15 are arranged. At the top of the operation surface 10A, a light emitting diode element 16 for notifying the time-up by blinking is arranged. An electronic buzzer 17 is disposed on the back side of the upper part of the operation surface 10A in a state of being stored in the case of the timer device 10 and being waterproof.

The timer device 10, as shown in FIG.
A timer circuit using a one-chip microcomputer is built in. When the elapse of a set time is detected, the operator is notified by blinking of the light emitting diode element 16 and alarm of the electronic buzzer 17. The volume of the electronic buzzer 17 can be switched in two stages, and the alarm stops for one minute. Since the flashing of the light emitting diode element 16 continues even after the alarm stops,
The time-up of the timer device 10 can be visually recognized even from a distance. Flashing of light emitting diode element 16 and electronic buzzer 17
Is released by pressing the reset switch 15, and the functions and display contents of the timer device 10 are returned to the initial state.

The operator selects the selection switches 12A, 12B,
A required one is called out of the three set times registered in advance in the timer device 10 corresponding to 12C, and is set in the timer circuit. When one of the selection switches 12A, 12B, 12C corresponding to the required set time is selected and pressed, the set time is set to the liquid crystal display elements 11A, 11B, 11C.
It is displayed on C. If the start switch 13 is pressed in this state, the timer circuit is started and the liquid crystal display element 11A,
The remaining time is displayed at 11B and 11C. Then, after the set time has elapsed, the liquid crystal display elements 11A, 11B,
When the numerical value displayed on 11C reaches 0, blinking of the light emitting diode element 16 and alarm output of the electronic buzzer 17 are started.

The three selection switches 12A, 12B, 12
C is commonly used in the setting time registration operation in addition to the setting time selection operation described above. Select switch 11A
The set time registered after pressing (11B or 11C) is immediately set in the timer circuit by pressing the selection switch 11A (11B or 11C) as described above. The selection switches 12A and 12B also serve as setting switches for registering the set time, and the selection switches 11C
Is also used as a rewrite command switch when registering a new set time.

First, the selection switches 12A, 12B, 12
By pressing any one of C, a set time to be rewritten is selected. Then, the liquid crystal display elements 11A and 11A
This set time is displayed on B and 11C. When the set switch 14 is pressed in this state, the liquid crystal display elements 11A, 11A
The values of B and 11C are reset to 0 minutes and 0 seconds, and the timer circuit enters a mode in which the set time is rewritten. After the set switch 14 is pressed, each time the selection switch 12A is pressed once, the value of the liquid crystal display element 11A increases by one minute, and each time the selection switch 12B is pressed once, the value of the liquid crystal display element 11B is 10 seconds. Increase in increments. That is, the total time of the time obtained by multiplying the number of operations of the selection switch 12A by the minute and the time obtained by multiplying the number of operations of the selection switch 12B by 10 seconds is displayed on the liquid crystal display elements 11A, 11B, and 11C.

In the state where the numerical values of the set times required for the liquid crystal display elements 11A, 11B and 11C are formed, the selection switch 12
When C is pressed, as a new set time corresponding to the selection switch 12A (or 12B, 12C) selected first,
The formed numerical value is stored and stored (registered) by replacing the original numerical value. For example, after the selection switch 12A and the set switch 14 are sequentially pressed, the selection switch 12A is
When the selection switch 12B is pressed three times (in any order), a numerical value of 2 minutes and 30 seconds is displayed on the liquid crystal display elements 11A, 11B, and 11C. When the selection switch 12C is pressed in this state,
The value of the original set time corresponding to the selection switch 12A is lost, and at the same time, 2/3
0 seconds is newly stored and held.

As shown in FIG. 2, the timer circuit of the timer device 10 has a single-chip microcomputer 23.
The numerical display contents of the three-digit liquid crystal display elements 11A, 11B, and 11C are controlled by a single-chip microcomputer 23 via an LCD driver 22. The LCD driving oscillator 21 generates a frequency signal necessary for the operation of the liquid crystal display elements 11A, 11B, 11C. Select switches 12A, 12B,
12C, set switch 14, start switch 13,
And the reset switch 15 are connected such that the corresponding input terminal becomes L level when turned on. The single-chip microcomputer 23 processes the input so that the input terminal of the switch that has been turned on continues to be turned on until the next switch is turned on for the sake of the flowcharts of FIGS.

Each output terminal of the single-chip microcomputer 23 has a built-in simple driver circuit, and can directly drive a load having a considerable current level. A light emitting diode 16 and an electronic buzzer 17 are connected to the two output terminals via respective current limiting resistors. The light emitting diode 16 emits light when the corresponding output terminal is at the L level. The electronic buzzer 17 is driven by a square wave of several hundred Hz that is output intermittently to a corresponding output terminal. The lithium battery 25 is a single-chip microcomputer 2
3. In addition to the light emitting diode 16 and the electronic buzzer 17, power is also supplied to the liquid crystal display elements 11A, 11B, 11C and the like.

The single-chip microcomputer 23 is a semiconductor element in which necessary elements such as an arithmetic element, a RAM, a ROM, a power supply circuit, an oscillator and the like are formed in one chip, and a necessary processing program is written through a write terminal (not shown). I have. The timer device 10 is controlled according to the flowcharts shown in FIGS.
A set time is registered, one of the registered set times is selected, a timer is run according to the selected set time, and an alarm is issued in response to the time up.

As shown in FIG. 3, in step 111,
It is determined whether or not the selection switch 12A has been turned ON.
When the selection switch 12A is turned on, the process proceeds to step 112, where the set time data D corresponding to the selection switch 12A
1 is read out and the numerical values are read out from the liquid crystal display elements 11A, 11A.
B, 11C. In step 113, it is determined whether or not the set switch 14 has been turned ON. When the set switch 14 is turned on, the flow proceeds to steps 126 to 131. In step 116, the selection switch 12B
Is turned on. Selection switch 12B
Is turned on, the routine proceeds to step 117, where the numerical value of the set time data D2 corresponding to the selection switch 12B is displayed on the liquid crystal display elements 11A, 11B, 11C. In step 118, it is determined whether or not the set switch 14 has been turned ON. When the set switch 14 is turned on, the flow proceeds to steps 126 to 131.

In step 121, it is determined whether or not the selection switch 12C has been turned ON. When the selection switch 12C is turned on, the process proceeds to step 122, where the selection switch 1
The numerical value of the set time data D3 corresponding to 2A is displayed on the liquid crystal display elements 11A, 11B, 11C. Step 1
At 23, it is determined whether or not the set switch 14 has been turned ON. When the set switch 14 is turned on, the flow proceeds to steps 126 to 131.

Steps 111, 116, and 12 are performed until one of the selection switches 12A, 12B, and 12C is turned on.
Step 1 is repeated. Selection switches 12A, 12
When the set switch 14 is turned on after one of B and 12C is turned on, the flow proceeds to steps 126 to 131 to select the data D1 (or D2, D3).
Is rewritten. However, the start switch 13
Is turned on, the flow proceeds to steps 133 to 137, and the time count is executed.

That is, in step 132, it is determined whether or not the start switch 13 has been turned on. If not, the process returns to step 111. On the other hand, when the start switch 13 is turned on, the process proceeds to step 133 to start time counting, and the liquid crystal display elements 11A, 11B, 1
1C is the data D1 (or D2, D2
The value of 3) is counted down by one every second. At step 134, it is determined whether or not the time is up. As a result of the countdown in step 133, it is determined that the time is up one second after the numerical value displayed on the liquid crystal display elements 11A, 11B, and 11C becomes 0:00, and the process proceeds to step 135, where the light emitting diode 16 blinks and the electronic device is turned off. The alarm by the buzzer 17 is started. At step 136, it is determined whether or not one minute has elapsed after the time-up.
When one minute has elapsed, the process proceeds to step 137 and the electronic buzzer 1
7 is turned off, but the light emitting diode 16 continues to blink.

On the other hand, if the ON of the set switch 14 is identified in any of the steps 113, 118 and 123, a new set time is formed in steps 126 to 130. Until the ON of the selection switch 12C is identified in the step 130, every time the ON of the selection switch 12A is detected in the step 126, the number of operations (minutes) is added in the step 127, and the ON of the operation switch 12B is detected in the step 128. In step 129, the number of operations (10 seconds) is added every time. Then, in step 131, the selection switch 12
When C is turned on, the liquid crystal display elements 11A, 11B, 1
The numerical value displayed in 1C is the data D1 (or D1) selected in step 114 (or 119, 124).
2, D3) is stored in place of the original numerical value.

FIG. 4 shows a flow relating to the reset of the timer device 10. This flow is executed periodically by interrupting the processing of the flowchart shown in FIG. In step 141, it is determined whether or not the reset switch 15 has been turned ON. When the reset switch 15 is turned on, the routine proceeds to step 142, where the functions of the timer device 10 (time count, alarm, display of numerical values, etc.) are reset. The registered three set times are kept as they are.

In the timer device 10 of the embodiment, if three types of set times that are frequently used are registered, any set time can be set to one-touch and time counting can be started immediately. Further, since one timer circuit can use three types of set times, the number of timer circuits can be reduced as compared with a case where a timer circuit is provided for each set time. And
If a frequently used setting time is added, a new setting time can be easily registered by replacing the setting time with a less frequently used setting time.

The operation of registering the set time and the operation of setting it in the timer circuit are performed by a common selection switch 12A,
12B, 12C, the selection switches 12A, 12B, 12C
It is easy to remember the set time corresponding to, and it is possible to intuitively avoid setting the wrong set time. Also, the liquid crystal display element 11
The next time count or rewrite registration can be started from the state where the set time is displayed and confirmed on A, 11B, 11C, so that an erroneous operation of setting an incorrect set time or rewriting a frequently used set time can be prevented. Can be avoided.

In this embodiment, the flowcharts shown in FIGS. 3 and 4 are used. However, according to the convenience of the single-chip microcomputer 23 and various switches, a flow for executing more processes in parallel (multitask processing) ) May be adopted. Further, by pressing the start switch 13 in a state where an appropriate set time is displayed on the liquid crystal display element 12C through the operation of the setting switches 12A and 12B, the numerical value is set as the set time without changing the registered set time. A function of activating the timer circuit may be added.

Incidentally, the timer device 10 of the embodiment is
It can be used for a wide range of purposes such as fixing it to various frames or devices with screws, or fixing it directly to a wall surface using a hook-and-loop fastener (magic tape). Then, as shown in FIG. 5, three or more timer devices 10 may be inserted into the common support frame 31 and connected and installed in the horizontal direction. The support frame 31 is fixed to a wall surface in advance using a screw hole 32 on the back surface, and the timer device 10 is mounted by sliding horizontally along the support frame 31. In addition, the support frame 3
1 may be set to a length of 1 m or more, and the timer device 10 may be slid to an arbitrary position for use. At this time, as shown in FIG.
B and 12C are arranged horizontally across the operation surface 10A, so that the setting switches 12 of the three timer devices 10
A total of 12 A, 12B and 12C are arranged in a horizontal straight line.
Therefore, the setting time can be selected and used in 12 ways, and the registration and setting of each setting time can be surely and promptly executed.

Further, since the alarm by the electronic buzzer 17 is stopped in one minute, when one of the plurality of electronic buzzers 17 is sounding, one of the time-outs is missed, or the electronic buzzer 17 continues to sound, wasting the capacity of the battery 25. Is avoided. In addition, since the light-emitting diode 16 keeps blinking even after the alarm of the electronic buzzer 17 is stopped, it is possible to reliably confirm which one of the three timer devices 10 has timed up from a distance.

[0033]

According to the first aspect of the present invention, the operation of newly registering one set time and the operation of calling and setting it in the timer circuit are associated on the operation surface.
The new setting time can be learned through the operation of newly registering, and the situation that the wrong setting time is set in the timer circuit by the confirmation with reference to the memory (in the sense of the old original setting time) is avoided. Since the operation of newly registering one set time and the operation of calling and setting the same in the timer circuit include the operation of a common selection switch, the new set time can be more reliably learned through the operation of newly registering.
The time count is started after the set time called by the selection switch is visually recognized on the display means, so that when the wrong set time is selected, the user can immediately notice and correct the set time. Since two or more setting switches having different time intervals are used, a long setting time with high resolution can be set in a short time (small number of operations). Further, since the set time to be rewritten is visually recognized on the display means, the set time is rewritten. Therefore, if the user tries to rewrite the set time to be left by mistake, the user can immediately notice the change and change the set time to the correct set time.

[Brief description of the drawings]

FIG. 1 is a front view of a timer device according to an embodiment.

FIG. 2 is a circuit diagram of a timer device according to the embodiment.

FIG. 3 is a flowchart of an operation of the timer device.

FIG. 4 is a flowchart of a reset operation.

FIG. 5 is an explanatory diagram of a state in which a plurality of timer devices are mounted on a mounting frame.

[Description of sign]

 DESCRIPTION OF SYMBOLS 10 Timer device 10A Operation surface 11A, 11A, 11C Liquid crystal display element 12A, 12B, 12C Selection switch 13 Start switch 14 Set switch 15 Reset switch 16 Light emitting diode 17 Electronic buzzer 21 LCD driving oscillator 22 LCD driver 23 Single chip microcomputer 25 Lithium battery

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-59-16239 (JP, A) JP-A 62-55195 (JP, U) JP-A-4-38592 (JP, U) JP 4-96 29436 (JP, Y2) (58) Field surveyed (Int. Cl. ⁶ , DB name) G04F 3/00 301

Claims (4)

(57) [Claims] A timer circuit for detecting an elapse of a set time and outputting an alarm activation signal; an output means for detecting the alarm activation signal and outputting an alarm by at least one of a warning sound and light emission; Storage means for storing and storing the plurality of set times until they are rewritten next time, and one on the operation surface corresponding to the plurality of stored set times.
A plurality of selection switches which are arranged one by one, are operated in common when setting the timer circuit and rewriting the set time stored and held, and arbitrarily select one from a plurality of set times; A start switch that is operated after the selection of the set time by the selection switch to start the timer circuit, and from the operation of the selection switch to the operation of the start switch, the selected set time is continuously displayed, while the start switch is And a display device for displaying the remaining time corresponding to the elapsed time as an instantaneous count value of the timer circuit after being operated, wherein the time interval is different, and the total time multiplied by the number of times of each operation is different. By operating the two setting switches to be set and subsequent to the operation of the selection switch, the selection switch is operated. A set switch that enables rewriting of the set time selected corresponding to the switch, wherein the display unit continues to display the selected set time until the set switch is operated, The timer device displays the total time each time the setting switch is operated after the switch is operated. 2. A timer device which detects an elapse of a set time and outputs an alarm activation signal by selecting an arbitrary one from a plurality of set times registered in advance. A plurality of selection switches respectively arranged on the operation surface corresponding to a plurality of set times, and a corresponding one when one of the plurality of selection switches is operated.
Display means for displaying the number of set times, and when an operation of starting setting is performed following the operation of the selection switch, a different selection switch is set until the setting operation of the set time corresponding to the selection switch is completed. The timer device is characterized in that the set time registered in the timer circuit is not changed even if the user operates. 3. A timer device which can select and set an arbitrary one of a plurality of set times registered in advance in a timer circuit which detects the elapse of the set time and outputs an alarm activation signal. A plurality of selection switches arranged on the operation surface corresponding to a plurality of set times, respectively, and a corresponding one of the plurality of selection switches when one of the plurality of selection switches is operated.
Display means for displaying the number of set times, and two setting switches for changing the set time displayed on the display means at different intervals of time. When one of the setting switches is operated once, And a set time displayed on the display means is increased by the step size. 4. The timer device according to claim 2, wherein when the selector switch is operated subsequent to the operation of the selection switch, the timer circuit starts time counting and the set time displayed on the display means starts to be reduced. A switch circuit, wherein the display means keeps displaying a set time corresponding to the lastly operated selection switch until the start switch is operated, during which the timer circuit is operated only by successive operation of different selection switches. A timer device capable of changing a set time set in the timer.