JPH0625783U - Electronic watch with meter function - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention improves the display system of an electronic watch with a meter function. [Structure] A depth scale portion 3a of a dial plate 3 is provided with a one-to-one correspondence between a time scale and a meter scale in a constant angle range from a reference position, and in a range beyond the constant angle range, The meter scale is graduated to correspond to a multiple of the time scale. [Effect] The display range can be expanded while maintaining the resolution with the time scale dual-purpose system.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a display system of an electronic watch with a meter function having a function mode.

[0002]

[Prior art]

 In recent years, an electronic watch with a meter function, which has a meter function such as a water depth meter, using a plurality of motors is being developed. In the electronic mode with the meter function, there are two methods of marking the scale of the meter, one is to use the time scale of the clock as it is, and the other is to provide a scale on the circumference separately from the time scale. However, in the conventional method that also uses the above time scale, 60 m divisions corresponding to the time minutes are used with 1 m scale for 1 m and 60 m in total.

[0003]

[Problems to be solved by the device]

 The system in which the circle is divided into 60 equal divisions according to the minute scale of the clock corresponds to the minutes of a clock that is commonly used, so it is very easy to read. However, in this method, if the resolution of one scale is taken finely, for example, 1 m, the display range can be only up to 60 m, and if the scale is set to 5 m to expand the display range, the display range is 300 m. Can be extended, but it has the drawback of degrading reading accuracy. In addition, the independent method that does not use the time scale also has a structural problem that a new scale is provided on the dial, and there is a problem that it is difficult to read with multiple scales.

An object of the present invention is to solve the above-mentioned drawbacks, and to provide an electronic timepiece with a meter function in which the display range is expanded while maintaining the resolution by a system that also serves as a time scale.

[0005]

Means for Solving the Problems The structure of the present invention for achieving the above object is as follows. In an electronic timepiece with a meter function that also uses the dial of the pointer type electronic timepiece as a dial and displays the meter, the time scale and the scale of the meter have a one-to-one correspondence within a certain angle range from the reference position of the scale on the dial. In the dial range which is provided corresponding to the above, the meter scale is calibrated in multiples with respect to the time scale.

[0006]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 2 is a plan view showing an embodiment of a pointer-type timepiece with a water depth gauge according to the present invention. Reference numeral 1 is a clock with a depth gauge, and 2 is a register ring in which the minute display scale is engraved on the ring. Reference numeral 3 denotes a dial, and the depth scale portion 3a of the dial 3 is engraved in increments of 1 minute up to the 30-minute position and in multiples from the 30-minute position to the 55-minute position. In addition, the display unit of the water depth meter to be described later is 1 m per 1 minute scale, 1 m from 0 m to 30 m, 2 m from 30 m to 80 m, and a small scale is provided between 1 min scale from 30 m to 80 m. This is a display method that enables reading in 1-m increments. Furthermore, numerical values are engraved on the display scale positions corresponding to the 3 m, 6 m, and 9 m positions so that the depth gauge can be read easily. The display of the water depth on the dial 3 is a display area from the 12 o'clock position (0 m scale position) to the 55 min scale position (80 m scale position), and the hour hand 4 and the minute hand 5 are located at the center of the dial plate 3. A time display hand of the second hand 6, a function indicating hand 7 and a depth hand 8 are provided.

The hour hand 4, minute hand 5, second hand 6, function indicating hand 7, and depth hand 8 are configured to be driven by different motors. Reference numerals 11, 12, and 13 are push buttons, and 14 is a crown, all of which constitute an external operating member for correction. The push button 11 is a function mode switching button for switching and designating the time mode, the alarm time setting mode, and the water depth measuring mode. By operating the push button 11, the function indicating needle 7 indicates the alarm setting position and the water depth measuring mode. Instruct to switch to the "12:00 (0m)" position.

The push buttons 12 and 13 are external operation members for performing the function operation in each function mode, and the alarm set value can be set to forward and reverse by operating the push buttons 12 and 13 in the alarm time set mode state. , When the time set by this alarm set matches the set alarm set value, an alarm is issued. The crown 14 mechanically corrects the time with the calendar by pulling in 1st step and by pulling in 2nd step. In the normal state, the crown is in the 0-step pulling position.

FIG. 3 is a block diagram showing a basic configuration of the timepiece 1 with a water depth gauge shown in FIG. Reference numeral 20 denotes a microcomputer unit, which basically includes a CPU 20a, a RAM 20b, and a ROM 20c. A program for controlling the CPU 20a is written in the ROM 20c, and the CPU 20a deals with information from the switch block 23 described later according to the program, and exchanges information with the nonvolatile memory 29 described later or the RAM 20b. An arithmetic operation is performed while exchanging data, and an operation signal is output to motors 25, 26 and 27 described later according to the processed data as needed. A non-volatile memory 29 stores reference values (0 m, 50 m) for calculating the water depth value. Reference numeral 21 denotes a water pressure sensor made of a diaphragm type semiconductor, which outputs an electric sensor signal in response to fluctuations in water pressure. Reference numeral 22 denotes a water pressure measuring circuit, which is composed of a well-known amplifier circuit and an AD conversion circuit, receives the sensor signal from the water pressure sensor 21 and outputs water depth information Ps. Reference numeral 24 is a crystal oscillator for generating a clock signal, 23 is a switch block, and the switch block 23 is composed of switches controlled by push buttons 11, 12, 13 and crown 14 shown in FIG.

Reference numerals 25, 26, and 27 denote motors. The motor 25 is a time display device 30 in which the hour hand 4, the minute hand 5, and the second hand 6 are interlocked, the motor 26 is the function indicating hand 7, and the motor 27 is the depth hand. Each of the water depth display devices 31 composed of 8 is independently driven. Reference numeral 28 denotes a buzzer, which notifies an alarm when the alarm set value set in the alarm time setting mode state is reached.

FIG. 1 is a flow chart showing the operation of the timepiece 1 with a water depth gauge shown in FIG. 3 in the water depth measurement mode. First, the push button 11 which is the function mode switching button is operated to specify the water depth mode (step S1). When the water depth mode is designated, the microcomputer 20 turns on the water pressure measurement circuit 22 and starts water depth measurement (step S2). This water depth measurement is performed by the microcomputer unit 20 at regular time intervals, the water depth information Ps obtained by A / D converting the sensor signal from the water pressure sensor 21 is input to calculate the water depth value, and the water depth value is larger or smaller than 30 meters. The water depth judgment (step 3) is performed, and when the condition of YES is satisfied, the water depth hand movement pulse Psd for moving the water to a position (water depth value −30 m + 60 STEP) displaying a water depth value of 30 meters or more is calculated (step S4). When the condition of NO is satisfied in the above (step S3), the water depth movement pulse Psd is calculated (step S5) in order to move the water to a position (water depth value x 2STEP) where the water depth value of 30 meters or less is displayed, and the water depth hand drive is performed. The operation proceeds to the motor operating state (step S6), and the water depth movement pulse Psd calculated in step S4 and step 5 is output to the motor 27. As a result, the motor 26 is driven by the water depth movement pulse Psd, and the water depth is displayed on the water depth display device 31 (step S7), whereby one measurement operation is completed. The water depth measurement is repeated according to the same flow.

[0012]

[Effect of device]

 As is clear from the above description, the present invention is an electronic instrument with a meter function that solves the structural defect that a new scale is provided on the dial because the display range can be expanded while maintaining the resolution with the time scale dual function system. A clock can be provided.

[Brief description of drawings]

FIG. 1 is a flowchart showing an operation in a water depth measurement mode of the present invention.

FIG. 2 is a plan view showing an embodiment of a timepiece with a meter function of the present invention.

FIG. 3 is a block diagram showing a basic configuration of a timepiece with a meter function of the present invention.

FIG. 4 is a display example of a water depth value measured by the timepiece with a meter function of the present invention, in which 21 m is shown by a solid line of the depth hand 8 and 55 m is shown by a dotted line of the depth hand 8.

[Explanation of symbols]

 1 Clock with Water Depth Function 3a Depth Scale 6 Second Hand 7 Depth Hand 20 Microcomputer 21 Water Pressure Sensor 25, 26, 27 Motor 31 Water Depth Display Device

Claims (1)

[Scope of utility model registration request] In an electronic timepiece with a meter function, which also uses the dial of a pointer type electronic timepiece as a dial and performs meter display, the time scale and the meter scale are in a one-to-one correspondence within a certain angle range from the reference position of the scale on the dial. The electronic timepiece with a meter function, which is provided corresponding to, and in which the meter scale is graduated to correspond to a multiple of the time scale in the dial range that has passed the certain angle.