JP2008209259A - Pointer-type indicating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To readily and visually recognize pointer misalignment, overlapped by a pointer by removing its backlash. <P>SOLUTION: A pointer-type indicating device is equipped with an operation section 301; a first pointer 302 for indicating prescribed information; a first driving section 303 for rotatably driving the first pointer 302 in normal/reverse rotating directions; an indicating section (second pointer) 304 for indicating information that differs from that of the first pointer 302; a second driving section 305 for driving the indicating section 304, which is independent of the first pointer 302; and a control section 306 which executes a first drive control of driving the first driving section 303, such that the first pointer 302 is moved up to a reference position, and a second drive control of driving the first driving section 303, such that the first pointer 302 is moved from the reference position, up to a first prescribed position where the content indicated by the indicating section 304 can be recognized, and is then again moved to the reference position in the normal rotating direction, based on the operation of the operation section 301. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a pointer-type display device, and more particularly to a pointer-type display device that drives a plurality of hands with a plurality of driving means.

  2. Description of the Related Art Conventionally, in a pointer-type display device such as an analog wristwatch, for example, a rotational drive is transmitted to a gear group called a train wheel by using a driving device such as a motor. Etc. were displayed. And there is a gap (so-called play) between the gears called so-called backlash in the train wheel, and this backlash causes the state that the pointer does not point to the correct position (so-called needle deviation). It was.

  In order to remove the backlash and adjust the pointer to an accurate position, it is only necessary to rotate the pointer by a predetermined amount in either the forward rotation direction or the reverse rotation direction. In conjunction with the rotation, the gear train of the train wheel rotates and there is no play between the gears, thereby making the position indicated by the pointer accurate. For example, by removing the backlash by rotating the pointer in the forward rotation direction, there is no play between the gears in the forward rotation direction, except in a special driving state that drives the pointer in the reverse rotation direction. The pointer will point to the correct position.

  In addition to backlash, the pointer may be attached to a position shifted from the pointer shaft, or the pointer shaft may be rotated by an impact, resulting in a positional shift with respect to the needle position stored in the analog wristwatch. Therefore, whether or not the position indicated by the pointer is accurate needs to be finally confirmed visually by the deviation from the reference position.

  As a method for removing such backlash, there has conventionally been a technique of rotating the pointer once (see, for example, Patent Document 1 below).

  Further, in the pointer type display device, in order to prevent other pointers and other display parts from being obscured by rotating the pointers, the other pointers and other display parts cannot be visually recognized. Conventionally, there is a technique related to so-called needle escape that moves the needle (see, for example, Patent Documents 2 and 3 below).

Japanese Utility Model Publication No. 2-52189 JP-A-6-82272 Japanese Utility Model Publication No. 5-6393

  However, in the conventional method, when there are a plurality of pointers and backlash is removed for each of the plurality of pointers, if the plurality of pointers are moved to the same reference position, the pointers accurately position the pointers. When visually observing whether or not it is pointing, there are cases in which accurate visual inspection is not possible due to the covering of other pointers.

  In addition, if the display unit is placed near the reference position where the pointer is moved when removing the backlash, the display unit under the pointer moved to the reference position can be visually recognized as the backlash is removed. As a result, there is a problem that information may not be recognized correctly. This is particularly a problem with multi-pointer display devices such as chronographs.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a pointer-type display device that can efficiently and reliably remove backlash in order to solve the above-described problems caused by the prior art.

  In order to solve the above-described problems and achieve the object, a pointer-type display device according to the present invention includes an operating means having at least one operating member, a first pointer for displaying predetermined information, and the first First driving means for driving the pointer so as to be rotatable in the forward and reverse directions, display means for displaying information different from predetermined information displayed by the first pointer, and the first pointer; Independently, a second driving means for driving the display means, and the first driving means for moving the first pointer to a predetermined reference position based on the operation of the operating means. And the first position of the first pointer is moved from the reference position to a first predetermined position where the display content by the display means can be confirmed, and then again in the normal rotation direction. Move to Said first control means for performing a second drive control for driving the driving means so as to comprising the.

  In the pointer type display device according to the present invention, in the above invention, the control unit performs the first drive control based on the first operation by the operation unit, and the first pointer is moved to the reference position. The first drive means is driven so as to be stopped at the same time, and the second drive control is performed based on the second operation by the operation means.

  In the pointer type display device according to the present invention, in the above invention, the display means includes at least a second pointer, and the second driving means rotates the second pointer in the forward and reverse directions. Based on a first operation by the operating means, the control means moves the second pointer to the reference position and stops the second driving means to stop at the reference position. It is characterized by being driven.

  The pointer-type display device according to the present invention is characterized in that, in the above-mentioned invention, the first predetermined position is a position where the first pointer does not overlap a tip portion of the second pointer.

  In the pointer type display device according to the present invention, in the above invention, the control unit moves the second pointer in the reverse rotation direction based on the second operation by the operation unit, and then rotates in the normal rotation direction. Then, the second driving means is driven so as to be moved again to the reference position.

  In the pointer type display device according to the present invention, in the above invention, when the control means moves the first pointer and the second pointer in the reverse rotation direction, the first pointer is moved to the second position. The first driving means and the second driving means are driven so that the amount of rotation is larger than that of the pointer.

  The pointer-type display device according to the present invention is the above-described invention, wherein the control means moves the second pointer to the reference position when the control means moves again to the reference position in the forward rotation direction. The first driving means and the second driving means are driven so as to move the first pointer to the reference position.

  The pointer-type display device according to the present invention is further characterized in that, in the above-mentioned invention, the first driving means operates in a different cycle from the first pointer by the first driving means mechanically interlocking with the first pointer. The second drive control by the control means moves the first and third hands in the reverse direction and then moves them again to the reference position in the forward direction. It is control which drives the said 1st drive means, It is characterized by the above-mentioned.

  According to the present invention, it is possible to easily visually recognize the display unit that has overlapped under the pointer due to the removal of the backlash, and the pointer that can efficiently and reliably remove the backlash and visually recognize the display unit. There exists an effect that a formula display device is obtained.

  Embodiments of a pointer-type display device according to the present invention will be described below in detail with reference to the accompanying drawings.

(Appearance of pointer-type display device)
FIG. 1 is an explanatory diagram showing an example of the appearance of a pointer-type display device according to an embodiment of the present invention. In FIG. 1, the pointer-type display device is a wristwatch-type pointer-type display device (chronograph) including a main body 100 and a band (not shown) for attaching the main body 100 to an arm, for example. A crown 115 and a plurality of operation buttons 116 and 117 are provided on the outer periphery of the main body 100.

  The display part of the main body 100 includes a normal hand indicating the normal time (minute hand 101, hour hand 102, second hand 103), a plurality of analog meters (UTC meter 104, 24-hour meter 107, charging / station selection display meter 109), A mode display unit 111 and digital display units (first digital display unit 113 and second digital display unit 114) for displaying information electro-optically are provided.

  In the normal pointer, the second hand 103 rotates in a second cycle, that is, one rotation (one round) in 60 seconds. The minute hand 101 rotates in a minute cycle, that is, makes one rotation (one round) in 60 minutes. The hour hand 102 rotates at a time period, that is, makes one rotation (one turn) in 12 hours. The normal time is displayed by these hands (second hand 103, minute hand 101, hour hand 102).

  The UTC meter 104 includes a UTC minute hand 105 and a UTC hour hand 106, and displays UTC (Coordinated Universal Time (Coordinated Universal Time)). In FIG. 1, the UTC meter 104 is provided at a position near 12:00. The UTC minute hand 105 makes one rotation (one round) in 60 minutes to indicate “minute”, and the UTC hour hand 106 makes one rotation (one round) in 24 hours to indicate “hour (24 hour system)”.

  The 24-hour counter 107 includes a 24-hour hand (24H hand) 108. When the 24-hour hand 108 makes one revolution (one turn) in 24 hours, the normal time is displayed in a 24-hour system. Whether the current time is in the morning or in the afternoon according to the 24-hour counter 107 ("AM (AM)" if the 24-hour hand 108 is on the right side, "PM (PM)" if it is on the left side). I understand.

  The charging / station selection indicator 109 includes a charging / station selection hand 110. The charge / station selection hand 110 serves as both a remaining charge display (upper side) and a station selection (US, Germany, Japan) display (lower side), and both are displayed by switching. The charging / station selection indicator 109 is provided at a position around 10:00 in FIG.

  The mode display unit 111 includes a mode hand 112. The mode display unit 111 indicates that the currently displayed state is a state of various functions (modes) indicated by the mode hand 112. In FIG. 1, the mode display unit 111 is provided at a position near 6 o'clock. In FIG. 1, the mode display unit 111 indicates “time (TME)”. Further, when the operator manually rotates the mode hand 112 using the crown 115 or the like, various functions (calendar, timer, stopwatch, alarm, etc.) indicated by the mode hand 112 can be executed.

  The first digital display unit 113 is a display unit that displays an arbitrary city, and in FIG. 1, “Tokyo (TYO)” and its time “23:09:35” are shown as an arbitrary city. . In FIG. 1, the first digital display unit 113 is provided at a position around 3 o'clock to 4 o'clock. The second digital display unit 114 indicates “New York (NYC)” as the home city, that is, the city at the time indicated by the normal hand. In FIG. 1, the second digital display unit 114 is provided at a position near 9 o'clock. The arbitrary city shown on the first digital display unit 113 and the home city shown on the second digital display unit 114 can be arbitrarily changed by the crown 115 and the operation buttons 116 and 117, respectively.

(Configuration of pointer type display device)
FIG. 2 is an explanatory diagram showing a hardware configuration of the pointer-type display device according to the embodiment of the present invention. 2, the pointer-type display device main body 100 includes a microcomputer IC 200, a RAM 201, a ROM 202, a motor driving circuit 203, a motor 204 (204a, 204b, 204c, 204d), and a train wheel 205 (205a, 205b, 205c, 205d), reference signal generating unit 206, counter unit 207, antenna 208, tuning unit 209, receiving unit 210, switch unit 211, switch control circuit 212, solar cell 213, secondary battery 214, a charge control circuit 215, a liquid crystal drive circuit 216, an LED 217, an LED drive circuit 218, an alarm 219, and an alarm drive circuit 220.

  The microcomputer IC 200 controls the entirety of the pointer-type display device main body 100, and individually controls various components and circuits. The RAM 201 stores various data such as time data including time information or calendar information. The ROM 202 stores various control programs.

  The motor drive circuit 203 drives four independent motors 204 (204a, 204b, 204c, 204d), and individually drives the pointers via the train wheel 205 (205a, 205b, 205c, 205d). .

  Of the four motors 204, the first motor 204a drives the minute hand 101 and the second hand 103 shown in FIG. The second motor 204b drives the hour hand 102 and the 24-hour hand 108 of the 24-hour counter 107 shown in FIG. The third motor 204c drives the UTC minute hand 105 and the UTC hour hand 106 of the UTC meter 104 shown in FIG. The fourth motor 204 d drives the charging / station selection hand 110 of the charging / station selection display unit 109. The mode hand 112 of the mode display unit 111 is driven by a gear interlocking with the crown by manually rotating the crown 115 without driving the motor.

  The reference signal generation unit 206 is composed of, for example, an oscillation circuit, and generates a signal having a predetermined frequency serving as a reference for time measurement processing. The counter unit 207 outputs a signal having a predetermined frequency generated from the reference signal generation unit 206 to the microcomputer IC 200.

  The tuning unit 209 tunes with the antenna 208 and tunes the antenna 208 to a frequency such as 40 kHz or 60 kHz by switching the capacitance of the capacitor, for example. The receiving unit 210 includes an amplifying unit that amplifies a signal received by the antenna 208, a filter unit that removes signals other than desired frequencies (40 kHz, 60 kHz), and a detecting unit that detects the received standard radio wave. And an AD conversion unit that converts the detection output into a digital output, a gain control unit that automatically adjusts the amplification factor, and the like.

  The switch unit 211 inputs an operation instruction from the operator. Specifically, the crown 115, the operation buttons 116 and 117 shown in FIG. Based on the signal from the switch unit 211, the switch unit control circuit 212 transmits an input related to an operation instruction from the operator to the microcomputer IC 200.

  The charge control circuit 215 converts the light received by the solar cell 213 into electric power and stores it in the secondary battery 214. Further, the charging control circuit 215 has a voltage detection function for detecting the voltage (value) of the secondary battery 214, a power generation detection function for detecting whether the solar cell 213 is in a power generation state or a non-power generation state, and the like. And the signal regarding a detection result is output with respect to microcomputer IC200 by these functions. Based on this signal, the charge / station selection indicator 109 displays the remaining charge.

  The liquid crystal driving circuit 216 drives the first digital display unit 113 and the second digital display unit 114 to display various information. In addition, the LED drive circuit 218 drives the LED 217 to illuminate the digital display units 113 and 114 as a backlight and outputs warning light. Instead of the LED 217, an EL (Electroluminescence), a lamp, or the like may be used.

  The alarm driving circuit 220 drives a piezoelectric element (not shown) mounted on the alarm 219 and outputs an alarm (buzzer). At that time, the alarm drive circuit 220 changes the type, pitch, volume, etc. of the sound depending on the type of notification.

  FIG. 3 is an explanatory diagram showing a functional configuration of the pointer-type display device according to the embodiment of the present invention. 3, the operation unit 301, the first pointer 302, the first drive unit 303, the display unit (second pointer) 304, the second drive unit 305, the control unit 306, the drive information storage unit 307, The third pointer 308 is included.

  The operation unit 301 has at least one operation member. Here, the function of the operation member is realized by the switch unit 211 shown in FIG. 2, for example. More specifically, the operation members are, for example, the crown 115 and the plurality of operation buttons 116 and 117 shown in FIG.

  The first pointer 302 displays predetermined information. Specifically, the first pointer 302 may be, for example, the minute hand 101 shown in FIG. However, it is not limited to the minute hand 101. The first drive unit 303 drives the first pointer 302 so as to be rotatable in the forward and reverse directions. Specifically, the first drive unit 303 realizes its function by, for example, the motor drive circuit 203, the motor 204a, and the train wheel 205a shown in FIG.

  The display unit 304 displays information different from the predetermined information displayed by the first pointer 302. Specifically, the display unit 304 may be a second pointer such as the hour hand 102, the UTC minute hand 105, and the UTC hour hand 106 shown in FIG. However, the display unit 304 is not limited to the hour hand 102, the UTC minute hand 105, and the UTC hour hand 106. Therefore, as long as the information different from the predetermined information displayed by the first pointer 302 is displayed, not only the information displayed by the pointer but also a digital display (more specifically, for example, FIG. Information may be displayed by the first digital display portion 113, the second digital display portion 114, the LED 217 shown in FIG.

  The second drive unit 305 drives the display unit 304 independently of the first pointer 302. Specifically, the second drive unit 305 realizes its function by, for example, the motor drive circuit 203, the motor 204b, the train wheel 205b, or the motor drive circuit 203, the motor 204c, and the train wheel 205c shown in FIG. Alternatively, the function may be realized by the liquid crystal driving circuit 216, the LED driving circuit 218, or the like shown in FIG.

  The control unit 306 performs first drive control and second drive control. In the first drive control, the first drive unit 303 is driven to move the first pointer 302 to a predetermined reference position based on the operation of the operation means. Specifically, the reference position is, for example, a 12 o'clock position. The 12 o'clock position is optimal for ascertaining whether backlash has been removed. However, it is not limited to this position, and may be another position. Further, the movement to the reference position may be either the forward direction or the reverse direction.

  In the second drive control, the first pointer 302 is moved from the reference position to the first predetermined position where the display content on the display unit 304 can be confirmed, and then moved again to the reference position in the forward rotation direction. The first drive unit 303 is driven. The first pointer 302 is moved in the forward rotation direction from the first predetermined position to the reference position. As a result, backlash can be removed (the displacement of the pointer due to backlash is corrected).

  The first predetermined position may be a position where the display content by the display unit 304 can be confirmed from the reference position. Specifically, if the display content of the display unit 304 can be confirmed by the first pointer 302, It is not necessary that the display content of the display unit 304 is completely overlapped by the one pointer 302. Therefore, even if a part of the display unit 304 is overlapped by the first pointer 302, when the display content of the display unit 304 can be confirmed, the position may be set as the first predetermined position.

  For example, when the reference position is the 12 o'clock position and the display unit 304 is the UTC meter 104, the first predetermined position is the 10 o'clock position where the entire UTC meter 104 can be completely confirmed. (Refer to FIG. 6 described later). Further, in this case, considering that the UTC minute hand 105 and the UTC hour hand 106 have also moved to the 12 position, which is the reference position, the positions of the UTC minute hand 105 and the UTC hour hand 106 (both positions are 12 o'clock). It only needs to be confirmed. Therefore, in this case, the first predetermined position may be near the 11 o'clock position.

  The movement to the first predetermined position may be in either the forward direction or the reverse direction. Accordingly, when the movement is made in the forward rotation direction, the movement is then made again to the reference position in the forward rotation direction. As a result, the movement of the first pointer 302 is started from the reference position, and the first predetermined position is thus obtained. And go back to the reference position (that is, make one round). On the other hand, when moved in the reverse direction, the movement of the first pointer 302 is started in the reverse direction from the reference position, the first pointer 302 is stopped at the first predetermined position, and then in the forward direction. It will return to the reference position.

  The drive information storage unit 307 stores control information for the first drive control and the second drive control. Specifically, the drive information storage unit 307 realizes its function by, for example, the RAM 201 and the ROM 202 shown in FIG. Specifically, the control unit 306 realizes its function by, for example, the microcomputer IC 200 shown in FIG. 2 executing a program stored in the drive information storage unit 307 (RAM 201, ROM 202).

  Further, the control unit 306 performs the first drive control based on the first operation by the operation unit 301 and drives the first drive unit 303 to stop the first pointer 302 at the reference position. May be. And based on 2nd operation by the operation part 301, you may make it perform said 2nd drive control. That is, as described above, instead of moving the first pointer 302 to the reference position by one operation, subsequently moving the first pointer 302 to the first predetermined position, and moving the first pointer 302 to the reference position again, the first pointer 302 is moved. The movement to the reference position and the movement to the first predetermined position and the movement of the reference position again are performed by different operations.

  Specifically, the first operation is, for example, an operation of pulling out the crown 115 shown in FIG. The second operation is specifically an operation of pressing one of the operation buttons 116 and 117 shown in FIG. 1, for example. In this way, by performing the operation in two stages, it is possible to perform the needle alignment confirmation operation more reliably.

  Further, at that time, the display unit 304 may include at least a pointer (second pointer, hour hand 102, UTC minute hand 105, UTC hour hand 106 shown in FIG. 1). In that case, the second drive unit 305 drives the second pointer 304 so as to be rotatable in the forward and reverse directions. Then, based on the first operation by the operation unit 301, the control unit 306 moves the second pointer 304 to the reference position by normal rotation or reverse rotation, and drives the second drive unit 305 to stop at the reference position. You may make it do.

  When the display unit 304 is, the second drive unit 305 includes the motor drive circuit 203, the motor 204b, the train wheel 205b, the motor drive circuit 203, the motor 204c, and the train wheel 205c shown in FIG. Function can be realized.

  When the display unit 304 is the second pointer, the first predetermined position may be a position where the first pointer 302 does not overlap the tip of the second pointer 304. Usually, the minute hand 101 that is the first pointer 302 is longer than the hour hand 102 that is the second pointer, and the first pointer 302 covers the 304 when both hands overlap.

  In addition, the minute hand 101 as the first pointer 302 covers the UTC minute hand 105 and the UTC hour hand 106 as the second pointer. As described above, the first pointer 302 makes it impossible to visually recognize the tip of the second pointer 304. Therefore, the position where the tip portion does not overlap is, for example, a position where the tip portion of the second pointer 304 can be seen by rotating the first pointer 302 from a position where both hands completely overlap (for example, the 12 o'clock position). Good.

  More specifically, although it depends on the length and shape of each pointer, it may be a position where the first pointer 302 is moved by about 1 to 2 °. Therefore, the position where the entire second pointer 304 is completely visible is not necessarily required.

  Further, the control unit 306 moves the second pointer 304 to the second predetermined position in the reverse rotation direction based on the second operation by the operation unit 301 and then moves the second pointer 304 to the reference position again in the normal rotation direction. The second drive unit 305 may be driven. Thereby, the needle alignment can be performed in a short time and with a small driving amount.

  Then, the control unit 306 moves the first driving unit 303 and the second pointer so that the first pointer 302 has a larger turning amount than the second pointer 304 when the first pointer 302 and the second pointer 304 are moved in the reverse rotation direction. The driving unit 305 may be driven. In this way, the second pointer 304 that overlaps at the reference position can be reliably recognized.

  In addition, when the control unit 306 moves the second pointer 304 to the reference position again when moving to the reference position in the forward rotation direction, the first control unit 306 moves the first pointer 302 to the reference position. The driving unit 303 and the second driving unit 305 may be driven. In this way, first, the second pointer 304 is driven, and after the driving stops, the first pointer 302 is driven, thereby simultaneously driving the two motors (motors 204a and 204b). Generation of large driving power can be avoided as much as possible. In addition, since the pointers move with a time difference, it is possible to more surely recognize that the needles are aligned with each other than when the pointers move simultaneously.

  The third pointer 308 operates in a different cycle from the first pointer 302 by the first driving unit 303 in mechanical linkage with the first pointer 302. Specifically, the third pointer 308 may be, for example, the second hand 103 shown in FIG. As described above, the second hand 103 is mechanically interlocked with the minute hand 101 and is rotationally driven by the same motor (motor 204a) as the first drive unit 303. However, the third pointer 308 is not limited to the second hand 103.

  In the second drive control by the control unit 306, after the first pointer 302 and the third pointer 308 are moved in the reverse rotation direction, the first drive unit 303 is moved again to the reference position in the normal rotation direction. It may be a drive control. By doing in this way, a plurality of hands can be aligned simultaneously more easily using one drive unit (first drive unit 303). Further, when a plurality of second hands (hour hand 102, UTC minute hand 105, and UTC hour hand 106) are driven by a plurality of motors, the plurality of second hands may be moved with a time difference for each motor. Good.

(Operation contents of the pointer type display device)
Next, an example of the operation content of the pointer type display device will be described. FIG. 4 is a flowchart showing the contents of the operation of the pointer type display device according to the embodiment of the present invention. FIGS. 5 and 6 show the contents of the display of the pointer type display device according to the embodiment of the present invention. It is explanatory drawing shown. In FIGS. 5 and 6, the display of the hour hand 102, the 24-hour hand 107, and the charging / station selection hand 110 is omitted for convenience of explanation.

  In the flowchart of FIG. 4, it is first determined whether or not a predetermined operation (for example, pulling the crown 115) of backlash removal (needle alignment) has been performed by the operator (step S401). Here, when there is the operation after waiting for the operation (step S401: Yes), the first drive unit 303 is driven to rotate in a predetermined direction by a predetermined rotation amount, The first pointer 302 is moved to the reference position (step S402). Then, it is determined whether or not the first pointer 302 has reached the reference position (step S403). FIG. 5 shows a state in which the first hand 302, that is, the minute hand 101 has moved to the 12 o'clock position which is the reference position.

  Then, the movement continues until the first pointer 302 reaches the reference position. If the first pointer 302 has reached the reference position (step S403: Yes), the first driving unit 303 continues to rotate in a predetermined direction by a predetermined amount of rotation. Thus, the first pointer 302 is moved to the first predetermined position (step S404). Then, it is determined whether or not the first pointer 302 has reached the first predetermined position (step S405). FIG. 6 shows a state in which the first pointer 302, that is, the minute hand 101 has moved to a position near 10:00, which is the first predetermined position.

  Next, the movement continues until the first pointer 302 reaches the first predetermined position. If the first pointer 302 has reached the first predetermined position (step S405: Yes), the first drive unit 303 now rotates in the forward rotation direction by a predetermined rotation amount. The first pointer 302 is moved forward to the reference position by rotating in the direction (step S406). Then, it is determined whether or not the first pointer 302 has reached the reference position (step S407).

  Then, the movement continues until the first pointer 302 reaches the reference position. If the first pointer 302 has reached the reference position (step S407: Yes), the first driving unit 303 stops the first pointer 302 at the reference position (step S408). Then, the state shown in FIG. 5 is returned again, thereby completing a series of processes. Thereafter, the first pointer 302 is driven in the normal rotation direction from the state shown in FIG. 5 by a predetermined operation of the operator (for example, returning the pulled crown 115 to the original state). Return to the time display mode.

  In FIG. 5, as the first predetermined position, the minute hand 101 is moved to the position where the entire UTC meter 104 is completely visible, that is, the position at 10 o'clock, but the UTC minute hand 105 and the UTC hour hand 106 are also the same. In order to perform backlash removal, when it is at the reference position (12 o'clock position), a position near 11:00 to 11:00 and 12:00 may be set as the first predetermined position instead of the 10 o'clock position.

  Moreover, although the example in which the first pointer 302 that stops at the reference position and the pointer-type UTC meter 104 overlap each other is shown, the first pointer 302 that stops at the reference position, the liquid crystal display device, and the calendar display are not limited thereto. Similarly, when the date indicator under the window overlaps, while removing the backlash of the first pointer, the date indicator under the liquid crystal display device or calendar display window that is covered under the first indicator. May be visible.

  FIG. 7 is a flowchart showing the contents of another operation of the pointer type display device according to the embodiment of the present invention. In the flowchart of FIG. 7, it is first determined whether or not a predetermined operation (first operation (for example, pulling the crown 115)) of backlash removal (needle alignment) has been performed by the operator (step S701). Here, after waiting for the operation, when there is the operation (step S701: Yes), the first drive unit 303 is driven to rotate in a predetermined direction by a predetermined rotation amount. The first pointer 302 is moved to the reference position (step S702). Then, it is determined whether or not the first pointer 302 has reached the reference position (step S703).

  Next, the movement continues until the first pointer 302 reaches the reference position. If the first pointer 302 reaches the reference position (step S703: Yes), the first drive unit 303 stops the first pointer 302 at the reference position (step S704). Accordingly, as shown in FIG. 5, the first pointer 302, that is, the minute hand 101 is stopped in a state where it is moved to the 12 o'clock position which is the reference position.

  Thereafter, it is determined whether or not a predetermined operation from the operator (second operation (for example, pressing one of the operation buttons 116 and 117) is performed by the operator) (step S705). When the second operation is performed after waiting for the second operation (step S705: Yes), the process proceeds to step S404 in the flowchart of Fig. 4. Thereafter, the processing of the flowchart illustrated in Fig. 4 is performed. Since it is the same as that, its description is omitted.

  8 and 11 are flowcharts showing the contents of another operation of the pointer type display device according to the embodiment of the present invention. 9, FIG. 10-1 to FIG. 10-3, and FIG. 12 to FIG. 14 are explanatory diagrams showing the display contents of the pointer-type display device according to the embodiment of the present invention. 9, FIG. 10-1 to FIG. 10-3, and FIG. 12 to FIG. 14 omit the display of the second hand 103 and the charging / station selection hand 110 for convenience of explanation. Further, since a part of the operation in this embodiment is common to the operation in FIG. 4 and FIG. 7 in the above-described embodiment, it will be described with reference to the flowcharts in FIG. 4 and FIG.

  In the flowchart of FIG. 7, it is first determined whether or not a predetermined operation (first operation (for example, pulling the crown 115)) of backlash removal (needle alignment) has been performed by the operator (step S701). Then, the operation up to step S704 is performed, and the first hand 302, that is, the minute hand 101 is moved to the reference position and stopped from the normal state shown in FIG. This state is shown in FIG.

  Next, from the state of FIG. 10A, the motor 204b in the second drive unit 305 rotates in a predetermined direction by a predetermined rotation amount, whereby the hour hand 102 of the second pointer 304 is moved to the reference position. (Step S802). In this case, since the 24-hour hand 108 interlocked with the hour hand 102 also performs hand position alignment, not only the hour hand 102 but also the 24-hour hand 108 is moved to the reference position. Then, it is determined whether or not the hour hand 102 has reached the reference position (step S803).

  Then, the movement continues until the hour hand 102 reaches the reference position. When the hour hand 102 reaches the reference position (step S803: Yes), the second drive unit 305 stops the hour hand 102 at the reference position (step S804). Accordingly, the hour hand 102 of the second pointer 304 is stopped in a state where it is moved to the 12 o'clock position which is the reference position. This state is shown in FIG.

  Next, the motor 204c in the second drive unit 305 is driven to rotate in a predetermined direction by a predetermined rotation amount, thereby moving the UTC minute hand 105 and the UTC hour hand 106 in the second pointer 304 to the reference position. (Step S805). Then, it is determined whether or not the UTC minute hand 105 and the UTC hour hand 106 have reached the reference position (step S806).

  Then, the movement continues until the UTC minute hand 105 and the UTC hour hand 106 reach the reference position, and when they reach (Yes in Step S806), the second drive unit 305 stops the UTC minute hand 105 and the UTC hour hand 106 at the reference position. (Step S807). Accordingly, the UTC minute hand 105 and the UTC hour hand 106 of the second pointer 304 are stopped in a state where they are moved to the 12 o'clock position which is the reference position. This state is shown in FIG.

  That is, FIG. 12 shows that all the hands of the minute hand 101, the hour hand 102, the UTC minute hand 105, the UTC hour hand 106, and the 24-hour hand 108 (the second hand 103 and the charging / station selection hand 110 are not shown) are at the reference position (at 12 o'clock). The position is stopped at (position).

  Then, following step S807 in the flowchart of FIG. 8, in the flowchart of FIG. 11, first, a predetermined operation from the operator (second operation (for example, pressing one of the operation buttons 116 and 117) is performed by the operator). (Step S1101) Here, after waiting for the second operation to be performed, if the second operation is performed (step S1101: Yes), the second drive unit 305 moves the UTC minute hand 105 and the UTC hour hand 106 in the second pointer 304 in the reverse rotation direction by driving to rotate in the reverse direction by a predetermined rotation amount (step S1102), and the motor 204c. It is determined whether or not has been rotated by a predetermined amount (step S1103).

  FIG. 12 shows a state in which the UTC minute hand 105 and the UTC hour hand 106 as the second pointer are rotated by a predetermined amount, and the UTC minute hand 105 and the UTC hour hand 106 are moved. The UTC minute hand 105 moves more than the UTC hour hand 106 so that it moves at a minimum to eliminate backlash of the UTC hour hand 106.

  Next, after waiting for the second pointer 304 to rotate by a predetermined amount and then rotating by a predetermined amount (step S1103: Yes), the motor 204c rotates in the forward rotation direction by a predetermined rotation amount. By dynamically driving, the second pointer 304 is moved to the reference position (step S1104). Then, it is determined whether or not the second pointer 304 has reached the reference position (step S1105).

  Then, the movement continues until the second pointer 302 reaches the reference position. When the second pointer 302 reaches the reference position (step S1105: Yes), the second pointer 302 is stopped at the reference position, and the motor 204b in the second drive unit 305 is determined in advance. The hour hand 102 of the second pointer 304 is moved in the reverse rotation direction by being driven to rotate in the reverse rotation direction by the rotation amount (step S1106). Then, it is determined whether or not the hour hand 102 has been rotated by a predetermined amount (step S1107). FIG. 13 shows a state in which the motor 204b for driving the hour hand 102 of the second pointer is rotated by a predetermined amount, and the hour hand 102 and the 24-hour hand 108 linked thereto are moved.

  Next, after waiting for the hour hand 102 to rotate by a predetermined amount, if it rotates by a predetermined amount (step S1107: Yes), the motor 204b is now driven to rotate in the forward rotation direction by a predetermined rotation amount. Thus, the hour hand 102 is moved to the reference position (step S1108). Then, it is determined whether or not the hour hand 102 has reached the reference position (step S1109). Then, the movement continues until the hour hand 102 reaches the reference position. When the hour hand 102 has reached the reference position (step S1109: Yes), the hour hand 102 is stopped at the reference position, and the process proceeds to step S404 in the flowchart of FIG. Perform the operation.

  The subsequent steps are the same as those in the flowchart of FIG. FIG. 14 shows a state in which the minute hand 101 that is the first pointer 302 has reached the first predetermined position (see step S405). In this state, the hour hand 102 that is the second pointer 304, the UTC minute hand 105, Since the UTC hour hand 106 has already returned to the reference position, it can be visually confirmed whether or not there is a needle shift without overlapping the minute hand 101.

  Although the second hand 103 has been omitted, if the second hand 103 is thin enough that it does not substantially interfere with the visual recognition of the second pointer even if it overlaps the second pointer, for example, as shown in FIG. When the second hand 302 is moved to the first predetermined position, the second hand 103 may move to the reference position and overlap the second pointer. Further, when the second hand 103 hinders the visual recognition of the second pointer, the second hand 103 does not overlap the second pointer when the first pointer 302 moves to the first predetermined position as shown in FIG. You may make it move to a position.

  As described above, in the present embodiment, the operation unit 301 having at least one operation member, the first pointer 302 that displays predetermined information, and the first pointer 302 can be rotated in the forward and reverse directions. The first drive unit 303 that is driven in the first direction, the display unit (second pointer) 304 that displays information different from the predetermined information displayed by the first pointer 302, and the display unit independent of the first pointer 302 Based on the operation of the second drive unit 305 for driving 304 and the operation unit 301, the first drive control for driving the first drive unit 303 to move the first pointer 302 to a predetermined reference position is performed. At the same time, after the first pointer 302 is moved from the reference position to the first predetermined position where the display content on the display unit 304 can be confirmed, the first driving unit 3 is moved again to the reference position in the forward rotation direction. 3 and the control unit 306 to perform the second drive control for driving the, and a.

  Therefore, when the second drive control for removing the backlash of the first pointer 302 is performed, the first pointer 302 is retracted to a predetermined retracted position, and therefore the display content of the display unit 304 below the first pointer 302 is It is possible to confirm easily and reliably without being obstructed by the first pointer 302. Further, since the backlash of the first pointer 302 is removed when the first pointer 302 returns to the reference position, it can be accurately confirmed whether or not the first pointer 302 is not displaced from the reference position. .

  Further, in the present embodiment, the display unit 304 includes at least the second pointer 304, the second driving unit 305 drives the second pointer 304 so as to be rotatable in the forward and reverse directions, and the control unit 306 is Based on the first operation by the operation unit 301, the second pointer 304 is moved to the reference position, and the second driving unit 305 is driven to stop at the reference position. At this time, the first predetermined position is The first pointer 302 can be at a position where it does not overlap the tip of the second pointer 304.

  Further, based on the second operation by the operation unit 301, the control unit 306 moves the second pointer 304 in the reverse rotation direction and then moves the second drive unit 305 to the reference position again in the normal rotation direction. Can be driven.

  In addition, when the first pointer 302 and the second pointer 304 are moved in the reverse rotation direction, the control unit 306 causes the first driving unit 303 and the second driving unit 303 to rotate more than the second pointer 304. 2 driving unit 305 can be driven. When the first pointer 304 and the second pointer 304 are simultaneously moved in the reverse direction and returned to the reference position again, the second pointer 304 is first returned to the reference position by increasing the amount of rotation of the first pointer 304. Thus, the second pointer 304 can be visually recognized before the first pointer 304 returns to the reference position again.

  In addition, when the control unit 306 moves the second pointer 304 to the reference position again when moving to the reference position in the forward rotation direction, the first drive unit 303 moves the first pointer 302 to the reference position. In addition, the second driving unit 305 can be driven.

  Accordingly, backlash of the first pointer 302 and the second pointer 304 can be removed, and when the second pointer 304 first returns to the reference position, the second pointer 304 from which the backlash has been removed is A displacement of the second pointer 304 with respect to the reference position can be confirmed.

  In the above embodiment, the pointer-type display device described for the wristwatch (chronograph) includes all types of watches such as a wristwatch, a pocket watch, a wall clock, and a table clock. In addition, portable information terminal devices such as cameras, digital cameras, digital video cameras, game machines, mobile phones, PDAs (Personal Digital Assistants), notebook personal computers, etc., which have a pointer-type display function, and home Electronic devices including electrical appliances and automobiles may be used.

  As described above, the pointer-type display device according to the present invention is useful in a multi-pointer type timepiece such as a chronograph, and is particularly suitable for a device having a pointer-type display function in which backlash occurs.

It is explanatory drawing which shows an example of the external appearance of the pointer type display apparatus concerning embodiment of this invention. It is explanatory drawing which shows the hardware constitutions of the pointer type display apparatus concerning embodiment of this invention. It is explanatory drawing which shows the functional structure of the pointer type display apparatus concerning embodiment of this invention. It is a flowchart (the 1) which shows the content of operation | movement of the pointer type display apparatus concerning embodiment of this invention. It is explanatory drawing (the 1) which shows the content of the display of the pointer type display apparatus concerning embodiment of this invention. It is explanatory drawing (the 2) which shows the content of the display of the pointer type display apparatus concerning embodiment of this invention. It is a flowchart (the 2) which shows the content of operation | movement of the pointer type display apparatus concerning embodiment of this invention. It is a flowchart (the 3) which shows the content of operation | movement of the pointer type display apparatus concerning embodiment of this invention. It is explanatory drawing (the 3) which shows the content of the display of the pointer type display apparatus concerning embodiment of this invention. It is explanatory drawing (the 4) which shows the content of the display of the pointer type display apparatus concerning embodiment of this invention. It is explanatory drawing (the 5) which shows the content of the display of the pointer type display apparatus concerning embodiment of this invention. It is explanatory drawing (the 6) which shows the content of the display of the pointer type display apparatus concerning embodiment of this invention. It is a flowchart (the 4) which shows the content of operation | movement of the pointer type display apparatus concerning embodiment of this invention. It is explanatory drawing (the 7) which shows the content of the display of the pointer type display apparatus concerning embodiment of this invention. It is explanatory drawing (the 8) which shows the content of the display of the pointer type display apparatus concerning embodiment of this invention. It is explanatory drawing (the 9) which shows the content of the display of the pointer type display apparatus concerning embodiment of this invention.

Explanation of symbols

100 Pointer-type display (main unit)
101 Minute hand 102 Hour hand 103 Second hand 104 UTC meter 105 UTC minute hand 106 UTC hour hand 107 24 hour meter 108 24 hour hand 109 Charging / station selection indicator 110 Charging / station selection hand 111 Mode display unit 112 Mode hand 113 First liquid crystal display unit ( Optional city display)
114 Second liquid crystal display (home city display)
115 Crown 116, 117 Operation button 200 Microcomputer 201 RAM
202 ROM
DESCRIPTION OF SYMBOLS 203 Motor drive circuit 204 (204a-204d) Motor 205 (205a-205d) Train train 206 Reference signal generation part 207 Counter part 208 Antenna 211 Switch part 213 Solar cell 214 Secondary battery 216 Liquid crystal drive circuit 301 Operation part 302 First pointer 303 First drive unit 304 Display unit (second pointer)
305 Second drive unit 306 Control unit 307 Drive information storage unit 308 Third pointer

Claims (8)

Operating means having at least one operating member;
A first guideline for displaying predetermined information;
First driving means for driving the first pointer so as to be rotatable in forward and reverse directions;
Display means for displaying information different from the predetermined information displayed by the first pointer;
A second driving means for driving the display means independently of the first pointer;
Based on the operation of the operating means, a first drive control is performed to drive the first driving means so as to move the first pointer to a predetermined reference position, and the first pointer is moved to the reference position. Second drive control for driving the first drive means so as to move it again to the reference position in the forward rotation direction after moving from a reference position to a first predetermined position where the display content by the display means can be confirmed Control means for performing,
A pointer-type display device characterized by comprising: The control means includes
Based on the first operation by the operation means, the first drive control is performed, and the first drive means is driven to stop the first pointer at the reference position,
The pointer-type display device according to claim 1, wherein the second drive control is performed based on a second operation by the operation means. The display means comprises at least a second pointer,
The second driving means drives the second pointer so as to be rotatable in the forward and reverse directions,
The control means drives the second drive means to move the second pointer to the reference position and stop at the reference position based on a first operation by the operation means. The pointer type display device according to claim 2.   4. The pointer-type display device according to claim 3, wherein the first predetermined position is a position where the first pointer does not overlap a tip portion of the second pointer. 5.   The control means moves the second pointer in the reverse direction based on the second operation by the operation means, and then moves the second pointer to the reference position again in the normal direction. The pointer-type display device according to claim 3, wherein the pointer-type display device is driven.   The controller drives the first drive so that the first pointer has a larger rotation amount than the second pointer when the first pointer and the second pointer are moved in the reverse direction. The pointer-type display device according to claim 5, wherein the pointer and the second driving means are driven.   The control means moves the second pointer to the reference position and then moves the first pointer to the reference position after moving the second pointer to the reference position when moving again to the reference position in the forward rotation direction. The pointer-type display device according to claim 5 or 6, wherein one driving means and the second driving means are driven. And a third pointer that operates mechanically in conjunction with the first pointer and operates at a different period from the first pointer by the first driving means,
In the second drive control by the control means, the first drive means is configured to move the first hand and the third hand in the reverse direction and then move them again to the reference position in the normal direction. The pointer-type display device according to any one of claims 1 to 6, wherein the pointer-type display device is a control for driving the motor.

Images