JP3152343B2 - Multi-display instrument - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indicating instrument for a vehicle, and more particularly to a multi-display instrument for indicating a plurality of measured quantities in an automobile, such as an engine speed and a remaining fuel amount, with a single pointer.

[0002]

2. Description of the Related Art In general, a combination meter is provided in a driver's seat of a vehicle. In the combination meter, a speedometer, an engine tachometer, a fuel gauge,
Instruments such as a radiator water thermometer are provided. The size of each of the above-mentioned instruments may differ depending on the individual importance, laws and regulations governing the constant display of speed, design appearance, etc. They were arranged independently in the combination meter.

However, in order to arrange each instrument independently in the limited space in the combination meter, it is necessary to give a command to the size of the dial of each instrument or to make the dial to some extent. There is a problem that it is necessary to take measures such as restricting the size of the instrument, and it is necessary to provide an individual pointer driving source for each instrument. Therefore, conventionally, except for the speedometer which is always required to be displayed by law as described above, the scales of other multiple instruments are formed on the same dial, and the scale corresponding to each instrument is indicated by a single pointer. A multi-display instrument configured to selectively indicate is provided.

As an example of a conventional multi-display instrument, there is a multi-purpose display instrument disclosed in Japanese Utility Model Laid-Open No. 55-40390. In this versatile display instrument, a plurality of types of scales corresponding to a plurality of instruments are formed concentrically on a single dial, and the plurality of types of scales are arranged by a single rotary pointer disposed in front of the dial. One of the scales is selectively instructed in accordance with a measurement amount of a sensor or the like associated with a meter corresponding to the scale. According to the multipurpose display instrument described above,
Since the number of dials provided in the combination meter can be smaller than the number of instruments, individual dials can be enlarged, and the number of hands can be smaller than the number of meters. There is an advantage that the number of rotary drive sources can be reduced and the cost of the instrument can be reduced.

On the other hand, in the above-mentioned multipurpose display instrument, if it is not clearly recognized which instrument is selected to be displayed, which of the plurality of concentrically arranged scales is used as a pointer. However, it is difficult to identify whether the instruction is given, and the display is very difficult to see. Therefore, as shown in FIG. 11, the single dial is divided into a plurality of pieces in the circumferential direction of the dial along the rotation direction of the hands, and the scales of the individual instruments are respectively provided on each of the divided dial portions. May be arranged to form a multi-display instrument.

[0006]

However, as described above, when the scales of the individual instruments are respectively arranged on the plurality of divided dial portions divided in the circumferential direction of the dial, the dial is correspondingly provided. Must be made extra large, occupying more space in the combination meter, which may limit the size of other important instruments, such as speedometers, or However, there is a problem that the required size of the dial cannot be secured due to the restriction of the space for disposing the instruments. Further, in the multi-display instrument of FIG. 11 described above, the scales of the respective instruments are dispersedly arranged in an irregular direction on the dial, so that the scale orientation lacks the command and the design appearance is poor. There is a problem that it becomes.

[0007] The present invention has been made in view of the above circumstances,
An object of the present invention is to provide a single pointer and its driving source, and
It is an object of the present invention to provide an inexpensive multi-display instrument capable of displaying the measurement amounts of a plurality of instruments with a dial plate so that the measured quantities can be easily viewed.

[0008]

According to a first aspect of the present invention, there is provided a multi-display instrument according to the present invention, wherein a plurality of scales corresponding to a plurality of instruments are formed on a front surface of a dial having a plurality of scales. A pointer shaft is rotatably inserted, and the pointer shaft is driven to rotate in accordance with a measured amount, and extends in a radial direction of the pointer shaft with a pointer attached to the pointer shaft portion located in front of the dial. By a pointer portion, in a multi-display instrument that indicates a scale position corresponding to the measurement amount on a single scale among a plurality of scales on the front face of the dial, at least a part of the scales is changed. The dial is disposed on the dial at a position radially outward of the pointer shaft from some of the other scales, and the pointer is disposed on two circumferential surfaces of the pointer shaft at a circumferential distance from each other in the circumferential direction of the pointer shaft. Extending in the radial direction of the pointer shaft from the surface It is composed of a long hand and a short hand, and the length of the long hand in the radial direction is formed at a size corresponding to the interval in the radial direction from a place where the pointer shaft is inserted in the dial to the part of the scale. Forming the length of the short hand in the radial direction, and a dimension corresponding to the interval in the radial direction from the place where the pointer shaft is inserted in the dial to the other part of the scale, A return plate concealing the short hand in a state where the long hand indicates the part of the scale, and concealing the long hand in a state where the short hand indicates the other part of the scale is disposed in front of the hands. It is characterized by the following.

Further, in the multi-display instrument according to the present invention, the part of the scale is a scale that requires a higher resolution than the other part of the scale. Furthermore, in the multi-display instrument according to the third aspect of the present invention, at least one of the part of the scale and the other part of the scale has an interval from a position where the pointer shaft is inserted through the dial. It is assumed that a plurality of the dials are arranged at equal intervals and spaced apart in the circumferential direction of the pointer shaft.

A multi-display instrument according to a fourth aspect of the present invention, as shown in the basic configuration diagram of FIG.
59, a driving source 157 for rotationally driving the display 59, display scale specifying means 23 for specifying a single scale among the plurality of scales 151d and 151e, and scales 151c to 151e corresponding to the specified state of the display scale specifying means 23. The drive pattern of the drive source 157 for indicating one of the long hand 153b and the short hand 153c to the position of the scale 151c to 151e corresponding to the measurement amount of the meter 25 to 29 corresponding to the scale 151c to 151e. And a drive pattern selecting means 21A for selecting, and the drive source 157 is driven by the drive pattern selected by the drive pattern selecting means 21A.

Further, in the multi-display instrument according to the present invention, the display scale designating means 23 may be a specific one of the plurality of scales 151c to 151e.
The drive pattern selecting means 2 is configured to designate a single scale 151d (151e) other than 51c.
1A is configured to select the drive pattern corresponding to the specific single scale 151c in a state where the scale 151d (151e) is not specified by the display scale specifying means 23. Further, in the multi-display instrument according to the present invention, the other single scale 151d selected by the drive pattern selecting means 21A in accordance with the specified state of the display scale specifying means 23.
The drive pattern corresponding to (151e) is set to the other single scale 151 by the display scale designating means 23.
After a lapse of a predetermined time from the designation of d (151e), a selective drive pattern forcible return means 21B for returning to the drive pattern corresponding to the specific single scale 151c is further provided.

Further, a multi-display instrument according to the present invention according to the present invention comprises a judging means 21C for judging whether or not each of the measured quantities corresponding to the plurality of instruments 25 to 29 is within a predetermined dangerous range. The drive pattern selected by the drive pattern selection unit 21A in response to the determination unit 21C determining that the measured amount is within a predetermined risk range,
The scales 151d, 151 corresponding to the measured amounts determined by the determination means 21C to be within the predetermined dangerous range.
e, the selected drive pattern forcible changing means 21D for changing the drive pattern to the drive pattern according to e, and the determination result of the determination means 21C is changed from the determination that the measured amount is within the predetermined dangerous range to the determination that the measured amount is not within the predetermined dangerous range In response to the change, the drive pattern selected by the drive pattern selection unit 21A is changed to the selected drive pattern forcible change unit 21A.
A second selection driving pattern return changing unit 21E for returning from the driving pattern changed by D to the driving pattern before being changed by the selected driving pattern compulsory changing unit 21D is further provided.

Further, in the multi-display instrument according to the present invention, the selective drive pattern forcible changing means 21D includes:
While the determination means 21C determines that the plurality of measured quantities are respectively in the predetermined risk ranges at the same time, the drive pattern selection means 21A determines that the determination means 21C is in the respective predetermined risk ranges. The plurality of drive patterns corresponding to the plurality of measurement amounts are sequentially and cyclically selected.

According to the multi-display instrument of the present invention as set forth in claim 1, of the plurality of scales, the scale is arranged at the dial portion radially outward of the pointer shaft from some of the other scales. When at least a part of the scale is indicated by the long hand, the short hand is concealed by the dial in that state, and cannot be visually recognized from the front of the multi-display instrument. Conversely, of the plurality of scales, the other part of the scale is disposed at the dial location radially inward of the pointer shaft from the at least part of the scale, and When the scale of the section is indicated by the short hand, in that state, the long hand is hidden by the dial and becomes invisible.

Therefore, the short hand can be visually recognized when instructed by the long hand, or the long hand can be visually recognized when instructed by the short hand, so that the appearance and visibility of the design are not deteriorated. By displacing the arrangement of the scales on the dial in the radial direction of the pointer shaft, it is possible to arrange a plurality of scales in the circumferential direction of the pointer shaft, that is, in the circumferential direction of the dial, so that the plurality of scales can be overlapped. Since the scales are arranged at a certain scale interval, it is not necessary to increase the size of the dial, that is, the size in the circumferential direction. This prevents the space occupied by the combination meter from becoming large, and prevents the size of other important instruments such as a speedometer from being restricted. Since the arrangement on the plate is displaced in the radial direction of the pointer shaft, it is possible to secure the command of the direction of each scale. In addition, since the measurement amount of each instrument can be displayed by a single drive source, there is no need to provide a plurality of drive sources corresponding to each instrument. Can be displayed with an inexpensive configuration.

Further, according to the multi-display instrument of the present invention described in claim 2, the pointer has a dial having a larger dimension along the circumferential direction of the pointer shaft than the other part of the scale. The at least some of the graduations, which are arranged at the dial location radially outward of the axis, require higher resolution than the other graduations, so that at least some of the graduations are It is possible to ensure a large dimension between two adjacent graduations, and to make the graduation interval sufficiently visible even if the resolution is increased. Further, according to the multi-display instrument of the present invention as set forth in claim 3, the scale of the part and the other scale are provided on the dial portion of the dial plate at an equal distance from a position where the pointer shaft is inserted. Since at least one of the graduations of the portion is arranged at intervals in the circumferential direction of the pointer shaft, the number of graduations arranged in the circumferential direction as well as in the radial direction of the pointer shaft can be increased and displayed. It is possible to increase the types of measurement amounts of the instrument.

Further, according to the multi-display instrument of the present invention, the drive pattern selecting means 21A selects the drive pattern of the drive source 157 in accordance with the designated state of the display scale designating means 23, Since the drive source 157 is driven by the selected drive pattern, the display scale designating means 23
By specifying a desired scale (for example, scale 151d) among the plurality of scales 151c to 151e, the instruments 25 to 29 (for example, instrument 2) corresponding to the scale 151d are designated.
One of the long hand 153b and the short hand 153c (for example, the short hand 153c) is pointed to the scale 151d corresponding to the measurement amount of 7), and in this state, the long hand 1
Since the other one of the short hand 53b and the short hand 153c (for example, the long hand 153b) is hidden by the dial plate 155, the measurement amount of the meter 27 corresponding to the designated state of the display scale designating means 23 is displayed by the scale 151d and the short hand 153c. And the long hand 153b that obstructs the display is turned back.
It becomes possible to hide at 55.

Further, according to the multi-display instrument of the present invention described in claim 5, the drive pattern selecting means 21A is provided with the scale 151d or the scale 1 by the display scale designating means 23.
By selecting a specific driving pattern corresponding to a single scale 151c that is not specified by the display scale specifying unit 23 without specifying 51e, the display scale specifying unit 23 specifies the scale 151d or the scale 151e. Even if there is no mark, the scale 151c can be set by the scale 151c and one of the long hand 153b and the short hand 153c.
The measurement amounts of the instruments 25 to 29 (e.g., the instrument 25) corresponding to c can be constantly displayed on the multi-display instrument, thereby preventing a non-display state from occurring.

Further, according to the multi-display instrument of the present invention, for example, the scale 151d is designated by the display scale designating means 23, and after a predetermined time has passed from the designation, the selected drive pattern forced return means is provided. 21B is a driving pattern selected by the driving pattern selecting means 21A,
Since the drive pattern corresponding to the scale 151d is changed to a specific drive pattern corresponding to the single scale 151c, the measurement amount of the meter 27 corresponding to the designated state of the display scale designating means 23 is, for example, the scale 151d and the hour hand, for example. 153c, the scale 15
It is possible to automatically return the display state of the multi-display instrument to the constant display of the measurement amount of the instrument 25 corresponding to the scale 151c by the 1c and one of the long hand 153b and the short hand 153c.

Further, according to the multi-display instrument of the present invention, when the judgment means 21C judges that the measured amounts corresponding to the respective instruments 25 to 29 are within a predetermined dangerous range, the drive is activated. The drive pattern selected by the pattern selection unit 21A is selected by the selected drive pattern forcible change unit 21D.
Scales 151d and 151 indicate measurement amounts within a predetermined dangerous range.
e to change the drive pattern according to the display on
In addition, when the measured amount once determined by the determining unit 21C to be within the predetermined dangerous range is changed to an amount determined by the determining unit 21C not to be within the predetermined dangerous range, the driving pattern selected by the driving pattern selecting unit 21A is changed. From the drive pattern changed by the selected drive pattern forcible change unit 21D to the drive pattern before the change by the selected drive pattern forcible change unit 21D. Therefore, each instrument 2
Only when each of the measured quantities corresponding to 5-29 is within a predetermined risk range, the measured quantity is displayed by the corresponding long hand 153b or short hand 153c and the scales 151c-151e. It is possible to automatically return the multi-display instrument to the display state before each of the measured values corresponding to .about.29 enters the predetermined dangerous range.

Further, according to the multi-display instrument of the present invention, when the measured amounts corresponding to the plurality of instruments 25 to 29 are simultaneously in the respective predetermined danger ranges, the selective driving pattern is forced. The changing unit 21D causes the drive pattern selecting unit 21A to sequentially and cyclically select a plurality of drive patterns corresponding to the plurality of measurement amounts determined by the determination unit 21C to be in the predetermined dangerous range. Check all the entered measurements with the corresponding long hand 1
53b or short hand 153c and scales 151c to 151e
Thus, it is possible to sequentially display without omission.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 2 is a front view of a combination meter having a multi-display instrument according to one embodiment of the present invention. In the combination meter of this embodiment indicated by the reference numeral 1 in FIG. 2, the odometer 13a and the trip meter 13b are on the dial 131. Speedometer 13 located in
And an engine tachometer 15a, a fuel gauge 15b,
And a multi-display instrument 15 integrated with a water temperature gauge 15c, a turn signal lamp 17 for displaying a blinking state of a blinker or a hazard lamp, and an A / T position indicator for displaying a current position of an automatic transmission (A / T). 19 and the like, which are respectively arranged on the front panel 10.

As shown in the enlarged front view of FIG. 3, the multi-display instrument 15 has scales 151c to 151 on its front surface 151a.
The dial 151 includes a dial 151 on which e is formed, a pointer 153 disposed in front of the dial 151, a dial 155 disposed in front of the pointer 153, and the like. The multi-display instrument 15 includes a movement 157 (corresponding to a drive source) for driving a pointer 153 disposed behind the dial 151 as shown in a sectional view in FIG. The pointer shaft 159, which is the output shaft of the dial, is inserted through a through hole 151f at a substantially central portion of the dial 151 (corresponding to a portion where the dial is inserted in the dial), and from the back surface 151b side to the front surface 151a side of the dial 151. The pointer hammer 153a of the pointer 153 is attached to the tip of the pointer shaft 159. The return plate 155 is formed in a shape and a size to cover a lower half of the dial 151 with the through hole 151f as a boundary.

The scales 151c to 151e are provided with the engine tachometer 15a, the fuel gauge 15b, and
The scale 151c of the engine tachometer 15a corresponds to the water temperature gauge 15c.
At the position near the periphery of the upper half of the dial 151 that is not concealed by 55, the dial 151 is arranged so as to extend over the entire upper half of the dial 151 along the circumferential direction of the pointer shaft 159. The scale 151d of the fuel gauge 15b and the scale 151e of the water temperature gauge 15c are provided in the upper half of the dial 151 near the through hole 151f inside the scale 151c of the engine tachometer 15a. In the present embodiment, the scale 151d of the fuel gauge 15b is disposed in the left quadrant in FIG. 3 in the circumferential direction and at a continuous interval in the circumferential direction. ,
The scale 151e of the water temperature gauge 15c is arranged in the right quadrant. That is, the scale 151d and the scale 151
e is disposed in the dial 151 at an equal interval L3 from the through-hole 151f in the radial direction of the pointer shaft 159, and the scale 151c is arranged such that the interval L1 from the through-hole 151f in the radial direction is equal to the interval L3. It is arranged in a portion of the dial 151 having a larger dimension.

As shown in the enlarged front view of FIG. 5, the pointer 153 has a scale 151c of the engine tachometer 15a.
153b, a scale 151d for the fuel gauge 15b, and a scale 15 for the water temperature gauge 15c.
1e. The long hand 153b and the short hand 153c are provided on the peripheral surface of the pointer hammer 153a, and the pointer hand 153a is attached to the tip of the pointer shaft 159. Each of the pointer shafts 159 is protruded from a circumferential surface position shifted by 180 ° in the circumferential direction of the pointer shaft 159.
, And extends substantially linearly in the radial direction of the pointer shaft 159. The long hand 153b thus arranged is
The tip is the scale 151c of the engine tachometer 15a.
The short hand 153c has a length reaching the scale 151d of the fuel gauge 15b and the scale 151e of the water temperature gauge 15c.

In this embodiment, two adjacent scales 15 of the fuel gauge 15b and the water thermometer 15c are used.
1d, 151d, scales 151e, 151e and through hole 15
The angle at which the lines connecting the lines 1f intersect with each other is determined by the two adjacent scales 151c, 151c of the engine tachometer 15a.
Than the angle at which the lines connecting the
It is formed at a large angle. Therefore, in the multi-display instrument 15 of the present embodiment, the engine tachometer 15a is more than the resolution of the remaining gasoline and the radiator cooling water temperature indicated by the short hand 153c on the fuel gauge 15b and the water temperature gauge 15c.
The resolution of the engine speed indicated by the long hand 153b is set higher, and the scale 151c of the engine tachometer 15a having this high resolution is larger than the scale 151d of the fuel gauge 15b and the scale 151e of the water temperature gauge 15c. These scales 15 are placed near the periphery of the plate 151.
They are arranged so as to occupy a larger space than 1d and 151e.

Pointer shaft 15 by the movement 157
9 is controlled by the microcomputer 21 as shown in the block diagram of the electrical schematic configuration of the multi-display instrument 15 in FIG. The microcomputer 21 includes a CPU (Central Proc)
essing Unit, central processing unit) 21a and RAM (Rand
om Access Memory) 21b and ROM (Read-Only Memo)
ry) 21c.

The CPU 21a has the RAM 21b
And ROM 21c and the driver 1 of the movement 157
57a, a display designation switch 23 (corresponding to a display scale designation means), a traveling sensor 25 for outputting a number of traveling pulses corresponding to the rotation of the engine, and a gasoline in a fuel tank (not shown). A sender 27a of the fuel sensor 27 for detecting the remaining amount of the fuel and outputting a signal of a resistance value corresponding thereto, and a water temperature for detecting the temperature of the cooling water in a radiator (not shown) and outputting a signal of the resistance value accordingly. The sender 29a of the sensor 29 is connected. In this embodiment, the travel sensor 25, the fuel sensor 27,
And the water temperature sensor 29 is equivalent to the meter in a claim.

Although the detailed designation of the display designating switch 23 is omitted, for example, a mechanical contact type tactile push switch or the like is used, and a fuel designating switch 23a for designating a gasoline remaining amount display by the fuel gauge 15b. And the water thermometer 1
And a water temperature designation switch 23b for designating the display of the temperature of the radiator cooling water by 5c.

The RAM 21b has a data area for storing various data and a work area used for various processing operations, as shown by a memory area map in FIG.
The work area includes areas for a gasoline remaining amount instruction timer, a water temperature instruction timer, a parallel instruction timer, and a parallel instruction flag. The ROM 21c has a CP
A control program for causing U21a to perform various processing operations is stored.

Next, the processing performed by the CPU 21a according to the control program stored in the ROM 21c will be described with reference to the flowcharts of FIGS. When power is supplied by turning on an ignition switch (not shown) and the microcomputer 21 is started, the CPU 21a firstly executes step S1 as shown in the flowchart of FIG.
In the initial setting, the timer values Ta, Tb, and Tc of the respective areas of the gasoline remaining amount instruction timer, the water temperature instruction timer, and the parallel instruction timer of the RAM 21b are reset to zero, and the parallel instruction flag Fa is set to “0”. .

After the initial setting is completed, the CPU 21a is then turned on based on the running pulse from the running sensor 25.
The drive pattern of the long hand 153b for indicating the engine speed calculated on the scale 151c is selected (step S3), and the movement 1
After the engine 57 is driven to execute an engine speed instruction process for instructing the engine speed on the engine tachometer 15a by the long hand 153b (step S5), it is confirmed whether or not the display designation switch 23 is operated (step S5).
7).

If the display designating switch 23 has not been operated (N in step S7), a step S35 to be described later is executed.
When the operation is performed (Y in step S7), it is confirmed whether or not the operated operation is the fuel designation switch 23a (step S9). If the operated fuel switch 23a is operated (Y in step S9), the gasoline remaining amount measured by the fuel sensor 27 is indicated by a scale 151 based on the signal from the sender 27a.
A driving pattern of the short hand 153c for indicating on d is selected (step S11), the movement 157 is driven by the driving pattern, and the remaining gasoline remaining is indicated on the fuel gauge 15b by the short hand 153c. After the execution (step S13), the RAM
The time counting by the gasoline remaining amount instruction timer area 21b is started (step S15).

Then, it is confirmed whether or not the timer value Ta of the gasoline remaining amount instruction timer has reached 5 seconds (step S1).
7) If not reached (N in step S17), 5
Step S17 is repeated until the time reaches the second. If the time has been reached (Y in step S17), step S27 to be described later is executed.
Proceed to.

In step S5, the operated display designation switch 23 is changed to the fuel designation switch 23a.
If not (N), the short hand 153 for indicating the temperature of the radiator cooling water measured by the water temperature sensor 29 on the scale 151e based on the signal from the sender 29a.
c is selected (step S19), the movement 157 is driven by the selected driving pattern, and the short hand 15
After executing a water temperature instruction process for instructing the temperature of the radiator cooling water on the water temperature gauge 15c by the step 3c (step S2).
1), time counting by the water temperature instruction timer area of the RAM 21b is started (step S23).

Then, it is confirmed whether or not the timer value Tb of the water temperature instruction timer has reached 5 seconds (step S25). If not (N in step S25), step S25 is repeated until it reaches 5 seconds. If it has reached (Y in step S25), the process proceeds to step S27.

In step S27, it is checked whether or not the flag Fa in the parallel instruction flag area of the RAM 21b is "0". If it is "0" (Y in step S27),
If it is not “0” (N in step S27), the time counting by the parallel instruction timer area of the RAM 21b is stopped (step S2).
9) The timer value Tc of the time count in the parallel instruction timer area is reset to zero (step S31), and after setting the flag Fa to "0" (step S33), the process proceeds to step S35. Step S35
Then, as shown in the flowchart of FIG. 9, the resistance value Ra of the signal from the sender 27a of the fuel sensor 27 is changed.
However, it is checked whether or not it has reached 80 Ω or more, which is a state in which a gasoline remaining amount warning lamp (not shown) is turned on. If it has reached, it is determined in step S37, and if not, it is determined in step S43. It is confirmed whether or not the resistance value Rb of the signal from the sender 29a of the water temperature sensor 29 has fallen to 30Ω or less, which is a state for lighting a radiator cooling water temperature warning lamp (not shown).

If it is determined in step S37 that the resistance value Rb is not less than 30Ω (N), the process proceeds to step S65 described later,
If it is 30Ω or less (Y), a drive pattern of the short hand 153c for indicating the remaining gasoline remaining amount measured by the fuel sensor 27 on the scale 151d is selected in the same manner as in Steps S11 and S13 (Step S13).
39) Subsequently, after executing the gasoline remaining amount instruction process (step S41), the process proceeds to step S49 described later. If the resistance value Rb is not equal to or less than 30Ω in step S43 (N), the process proceeds to step S57, which will be described later. If the resistance value Rb is equal to or less than 30Ω (Y), the water temperature sensor 29 is controlled similarly to steps S19 and S21. A driving pattern of the short hand 153c for indicating the measured radiator cooling water temperature on the scale 151e is selected (Step S45). Subsequently, after the water temperature instruction processing is executed (Step S47), the process proceeds to Step S49.

In step S49, which proceeds after executing the gasoline remaining amount instruction process in step S41 and the water temperature instruction process in step S47, it is determined whether the flag Fa in the parallel instruction flag area is "0" as in step S27. It is confirmed that if it is "0" (Y in step S49), the process returns to step S7, and if it is not "0" (N in step S49), the time counting by the parallel instruction timer area is stopped (step S51). Then, the timer value Tc in the parallel instruction timer area is reset to zero (step S53), the flag Fa is set to "0" (step S55), and the process returns to step S7.

If the resistance value Rb is not equal to or less than 30Ω in step S43 (N), the flow advances to step S57 to determine whether or not the flag Fa in the parallel instruction flag area is "0" as in steps S29 and S49. If it is "0" (Y in step S57), the process returns to step S3. If it is not "0" (N in step S57), the time counting by the parallel instruction timer area is stopped (step S57). (S59), reset the timer value Tc in the parallel instruction timer area to zero (step S61), set the flag Fa to "0" (step S63), and return to step S3.

On the other hand, in step S37, the resistance value Rb becomes 30
If it is not equal to or less than Ω (N), in step S65, as shown in the flowchart of FIG. 10, it is checked whether or not the flag Fa in the parallel instruction flag area is “0”.
If it is not "0" (N in step S65), the process proceeds to step S71 described later, and if it is "0" (Y in step S65), time counting by the parallel instruction timer area is started (step S67). After setting the flag Fa in the parallel instruction flag area to "1", the process proceeds to step S71.

In step S71, the timer value Tc of the time count in the parallel instruction timer area is set to 10 seconds (s).
ec) is checked, and if not reached (N), the process proceeds to step S85 described later. If reached (Y), the fuel sensor 27 is reached as in steps S11 and S13. Short hand 153c for indicating the measured gasoline remaining amount on the scale 151d
Is selected (step S73).
After executing the gasoline remaining amount instruction process (step S7)
5) It is checked whether the timer value Tc has reached 15 seconds (sec) (step S77). Timer value Tc is 1
If the time has not reached 5 seconds (N in step S77), the process proceeds to step S85 described below. If the time has reached (Y in step S77), the time counting by the parallel instruction timer area is stopped (step S79). Timer value T
c is reset to zero (step S81), the flag Fa in the parallel instruction flag area is set to "0" (step S83), and the process returns to step S35.

If the timer value Tc of the parallel instruction timer area has not reached 10 seconds in step S71 (N)
In step S85, similarly to steps S19 and S21, the drive pattern of the short hand 153c for indicating the water temperature of the radiator cooling water measured by the water temperature sensor 29 on the scale 151e is selected. After executing the instruction process (step S87), the process returns to step S35.

Next, the operation (action) of the multi-display instrument 15 of the present embodiment configured as described above will be described. First, the ignition switch is turned on, the fuel designation switch 23a and the water temperature designation switch 23b of the display designation switch 23 are not operated, and the resistance value Ra of the signal from the sender 27a of the fuel sensor 27 is improper. The resistance value Rb of the signal from the sender 29 a of the water temperature sensor 29 has not reached 80 Ω or more corresponding to the lighting state of the illustrated gasoline remaining amount warning lamp, and
If the radiator cooling water temperature warning lamp (not shown) is not 30 Ω or less corresponding to the lighting state of the lamp, the display state of the engine speed is displayed. In this display state of the engine speed, the engine tachometer 15a corresponding to the engine speed calculated by the CPU 21a based on the running pulse from the running sensor 25 is provided.
Is indicated by the long hand 153b rotated by the movement 157.

Next, when the fuel designating switch 23a of the display designating switch 23 is operated while the engine speed is being displayed, the display shifts to the gasoline remaining amount display state, and the gasoline measured by the fuel sensor 27 is displayed. A scale 151d of the fuel gauge 15b corresponding to the remaining amount is provided with a short hand 153c rotationally driven by a movement 157.
, The display is returned to the display of the engine speed. Similarly, during the display state of the engine speed described above, the water temperature designation switch 23 of the display designation switch 23 is set.
When b is operated, the display shifts to the display state of the radiator cooling water temperature, and the scale 151e of the water temperature gauge 15c corresponding to the water temperature of the radiator cooling water measured by the water temperature sensor 29 is moved by the short hand 153c rotated by the movement 157. 5
It is instructed for seconds, and then the display returns to the display of the engine speed.

When the resistance value Ra of the signal from the sender 27a of the fuel sensor 27 reaches 80 Ω or more during the above-described display of the engine speed, the remaining gasoline is forced regardless of the operation of the fuel designation switch 23a. When the resistance value Ra falls below 80Ω during the forced gasoline remaining amount display state, the display state returns to the above-described display state of the engine speed. Further, when the water temperature designation switch 23b of the display designation switch 23 is operated during the above-described forced gasoline remaining amount display state, the display shifts to the radiator cooling water temperature display state, and the radiator cooling water measured by the water temperature sensor 29 is displayed. Scale 151 of water thermometer 15c according to water temperature
The short hand 1 where the point e is rotationally driven by the movement 157
Instructed by 53c for 5 seconds. After the above-described display state of the radiator cooling water temperature for 5 seconds is completed, the resistance value Ra is increased.
If the resistance value still reaches 80Ω, the display returns to the above-described forced gasoline remaining display state, and if the resistance value Ra is less than 80Ω, the display returns to the above-described display state of the engine speed.

Next, when the resistance value Rb of the signal from the sender 29a of the water temperature sensor 29 becomes 30Ω or less while the engine speed is being displayed, the radiator cooling water temperature is forcibly displayed regardless of the operation of the water temperature designation switch 23b. To
During the forced display of the radiator cooling water temperature, the resistance value Rb
Exceeds 30Ω, the display returns to the above-described display state of the engine speed. Also, when the fuel designation switch 23a of the display designation switch 23 is operated during the above-described forced display of the radiator cooling water temperature, the state shifts to the gasoline remaining amount display state, and the gasoline remaining amount measured by the fuel sensor 27 is displayed. Scale 151 of the corresponding fuel gauge 15b
Point d is indicated for 5 seconds by the short hand 153c. After the display state of the gasoline remaining amount for 5 seconds is completed, if the resistance value Rb is still 30Ω or less, the display returns to the above-described forced display state of the radiator cooling water temperature, and the resistance value Rb
Is larger than 30Ω, the display returns to the above-described display state of the engine speed.

Subsequently, during the display of the engine speed,
When the resistance value Ra of the signal from the sender 27a of the fuel sensor 27 reaches 80Ω or more, and at the same time, the resistance value Rb of the signal from the sender 29a of the water temperature sensor 29 becomes 30Ω or less, the fuel designation switch of the display designation switch 23 Regardless of the operation of the switch 23a or the water temperature designation switch 23b, the display shifts to the parallel forced display state in which the gasoline remaining amount and the radiator cooling water temperature are alternately and repeatedly displayed. In this parallel forced display state, first, the forced display state of the radiator cooling water temperature indicated by the short hand 153c on the scale 151e of the water temperature gauge 15c corresponding to the water temperature of the radiator cooling water measured by the water temperature sensor 29 is performed for 10 seconds. And then
The scale 151d of the fuel gauge 15b corresponding to the gasoline remaining amount measured by the fuel sensor 27 is
Forcible display of the gasoline remaining amount indicated by the short hand 153c is performed for 5 seconds, and thereafter, the forced display of the radiator cooling water temperature for 10 seconds and the forced display of the gasoline remaining amount for 5 seconds are repeatedly performed.

Also, during the above-described forced gasoline remaining amount display state, when the resistance value Rb of the signal from the sender 29a of the water temperature sensor 29 becomes 30Ω or less, or during the above-mentioned forced radiator cooling water temperature display state. , Fuel sensor 2
Also, when the resistance value Ra of the signal from the sender 27a of No. 7 has reached 80 Ω or more, the display shifts to the above-described parallel forced display state. When the resistance value Rb of the signal from the sender 29a exceeds 30Ω during the parallel forced display state, the state shifts to the forced display state of the gasoline remaining amount, and when the resistance value Ra of the signal from the sender 27a falls below 80Ω, The display shifts to the forced display state of the radiator cooling water temperature. When the resistance value Ra of the signal from the sender 27a falls below 80Ω and the resistance value Rb exceeds 30Ω, the display shifts to the above-described display state of the engine speed.

As described above, according to the multi-display instrument 15 of this embodiment, the scale 151c of the engine tachometer 15a arranged in the upper half of the dial 151 is indicated by the long hand 153b in front of the dial 151, Also, the engine tachometer 15a
Inside the scale 151c and near the through hole 151f in the upper half part of the dial 151, along the circumferential direction of the pointer shaft 159,
In addition, the scale 151d of the fuel gauge 15b and the water temperature gauge 15 which are arranged so as to be continuous at an interval in the circumferential direction.
c, the scale 151e is moved from the long hand 153b to the pointer shaft 1.
The configuration is such that each of the pointers is indicated by a short hand 153c extending from the peripheral surface of the pointer shaft 159, which is 180 ° out of phase with respect to the circumferential direction of the pointer 59. Further, according to the multi-display instrument 15 of the present embodiment, when the scale 151c is indicated by the long hand 153b, the short hand 153c is concealed by the facing plate 155 provided corresponding to the lower half portion in front of the dial 151, Further, when the scales 151d and 151e are indicated by the short hand 153c, the long hand 153b is concealed by the facing plate 155.

For this reason, the short hand 153c can be visually recognized when instructed by the long hand 153b, or the short hand 153c
The hand 153b is in a visible state at the time of the instruction by the operator, and the design appearance and visibility of the multi-display instrument 15 are not deteriorated, and the three scales 151c to 151 are not changed.
By displacing e on the dial 151 in the radial direction of the pointer shaft 159, the circumferential direction of the pointer shaft 159, that is, the dial 1
51, a scale 151c and a scale 151 in the circumferential direction.
d and 151e can be arranged so as to overlap each other, and since the scales 151c to 151e are arranged at a certain scale interval, it is not necessary to increase the size of the dial 151, that is, the size in the circumferential direction.

Accordingly, the space occupied by the multi-display instrument 15 in the combination meter 10 can be prevented from increasing, and the size of other important instruments such as the speedometer 13 can be prevented from being restricted. In addition, since the scale 151c and the scales 151d and 151e are displaced on the dial 151 in the radial direction of the pointer shaft 159, the directions of the scales 151c to 151e are unified to the upper half of the dial 151. In addition, it is possible to secure the command of the direction indicated by the long hand 153b and the short hand 153c. Moreover, the engine tachometer 15a, the fuel gauge 15b, and the water temperature gauge 1
Since a single movement 157 can be used as the drive source for displaying the display 5c, the engine tachometer 15a, the fuel gauge 15b, and the water temperature gauge 15c are provided.
It is not necessary to provide a drive source corresponding to each of the above, and the number of drive sources can be reduced, and three measured amounts of the engine speed, the gasoline remaining amount, and the radiator cooling water temperature can be displayed with an inexpensive configuration.

Further, according to the multi-display instrument 15 of the present embodiment, the fuel designation switch 2 of the display designation switch 23 is used.
The configuration is such that the CPU 21a of the microcomputer 21 selects a drive pattern of the movement 157 and drives the movement 157 according to the drive pattern according to the operation states of the 3a and the water temperature designation switch 23b. For this reason,
When the fuel designation switch 23a is operated, the remaining gasoline is displayed by the fuel gauge 15b and the short hand 153c. When the water temperature designation switch 23b is operated, the radiator cooling water temperature is displayed by the water temperature gauge 15c and the short hand 153c. In this state, the long hand 153b that is not used for display can be concealed so that the return plate 155 cannot surely see it.

The scale 151 of the engine tachometer 15a
“c” may be arranged at a position on the dial 151 radially inward of the pointer shaft 159, rather than the scale 151d of the fuel gauge 15b and the scale 151e of the water temperature gauge 15c, but as in the multi-display instrument 15 of the present embodiment. In addition, the scale 151c of the engine tachometer 15a, which requires a high resolution, has a larger dial 151 in the circumferential direction of the pointer shaft 159 than the scale 151d of the fuel gauge 15b and the scale 151e of the water temperature gauge 15c. The following effects can be obtained by arranging the dial at the position of the dial 151 radially outward of the shaft 159. That is, the scale interval of the scale 151c of the engine tachometer 15a can be set to a large interval that can be sufficiently recognized even when the resolution is increased, as compared with the scale 151d of the fuel gauge 15b and the scale 151e of the water temperature gauge 15c.

The scale 1 of the fuel gauge 15b
51d and the scale 151e of the water temperature gauge 15c
9 may be arranged at the positions of the characters 151 spaced apart in the radial direction, but since both are not scales requiring high resolution, like the multi-display instrument 15 of the present embodiment, the pointer shaft 1
Dial 151 through which hole 59 is inserted substantially at the center
There is no bearing on arranging the pointer shaft 159 in the circumferential direction of the pointer shaft 159 in the upper half portion of the dial 151 having the same distance L3 from f, and such an arrangement has the following effects. Obtainable. That is, it is possible to increase the number of scales arranged not only in the radial direction of the pointer shaft 159 but also in the circumferential direction, thereby increasing the types of measurement amounts that can be displayed.

Further, the display of the engine speed may be performed by providing a corresponding switch in the display designating switch 23 and operating in accordance with the operation of the switch. , Display designation switch 2
3, the CPU 21a of the microcomputer 21 may select a drive pattern of the movement 157 for displaying the engine speed and drive the movement 157 by the drive pattern. The following effects can be obtained. That is, the fuel designation switch 23a and the water temperature designation switch 23b
Even if both are not operated, at that time, the engine speed is always displayed by the engine tachometer 15a and the long hand 153b without setting the non-display state, and the short hand 153c not used for the display is displayed in this state. It can be concealed by the return plate 155 so that it cannot be visually recognized.

The display state of the gasoline remaining amount and the radiator cooling water temperature may be terminated by re-operating the fuel designation switch 23a and the water temperature designation switch 23b of the display designation switch 23. 15, the CPU 21a of the microcomputer 21 selects the drive pattern of the movement 157 for displaying the gasoline remaining amount and the radiator cooling water temperature according to the operation state of the fuel specifying switch 23a and the water temperature specifying switch 23b of the display specifying switch 23. After a predetermined time has elapsed after driving the movement 157 with the driving pattern, a driving pattern of the movement 157 for displaying the engine speed may be selected, and the movement 157 may be driven with the driving pattern. , In that case, Such effects can be obtained.

That is, when the display state of the normal multi-display instrument 15 is set to the engine speed, the fuel specification switch 23a and the water temperature specification switch 23 of the display specification switch 23 are set.
According to the operation state of b, the multi-display instrument 15 is appropriately switched to the display state of the gasoline remaining amount and the radiator cooling water temperature, and after the display state continues for a predetermined time, the fuel specification switch 23a and the water temperature specification switch 23b are re-operated. Without having to do so, the multi-display instrument 15 can be automatically returned to the normal display state of the original engine speed.

Further, the present embodiment may be configured such that the display of the gasoline remaining amount and the radiator cooling water temperature is performed only in response to the operation of the fuel specifying switch 23a or the water temperature specifying switch 23b of the display specifying switch 23. As shown in the multi-display instrument 15, the resistance values Ra, R of the signals according to the gasoline remaining amount and the radiator cooling water temperature output by the senders 27 a, 29 a of the fuel sensor 27 and the water temperature sensor 29.
If b is a value for lighting a gasoline remaining amount warning lamp or a radiator cooling water temperature warning lamp (not shown),
Fuel designation switch 23a of display designation switch 23
Even if the water temperature designation switch 23b is not operated, the CPU 21a of the microcomputer 21 may drive the movement 157 by changing the driving pattern to the driving pattern corresponding to the resistance values Ra and Rb that have turned on the value of the warning lamp. . In this case, when the resistance values Ra and Rb, which subsequently become the values of the warning lamp lighting state, deviate from the values of the warning lamp lighting state, the CPU 21a of the microcomputer 21
Are the resistance values Ra and Rb at which the values of the warning lamp are turned on.
The drive pattern 157 can be driven by returning to the drive pattern before the change to the drive pattern corresponding to.

With such a configuration, the senders 27 a and 29 a of the fuel sensor 27 and the water temperature sensor 29 are provided.
Only when the resistance values Ra and Rb of the signals corresponding to the gasoline remaining amount and the radiator cooling water temperature output by the are the values for lighting the gasoline remaining amount warning lamp and the radiator cooling water temperature warning lamp, the warning lamp lighting state. The remaining gasoline and radiator cooling water temperature are displayed by the short hand 153c and the scales 151d and 151e. At other times, the gasoline remaining amount and the radiator cooling water temperature are displayed by the multi-display instrument 15 before the warning lamp is turned on. For example, the display such as the engine speed or the like can be automatically restored.

As described above, the gasoline remaining amount output from the sender 27a, 29a of the fuel sensor 27 and the water temperature sensor 29 and the resistance values Ra, Rb of the signal corresponding to the radiator cooling water temperature are used as the gasoline remaining amount warning lamp, When the value of the radiator cooling water temperature warning lamp is turned on, the gasoline remaining amount and the radiator cooling water temperature at which the warning lamp is turned on indicate the short hand 153c and the scales 151d, 151.
In the configuration for displaying by e, the multi-display instrument 15 of the present embodiment can be configured as follows. That is, the sender 27a of the fuel sensor 27
The resistance value Ra of the signal according to the remaining gasoline output by
It is the value of the state that turns on the gasoline remaining warning lamp,
Further, when the resistance value Rb of the signal corresponding to the radiator cooling water temperature output from the sender 29a of the water temperature sensor 29 becomes a value for lighting the radiator cooling water warning lamp, the CPU 21a of the microcomputer 21 sets the warning lamp lighting state. A driving pattern corresponding to the resistance value Ra having the value of
The driving pattern corresponding to the resistance value Rb may be alternately and cyclically selected to drive the movement 157. With this configuration, both the gasoline remaining amount and the radiator cooling water temperature which are simultaneously in the warning lamp lighting state can be alternately displayed without leakage by the short hand 153c and the scales 151d and 151e.

In this embodiment, a unique return plate 15 is provided separately from the front panel 10 of the combination meter 1.
5 has been described on the multi-display instrument 15,
For example, as shown in FIG. 11, the size and shape of the front panel 10 a may be changed, and the front panel 10 a may be configured to also serve as a return plate of the multi-display instrument 15. Further, in the present embodiment, the multi-display instrument 15 in which the fuel gauge 15b and the water temperature gauge 15c are integrated with the engine tachometer 15a has been described as an example, but the present invention provides an oil gauge for displaying the hydraulic pressure of pressure oil, It can be widely applied when displaying a plurality of measurement values measured by various instruments mounted on a vehicle, such as a voltmeter, an ammeter, an air gauge for displaying the brake pressure of an air brake, a turbo gauge for displaying a boost pressure of a turbo booster, and the like. Needless to say.

[0063]

As described above, according to the multi-display instrument according to the first aspect of the present invention, a plurality of scales corresponding to the plurality of instruments are provided on the front face of the dial, and the pointer shaft is provided from the rear to the front. Is rotatably inserted, the pointer shaft is driven to rotate in accordance with the measured amount, and the pointer attached to the pointer shaft portion located in front of the dial plate extends in the radial direction of the pointer shaft. With a part, in a multi-display instrument for indicating a scale position according to the measurement amount with a single scale among a plurality of scales on the front face of the dial, at least a part of the scales may be changed to another scale. Two dials are disposed on the dial at a position radially outward of the pointer shaft from some of the scales, and the pointer is disposed at two circumferential positions on the peripheral surface of the pointer shaft spaced in the circumferential direction of the pointer shaft. A long hand and a short hand, each extending in the radial direction of the pointer shaft from The length of the long hand in the radial direction is formed in a size corresponding to the radial distance from the point where the pointer shaft is inserted in the dial to the partial scale, The length of the short hand in the direction, and a size corresponding to the interval in the radial direction from the place where the pointer shaft is inserted in the dial to the other part of the scale, the long hand is the In a state in which the hour hand is concealed in a state in which a part of the scale is instructed, and a return plate for concealing the long hand in a state in which the hour hand instructs the other part of the scale is arranged in front of the hands. .

Therefore, the short hand can be visually recognized when instructed by the long hand, or the long hand can be visually recognized when instructed by the short hand, so that the appearance and visibility of the design are not deteriorated. By shifting the arrangement of multiple scales on the dial in the radial direction of the pointer shaft,
That is, it is possible to arrange a plurality of scales in the circumferential direction of the dial in an overlapping manner, and to arrange the plurality of scales at a certain scale interval, the size of the dial, that is,
The circumferential dimension does not need to be increased.

Therefore, it is possible to prevent the space occupied in the combination meter from being enlarged, to prevent the size of other important instruments such as a speedometer from being restricted, and to use a plurality of scales. Since the arrangement on the dial is displaced in the radial direction of the pointer shaft, it is possible to secure the directionality of the direction of each scale. In addition, since the measurement amount of each instrument can be displayed by a single drive source, there is no need to provide a plurality of drive sources corresponding to each instrument. Can be displayed with an inexpensive configuration.

Further, according to the multi-display instrument of the present invention described in claim 2, the configuration is such that the part of the scale is a scale that requires higher resolution than the other part of the scale. The other part of the scale is arranged at the dial part radially outward of the pointer shaft, in which the size of the dial along the circumferential direction of the pointer shaft is much larger than the part of the scale. It is possible to ensure a large dimension between two adjacent scales of at least some of the scales that require a higher resolution, and to provide a scale interval that is sufficiently visible even when the resolution is increased.

Further, according to the multi-display instrument of the present invention described in claim 3, at least one of the partial scale and the other partial scale has the pointer shaft inserted through the dial. The distance from the place is equal, and a plurality of the dials are arranged at intervals in the circumferential direction of the pointer shaft, so that a plurality of not only in the radial direction of the pointer shaft but also in the circumferential direction. It is possible to increase the number of graduations and increase the types of measurement amounts of the instruments that can be displayed.

According to the multi-display instrument of the present invention, a driving source for rotating and driving the pointer shaft and display scale specifying means for specifying a single scale among the plurality of scales are provided. Driving of the drive source for indicating one of the long hand and the short hand on a scale corresponding to a designated state of the display scale designating means according to a measurement amount of a meter corresponding to the scale. And a driving pattern selecting unit for selecting a pattern, wherein the driving source is driven by the driving pattern selected by the driving pattern selecting unit.

For this reason, by designating a desired scale among a plurality of scales by the display scale designating means, a scale position corresponding to the measurement amount of the meter corresponding to this scale is set to one of the long hand and the short hand. Is indicated, and in that state, the other of the long hand and the short hand is concealed by the dial plate, so that the measurement amount of the meter corresponding to the designated state of the display scale designating means can be changed by either the long hand or the short hand. The display can be made by one of the scales and the scale, and the other one of the long hand and the short hand that hinder the display can be hidden by the return plate.

Further, according to the multi-display instrument of the present invention described in claim 6, it corresponds to the other single scale selected by the drive pattern selecting means in accordance with the specified state of the display scale specifying means. Selective drive pattern forcible return means for returning the drive pattern to the drive pattern corresponding to the specific single scale after a lapse of a predetermined time from the designation of the other single scale by the display scale specifying means. Was further provided. For this reason, for example, after displaying the measurement amount of the meter corresponding to the designated state of the display scale designating means by the other one of the long hand and the short hand and the scale for a predetermined time, the scale, one of the long hand and the short hand is displayed. Thus, the display state of the multi-display instrument can be automatically returned to the constant display of the measurement amount of the instrument corresponding to the scale.

Further, according to the multi-display instrument of the present invention described in claim 7, the judging means for judging whether or not each measured value corresponding to the plurality of instruments is within a predetermined dangerous range, In response to the determination unit determining that the measured amount is within the predetermined risk range, the measurement is performed when the determination unit determines that the drive pattern selected by the drive pattern selection unit is within the predetermined risk range. A selective driving pattern forcible changing means for changing to the driving pattern corresponding to the scale corresponding to the amount, and a determining means for determining from the determination that the measured amount is within a predetermined dangerous range to the determining that the measured amount is not within the predetermined dangerous range. The drive pattern selected by the drive pattern selection unit is changed from the drive pattern changed by the selected drive pattern forcible change unit in response to a change in the determination result. The to return to the driving pattern before being changed by the selection drive pattern forced changing means 2
And a selective drive pattern return changing unit.

For this reason, only when the measured amount corresponding to each instrument is within the predetermined dangerous range, the measured amount is displayed by the corresponding long hand or short hand and the scale. The multi-display instrument can be automatically returned to the display state before the corresponding measured values enter the predetermined dangerous range.

Further, according to the multi-display instrument of the present invention described in claim 8, the selective drive pattern forcibly changing means determines that the plurality of measured quantities are simultaneously in the predetermined dangerous range respectively. During the operation, the drive pattern selection unit is configured to sequentially and cyclically select a plurality of the drive patterns corresponding to the plurality of measurement amounts determined by the determination unit to be in the respective predetermined dangerous ranges. Therefore, all measured values that fall within the predetermined danger range are indicated by the corresponding long hand or short hand and the scale.
It can be displayed sequentially without omission.

[Brief description of the drawings]

FIG. 1 is a basic configuration diagram of a multi-display instrument according to the present invention.

FIG. 2 is a front view of a combination meter having a multi-display instrument according to an embodiment of the present invention.

FIG. 3 is an enlarged front view of the multi-display instrument shown in FIG.

FIG. 4 is a side sectional view of the multi-display instrument shown in FIG. 2;

FIG. 5 is an enlarged front view of the pointer shown in FIG. 3;

FIG. 6 is a block diagram showing an electrical schematic configuration of the multi-display instrument of FIG. 2;

FIG. 7 is a memory area map of a RAM of the microcomputer shown in FIG. 6;

8 is a flowchart showing a process performed by a CPU according to a control program stored in a ROM of the microcomputer shown in FIG.

9 is a flowchart showing a process performed by a CPU according to a control program stored in a ROM of the microcomputer shown in FIG.

FIG. 10 is a flowchart showing processing performed by a CPU according to a control program stored in a ROM of the microcomputer shown in FIG.

FIG. 11 is a front view of a combination meter having a multi-display instrument according to another embodiment of the present invention.

[Explanation of symbols]

 10a Front panel (turning plate) 151 Dial 151a Dial front 151c to 151e Scale 151f Through-hole (point where needle shaft is inserted in dial) 153 Pointer 153b Long hand 153c Short hand 155 Look-up plate 157 Movement (drive source) 159 Hand Axis 21 Microcomputer 21a CPU 21b RAM 21c ROM 21A Drive pattern selection means 21B Selective drive pattern forced return means 21C Judgment means 21D Selective drive pattern forced change means 21E Second selected drive pattern return change means 23 Display scale designation means 25 Travel sensor ( Instrument) 27 Fuel sensor (instrument) 29 Water temperature sensor (instrument) L1, L3 interval

Continuation of the front page (72) Inventor Koichi Takao 1-7-1 Yokoi, Shimada-shi, Shizuoka Yazaki Keiki Co., Ltd. (72) Inventor Shinji Narama 1-7-1, Yokoi, Shimada-shi, Shizuoka Yazaki Keiki ( 56) References JP-A-54-10775 (JP, A) JP-A 55-40390 (JP, U) JP-A 63-83614 (JP, U) JP-B-4-73528 (JP, B2) (58) ) Surveyed field (Int.Cl. ⁷ , DB name) G01D 7/02 G01D 13/12 G01D 13/22 101

Claims (8)

(57) [Claims] 1. A plurality of scales corresponding to a plurality of instruments are rotatably inserted through a pointer shaft from the rear to the front of a dial formed on a front surface, and the pointer shaft is rotationally driven according to a measured amount. With the hands attached to the pointer shaft portion located in front of the dial, the pointer portion extending in the radial direction of the pointer shaft allows the measurement with a single scale among a plurality of scales on the front surface of the dial. In a multi-display instrument for indicating a scale position according to an amount, at least a part of the plurality of scales is arranged on the dial portion radially outward of the pointer shaft from another part of the scale. The pointer comprises a long hand and a short hand extending in the radial direction of the pointer shaft from two circumferentially spaced locations on the peripheral surface of the pointer shaft in the circumferential direction of the pointer shaft; The length of the long hand in the The length of the short hand in the radial direction is formed with a dimension corresponding to the interval in the radial direction from the position where the pointer shaft is inserted to the part of the scale, and the pointer shaft is inserted through the dial. Formed with a size corresponding to the distance in the radial direction from a location to the other part of the scale, the long hand conceals the short hand in a state where the long hand indicates the part of the scale, and the short hand is the other hand. A multi-display instrument, wherein a dial plate for concealing the long hand is provided in front of the hands in a state where a part of the scale is indicated. 2. The multi-display instrument according to claim 1, wherein the part of the scale is a scale that requires a higher resolution than the other part of the scale. 3. At least one of the part of the scale and the other part of the scale has an equal distance from a portion of the dial where the pointer shaft is inserted, and a circumferential direction of the pointer shaft. The multi-display instrument according to claim 1, wherein a plurality of the dials are arranged at the dial locations spaced apart from each other. 4. A driving source for rotating the pointer shaft, display scale specifying means for specifying a single scale among the plurality of scales, and a scale corresponding to a specified state of the display scale specifying means. Driving pattern selecting means for selecting a driving pattern of the driving source for indicating one of the long hand and the short hand on a scale position corresponding to a measurement amount of an instrument corresponding to a scale, the driving pattern 4. The multi-display instrument according to claim 1, wherein the drive source is driven by a drive pattern selected by a selection unit. 5. The display scale designating means is configured to designate a specific single scale other than a specific one of the plurality of scales, and the driving pattern selecting means includes a display scale. 5. The apparatus according to claim 4, wherein the drive pattern corresponding to the specific and single scale is selected in a state where the scale is not specified by the specifying unit.
Multi-display instrument as described. 6. The drive pattern corresponding to the another single scale selected by the drive pattern selecting means in accordance with the designated state of the display scale specifying means, and the other single scale by the display scale specifying means. 6. The multi-display instrument according to claim 5, further comprising a selective drive pattern forcible return means for returning to the drive pattern corresponding to the specific single scale after a lapse of a predetermined time from designation of one scale. 7. A determining means for determining whether or not each measured value corresponding to the plurality of instruments is within a predetermined dangerous range, and the determining means determining that the measured value is within a predetermined dangerous range. And selecting the drive pattern selected by the drive pattern selecting means to be changed to the drive pattern corresponding to the scale corresponding to the measurement amount determined by the determining means to be in the predetermined risk range. A drive pattern compulsory change unit, and a drive pattern selection unit that selects the drive pattern selection unit in response to a determination result of the determination unit changing from a determination that the measured amount is within the predetermined risk range to a determination that the measured amount is not within the predetermined risk range The drive pattern to be changed from the drive pattern changed by the selected drive pattern forcible changing unit before the change by the selected drive pattern forcible changing unit. Second to return to the drive pattern
7. The multi-display instrument according to claim 4, further comprising a selection drive pattern return changing unit. 8. The forcible selection drive pattern changing means,
While the determination means determines that the plurality of measured quantities are respectively in the predetermined risk range at the same time, the drive pattern selection means determines that the plurality of measurement quantities are determined to be in the respective predetermined risk ranges. 8. The multi-display instrument according to claim 7, wherein the plurality of drive patterns corresponding to the measured amount are sequentially and cyclically selected.