CN1199170A - Rotating speed indicating device for operating machine - Google Patents
Rotating speed indicating device for operating machine Download PDFInfo
- Publication number
- CN1199170A CN1199170A CN98114718A CN98114718A CN1199170A CN 1199170 A CN1199170 A CN 1199170A CN 98114718 A CN98114718 A CN 98114718A CN 98114718 A CN98114718 A CN 98114718A CN 1199170 A CN1199170 A CN 1199170A
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- Prior art keywords
- rotary district
- district
- rotary
- specified
- speed
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P1/00—Details of instruments
- G01P1/07—Indicating devices, e.g. for remote indication
- G01P1/08—Arrangements of scales, pointers, lamps or acoustic indicators, e.g. in automobile speedometers
- G01P1/10—Arrangements of scales, pointers, lamps or acoustic indicators, e.g. in automobile speedometers for indicating predetermined speeds
- G01P1/106—Arrangements of scales, pointers, lamps or acoustic indicators, e.g. in automobile speedometers for indicating predetermined speeds by comparing the time duration between two impulses with a reference time
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D7/00—Indicating measured values
- G01D7/02—Indicating value of two or more variables simultaneously
- G01D7/08—Indicating value of two or more variables simultaneously using a common indicating element for two or more variables
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/46—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring amplitude of generated current or voltage
- G01P3/465—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring amplitude of generated current or voltage by using dynamo-electro tachometers or electric generator
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Instrument Panels (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Harvester Elements (AREA)
- Indicating Measured Values (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The invention provides a rotary speed presentation device of an operation machine, which sets the relationship between the motion quantity of the rotary speed of an engine and the of an induction portion (17 a) of a rotary speed presentation unit (17) into a linear relationship, specifically speaking, the presentation precision of the induction portion (17 a) in a high rotating region (F) for operation which is relative to unit rotary speed is higher than the presentation precision which does not reach to rotary speed of the high rotary region (F) for operation, thereby operators can easily recognize the change of the rotary speed with eyes, and can carry out micro-regulation for common rotary speed of the engine in high rotating region (F) for operation.
Description
The present invention relates to the indication device of the engine rotary speed of working rigs such as united reaper or tractor, say definitely, the present invention with operation with high Rotary District in or the technology of the operation of engine rotary speed and indication device thereof set in the specified Rotary District in this high Rotary District, set relevant.
In the prior art, usually, the engine rotary speed of working rig is set in the scope that the high rotation speed in its rotational speed allowable district closely is close to, and this scope is the high Rotary District that is suitable for operation (below, be called " high Rotary District is used in operation ").Being set in engine rotary speed in the specified Rotary District of operation with the specified output of the generation in the high Rotary District (majority is the highest output usually) is the common practice.
In existing analog speedometer, its pointer is to move along setting the road warp along with the change of engine rotary speed, and along with the change of engine rotary speed, the move angle of pointer is linear variation (seeing the double dot dash line among Fig. 3).
As described above, before operation begins, engine rotary speed is set in the specified Rotary District of operation with high Rotary District, while watch tachometer gage to operate the acceleration control lever.In the whole indicating area of engine rotary speed, operation is with near the narrow interval just high rotation speed in high Rotary District, for example, high rotation speed be 3200rp with occasion, operation is 2400-3200rpm with high Rotary District.Therefore, in existing tachometer gage, operation accounts for 1/4 of pointer amount of movement whole process with high Rotary District, promptly when the move angle whole process of pointer be 120 when spending, operation is equivalent to 30 degree approximately with high Rotary District.
Like this, operation commonly used with high Rotary District represent the width of cloth be do not use low rotation territory, lateral areas at the very start represent 1/3 of the width of cloth because during the operation of setting engine rotary speed, the amount of movement of pointer is little, so it is very difficult to observe tachometer gage, as the expression means, its observability is unbalanced.Therefore, wish to enlarge the amount of movement of pointer, can easily see the variation of operation clearly with the rotational speed of the engine of high Rotary District.But, under the above-mentioned condition of the linear variation of move angle that changes pointer along with engine rotary speed, when the expression width of cloth of high Rotary District increases, total expression width of cloth of tachometer gage is increased, thereby produce the situation that makes its layout on panel board run into inconvenience etc.
In addition, the kind of corresponding crop when the operation duty ratio is light usually, is considered from noise or fuel cost, will set sometimes than lower slightly the rotational speed in specified Rotary District, therefore will regulate with the rotational speed of high Rotary District operation.But, in existing structure and since operation with high Rotary District represent that a shared ratio is little, when the operator wants to change above rotational speed, the difficulty rotational speed is finely tuned.Therefore, in this occasion, the limit sees that it is difficult that the operation of engine rotary speed is set on the tachometer gage limit.
The 1st purpose of the present invention provides a kind of rotating speed indicating device, this indication device the expression interval of big expression rotational speed whole process, observe operation easily changes, carries out easily the setting operation to engine rotary speed with the rotational speed of high Rotary District.
And when operator's actual set engine rotary speed, the operator tends to engine rotary speed is set in intermediate value or specified rotational speed in the specified Rotary District.Therefore, the operator often sees that the tachometer gage limit cautiously operates the acceleration control lever in the limit.As long as engine rotary speed is set in the specified Rotary District, roughly just do not have previous problem in the operation, because the scope of the specified Rotary District of expression is arranged, so when the operator sets engine rotary speed, psychologically, make the engine rotary speed of setting be positioned at the middle position of specified Rotary District easily, or consistent with specified rotational speed.
But above-mentioned middle position or specified rotational speed for example, are meant the rotational speed of 3000rpm, as for the rotating speed indicating means, represent with line (or point) in specified Rotary District.Therefore, engine rotary speed in the specified Rotary District of setting operation is to be relatively easy to, instruction unit almost can indicate engine rotary speed to change more exactly, but, allegedly often be that pointer moves and is over, be difficult to but see that when control lever was quickened in operation, pointer surpassed predetermined amount easily and indicates.Just because of like this, it is difficult making the middle position of pointer and specified Rotary District or specified rotational speed consistent, uses up so the operator will be used to set the setting-up time of engine rotary speed easily.
Therefore, another object of the present invention provides a kind of rotating speed indicating device, and this indication device and the specific energy mutually of prior art realize that easily the limit sees that the tachometer gage limit is rotated the setting operation of speed to operation with the specified Rotary District in the high Rotary District.
In order to realize above-mentioned purpose, the rotating speed indicating device of working rig of the present invention has the architectural feature that claim 1 is put down in writing.
In existing simulation formula tachometer gage, the scale of expression engine rotary speed is set by equi-angularly space, and the move angle of the pointer of corresponding unit rotational speed is set for equal.And in the present invention, rotating speed indicating device makes operation existing big with the rotational speed change amplitude ratio of high Rotary District.That is to say, set for and make operation not reach the height of operation with the zone of high Rotary District with the rotating speed indicating ratio of precision of high Rotary District.Therefore, the operator can easily confirm the change of rotational speed with eyes, can the limit sees that operation commonly used carries out trickle rotational speed with the rotating speed indicating means limit of high Rotary District and regulate and set or fine adjustment is operated.At this moment, because it is little with the rotational speed of high Rotary District change amplitude variation not reach operation, and above-mentioned operation enlarges with the amount of movement of the instruction unit of high Rotary District, thereby is convenient to observation, whole amount of movements of instruction unit also unlike existing greatly.Therefore, can keep the space of being placed restrictions on setting, also can improve the function of rotating speed indicating device.That is to say, rotating speed indicating device is maximized, and can easily confirm operation commonly used change with the rotational speed of high Rotary District with eyes, and, can see that the rotating speed indicating device limit easily is rotated speed setting operation or fine adjustment in the limit.
In addition, above-mentioned operation with high Rotary District in, the expression precision of the indicating area that does not reach specified Rotary District rotational speed in the high Rotary District of expression ratio of precision of the unit rotational speed of the instruction unit of corresponding specified Rotary District is low, owing to be above-mentionedly to set like that, so following advantage is arranged.
When the operator when engine rotary speed is set in specified Rotary District, the rotational speed that normally makes engine goes up lift operations gradually from the high rotation of slow-speed side direction side, when the change width of cloth that does not reach specified Rotary District with the rotation of the specified Rotary District in high Rotary District change amplitude ratio when operation dwindles, just carry out setting operation easily to specified Rotary District.
Because the expression width of cloth of specified Rotary District is little (representing with existing 1/2 width of cloth or wide line), compared with the existing, it is difficult that the setting operation in specified Rotary District becomes.But the operator can resemble the anticipation setting operation of realizing above-mentioned to specified Rotary District, in existing situation, is to realize that the operator plans to set idea intermediate value or specified rotational speed to specified Rotary District.Make simultaneously be difficult to see clearly according to engine rotary speed change and the situation of mobile instruction unit obtains relaxing.Go out in other words, because the expression width of cloth of specified Rotary District has dwindled, the blending operation as rotational speed has become roughly compared with the existing, can make setting operation easy, and shorten the time of setting operation.
Therefore, the viewpoint of human engineering from research operator's operation psychology, because the expression amplitude ratio of specified Rotary District is existing little in the rotating speed indicating device, on the contrary, making the operator set engine rotary speed to specified Rotary District has coincide easily, and, can simply promptly carry out setting operation.
As above-mentioned, because the amount of movement of engine rotary speed and pointer becomes nonlinear relationship, so rotating speed indicating device of the present invention, can confirm to the setting operation of operation with eyes with high Rotary District, also can easily carry out the fine adjustment operation simultaneously, also can realize operating to simply promptly regulating of specified Rotary District, like this, even the Rotary District higher than specified Rotary District arranged, also can see that the rotating speed indicating device limit easily is rotated the setting operation of speed in the limit, in a word the setting operation that can realize ideal.
Other purpose of the present invention, effect, effect and feature can be learnt from the following description.
1 figure is the outboard profile of united reaper, and this machine has adopted rotation indication device of the present invention;
Fig. 2 is the planimetric map of the united reaper manoeuvre portion of Fig. 1;
Fig. 3 is the curve map of relation of the amount of movement of expression engine rotary speed and tachometer gage pointer;
Fig. 4 is the planimetric map of rotating speed indicating device;
Fig. 5 is the block diagram of expression according to the generating signal tachometer gage action of generator;
Fig. 6-the 10th, the other curve map of relation of expression engine rotary speed and tachometer gage pointer amount of movement.
Below, the accompanying drawings embodiments of the invention.Below be that example describes just with the such working rig of united reaper.
In the united reaper of in Fig. 1, representing, the 1st, reaping part, the 2nd, operating portion, the 3rd covers band running gear, the 4th, threshing apparatus, the 5th, engine, the 6th, wheel box.As depicted in figs. 1 and 2, manoeuvre portion 2 be by administer body turn to or turning-bar 8, metering device 9, the control stand 10 that has turning-bar 8 and metering device 9, the operator's seat 11 of the lifting of reaping part 1, the control box 12 and the floor pedal 13 that are configured in the left side of operator's seat 11 constitute.
As shown in Figure 4, metering device 9 has the tachometer gage (example of rotating speed indicating device) 17 of analog representation engine rotary speed.The indication of this tachometer gage 17 is detected, and to mobilize pointer (example of the instruction unit) 17a of face rotational speed be along with the change of engine rotary speed is mobile along set path (this occasion is an arc track).
F be in the mobile route of pointer 17a show engine rotary speed its allow in the rotational speed district scope that high rotation speed closely is close to, its expression is suitable for the high Rotary District of operation, claims this district to use high Rotary District for operation.Operation is made of the prompting Rotary District d of suitable Rotary District a, light load Rotary District and the alarm Rotary District c of critical Rotary District with the angular range of high Rotary District F.Represent specified Rotary District in operation with the b among the suitable Rotary District a under the high Rotary District.Usually, engine rotary speed is set among the specified Rotary District d that produces specified output (usually, majority is the highest output).
The rotational speed of engine 5 is quickened control lever 7 (Fig. 1, Fig. 2) setting with the hand that is configured in the manoeuvre portion 2.This is set, and for example the speed regulating control bar (not shown) of usefulness engine 5 and wire rope (not shown) and hand acceleration control lever 7 interlocks just can be realized.
In the tachometer gage 17 of metering device 9, will be equivalent to operation and set for bigger with the move angle under the high Rotary District than not reaching operation with the move angle (example of amount of movement) of the pointer 17a of the unit rotational speed under the high Rotary District.
That is to say, be transformed into operation bigger with the angular range under the high Rotary District than the arithmetic proportion in the full rotation district of its corresponding engine rotary speed.Engine rotary speed by the control device 43 (Fig. 5) that carries out such conversion after, show by tachometer gage 17.
For example, when high rotation speed is 3200rpm, operation is when being 2400rpm-3200rpm under the high Rotary District, and operation with high Rotary District F to the arithmetic proportion in full rotation district is:
(3200-2400)/3200＝1/4＝25％。
When the full move angle of pointer 17a is decided to be 100 when spending, operation in the prior art is 25 degree with the angle of high Rotary District F correspondence.And in the present invention,,, make operation expand as 45 degree approximately with the angle of high Rotary District F correspondence by the electric processing of control device 43 by above-mentioned condition, so just see tachometer gage 17 clearly with eyes easily.
That is to say that with regard to pointer 17a pointing accuracy, operation does not act on pointing accuracy height among the high Rotary District F with the pointing accuracy among the high Rotary District F than reaching.
As shown in Figure 5, the generating frequency (pulse signal) that is produced by generator 41 is detected by frequency detector 42, and according to the information that frequency detector 42 detects, control device 43 moves tachometer gage 17.That is to say, detect 1 week of corresponding engine 5 of 1 cycle (output shaft of the engine) rotation of the alternating electromotive force that produces by generator 41, this is detected information by in frequency detector 42 input control devices 43.Then, control the move angle of pointer 17a by the electric processing of control device 43.So, the amount of movement of pointer 17a of just having realized making corresponding unit rotational speed when not reaching operation with high Rotary District F than little during with high Rotary District F in operation, and, also realized making corresponding operation with the amount of movement of the pointer 17a of the unit rotational speed in the specified Rotary District d among the high Rotary District F than operation with high Rotary District F in and lacking not in specified Rotary District d the time.
Generally speaking, with high Rotary District F, its ratio of representing angle is little to the expression angle of specified Rotary District d than the operation that enlarges the expression angle.So, compared with the prior art, what want difficult to the setting operation that starts rotational speed of specified Rotary District d, realize but coincide to compare than being easier to engine rotary speed that makes setting and specified rotational speed.That is, the operator only sets engine rotary speed in specified Rotary District d be to be relatively easy to, and, be the setting that can simply promptly be rotated speed.
In a word, operation with high Rotary District F in, the amount of movement of the pointer 17a of the unit operation amount of corresponding acceleration control lever 7 is big, the sensitivity of tachometer gage 17 is comparison sensitivities, in specified Rotary District d, the amount of movement of the pointer 17a of the corresponding unit operation amount of quickening control lever 7 is little, and the sensitivity of tachometer gage 17 is more insensitive or slowly.
That is, represent in the zone that with high Rotary District F with regard to the expression precision of pointer 17a, the non-specified rotary area of expression ratio of precision of d is low in the specified Rotary District in operation.
So far, the relation of the deflection angle of the engine rotary speed of above-mentioned tachometer gage 17 and pointer is represented by the solid line in the plot of Fig. 3.Can know from this plot, narrow Rotary District in the universe of engine rotary speed extended for operation with high Rotary District F, the deflection angle of pointer 17a is replaced by the big of comparison, and the deflection angle of the pointer 17a of the corresponding specified Rotary District d in extended Rotary District narrows down little on the contrary.And, can also know that from the plot of Fig. 3 the amount of movement of the pointer 17a of the unit rotational speed of corresponding specified Rotary District d is more with the amount of movement of the pointer 17a of the Rotary District below the high Rotary District F than operation.
Therefore, operation with high Rotary District F in, along with the action of the front and back of manual acceleration control lever 7, the indication that corresponding engine rotary speed changes is slowly basically, therefore is rotated the fine adjustment of speed easily.And, in specified Rotary District d, it is the comparison sensitivity that the corresponding engine rotary speed that manually quickens the front and back action of control lever 7 changes, but the adjusting of the engine rotary speed among the d of Rotary District become, and a little is difficult, but can adjust almost consistent with specified rotational speed engine rotary speed, its degree of regulation is good.
As shown in Figure 4, revolve with height among the district F in the operation of tachometer gage 17 correspondences, with green represent the portion that represents 38 of suitable Rotary District a, with the yellow portion that represents 40 that represents to point out the portion that represents 39 of Rotary District b, represents alarm Rotary District c with redness, whether so, can make out engine rotary speed rapidly with eyes normal.If the 38a of expression portion of specified Rotary District d that will be arranged in normal Rotary District a has again recognized with regard to easier with other color showing of blueness etc.And, by load warning light 37 and alarm buzzer are set, when (not shown) pointer 17a is positioned at prompting Rotary District b, the load warning light is lighted, when pointer 17a is positioned at alarm Rotary District c, the load warning light is lighted, alarm buzzer is also made a sound, so just can make the operator in time discover the abnormal conditions of load.
In addition, in the metering device 9 of Fig. 4, the 29th, rice husk fills up warning light, the 30th, and mower stops warning light, the 31st, signal lamp, the 32nd, water temperature warning light, the 33rd, machine oil warning light, the 34th, charge light, the 35th, the meter, the 36th of accumulation duration of runs of expression working rig, fuel stock display lamp.
Another embodiment, when handling with control device 43, the relation of the deflection angle of engine rotary speed and tachometer gage pointer is not limited to the curve of the plot represented with solid line among Fig. 3.The relation of such plot that also can be shown in Fig. 6-10.
In Fig. 6, the relation of the deflection angle of the pointer of the rotational speed of engine 5 and tachometer gage 17 is to be the camber line deltoid that bloats downwards.That is to say that Fig. 6 is non-linear curve, when engine rotary speed was high, the deflection angle of pointer 17a increased, and during with the deflection angle increase of the pointer 17a among the high Rotary District F, just was easy to see clearly tachometer gage 17 in operation.But in specified Rotary District d, the deflection angle of pointer 17a reduces, and the setting accuracy of specified rotational speed improves.
As shown in Figure 7, the amount of movement of the pointer 17a of the corresponding unit rotational speed of tachometer gage 17 does not reach operation big with F zone, high Rotary District in operation with the ratio among the high Rotary District F, is the curve map of downward folding shape.Therefore, can only show operation with high Rotary District F with do not reach operation with the height that concerns precision between the high Rotary District F, but operation with high Rotary District F in, can not show the height that concerns precision between specified Rotary District d and the non-specified Rotary District.
As shown in Figure 8, the amount of movement of the pointer 17a of the corresponding unit rotational speed of tachometer gage 17 is linear change basically, still, operation little with the non-specified Rotary District of ratio of the specified Rotary District d among the high Rotary District F, is the curve map of upwards rolling over shape.Therefore, can only be presented at operation with the height that concerns precision between specified Rotary District d among the high Rotary District F and the non-specified Rotary District.But the degree of tilt of the figure line of non-specified Rotary District can be than urgency shown in Figure 8 or slow.
Shown in the solid line of Fig. 9, the amount of movement of the pointer 17a of the corresponding unit rotational speed of tachometer gage 17, operation with the ratio among the high Rotary District F operation big with the zone below the high Rotary District F, and, with high Rotary District F in do not reach zone little of specified Rotary District d with the ratio of the specified Rotary District d among the high Rotary District F in operation in operation, when in operation during with regional more than the specified commentaries on classics district d of high Rotary District F, identical with specified Rotary District d is so its plot is the curve that 2 warpages are arranged.
Again as shown in figure 10, the amount of movement of the pointer 17a of the corresponding unit rotational speed of tachometer gage 17, operation with the ratio among the high Rotary District F operation big with the zone below the high Rotary District F, and, revolve zone little that district F do not reach specified Rotary District d in operation with high with the ratio among the specified Rotary District d of high Rotary District F in operation, and distinguish the little of d with specified the revolving of the ratio in the zone more than the specified Rotary District d of high Rotary District F in operation.So its plot is the curve that 3 warpages are arranged.
In a word, in the embodiment of above explanation, the expression of engine rotary speed is that employing is analog.When rotating speed indicating device of the present invention being used for the indication device of numeral, for example, in operation with high Rotary District F, its rotational speed is 3100,3101 ..., 3199,3200 o'clock, represent with corresponding 1 scale realization of 1rpm high precision, realize low accuracy representing with the zone below the high Rotary District F with corresponding 1 scale of 10rpm in operation.
As described above, the rotational speed of engine 5 be set by the manual acceleration control lever 7 that is configured in manoeuvre portion 2, this setting, for example, be the speed regulating control bar (not shown) interlock realization that makes manual acceleration control lever and engine by the wire rope (not shown).At this moment, the relation of manually quickening the variable quantity of the unit operation amount of control lever 7 and engine rotary speed is to be nonlinear.For example, at this moment the variation of operation engine rotary speed of the corresponding unit operation amount of manually quickening control lever 7 in high Rotary District F be than do not reaching operation with the zone of high Rotary District F in the variation of engine rotary speed of unit operation amount of corresponding manually acceleration control lever 7 little.
The operational ton that in addition, also can be in the structure of rotating speed indicating device of the present invention will manually quicken control lever 7 with potential difference meter converts electric signal to, quickens operation and the control corresponding circuit is set with the actuator of electro-motor etc.
Also can make the instruction unit of the detected engine rotary speed of indication, be not limited to the structure of the such straight 17a of indication of the instruction unit that moves along the pathway of setting along with the engine rotary speed change of tachometer gage 17 of analog expression.For example, can use the tachometer gage 17 of the bar-shaped stretching structure of LED (light emitting diode).At this moment, make the flash of light variation length of LED, in the ratio of high Rotary District length in low Rotary District, and, make weak point at specified Rotary District d.
Claims (4)
1, the rotating speed indicating device of working rig, has rotating speed indicating unit (17), this rotating speed indicating unit (17) is provided with the instruction unit (17a) of the detected engine rotary speed of indication, it is characterized in that, in the expression zone of above-mentioned rotating speed indicating unit (17), set the expression precision height that makes operation not reach the zone of high Rotary District (F) with the expression ratio of precision of the unit rotational speed of the corresponding above-mentioned instruction unit (17a) in high Rotary District (F) for.
2, according to the rotating speed indicating device of the working rig of claim 1, it is characterized in that, above-mentioned instruction unit (17a) can move along set path, and, make in this set path operation bigger than the amount of movement in the zone that does not reach high Rotary District (F) with the amount of movement of the unit rotational speed of the corresponding above-mentioned instruction unit (17a) in high Rotary District (F).
3, according to the rotating speed indicating device of the working rig of claim 1 or 2, it is characterized in that it is low to make above-mentioned operation not reach the expression precision in zone of specified Rotary District (d) with the expression ratio of precision of the unit rotational speed of the above-mentioned instruction unit (17a) of the corresponding specified Rotary District (d) in high Rotary District (F).
4, according to the rotating speed indicating device of the working rig of claim 3, it is characterized in that it is littler than the amount of movement in the zone that does not reach specified Rotary District (d) to make above-mentioned operation revolve the amount of movement of unit rotational speed of above-mentioned instruction unit (17a) of Rotary District (d) with corresponding specified in high Rotary District (F).
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11463697 | 1997-05-02 | ||
| JP114636/1997 | 1997-05-02 | ||
| JP114636/97 | 1997-05-02 | ||
| JP10652798A JP3497379B2 (en) | 1997-05-02 | 1998-04-16 | Work machine |
| JP106527/98 | 1998-04-16 | ||
| JP106527/1998 | 1998-04-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1199170A true CN1199170A (en) | 1998-11-18 |
| CN1101548C CN1101548C (en) | 2003-02-12 |
Family
ID=26446646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98114718A Expired - Lifetime CN1101548C (en) | 1997-05-02 | 1998-05-02 | Rotating speed indicating device for operating machine |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3497379B2 (en) |
| KR (1) | KR100292235B1 (en) |
| CN (1) | CN1101548C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826222A (en) * | 2009-02-16 | 2010-09-08 | 福特全球技术公司 | The information display system that is used for vehicle |
| CN102358189A (en) * | 2006-10-25 | 2012-02-22 | 丰田自动车株式会社 | Accelerator level display device |
| CN108307655A (en) * | 2015-07-29 | 2018-07-20 | 罗伯特·博世有限公司 | Device and method for inputting and showing numerical value and corresponding system |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5291525B2 (en) * | 2009-04-27 | 2013-09-18 | 株式会社クボタ | Combine display |
| JP5234072B2 (en) | 2010-09-03 | 2013-07-10 | 株式会社デンソー | Pointer display device |
| US8983739B2 (en) | 2012-11-30 | 2015-03-17 | Caterpillar Inc. | Real time pull-slip curve modeling in large track-type tractors |
| US8965640B2 (en) * | 2012-11-30 | 2015-02-24 | Caterpillar Inc. | Conditioning a performance metric for an operator display |
-
1998
- 1998-04-16 JP JP10652798A patent/JP3497379B2/en not_active Expired - Fee Related
- 1998-05-02 CN CN98114718A patent/CN1101548C/en not_active Expired - Lifetime
- 1998-05-02 KR KR1019980015838A patent/KR100292235B1/en active IP Right Grant
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102358189A (en) * | 2006-10-25 | 2012-02-22 | 丰田自动车株式会社 | Accelerator level display device |
| CN102358189B (en) * | 2006-10-25 | 2014-05-07 | 丰田自动车株式会社 | Accelerator level display device |
| CN101826222A (en) * | 2009-02-16 | 2010-09-08 | 福特全球技术公司 | The information display system that is used for vehicle |
| CN108307655A (en) * | 2015-07-29 | 2018-07-20 | 罗伯特·博世有限公司 | Device and method for inputting and showing numerical value and corresponding system |
| CN108307655B (en) * | 2015-07-29 | 2020-12-01 | 罗伯特·博世有限公司 | Device and method for inputting and displaying numerical values and corresponding system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3497379B2 (en) | 2004-02-16 |
| KR19980086723A (en) | 1998-12-05 |
| CN1101548C (en) | 2003-02-12 |
| KR100292235B1 (en) | 2001-06-01 |
| JPH1124612A (en) | 1999-01-29 |
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Granted publication date: 20030212 |