[go: up one dir, main page]

WO2008146300A1 - A device for transmitting rotary motion and method thereof - Google Patents

A device for transmitting rotary motion and method thereof Download PDF

Info

Publication number
WO2008146300A1
WO2008146300A1 PCT/IN2007/000268 IN2007000268W WO2008146300A1 WO 2008146300 A1 WO2008146300 A1 WO 2008146300A1 IN 2007000268 W IN2007000268 W IN 2007000268W WO 2008146300 A1 WO2008146300 A1 WO 2008146300A1
Authority
WO
WIPO (PCT)
Prior art keywords
shaft
rotary motion
toothed gear
transmitting rotary
gear
Prior art date
Application number
PCT/IN2007/000268
Other languages
French (fr)
Inventor
P. Santhana Krishnan
K. Murhumanickam
M. Manivannan
Original Assignee
Pricol Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pricol Limited filed Critical Pricol Limited
Priority to BRPI0721693-9A2A priority Critical patent/BRPI0721693A2/en
Publication of WO2008146300A1 publication Critical patent/WO2008146300A1/en

Links

Classifications

    • 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
    • G01P1/04—Special adaptations of driving means
    • 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
    • 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
    • G01P3/49—Devices characterised by the use of electric or magnetic means for measuring angular speed using eddy currents
    • G01P3/495—Devices characterised by the use of electric or magnetic means for measuring angular speed using eddy currents where the indicating means responds to forces produced by the eddy currents and the generating magnetic field

Definitions

  • This invention relates to a device and method for transmitting rotary motion from a driver shaft onto a second shaft for measuring angular speed of said rotary motion
  • said device comprises: a driver shaft with toothed gear meshed with that of second shaft wherein axis of the driver shaft is at an angle with that of the second shaft, and a measuring device fixed to the second shaft.
  • the method comprises meshing the driver shaft toothed gear with that of the second shaft wherein the driver shaft axis is at an angle with that of the second shaft, and fixing the second shaft with a measuring device.
  • the driving shaft axis is inline with the axle (7). But this is not desired since driving shaft housing fouling with Head lamp in vehicle. Hence it is desired that the driving shaft axis is offset towards left (From Inst cluster viewing angle) with respect to Axle (7) inorder to prevent driving shaft housing fouling with Head lamp in vehicle.
  • the driving shaft is in an angle with respect to second shaft (2) inorder to maintain the cable in-line / straight & prevent sharp bend at mounting condition.
  • the driving shaft angle will compensate the Instrument cluster mounting angle in vehicle & always maintain the drive shaft perpendicular to ground level. Hence cable sharp bend is eliminated at assembly condition in vehicle. This inturn prevents ovality & reduces friction of inner cable / flexible shaft during rotation. Hence enhancing the speed measuring device quality.
  • This invention also deals with the above mentioned problems and proposes a solution.
  • the invention WO9852048 is related to a geared measuring device, wherein the rotation of the drive shaft can be transmitted to an intermediate shaft via a first pair of toothed gears and from the intermediate shaft to a measuring device drive mechanism via a second pair toothed gears.
  • a first toothed gear is arranged on the drive shaft and a second toothed gear is arranged on the measuring device.
  • the parts of the toothed gear pairs are configured on the intermediate shaft as a cylindrical worm and at least one toothed gear has a semi-globoidal shape gear.
  • Instant invention also addresses all the problems as mentioned above. At the same time, it differs from the prior art WO9852048 in the way in which the desired objective is achieved.
  • Instant invention provides for more efficient and cost effective means of solving the problem.
  • Instant invention has come out with a method and a device, wherein there is no need for the intermediate shaft for transfer of energy to measure the speed of rotation. Accordingly, the invention provides for more accurate measurement of the speed of rotation.
  • avoiding intermediate shaft in the invention will result in more efficient transfer of energy. Further, this avoids wastage of energy because of indirect way of transfer of the rotary energy from first shaft to second shaft via intermediate shaft as stated in prior art. This will further reduce wear and tear of the device arid will also reduce the cost of manufacturing of the device.
  • Figure 1 shows the schematic diagram of the transmission of Instrument movement containing Spindle, First gear wheel, Second gear wheel & measuring device.
  • Figure Ia shows perspective view of figure 1
  • Figure 2 shows instant invention comprising speed indicator pointer along with odometer.
  • Figure 2a shows front view of figure 2.
  • Figure 2b shows back view of figure 2.
  • Figure 3a back view of instant invention
  • Figure 3b side view of instant invention
  • Figure 3c front view of instant invention
  • Figure 3d perspective view of instant invention
  • the primary object of the invention is to develop a device for transmitting rotary motion from a driver shaft onto a second shaft for measuring angular speed of said rotary motion.
  • Another object of this invention is to develop a driver shaft with toothed gear meshed with that of second shaft wherein axis of the driver shaft is at an angle with that of the second shaft.
  • a further objective of the invention is to develop a measuring device fixed to the second shaft.
  • Another main objective of the invention is to develop a method for transmitting rotary motion from a driver shaft on to a second shaft for measuring the angular speed of said rotary motion.
  • Yet another objective of the invention is to provide for meshing the driver shaft toothed gear with that of the second shaft wherein the driver shaft axis is at an angle with that of the second shaft Still another objective of the invention is to provide for fixing the second shaft with a measuring device.
  • the invention provides a device for transmitting rotary motion from a driver shaft onto a second shaft for measuring angular speed of said rotary motion, said device comprises: a driver shaft with toothed gear meshed with that of second shaft wherein axis of the driver shaft is at an angle with that of the second shaft, and a measuring device fixed to the second shaft.
  • This also provides for a method for transmitting rotary motion from a driver shaft on to a second shaft for measuring the angular speed of said rotary motion, said method comprising steps of: meshing the driver shaft toothed gear with that of the second shaft wherein the driver shaft axis is at an angle with that of the second shaft, and fixing the second shaft with a measuring device.
  • the primary embodiment of the invention is a device for transmitting rotary motion from a driver shaft onto a second shaft for measuring angular speed of said rotary motion, said device comprises: a driver shaft with toothed gear meshed with that of second shaft wherein axis of the driver shaft is at an angle with that of the second shaft, and a measuring device fixed to the second shaft.
  • the rotary motion of the second shaft is same as that of the driver shaft.
  • the angle is 10° to 80°.
  • the toothed gear is worm or helical gear.
  • toothed gear of the second shaft is meshed with that of a horizontal shaft for counting the rotary motion.
  • eddy current principle is used for measuring the angular speed.
  • the device measures angular speed in automobile.
  • Another main embodiment of the present invention is a method for transmitting rotary motion from a driver shaft on to a second shaft for measuring the angular speed of said rotary motion, said method comprising steps of: meshing the driver shaft toothed gear with that of the second shaft wherein the driver shaft axis is at an angle with that of the second shaft, and fixing the second shaft with a measuring device.
  • the speed is measured using eddy current principle.
  • toothed gear of the second shaft is meshed with that of a horizontal shaft for counting the rotary motion.
  • the method measures angular speed in automobile.
  • the Spindle holds the first toothed gear (2) and measuring device contains the second toothed gear (3) wherein the first toothed gear meshes directly with second toothed gear.
  • the meshing angle between first toothed gear and second toothed gear varies from 10° to 60°.
  • the first toothed gear & second toothed gear are designed as helical gear.
  • the measuring device carries Axle (7) wherein the speed / RPM indicating pointer (8) is fitted to the Axle.
  • the frame holds the Horizontal shaft (6) in which second toothed gear is meshed with Horizontal shaft for motion transmission to Odometer / revolution counter (9).
  • the horizontal shaft has worm gear.
  • first toothed gear Power / motion from flexible shaft / cable is transmitted to first toothed gear through spindle.
  • the power in-turn is transmitted to second toothed gear in which first toothed gear is directly meshed with second toothed gear.
  • the second toothed gear distributes the motion / power to both speed measuring device & Horizontal shaft for counting revolution (Odometer).
  • Task of the invention is it therefore, an Instrument movement with a transmission on admits, with which, the turn of the drive shaft / spindle is transferable over a first tooth wheel mating directly over a second toothed gear which distributes motion / power to speed measuring device & revolution counter through horizontal shaft, can simply be mounted and only little building area is required.
  • This task according to invention by the fact it is drawn that two gear wheel are implemented as worm / helical gears.
  • the invention has the advantage that intermediate shaft is not required for motion transmission from first gear wheel to second gear wheel.
  • Horizontal shaft / intermediate shaft is required only for motion transmission from second gear wheel to Odometer or revolution counter.
  • horizontal shaft can be eliminated when the measuring device contains only speed / RPM indicator without revolution counter / Odometer.
  • the first gear wheel & second gear wheel rotates in same direction having transmission ratio 1:1 and gear meshing angle can be varied from 10° to 60° or even upto 80°. This results in axis offset between Spindle & Speed indicating pointer.
  • the worm gear wheels are small and nevertheless quiet transmission, with which the potential danger of struck up / blocking is impossible. Further worm gear wheels can be produced by injection molding process. Thus Instrument movement indicating speed / RPM works, under eddy current principle is simple and long-lived construction unit.
  • the measuring device contains a magnet (10), Magnet cover (11), Temperature compensator (12) which are integrated with second gear wheel. This in-turn is surrounded by a cup drag (13) and the same tends to rotate the Speed indicating pointer. It also has a spring spiral (14).
  • Figure 1 shows the schematic diagram of the transmission of Instrument movement containing Spindle, First gear wheel, Second gear wheel & measuring device.
  • Figure 2 shows the schematic diagram of the transmission of Instrument movement containing Frame, Spindle, First gear wheel, Second gear wheel & measuring device.
  • Measuring device includes Magnet, Compensator, Magnet cover, Axle, Spring spiral, Cup damping & Speed indicating pointer.
  • the present invention relates geared speed / revolution indicating device, where in the rotation of Spindle, the drive shaft (1) is transmitted directly to an measuring mechanism (4) via a pair of toothed gears (2, 3).
  • One toothed gear (1) is arranged on the spindle (1) and another toothed gear is arranged on the measuring device (4).
  • the toothed gears (1, 2) are configured as worm or helical gear.
  • the Instrument movement works under eddy current principle.
  • the Horizontal shaft (1) comprises further gear wheel (6) which transmits motion to odometer.
  • the tooth wheel mating between the Horizontal shaft (6) and Odometer is implemented as worm and helical gears.
  • Second gear wheel (worm / helical gear) is integrated with magnet.
  • the magnet is in contact with temperature compensation disc.
  • the Cup drag partially covers the magnet assembly.
  • the magnet assembly is enclosed partially in the magnet cover.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Gear Transmission (AREA)

Abstract

A speed indicating device where the rotation of a drive spindle (1 ) is transmitted directly to a measuring mechanism (4) via a pair of toothed gears (2,3). One toothed gear (2) is arranged on the spindle (1 ) and another toothed gear (3) is arranged on the measuring device (4). The toothed gears (2, 3) are configured as worm or helical gears.

Description

A DEVICE FOR TRANSMITTING ROTARY MOTION AND
METHOD THEREOF
FIELD OF INVENTION
This invention relates to a device and method for transmitting rotary motion from a driver shaft onto a second shaft for measuring angular speed of said rotary motion, said device comprises: a driver shaft with toothed gear meshed with that of second shaft wherein axis of the driver shaft is at an angle with that of the second shaft, and a measuring device fixed to the second shaft. The method comprises meshing the driver shaft toothed gear with that of the second shaft wherein the driver shaft axis is at an angle with that of the second shaft, and fixing the second shaft with a measuring device.
BACKGROUND OF THE INVENTION
In the existing trends it is seen that the driving shaft axis is inline with the axle (7). But this is not desired since driving shaft housing fouling with Head lamp in vehicle. Hence it is desired that the driving shaft axis is offset towards left (From Inst cluster viewing angle) with respect to Axle (7) inorder to prevent driving shaft housing fouling with Head lamp in vehicle.
In addition it is desire that the driving shaft is in an angle with respect to second shaft (2) inorder to maintain the cable in-line / straight & prevent sharp bend at mounting condition. The driving shaft angle will compensate the Instrument cluster mounting angle in vehicle & always maintain the drive shaft perpendicular to ground level. Hence cable sharp bend is eliminated at assembly condition in vehicle. This inturn prevents ovality & reduces friction of inner cable / flexible shaft during rotation. Hence enhancing the speed measuring device quality.
PRIOR ART:
Title: GEARED MEASURING DEVICE, ESPECIALLY FOR A TACHOMETER OR A REVOLUTION COUNTER PCT publication number: WO9852048
This publication can be considered as the closest prior art relating to instant invention.
This invention also deals with the above mentioned problems and proposes a solution.
The invention WO9852048 is related to a geared measuring device, wherein the rotation of the drive shaft can be transmitted to an intermediate shaft via a first pair of toothed gears and from the intermediate shaft to a measuring device drive mechanism via a second pair toothed gears. To this end, a first toothed gear is arranged on the drive shaft and a second toothed gear is arranged on the measuring device. The parts of the toothed gear pairs are configured on the intermediate shaft as a cylindrical worm and at least one toothed gear has a semi-globoidal shape gear.
Instant invention also addresses all the problems as mentioned above. At the same time, it differs from the prior art WO9852048 in the way in which the desired objective is achieved. Instant invention provides for more efficient and cost effective means of solving the problem. Instant invention has come out with a method and a device, wherein there is no need for the intermediate shaft for transfer of energy to measure the speed of rotation. Accordingly, the invention provides for more accurate measurement of the speed of rotation. In addition, avoiding intermediate shaft in the invention will result in more efficient transfer of energy. Further, this avoids wastage of energy because of indirect way of transfer of the rotary energy from first shaft to second shaft via intermediate shaft as stated in prior art. This will further reduce wear and tear of the device arid will also reduce the cost of manufacturing of the device.
BRIEF DESCRIPTION OF DRAWINGS
Figure 1: shows the schematic diagram of the transmission of Instrument movement containing Spindle, First gear wheel, Second gear wheel & measuring device. Figure Ia: shows perspective view of figure 1
Figure 2: shows instant invention comprising speed indicator pointer along with odometer.
Figure 2a: shows front view of figure 2. Figure 2b: shows back view of figure 2. Figure 3a: back view of instant invention Figure 3b: side view of instant invention Figure 3c: front view of instant invention Figure 3d: perspective view of instant invention
OBJECTS OF THE INVENTION
The primary object of the invention is to develop a device for transmitting rotary motion from a driver shaft onto a second shaft for measuring angular speed of said rotary motion.
Another object of this invention is to develop a driver shaft with toothed gear meshed with that of second shaft wherein axis of the driver shaft is at an angle with that of the second shaft.
A further objective of the invention is to develop a measuring device fixed to the second shaft.
Another main objective of the invention is to develop a method for transmitting rotary motion from a driver shaft on to a second shaft for measuring the angular speed of said rotary motion.
Yet another objective of the invention is to provide for meshing the driver shaft toothed gear with that of the second shaft wherein the driver shaft axis is at an angle with that of the second shaft Still another objective of the invention is to provide for fixing the second shaft with a measuring device.
STATEMENT OF INVENTION
Accordingly the invention provides a device for transmitting rotary motion from a driver shaft onto a second shaft for measuring angular speed of said rotary motion, said device comprises: a driver shaft with toothed gear meshed with that of second shaft wherein axis of the driver shaft is at an angle with that of the second shaft, and a measuring device fixed to the second shaft. This also provides for a method for transmitting rotary motion from a driver shaft on to a second shaft for measuring the angular speed of said rotary motion, said method comprising steps of: meshing the driver shaft toothed gear with that of the second shaft wherein the driver shaft axis is at an angle with that of the second shaft, and fixing the second shaft with a measuring device. DETAILED DESCRIPTION OF INSTANT INVENTION
The primary embodiment of the invention is a device for transmitting rotary motion from a driver shaft onto a second shaft for measuring angular speed of said rotary motion, said device comprises: a driver shaft with toothed gear meshed with that of second shaft wherein axis of the driver shaft is at an angle with that of the second shaft, and a measuring device fixed to the second shaft.
In yet another embodiment of the present invention the rotary motion of the second shaft is same as that of the driver shaft.
In still another embodiment of the present invention the angle is 10° to 80°.
In still another embodiment of the present invention the toothed gear is worm or helical gear.
In still another embodiment of the present invention toothed gear of the second shaft is meshed with that of a horizontal shaft for counting the rotary motion.
In still another embodiment of the present invention eddy current principle is used for measuring the angular speed.
In still another embodiment of the present invention the device measures angular speed in automobile.
Another main embodiment of the present invention is a method for transmitting rotary motion from a driver shaft on to a second shaft for measuring the angular speed of said rotary motion, said method comprising steps of: meshing the driver shaft toothed gear with that of the second shaft wherein the driver shaft axis is at an angle with that of the second shaft, and fixing the second shaft with a measuring device. In yet another embodiment of the present invention the speed is measured using eddy current principle.
In still another embodiment of the present invention toothed gear of the second shaft is meshed with that of a horizontal shaft for counting the rotary motion. In still another embodiment of the present invention the method measures angular speed in automobile.
Instrument movement for a speedometer or a tachometer or a revolution counter employed with frame (5) made of sheet metal or die casted or Injection molded plastic holding spindle (1), toothed gears (2, 3), measuring device (4). The Spindle holds the first toothed gear (2) and measuring device contains the second toothed gear (3) wherein the first toothed gear meshes directly with second toothed gear. The meshing angle between first toothed gear and second toothed gear varies from 10° to 60°. The first toothed gear & second toothed gear are designed as helical gear.
The measuring device carries Axle (7) wherein the speed / RPM indicating pointer (8) is fitted to the Axle. The frame holds the Horizontal shaft (6) in which second toothed gear is meshed with Horizontal shaft for motion transmission to Odometer / revolution counter (9). the horizontal shaft has worm gear.
Power / motion from flexible shaft / cable is transmitted to first toothed gear through spindle. The power in-turn is transmitted to second toothed gear in which first toothed gear is directly meshed with second toothed gear. The second toothed gear distributes the motion / power to both speed measuring device & Horizontal shaft for counting revolution (Odometer).
Task of the invention is it therefore, an Instrument movement with a transmission on admits, with which, the turn of the drive shaft / spindle is transferable over a first tooth wheel mating directly over a second toothed gear which distributes motion / power to speed measuring device & revolution counter through horizontal shaft, can simply be mounted and only little building area is required. This task according to invention by the fact it is drawn that two gear wheel are implemented as worm / helical gears.
The invention has the advantage that intermediate shaft is not required for motion transmission from first gear wheel to second gear wheel. Horizontal shaft / intermediate shaft is required only for motion transmission from second gear wheel to Odometer or revolution counter. Also horizontal shaft can be eliminated when the measuring device contains only speed / RPM indicator without revolution counter / Odometer.
The first gear wheel & second gear wheel rotates in same direction having transmission ratio 1:1 and gear meshing angle can be varied from 10° to 60° or even upto 80°. This results in axis offset between Spindle & Speed indicating pointer. The worm gear wheels are small and nevertheless quiet transmission, with which the potential danger of struck up / blocking is impossible. Further worm gear wheels can be produced by injection molding process. Thus Instrument movement indicating speed / RPM works, under eddy current principle is simple and long-lived construction unit.
The measuring device contains a magnet (10), Magnet cover (11), Temperature compensator (12) which are integrated with second gear wheel. This in-turn is surrounded by a cup drag (13) and the same tends to rotate the Speed indicating pointer. It also has a spring spiral (14).
Figure 1 shows the schematic diagram of the transmission of Instrument movement containing Spindle, First gear wheel, Second gear wheel & measuring device.
Figure 2 shows the schematic diagram of the transmission of Instrument movement containing Frame, Spindle, First gear wheel, Second gear wheel & measuring device. Measuring device includes Magnet, Compensator, Magnet cover, Axle, Spring spiral, Cup damping & Speed indicating pointer. The present invention relates geared speed / revolution indicating device, where in the rotation of Spindle, the drive shaft (1) is transmitted directly to an measuring mechanism (4) via a pair of toothed gears (2, 3). One toothed gear (1) is arranged on the spindle (1) and another toothed gear is arranged on the measuring device (4). The toothed gears (1, 2) are configured as worm or helical gear. The Instrument movement works under eddy current principle. The Horizontal shaft (1) comprises further gear wheel (6) which transmits motion to odometer. The tooth wheel mating between the Horizontal shaft (6) and Odometer is implemented as worm and helical gears. Second gear wheel (worm / helical gear) is integrated with magnet. The magnet is in contact with temperature compensation disc. The Cup drag partially covers the magnet assembly. The magnet assembly is enclosed partially in the magnet cover.

Claims

We claim:
1. A device for transmitting rotary motion from a driver shaft onto a second shaft for measuring angular speed of said rotary motion, said device comprises: a. a driver shaft with toothed gear meshed with that of second shaft wherein axis of the driver shaft is at an angle with that of the second shaft, and b. a measuring device fixed to the second shaft.
2. The device for transmitting rotary motion as claimed in claim 1, wherein the rotary motion of the second shaft is same as that of the driver shaft.
3. The device for transmitting rotary motion as claimed in claim 1, wherein the angle is 10° to 80°.
4. The device for transmitting rotary motion as claimed in claim 1, wherein the toothed gear is worm or helical gear.
5. The device for transmitting rotary motion as claimed in claim 1, wherein toothed gear of the second shaft is meshed with that of a horizontal shaft for . counting the rotary motion.
6. The device for transmitting rotary motion as claimed in claim 1, wherein eddy current principle is used for measuring the angular speed.
7. The device for transmitting rotary motion as claimed in claim 1, wherein the device measures angular speed in automobile.
8. A method for transmitting rotary motion from a driver shaft on to a second shaft for measuring the angular speed of said rotary motion, said method comprising steps of: a. meshing the driver shaft toothed gear with that of the second shaft wherein the driver shaft axis is at an angle with that of the second shaft, and b. fixing the second shaft with a measuring device.
9. The method for transmitting rotary motion as claimed in claim 8, wherein the speed is measured using eddy current principle.
10. The method for transmitting rotary motion as claimed in claim 8, wherein toothed gear of the second shaft is meshed with that of a horizontal shaft for counting the rotary motion.
11. The method for transmitting rotary motion as claimed in claim 8, wherein the method measures angular speed in automobile.
PCT/IN2007/000268 2007-05-30 2007-07-03 A device for transmitting rotary motion and method thereof WO2008146300A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BRPI0721693-9A2A BRPI0721693A2 (en) 2007-05-30 2007-07-03 DEVICE FOR ROTARY MOTION TRANSMISSION AND THE CORRESPONDENT METHOD

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN1127CH2007 2007-05-30
IN01127/CHE/2007 2007-05-30

Publications (1)

Publication Number Publication Date
WO2008146300A1 true WO2008146300A1 (en) 2008-12-04

Family

ID=40074616

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2007/000268 WO2008146300A1 (en) 2007-05-30 2007-07-03 A device for transmitting rotary motion and method thereof

Country Status (2)

Country Link
BR (1) BRPI0721693A2 (en)
WO (1) WO2008146300A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1300329A (en) * 1917-12-22 1919-04-15 Stewart Warner Speedometer Adjustable drive for speedometers.
US1441473A (en) * 1922-10-12 1923-01-09 Standard Thermometer Company Driving joint for speedometers
DE19633598A1 (en) * 1996-08-21 1998-03-12 Mannesmann Vdo Ag Tachometer for motor vehicle with variable mounting facility

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1300329A (en) * 1917-12-22 1919-04-15 Stewart Warner Speedometer Adjustable drive for speedometers.
US1441473A (en) * 1922-10-12 1923-01-09 Standard Thermometer Company Driving joint for speedometers
DE19633598A1 (en) * 1996-08-21 1998-03-12 Mannesmann Vdo Ag Tachometer for motor vehicle with variable mounting facility

Also Published As

Publication number Publication date
BRPI0721693A2 (en) 2014-02-25

Similar Documents

Publication Publication Date Title
US20080024288A1 (en) Vehicle display device
US7540095B2 (en) Rotary position transducer
WO2008146300A1 (en) A device for transmitting rotary motion and method thereof
US3263503A (en) Indicating instrument for a motor
CN212363168U (en) Rotation angle detection structure and transmission device
CN106959118B (en) Odometer for measuring the distance travelled by a vehicle on a vehicle axle
US3859860A (en) Device for recording the speed and/or the covered distance of a vehicle
US4339950A (en) Counting mechanism attachment for a fuel tank
CN214039876U (en) Rotation angle measuring device and multi-angle traveling vehicle
KR200451582Y1 (en) Counter for range finder
US3679922A (en) Housing arrangement for an apparatus transforming rotary speed into electric signals
CN211624170U (en) Reverse gear assembly of motor tricycle
US3346810A (en) Speedometer unit including an electroosmotic pump actuated indicator
US967297A (en) Linear meter.
US2044825A (en) Speed indicator
US1049220A (en) Speedometer and mileage-indicator.
US2310296A (en) Register mechanism
JP2527317Y2 (en) Cross coil type indicating instrument
RU18678U1 (en) VEHICLE TRANSMISSION
FR2657962A3 (en) Electronic tachometer (speedometer)
US790844A (en) Spring-swivel journal-bearing.
CN202049171U (en) Vehicle speed sensor for automobiles
JP3117112B2 (en) Vehicle instrument
US1816581A (en) Speedometer temperature compensator
US1019007A (en) Distance and speed meter.

Legal Events

Date Code Title Description
DPE2 Request for preliminary examination filed before expiration of 19th month from priority date (pct application filed from 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07827508

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 12009502280

Country of ref document: PH

122 Ep: pct application non-entry in european phase

Ref document number: 07827508

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: PI0721693

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20091130