EP0071843A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Apparatus for checking the geometry of wheels
Assignee: Individual
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Filing: 1982-07-23
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Granted: —
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Expires: 2002-07-23
Abstract
Abstract The apparatus comprises digital scales (11, 13) for reading the wheel angles having a plurality of columns including a sequence of black and white spaces arranged in conformity with a given binary code. The scales (11, 13) are projected onto detection flags (16, 17) having a slit (23) whereat optical-electronic sensors (24) are arranged effective to detect the particular succession of black and white spaces in the column projected at the slit (23), and supply it to an electronic processing unit (30). Thus an apparatus is provided which eliminates the need of periodically checking the calibration of its components, thereby reducing the time and costs involved in the checking operations, and providing precise and reliable results.
Inventors
- 👤 Giuseppe Donato
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 06:11
CPC Classifications
G; G01; G01B; G01B11/00; G01B11/26; G01B11/275; G01B2210/00; G01B2210/10; G01B2210/28; G01B2210/283; G01B2210/30
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
39 words
An apparatus for checking the geometry of Wheels, comprising a pair-of projector lamps, reading scales, mirrors for reading the wheel toe-in, and flags or panels for measurement detecting, characterized in that said reading scales (11, 13) are digital scales.
Claim 2
Independent Claim
39 words
An apparatus for checking the geometry of Wheels, comprising a pair-of projector lamps, reading scales, mirrors for reading the wheel toe-in, and flags or panels for measurement detecting, characterized in that said reading scales (11, 13) are digital scales.
Claim 3
Dependent Claim
80 words
An apparatus according to Claim 1, characterized in that said digital scales (11, 13) include a plurality of columns, each comprising a sequence of black and white spaces arranged in conformity with a given binary code, and that said detection flags (16, 17) have a slit (23) whereat there are arranged a plurality of optical-electronic sensors (24) adapted to detect a particular sequence of black and white spaces in the column of said scales which is projected at said slit.
Claim 4
Dependent Claim
40 words
An apparatus according to Claim 1, characterized in that said optical-electronic sensors (24) are coupled to a data processing unit (30) which receives information from said sensors, processes it, and supplies it as an output to a display unit (49).
Claim 5
Independent Claim
45 words
An apparatus according to one or more of the preeeding claims, characterized in that it comprises two reading scales (11, 13), one (13) . of said scales being adapted for measurement of camber and incidence, the other (11) of said scalesbeing adapted for toe-in measurements.
Claim 6
Dependent Claim
48 words
An apparatus according to Claim 1, characterized in that said mirrors (8) for wheel toe-in reading are undetachably connected to a pendulum (21) such as to keep in a vertical position regardless of the inclination of said projector lamps (4) and provide automatic alignment of the toe-in scale.
Claim 7
Dependent Claim
36 words
An apparatus according to Claim 1, characterized in that said camber and incidence measuring scales (13) are connected undetachably to a pendulum (25) such as to keep in a vertical position regardless of the wheel trim.
Claim 8
Independent Claim
37 words
An apparatus according to the preceding claims, characterized in that said reading scales (11, 13) further comprise a graduated section with analog scales adapted to enable measurement taking in case of failure of the electronic assembly. ,
Claim 9
Independent Claim
38 words
An apparatus according to one or more of the preceding claims, characterized in that said data processing unit (30) comprises adder means effective to algebrically add together the electrical signals representing the values of the wheel half toe-in.
Claim 10
Independent Claim
33 words
An apparatus according to one or more of the preceding claims, characterized in that said processing unit (30) may be connected to a read-out unit using magnetic supports for storing car specification data.
Claim 11
Independent Claim
14 words
An apparatus for checking the geometry of wheels, substantially as herein described and illustrated.
Claim 12
Independent Claim
14 words
An apparatus for checking the geometry of wheels, substantially as herein described and illustrated.
References Cited (Backward Citations)
No citation records indexed.
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