CA2295288C - A method for verifying wheel rotation and a wheel rotation indicator - Google Patents
A method for verifying wheel rotation and a wheel rotation indicator Download PDFInfo
- Publication number
- CA2295288C CA2295288C CA 2295288 CA2295288A CA2295288C CA 2295288 C CA2295288 C CA 2295288C CA 2295288 CA2295288 CA 2295288 CA 2295288 A CA2295288 A CA 2295288A CA 2295288 C CA2295288 C CA 2295288C
- Authority
- CA
- Canada
- Prior art keywords
- wheel rotation
- wheel
- hub
- shaft
- flag
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P13/00—Indicating or recording presence, absence, or direction, of movement
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/013—Wheels
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
Abstract
A method and apparatus for verifying wheel rotation includes the step of securing to a hub of a wheel in cantilever fashion an elongate member. A rigid flag is secured at a remote end of the elongate member, such that wheel rotation can be visually confirmed through movement of the flag.
Description
TITLE OF THE INVENTION:
A Method For Verifying Wheel Rotation And A Wheel Rotation Indicator NAME ( S) OF INVENTOR ( S):
Dale Kromm Colleen Kromm FIELD OF THE INVENTION
The present invention relates to a method for verifying wheel rotation and a wheel rotation indicator.
BACKGROUND OF THE INVENTION
A wheel on a tractor trailer unit can become locked, so it no longer rotates. There are various ways in which this can occur. If moisture gets between a brake shoe and a brake drum and freezes, the brake shoe can become frozen to the brake drum. A faulty air valve can fail to release the brake shoe from engagement with the brake drum after the brakes have been applied. Whenever a locking of the wheel occurs, the locked wheel is dragged along the pavement and destroyed.
A visible inspection of all wheels to ensure that they are rotating is relatively easy with a two man crew. One man drives the tractor trailer unit forward, while the other man looks for wheel rotation. Such a visible inspection is more difficult for a sole driver. The sole driver must mark the tires with chalk, drive the tractor trailer unit forward, and then check to confirm the expected movement of the chalk marks.
STJNIlKARY OF THE INVENTION
What is required is a method for verifying wheel rotation which will enable a sole driver to quickly confirm wheel rotation.
According to one aspect of the present invention there is provided a method for verifying wheel rotation which includes the step of securing to a hub of a wheel in cantilever fashion an elongate member. A rigid flag is secured at a remote end of the elongate member, such that wheel rotation can be visually confirmed through movement of the flag.
According to another aspect of the present invention there is provided a wheel rotation indicator which includes a shaft having a first end and a second end. A mounting is positioned at the first end of the shaft adapted for attachment of the shaft substantially perpendicularly to a hub of a wheel. A
rigid flag is secured to the second end of the shaft, thereby providing a visual indication of wheel rotation.
With the method and apparatus, as described above, a driver can verify wheel rotation by slowly moving the vehicle forward while observing in his side mirror whether the flags attached to the wheels are in motion. If the flag is in motion, the wheel must be rotating. If the flag maintains a constant position, the wheel is being dragged.
Although beneficial results may be obtained through the use of the wheel rotation indicator, as described above, improved results may be obtained if measures are taken to make movement of the flag easier to detect. Even more beneficial results may, therefore, be obtained when the rigid flag has a first side of a first colour and a second side of a second colour.
BRIEF DESCRIPTION OF THE DRAWINGS
These and other features of the invention will become more apparent from the following description in which reference is made to the appended drawings, wherein:
FIGURE 1 is a perspective view of a wheel rotation indicator constructed in accordance with the teachings of the present invention.
A Method For Verifying Wheel Rotation And A Wheel Rotation Indicator NAME ( S) OF INVENTOR ( S):
Dale Kromm Colleen Kromm FIELD OF THE INVENTION
The present invention relates to a method for verifying wheel rotation and a wheel rotation indicator.
BACKGROUND OF THE INVENTION
A wheel on a tractor trailer unit can become locked, so it no longer rotates. There are various ways in which this can occur. If moisture gets between a brake shoe and a brake drum and freezes, the brake shoe can become frozen to the brake drum. A faulty air valve can fail to release the brake shoe from engagement with the brake drum after the brakes have been applied. Whenever a locking of the wheel occurs, the locked wheel is dragged along the pavement and destroyed.
A visible inspection of all wheels to ensure that they are rotating is relatively easy with a two man crew. One man drives the tractor trailer unit forward, while the other man looks for wheel rotation. Such a visible inspection is more difficult for a sole driver. The sole driver must mark the tires with chalk, drive the tractor trailer unit forward, and then check to confirm the expected movement of the chalk marks.
STJNIlKARY OF THE INVENTION
What is required is a method for verifying wheel rotation which will enable a sole driver to quickly confirm wheel rotation.
According to one aspect of the present invention there is provided a method for verifying wheel rotation which includes the step of securing to a hub of a wheel in cantilever fashion an elongate member. A rigid flag is secured at a remote end of the elongate member, such that wheel rotation can be visually confirmed through movement of the flag.
According to another aspect of the present invention there is provided a wheel rotation indicator which includes a shaft having a first end and a second end. A mounting is positioned at the first end of the shaft adapted for attachment of the shaft substantially perpendicularly to a hub of a wheel. A
rigid flag is secured to the second end of the shaft, thereby providing a visual indication of wheel rotation.
With the method and apparatus, as described above, a driver can verify wheel rotation by slowly moving the vehicle forward while observing in his side mirror whether the flags attached to the wheels are in motion. If the flag is in motion, the wheel must be rotating. If the flag maintains a constant position, the wheel is being dragged.
Although beneficial results may be obtained through the use of the wheel rotation indicator, as described above, improved results may be obtained if measures are taken to make movement of the flag easier to detect. Even more beneficial results may, therefore, be obtained when the rigid flag has a first side of a first colour and a second side of a second colour.
BRIEF DESCRIPTION OF THE DRAWINGS
These and other features of the invention will become more apparent from the following description in which reference is made to the appended drawings, wherein:
FIGURE 1 is a perspective view of a wheel rotation indicator constructed in accordance with the teachings of the present invention.
FIGURE 2 is a perspective view of the wheel rotation indicator as illustrated in FIGURE 1 secured to a hub of a wheel.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
The preferred embodiment, a wheel rotation indicator generally identified by reference numeral 10, will now be described with reference to FIGURES 1 and 2.
Referring to FIGURE 1, wheel rotation indicator 10 includes an elongate member that serves as a shaft 12, a mounting 14, and a rigid flag 16. Shaft 12 has a first end 18 and a second end 20. Referring to FIGURE 2, mounting 14 is adapted for attachment of shaft 12 in a cantilever position substantially perpendicularly to a hub 20 of a wheel 22 when said mounting 14 is secured to said hub 20. Referring to FIGURE 1, mounting 14 has a pair of side members 24 and a cross member 26 extending between remote ends 28 of pair of side members 24. A securing member 30 having a bolt receiving passage 32 throughout extends radially from a securing end 34 of each side member. Shaft 12 is mounted at first end 18 to a midpoint of cross member 26 of mounting 14.
Rigid flag 16 extends from second end 20 collinear with shaft 12. Rigid flag has a first side 38, a second side 40, and a peripheral edge 42. Rigid flag 16 is illustrated as being a rectangular body having one dimension substantially smaller than the other dimensions. It will be recognized that rigid flag 16 can have any one of a variety of shapes having opposed sides and a peripheral edge. Referring to FIGURE 2, when rotation indicator 10 is mounted to rim 20, shaft 12 and rigid flag 16 are each substantially co-axial with an axle 36 on which wheel 22 is mounted. When wheel 22 rotates, rigid flag 16 also rotates thereby providing a visual indication of wheel rotation.
Although beneficial results may be obtained through the use of the wheel rotation indicator 10, as described above, improved results may be obtained if measures are taken to make movement of flag 16 easier to detect. Even more beneficial results may, therefore, be obtained when first side 38 of rigid flag 16 is of a first colour and second side 40 is of a second colour.
According to another aspect of the present invention there is provided a method for verifying wheel rotation which includes the step of securing to hub 20 of wheel 22 an elongate member that is shaft 12 mounted in cantilever fashion to hub 20. When wheel 22 rotates, rigid flag 16 secured at remote end of shaft 12 coaxially with axle 36 on which wheel 22 is mounted also rotates, thereby providing visual confirmation 15 that wheel 22 is rotating through movement of flag 16.
It will be apparent to one skilled in the art that modifications may be made to the illustrated embodiment without departing from the spirit and scope of the invention as 20 hereinafter defined in the Claims.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
The preferred embodiment, a wheel rotation indicator generally identified by reference numeral 10, will now be described with reference to FIGURES 1 and 2.
Referring to FIGURE 1, wheel rotation indicator 10 includes an elongate member that serves as a shaft 12, a mounting 14, and a rigid flag 16. Shaft 12 has a first end 18 and a second end 20. Referring to FIGURE 2, mounting 14 is adapted for attachment of shaft 12 in a cantilever position substantially perpendicularly to a hub 20 of a wheel 22 when said mounting 14 is secured to said hub 20. Referring to FIGURE 1, mounting 14 has a pair of side members 24 and a cross member 26 extending between remote ends 28 of pair of side members 24. A securing member 30 having a bolt receiving passage 32 throughout extends radially from a securing end 34 of each side member. Shaft 12 is mounted at first end 18 to a midpoint of cross member 26 of mounting 14.
Rigid flag 16 extends from second end 20 collinear with shaft 12. Rigid flag has a first side 38, a second side 40, and a peripheral edge 42. Rigid flag 16 is illustrated as being a rectangular body having one dimension substantially smaller than the other dimensions. It will be recognized that rigid flag 16 can have any one of a variety of shapes having opposed sides and a peripheral edge. Referring to FIGURE 2, when rotation indicator 10 is mounted to rim 20, shaft 12 and rigid flag 16 are each substantially co-axial with an axle 36 on which wheel 22 is mounted. When wheel 22 rotates, rigid flag 16 also rotates thereby providing a visual indication of wheel rotation.
Although beneficial results may be obtained through the use of the wheel rotation indicator 10, as described above, improved results may be obtained if measures are taken to make movement of flag 16 easier to detect. Even more beneficial results may, therefore, be obtained when first side 38 of rigid flag 16 is of a first colour and second side 40 is of a second colour.
According to another aspect of the present invention there is provided a method for verifying wheel rotation which includes the step of securing to hub 20 of wheel 22 an elongate member that is shaft 12 mounted in cantilever fashion to hub 20. When wheel 22 rotates, rigid flag 16 secured at remote end of shaft 12 coaxially with axle 36 on which wheel 22 is mounted also rotates, thereby providing visual confirmation 15 that wheel 22 is rotating through movement of flag 16.
It will be apparent to one skilled in the art that modifications may be made to the illustrated embodiment without departing from the spirit and scope of the invention as 20 hereinafter defined in the Claims.
Claims (5)
1. A wheel rotation indicator, comprising:
a shaft having a first end and a second end;
a mounting at the first end of the shaft adapted for attachment of the shaft to a hub of a wheel spaced from and independent of an axle and substantially perpendicular to the hub of the wheel, such that the mounting rotates with the hub as the hub rotates about the axle;
a rigid flag secured to the second end of the shaft, thereby providing a visual indication of wheel rotation.
a shaft having a first end and a second end;
a mounting at the first end of the shaft adapted for attachment of the shaft to a hub of a wheel spaced from and independent of an axle and substantially perpendicular to the hub of the wheel, such that the mounting rotates with the hub as the hub rotates about the axle;
a rigid flag secured to the second end of the shaft, thereby providing a visual indication of wheel rotation.
2. The wheel rotation indicator as defined in Claim 1, wherein the rigid flag has a first side of a first colour and a second side of a second colour.
3. A wheel rotation indicator, comprising in combination:
a hub of a wheel;
a shaft having a first end and a second end;
a mounting at the first end of the shaft adapted for attachment of the shaft to the hub of the wheel spaced from and independent of an axle and substantially perpendicular to the hub of the wheel, such that the mounting rotates with the hub as the hub rotates about the axle; and a rigid flag secured to the second end of the shaft, thereby providing a visual indication of wheel rotation.
a hub of a wheel;
a shaft having a first end and a second end;
a mounting at the first end of the shaft adapted for attachment of the shaft to the hub of the wheel spaced from and independent of an axle and substantially perpendicular to the hub of the wheel, such that the mounting rotates with the hub as the hub rotates about the axle; and a rigid flag secured to the second end of the shaft, thereby providing a visual indication of wheel rotation.
4. The wheel rotation indicator as defined in Claim 3, wherein the rigid flag has a first side of a first colour and a second side of a second colour.
5. A method for verifying wheel rotation, comprising the step of:
securing to a hub of a wheel in cantilever fashion an elongate member using a mounting such that the elongate member is spaced from and independent of an axle and perpendicular to the hub of the wheel, such that the mounting rotates with the hub as the hub rotates about the axle, and;
positioning a rigid flag at a remote end of the elongate member, such that wheel rotation can be confirmed by movement of the flag.
securing to a hub of a wheel in cantilever fashion an elongate member using a mounting such that the elongate member is spaced from and independent of an axle and perpendicular to the hub of the wheel, such that the mounting rotates with the hub as the hub rotates about the axle, and;
positioning a rigid flag at a remote end of the elongate member, such that wheel rotation can be confirmed by movement of the flag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2295288 CA2295288C (en) | 2000-01-12 | 2000-01-12 | A method for verifying wheel rotation and a wheel rotation indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2295288 CA2295288C (en) | 2000-01-12 | 2000-01-12 | A method for verifying wheel rotation and a wheel rotation indicator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2295288A1 CA2295288A1 (en) | 2001-07-12 |
| CA2295288C true CA2295288C (en) | 2007-05-22 |
Family
ID=4165046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2295288 Expired - Fee Related CA2295288C (en) | 2000-01-12 | 2000-01-12 | A method for verifying wheel rotation and a wheel rotation indicator |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2295288C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AUPR529901A0 (en) * | 2001-05-28 | 2001-06-21 | Lynx Engineering Consultants Pty Ltd | Automated wheel skid detector |
-
2000
- 2000-01-12 CA CA 2295288 patent/CA2295288C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2295288A1 (en) | 2001-07-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20190114 |