Line marking apparatus
First Claim
1. A line marking apparatus comprising:
- a chassis (2) provided with wheels (4) and with means (6) for propelling the apparatus;
a line marking head (12) adapted to dispense line marking material so as to mark a line upon a surface over which the apparatus is moved;
means (14) supporting the line marking head such that the line marking head is movable laterally relative to the chassis; and
means for controlling lateral movement of the line marking head and including a detector (32), movable with the line marking head, for detecting a beam of electromagnetic radiation indicative of the line to be marked and control means for moving the line marking head with the detector in response to detection of the beam by the detector, whereby lateral movement of the line marking head and of the detector relative to the chassis is controlled such that the line marking head and the detector substantially follow the line to be marked irrespective of whether the chassis deviates from the direction of such line.
7 Assignments
0 Petitions
Accused Products
Abstract
A line marking apparatus includes a chassis (2) provided with wheels (4) and with means (6) for propelling the apparatus. A line marking head (12) is adapted to dispense line marking material so as to mark a line upon a surface over which the apparatus is moved. A support (14) is provided for the line marking head such that the line marking head is movable laterally relative to the chassis. Lateral movement of the line marking head is controlled by a controller which includes a detector (32) for detecting a beam of electromagnetic radiation indicative of the line to be marked and which also includes control means for moving the line marking head in response to detection of the beam by the detector, whereby lateral movement of the line marking head relative to the chassis is controlled such that the line marking head substantially follows the line to be marked irrespective of whether the chassis deviates from the direction of such line.
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Citations
25 Claims
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1. A line marking apparatus comprising:
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a chassis (2) provided with wheels (4) and with means (6) for propelling the apparatus; a line marking head (12) adapted to dispense line marking material so as to mark a line upon a surface over which the apparatus is moved; means (14) supporting the line marking head such that the line marking head is movable laterally relative to the chassis; and means for controlling lateral movement of the line marking head and including a detector (32), movable with the line marking head, for detecting a beam of electromagnetic radiation indicative of the line to be marked and control means for moving the line marking head with the detector in response to detection of the beam by the detector, whereby lateral movement of the line marking head and of the detector relative to the chassis is controlled such that the line marking head and the detector substantially follow the line to be marked irrespective of whether the chassis deviates from the direction of such line. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24, 25)
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17. (canceled)
Specification