Lift arm vehicle window
First Claim
Patent Images
1. A window assembly for a cab, the window assembly comprising:
- a transparent pane movable between a first position wherein an interior of the cab for a construction vehicle is not in fluid communication with an exterior of the cab and a second position wherein the interior of the cab is in fluid communication with the exterior of the cab;
an opening in the window assembly exposed when the at least one transparent pane is in the second position; and
a lattice made form a clear material covering the opening so as to prevent a person in the cab from gaining access to the exterior of the cab through the opening and to present an unobstructed view through the transparent material of the lattice to a person in a cab.
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Accused Products
Abstract
A window assembly that can be opened and closed includes a transparent grid to prevent an operator from extending an arm through the opened window and into the path of a lift arm without impairing the vision of the operator. The window assembly may include more than one openable panes and/or one or more transparent stationary panes. The window may also include a sensor to sense if the window is compromised and may cause the lift arm vehicle to take a safety action if a compromise is detected.
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Citations
28 Claims
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1. A window assembly for a cab, the window assembly comprising:
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a transparent pane movable between a first position wherein an interior of the cab for a construction vehicle is not in fluid communication with an exterior of the cab and a second position wherein the interior of the cab is in fluid communication with the exterior of the cab; an opening in the window assembly exposed when the at least one transparent pane is in the second position; and a lattice made form a clear material covering the opening so as to prevent a person in the cab from gaining access to the exterior of the cab through the opening and to present an unobstructed view through the transparent material of the lattice to a person in a cab. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 22, 23, 24, 25, 26, 27, 28)
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11. A window for a side wall of a cab of a lift arm vehicle, the window comprising:
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a frame for a construction vehicle; a grid made from a see-through material and attached to the frame; and a see-through portion attached to the frame and moveable between a closed position wherein the see-through portion covers the grid and an open position wherein the grid is at least partially uncovered by the see-through portion; wherein the see-through material can be generally seen through so as to provide a generally unimpaired view of an environment outside the cab from inside the cab. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification