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 transparent 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.
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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
24 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 transparent 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. The window assembly of claim I further comprising a stationary transparent pane and wherein the transparent pane and opening are positioned in the stationary transparent pane.
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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; grid made from a see-through material and attached to the frame; a see-through portion attached to the frame and moveable between a closed position wherein the see-through portion covers the Gee through grid and an open position wherein the grid is least partially uncovered by the see-through portion. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A construction vehicle comprising:
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at least one lift arm; a cab having a side wall; and a window attached to the side wall, the window further comprising; a clear stationary pane; a track connected to the clear stationary pane; a clear movable pane engaged with the track such that the clear movable pane can be moved between a first position wherein the window is closed and a second position wherein at least a portion of a hole is exposed in the window and the window is open; and a clear lattice portion covering the hole such when the window is open, objects larger than openings in the clear lattice portion are prevented from passing through the hole. - View Dependent Claims (23, 24)
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Specification