Construction Vehicle Door Resilient Mounting and Quick Detach
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Construction vehicle windows are prone to breakage due to impact and vibrations, and existing solutions do not provide a reliable means for emergency egress.
Innovation Solution
A door assembly with a resiliently mounted window pane, using a combination of resilient members and fastener assemblies to absorb vibrations and impacts, and a lever mechanism for detaching the door from the vehicle, allowing for quick egress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the window pane is rigidly mounted to the frame member, then the window pane is securely fixed, but the window pane is prone to breakage due to vibrations and impacts
Solution Approach 1:
The patent applies beforehand cushioning by positioning resilient members between the window pane and frame member before any impact or vibration occurs. These resilient members are pre-installed to absorb and dampen mechanical shocks and vibrations during vehicle operation, preventing the window pane from breaking while maintaining its secure attachment to the frame.
2Stability of the object's composition
If the window pane is securely fixed to the frame member, then the window pane remains stable during operation, but the operator cannot quickly escape the vehicle in case of emergency
Solution Approach 1:
The patent applies dynamics by designing a lever mechanism that can dynamically change the state of the door assembly. The lever, when actuated, moves relative to the frame member to disengage hinge pins, transforming the door from a securely fixed state to a detachable state, enabling rapid emergency egress while maintaining stability during normal operation.
3Stability of the object's composition
If the door is securely attached to the vehicle, then the door assembly is stable during operation, but the door cannot be quickly detached for emergency exit
Solution Approach 1:
The patent applies preliminary action by pre-positioning the lever mechanism and hinge pins in a ready state during normal operation. The lever is designed to be easily accessible and require minimal movement to disengage the hinge pins, allowing the operator to quickly detach the door assembly in an emergency without requiring complex manipulation or significant time.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively isolates the window from vibrations and impacts, preventing breakage and enabling secure emergency exit by allowing the door to be detached from the vehicle.
Implementation Method 1
A first resilient member is positioned between the frame member and the window pane, to substantially vibrationally isolate the frame member and the window pane
Implementation Method 2
A first resilient member is positioned between the frame member and the window pane, to substantially vibrationally isolate the frame member and the window pane
Implementation Method 3
A lever is coupled to the pair of hinge pins for moving the pair of hinge pins relative to the pair of hinges upon movement of the lever, to selectively detach the door assembly from the vehicle
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A construction vehicle door assembly (200) includes a frame member (210) having an inside surface and an outside surface, a window pane (230) is positioned proximate one of the inside surface and outside surface, and a first resilient member (220) substantially vibrationally isolates the frame member and the window pane. A fastener (240) extends through the frame member, window pane and first resilient member to couple the window pane to the frame member. A second resilient member (260) substantially vibrationally isolates the window pane and the fastener. A pair of hinges (510,500) are coupled to the frame member, a pair of hinge pins (520,530) are selectively extended into the respective one of the pair of hinges, and a lever (560) is coupled to the pair of hinge pins for moving the pair of hinge pins relative to the pair on hinges upon movement of the lever, to detach the door assembly from the vehicle.