Lifting Vehicle Overrun Brake with Automatic Brake Link Reconnection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing lifting vehicles require significant manual effort and pose safety risks due to the need for manual reconnection of the brake force transmission element after pivoting the lifting device, which can lead to non-functional brakes during road travel.
Innovation Solution
The braking force transmission element is automatically moved into the braking position by pivoting the lifting device, eliminating the need for manual intervention and ensuring reliable brake operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the brake force transmission element is manually disconnected and reconnected after pivoting the lifting device, then the brake system can be protected during pivoting, but significant user effort is required and safety risks increase due to potential forgetfulness
Solution Approach 1:
The brake force transmission element is pre-positioned and automatically connected to the brake system when the lifting device pivots into the operating position. This preliminary positioning eliminates the need for manual reconnection after pivoting, ensuring the brake is ready for use without requiring user intervention.
Solution Approach 2:
The braking device is designed to automatically manage its own connection state through the pivoting motion of the lifting device. The brake force transmission element self-connects to the brake system when the lifting device is in the operating position, and self-disconnects during pivoting, without requiring manual operation.
2Weight of moving object
If the coupling device is arranged on the support element rather than the chassis frame, then the chassis frame can be designed to be particularly lightweight, but the brake force transmission element arrangement becomes more complex
Solution Approach 1:
The support element serves multiple functions: it acts as both the lifting mechanism support and the mounting structure for the coupling device and brake system. This multi-functionality allows the chassis frame to be lightweight while the support element handles the additional structural requirements.
Solution Approach 2:
The brake system components, including the brake force transmission element, are integrated with the coupling device and support element structure. This merging of functions reduces the need for separate mounting structures and simplifies the overall arrangement despite the unconventional positioning.
Data Source
Figure 1
Figure 2
Figure 3a
AI summary
The invention relates to a lifting vehicle (2). It has a chassis (4), a lifting device (10) that can be pivoted upwards relative to the chassis (4), a coupling device (14) arranged at a distance from the lifting device (10) and from the chassis (4), and a brake device (20) designed as an overrun brake.The brake device (20) is configured in a braking function position for braking a rotational movement of at least one wheel (8) of the chassis (4) depending on the position of a coupling element (16) of the coupling device (14) and has at least one brake force transmission element (22) which is configured for transmitting a braking force and extends at least partially between the coupling device (14) and the chassis (4) at least in the braking function position of the brake device (20). According to the invention, the brake force transmission element (22) is mounted on the lifting device (10) in such a way that the brake device (20) is automatically transferred into the braking function position with a pivoting movement of the lifting device (10) from an operating position to a driving position.