Tractor Front Loader Parking Stand with Contour Guide Groove
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Solution Overview
Problem
Existing parking stand devices for front loaders are complex, costly, and limited in versatility, requiring a detailed interaction between tool holders and parking stand devices, making them suitable only for specific configurations and increasing operational complexity.
Innovation Solution
A simplified parking stand device design featuring a profiled sheet metal guide groove with a changing contour and stop, eliminating the need for additional locking bolts, allowing the device to be used across various front loader configurations without a specific tool holder match, and incorporating a spring-loaded latch for secure locking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a detailed coordinated interaction between tool holder and parking stand device is implemented, then automatic unlocking and positioning is achieved, but device complexity and costs increase significantly
Solution Approach 1:
The parking stand device automatically unlocks and positions itself through the weight of the front loader swing arm acting on the locking strut. The guide means follows the contour-changing guide groove, which automatically guides the locking strut to the locked position without requiring external actuation or complex coordination mechanisms.
Solution Approach 2:
The invention removes the tool holder from the coordination system entirely. The parking stand device operates independently using only the front loader swing arm's weight and the contour-changing guide groove, eliminating the need for detailed interaction between the tool holder and parking stand device.
2Device complexity
If a contour-changing guide groove with stop is used, then the number of parts is reduced and locking is achieved through guide means interaction, but manufacturing precision requirements increase
Solution Approach 1:
The guide groove combines multiple functions into a single structural element: it guides the locking strut's movement, provides the locking position through the stop, and ensures proper positioning through its contour-changing profile. This merging eliminates the need for separate locking bolts and complex coordination mechanisms.
3Reliability
If additional locking bolts and complex coordination mechanisms are used, then reliable locking is achieved, but costs and device complexity increase
Solution Approach 1:
The locking mechanism uses the front loader swing arm's own weight to automatically lock the parking stand device in place. The guide means follows the contour-changing guide groove, which automatically guides the locking strut to engage with the stop, achieving reliable locking without additional locking bolts or complex mechanisms.
Data Source
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AI summary
The loader (10) has a parking changing device (28) comprising a swingable park stanchion (30) that is secured at a front loader rocker (12). The front loader rocker is pivoted from an operational position into a parking position. The park stanchion is pivoted from the parking position into a locking position by a guide unit. A guiding groove is formed in a stop part in such a manner that the guide unit in the parking position and a fix prop (32) affecting a supporting force of a front loader rocker are pushed against the stop part in the locking position.