Carriage Roller Receptacle Locking Mechanism
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Solution Overview
Problem
Current securing devices for roll containers on transport vehicles fail to effectively prevent containers from unintentionally moving out of roller receptacles during transport, especially under deceleration forces and when unloading, leading to potential hazards and damage.
Innovation Solution
A safety device with a blocking element and displacement mechanism is integrated into the carriage, allowing the blocking element to pivot between a locked and release position, utilizing gravity and spring forces to secure the container rollers within the roller mounts, ensuring they remain in place during transport and unloading.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the ramp is designed to allow easy rolling of container rollers into and out of the recess, then the ease of operation is improved, but the reliability of securing the container roller during transport deteriorates
Solution Approach 1:
The blocking element is designed to be movable between a blocking position (during loading/unloading) and a non-blocking position (during transport). This dynamic adjustment allows the system to adapt to different operational phases: the ramp remains accessible during loading/unloading, and the blocking element engages during transport to prevent accidental discharge, thus resolving the contradiction between ease of operation and reliability.
Solution Approach 2:
The blocking element is positioned in advance to block the ramp before the container roller can accidentally discharge during transport. This preliminary blocking action prevents the harmful effect of accidental discharge while maintaining the ramp's functionality during intended loading/unloading operations, thereby improving reliability without compromising ease of operation.
2Device complexity
If no blocking element is provided on the ramp, then the device complexity is reduced, but the reliability of preventing accidental container discharge deteriorates
Solution Approach 1:
The blocking element is designed to be automatically actuated by the movement of the carriage itself. During transport, the carriage's motion automatically positions the blocking element to block the ramp, preventing accidental discharge. This self-service mechanism adds minimal complexity while significantly improving reliability, as the system uses its own operational movements to trigger the safety function.
Solution Approach 2:
The blocking element acts as an intermediary between the carriage movement and the container roller security. It translates the carriage's operational phases (transport vs. loading/unloading) into the appropriate blocking state, providing a simple yet effective solution that improves reliability without requiring complex control systems.
3Reliability
If the blocking element is always in blocking position, then the reliability of securing container rollers is improved, but the ease of operation for loading and unloading deteriorates
Solution Approach 1:
The blocking element dynamically transitions between blocking and non-blocking positions based on the operational phase. During loading and unloading, it moves to a non-blocking position to allow easy roller placement. During transport, it automatically moves to a blocking position to secure the roller. This dynamic behavior resolves the contradiction by providing both high reliability during transport and high ease of operation during loading/unloading.
Solution Approach 2:
The blocking element operates periodically, alternating between blocking and non-blocking states in sync with the carriage's operational cycles. It blocks during transport phases and releases during loading/unloading phases, creating a rhythmic pattern that ensures both security and operational ease at the appropriate times.
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 safety device effectively prevents container rollers from unintentionally moving out of the receptacles, enhancing load security during transport and unloading, and maintaining the carriage's position during empty runs, thereby reducing the risk of accidents and damage.
Implementation Method 1
springs which act in a spring force on the blocking element and/or by means of a control member
Implementation Method 2
causing a movement of the blocking element from its released position into its blocked position or vice versa in conjunction with the force of gravity connected to the blocking element mass
Data Source
Figure 1
Figure 2a~2c
Figure 3a~3d
AI summary
The invention relates to a sled for a transport vehicle for transporting roll containers. The sled has recesses as roller receptacles for receiving the container rollers of a roll container to be transported. The recesses, and thus the roller receptacles, each have a ramp designed such that a container roller can move into or out of the recess along the ramp. According to the invention, a locking device with a locking element is arranged in the area of the ramp. This locking element is movable back and forth between a locked position, in which it blocks a roller from moving out of the recess along the ramp, and a released position, in which it allows a roller to move out of the recess along the ramp.The locking device includes a displacement device configured to move the locking element into its locking position, wherein the displacement device effects a movement of the locking element from its release position into its locking position or vice versa by means of gravity of a mass connected to the locking element, by means of spring force of a spring mechanically connected to the locking element and/or by means of a control element mechanically connected to the locking element, which is arranged such that, in application, it is actuated by a control element attached to the transport vehicle when the carriage moves relative to the transport vehicle.