Vertically Sliding Truck Door Mechanism
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Solution Overview
Problem
Existing transport structures with pivoting doors for unloading goods face issues such as violent and uncontrolled door opening due to thrust from goods, and problematic manipulation due to height and weight, particularly with sides.
Innovation Solution
A transport structure with a vertically sliding door connected by beams and cylinders, allowing the door to move between high and low positions, completely clearing the opening for unloading, and featuring a single-block door design with rotational connections and a ring-hook mechanism to prevent pivoting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a pivoting door is used in existing transport structures, then the door can be opened manually to facilitate unloading, but the door opening becomes violent and uncontrolled due to thrust from goods
Solution Approach 1:
The door movement direction is inverted from horizontal pivoting to vertical sliding. The door slides vertically along guide rails between closed and fully open positions, completely clearing the opening. This vertical motion path eliminates the violent pivoting action and provides controlled, predictable door movement during unloading operations.
Solution Approach 2:
The door system incorporates dynamic elements including vertical sliding along guide rails, rotational connections at top and bottom, and anti-pivoting hooks that engage with rings. These dynamic components work together to control the door's movement trajectory and prevent unwanted pivoting, ensuring reliable and safe operation throughout the opening cycle.
2Adaptability or versatility
If the door is located at typical truck height, then it fits standard truck configurations, but the height is too great for user access and manipulation becomes problematic
Solution Approach 1:
The door operation is transitioned from horizontal movement at fixed height to vertical movement along the height dimension. The door slides vertically from its closed position at truck body height down to a fully open position where it completely clears the opening and its upper edge is near the floor level. This vertical dimensionality change enables user access at ground level while maintaining compatibility with standard truck configurations.
3Strength
If sides are made heavy for structural strength, then they can withstand transport loads, but manipulation by user becomes problematic due to weight
Solution Approach 1:
The manual manipulation of heavy sides is replaced by a vertical sliding door mechanism driven by a cylinder. The cylinder provides the mechanical force needed to move the door vertically along guide rails, eliminating the need for users to manually lift or manipulate heavy side structures. The rotational connections and guide rails ensure controlled movement while maintaining structural strength.
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
Facilitates safe and efficient unloading by allowing the door to descend to the floor level, reducing manual effort and preventing door pivoting, thus enhancing access and safety during unloading operations.
Implementation Method 1
the connecting means comprise at least two beams between which the door moves under the action of at least one cylinder
Implementation Method 2
following a path defined by at least one guide rail extending along one of the beams
Data Source
Figure 1~3
AI summary
To this end, the invention proposes a goods transport structure (1) comprising at least one frame (10) provided with walls (11) and at least one door (20) defining an enclosure (E) for receiving goods, said door being connected to the frame by linking means (13) allowing movement of the door between open and closed positions. The linking means are arranged so that the door slides vertically between a high position corresponding to the closed position and a low position corresponding to the open position.