Adjustable Pickup Truck Bed Length for Maneuverability
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Solution Overview
Problem
Pickup trucks face a trade-off between easier maneuverability and storage capacity, with longer boxes being difficult to park and shorter boxes having limited carrying capacity, often resulting in damage to transported items due to protrusion from the vehicle.
Innovation Solution
A dynamically adjustable box system for pickup trucks, featuring a lower fixed bed and an upper shiftable bed with a tailgate, utilizing a drive system with cylinders and pistons to adjust the bed length, allowing for easier turning and parking while maintaining storage capacity for larger items.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a long box is used, then storage capacity is improved, but maneuverability deteriorates
Solution Approach 1:
The box length is made dynamically adjustable through a telescoping mechanism with movable beds that can extend and retract. This allows the box to change its length based on operational needs, providing long storage capacity when required and short maneuverability when needed, thus resolving the contradiction between fixed long box capacity and fixed short box agility.
2Ease of operation
If a short box is used, then maneuverability is improved, but storage capacity deteriorates
Solution Approach 1:
The telescoping box mechanism allows the storage volume to be extended when needed for carrying long items, while retracting to a compact size for easy maneuverability. This dynamic adjustment capability ensures both short-box agility and long-box storage capacity are available as needed.
3Volume of moving object
If a long box is used, then storage capacity is improved, but parking difficulty increases
Solution Approach 1:
The box can be retracted to a short configuration when parking in tight spaces, eliminating the parking difficulty associated with long boxes. When storage capacity is needed, the box extends to accommodate long items. This dynamic adjustment resolves the contradiction between storage capacity and parking ease.
4Ease of operation
If a short box is used, then parking ease is improved, but item protection deteriorates
Solution Approach 1:
When items need protection from damage, the box extends to provide adequate storage length, preventing items from hanging outward. When parking ease is the priority, the box retracts to a short configuration. This dynamic adjustment ensures item protection is available when needed while maintaining parking ease.
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
Enables the truck to adapt its bed length for improved maneuverability and storage capacity, reducing the risk of item damage by allowing the bed to be adjusted based on the user's needs, enhancing both parking ease and carrying capacity.
Implementation Method 1
the first drive system includes a cylinder fixedly connected to the chassis and a piston connected relative to the upper bed, the piston being moveable relative to the cylinder
Implementation Method 2
a plurality of rollers arranged between the lower bed and the upper bed, the rollers promoting movement of the upper bed relative to the lower bed
Implementation Method 3
a tail gate pivotally connected to the upper bed
Data Source
AI summary
A vehicle includes a chassis, a passenger compartment supported by the chassis, and a box supported by the chassis spaced from the passenger compartment. The box including a lower bed fixedly mounted to the chassis, an upper bed, and a tail gate pivotally connected to the upper bed. Each of the upper bed, and the tail gate is shiftable relative to the lower bed.