Pickup Roll Cover Clamp and Tensioning for Stable Waterproof Fit
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Solution Overview
Problem
Current external roll covers for pickup trucks are poorly matched to the rear cargo hopper, leading to complicated installation, high costs, and issues with the clamp system causing the leather to loosen over time, affecting both functionality and aesthetics.
Innovation Solution
An external roll cover design featuring a supporting frame with a front rail assembly, rear rail assembly, and side rail assembly, utilizing a locking assembly with a steel wire and pulling rope system, and a fixing adjustment assembly to maintain the leather's tension, along with a clamp assembly for stable connection to the cargo hopper.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional clamps are used to connect the roll cover to the cargo hopper, then the installation can be completed, but the clamp is easy to install obliquely which affects the locking tongue movement and the leather becomes loose after long time use
Solution Approach 1:
A guide groove is introduced as an intermediary structure between the clamp and the locking tongue. The guide groove constrains the locking tongue to move along a predetermined path, ensuring accurate alignment and preventing oblique installation. This mediator structure resolves the conflict between achieving reliable locking and maintaining ease of precise installation.
Solution Approach 2:
The guide groove is designed in advance to pre-position the locking tongue before the final locking action occurs. By providing this preliminary guidance structure, the system ensures that the locking tongue is properly aligned before engagement, preventing misalignment issues that would compromise reliability or require complex installation procedures.
2Adaptability or versatility
If the roll cover is designed to fit different car bodies, then versatility is improved, but the type of clamp needs to be matched according to different car bodies which makes installation and production difficult and costly
Solution Approach 1:
The clamp assembly is designed with universal adaptability features that allow it to accommodate different car body types without requiring different clamp types. The guide groove structure and adjustable components enable the same clamp design to function effectively across various vehicle models, eliminating the need for multiple specialized clamp types and simplifying both production and installation.
Solution Approach 2:
The clamp assembly incorporates dynamic adjustment capabilities that allow it to adapt to different geometries and positions on various car bodies. This dynamic flexibility enables a single clamp design to serve multiple applications, resolving the contradiction between versatility and complexity by making the clamp itself adaptable rather than requiring multiple fixed designs.
3Ease of manufacture
If the leather is connected to the cover frame by Velcro, then the structure is simple, but the leather becomes loose after long time use which affects aesthetics
Solution Approach 1:
The connection system merges multiple functions into a single integrated structure. The guide groove simultaneously serves as a structural support element and a tensioning mechanism for the leather. By combining the positioning function and the tension retention function in one structure, the system maintains simple manufacturing while preventing leather loosening over time.
Solution Approach 2:
The connection system uses a composite approach combining rigid structural elements (guide groove, clamp) with flexible components (leather, Velcro). This composite structure allows the rigid parts to maintain geometry and tension while the flexible parts provide comfort and adaptability, resolving the contradiction between simple construction and long-term tension retention.
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 solution provides a stable, easy-to-install roll cover that maintains the leather's tension and aesthetics, preventing loosening and ensuring effective waterproofing and convenient operation.
Implementation Method 1
the roller and the roller fixing block are rotationally connected, which means, when the steel wire is moving, it will drive the roller to rotate accordingly, so as to avoid friction generated between the steel wire and the roller
Implementation Method 2
Because of the spring in the rear rail joint, the locking tongue retracts into the rear rail joint and then protrudes out and snaps into the side rail
Implementation Method 3
the steel wire wound around the roller, the steel wire is sleeved with the pulling rope
Implementation Method 4
the convex portion engaged with the upper cover concave
Data Source
AI summary
The invention discloses an external roll cover for a pickup truck, including a layer of leather and a supporting frame, the layer of leather is connected to the cargo hopper through a supporting frame, the supporting frame includes a front rail assembly, a rear rail assembly and a side rail assembly, the front rail assembly is connected to the rear rail assembly through a side rail assembly, the front rail assembly includes a front rail, a front rail joint and a front rail rubber strip, the front rail is connected with the side rail assembly through a front rail joint, the front rail is connected with a front rail rubber strip, the front rail joints are connected at both ends of the front rail, the front rail rubber strip is stick on the bottom of the front rail. The front rail strip is very long, which can play a good waterproof effect.