Pickup Truck Bed Cover Rotating Shaft Waterproofing

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Solution Overview

Problem

The existing bed covers for pick-up trucks are prone to having tapes fall off and have complex installation processes, which affects their popularity and usability due to exposure to sun and rain.

Innovation Solution

A bed cover design featuring a frame structure with a rotating shaft system, including a middle rod, left and right joints, and a joint fixed plate, which creates a rotating space isolated from the interior, using a waterproof tape system integrated into the frame to prevent water ingress without additional waterproof bars.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a soft fold-three-time bed cover is used, then the bed cover can be flexible and easy to install, but the tape is easy to fall off and the installation becomes complex

Engineering Contradiction:
Improveease of installationVSAvoidtape durability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent applies the dynamics principle by designing a rotating shaft system that allows the bed cover to transition between different states (open/closed, folded/unfolded) smoothly. The rotating shafts with connecting arms enable dynamic movement while maintaining structural integrity, preventing tape detachment through controlled motion rather than rigid fixation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The bed cover is divided into multiple segments (first rectangular frame, second rectangular frame, third rectangular frame) connected by rotating shaft systems. This segmentation allows each part to move independently while maintaining overall stability, reducing the complexity of tape installation and improving reliability by distributing stress across multiple connection points.

Inventive Principle:
Principle #1Segmentation

2Object-affected harmful factors

If additional waterproof bars are added to prevent water ingress, then waterproof performance is improved, but the device complexity increases

Engineering Contradiction:
Improvewaterproof performanceVSAvoidstructure complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent uses waterproof tape integrated into the frame structure and skin covering to create a flexible waterproof barrier. This thin film approach provides effective water ingress prevention without requiring additional rigid waterproof bars, thereby maintaining structural simplicity while achieving the desired waterproof performance.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The waterproof function is merged into the existing frame structure and skin covering by integrating waterproof tape along the edges and joints. This combination eliminates the need for separate waterproof bars, reducing device complexity while maintaining effective protection against water ingress through the rotated and folded configurations.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If the rotating shaft system is designed with multiple joints and connecting arms, then the bed cover becomes more durable and reliable, but the installation process becomes more complex

Engineering Contradiction:
Improverotating shaft system durabilityVSAvoidinstallation complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The rotating shaft system is pre-assembled with connecting arms and joints in a configuration that facilitates easier installation. The middle joint with circular grooves and the pre-positioned connecting arms are designed to engage with the frames in a predetermined sequence, reducing installation complexity while maintaining the durability provided by the multiple joint connections.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The middle joint acts as an intermediary component that simplifies the connection between left and right joints. The circular grooves in the middle joint serve as guiding features that facilitate the assembly of the rotating shaft system, reducing installation complexity while ensuring reliable and durable connections through the interconnected joint structure.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS10611218B2Bed cover of pick-up truck
Publication Date: 2020.04.07 WENZHOU CHAOMING AUTO PARTS CO LTD
  • US10611218B2 patent drawing
  • US10611218B2 patent drawing
  • US10611218B2 patent drawing

AI summary

A bed cover of pick-up truck including a frame structure and the skin covering the frame structure is provided. The frame structure consist of several frames and at least one rotating shaft system to connect two adjacent frames, And the rotating shaft system contains: a middle rod, a left joint, a right joint, a middle joint and a joint fixed plate; the left joint, the right joint and the middle joint are respectively provided with the rotating shaft part. The rotating shaft parts of the left joint and the right joint together with the middle joint make a rotating shaft. The middle joint is fixed with the joint fixed plate. The left and the right joint are also fixed with the middle rod to fix the whole rotating shaft system. This invention has the advantages of original design, ingenious structures, simple and durable installation, solid waterproof tape etc.