Tonneau Cover Bed Rail Attachment Mechanism

Solution Overview

Problem

Existing tonneau cover bed rail systems are often difficult to attach to vehicle bed walls, requiring drilling and can become loose during driving, compromising the structural integrity.

Innovation Solution

A bed rail system featuring an attachment mechanism with an attachment block and attachment finger that securely engages the bed wall without drilling, and a locking mechanism to prevent loosening, ensuring a quick and secure attachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional attachment clips, latches, and clamps are used to attach bed rails to bed walls, then the bed rails can be attached to the vehicle, but the attachment becomes loose or dislodged due to bumping and vibrating during driving conditions

Engineering Contradiction:

Improveattachment securityVSAvoidattachment stability

Core Design Contradiction:

ReliabilityVSStability of the object's composition

Solution Approach 1:

The attachment mechanism is divided into separate functional components: an attachment block that interfaces with the bed wall, an attachment finger that engages the block, and a locking plate that secures the connection. This segmentation allows each component to perform its specific function optimally, with the locking plate providing dedicated anti-loosening protection separate from the attachment elements.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The attachment block is designed with pre-formed engagement features and locking surfaces that prepare the connection in advance. The attachment finger is pre-configured to engage specific portions of the attachment block, and the locking plate is positioned to prevent loosening before driving conditions cause vibration and bumping.

Inventive Principle:

Principle #10Preliminary action

2Reliability

If holes are drilled in the bed walls to attach bed rails, then the attachment can be secure, but the process becomes complicated and time consuming

Engineering Contradiction:

Improveattachment securityVSAvoidinstallation time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The attachment block is designed to interface with existing bed wall features without requiring new holes to be drilled. The mechanism extracts or utilizes the existing bed wall surface and any pre-existing mounting features, eliminating the need for additional drilling operations while maintaining secure attachment.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The attachment block serves as an intermediary component between the bed rail system and the bed wall. It provides a mounting interface that can attach to the bed wall without drilling, using friction-fit, snap-fit, or clamp-style connections, thereby mediating the connection and avoiding direct drilling into the bed wall.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Productivity

If attachment clips, latches, and clamps are used to attach bed rails, then the bed rails can be attached quickly, but they become loose or dislodged due to bumping and vibrating

Engineering Contradiction:

Improveattachment speedVSAvoidattachment security

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The attachment mechanism is divided into separate functional components: an attachment block that interfaces with the bed wall, an attachment finger that engages the block, and a locking plate that secures the connection. This segmentation allows each component to perform its specific function optimally, with the locking plate providing dedicated anti-loosening protection separate from the attachment elements.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The attachment block is designed with pre-formed engagement features and locking surfaces that prepare the connection in advance. The attachment finger is pre-configured to engage specific portions of the attachment block, and the locking plate is positioned to prevent loosening before driving conditions cause vibration and bumping.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS11273694B2Tonneau cover with bed rail system

Publication Date: 2022.03.15 EXTANG CORP

AI summary

A tonneau cover system for a cargo area of a vehicle. The tonneau cover system includes a tonneau cover and a bed rail system. The bed rail system includes a tonneau rail and an attachment mechanism. The attachment mechanism includes an attachment block that is configured to attach to the bed wall. An attachment finger of the tonneau rail is configured to engage the attachment block to attach the tonneau rail to the bed wall.