Brake Fluid Container Pivot Mounting for Valve Block Assembly

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Solution Overview

Problem

Existing brake fluid container systems are complex to assemble and disassemble on a vehicle assembly line, often causing damage to seals and compromising tightness between the container and the valve block.

Innovation Solution

A brake fluid container system featuring a transverse joint axle on the container's rear corner and a fastening tab on its underside, which engages with a transverse bracket and fastening point on the valve block, allowing for simple rotation and secure fastening without engaging the block's interior, using a pivot and screw mechanism to ensure precise positioning and even contact forces.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a screw connection with seals is used to connect the brake fluid container to the valve block, then the connection provides sealing capability, but the assembly and disassembly process becomes complicated and time-consuming on the vehicle assembly line

Engineering Contradiction:

Improvesealing capabilityVSAvoidassembly speed

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The connection system is divided into two independent parts: a pivot connection for positioning and a separate fastening connection for securing. This segmentation allows the container to be quickly positioned via pivot while maintaining sealing through the separate fastening mechanism, resolving the contradiction between assembly speed and sealing reliability

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The pivot connection enables preliminary positioning and alignment of the container with the valve block before final fastening. This preliminary action ensures proper seal engagement before the fastening connection is fully secured, improving both assembly efficiency and sealing reliability

Inventive Principle:

Principle #10Preliminary action

2Reliability

If a screw connection with seals is used to connect the brake fluid container to the valve block, then the connection provides tightness, but the complexity of the assembly process increases

Engineering Contradiction:

ImprovetightnessVSAvoidassembly process complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The assembly process is segmented into two distinct operations: pivot insertion for positioning and separate fastening for securing. This reduces the complexity of each individual step while maintaining the required tightness through the dedicated fastening connection

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Instead of using a traditional screw connection that requires threading and seal compression from the start, the invention inverts the sequence by first establishing a pivot connection for easy positioning, then applying the fastening connection to achieve tightness, simplifying the overall process

Inventive Principle:

Principle #13The other way round (Inversion)

3Strength

If the fastening arrangement engages in the interior of the valve block, then the connection may be secure, but the risk of damage to seals and components increases

Engineering Contradiction:

Improveconnection securityVSAvoidseal damage risk

Core Design Contradiction:

StrengthVSObject-affected harmful factors

Solution Approach 1:

The fastening connection is extracted from the interior engagement approach and repositioned to engage externally or at the boundary between the container and valve block. This eliminates the risk of seal damage from interior engagement while maintaining connection security through the external fastening mechanism

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The pivot connection serves as an intermediary element that establishes the positional relationship between the container and valve block before the fastening connection is applied. This intermediary positioning reduces the risk of misalignment and seal damage during the fastening process

Inventive Principle:

Principle #24Intermediary (Mediator)

4Manufacturing precision

If the container is fastened using a pivot and screw mechanism, then the positioning precision improves, but the manufacturing complexity increases

Engineering Contradiction:

Improvepositioning precisionVSAvoidmanufacturing simplicity

Core Design Contradiction:

Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The positioning and fastening functions are segmented into separate mechanical elements (pivot and screw mechanism). This segmentation allows each component to be manufactured independently with standard tolerances, achieving high positioning precision without requiring complex integrated manufacturing processes

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS11136014B2Brake fluid container system assigned to the block of the actuator of the braking system

Publication Date: 2021.10.05 ROBERT BOSCH GMBH

AI summary

A brake fluid container system for fastening on the upper side of the valve block of the braking system, the block including a rear side, a conducting side and a front side in the longitudinal installation direction of the block in the engine space of the vehicle. On its rear corner, the upper side of the container includes a transverse axle, and in the longitudinal distance equal to the distance of the front and rear sides of the block, the underside supports a fastening tab. On its rear wall, the block includes a transverse bracket for accommodating the axle of the container, and on the front side, a fastening point for the fastening tab of the container.