Disc Brake Reset Device Decentral Adapter
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Solution Overview
Problem
Existing disc brake resetting devices are limited to central feeding and retraction of the setting spindle, making it difficult to access and replace worn brake pads, especially when the central tool engagement point is not reachable.
Innovation Solution
A cost-effective resetting device with a decentral output and adapter that converts the system to allow decentral feeding and retraction of the setting spindle using a chain drive and cover assembly, enabling easy tool access and movement transmission to the setting spindle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a central resetting shaft with central tool engagement point is used, then the resetting device structure is simple, but the tool accessibility is poor when the central point cannot be reached
Solution Approach 1:
The resetting device is segmented into multiple components: a housing containing the central resetting shaft, and a separate adapter assembly with decentral output. This allows the tool engagement point to be repositioned externally without modifying the central shaft mechanism, improving accessibility while maintaining structural simplicity.
Solution Approach 2:
An adapter assembly acts as an intermediary between the central resetting shaft and the tool. The adapter includes a decentral output that can be accessed from outside the brake caliper, transmitting rotational movement from the central shaft to the setting spindle through this intermediate interface.
2Ease of operation
If decentral output with adapter and chain drive is added, then tool accessibility is improved, but device complexity increases
Solution Approach 1:
The adapter assembly is further segmented into a cover, chain drive mechanism, and output interface. This modular segmentation allows each component to perform a specific function while keeping the overall design manageable and maintainable despite the increased complexity.
Solution Approach 2:
The adapter assembly serves multiple functions: it provides decentral tool engagement, transmits rotational movement via chain drive, and interfaces with the central resetting shaft. This multi-functionality justifies the added complexity by consolidating several requirements into a single integrated component.
3Productivity
If central feeding mechanism is used, then the resetting device structure is simple, but maintenance time increases due to difficult access
Solution Approach 1:
The decentral output on the adapter serves as an intermediary access point that allows tools to engage the resetting mechanism from outside the brake caliper. This eliminates the need to disassemble components to access the central shaft, significantly reducing maintenance time while improving accessibility.
Solution Approach 2:
The adapter assembly is pre-installed on the resetting device, with the decentral output already positioned for external access. This preliminary preparation ensures that during maintenance operations, the tool can immediately engage with the resetting mechanism without requiring additional disassembly or preparation steps.
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
Facilitates easy and efficient exchange of brake pads by allowing decentral feeding and retraction of the setting spindle, reducing maintenance time and improving accessibility without requiring complex tooling.
Implementation Method 1
The chain drive connects the decentral output to the resetting shaft and transmits an actuating movement of the tool arranged on the decentral output from the decentral output toward the resetting shaft
Data Source
AI summary
A disc brake (1) for motor vehicles includes at least two brake pads (25, 26), an application unit (4) with a setting spindle (5) arranged axially in the direction of the brake pads (25, 26), and a resetting device (7) for central adjustment of the setting spindle (5) after reaching a degree of wear of the brake pads (25, 26). The resetting device (7) has a housing (8), a sensor (9), a resetting shaft (10), and an adapter (11) with a decentral output (12). In one example, the adapter (11) has a cover (13) and a chain drive (14) for to transmitting an actuating movement from the decentral output (12) to the resetting shaft (10).