Bicycle Bell Switching Between Automatic and Manual Striking

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Conventional automatic striking bicycle bells cannot be switched off during ride, leading to continuous noise and potential distractions.

Innovation Solution

A bicycle bell design that incorporates a base portion with a limiting column and a clapper assembly, allowing the bell to be switched between a free striking state and an off state by adjusting the relative positions of the clapper and limiting column, enabling manual ringing in the off state using a restorable striking portion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If automatic striking bell is used to warn during ride, then safety warning function is improved, but noise disturbance increases and cannot be stopped

Engineering Contradiction:

Improvesafety warning functionVSAvoidnoise disturbance

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The bell mechanism transitions from a static automatic striking design to a dynamic one where the clapper can be positioned in different states. The movable clapper assembly allows switching between free striking state (for safety warning) and constrained state (to stop noise), making the system adaptable to different riding conditions while resolving the noise disturbance issue.

Inventive Principle:

Principle #15Dynamics

2Extent of automation

If automatic striking mechanism is added to bell, then automatic warning function is improved, but device complexity increases

Engineering Contradiction:

Improveautomatic warning functionVSAvoidbell structure complexity

Core Design Contradiction:

Extent of automationVSDevice complexity

Solution Approach 1:

The bell is divided into functionally independent segments: the base portion with limiting column, the shell assembly, and the movable clapper assembly. This segmentation allows the automatic striking function to be achieved through simple relative movement between segments rather than a complex integrated mechanism, reducing overall device complexity while maintaining automation.

Inventive Principle:

Principle #1Segmentation

3Extent of automation

If clapper is allowed to move freely for automatic striking, then automatic warning function is improved, but ability to stop striking is lost

Engineering Contradiction:

Improveautomatic striking functionVSAvoidability to switch between striking and silent modes

Core Design Contradiction:

Extent of automationVSAdaptability or versatility

Solution Approach 1:

The system changes the positional parameter of the clapper assembly relative to the limiting column to control striking behavior. In the free striking state, the clapper moves freely within the shell assembly. In the off state, the clapper is positioned to contact or be constrained by the limiting column, preventing striking. This parameter change enables switching between automatic warning and silent modes.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS11772732B2Bicycle bell

Publication Date: 2023.10.03 JET RIDER CO LTD

AI summary

This invention discloses a bicycle bell that combines the functions of a single-stroke bell and an automatic striking bell. The bicycle bell of the invention includes a base portion and a bell portion, and the base portion has a limiting column protruding from the base portion, and the bell portion includes a shell assembly and a clapper assembly movably installed in the shell assembly, and the shell assembly is sheathed on the limiting column and can be fixed to a first position and a second position of the limiting column, and the clapper assembly is held by the limiting column to limit the movement of the clapper assembly, when the shell is situated in the second position.