Bicycle Kickstand Anti-Vibration Structure for Quiet Retraction

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Solution Overview

Problem

Existing bicycle kickstands generate annoying vibrational noise due to the supporting rod repeatedly hitting the lower edge of the fixing bracket, especially on uneven ground.

Innovation Solution

Incorporation of an anti-vibration body on the supporting rod that contacts the fixing bracket's lower edge in the raised position, reducing impact noise by absorbing vibrations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the supporting rod is made rigid to maintain stability, then the kickstand stability is improved, but the vibrational noise increases due to repeated impacts against the fixing bracket

Engineering Contradiction:

Improvekickstand stabilityVSAvoidvibrational noise

Core Design Contradiction:

Stability of the object's compositionVSObject-generated harmful factors

Solution Approach 1:

The patent applies beforehand cushioning by introducing a cushioning element between the supporting rod and the fixing bracket. This element is positioned in advance to absorb impact energies before they can generate harmful vibrations and noise, thereby maintaining stability while reducing the harmful vibrational effects.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The cushioning element acts as an intermediary between the supporting rod and the fixing bracket. It mediates the interaction by absorbing impact energies and preventing direct contact between the rigid components, thus reducing vibrational noise while preserving the structural stability of the kickstand.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Adaptability or versatility

If the supporting rod is allowed to oscillate to absorb shocks, then the shock absorption is improved, but the vibrational noise increases due to repeated impacts

Engineering Contradiction:

Improveshock absorptionVSAvoidvibrational noise

Core Design Contradiction:

Adaptability or versatilityVSObject-generated harmful factors

Solution Approach 1:

The cushioning element is positioned in advance to absorb impact energies before they can generate harmful vibrations. This allows the supporting rod to oscillate and absorb shocks while the cushioning element prevents the repeated impacts that would otherwise generate vibrational noise.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The cushioning element serves as an intermediary that enables the supporting rod to oscillate for shock absorption while simultaneously mediating the impact forces to prevent direct transmission to the fixing bracket, thus reducing vibrational noise.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Stability of the object's composition

If the coil spring force is increased to stabilize the rod position, then the positioning stability is improved, but the impact force against the back wall increases causing more noise

Engineering Contradiction:

Improvepositioning stabilityVSAvoidimpact noise

Core Design Contradiction:

Stability of the object's compositionVSObject-generated harmful factors

Solution Approach 1:

The cushioning element acts as an intermediary that absorbs the impact forces generated by the coil spring's stabilizing action. This allows the coil spring to exert sufficient force for positioning stability while the cushioning element mediates the impact forces to prevent noise generation.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent converts the harmful impact forces generated by the coil spring's stabilizing action into beneficial energy absorption by the cushioning element. The impact forces that would otherwise cause noise are transformed into absorbed energy that stabilizes the system, turning a harmful effect into a beneficial one.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

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

Significantly reduces vibrational noise by damping the impacts between the supporting rod and the fixing bracket, providing a quieter cycling experience.

Implementation Method 1

the supporting rod comprises an anti-vibration body fixed in such a position that when said supporting rod is in the raised resting position said anti-vibration body is in contact with the lower edge of said back wall

Methodology Applied

Scientific EffectVibration absorption: Damping

Data Source

PatentEP4375173B1Bicycle kickstand

Publication Date: 2026.05.06 URSUS BV

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AI summary

The present invention concerns a bicycle kickstand (10) comprising: - a fixing bracket (11) configured to be fixed to a bicycle frame; - a supporting rod (12) hinged to the fixing bracket (11) and configured to assume a raised resting position, in which the supporting rod (12) is rotated upwards and adjacent to the bicycle frame, and a lowered working position, in which said supporting rod (12) is rotated downwards so that it rests on the ground; - reversible locking means (13) configured to stabilize the position of the supporting rod (12) with respect to the fixing bracket (11), either in the raised resting position or in the lowered working position. The fixing bracket (11) comprises a back wall (14) whose lower edge (15) is positioned in such a way that it comes into contact with the supporting rod (12) when the supporting rod (12) is in said raised resting position. The supporting rod (12) comprises an anti-vibration body (20) fixed in such a position that when said supporting rod (12) is in said raised resting position said anti-vibration body (20) is in contact with said lower edge (15) of said back wall (14).