Silenced Guide Rail Bevelled Abutting End Noise Reduction

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Solution Overview

Problem

Existing guide rails with a two-piece assembly of a guide rail body and a guide block generate abnormal noise due to a high-low level difference, causing collisions between the guide post and the assembled part when the guide post passes through, resulting in significant noise.

Innovation Solution

A silenced guide rail design featuring a guide rail body with a beam piece and a guide block connected via a docking strip, where the docking strip includes a bevelled abutting end that forms a slideway, reducing noise by shortening the length of the guide post's contact points and misaligning the bevels to prevent simultaneous collision.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a two-piece assembly of guide rail body and guide block is used, then the guide rail can be assembled from separate components, but a high-low level difference is created at the assembled part causing abnormal noise

Engineering Contradiction:
Improveassembly of guide rail componentsVSAvoidabnormal noise from guide post collision
Core Design Contradiction:
Ease of manufactureVSObject-generated harmful factors

Solution Approach 1:

The patent applies preliminary action by pre-forming a bevelled abutting end on the guide block before assembly. This bevelled surface is prepared in advance to ensure that when the guide post passes through the connection between guide rail body and guide block, it follows the inclined surface rather than creating a sudden high-low level difference, thereby preventing collision noise while maintaining the two-piece assembly structure

Inventive Principle:
Principle #10Preliminary action

2Ease of operation

If the guide post passes through the high-low level difference at the assembled part, then the guide post can move through the connection, but collision between the guide post and assembled part generates large volume noise

Engineering Contradiction:
Improvemovement of guide post through connectionVSAvoidcollision noise volume
Core Design Contradiction:
Ease of operationVSObject-generated harmful factors

Solution Approach 1:

The patent applies the curvature principle by introducing a bevelled (inclined) surface at the abutting end of the guide block. This inclined surface creates a smooth transition path for the guide post, replacing the abrupt high-low level difference with a gradual slope, allowing the guide post to pass through the connection without sudden collision, thereby reducing noise while maintaining movement functionality

Inventive Principle:
Principle #14Spheroidality (Curvature)

Data Source

PatentUS11584205B2Silenced guide rail
Publication Date: 2023.02.21 HSIN CHONG MACHINERY WORKS
  • US11584205B2 patent drawing
  • US11584205B2 patent drawing
  • US11584205B2 patent drawing

AI summary

A silenced guide rail includes a guide rail body, a guide block, and a slideway. The guide rail body includes a beam piece, and the beam piece includes an abutting end. The guide block is connected to one end of the guide rail body, and the guide block includes a docking strip. The docking strip includes a corresponding abutting end corresponding to the abutting end. The abutting end includes a short side and a bevel. A shape of the corresponding abutting end corresponds to a shape formed by the short side and the bevel. The slideway is formed on the beam piece and the docking strip. Therefore, the present disclosure reduces an abnormal noise generated when a guide post passes through a connection between the guide rail body and the guide block, and an effect of eliminating all or most of the abnormal noise may be achieved.