Strike Box Bolt-Slowing Mechanism for Noise Reduction
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Solution Overview
Problem
Strike boxes for locksets often generate excess noise during operation due to the rapid movement of bolts, which can be objectionable in various settings.
Innovation Solution
A strike box with a bolt-slowing mechanism that engages the bolt as it extends, exerting a force to slow its retraction, thereby reducing the noise generated during extension.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the bolt moves rapidly during extension, then the locking operation is quick and efficient, but excessive noise is generated
Solution Approach 1:
A rubber cushion member is positioned between the bolt and the strike box housing to absorb impact energy and reduce noise. The cushion member is pre-installed in the strike box opening before the bolt extends, creating a buffered interface that dampens the impact when the bolt reaches its extended position, thereby reducing noise while maintaining locking speed
Solution Approach 2:
The rubber cushion member acts as an intermediary element between the bolt and the strike box housing. This mediator absorbs the shock and reduces the direct impact noise generated during bolt extension, allowing the bolt to move quickly while the cushion member handles the noise-reduction function
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
The bolt-slowing mechanism effectively reduces the noise produced by the lockset during bolt extension by controlling the speed of bolt movement, enhancing operational quietness.
Implementation Method 1
the biasing mechanism is engaged between the platform and the housing, and is operable to urge the platform in the bolt-retracting direction
Data Source
AI summary
An exemplary strike box is configured for use with a lockset including a bolt operable to move in an extending direction and a retracting direction. The strike box includes a housing having an opening sized and configured to receive the bolt, and further includes a bolt-slowing mechanism mounted in the housing. The bolt-slowing mechanism is configured to engage the bolt as the bolt moves in the extending direction, and to exert a force urging the bolt in the retracting direction. The force exerted by the bolt-slowing mechanism slows the extension speed of the bolt, such that the strike box reduces noise generated during such extension.