Lockable Camera Axes Using Single Friction Member

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Solution Overview

Problem

Existing dome-style security cameras face challenges in maintaining fixed orientations during installation and operation due to external forces like vibrations, as the traditional method of locking individual axes can be cumbersome and inefficient.

Innovation Solution

A camera assembly with a swing and yoke system, where a locking member is movable between positions to lock both the tilt and azimuth axes using a single elongate member, ensuring stability by generating sufficient friction to prevent axis rotation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional individual axis locking methods are used, then each axis can be locked separately, but the locking process becomes cumbersome and inefficient

Engineering Contradiction:
Improvelocking processVSAvoidlocking mechanism
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent combines multiple locking functions into a single integrated locking device that can lock both the azimuth axis and tilt axis simultaneously. The locking device includes a locking member with friction engagement surfaces that contact both axes, allowing one operator to secure both rotational movements with a single action rather than requiring separate locking mechanisms for each axis.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The locking device is designed with multi-functionality to handle both azimuth and tilt axis locking through a single mechanism. The friction engagement surfaces are configured to interact with both axes, making the locking device universal for securing different rotational movements without requiring axis-specific locking components.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If cameras are not enclosed within protective bubbles, then installation flexibility is improved, but cameras become more prone to external forces like vibrations

Engineering Contradiction:
Improveinstallation flexibilityVSAvoidexternal forces
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The locking device applies preliminary anti-action by creating friction engagement with both the azimuth and tilt axes before external forces can cause unwanted movement. The friction surfaces are positioned to contact the axes and prevent rotational movement in advance, counteracting the effects of vibrations and other external forces that may occur during installation or operation.

Inventive Principle:
Principle #9Preliminary anti-action

3Productivity

If locking members are positioned to engage both axes, then locking efficiency is improved, but the structural complexity of the swing and yoke system increases

Engineering Contradiction:
Improvelocking efficiencyVSAvoidswing and yoke system
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The locking device is segmented into distinct friction engagement surfaces, with one surface configured to contact the azimuth axis and another surface configured to contact the tilt axis. This segmentation allows the single locking device to independently engage both axes through separate contact points, improving locking efficiency while maintaining a manageable structural design.

Inventive Principle:
Principle #1Segmentation

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

This solution allows for secure locking of both tilt and azimuth axes with a single locking device, enhancing the camera's stability during installation and operation, effectively preventing unwanted movement due to external forces.

Implementation Method 1

generating sufficient friction to prevent axis rotation

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS11196902B2Camera with lockable axes of rotation
Publication Date: 2021.12.07 MOTOROLA SOLUTIONS INC
  • US11196902B2 patent drawing
  • US11196902B2 patent drawing
  • US11196902B2 patent drawing

AI summary

There is described an apparatus including a camera defining an azimuth axis. A swing supports the camera. The camera is rotatable relative to the swing about the azimuth axis. A yoke is rotatably coupled to the swing about a tilt axis. The swing is rotatable relative to the yoke about the tilt axis. A locking member attached to the swing is movable between a first position and a second position in which the locking member contacts the camera.