Camera Mount Clamp With Eccentric Ratcheting Jaws

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Solution Overview

Problem

Existing camera mount clamping mechanisms require knob screws or clasps that extend externally, making them difficult to compactly package, require two hands to operate, and necessitate significant force and time to tighten or loosen, with the tightening screw often being inconveniently located.

Innovation Solution

A clamping apparatus with two slidably coupled jaws and a rotatable jaw movement mechanism featuring an eccentric inner surface and a ratcheting mechanism, allowing for one-handed operation and quick clamping/unclamping without external knobs or clasps, using a self-clamping mechanism where the item to be clamped is rotated to tighten the jaws.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a knob screw is used to secure the base plate, then the clamping function is achieved, but the clamp cannot be compactly packaged and requires two hands to operate

Engineering Contradiction:
Improveone-handed operationVSAvoidexternal knob screw structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent removes the external knob screw from the clamp structure entirely. Instead, it uses an internal cam mechanism with an eccentric contour that is integrated into the clamp body, eliminating the need for a separate external fastening component that extends outward.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The cam mechanism is merged with the clamp body structure. The eccentric contour is formed directly within the clamp housing, combining the fastening function with the structural component rather than being a separate external element.

Inventive Principle:
Principle #5Merging (Combining)

2Productivity

If a knob screw is used to tighten the base plate, then secure clamping is achieved, but significant force and time are required to turn the screw

Engineering Contradiction:
Improveclamping speedVSAvoidforce required to tighten
Core Design Contradiction:
ProductivityVSForce

Solution Approach 1:

The patent employs an eccentric (elliptical or variable contour) shaped cam mechanism. The curved eccentric contour converts rotational motion into linear clamping motion with mechanical advantage, allowing rapid engagement with minimal force compared to a linear screw thread.

Inventive Principle:
Principle #14Spheroidality (Curvature)

Solution Approach 2:

The cam mechanism provides dynamic clamping where the clamping force is applied automatically as the cam rotates into position, rather than requiring continuous manual force application as with a screw. The ratcheting mechanism maintains the dynamic lock without requiring sustained force.

Inventive Principle:
Principle #15Dynamics

3Ease of operation

If a knob screw is used for clamping, then the base plate can be secured, but the tightening screw is located in an inconvenient place and is not easily accessible

Engineering Contradiction:
Improveaccessibility of clamping mechanismVSAvoidinternal integrated mechanism
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent removes the external knob screw that was located in an inconvenient position and replaces it with an internal cam mechanism that is accessed through a different interface, improving accessibility while maintaining the clamping function.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The cam mechanism acts as an intermediary between the user's rotational input and the clamping action. The eccentric contour translates simple rotational motion into the required clamping motion, providing an accessible control interface that is easier to reach and operate than the previous screw location.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Volume of moving object

If an external knob screw extends outward from the clamp, then the clamping function is provided, but the clamp cannot be compactly packaged or stowed

Engineering Contradiction:
Improvecompact packagingVSAvoidclamping function
Core Design Contradiction:
Volume of moving objectVSEase of operation

Solution Approach 1:

The patent extracts the external knob screw that extended outward and replaces it with an internal cam mechanism. This eliminates the protruding element that prevented compact packaging while preserving the essential clamping function through the integrated eccentric contour.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The cam mechanism is nested within the clamp body structure. The eccentric contour is housed inside the clamp housing, allowing the entire assembly to have a compact footprint suitable for storage while the internal mechanism provides the full clamping capability when activated.

Inventive Principle:
Principle #7Nested doll (Nesting)

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

Enables compact packaging, efficient one-handed operation, and rapid clamping/unclamping with minimal effort, eliminating the need for external knobs or clasps and improving accessibility by integrating the clamping function into the camera mount design.

Implementation Method 1

A rotatable jaw movement controlling mechanism having an eccentric (elliptical or variable contour) shaped inner surface is coupled to the two clamping jaws for controlling the movement of the two clamping jaws towards or away from each other

Methodology Applied
Scientific EffectEccentric mechanism: Eccentric

Implementation Method 2

A ratcheting mechanism is coupled to the jaw movement controlling mechanism for preventing slippage of the two clamping jaws when the two clamping jaws are moving towards each other

Methodology Applied
Scientific EffectRatcheting mechanism: Ratchet

Data Source

PatentUS11194232B2Clamp for camera mount
Publication Date: 2021.12.07 TIEFENBRUNN LARRY J
  • US11194232B2 patent drawing
  • US11194232B2 patent drawing
  • US11194232B2 patent drawing

AI summary

Clamping apparatus for a camera mount includes two clamping jaws slidably coupled to each other so they can move towards or away from each other along a common plane. A rotatable jaw movement controlling mechanism having an eccentric (elliptical or variable contour) shaped inner surface is coupled around a portion of the two clamping jaws for controlling the movement of the two clamping jaws towards or away from each other. A ratcheting mechanism is coupled to the jaw movement controlling mechanism for preventing slippage of the two clamping jaws when the two clamping jaws are moving towards each other. The ratcheting mechanism may include a release button for releasing the ratcheting function and enabling the jaws to move away from each other quickly and without much effort.