Rotating Sleeve Ring Clamp for Backlash-Free Camera Mounting

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Solution Overview

Problem

Existing holding devices for attaching camera devices to vehicles, particularly aircrafts, require at least two people to create or separate the bolted connection, making it time-consuming. Additionally, conventional bayonet mount systems fail to provide a secure connection, leading to potential damage during sharp rotations or flights.

Innovation Solution

A holding device featuring a carrier ring with adjusting pins and a sleeve ring with clamping jaws, allowing for a secure, backlash-free connection between the interchangeable ring and the carrier ring. The sleeve ring has two positions: one for easy insertion and removal, and another for a positive, frictional engagement that prevents unintentional separation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a bayonet mount is used to connect the carrier part and interchangeable part, then the connection can be created quickly and easily by a single person, but the connection is not secure enough and may open during sharp rotations or wild maneuvers

Engineering Contradiction:
Improveease of connectionVSAvoidconnection security
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The connection system is segmented into multiple independent securing elements: adjusting pins that engage with insertion regions, holding cams on the interchangeable ring, and clamping jaws on the sleeve ring. This segmentation allows each element to contribute to overall connection security while maintaining ease of operation through modular engagement.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The adjusting pins are pre-positioned on the carrier ring at locations that correspond to insertion regions. When the interchangeable ring is mounted, the holding cams automatically align with and engage these pre-positioned pins, eliminating the need for manual alignment or complex fastening procedures while ensuring secure connection from the outset.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If a bolted connection is used to connect the carrier part and interchangeable part, then a secure connection is achieved, but at least two people are required to create or separate the connection, making it time-consuming

Engineering Contradiction:
Improveconnection securityVSAvoidconnection speed
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The connection system is designed to be self-servicing during mounting and dismounting. The interchangeable ring with holding cams engages automatically with the adjusting pins when brought to the mounting position. The sleeve ring with clamping jaws provides self-locking capability that secures the connection without requiring a second person to hold components or operate fasteners.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The complex multi-person bolted fastening system is replaced with a cam-and-pin mechanical engagement system combined with friction-based clamping. The holding cams leverage mechanical advantage to secure the interchangeable ring to the adjusting pins, while the clamping jaws provide frictional holding force, eliminating the need for threaded fasteners and multi-person operation.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Productivity

If a bayonet mount is used, then the connection can be created quickly, but backlash-free connection is not achieved, allowing oscillation and natural frequencies to occur

Engineering Contradiction:
Improveconnection speedVSAvoidbacklash-free connection
Core Design Contradiction:
ProductivityVSStability of the object's composition

Solution Approach 1:

The connection parameters are changed from rigid geometric fitting (bayonet mount) to friction-based holding. The clamping jaws apply radial clamping force that creates friction between the interchangeable ring and carrier ring surfaces, eliminating backlash and preventing oscillation while maintaining quick connection capability. The friction parameter is adjusted through clamping force rather than geometric constraints.

Inventive Principle:
Principle #35Parameter changes

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 holding device enables a secure and easy-to-operate connection between the interchangeable ring and the carrier ring, preventing unintentional separation even during wild manoeuvres. This allows a single person to quickly and reliably establish the connection, enhancing safety and efficiency.

Implementation Method 1

The holding device enables a secure and easy-to-operate connection between the interchangeable ring and the carrier ring, preventing unintentional separation

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS20250153251A1A holding device, and arrangement comprising said holding device
Publication Date: 2025.05.15 NINJAWERK GMBH
  • US20250153251A1 patent drawing
  • US20250153251A1 patent drawing
  • US20250153251A1 patent drawing

AI summary

The invention related to a holding device (3), an arrangement and a method, the holding device (3) being designed to interlockingly receive and hold interchangeable ring (2) with holding cams (4) projecting radially outwards on the circumferential side, said holding device comprising a carrier ring (5) having a plurality of adjusting pins (7) which project in the axial direction and between which at least one insertion region (31) for receiving the interchangeable ring (2) is recessed, wherein a sleeve ring (6) positioned concentrically with respect to the carrier ring (5) is provided outside the carrier ring (5) and is rotatably and in particular interlockingly connected to the carrier ring (5), wherein the sleeve ring (6) has at least one radially inwardly protruding clamping jaw (8), wherein, in a first position of the sleeve ring (6) relative to the carrier ring (5), the clamping jaw (8) is positioned adjacent to the insertion ring (31) of the carrier ring (5) in the peripheral direction, and wherein in a second position of the sleeve ring (6) relative to the carrier ring (5), the clamping jaw (8) is positioned at least in part above the insertion region (31) of the carrier ring (5) in the peripheral direction.