Adaptable Bow Limb Connection Device for Mechanical and ILF Systems

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Solution Overview

Problem

Existing sports bows require separate middle sections for mechanical and ILF connection systems, limiting flexibility and necessitating new purchases when switching between connection types.

Innovation Solution

A connecting device with adaptable receiving sections that can accommodate different connection types, including mechanical and ILF systems, via interchangeable elements and configurations such as bores with threads and U-shaped recesses, allowing for reversible and adjustable attachments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If separate middle sections are used for mechanical and ILF connection systems, then each connection type can be optimized for its specific geometry, but the user must purchase multiple middle sections to switch between connection types

Engineering Contradiction:
Improveconnection type compatibilityVSAvoidnumber of middle sections
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The middle section is designed with a universal receiving section that can accommodate both mechanical connection elements (screws, alignment pins) and ILF connection elements (pivot pockets, tiller screws) through interchangeable adapters. This allows a single middle section to perform multiple connection functions, eliminating the need for separate middle sections for different connection types.

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

Solution Approach 2:

Interchangeable adapter elements serve as intermediaries between the universal receiving section and different limb connection types. These adapters translate between the standardized receiving section geometry and the specific requirements of mechanical or ILF connections, enabling compatibility without requiring multiple specialized middle sections.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If a universal receiving section is used to accommodate both mechanical and ILF connections, then flexibility is improved, but the structural complexity of the receiving section increases

Engineering Contradiction:
Improveconnection type flexibilityVSAvoidreceiving section structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The receiving section is segmented into a universal base structure and interchangeable adapter components. The base structure contains standardized features (bores, mounting surfaces) that remain constant, while specific connection features are separated into removable adapters that can be swapped based on the required connection type, thereby managing complexity through modularity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The receiving section transitions from a static, dedicated design to a dynamic, reconfigurable system. Adapters can be inserted or removed to change the receiving section's functionality, allowing the same physical structure to adapt to different connection requirements without permanent modification or increased inherent complexity.

Inventive Principle:
Principle #15Dynamics

3Ease of operation

If interchangeable elements are used to adapt the receiving section geometry, then ease of switching between connection types is improved, but the assembly and disassembly process requires additional steps

Engineering Contradiction:
Improveswitching between connection typesVSAvoidassembly and disassembly time
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The adapter elements are pre-configured with specific connection features (threaded bores for mechanical connections, pivot pockets for ILF connections) that match standardized receiving section interfaces. This preliminary preparation allows users to simply swap pre-made adapters rather than assembling complex connection systems from scratch, reducing the time and complexity of switching between connection types.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP4141375A1Connection device for attaching a limb to a bow riser
Publication Date: 2023.03.01 BSW HANDELS GMBH
  • EP4141375A1 patent drawingFigure 1~2
  • EP4141375A1 patent drawingFigure 3~4
  • EP4141375A1 patent drawing

AI summary

Connecting device (10) configured to enable the attachment of bow limbs (30a, 30b) of different connection types to a bow riser (20), comprising at least one receiving section (13, 111, 121, 161) which is configured to receive various elements (11, 12, 14, 15, 16), wherein the elements (11, 12, 14, 15, 16) are configured to adapt the geometric shape of the connecting device (10) to the corresponding geometry of the connection type of the bow limb (30a, 30b) to be attached and can be inserted into and removed from the receiving sections (13, 111, 121, 161).