Compound Bow Servicing String for Bow Press-Free Cable Changes

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Solution Overview

Problem

Servicing and maintenance of compound bows often require a bow press, which is a large machine, making it inconvenient for changing bowstring and cable segments.

Innovation Solution

A compound bow design incorporating a servicing string that allows for the change of bowstring and power cables without the need for a bow press, utilizing rotatable members and a servicing string to relieve tension on existing cables, enabling the installation of new ones.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of repair

If a bow press is used to service compound bows, then cable and bowstring replacement can be achieved, but the equipment becomes large and inconvenient

Engineering Contradiction:

Improvecable and bowstring replacement capabilityVSAvoidequipment portability and convenience

Core Design Contradiction:

Ease of repairVSEase of operation

Solution Approach 1:

The compound bow is designed with self-service capabilities through integrated servicing strings and rotatable members that allow users to relieve cable tension and perform maintenance without external bow press equipment. The bow's own structure provides the necessary mechanical advantage for cable replacement.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

Servicing strings act as intermediary elements between the user and the tensioned cable system. These strings temporarily carry the load and enable safe cable replacement by mediating the tension relief process without requiring large external machines.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Strength

If traditional cable tensioning methods are used, then structural integrity is maintained, but servicing requires complex external equipment

Engineering Contradiction:

Improvecable tension and structural integrityVSAvoidservicing equipment complexity

Core Design Contradiction:

StrengthVSDevice complexity

Solution Approach 1:

The cable tension management system is segmented into modular components including servicing strings, rotatable members, and cable routing elements. This segmentation allows independent manipulation of tension zones during servicing while maintaining overall structural integrity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system uses dynamic rotatable members that can change orientation during servicing operations. These members dynamically adjust cable routing and tension distribution, enabling maintenance while preserving the bow's structural strength characteristics.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS12422212B2Compound bow with cable change

Publication Date: 2025.09.23 MCP IP LLC

AI summary

In some embodiments, an archery bow comprises a riser, a first limb and a second limb. A first rotatable member is arranged to rotate about a first axis and a second rotatable member is arranged to rotate about a second axis. A bowstring is attached to the first rotatable member and arranged to bias the first rotatable member in a first rotational direction about the first axis. A power cable is attached to the first rotatable member. A servicing string is arranged for attachment to the first rotatable member and arranged to bias the first rotatable member in a second rotational direction about the first axis.