Interchangeable Bit Holder With Deformable Dual-Bit Retention

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Solution Overview

Problem

Existing devices for holding interchangeable tool bits are inefficient in space use and often include numerous parts, leading to suboptimal performance and manufacturing inefficiencies.

Innovation Solution

A body with inner walls defining multiple bit holding spaces and a resiliently deformable bit holder that separates and deforms against tool bits to securely hold them, using a ring-like structure for efficient space utilization and ease of manufacturing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple separate holders are used to hold multiple tool bits, then each tool bit can be securely held, but the device complexity and number of parts increases

Engineering Contradiction:
Improvesecure holding of tool bitsVSAvoidnumber of parts
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple tool bit holding functions into a single resiliently deformable bit holder that can simultaneously hold multiple interchangeable tool bits. The bit holder acts as an integrated component with multiple holding positions, eliminating the need for separate holders for each tool bit while maintaining secure holding capability through its deformable structure that adapts to each bit

Inventive Principle:
Principle #5Merging (Combining)

2Ease of manufacture

If traditional rigid holders are used, then manufacturing is simple, but space utilization within the device is inefficient

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidspace utilization
Core Design Contradiction:
Ease of manufactureVSVolume of moving object

Solution Approach 1:

The patent employs a resiliently deformable bit holder that can dynamically change its shape and configuration. The holder can deform to accommodate different tool bit sizes and shapes, allowing efficient use of the available space within the device. This dynamic capability enables compact arrangement of multiple tool bits without requiring excessive clearance, while the material and basic structure remain simple to manufacture

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The resiliently deformable bit holder changes its physical parameters (shape, volume, configuration) based on the inserted tool bits. This parameter change allows the holder to optimize space utilization by adapting its form to fit the specific combination of tool bits present, achieving efficient space use without complex manufacturing

Inventive Principle:
Principle #35Parameter changes

3Volume of moving object

If a compact design with multiple bit holding spaces is implemented, then space efficiency improves, but the reliability of securing each individual tool bit may be compromised

Engineering Contradiction:
Improvespace efficiencyVSAvoidtool bit securing
Core Design Contradiction:
Volume of moving objectVSReliability

Solution Approach 1:

The resiliently deformable bit holder provides different local qualities at different positions and regions. Each portion of the holder can independently deform to provide optimal securing force for the specific tool bit at that location. This localized adaptation ensures reliable securing of each individual tool bit even when multiple bits are held in a compact arrangement, as each bit receives customized holding pressure from the deformable structure

Inventive Principle:
Principle #3Local quality

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 solution provides efficient space use, ease of use, and reduced manufacturing costs by securely holding multiple tool bits while allowing easy switching and compact design.

Implementation Method 1

a resiliently deformable bit holder coupled to the body and separating the first and second bit holding spaces... configured to deform against the first and second interchangeable tool bits respectively, to hold the first and second interchangeable tool bits

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP4408619B1Interchangeable tool bit holder
Publication Date: 2025.09.24 PICQUIC TOOL
  • EP4408619B1 patent drawingFigure 1
  • EP4408619B1 patent drawingFigure 2
  • EP4408619B1 patent drawingFigure 3

AI summary

An apparatus for holding interchangeable tool bits includes a body including inner walls defining first and second bit holding spaces configured to receive first and second interchangeable tool bits, a resiliently deformable bit holder coupled to the body and separating the first and second bit holding spaces, the first bit holding 5 space adjacent to and encircled by an inner surface region of the resiliently deformable bit holder and the second bit holding space adjacent to an outer surface region of the resiliently deformable bit holder, such that the inner surface region and the outer surface region of the resiliently deformable bit holder are configured to deform against the first and second interchangeable tool bits 10 respectively, to hold the first and second interchangeable tool bits when the first and second interchangeable tool bits are in the first and second bit holding spaces. Other apparatuses and systems are disclosed.