Archery Finger Tab With Adjustable Hinge Mount

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Solution Overview

Problem

Conventional archery finger tabs do not accommodate individual archers' unique hand shapes and habits, leading to unstable hooking actions, bowstring vibration, and inconsistent arrow trajectories due to their fixed, right-angle support plates that do not adapt to varying finger lengths, thicknesses, and bending degrees.

Innovation Solution

An archery finger tab with a plate-shaped body featuring a forward-rearward guide rail, a rotatable mount with a hinge, and a little finger support with a second hinge, allowing adjustable vertical position, height, and inclination through screw-based fastening and elastic members for customizable fit.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If support plates are manufactured at right angles (fixed structure), then manufacturing is simple and consistent, but archers must adapt their hands and hooking actions to the finger tabs instead of adapting the finger tabs to their hooking positions

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidadaptability to individual archer hand shapes
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The support plate is transformed from a fixed rigid structure to an adjustable dynamic structure. The support plate can be rotated about a first axis and the support angle can be adjusted and fixed at different angles, allowing the finger tab to adapt to different archer hand shapes and hooking positions while maintaining manufacturing simplicity through standardized adjustable components.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The support angle parameter of the support plate is made variable rather than fixed. By allowing rotation and adjustment of the support plate at different angles, the system can accommodate individual archer preferences for support angles while maintaining consistent manufacturing processes for the standardized adjustable components.

Inventive Principle:
Principle #35Parameter changes

2Manufacturing precision

If the finger tab structure is fixed and standardized, then manufacturing consistency is high, but it cannot accommodate different finger lengths, thicknesses, and bending degrees of individual archers

Engineering Contradiction:
Improvemanufacturing consistencyVSAvoidaccommodation of individual finger variations
Core Design Contradiction:
Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

The finger tab is divided into multiple independent adjustable segments: the support plate that can rotate about a first axis, the hinge part that can rotate about a second axis, and the fastening mechanism that allows fixing at different positions. This segmentation allows each component to be manufactured with high precision and consistency while the assembled system can accommodate individual finger variations through adjustment.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The previously fixed structure is replaced with dynamic adjustable components. The support plate can be rotated and fixed at different angles, the hinge part can rotate to adjust the position, and these adjustments allow the standardized components to adapt to different finger lengths, thicknesses, and bending degrees while maintaining manufacturing precision.

Inventive Principle:
Principle #15Dynamics

3Device complexity

If archers adapt their hands to fixed finger tabs, then the finger tab structure remains simple and consistent, but hooking action stability decreases leading to bowstring vibration and inconsistent arrow trajectories

Engineering Contradiction:
Improvefinger tab structure simplicityVSAvoidhooking action stability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The fixed structure is replaced with adjustable dynamic components including a rotatable support plate and a rotatable hinge part. This allows archers to adjust the finger tab to match their natural hand shape and hooking action, improving hooking stability and reducing bowstring vibration while maintaining relatively simple device structure through standardized adjustable mechanisms.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The support angle and position parameters are made adjustable rather than fixed. By allowing rotation of the support plate about a first axis and the hinge part about a second axis, archers can optimize the hooking action stability for their individual hand shapes, eliminating the need for complex structures while improving reliability.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP3812688B1Archery finger tab
Publication Date: 2022.03.09 FIVICS CO LTD
  • EP3812688B1 patent drawingFigure 1
  • EP3812688B1 patent drawingFigure 2~4

AI summary

The invention relates to an archery finger tab that can reduce awkwardness while an archer draws and releases the bowstring and support an archer's hand that draws a bowstring. A characteristic configuration of the invention includes an archery finger tap comprising: a body part (12) that has a plate shape one surface of which face a palm and has a first guide rail (16), having a length in a forward-rearward direction, formed at a rear part thereof; a mount (18) that has a plate shape, is guided or fixed/unfixed by a first fastening part (20) with respect to the first guide rail, is rotatable about the first fastening part, and is provided with a first hinge part (24) disposed in the forward-rearward direction at a lower part; and a little finger support (28) that has a plate shape, is provided with a second hinge part (30) on an upper side thereof, is fixed or unfixed by a second fastening part (32) in a state where the first hinge part and the second hinge part are disposed in a straight line, and is rotatable about the second fastening part.