Tablet Stand Locking Base With Constricting Collar Rotation Control

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Solution Overview

Problem

Users of electronic tablets desire a support system that allows for adjustable positioning and rotation while preventing unwanted twisting, especially when used as a stationary device with wired connections, as existing solutions fail to securely lock the display at desired angles and orientations.

Innovation Solution

A tablet support stand with a base that includes a constricting mechanism featuring an expandable and contractible annular collar, an intermediate plate, and a stop lock, which provides significant resistance to rotation by applying forces on planar surfaces and restricts rotation to prevent excessive twisting, while allowing for adjustable tension and secure locking.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a simple clamp mechanism is used to secure the tablet, then the device complexity is reduced, but the resistance to torque and twisting forces is insufficient

Engineering Contradiction:
Improvelocking mechanism complexityVSAvoidresistance to torque
Core Design Contradiction:
Device complexityVSStrength

Solution Approach 1:

The locking mechanism transitions from a simple clamp to a constricting collar that applies radial compression forces. By changing from unidirectional clamping to multidirectional radial constriction, the mechanism achieves significantly higher torque resistance while maintaining relatively simple construction. The collar's ability to apply force from multiple directions simultaneously creates mechanical advantage against twisting forces.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The constricting collar's inner diameter is made adjustable rather than fixed, allowing the user to tighten or loosen the grip on the cylindrical column. This parameter change enables the same mechanism to provide both easy adjustment capability and strong locking force when tightened, resolving the contradiction between simplicity and strength.

Inventive Principle:
Principle #35Parameter changes

2Stability of the object's composition

If the base is fixed to prevent rotation, then stability is improved, but the ability to adjust positioning is lost

Engineering Contradiction:
Improvebase stabilityVSAvoidpositioning adjustability
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The base mounting system is designed to be dynamically adjustable rather than statically fixed. The constricting collar can be loosened to allow rotation and repositioning of the base, then tightened to lock it in place. This dynamic capability enables the base to transition between stable (locked) and adaptable (adjustable) states as needed.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The constricting collar mechanism allows the user to easily adjust and lock the base position without requiring tools or complex procedures. The self-contained design with integrated adjustment capability enables the user to service the positioning needs themselves, balancing stability with adjustability.

Inventive Principle:
Principle #25Self-service

3Strength

If the collar is tightly constricted to prevent rotation, then resistance to torque increases, but the ease of operation for adjustment decreases

Engineering Contradiction:
Improveresistance to rotationVSAvoidadjustment ease
Core Design Contradiction:
StrengthVSEase of operation

Solution Approach 1:

The adjustment mechanism operates in periodic cycles of loosening and tightening. The user periodically loosens the collar to adjust the position, then tightens it to lock the position. This periodic action pattern allows easy adjustment when needed while maintaining strong resistance to rotation during normal use, resolving the contradiction between operability and security.

Inventive Principle:
Principle #19Periodic action

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 effectively secures the electronic tablet at desired angles and orientations, resisting significant torque and preventing wire tangling, while allowing for adjustable positioning and secure locking, thus enhancing user flexibility and device stability.

Implementation Method 1

A significant resistance to rotation is provided by a small amount of contracting (tightening) of the annular collar and essentially squeezing of the intermediate plate

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 2

reducing the diameter of the annular collar forces the collar downward towards a top surface of the intermediate plate and also forces the base against the underside of the intermediate plate

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Implementation Method 3

A further aspect of the invention includes a stop lock that restricts rotation of the collar about the column

Methodology Applied
Scientific EffectMechanical Fastener: Mechanical Fastener

Data Source

PatentUS9968188B1Locking base for tablet stand
Publication Date: 2018.05.15 HAVIS
  • US9968188B1 patent drawing
  • US9968188B1 patent drawing
  • US9968188B1 patent drawing

AI summary

A lockable electronic tablet stand is described that allows rotation and fixes the tablet stand in a locked relation. The stand includes a base that allows the tablet stand to rotate about the base while cords extend through a center of the base.