Interchangeable Toggle Handle Set for Privacy and Passage Modes

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Solution Overview

Problem

The current system of maintaining separate handle sets for different functions (entry, privacy, and passage) incurs additional costs and inventory management challenges, as users often cannot afford or switch between these functions without purchasing new handle sets.

Innovation Solution

A handle set design that includes a toggle mechanism with a locking notch and toggle housing, allowing for conversion between privacy and passage modes through the attachment of different toggle heads, enabling a single handle set to serve both locked and unlocked configurations based on user preference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If separate handle sets are maintained for different functions (entry, privacy, passage), then each function can be optimized for its specific use case, but inventory costs and shelf space requirements increase

Engineering Contradiction:
Improvefunctional optimizationVSAvoidinventory quantity
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The handle set is designed with a universal body that can perform multiple functions (entry, privacy, passage) by accepting different toggle heads. The toggle mechanism with interchangeable heads allows a single handle set to adapt to different locking requirements, eliminating the need to maintain separate handle sets for each function and thereby reducing inventory quantity while preserving functional optimization.

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

2Reliability

If separate handle sets are maintained for different functions, then each function has dedicated hardware, but shelf space at retail locations increases

Engineering Contradiction:
Improvefunctional specializationVSAvoidshelf space
Core Design Contradiction:
ReliabilityVSArea of stationary object

Solution Approach 1:

A single handle set body is designed to accommodate multiple toggle heads (privacy, passage, entry) through a standardized mounting interface. This universality allows retailers to display one handle set type instead of multiple specialized handle sets, significantly reducing the shelf space required while maintaining the functional specialization through interchangeable components.

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

3Quantity of substance

If a single handle set is designed to perform multiple functions, then inventory costs are reduced, but the device complexity increases

Engineering Contradiction:
Improveinventory quantityVSAvoidhandle set configuration
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The handle set is segmented into two independent parts: a permanent handle set body and interchangeable toggle heads. This segmentation allows the complex multi-functional capability to be achieved through a simple exchange of modular components rather than a single complex unit, making the configuration management easier while reducing inventory requirements.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The handle set incorporates a dynamic configuration system where the toggle mechanism can be adjusted by replacing heads based on functional requirements. This dynamic adaptability allows the same physical hardware to transition between different functional states (locked, unlocked, passage mode) without requiring multiple static handle set designs, thereby reducing inventory while managing complexity through standardization.

Inventive Principle:
Principle #15Dynamics

4Reliability

If users purchase separate handle sets to change function, then each function can be optimized, but user cost and time increase

Engineering Contradiction:
Improvefunctional performanceVSAvoidtime to switch functions
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The handle set is divided into a permanent body and interchangeable toggle heads, allowing users to switch functions by simply replacing the toggle head rather than purchasing an entirely new handle set. This segmentation enables rapid function changes while maintaining optimized functional performance through specialized heads for each purpose.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The handle set incorporates a dynamic configuration system where the toggle mechanism can be adjusted by replacing heads based on functional requirements. This dynamic adaptability allows users to transition between different functional states (locked, unlocked, passage mode) without the time and cost of purchasing new handle sets, while preserving the functional optimization of each mode.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS11834869B2Dual function handle set
Publication Date: 2023.12.05 ASSA ABLOY AMERICAS RESIDENTIAL INC
  • US11834869B2 patent drawing
  • US11834869B2 patent drawing
  • US11834869B2 patent drawing

AI summary

A handle set includes a main body that has a handle and a faceplate positioned around the handle, the faceplate having a toggle aperture. The handle set includes a locking mechanism that includes a locking piece that has a locking notch. The locking mechanism includes a toggle positioned within a toggle housing, the toggle being movable relative to the toggle housing. The toggle includes a toggle tail configured to be received into the locking notch. The toggle includes a toggle head removably attached to the toggle tail, the toggle head being at least one of a privacy attachment button and a passage attachment button. At least a portion of the privacy attachment button extends from the toggle aperture and beyond the faceplate. The passage attachment button interfaces with the toggle housing to prevent relative movement between the passage attachment button and the toggle housing.