Handheld Appliance Locking Interface With Low-Force Accessory Release
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing handheld kitchen appliance release mechanisms require significant user effort due to wear and dirt accumulation, leading to decreased user comfort and increased activation force.
Innovation Solution
A handheld kitchen appliance interface with a locking device featuring a bendable holding bracket and a single-button activation mechanism, allowing for radial movement of engagement elements to facilitate easy release of accessory parts with reduced friction and manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional release mechanisms with multiple buttons and expansion clamps are used, then the accessory can be securely locked, but the user must apply significant activation force due to wear and dirt accumulation
Solution Approach 1:
The patent changes the operational parameter from linear button pressing to rotational torque application. The twist activation mechanism converts rotational motion into radial movement of the retention member, allowing the accessory to be released with minimal force by exploiting the rotational unlocking action rather than overcoming friction through direct linear force.
Solution Approach 2:
Instead of pushing buttons to release the accessory, the user rotates the accessory or main body in the opposite direction of engagement. This inverse rotational action automatically triggers the release mechanism, reversing the conventional approach where release requires active disengagement through multiple buttons.
2Reliability
If traditional release mechanisms with multiple buttons are used, then the accessory can be securely locked, but the device complexity and manufacturing costs increase
Solution Approach 1:
The patent merges the functions of multiple release buttons into a single integrated twist mechanism. The rotational activation simultaneously controls the release of the accessory, eliminating the need for separate buttons and reducing mechanical complexity while maintaining secure locking through the same rotational interface.
Solution Approach 2:
The rotational interface serves multiple functions: it engages the accessory during insertion, maintains secure locking during operation, and releases the accessory when rotated in the opposite direction. This multi-functional design eliminates the need for separate engagement and release mechanisms.
3Reliability
If traditional release mechanisms with two buttons are used, then the accessory can be securely locked, but the user comfort decreases due to requiring two-handed operation
Solution Approach 1:
The patent segments the release function from the engagement function, allowing the accessory to be engaged with one hand while release can be achieved with minimal effort through rotation. The twist mechanism can be activated with thumb motion or light rotational input, enabling one-handed operation for both engagement and release.
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 a user-friendly, low-force operation for releasing accessory parts by minimizing friction and requiring only a single button press, enhancing user comfort and reducing assembly costs.
Implementation Method 1
The at least one holding bracket comprises a bendable part on which the engagement element is provided. The manual release force causes a bending of the holding bracket resulting in a radially directed movement of the at least one engagement element from the first to the second position.
Data Source
Figure 1a~1b
Figure 2
Figure 3
AI summary
The present invention relates to mounting of accessory parts to a main unit of a handheld kitchen appliance. In order to provide a facilitated way of operation, a handheld kitchen appliance interface (10) for releasably mounting of an accessory part to a main unit, comprising a body structure (12), an insertion opening (14), a locking device (16), and an activation device (18). The insertion opening is provided in the body structure for inserting an insert end of an accessory or of a main part of a handheld kitchen appliance. The locking device comprises at least one engagement element (20) moveably guided by the body structure and being movable between a first position (P1), in which the engagement element is provided to engage a locking element of an insert end of the accessory or the main part inserted into the opening to provide axial fixation of the insert end in relation to the body structure, and a second position (P2), in which the engagement element is provided to be disengaged to allow axial displacement of the insert end in relation to the body structure. The activation device comprises a button (24) for applying a manual release force. The locking device comprises at least one holding bracket (26) supported by the body structure in at least one fixation point (28) such that during an activation of the interface, the fixation point maintains stationary relative to the body structure. The at least one holding bracket comprises a bendable part (30) on which the engagement element is provided. Further, the manual release force causes a bending of the holding bracket resulting in a radially directed movement (32) of the at least one engagement element from the first to the second position.