Immersion Blender Dual-Button Lock to Prevent Unintentional Activation
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Solution Overview
Problem
Existing immersion blenders require multiple appliances and specific batteries for different food processing techniques, leading to inconvenience and inefficiency due to battery depletion and unintentional activation, which fails to maximize space and functionality in food preparation environments.
Innovation Solution
An immersion blender design featuring a housing with a selectively coupled battery pack, a rotatable shaft, and a user interface with a power button and lock button that activates the motor only when both buttons are simultaneously held, allowing for extended operation with interchangeable battery packs and preventing unintentional activation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single on/off control button is provided near the handle, then the device is simple to operate, but the battery can be inadvertently pressed and depleted when simply picking up the appliance
Solution Approach 1:
The patent applies preliminary anti-action by requiring a two-button simultaneous press mechanism before the motor can operate. This preliminary requirement prevents unintentional activation that would occur with a single button, as the user must deliberately press both buttons at the same time to activate the device, thereby preventing inadvertent battery depletion while maintaining ease of operation.
2Adaptability or versatility
If multiple food processing appliances are used for different techniques, then each specific function is optimized, but space in the food processing environment is wasted and multiple batteries must be stored
Solution Approach 1:
The patent applies universality by designing a single immersion blender appliance that can perform multiple food processing techniques through interchangeable attachments and variable speed control. The motorized immersion blender can function as a blender, mixer, and other food processing tools, eliminating the need for multiple separate appliances and reducing storage space requirements while maintaining adaptability for different food processing needs.
Data Source
AI summary
An immersion blender includes a housing, and a battery pack is selectively coupled to the housing. An implement includes a shaft cover that extends from the housing along an axis. A rotatable shaft is located in the shaft cover. A motor is located in the housing and is operably connected to a first end of the shaft. An implement tool is operably connected to a second end of the shaft. A user interface includes a power button and a lock button that are configured to activate the motor only while the power button and the lock button are simultaneously held.