Wrist-Worn Dispenser With Finger-Fold Activation for Same-Hand Use
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wrist-worn dispensing devices require the opposite hand to operate, making repetitive tasks inconvenient and potentially harmful, especially in risky conditions, and there is a lack of a wrist-worn pet treat dispenser that can be activated by the same hand.
Innovation Solution
A wrist-worn dispensing device that allows objects to be dispensed into the same hand by folding the fingers to activate a mechanism, eliminating the need for arm movement and enabling instant access to objects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a wrist-worn dispensing device is used, then object dispensing is enabled, but the device requires the opposite hand to operate it
Solution Approach 1:
The device enables the same hand that wears the device to operate it through finger folding activation. The activation mechanism is integrated into the wrist-worn device itself, allowing self-service operation without requiring the opposite hand, thus improving ease of operation while maintaining manageable device complexity through intuitive design
Solution Approach 2:
Instead of requiring the opposite hand to activate the device (conventional approach), the invention inverts the operation mode to allow the same hand to activate it through finger folding. This inversion resolves the contradiction by making the device operable by the wearing hand itself, eliminating the need for cross-hand operation
2Productivity
If repetitive reaching motions are used to access objects, then objects can be obtained, but arm and joint pain or damage may occur
Solution Approach 1:
Objects are pre-loaded into the wrist-worn dispensing device before the task begins. This preliminary action eliminates the need for repetitive reaching motions during task execution, as objects are dispensed directly from the device worn on the wrist, thereby maintaining productivity while preventing joint pain or damage from repeated arm movements
Solution Approach 2:
The wrist-worn dispensing device acts as an intermediary between the user and the objects. Instead of directly reaching into a container, the device mediates object delivery by dispensing objects automatically when activated, thus eliminating repetitive reaching motions while maintaining efficient object access
3Quantity of substance
If a container is placed outside the natural range of movement, then object storage is enabled, but reaching becomes inconvenient and harmful
Solution Approach 1:
The solution transitions from storing objects in a separate container located outside the natural range of movement to integrating object storage within a wrist-worn device. This dimensional change places the storage capacity directly on the user's wrist, within the natural range of movement, thereby maintaining object storage capability while dramatically improving reaching convenience
4Productivity
If the container opening is made wide, then object retrieval is faster, but objects may fall off or be snatched
Solution Approach 1:
The dispensing mechanism uses a dynamic barrier that moves between open and closed positions based on activation state. When activated, the barrier opens to allow rapid object retrieval; when inactive, it closes to secure objects. This dynamic control resolves the contradiction by providing both fast retrieval speed and reliable object security at different operational states
5Reliability
If the container opening is made narrow, then object security is improved, but object retrieval becomes slower
Solution Approach 1:
The barrier mechanism dynamically adjusts the opening width based on activation. In the secured state, the barrier maintains a narrow or closed position for object security. Upon activation, the barrier rapidly opens to a wide position enabling fast object retrieval. This dynamic adjustment resolves the contradiction between security and retrieval speed
6Ease of operation
If the activation means is positioned for opposite hand operation, then device operation is enabled, but same-hand operation is not possible
Solution Approach 1:
The activation means is designed with universal operability, positioned and configured to accommodate activation by either the same hand or the opposite hand. This multi-functional design resolves the contradiction by enabling both same-hand operation (for convenience and safety) and opposite-hand operation (for traditional use patterns), thus providing adaptability while maintaining ease of operation
Data Source
AI summary
The present invention discloses a wrist/forearm worn dispensing device that is configured to dispense objects into the hand on which it is worn by using the same hand. The device comprising a strap for wearing it around the wrist or forearm, and a storage container that can be filled with dispensable objects through an inlet opening. An activation handle extends from the device towards the fingers of the hand on which it is worn in a position allowing the activation means to be engaged by folding of the fingers to press it, thereby triggering a dispensing mechanism disposed within the device to release at least one dispensable object out of the device through an outlet opening and into the palm of the hand on which the device is worn.