Projection Foot Mount Elevating Mechanism
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Solution Overview
Problem
Conventional projection apparatus height-adjusting mechanisms are cumbersome and occupy too much space, requiring additional buttons for operation and lacking precise height adjustment capabilities.
Innovation Solution
An elevating mechanism with a housing, guide slot, adjustable foot mount, resilient members, and sliding arm that uses a push-push mechanism to store or release the adjustable foot mount, allowing for fine-tuned height adjustments through a cam-like mechanism with multiple teeth and recesses, enabling precise positioning without additional buttons.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional height-adjusting device with push button and resilient member is used, then the projection apparatus can be height adjusted, but the device occupies too much space and is cumbersome
Solution Approach 1:
The patent combines the height adjustment function with the foot mount structure itself, eliminating the need for separate buttons and resilient members. The foot mount directly engages with the guide slot to provide both support and adjustment functionality, significantly reducing the space required for the adjusting mechanism.
Solution Approach 2:
The foot mount serves multiple functions: it provides structural support, enables height adjustment, and acts as the adjustment mechanism itself through its engagement with the guide slot. This multi-functionality eliminates the need for dedicated adjustment components, reducing overall device complexity and space occupation.
2Reliability
If additional buttons and resilient members are used for height adjustment, then the adjustment mechanism is complete, but the device structure becomes complex and occupies more space
Solution Approach 1:
The patent extracts and eliminates unnecessary components (buttons and resilient members) from the adjustment mechanism. The foot mount directly engages with the guide slot through its geometric shape, providing reliable adjustment functionality without requiring additional components, thus simplifying the overall device structure.
3Area of stationary object
If a simple storage mechanism is used, then the device occupies less space, but precise height adjustment capability is lost
Solution Approach 1:
The guide slot employs a cam-like curved structure with varying width that precisely controls the foot mount's movement trajectory. This curved geometry enables fine height adjustments while maintaining a compact design, as the foot mount's engagement with the curved slot provides precise positioning without requiring additional adjustment components.
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
Enables rapid storage and release of the adjustable foot mount, occupying less space while allowing for accurate and fine adjustments of the projection lens height, facilitating easier image positioning.
Implementation Method 1
at least one resilient member is disposed inside the housing and leans against the adjustable foot mount
Data Source
AI summary
An elevating mechanism of a projection apparatus includes a housing, a guide slot, an adjustable foot mount, at least one resilient member, and a sliding arm. The guide slot is formed on a surface of the housing and having multiple sections to form a sliding path. At least one section has multiple teeth, and a recess is formed between each two adjacent teeth. The sliding arm has a fixed end and a free end, the fixed end is fixed on the adjustable foot mount, and the free end is slidably coupled to the guide slot. When the sliding arm slides on the section having the teeth, the free end of the sliding arm engages with any of the recesses to hold the adjustable foot mount at a selected position.