Sight Compensating Mechanism for Rotation Count Display
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Solution Overview
Problem
Conventional sights with adjusting caps that can only be rotated lack the ability to display the number of rotations and reset the zero-point position, making their operation inconvenient.
Innovation Solution
A compensating mechanism comprising a base unit, a displaying unit with a mark, and a transmission unit that synchronizes the rotation of the adjusting cap with the movement of the displaying unit, allowing the user to visualize the number of rotations and reset the zero-point position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the adjusting cap is designed to rotate only without upward/downward movement, then the structure is simple, but the number of rotation cannot be shown and zero-point position cannot be reset
Solution Approach 1:
The patent combines the rotation function and axial movement function into a single adjusting cap operation. When the user rotates the adjusting cap, it simultaneously rotates about the axis and moves axially through the threaded engagement between the adjusting cap and base unit. This merging of motions allows the device to display rotation count and enable zero-point resetting without requiring separate mechanisms.
Solution Approach 2:
The patent introduces a threaded connection as an intermediary mechanism between the rotating adjusting cap and the base unit. The threads convert the rotational motion into axial movement, enabling the displaying unit to move along the axis in response to cap rotation. This intermediary mechanism bridges the gap between simple rotation and the desired combined rotation-translation functionality.
2Ease of manufacture
If the adjusting cap can only be rotated, then the device is simple to manufacture, but it lacks the ability to display rotation number and reset zero-point
Solution Approach 1:
The adjusting cap serves multiple functions simultaneously: it adjusts the sight position through rotation, displays the number of rotations through the synchronized movement of the displaying unit, and enables zero-point resetting through axial movement. This self-service approach allows a single component to perform what would traditionally require multiple separate mechanisms, maintaining manufacturing simplicity while gaining enhanced functionality.
Solution Approach 2:
The adjusting cap is designed as a multi-functional element that performs adjustment, indication, and resetting operations. The threaded connection provides universal functionality by converting rotational input into both rotational display movement and axial positioning movement, allowing one mechanism to serve multiple purposes that would otherwise require separate systems.
3Loss of information
If the displaying unit moves along the axis with cap rotation, then rotation number is displayed, but the transmission mechanism adds complexity
Solution Approach 1:
The patent replaces complex mechanical transmission systems with a straightforward threaded connection. Instead of using gears, cam mechanisms, or linkages to convert rotation to axial movement, the invention uses the simple, reliable threaded engagement between the adjusting cap and base unit. This mechanical substitution with a fundamental threading principle reduces transmission complexity while achieving the desired motion conversion.
Solution Approach 2:
The patent utilizes the lead parameter of the threaded connection to control the axial movement distance per rotation. By designing the thread pitch appropriately, the displaying unit moves a specific distance along the axis for each rotation of the adjusting cap, providing accurate rotation counting. This parameter-based approach simplifies the transmission mechanism by relying on the inherent properties of threaded fasteners rather than complex motion control systems.
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 convenient operation by clearly showing the number of rotations and allowing precise resetting of the zero-point position, enhancing user experience and accuracy in elevation and windage adjustments.
Implementation Method 1
The annular body includes inner threads, and the base unit includes outer threads mating with the inner threads
Data Source
AI summary
A sight includes a compensating mechanism. The compensating mechanism includes a base unit, a displaying unit, an adjusting cap and a first transmission unit. The displaying unit is disposed on the base unit and includes a mark. The adjusting cap is disposed outside the displaying unit and includes an information displaying portion for showing the mark. The first transmission unit is connected to the adjusting cap and the displaying unit. The adjusting cap is connected to the transmission unit and includes a groove. When the adjusting cap is rotated with respect to the base unit about an axis, the information displaying portion is synchronously rotated with the adjusting cap and the first transmission unit drives the displaying unit to move along the axis so as to change the mark shown by the information displaying portion.