Firearm Stock Comb Display Integration
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Solution Overview
Problem
Existing firearms with display devices face issues such as interference with the user's vision of the terrain, altered sighting elements, and ergonomic and morphological changes due to external display placements, leading to decreased accuracy and increased manufacturing costs.
Innovation Solution
A firearm stock with a built-in receptacle and display device on the comb, allowing users to access essential information without altering the firearm's original morphology or ergonomics, maintaining visual access and reducing external components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If display devices are placed on the handgrip or sides of the firearm, then users can access information about the firearm, but the user loses visual access to the terrain and the information displayed is not visible during firing
Solution Approach 1:
The display device is integrated into the comb of the stock, utilizing the vertical dimension and the natural line of sight of the user. By positioning the display in the comb area rather than on horizontal surfaces like the handgrip or sides, the information becomes visible in the user's peripheral vision during aiming, resolving the contradiction between information access and terrain visibility
Solution Approach 2:
The comb of the stock serves dual functions: its traditional role in providing comb safety and cheek rest, and as a mounting location for the display device. This multi-functional use of the comb allows the firearm to provide both tactile/visual feedback during firing and information display without adding separate components that would obstruct the view
2Loss of information
If screens are made rotatable to remain sloping or perpendicular with respect to the firearm side, then the user has access to information on the screen, but the user loses vision of the terrain when the screen is unfolded
Solution Approach 1:
The display device is extracted from the rotating screen mechanism and integrated directly into the comb of the stock. This eliminates the need for rotation and unfolding mechanisms, providing a fixed, always-visible display position that does not obstruct the terrain view when not in use
Solution Approach 2:
Instead of making the screen rotatable to achieve visibility, the solution inverts the approach by making the display fixed in the comb where it is naturally visible during aiming. The user's head position and line of sight naturally bring the comb-mounted display into view without requiring mechanical movement
3Ease of operation
If multiple screens are installed on each side of the firearm, then the user can unfold the best screen for viewing, but the manufacturing cost increases and additional parts become dirty and wear out
Solution Approach 1:
The display information is segmented into multiple virtual displays or information panels within a single physical display device integrated into the comb. This allows the user to select different information views (cartridge count, status, etc.) without requiring multiple physical screens, reducing component count while maintaining information variety
Solution Approach 2:
Instead of providing multiple physical screens, the system creates virtual copies of information displays within a single physical unit. The display can show different information sets or perspectives without requiring duplicate hardware, eliminating wear and contamination issues while maintaining information accessibility
4Loss of information
If external display devices are placed on the firearm, then the user can obtain information, but the sighting elements are altered or inhibited and the firearm ergonomics are harmed
Solution Approach 1:
The display device is merged with the comb of the stock, combining the information display function with the existing ergonomic structure. This integration ensures that the display does not alter the sighting elements or harm ergonomics, as the comb is already positioned in the user's line of sight and does not interfere with the barrel or sight alignment
Data Source
AI summary
Firearm stock of the type which comprise an electronic control unit in said stock and comprising a receptacle with at least one opening in the stock comb and which is configured to receive a display device. It also comprises a battery configured to be connected to the display device and a control unit configured to receive data from the electronic control unit and send it to the display device. When the display device is installed it is housed in the receptacle and the user has visual access to it by the opening of the comb so that he has access to all the firearm information in his own line of sight when he is aiming. Furthermore, the stock is equally valid for left and right-handed people.