Crossbow Stirrup with Arrow Protector
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Solution Overview
Problem
Crossbows pose safety risks due to the interference between the arrow's trajectory and the user's foot when cocking or uncocking the string, especially in low visibility conditions, and existing stirrups do not provide adequate support or protection for the arrow, leading to potential injuries and instability.
Innovation Solution
A stirrup design that positions the user's foot away from the arrow's trajectory, incorporating a frame with a foot-receiving portion located down from the longitudinal axis of the crossbow, and an arrow protector that contacts the ground to stabilize the crossbow, while also using vibration-absorbing materials to reduce noise and improve ergonomics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the stirrup is positioned at the longitudinal distal end of the crossbow to accommodate the user's foot, then the crossbow can be stabilized to the ground, but the foot interferes with the arrow's trajectory and causes safety hazards
Solution Approach 1:
The stirrup is repositioned from the longitudinal distal end to the lateral side of the crossbow, changing its spatial dimension. This lateral displacement removes the foot from the arrow's trajectory path while maintaining the crossbow's stability on the ground, effectively resolving the safety hazard without compromising stabilization function
2Ease of operation
If the stirrup is narrow to fit a single foot, then the crossbow can be held stable, but the angular support is insufficient and stability is reduced
Solution Approach 1:
The stirrup is divided into multiple foot-receiving portions, allowing multiple feet to be accommodated separately. This segmentation increases the total support area and provides better angular support for stabilizing the crossbow, while still maintaining ease of operation for the user
3Device complexity
If the arrow is left unprotected in the armed position, then the crossbow structure is simple, but foreign objects can contact the arrow and move it from its optimal position
Solution Approach 1:
An arrow protector is introduced as an intermediary component between the arrow and the external environment. This protector shields the arrow from foreign objects and debris that could displace it, ensuring the arrow remains in its optimal position without significantly complicating the overall crossbow structure
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
The solution effectively prevents foot interference with the arrow, enhances crossbow stability, reduces noise, and improves ergonomics by positioning the foot away from the arrow's trajectory and using vibration-absorbing materials, thereby enhancing user safety and operational efficiency.
Implementation Method 1
The stirrup is made of a vibration-absorbing material or includes vibration-absorbing elements therein to reduce the operating noise of the crossbow
Data Source
AI summary
A crossbow with a stirrup disposed on the distal end of the body, the stirrup including an arrow protector disposed along the arrow trajectory, on the first end of the body, to generally circumvent the arrow, when the crossbow is used in conjunction with the arrow. An arrow protector adapted to be retrofitted on a crossbow is encompassed by the present application. An arrow protector improving stability of the crossbow when axially resting on the ground is also presented herein.