Ladder Tree Stand Raising Apparatus Using Pulley and U-Arm Engagement
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Solution Overview
Problem
Ladder tree stands are cumbersome and difficult to transport, position, and secure due to their bulkiness and heaviness, often requiring multiple individuals for these tasks.
Innovation Solution
An apparatus and method involving an elongated member, lateral members, and pulleys to raise a ladder tree stand into position adjacent to a tree, allowing for adjustable lengths and U-shaped arms to secure the stand, and a rope and pulley system for manual or vehicle-assisted lifting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If ladder tree stand is made preassembled for easy setup, then assembly time is reduced, but weight and bulk increase making it difficult to transport and position
Solution Approach 1:
The tree stand system is divided into separate components: a lightweight ladder stand unit and a separate raising apparatus with elongated member and lateral members. This segmentation allows the stand to be lightweight for transport while the raising apparatus handles the positioning task, resolving the contradiction between assembly ease and transport difficulty.
Solution Approach 2:
The raising apparatus acts as an intermediary device between the ground and the tree stand. It uses the tree itself as an anchor point through the elongated member, and employs lateral members with U-shaped arms to engage and lift the stand rungs, enabling single-person operation without requiring multiple individuals to manually position the heavy stand.
2Weight of moving object
If ladder tree stand is made lightweight for easy transport, then transportability is improved, but structural strength and stability decrease
Solution Approach 1:
The raising apparatus serves as a mechanical intermediary that transfers and distributes loads. The elongated member anchored to the tree and the lateral members engaging the stand create a stable triangular support structure, allowing the lightweight stand to be safely raised and secured without compromising structural integrity during the positioning process.
Solution Approach 2:
The raising apparatus uses the tree itself as a counterweight and anchor point. The elongated member secured to the tree provides a stable reference point that balances the weight of the stand being raised, enabling lightweight construction while maintaining stability during the raising operation.
3Device complexity
If traditional manual positioning method is used, then device complexity is reduced, but operation difficulty and time increase requiring multiple people
Solution Approach 1:
The raising apparatus with its elongated member and lateral members acts as a mechanical intermediary that simplifies the positioning operation. The U-shaped arms on the lateral members automatically engage with the stand rungs, and the system uses the tree as an anchor, reducing the operational complexity to a single-person task while maintaining mechanical advantage.
Solution Approach 2:
The raising apparatus is designed to be self-positioning through the interaction of its components. The elongated member anchors to the tree, and the lateral members with U-shaped arms automatically engage the stand rungs when pulled, allowing the system to raise itself with minimal human intervention and no complex controls.
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
Minimizes the effort required to raise a ladder tree stand into position, enabling single-person operation and reducing the complexity of securing the stand to a tree, enhancing ease of use and accessibility.
Implementation Method 1
An assembly for raising a ladder tree stand into position adjacent to a tree includes at least one pulley, a ladder support, and a rope
Implementation Method 2
When the rope is pulled away from the tree, the rung of the ladder tree stand pivots within the open end of the at least one arm of the lateral member, and the ladder tree stand raises into the position adjacent to the tree
Implementation Method 3
The at least one arm is engageable with a rung of the ladder tree stand. An open end of the at least one arm extends away from the second lateral member
Data Source
AI summary
A ladder tree stand raising apparatus for raising a ladder tree stand into position adjacent to a tree. The apparatus comprising an elongated member, a first lateral member, and a second lateral member. The elongated member having a first end and a second end. The first end of the elongated member is connectable to the tree. The first lateral member is connected to the second end of the elongated member. The second lateral member is connected to the elongated member and spaced a distance from the first lateral member. The second lateral member has at least one arm having a substantially U-shaped configuration. The at least one arm is engageable with a rung of the ladder tree stand. An open end of the at least one arm extends away from the second lateral member.