Christmas Tree Stand Grippers for Uneven Trunk Stability
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Solution Overview
Problem
Existing Christmas tree stands fail to securely grip tree trunks with surface irregularities, and they often require complex assembly and do not allow for easy disassembly or water access, leading to instability and potential damage from spilled water.
Innovation Solution
A Christmas tree stand with flexible grippers having a ball and socket joint and a resilient padding layer to conform to uneven trunks, combined with removable legs and anti-slip pads, and a support plate with dull spikes for stable support and easy assembly/disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If rigid metal spikes are used for engaging the tree trunk, then the structure is simple and strong, but it cannot conform to surface irregularities on uneven trunks
Solution Approach 1:
The patent applies a flexible padding layer (such as rubber or foam) over a rigid support structure on the gripper. This flexible layer conforms to the irregular surface of the tree trunk while the rigid structure underneath provides the necessary strength for gripping. This resolves the contradiction by combining flexibility for adaptation with rigidity for strength.
Solution Approach 2:
The gripper uses composite construction with a rigid metal frame or support structure combined with a flexible padding material. The rigid portion provides structural strength and durability, while the flexible portion adapts to trunk irregularities. This composite approach simultaneously achieves both gripping strength and surface adaptability.
2Stability of the object's composition
If the tree stand is designed as a single integrated piece, then it provides stable support, but it is difficult to disassemble for packaging and storage
Solution Approach 1:
The tree stand is divided into separate modular components including the container, multiple support legs, and grippers that can be detached and reattached. This segmentation allows the stand to be disassembled for compact packaging and storage, while each component maintains its structural integrity to provide stable support when assembled.
Solution Approach 2:
The support legs are designed to be removable and repositionable rather than fixed permanently. This dynamic design allows the structure to be easily assembled and disassembled by users, while still providing stable support when in the assembled state. The legs can be adjusted or removed as needed without compromising the overall stability when properly configured.
3Strength
If the support members are fixed permanently to the container, then the structure is rigid and stable, but it cannot be disassembled for packaging into a small box
Solution Approach 1:
The support members are designed as separate, removable components that can be detached from the container. When disassembled, they can be nested or stacked within the container, significantly reducing the packaging volume. When assembled, they provide the necessary structural rigidity and support.
Solution Approach 2:
The support legs and other components are designed to nest within the container when disassembled. This nesting arrangement minimizes the packaging volume required, allowing the entire stand to be stored in a compact box. When assembled, the nested components extend outward to provide the required structural rigidity and support function.
4Device complexity
If simple rigid attachments are used, then the device complexity is low, but they do not provide secure gripping on uneven trunks
Solution Approach 1:
A flexible padding layer is added to the attachment design to enable conformation to irregular trunk surfaces. This relatively simple addition significantly improves gripping reliability without requiring complex mechanisms, mechanisms, or multiple components. The flexible layer adapts passively to surface irregularities while maintaining grip security.
Solution Approach 2:
The attachment design incorporates materials with appropriate mechanical properties - a rigid structural component for strength combined with a flexible surface layer for adaptation. By carefully selecting material parameters (rigidity, flexibility, friction coefficient), the design achieves reliable gripping on uneven surfaces without increasing overall device complexity.
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 stand securely grips tree trunks, reduces shifting, allows easy assembly and disassembly by one person, accommodates water access, and prevents damage from spilled water, providing stability and ease of use.
Implementation Method 1
a flexible padding layer disposed thereon for securely gripping a trunk of a Christmas tree
Implementation Method 2
Each gripper may comprise a threaded shaft joined to a gripper member by a ball and socket joint
Implementation Method 3
a plurality of grippers threadably connected to the sidewall
Implementation Method 4
a plurality of removable pads, each pad being configured to be positioned on a respective removable leg, and each pad being fabricated of a resilient material for providing an anti-slip surface
Data Source
AI summary
A Christmas tree stand comprises a container having a base and a sidewall extending therefrom, the sidewall having a plurality of outer longitudinal slots; a plurality of removable legs, each removable leg configured to be accommodated within a respective longitudinal slot; and a plurality of grippers threadably connected to the sidewall. Each gripper has a flexible padding layer disposed thereon for securely gripping a trunk of a Christmas tree.