Trampoline Net Support Post Assembly Using Friction-Fit Joints
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Solution Overview
Problem
Existing trampolines have cumbersome assembly operations due to the use of screws and glass fiber rods for connecting protective net support posts and nets, leading to assembly errors and inefficiencies.
Innovation Solution
A trampoline design with net support posts that have terminal ends inserted into a support frame, using elastic net support bands for tensioned connections, and incorporating water spray nozzles for enhanced user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screws or U-bolts are used to connect net support posts to the support frame, then the connection is secure, but the assembly operation becomes cumbersome and time-consuming
Solution Approach 1:
The patent replaces the traditional mechanical fastening system (screws, U-bolts, tools) with a friction-based insertion system. The net support posts are designed with external dimensions that create friction engagement within the support frame's opening, eliminating the need for threaded fasteners and assembly tools while maintaining secure connection.
Solution Approach 2:
The invention extracts and removes the complex fastening components (screws, U-bolts, washers, nuts) from the assembly system. By relying on friction engagement between the net support post and support frame, the design eliminates these additional parts, simplifying the overall structure and assembly process.
2Reliability
If glass fiber rods are used to connect the protective net to the net support posts, then the net is secured, but the assembly operation becomes more complex and error-prone
Solution Approach 1:
The patent removes glass fiber rods and other intermediate connectors from the net attachment system. The protective net is directly tied to the net support posts using simple knots and bindings, eliminating the need for separate rod components and reducing assembly steps.
Solution Approach 2:
Instead of using rigid rods to hold the net and then attaching the net to the posts, the invention inverts the approach by directly binding the net to the posts. This reversal simplifies the connection method from a multi-component system to a direct attachment system.
3Reliability
If multiple fasteners and connectors are used for assembly, then the structure is secure, but the likelihood of assembly error increases
Solution Approach 1:
The invention extracts and eliminates multiple fasteners and connectors from the assembly system. By using a single insertion action for net support posts and direct tying for net attachment, the design reduces the number of components that could be incorrectly assembled, thereby reducing assembly errors.
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
Facilitates quick and reliable assembly of net support posts and protective nets, provides safer cushioning, and integrates water spray features for enhanced enjoyment.
Implementation Method 1
The protective net is connected to the net support posts such that the protective net is in a tensioned state
Data Source
Figure 1
Figure 2
Figure 2A
AI summary
There is presented an easy-to-assemble trampoline, comprising: a support frame (1) for mounting a rebounding mat (2) and a protective net (3), net support posts (4) for mounting and positioning the protective net (3); wherein terminal ends of the net support posts (4) are inserted into connection joints (14) of the support frame (1), and the protective net (3) is connected to the net support posts (4) such that the protective net (3) is in a tensioned state.