L-Shaped Gutter Rebate Element for Greenhouse Pane Security
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Solution Overview
Problem
Existing greenhouses face risks of pane breakage during installation and use, leading to potential injuries and adverse consequences, as traditional panes can shatter under wind and snow loads, and there is no effective solution to mitigate this risk.
Innovation Solution
Incorporating a pressure-distributing element of L-shaped cross-section in the rebate of the gutter section, with a first leg in a longitudinal groove of the end wall and a rib from the second leg in a side wall groove, to distribute the pane's weight and prevent point loads, ensuring secure clamping and reducing breakage risks, while also enhancing air-tightness and energy efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional panes are used in the greenhouse, then the structure is simple and cost-effective, but the risk of pane breakage is high leading to safety hazards
Solution Approach 1:
A pressure-distributing element is introduced as an intermediary component between the pane and the gutter section. This element has an L-shaped cross-section with a first leg accommodated in a longitudinal groove of the end wall and a second leg with a longitudinal rib in a longitudinal groove of the side wall. The intermediary distributes the pane's weight across a larger area, preventing point loads that cause breakage, while maintaining ease of installation and structural simplicity.
2Reliability
If panes are securely clamped to prevent breakage, then reliability improves, but ease of installation and maintenance deteriorates
Solution Approach 1:
The pressure-distributing element incorporates elastic ribs that can dynamically adjust their clamping force. During installation, the ribs are flexible enough to allow easy placement of the pane. Once the pane is installed, the elastic ribs exert a continuous pressing force to securely clamp the pane, preventing breakage from wind and snow loads. This dynamic behavior allows the system to transition between ease of installation and secure clamping.
Solution Approach 2:
The elastic modulus and cross-sectional dimensions of the pressure-distributing element are carefully selected to achieve optimal performance. The element is designed with sufficient elasticity to allow easy installation but with enough rigidity to provide secure clamping under load. By adjusting these parameters, the system balances installation ease with pane security.
3Use of energy by stationary object
If traditional rebate structures are used, then device complexity is low, but air-tightness is insufficient leading to higher energy consumption
Solution Approach 1:
The pressure-distributing element performs multiple functions simultaneously: it distributes the pane's weight to prevent breakage, provides secure clamping to hold the pane in place, and creates an air-tight seal between the pane and the gutter section. By integrating these functions into a single component, the system improves energy efficiency through better air-tightness without significantly increasing overall structural complexity.
Data Source
Figure 1
Figure 2A
Figure 2B
AI summary
A greenhouse comprising at least one gutter section (3) and a roof (1) extending from said gutter section (3), wherein the roof (1) comprises a ridge section as well as spaced-apart glazing bars (4) which are connected to an edge of the gutter section (3) near one end and to the ridge section (2) near their other end, and wherein panes (5) are provided between adjacent glazing bars (4), which panes are supported in rebates in the glazing bars (4) and in a rebate (6) of the gutter section (3), characterised in that a pressure-distributing element (7) of substantially L-shaped cross-section is provided in the rebate (6) of the gutter section, wherein a first leg (8) of the L-shaped cross-section is accommodated in a longitudinal groove (9) of an end wall (10) of the rebate (6) near its free end, and wherein a longitudinal rib (12) extending downward from a second leg (11) of the L-shaped cross-section is accommodated in a longitudinal groove (13) of a side wall of the rebate near its free end.