Rotatable Torsion Spring Door Closer Mechanism
Solution Overview
Problem
Existing door opening mechanisms, such as push plate and panic boom arrangements, are limited in the variety of product versions they can produce, lacking flexibility in operation mode and installation orientation.
Innovation Solution
A door opening mechanism that incorporates a torsion spring to switch between push and pull operations and a movable bevel gear plate for versatile installation, along with a micro switch to indicate the mechanism's state, allowing for diverse product configurations and easy adaptation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed push plate arrangement is used, then the mechanism structure is simple, but the product version variety is limited
Solution Approach 1:
The torsion spring is designed to be rotatable in its mounting position, allowing the door opening mechanism to dynamically switch between push plate and pull plate operation modes. This dynamic reconfiguration enables a single mechanism structure to produce multiple product versions, resolving the contradiction between versatility and structural simplicity.
Solution Approach 2:
The mechanism incorporates universal components such as the rotatable torsion spring and reconfigurable force transmission parts that enable the same basic structure to perform multiple functions (push and pull operations). This multi-functionality allows one mechanism design to serve multiple product versions without requiring completely separate structures for each variant.
2Adaptability or versatility
If the torsion spring is fixed in position, then the manufacturing is simple, but the operation mode cannot be changed
Solution Approach 1:
The torsion spring is designed with rotational freedom in its mounting, allowing it to be oriented in different directions to change the operation mode from push to pull or vice versa. This dynamic positioning capability enables operation mode changes while maintaining a relatively simple manufacturing process, as the spring itself remains unchanged - only its mounting orientation varies.
3Adaptability or versatility
If the bevel gear plate is fixed, then the assembly is straightforward, but the installation orientation is limited
Solution Approach 1:
The bevel gear plate is designed to be movable or reconfigurable within the force transmission assembly, allowing the installation orientation to be adjusted according to different door configurations. This dynamic positioning capability enables right-hand or left-hand installations while maintaining straightforward assembly procedures through standardized connection interfaces.
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
Enables a greater range of product versions by allowing operation mode changes and flexible installation, reducing storage needs and enhancing user experience with a compact design.
Implementation Method 1
The door opening mechanism comprises a torsion spring (8), which can be turned in the opposite direction
Data Source
Figure 1~2
Figure 3~5
AI summary
The invention relates to a door opening mechanism (1), such as a push plate or panic boom. The invention forms a mechanism, in which its manner of operation can be changed by turning or placing a given part or parts at another site. Additionally, to it can also be added a switch (10) to indicate the state of the mechanism.