Displaceable Hinge Pin for Cabinet Door Alignment
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Solution Overview
Problem
Existing door hinges for equipment cabinets are difficult to adjust and align due to manufacturing tolerances and ergonomic challenges, making it hard to produce and install them easily.
Innovation Solution
The door design features a longitudinally displaceable hinge pin with an angular fold and a beveled centering pin, along with a spring device and a laterally projecting cross piece, allowing for easy alignment and secure fixation without excessive force, and accommodating manufacturing tolerances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a traditional hinge with fixed pin is used, then the structure is simple and easy to manufacture, but the door alignment and hinge adjustment are difficult due to manufacturing tolerances
Solution Approach 1:
The hinge pin is designed to be longitudinally displaceable within the hinge body rather than fixed, allowing dynamic adjustment of the door position. The pin can move along the longitudinal axis to compensate for manufacturing tolerances and achieve proper door alignment, transforming a static structure into a dynamically adjustable one.
Solution Approach 2:
The hinge is divided into separate functional components: the hinge body, the displaceable hinge pin, and the centering pin. This segmentation allows independent adjustment of alignment (via pin displacement) and securing (via centering pin engagement), resolving the contradiction between adjustment capability and structural simplicity.
2Ease of operation
If the hinge pin is fixed in the hinge body, then the hinge is stable, but adjustment of the door position is not possible
Solution Approach 1:
The hinge pin is designed with longitudinal displacability within the hinge body, enabling dynamic adjustment of door position during installation and use. This dynamic capability allows the pin to be positioned at different locations along its guide path to achieve proper alignment while maintaining stability when positioned.
Solution Approach 2:
The guide opening in the hinge body acts as an intermediary structure that allows the hinge pin to move longitudinally. This guide path mediates between the need for adjustment (movement) and stability (constrained movement within defined boundaries), enabling easy door position adjustment while maintaining hinge integrity.
3Strength
If excessive assembly force is applied to secure the hinge, then the hinge is firmly fixed, but damage to the door or fold may occur
Solution Approach 1:
The centering pin with its beveled end face performs the centering and positioning function automatically during assembly without requiring external tools or excessive force. The bevel guides the pin into the recess, allowing the hinge to self-center and secure itself gently, avoiding damage to the door or fold while achieving firm fixation.
Solution Approach 2:
The beveled centering pin acts as an intermediary element that mediates between the hinge body and the door fold. The bevel distributes the assembly force over a larger area and guides the engagement, preventing concentrated stress that could damage the door while ensuring secure fixation of the hinge.
4Manufacturing precision
If the hinge body is inserted without centering, then assembly is quick, but manufacturing tolerances cause misalignment
Solution Approach 1:
The hinge assembly performs its own centering function through the beveled centering pin that automatically engages with the recess in the fold. This self-centering mechanism eliminates the need for external centering tools or complex alignment procedures, achieving precise hinge positioning while maintaining quick assembly speed.
Solution Approach 2:
The beveled end face of the centering pin is prepared in advance to facilitate automatic engagement with the recess. This preliminary geometric preparation ensures that when the hinge body is inserted, the centering action occurs automatically without requiring additional alignment steps, combining precision with assembly speed.
Data Source
Figure 1~2
Figure 3a~3b
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AI summary
The invention relates to a door (10) for an equipment cabinet, in particular a distribution cabinet, with at least one detachably attached hinge (12; 42) which has a hinge body (30, 50) with a metallic hinge pin (14, 44) which hinge pin (14, 44) engages in a recess provided for this purpose in the equipment cabinet and thus guides the door (10) pivotally, wherein the door (10) is provided on at least one longitudinal side with a rebate (11) in which rebate (11) the hinge body (30, 50) is inserted and fixed, and wherein the hinge pin (14, 44) is guided longitudinally displaceably in the hinge body (30, 50) so that it projects beyond an end face of the hinge body (30, 50) and engages in the provided recess in the equipment cabinet or that it can be inserted into the housing body and thus connects the door (10) to the equipment cabinet solves.