Appliance Cabinet Door Hinge Tool-Free Adjustment
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Solution Overview
Problem
Existing door hinges for electrical appliance cabinets require the use of a screwdriver to adjust the hinge, which is inconvenient and prone to accidental dislocation when the door is closed.
Innovation Solution
A door hinge design featuring a base body with a first fastening means that determines the pivot point and an adjusting mechanism supported on the inner side of the rebate, allowing for adjustment without tools, and a second fastening means that secures the base body in the rebate without needing to be operated manually.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a screwdriver is used to adjust the door hinge, then the hinge can be securely fastened, but the adjustment process becomes complex and requires separate tools
Solution Approach 1:
The adjustment mechanism allows the door hinge to be adjusted without requiring external tools. The user can directly manipulate the adjustment element (screw or lever) integrated into the hinge assembly, enabling self-service adjustment and eliminating the need for a screwdriver.
Solution Approach 2:
The hinge assembly integrates both the fastening function and the adjustment function into a single mechanism. The same structural elements that provide secure fastening also enable tool-free adjustment, combining multiple functions into one compact design.
2Ease of operation
If the adjustment mechanism is accessible from the outer side, then adjustment is easy, but the mechanism may be accidentally dislocated when the door is closed
Solution Approach 1:
The adjustment mechanism is positioned on the inner side of the rebate, utilizing the third dimension (depth) rather than being exposed on the outer surface. This spatial repositioning allows the mechanism to remain accessible for adjustment while being protected from accidental dislocation when the door is closed.
Solution Approach 2:
The rebate structure acts as an intermediary that provides a protected space for the adjustment mechanism. The rebate cavity shields the adjustment elements from external forces while still allowing access from the inner side for intentional adjustment operations.
3Stability of the object's composition
If the base body is securely fixed in the rebate, then the door hinge is stable, but adjustment of the base body becomes difficult
Solution Approach 1:
The hinge design incorporates dynamic characteristics that allow the base body to be easily adjustable during installation and maintenance, while providing stable fixing during normal operation. The adjustment mechanism enables temporary loosening for repositioning, followed by secure locking in the desired position.
Solution Approach 2:
The hinge assembly is divided into separable components including the base body, rebate, and fastening elements. This segmentation allows the base body to be independently adjusted within the rebate while maintaining overall structural stability through the fastening mechanism.
Data Source
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AI summary
A door for an appliance cabinet, in particular a distribution cabinet, is described, with at least one hinge (1), which is fixed releasably thereto and which has a base body (3) with a hinge pin (4), said hinge pin (1) engaging in a cutout provided for this purpose in the appliance cabinet in question and thus guiding the door pivotably, wherein the door is provided on at least one longitudinal side with a rebate (20), wherein the base body (1) is inserted into said rebate (20), and wherein the rebate (20) is angular, and wherein that limb (21) of the rebate (20) which points towards the inner side of the cabinet is provided with a first cutout (10). The base body (3) comprises a first fastening means (5), and the base body (3) when inserted into the rebate is pivotably fixed on the door by means of a second fastening means (7) passing through said first cutout (10) and cooperating with the first fastening means (5) to form a configuration which pivotably fixes the base body (3) in the rebate (20), the first fastening means (5) determining the pivot point (6) of the door hinge (1). The base body (3) comprises an adjusting means for enabling an adjustment of the base body (3) with respect to the door, wherein said adjustment means, when the base body (1) is inserted into said rebate (20), is supported at the door and is configured to be operated at the side of that limb (21) of the rebate (20) which points towards the inner side of the cabinet.