Slide Hinge Screwless Attachment for Honeycomb Doors
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Solution Overview
Problem
Conventional slide hinges fail to securely attach to doors made of honeycomb cardboard, as screws do not work effectively, leading to instability and potential detachment, and existing solutions using synthetic resin materials are either expensive or bulky.
Innovation Solution
A slide hinge design featuring a coupling case and attaching means made of synthetic resin, with diameter enlarging means and a reinforcing frame body, allowing secure attachment without screws or nails, using a hinge pin to enhance strength and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If attaching screws are used to fix the coupling case to the door, then the attachment strength is sufficient for wooden solid material doors, but the attaching screws do not work effectively on honeycomb cardboard doors
Solution Approach 1:
The patent introduces an intermediary attaching means composed of a coupling case and attaching case portions that work together with the hinge pin to create a secure attachment system. This intermediary mechanism adapts to honeycomb cardboard doors by distributing the attachment force through the hinge pin and coupling case structure, eliminating the need for traditional screws that cannot penetrate honeycomb material effectively.
Solution Approach 2:
The patent changes the attachment parameter from screw-based mechanical fastening to hinge pin-based structural interlocking. By modifying the attachment mechanism to use a hinge pin that passes through the coupling case and engages with the door structure, the system achieves effective attachment on honeycomb cardboard without requiring screw penetration, thus adapting to the specific material properties of the door.
2Ease of manufacture
If synthetic resin materials are used for the coupling case and attaching means, then the attachment can be achieved without screws, but the strength and durability are insufficient
Solution Approach 1:
The patent employs composite material construction by combining synthetic resin for the coupling case with a reinforcing frame body made of stronger material. This composite approach allows the coupling case to maintain ease of attachment without screws while the reinforcing frame body provides the necessary strength and durability to prevent detachment and escape during usage.
Solution Approach 2:
The patent incorporates a reinforcing frame body that is preliminarily integrated into the coupling case structure. This reinforcing frame body is provided before the actual attachment operation, creating a pre-strengthened structure that prevents the coupling case from escaping or failing during subsequent usage, thus addressing the strength deficiency of synthetic resin alone.
3Ease of manufacture
If the coupling case is made of thin synthetic resin, then the cost is reduced and ease of attachment is improved, but the fear of escape and insufficient strength remain
Solution Approach 1:
The patent uses composite material construction by combining thin synthetic resin coupling case with a reinforcing frame body. This allows the coupling case to remain thin and cost-effective while the reinforcing frame body provides the structural integrity needed to prevent escape and ensure reliability during usage.
Solution Approach 2:
The reinforcing frame body is provided in advance as part of the coupling case assembly, creating a pre-strengthened structure before attachment. This preliminary reinforcement ensures that even thin synthetic resin coupling cases have sufficient reliability and resistance to escape during normal operation.
Data Source
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AI summary
To provide a slide hinge configured such that a coupling case can be attached to a honeycomb board in a single operation, wherein a fear of problems in terms of strength is eliminated, even if a coupling case composed of the coupling case and the attaching means are made of synthetic resin, as well as a cabinet using such a slide hinge, the slide hinge comprises a slide hinge main body attached to a cabinet main body, a coupling case inserted into and fixed to an attaching hole provided on a door, and a coupling piece for openably and closably coupling the cabinet main body and the coupling case via a hinge pin, wherein an attaching means capable of attaching the coupling case to the door even without using attaching screws is provided. The slide hinge further comprises diameter enlarging means provided in each of the attaching case portions, wherein a reinforcing frame body is provided by inserting the hinge pin at a spot to which the hinge pin is attached.