Oven Door Hinge With Integrated Fluid Damper
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Solution Overview
Problem
Hinges for kitchen oven doors are structurally complex, increasing production costs and assembly time, and are challenging to disassemble due to their integration within the oven body, which is further complicated by high temperatures and awkward repair access.
Innovation Solution
A hinge design featuring a fluid-operated damper integrated into the door's first arm, using a kinematic system with a U-shaped containment body and a metal plate second arm, allowing for controlled door closure with reduced noise and ease of assembly and disassembly, by relocating the damper from the oven body to the door.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If a damping device and elastic parts are integrated into the oven body structure, then the door closing motion is controlled and noise is reduced, but the structural complexity increases and repair accessibility deteriorates
Solution Approach 1:
The hinge is divided into separate functional components: a first arm with containment body for the damping device, a second arm for the door, and a rocker lever. This segmentation allows the damping function to be isolated in a modular unit that can be easily assembled and disassembled without affecting the entire hinge structure or oven body.
Solution Approach 2:
The damping device and elastic parts are extracted from the oven body structure and relocated to the first arm of the hinge. This extraction eliminates the need to disassemble oven components for hinge repair while maintaining the noise reduction function.
2Object-generated harmful factors
If the damping device is integrated into the oven body, then door closing control is achieved, but repair accessibility and ease of disassembly worsen
Solution Approach 1:
The hinge assembly is segmented into removable components, with the damping device housed in a containment body on the first arm. This allows the damping mechanism to be serviced independently by simply removing the hinge from the oven, without requiring disassembly of oven structures.
Solution Approach 2:
The hinge design allows qualified operators to service the damping device themselves by simply detaching the hinge assembly from the oven and replacing components within the containment body, eliminating the need for complex oven disassembly procedures.
3Reliability
If multiple components are combined in the hinge structure, then door closure control is improved, but production cost and assembly time increase
Solution Approach 1:
The damping device, elastic parts, and hinge arms are combined into a single integrated hinge assembly that functions as one unit. This merging reduces the number of separate assembly operations required, as the entire assembly can be installed by attaching the first and second arms to the oven and door respectively, rather than installing multiple separate components.
4Stability of the object's composition
If the hinge components are positioned within the oven body, then structural integration is improved, but temperature exposure and repair accessibility worsen
Solution Approach 1:
The damping device and sensitive components are extracted from the high-temperature oven body environment and positioned on the hinge arms that extend outward. This relocation reduces thermal exposure while maintaining structural integration through the hinge's connection to both the oven and door.
Solution Approach 2:
The hinge arms act as intermediaries that transmit the door's motion and force to the oven body without requiring the damping components to be positioned within the oven chamber. This allows the damping device to function effectively while remaining in a cooler, more accessible location.
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
The hinge provides a structurally simple, cost-effective, and easy-to-assemble solution that minimizes noise during door closure, is less affected by oven temperatures, and facilitates easier disassembly, while being compatible with existing oven types.
Implementation Method 1
a fluid-operated damper (16) that is fixed to a containment body (17) that is part of the first arm (11)
Implementation Method 2
elastic means (14) for the facilitated closure of the door
Data Source
Figure 1
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AI summary
A hinge (10) for kitchen oven doors, of the type comprising a first arm (11), to be associated with a closure door of a chamber of an oven, and a second arm (12), which is articulated to the first arm (11), to be associated with the structure of the oven, a kinematic system (13) being interposed between the first arm (11) and the second arm (12) and being adapted to actuate elastic means (14) for the facilitated closure of the door, means (15) for slowing the closing movement of the door being also interposed between the first arm (11) and the second arm (12); the means (15) for slowing the closing motion of the door comprise a fluid-operated damper (16) that is fixed to a containment body (17) that is part of the first arm (11); the stem (18) of the fluid-operated damper (16) is actuated by a first contoured end (19) of a guiding element (20), which can translate with respect to the containment body (17); the second contoured end (21) of the guiding element (20) is intended to slide in contact with a pusher portion (22) that is associated with the second arm (12) with a predefined and fixed inclination angle (23).