Clothing dryer
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Solution Overview
Problem
Clothing dryers experience door sagging over time, leading to potential damage to the door and door locking device, which reduces the durability and functionality of the appliance.
Innovation Solution
A door locking device with a restoring member, including levers and engaging units, that allows vertical and horizontal movement to stabilize the door and prevent damage, and can be easily coupled to the main body without screws, featuring a leaf spring for restoring force and insertion spaces for secure alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the door is coupled to the main body with a fixed door locking device, then the door can be securely locked, but the door and locking device may be damaged due to sagging phenomenon over time
Solution Approach 1:
The door locking device is designed with movable components including a body unit that can move vertically and horizontally relative to the main body, and a locking unit with a locking member that moves horizontally along a rotating shaft. This dynamic structure allows the locking device to adapt to door position changes and sagging, preventing damage while maintaining secure locking functionality
Solution Approach 2:
The restoring member (leaf spring) provides restoring force that changes the position parameters of the body unit, enabling it to move vertically and horizontally to compensate for door sagging. This parameter adjustment allows the locking device to maintain proper engagement despite changes in door position over time
2Reliability
If the door locking device has a complex structure with multiple components, then the locking function is improved, but the assembly becomes difficult requiring screwing
Solution Approach 1:
The door locking device is divided into distinct modular units: a body unit containing the restoring member and lever mechanisms, and a separate locking unit with the locking member. This segmentation allows each unit to be manufactured and assembled independently, then coupled to the main body through simple insertion into coupling holes without requiring screwing, while maintaining the complete locking function
Solution Approach 2:
The locking unit is disposed inside the body unit, with the locking member positioned within the rear case of the body unit. This nested arrangement allows the complex locking mechanism to be contained within a compact structure that can be easily coupled to the main body as a single assembly, simplifying installation while preserving the multi-component locking functionality
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 solution effectively prevents door and locking device damage from sagging, enhances durability, and simplifies assembly by allowing easy coupling without screws, improving the overall performance and longevity of the clothing dryer.
Implementation Method 1
a restoring member which is provided between the body unit and the coupling hole, supports the body unit, and comprises a restoring force
Implementation Method 2
A first hole including a space in which an end of the first lever moves vertically is formed in the front plate
Data Source
AI summary
Disclosed herein is a clothing dryer in which a structure of a door locking device is improved and a door is detachable from a main body. The clothing dryer includes a main body including a coupling hole formed in a front surface thereof, a drying drum installed inside the main body and including an opening formed in a front surface thereof, a door, and a door locking device coupled to the coupling hole and installed in the main body so that the engaging member is detachable from the main body, and the door locking device includes a body unit, a locking unit disposed inside the body unit and from which the engaging member is detachable, and a restoring member which is provided between the body unit and the coupling hole, supports the body unit, and includes a restoring force.