Drawer guide and laundry treatment apparatus having the same
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Solution Overview
Problem
Conventional drawer guides can cause damage due to excessive external force or spontaneous withdrawal, leading to collisions between the drawer and cabinet, and fail to maintain the drawer in a pressed state without user intervention.
Innovation Solution
A drawer guide with a fixed body, operation body, base slit, slides, transfer units, and an attractive power supply unit that ensures the drawer is moved into the cabinet spontaneously and remains pressed until a preset external force is applied for withdrawal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional drawer guide is used to facilitate drawer withdrawal, then the drawer can be easily pulled out, but excessive external force may cause collision damage between the drawer and cabinet
Solution Approach 1:
The drawer guide performs preliminary action by automatically moving the drawer into the cabinet to a predetermined position before the user completes the insertion. This preliminary movement reduces the distance the drawer must travel under user force, thereby reducing the risk of excessive force causing collision damage.
Solution Approach 2:
The drawer guide acts as an intermediary mechanism between the user and the drawer. It includes components such as a guide body, guide member, and elastic member that mediate the interaction, controlling the drawer's movement and absorbing excess force to prevent damage.
2Ease of operation
If a conventional drawer guide is used, then the drawer can be inserted into the cabinet, but the drawer may be spontaneously withdrawn by vibration even without user force
Solution Approach 1:
The drawer guide performs self-service by automatically generating a retaining force through its elastic member and gear mechanism. This self-generated force actively counteracts vibrations and prevents spontaneous drawer withdrawal, eliminating the need for additional user intervention or external stabilization systems.
Solution Approach 2:
The drawer guide applies preliminary anti-action by continuously exerting a retaining force on the drawer through its elastic member and gear mechanism. This force acts in advance to counteract any potential withdrawal caused by vibrations or other external factors, maintaining drawer position stability.
3Reliability
If the drawer guide automatically moves the drawer into the cabinet, then the drawer remains pressed and controlled, but the device complexity increases
Solution Approach 1:
The drawer guide merges multiple functions into a single integrated mechanism. The guide body, guide member, elastic member, and gear mechanism are combined into one cohesive unit that simultaneously provides guiding, force application, and position control, reducing the need for separate components and simplifying the overall structure.
Solution Approach 2:
The drawer guide exhibits multi-functionality by performing several operations with its integrated mechanism. It guides the drawer's movement, applies force to move the drawer into the cabinet, maintains the drawer in a pressed state, and prevents spontaneous withdrawal - all through a single device that serves multiple purposes.
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 drawer guide effectively moves the drawer into the cabinet automatically and maintains it in a pressed state until sufficient external force is applied, preventing damage and ensuring controlled withdrawal.
Implementation Method 1
a spring provided to connect the base and the first slide with each other and move the first slide towards a rear end of the linear portion wen the first transfer unit is moved to the linear portion from the curved portion
Implementation Method 2
an attractive power supply unit configured to supply a power to the second slide to move the second slide towards a rear end of the linear portion
Data Source
Figure 1
Figure 2
Figure 3
AI summary
There is disclosed a drawer guide comprising a fixed body; an operation body that is withdrawable from the fixed body; base provided in the fixed body; a base slit comprising a linear portion provided along the same direction with the moving direction of the operation body; and a curved portion upwardly or downwardly extended from a front end of the linear portion located in a withdrawing direction of the operation body, the base slit provided in the base; first and second slides movably coupled to the base to be movable along the base and to be movable in communication with each other; a slide slit provided to penetrate the second slide; a first transfer unit having one end movably coupled to the base slit and the other end inserted in the slide slit to penetrate the second slide; a second transfer unit provided in the operation body and detachably coupled to the first transfer unit, the second transfer unit configured to move the first transfer unit to the curved portion from the linear portion when the operation body is moved towards the withdrawing direction from the fixed body and the first transfer unit to the linear portion from the curved portion when the operation body is moved towards the inserting direction in the fixed body; a spring provided to connect the base and the first slide with each other and move the first slide towards a rear end of the linear portion wen the first transfer unit is moved to the linear portion from the curved portion; and an attractive power supply unit configured to supply a power to the second slide to move the second slide towards a rear end of the linear portion.