Skin Treatment Device Rotary Attachment Interface
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Solution Overview
Problem
Existing skin treatment devices lack versatility, intuitive use, and safety features, particularly in preventing accidental harm from improper usage.
Innovation Solution
A skin treatment device with a drive unit and attachment system featuring a rotary support element with protrusions and recesses that allow for engagement and disengagement, enabling safe and efficient transmission of rotational movement while preventing damage from excessive forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed attachment system is used, then the device structure is simple, but the device lacks versatility and adaptability
Solution Approach 1:
The device is divided into a drive unit and multiple interchangeable attachments. Each attachment can be independently selected and mounted on the drive unit, allowing versatile skin treatment functions while keeping each individual component relatively simple in structure.
Solution Approach 2:
The drive unit is designed with a universal attachment interface that can accommodate multiple types of attachments (e.g., brush, sponge, scrubber). This allows a single drive unit to perform multiple skin treatment functions by simply changing the attachment, thereby achieving versatility without requiring multiple separate devices.
2Adaptability or versatility
If an engagement mechanism is added to allow attachment detachment, then versatility is improved, but the risk of accidental harm from improper usage increases
Solution Approach 1:
The engagement mechanism incorporates a safety feature that prevents improper attachment or detachment. The mechanism only allows engagement when the attachment is correctly aligned and properly inserted, and only allows detachment when the correct release action is performed. This preliminary prevention of improper usage reduces the risk of accidental harm to the user or device.
Solution Approach 2:
The engagement mechanism provides tactile feedback to the user during attachment and detachment operations. When the attachment is correctly engaged, the user feels a specific engagement click or resistance. When improper usage is attempted, the mechanism provides immediate feedback (e.g., inability to engage, unusual resistance) that prevents harmful operations.
3Productivity
If rotational movement is transmitted through the attachment, then skin treatment effectiveness is improved, but vibration and noise increase
Solution Approach 1:
A flexible coupling element acts as an intermediary between the drive unit's rotational movement and the attachment. This flexible coupling transmits the rotational motion while absorbing excess vibrations and reducing noise transmission to the attachment and user, thereby maintaining skin treatment effectiveness while minimizing harmful vibrations and noise.
Data Source
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AI summary
The present invention concerns a skin treatment device for professional and private use. In particular the present invention concerns a skin treatment device (10) comprising a drive unit (20) and an attachment (30), the drive unit (20) comprising an output element (60) and a rotary support element (50) rotating about an axis of rotation, the rotary support element (50) comprising protrusions, the attachment (30) comprising a skin treatment element (32) and a chassis (34) for the skin treatment element (32), the chassis (34) comprising a multitude of recesses to cooperate with the protrusions of the rotary support element (50) of the drive unit (20), wherein the chassis (34) can be supported by the rotary support element (50) and wherein the protrusions can be brought into an engagement position with the recesses, while the chassis (34) is supported by the rotary support element (50), and the protrusions can be brought into a disengagement position with the recesses, while the chassis (34) is supported by the rotary support element (50).