Lint removing device

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Solution Overview

Problem

Existing lint removing devices often waste space and are inconvenient due to separate functions for trimming and sticking lint, with the roller structure not being easily storable and interfering with each other during use.

Innovation Solution

A lint removing device with a retractable protruding portion and self-locking switch, allowing the sticky lint roller to extend and retract within the handle, utilizing internal space efficiently and maintaining a compact design.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a fixed roller structure is used for sticking lint, then lint sticking function is achieved, but the device occupies unnecessary space and cannot be stored when not in use

Engineering Contradiction:

Improvelint sticking functionVSAvoiddevice space occupation

Core Design Contradiction:

Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

The roller structure is transformed from a fixed state to a movable state, allowing it to extend when needed for lint sticking and retract when not in use. The roller can move along the handling portion, transitioning between extended and retracted positions to adapt to different usage scenarios.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The roller structure is designed to be nested within the handling portion when retracted. The roller can be stored inside the hollow handle, utilizing the internal space of the handle for storage, similar to a nested doll configuration where one object is placed inside another.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Adaptability or versatility

If a fixed roller structure is used for sticking lint, then lint sticking function is achieved, but the structure interferes with trimming operation

Engineering Contradiction:

Improvelint sticking functionVSAvoidtrimming operation convenience

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The roller structure is made dynamic rather than fixed, allowing it to be extended only when lint sticking is needed and retracted during trimming operations. This dynamic positioning eliminates interference with the trimming blade while maintaining the lint sticking function when required.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The device is segmented into separate functional components: the trimming assembly and the roller assembly. The roller is positioned separately on the handling portion and can be independently extended or retracted, allowing the trimming operation to proceed without interference from the roller structure.

Inventive Principle:

Principle #1Segmentation

3Adaptability or versatility

If the roller is extended outside the handle, then lint sticking function is available, but the device loses compactness when not in use

Engineering Contradiction:

Improvelint sticking functionVSAvoiddevice compactness

Core Design Contradiction:

Adaptability or versatilityVSShape

Solution Approach 1:

The roller structure transitions between extended and retracted states dynamically. When lint sticking is needed, the roller extends from the handle; when not in use, it retracts into the handle, maintaining a compact and streamlined device shape similar to a telescopic structure.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The roller is designed to nest within the hollow handle when not in use. The internal cavity of the handle serves as the storage space for the roller, creating a nested configuration that preserves device compactness while maintaining functional capability.

Inventive Principle:

Principle #7Nested doll (Nesting)

4Volume of stationary object

If the handle is used as storage chamber for collected items, then storage space is increased, but the design is unnecessary given the small storage space requirement

Engineering Contradiction:

Improvestorage spaceVSAvoiddesign complexity

Core Design Contradiction:

Volume of stationary objectVSDevice complexity

Solution Approach 1:

The hollow handle is designed with multi-functionality: it serves as both the structural handle for user grip and as a storage chamber for the roller component. This universal design allows the same structure to fulfill multiple functions without adding separate components.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The roller is stored within the hollow handle, utilizing the internal cavity for component storage. This nested arrangement efficiently uses the handle's internal space for storing the roller, transforming the handle into a functional storage chamber for the device's own components.

Inventive Principle:

Principle #7Nested doll (Nesting)

Data Source

PatentUS11744416B2Lint removing device

Publication Date: 2023.09.05 FOSHAN SHUNDE DEERMA ELECTRIC APPLIANCES CO LTD

AI summary

A lint removing device, includes a body, a handle connected to the body, and a lint removing assembly located in the body. The handle is hollow with an opening at one end, while the other end of the handle is connected to an outer wall of the body. The handle includes an extended functional structure, and the extended functional structure includes a fixed portion and a protruding portion. The fixed portion is placed inside the handle. The protruding portion extends out of the handle opening for the extended function, and the protruding portion is fixed in the handle by the fixed portion after the protruding portion is retracted in the handle. The lint removing device with an extended function of the handle enables the lint removing device to expand other functions in addition to the lint removing function.