Telescopic Suitcase Handle Locking Without Internal Cables
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Solution Overview
Problem
Conventional telescopic suitcase handles require internal hardware such as cables to control the locking mechanism, limiting design flexibility, especially for narrow or solid handle designs that lack internal space for such components.
Innovation Solution
A telescopic suitcase handle with a spring-loaded protrusion and bullet mechanism that allows for locking without a button on the handle or internal cable, using a recessed handle housing and spring-loaded bullets to control the extendible sections, enabling a more versatile and aesthetically flexible design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a button and cable system is used to control the locking mechanism, then the locking functionality is reliable, but the design flexibility is limited due to the need for internal space to accommodate hardware
Solution Approach 1:
The patent removes the button and cable components from the telescopic handle design. Instead, the locking mechanism is controlled directly through the handle structure itself, where the handle sections interact with locking features embedded in the housing. This extraction of unnecessary components eliminates the need for internal cable routing and button mounting space, thereby improving design flexibility while maintaining reliable locking functionality through the simplified direct mechanical interaction.
2Adaptability or versatility
If narrow or solid handle designs are used, then the aesthetic flexibility and compactness are improved, but the internal space for accommodating locking mechanism hardware is reduced
Solution Approach 1:
The patent eliminates the need for internal cable and button hardware by redesigning the locking mechanism to function without these components. The handle sections directly engage with locking features in the housing through their own structural elements, removing the requirement for dedicated internal spaces to accommodate control hardware. This enables narrow and solid handle designs that maintain both aesthetic flexibility and sufficient internal space.
Solution Approach 2:
The patent merges the handle structure with the locking mechanism control function. The handle sections themselves serve as both the structural element and the control element for the locking mechanism, eliminating the need for separate control components. This integration allows the handle to maintain a clean, compact design without requiring additional internal space for separate hardware components.
3Ease of operation
If a button on the handle is used to control the locking mechanism, then the operation is convenient, but the handle design becomes more complex with additional components
Solution Approach 1:
The patent removes the button component from the handle design. The locking mechanism is controlled directly through the natural movement and positioning of the handle sections themselves, which engage with or disengage from locking features in the housing based on their extended or retracted positions. This eliminates the need for separate control buttons while maintaining ease of operation through intuitive positional control.
Solution Approach 2:
The handle structure serves its own dual function: it provides both the structural support and the control mechanism for locking. The handle sections automatically engage with or disengage from the locking features through their own movement, without requiring separate control components. This self-service approach simplifies the overall design by reducing component count while maintaining operational convenience.
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
Enables telescopic suitcase handles to be designed without internal cables, allowing for a wider range of designs, including narrow or solid handle configurations, while maintaining effective locking functionality.
Implementation Method 1
a spring-loaded protrusion that releasably engages with one of a plurality of openings along the length of the lower extendible handle section for temporarily holding the lower extendible handle section in place
Data Source
AI summary
A telescopic suitcase handle is provided for including a telescopic handle housing disposed within a suitcase, a lower extendible handle section movably disposed within the telescopic handle housing, and an upper extendible handle section movably disposed within the lower section. A spring loaded bullet disposed within the upper section releasably engages with one of a plurality of openings along the length of the lower section for temporarily holding the upper extendible handle section in place. A spring-loaded protrusion releasably engages with the lower extendible handle section for temporarily holding the lower section in place.