Cable Tie Tightening Mechanism With Direct Force-Limit Release
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Solution Overview
Problem
Conventional cable tie tools lack efficiency, ergonomics, and versatility in tightening and cutting operations, necessitating an improved design for enhanced user experience and streamlined cable management.
Innovation Solution
A cable tie tightening device with a gripping unit, cutting unit, and actuator unit that utilizes a leverless mechanism for adjusting the force limit, featuring a direct engagement between the retaining element and cylinder element, reducing parts and improving force alignment, and allowing for a slimmer design with improved precision and ergonomics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a conventional cable tie tool design is used, then the device can perform basic tightening and cutting functions, but the device complexity increases due to multiple levers and pivots, and the force alignment is suboptimal
Solution Approach 1:
The patent removes intermediate levers and pivots from the mechanical transmission path, creating a direct connection between the actuator unit and the gripping/cutting units. This extraction of unnecessary components reduces device complexity while improving force alignment precision and overall reliability
Solution Approach 2:
The patent introduces a direct mechanical coupling mechanism that serves as an efficient intermediary between the actuator piston and the gripping/cutting units, eliminating the need for multiple intermediate levers and pivots while maintaining precise force transmission
2Weight of moving object
If multiple intermediate levers and pivots are used in the actuator mechanism, then the device can provide mechanical advantage, but the weight of the device increases and the number of moving parts increases
Solution Approach 1:
The patent extracts and removes intermediate levers and pivots from the actuator mechanism, significantly reducing the weight of moving parts and the number of moving components while maintaining mechanical advantage through a direct piston-to-grip connection
Solution Approach 2:
The patent merges the functions of multiple separate mechanical components (levers, pivots, connection elements) into a single integrated direct-connection mechanism, reducing overall weight and part count while preserving the necessary mechanical advantage for cable tie tightening
3Length of moving object
If the force adjusting unit is positioned away from the actuator unit, then the alignment of acting forces is improved, but the device length increases
Solution Approach 1:
The patent nests the force adjusting unit within or adjacent to the actuator unit housing, allowing the alignment of acting forces to be optimized without increasing the overall device length, as the components are arranged in a compact, space-efficient configuration
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 device achieves better handling, precision, and reduced wear with optimized force alignment, enhancing user experience and operational efficiency in cable management tasks.
Implementation Method 1
an actuator unit configured to automatically, i.e. pneumatically and/or hydraulically and/or electrically actuate the gripping unit and the cutting unit
Implementation Method 2
an actuator unit configured to automatically, i.e. pneumatically and/or hydraulically and/or electrically actuate the gripping unit and the cutting unit
Implementation Method 3
an actuator unit configured to automatically, i.e. pneumatically and/or hydraulically and/or electrically actuate the gripping unit and the cutting unit
Implementation Method 4
the force adjusting unit comprises a retaining element configured to retain a cylinder element of the actuator unit in a given position until the adjustable force limit is reached
Implementation Method 5
the retaining element is configured to be connected, i.e. engaged directly with the cylinder element when retaining the cylinder element in the given position
Implementation Method 6
The retaining element is configured to be disconnected, i.e. disengaged from the cylinder element when the adjustable force limit is exceeded and/or reached
Data Source
AI summary
Disclosed are cable tie tightening devices with cutting functionality, including a gripping unit configured to grip and pull a cable tie strap until an adjustable force limit is reached, a cutting unit configured to cut the strap, an actuator unit configured to automatically actuate gripping and cutting units, a force adjusting unit configured to adjust the adjustable force limit, where the gripping unit is attached to a piston element of the actuator unit at one side and the force adjusting unit includes a retaining element configured to retain a cylinder element of the actuator unit in a given position until the adjustable force limit is reached, while the retaining element is configured to be connected directly with the cylinder element when retaining the cylinder element in the given position, and to be disconnected from the cylinder element when the adjustable force limit is reached or exceeded.