Telescopic Rod Clamping Cable Length Adjustment
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Solution Overview
Problem
Existing telescopic maneuvering rods require time-consuming manual adjustments and often necessitate additional components like motors and complex mechanisms, leading to increased weight and cost, while failing to maintain user grip during length adjustments.
Innovation Solution
A telescopic maneuvering rod with a clamping cable that forms a turn of coil around the second elongated portion, actuated by a control member to apply or release a tensile force, allowing quick and easy length adjustment without changing the user's grasp, using a blocking/unblocking device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a telescopic rod uses manual adjustment mechanisms (such as loosening/tightening bushings), then the rod can be adjusted in length, but the adjustment process is time-consuming and requires repeated operations throughout the working day
Solution Approach 1:
The rod transitions from a static fixed-length structure to a dynamic adjustable-length structure. The second elongated portion can telescopically extend and retract within the first elongated portion, allowing the rod length to be dynamically changed during operation to adapt to different working distances.
Solution Approach 2:
The blocking/unblocking device enables the rod to self-adjust its length without requiring the user to manually loosen or tighten components. The user simply activates the blocking device to lock the desired length, and the rod maintains this setting automatically throughout the working day, eliminating repeated adjustment operations.
2Extent of automation
If a telescopic rod uses an electric motor for length adjustment, then the adjustment can be automated, but the weight and total costs of the rod increase considerably
Solution Approach 1:
The blocking/unblocking device is designed to be manually activated with minimal effort, allowing the rod to automatically maintain its adjusted length without requiring continuous user intervention or powered assistance. The mechanical blocking mechanism holds the rod at the desired length passively, eliminating the need for motors and power systems.
Solution Approach 2:
The invention removes the motor and power supply components from the rod system entirely. Instead of using powered adjustment mechanisms, the design relies on a simple mechanical blocking device that can be manually activated, thereby eliminating the weight and complexity associated with electric motors while still providing automated length maintenance.
3Reliability
If a telescopic rod uses complex mechanisms for blocking/unblocking, then the rod can be securely locked at adjusted lengths, but the mechanical complication and device complexity increase
Solution Approach 1:
The rod is divided into distinct segments (first elongated portion and second elongated portion) that can move independently relative to each other. The blocking device is segmented into separate components (blocking member, actuation member, control member) that work together through simple mechanical interactions, reducing overall complexity while maintaining secure locking.
Solution Approach 2:
Instead of using a complex mechanism that requires multiple steps to lock and unlock, the invention uses a simple blocking device that works in reverse: the rod is free to extend, and the blocking device simply needs to be activated to prevent further extension. This inverted approach simplifies the mechanism while ensuring reliable locking at the desired length.
4Adaptability or versatility
If a user adjusts the rod length by traditional mechanisms, then the length can be changed, but the user must change their grasp position on the handle, which is inconvenient during working conditions
Solution Approach 1:
The blocking/unblocking device is positioned and designed so that the user can activate it with their existing grasp on the handle during normal working conditions. The device automatically maintains the adjusted length without requiring the user to release or reposition their grip, allowing continuous operation with stable hand placement.
Solution Approach 2:
The handle and control mechanism are designed to serve multiple functions: the user grasps the handle for normal operation and simultaneously uses it to activate the blocking device for length adjustment. This multi-functional design eliminates the need for separate adjustment mechanisms that would require changing grip positions, streamlining the operation.
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 rapid and efficient length adjustment of the maneuvering rod without losing the user's grip, reducing time waste and mechanical complexity, and eliminating the need for motors and additional components.
Implementation Method 1
move between an actuation position, in which is arranged to generate a predetermined tensile force on said clamping cable, and, therefore, to tighten said second elongated portion of said manoeuvring rod at said, or each, turn of coil
Implementation Method 2
said clamping cable is wound about said second elongated portion, in such a way to form at least a turn of coil... impedes said second elongated portion to freely slide with respect to said first elongated portion
Data Source
Figure 1~2
Figure 3~4
Figure 5~6B
AI summary
Manoeuvring rod (1) comprising a first elongated portion (10) tubular-shaped and provided with a handle portion (15) configured to be grasped by a user, and a second elongated portion (20) engaged to the working tool (50). The elongated portions (10, 20) are mutually telescopically engaged in such a way to be able to freely slide one with respect to the other. A blocking/unblocking device (30) is then provided arranged to move from a blocking configuration, in which impedes the above disclosed free sliding, to an unblocking configuration, in which, instead, allows the above disclosed free sliding. The above mentioned movement of the blocking/unblocking device (30) from the blocking configuration to the unblocking configuration, or vice versa, is directly actuated by the user by acting on a control member (55) positioned at the handle portion (15).