Battery-Powered Lifting Device with Removable Housing Access
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Solution Overview
Problem
Existing lifting technologies are time-consuming and costly to install, and their mobility is limited due to the need for an electrical or pneumatic power supply, restricting their installation to areas with access to these resources.
Innovation Solution
A portable lifting device with a battery-powered electric motor and control unit, allowing for easy installation and operation without external power sources, featuring a string mechanism for movement and sensors for directional control, along with a detection element for load management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a known lifting arrangement connected to electrical or pneumatic power supply is used, then the lifting device can lift relatively heavy objects, but the installation is time-consuming and costly due to dependency on external power supply access
Solution Approach 1:
The patent extracts the power supply from external sources and relocates it into the lifting device itself through a portable battery unit. This extraction eliminates the dependency on external electrical or pneumatic infrastructure, allowing the device to be installed in locations without such supplies while maintaining the capability to lift heavy objects.
Solution Approach 2:
The patent introduces a battery-powered electric motor as an intermediary power source between the control system and the lifting mechanism. This intermediary replaces the need for external power infrastructure, enabling portable operation while maintaining sufficient power output for heavy object lifting.
2Ease of operation
If the casing weight is increased to provide integrated power supply, then installation simplicity and mobility are improved, but the lifting capacity may be decreased
Solution Approach 1:
The patent segments the power supply system into a separate, removable battery unit that can be independently mounted to the casing. This segmentation allows the battery to be attached only when portable operation is needed, and removed or replaced when not required, thus adding weight only when necessary and maintaining lifting capacity when the battery is absent.
Solution Approach 2:
The patent makes the power supply configuration dynamic by allowing the battery to be releasably mounted and removed based on operational needs. The casing can transition between a lightweight state (without battery) for maximum lifting capacity and a heavier state (with battery) for portable operation, optimizing the trade-off between weight and mobility.
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 provides a flexible and mobile lifting solution with simplified installation, increased mobility, and reduced material costs, while maintaining a lifting capacity of up to 300 N, allowing for efficient object handling without the need for external power sources.
Implementation Method 1
an electric motor arranged to be controlled by the control unit to cause the movement of the casing. The lifting device is arranged to adjust the length of the string extending out of the casing by that the electric motor is arranged to wind-up or un-wind the string
Implementation Method 2
The lifting device comprises a battery arranged to power the electric motor
Data Source
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AI summary
A lifting device (100) comprises a casing (120) arranged to be displaced when the lifting device (100) is operated to lift of an object (110), and a string (130) extending out of the casing (120). The casing (120) is suspendable in the string (130). Moreover, the lifting device (100) comprises a maneuverer member (170), connected to the casing (120) and arranged to provide sensing signalling representative of a direction of the movement. Moreover, the casing (120) comprises a control unit (140) arranged to control the length of the string (130), and an electric motor (150) arranged to be controlled by the control unit (140) to cause the movement. Furthermore, the lifting device (100) comprises a battery (160) arranged to power the electric motor (150). The casing (120) has an opening (310) and is arranged to hold the battery (160) to obscure the opening (310) when the battery (160) is releasably mounted in the casing (120), whereby when the battery (160) is released from the casing (120), the opening (310) provides access to the string (130) and any parts inside the interior of the casing (120) that may cooperate with the string (130) or that are in the vicinity of the string (130).