Telescopic Lifting Arms for Bin-Washer Loading Device
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current loading devices for bin-washer motor vehicles are structurally complex and do not effectively keep lifting arms outside the space dedicated to service equipment while maintaining operational efficiency for gripping, lifting, and tipping containers.
Innovation Solution
The loading device features telescopic lifting arms with a rotational drive assembly and elevator/extractor assemblies, allowing the arms to be compactly retracted above service areas during rest, enabling easy installation and operation without interfering with vehicle equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If telescopic lifting arms are used to reach bins on ground, then gripping capability is improved, but structural complexity increases
Solution Approach 1:
The lifting arm is divided into a first portion and a second portion that can be nested within each other. The second portion is retractable relative to the first portion, allowing the arm to extend when needed for gripping bins and retract to a compact configuration when not in use, thereby reducing structural complexity while maintaining gripping capability.
Solution Approach 2:
The lifting arm is segmented into multiple portions (first portion and second portion) that can move independently. This segmentation allows the arm to achieve extended reach for gripping while maintaining a compact retracted state, simplifying the overall structure compared to a single long telescopic arm.
2Area of stationary object
If lifting arms are kept compact in rest position, then space for service equipment is preserved, but reaching capability may be compromised
Solution Approach 1:
The second portion of the lifting arm is designed to be nested within the first portion during rest, creating a compact configuration that preserves space for service equipment. When operation is needed, the second portion extends outward to provide sufficient reaching capability for gripping bins on the ground.
Solution Approach 2:
The lifting arm transitions from a static compact structure to a dynamic configuration where the second portion can be extended or retracted as needed. This dynamic capability allows the arm to maintain compact dimensions during rest while achieving extended reach during operation, resolving the contradiction between space preservation and reaching capability.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The washing unit (2) of a bin-washer motor vehicle (3) is supported by a chassis (7) having an upper surface lying in a geometric reference plane (P) spaced parallel to a road surface (T). A loading device (1) comprises two lifting arms (8) each having a proximal end (11) and a distal end (12) carrying a gripping terminal (12a). A rotational drive assembly (9) operates to rotate the lifting arms (8) around a rotation axis (X) towards a gripping position in which the gripping terminal (12a) is moved away from the washing unit (2). Each lifting arm (8) has a first portion (8a) extending from the proximal end (11), and a second portion (8b) engaged to the first portion (8a) and sliding radially with respect to the rotation axis (X) towards an extracted position in which the gripping terminal (12a) is moved away from the rotation axis (X).