Loading Apparatus Shaft Bridging Lock Members

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Solution Overview

Problem

Conventional loading work apparatuses face difficulties in attaching implement tools when the interval between booms is the same as or smaller than the interval between lock members, due to the fixed positioning of lock members and transverse/support shafts.

Innovation Solution

The apparatus features coupling members with upright brackets on either side of lock members, where the transverse shaft is supported at the lower portions and the support shaft at intermediate portions of these brackets, allowing the transverse and support shafts to bridge across lock members, enabling attachment even with narrower boom intervals.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the transverse shaft and support shaft are arranged laterally outward of each lock member, then the lock members can be positioned at fixed locations for common attachment, but the apparatus cannot be applied when the boom interval is the same as or smaller than the lock member interval

Engineering Contradiction:

Improveapplicability to different boom intervalsVSAvoidfixed positioning of shafts and lock members

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent repositions the transverse shaft and support shaft from lateral arrangement to a configuration where they bridge across the lock members in the longitudinal dimension. This dimensional reorganization allows the shafts to span over the lock members rather than being arranged laterally outward, enabling the apparatus to function with narrower boom intervals while maintaining all original components.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Ease of operation

If the transverse shaft and support shaft are positioned laterally outward, then the structure is simpler with fixed component locations, but attachment is impossible when booms are too close together

Engineering Contradiction:

Improveattachment capabilityVSAvoidspatial arrangement of components

Core Design Contradiction:

Ease of operationVSShape

Solution Approach 1:

Instead of arranging the shafts laterally outward from the lock members, the patent inverts this spatial relationship by positioning the shafts to bridge across the lock members. This inversion of the conventional arrangement allows the shafts to span over the lock members, enabling attachment functionality even when the boom interval is restricted, thus solving the spatial constraint problem.

Inventive Principle:

Principle #13The other way round (Inversion)

Data Source

PatentUS8979468B2Loading work apparatus with attachment tools

Publication Date: 2015.03.17 KUBOTA CORP

AI summary

A loading work apparatus includes booms, attachment tools, an implement tool removably attached to the attachment tools, and implement tool cylinders. The implement tool includes an engaged member on a back surface thereof. The attachment tools include an attachment unit having an engaging member engaged with the engaged member, coupling members supporting the transverse shaft, and lock members locking/unlocking engagement between the engaging member and engaged member. Each coupling member includes brackets on lateral opposite sides of the lock member. The transverse shaft is supported at opposite ends thereof by lower portions of the right and left brackets. The support shaft is supported at opposite ends thereof by intermediate portions of the right and left brackets. The transverse shaft and the support shaft bridge across the lock member.