Gripper Device with Pivotable Hooked Fingers for Crate Handling

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Solution Overview

Problem

Existing gripper devices require precise guidance and control to handle beverage crates of specific contours and sizes, limiting their versatility in gripping and palletizing different types and sizes of crates.

Innovation Solution

A gripper device with multiple pivotable gripper units, each equipped with hook-shaped fingers that can be arranged at different heights and moved linearly, allowing for flexible engagement with lateral recesses of varying sizes and heights, and featuring independent mounting and spring-activated mechanisms for secure gripping.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional hook gripping systems with centrally controlled tilting shafts are used, then the gripping mechanism can handle standard crate sizes, but the system lacks versatility for different crate types and sizes

Engineering Contradiction:
Improvegripping capability for different crate typesVSAvoidgripper structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The gripper is divided into multiple independent gripper units (at least two), each with its own pivotable hooks. Each gripper unit can independently engage with crates of different sizes and configurations, eliminating the need for a single complex centralized control system while increasing adaptability to various crate types.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The hooks are designed to be pivotable rather than fixed, allowing each gripper unit to dynamically adjust its engagement angle and position. This dynamic capability enables the same gripper structure to handle multiple crate sizes and configurations without requiring complex reconfiguration mechanisms.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If fixed-height hooks are used, then the gripping mechanism is structurally simple, but it cannot accommodate crates with recesses at varying heights

Engineering Contradiction:
Improveaccommodation of varying recess heightsVSAvoidgripper structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The hooks are arranged at different vertical heights within the gripper assembly, adding a vertical dimension to the gripping capability. This multi-level arrangement allows simultaneous engagement with crates having recesses at different heights, expanding the range of accommodatable crate configurations without requiring complex adjustable mechanisms.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Adaptability or versatility

If precisely guided and controlled gripper devices are used, then gripping reliability for specific crate contours is improved, but the system cannot flexibly handle different crate formations

Engineering Contradiction:
Improvehandling of different crate formationsVSAvoidgripping reliability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

By segmenting the gripper into multiple independent units with pivotable hooks, each unit can independently adapt to the specific contour and formation of the crate while maintaining reliable engagement. This segmentation allows the system to handle various crate formations reliably without requiring complex centralized guidance and control mechanisms.

Inventive Principle:
Principle #1Segmentation

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 reliable and safe gripping and palletizing of different crate sizes and formations, including rows and layers, with improved tolerance for varying box dimensions and recess heights, enhancing operational flexibility and efficiency.

Implementation Method 1

featuring independent mounting and spring-activated mechanisms for secure gripping

Methodology Applied
Scientific EffectSpring mechanism: Spring

Data Source

PatentEP2284115B1Gripper device
Publication Date: 2015.06.24 KRONES AG
  • EP2284115B1 patent drawingFigure 1
  • EP2284115B1 patent drawingFigure 2
  • EP2284115B1 patent drawingFigure 3

AI summary

A gripping device (10) for simultaneously grasping and/or gripping several containers and/or boxes (12) open at the top and provided with lateral recesses (14), with or without beverage containers or bottles contained therein, is disclosed. The gripping device (10) comprises at least two gripping units (16), each having a plurality of movable gripper fingers (18) with hook-shaped ends (20) that can be inserted into the lateral recesses (14) of the containers and/or boxes (12). The hook-shaped ends (20) of the at least two gripper fingers (18) of the respective gripping units (16), which can be engaged separately with the box recesses (14), are arranged at different heights relative to the box recesses (14).