Pineapple Cutting Device with Detachable Ring for Hygienic Cleaning

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Solution Overview

Problem

Existing fruit cutting and peeling devices suffer from hygiene issues due to the difficulty in cleaning long and strong fibers, requiring laborious manual cleaning.

Innovation Solution

A cutting device with a detachable head element and cutting element connected by screw elements or bayonet locks, featuring a conical spreading surface and a linear drive unit, allowing easy disassembly and cleaning, and a peeling and coring device with a central ejection punch for efficient fruit processing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the cutting device uses a integrated design with fixed cutting elements, then the structural stability is improved, but the cleaning difficulty increases due to fiber adhesion on all surfaces

Engineering Contradiction:
Improvestructural stabilityVSAvoidcleaning ease
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The cutting device is divided into separable components: a head element, a cutting element, and a connecting structure. The cutting element can be detached from the head element via the connecting structure (screw elements or bayonet locks), allowing the cutting element to be removed for easy cleaning without disassembling the entire device. This segmentation resolves the contradiction by enabling both structural stability during operation and ease of cleaning through component separation.

Inventive Principle:
Principle #1Segmentation

2Productivity

If the cutting element has a large surface area to effectively cut the pineapple, then the cutting efficiency is improved, but the fiber adhesion problem worsens

Engineering Contradiction:
Improvecutting efficiencyVSAvoidfiber adhesion
Core Design Contradiction:
ProductivityVSObject-generated harmful factors

Solution Approach 1:

By making the cutting element detachable through the connecting structure, the large-surface cutting element can maintain its effective cutting area while being easily removable for cleaning. The segmentation allows the cutting element to perform its function efficiently during operation and be quickly cleaned afterward without fiber adhesion issues.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The cutting element is extracted as a separate, detachable component from the head element. This extraction allows the cutting element to be removed completely for cleaning, eliminating the fiber adhesion problem that would otherwise affect the large surface area used for efficient cutting.

Inventive Principle:
Principle #2Taking out (Extraction)

3Reliability

If the connecting structure is made robust to ensure stable operation, then the operational reliability is improved, but the cleaning accessibility worsens

Engineering Contradiction:
Improveoperational reliabilityVSAvoidcleaning accessibility
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The connecting structure is designed as a separate, modular component that connects the head element and cutting element. This segmentation allows the connecting structure to be designed for robust operation (e.g., with screw elements or bayonet locks) while still being easily accessible for cleaning, as it can be detached with the cutting element or cleaned independently.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The connecting structure is extracted as a distinct component that can be removed or accessed separately. This extraction maintains operational reliability through robust connection mechanisms while improving cleaning accessibility by allowing the connecting structure to be cleaned independently or removed entirely.

Inventive Principle:
Principle #2Taking out (Extraction)

4Ease of operation

If the cutting device uses manual operation without tool requirements, then the ease of operation is improved, but the disassembly capability for cleaning decreases

Engineering Contradiction:
Improveease of operationVSAvoiddisassembly capability
Core Design Contradiction:
Ease of operationVSEase of repair

Solution Approach 1:

The connecting structure is designed with screw elements or bayonet locks that enable tool-free or simple manual disassembly. The screw elements can be unscrewed by hand, and the bayonet locks can be released with a simple rotational motion, allowing the cutting element to be detached for cleaning without requiring special tools while maintaining secure connection during operation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The bayonet lock mechanism provides a dynamic connection that can be quickly engaged and disengaged through simple rotational motion. This dynamic connection maintains operational reliability during cutting while enabling easy manual disassembly for cleaning, resolving the contradiction between ease of operation and disassembly capability.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP4094592B1Cutting device and peeling and coring device for a pineapple
Publication Date: 2025.07.02 HEPRO
  • EP4094592B1 patent drawingFigure 1a)~1b)
  • EP4094592B1 patent drawingFigure 2
  • EP4094592B1 patent drawingFigure 3a)~3b)

AI summary

The present invention relates to a cutting device (1) for peeling and core-removing a pineapple fruit (A), comprising a head element (2), a ring- or ring-shaped cutting element (3) with a one- or multi-part cutting ring (10), and at least one connecting structure (4) linking the head element and the cutting element. The head element comprises at least one fastening means (5) by which the head element can be attached to a drive unit (23), and a central, detachable cutting cylinder (30) is arranged on the head element, which is concentrically enclosed by the connecting structure and the cutting element. The head element and the cutting element each comprise at least one receiving and connecting element (6.1) to which the connecting structure is detachably attached, and wherein the associated, complementary counter-receiving element (6.2) is arranged or integrally formed on the connecting structure.Furthermore, the invention comprises an associated peeling and coring device by means of which the cutting device can be operated.