Cable Protection Pipe Assembly With Identical Locking Halves

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Solution Overview

Problem

Existing cable protection pipes are difficult to assemble due to the need for precise alignment and locking of two different halves, which can get stuck with dirt, and are costly to produce as they require two separate molds.

Innovation Solution

A cable protection pipe system comprising two identical pipe halves with locking latches that engage together, allowing for easier assembly and production using a single mold, with male and female connectors and protrusions for secure attachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If two different pipe halves are used with hinge and sliding locking elements, then the cable protection pipe can be assembled and disassembled, but the assembly becomes difficult and time-consuming requiring precise alignment and bending down to ground level

Engineering Contradiction:
ImproveEase of assemblyVSAvoidComplexity of assembly mechanism
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The pipe is divided into two identical halves that can be easily connected and disconnected. Each half is a separate component that can be independently handled and positioned, simplifying the assembly process compared to traditional single-piece designs with complex locking mechanisms.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The locking mechanism uses asymmetric male and female connectors with teeth and cavities that naturally guide alignment during assembly. The asymmetric design ensures proper orientation without requiring precise manual alignment, eliminating the need for installers to bend down and manually position components.

Inventive Principle:
Principle #4Asymmetry

2Reliability

If sliding locking elements are used to connect pipe halves, then the halves can be locked together, but the locking elements tend to get stuck due to dirt accumulation

Engineering Contradiction:
ImproveReliability of locking mechanismVSAvoidEffect of dirt on locking elements
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The locking function is extracted from the sliding mechanism and implemented through interlocking male and female connectors with teeth. This separate locking mechanism is less susceptible to dirt accumulation compared to sliding elements, as the interlocking teeth provide discrete engagement points that are harder for contaminants to interfere with.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

Instead of using sliding elements that move along a surface and can get stuck, the invention uses protrusions and cavities that engage through insertion. The locking action occurs in reverse - rather than sliding into place and risking sticking, the connectors engage through a push-in motion where the teeth snap into the cavities, providing reliable locking without the sticking problem.

Inventive Principle:
Principle #13The other way round (Inversion)

3Ease of manufacture

If two different pipe halves are manufactured, then the pipe can be assembled with locking mechanisms, but production costs increase due to requiring two different molds

Engineering Contradiction:
ImproveManufacturing costVSAvoidNumber of mold types required
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

Both pipe halves are made identical in shape and size, allowing a single mold to produce both components. This homogeneous design eliminates the need for maintaining two different molds, reducing manufacturing costs and simplifying production logistics while still enabling effective locking through the male-female connector design.

Inventive Principle:
Principle #33Homogeneity

Solution Approach 2:

The identical pipe halves serve multiple functions: they provide the structural pipe body and also incorporate the locking mechanisms. The male and female connectors are integrated into the pipe halves themselves, eliminating the need for separate locking components and reducing the overall number of parts that need to be manufactured and managed.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP4456347A1Kit for forming pipe and cable protection pipe
Publication Date: 2024.10.30 UPONOR INFRA OY
  • EP4456347A1 patent drawingFigure 1
  • EP4456347A1 patent drawingFigure 2~3
  • EP4456347A1 patent drawingFigure 4~6

AI summary

According to an example aspect of the present invention, there is provided a kit (100) for forming a pipe, such as a cable protection pipe (200), which pipe is elongated along an axis (X), which kit (100) comprises two identical pipe halves (110, 120) configured to extend in a dimension of the axis (X), and one or more than one locking latch(es) (130), which is/are configured to engage the pipe halves (110, 120) together.