Formwork Holding Device with Adjustable Guide Support

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Solution Overview

Problem

Existing formwork holding systems for construction elements, particularly walls with integrated formwork, require multiple operators, are labor-intensive, and can damage the construction element due to drilling and dowel usage, and are not suitable for forming angled ends or reusing components.

Innovation Solution

A formwork holding device with a guide support and movable element featuring a steerable pad and adjustable length, secured by a single fixing point, allowing for easy setup and alignment, and capable of withstanding concrete thrust forces, while minimizing site labor and preserving the construction element's integrity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If dowels are used to fix the formwork stop board to the wall with integrated formwork, then the formwork stop can be securely attached, but the construction element is damaged and labor time increases due to drilling and dowel removal

Engineering Contradiction:

Improveattachment strengthVSAvoiddamage to construction element

Core Design Contradiction:

StrengthVSObject-affected harmful factors

Solution Approach 1:

The invention extracts the harmful drilling and dowel insertion operations from the formwork attachment process. Instead of using dowels that require drilling holes into the construction element, the invention uses a formwork stop board with integrated anchoring elements that attach to the surface without penetrating or damaging the construction element structure.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The invention introduces an intermediary attachment mechanism between the formwork stop board and the construction element. This intermediary system uses surface-mounted anchoring elements rather than direct drilling into the construction element, thereby mediating the connection in a way that avoids damage while maintaining secure attachment.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of operation

If multiple operators are used to hold and drill the formwork stop board, then the formwork can be properly installed, but labor time and complexity increase

Engineering Contradiction:

Improveformwork installationVSAvoidlabor time

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The formwork stop board is designed to be self-supporting and self-attachable. The board incorporates integrated anchoring elements that allow a single operator to attach it to the construction element without requiring assistance for holding, drilling, or securing operations.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The invention segments the formwork stop board into modular components with pre-integrated anchoring elements. This segmentation allows the board to be handled and installed as a complete unit rather than requiring multiple operators to coordinate drilling and attachment operations.

Inventive Principle:

Principle #1Segmentation

3Ease of manufacture

If the formwork stop board is fixed during manufacturing with embedded anchoring means, then the formwork can be attached, but safety risks and rust spots occur during pouring and stripping

Engineering Contradiction:

Improveformwork integrationVSAvoidoperator safety

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The formwork stop board is prepared in advance with integrated anchoring elements during manufacturing, but these elements are designed to be concealed or protected during the pouring operation. The board is positioned and secured before concrete pouring, eliminating the need for visible anchoring means that could pose safety risks during subsequent operations.

Inventive Principle:

Principle #10Preliminary action

4Strength

If clamps are used to hold the formwork stop board through pre-drilled holes, then the formwork can be secured, but alignment precision and stripping complexity increase

Engineering Contradiction:

Improveformwork securingVSAvoidalignment precision

Core Design Contradiction:

StrengthVSManufacturing precision

Solution Approach 1:

Instead of drilling holes through the formwork stop board and using clamps that require precise alignment with internal reinforcements, the invention inverts the approach by having the anchoring elements attach to the surface of the construction element without requiring penetration or precise alignment with internal structures.

Inventive Principle:

Principle #13The other way round (Inversion)

Data Source

PatentEP3124719B1Formwork retaining device for building element, building element having such device and shuttering method using said device

Publication Date: 2018.03.21 TORNATORE PINO

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AI summary

The invention relates to a formwork retention device (1) for holding a formwork panel (3) arranged to close a recess (21) provided in a construction element (2), said recess (21) being located between two opposite faces (201) of said construction element (2). It comprises a guide support (10) provided to be fixed to one of said faces (201) by fastening means (14), a movable element (11) coupled to said guide support (10) and comprising a support stop (13, 112) transverse to said guide support (10), said guide support (10) and said movable element (11) being arranged to allow rectilinear translation of said movable element (11) along the guide support (10) to vary the length (L, L1, L2) between at least one passive position and one active position by means of adjustment (12).