Modular Bolt Anchor Setting Tool for Multiple Anchor Sizes

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Solution Overview

Problem

Existing bolt anchor setting tools require a different tool for each bolt diameter, leading to excessive material expenditure and inconvenience.

Innovation Solution

A setting tool with a modular design featuring a first base body with a holding device and a clamping mechanism, and a second base body with an SDS adapter, where the first base body can be easily exchanged for different bolt sizes by adjusting a spring-loaded stop element, allowing the same tool to accommodate various bolt diameters.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a different tool is used for each bolt diameter, then the setting tool can accommodate various bolt sizes, but the material expenditure and device complexity increase significantly

Engineering Contradiction:

Improvebolt size accommodationVSAvoidtool variety

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The setting tool is designed with a universal base body that can accommodate multiple bolt diameters through interchangeable adapters. The base body includes a standardized holding device and clamping mechanism that work with various bolt sizes, eliminating the need for completely different tools for each bolt type.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The setting tool is divided into modular components: a permanent base body and interchangeable adapters specific to each bolt diameter. This segmentation allows the common functional elements to be reused while only replacing the size-specific components, reducing overall device complexity and material expenditure.

Inventive Principle:

Principle #1Segmentation

2Adaptability or versatility

If a different tool is used for each bolt diameter, then the setting tool can accommodate various bolt sizes, but the material expenditure increases

Engineering Contradiction:

Improvebolt size accommodationVSAvoidmaterial expenditure

Core Design Contradiction:

Adaptability or versatilityVSLoss of substance

Solution Approach 1:

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

Instead of discarding the entire tool when changing bolt sizes, only the specific adapter component is replaced. The base body and its functional components are recovered and reused for subsequent bolt anchoring operations, significantly reducing material waste.

Inventive Principle:

Principle #34Discarding and recovering

3Reliability

If the holding device extends over the entire length of the base body, then the bolt anchor is securely held, but the device complexity and material expenditure increase

Engineering Contradiction:

Improvebolt anchor holding securityVSAvoidholding device extent

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The holding device extends only for a portion of the base body length, specifically positioned to engage the bolt anchor at the critical anchoring point. This partial extension provides sufficient holding security without the unnecessary complexity and material expenditure of a full-length holding device.

Inventive Principle:

Principle #16Partial or excessive action

Solution Approach 2:

The holding device is concentrated in the specific region where bolt anchor engagement is required, rather than extending uniformly throughout the base body. This localized approach maintains reliable holding security while minimizing device complexity and material usage.

Inventive Principle:

Principle #3Local quality

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 the setting of multiple bolt anchor sizes with minimal additional material expenditure, facilitating convenient tool adaptation and efficient bolt anchor expansion in subsoil.

Implementation Method 1

The hammer drill transmits impact energy to the ram, which drives the bolt anchor into the ground

Methodology Applied

Scientific EffectImpact energy transmission: Impact Force

Implementation Method 2

The bolt anchor to be set is held in place by spring tension via a nut in the receptacle of the sleeve

Methodology Applied

Scientific EffectSpring tension: Spring

Data Source

PatentEP3755503B1Setting tool and setting method for bolt anchors

Publication Date: 2022.08.03 FISCHERWERKE ARTUR FISCHER GMBH & CO KG

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AI summary

The invention relates to a setting tool (1) for setting a bolt anchor (2) in a solid substrate (10). The setting tool (1) comprises a first main body (3) for receiving the bolt anchor (2) and a second main body (9), which is separable from the first main body (3), for absorbing impact and rotational energy of a hammer drill. As a result of the first main body (3) being separable from the second main body (9), only the second main body (9) has to be exchanged in each case for different bolt anchor sizes.