Tool Holding System for Single-Handed Anchor Installation
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Solution Overview
Problem
Existing tools for inserting and securing fastening systems, such as dowels and anchors, are cumbersome and require manual effort, lacking secure coupling and efficient single-handed operation, especially in ceiling installations.
Innovation Solution
A tool with a holding system featuring adjustable clamping parts, including spring elements and a decoupling mechanism, allows for secure clamping and torque transmission without transmitting impact forces, enabling single-handed operation and efficient fastening system installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional tool with fixed clamping mechanism is used, then the structure is simple, but the tool cannot securely clamp fastening systems of different sizes and requires two-handed operation
Solution Approach 1:
The tool employs a dynamic clamping mechanism with spring-loaded jaws that can automatically adjust and secure fastening systems of different diameters. The spring force provides continuous pressure to maintain secure clamping, enabling the tool to be operated with one hand while maintaining firm grip on various anchor sizes.
Solution Approach 2:
The clamping mechanism allows for parameter adjustment in terms of clamping force and jaw position to accommodate different fastening system diameters. The spring constant and pre-load can be modified to optimize clamping for different anchor sizes, providing versatility without requiring multiple tools.
2Productivity
If impact forces are transmitted to the bushing during dowel insertion, then the insertion force is effective, but the bushing and retaining system are damaged
Solution Approach 1:
The tool separates the impact transmission path from the bushing retention function. The ram or rod transmits impact forces for dowel insertion, while the bushing and retaining system are isolated from these forces through a decoupling mechanism, allowing each component to perform its specific function without interference or damage.
Solution Approach 2:
A decoupling mechanism acts as an intermediary between the impact transmission system and the bushing retention system. This intermediary allows impact forces to be applied for dowel insertion while preventing these forces from being transmitted to the bushing, thereby protecting the retention system from damage.
3Ease of operation
If the sleeve is fixed axially without adjustment capability, then the structure is simple, but the ram cannot be pulled back to create space for guiding the bolt
Solution Approach 1:
The sleeve is designed with axial adjustability, allowing it to move dynamically during the fastening process. The sleeve can be pulled back axially to create sufficient space for guiding the bolt into position, then moved forward to secure the fastening system, providing the necessary operational flexibility.
4Reliability
If the jaws are pressed into the holder with acute-angled ramp surfaces, then the fastener head is firmly clamped, but the structure becomes complex with multiple moving parts
Solution Approach 1:
The clamping mechanism uses curved or rounded surfaces instead of acute-angled ramps. The jaws feature curved clamping surfaces that provide firm grip on the fastener head through distributed contact pressure, eliminating the need for complex ramp-based mechanical advantage while maintaining reliable clamping.
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
The tool facilitates secure and efficient insertion and fastening of dowels and anchors in ceilings, reducing installation time and effort, and allowing for single-person operation, thereby lowering costs and improving safety.
Implementation Method 1
The plunger (9) is arranged adjustably in a guide part (5) with a bore against the action of a spring (7)
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention relates to a tool (1) having a feed motion and/or torque transmitting device having a mounting element (3) for receiving an anchor, threaded bolt, shear connector, or threaded bolt with anchor, said tool being secured in a sleeve (10) by means of the mounting element (3). The feed motion and/or torque transmitting device has a ram (9) that can be adjusted in the axial direction opposite the mounting element (3), and can be brought into contact abruptly against the anchor, threaded bolt, or shear connector.