Bifold Door Pivot Guide Installation Tool
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Solution Overview
Problem
The installation of pivot guides in bifold doors is challenging due to burrs and size mismatches between the pivot guide base and the bore, often resulting in damage to the pivot guide when force is applied manually or with a hammer.
Innovation Solution
An apparatus with a C- or U-shaped profile is used to align and securely position the pivot guide, allowing for controlled force application through the apparatus rather than directly on the pivot guide, thereby reducing the risk of damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the pivot guide base is pushed into the bore by hand, then installation is simple, but the base cannot be installed due to burrs and size mismatch
Solution Approach 1:
The patent introduces a hollow cylindrical installation tool as an intermediary between the installer and the pivot guide base. This tool fits over the base and transmits installing forces while protecting the base from damage. The tool's inner diameter is sized to accommodate the base, and it provides a protected pathway through the bore, enabling installation without direct contact between the installer and the fragile base.
2Reliability
If a hammer is used to strike the pivot guide, then the base can be driven into the bore, but the pivot guide breaks
Solution Approach 1:
The hollow cylindrical installation tool serves as a protective cushion between the hammer blows and the pivot guide base. The tool absorbs and distributes the impacting forces, preventing concentrated stresses that would cause the base to break. By placing this protective intermediary in advance, the base is shielded from direct impact damage while still allowing force transmission for installation.
Solution Approach 2:
The installation tool acts as a mediator that translates hammer impacts into controlled installing forces. Rather than direct hammer-to-base contact, the force transmission path goes through the tool, which protects the base from damaging stress concentrations while still achieving the necessary installation force.
3Strength
If the bore size is made smaller to ensure a tight fit, then the pivot guide fits securely, but manual installation becomes even more difficult
Solution Approach 1:
The installation tool serves as a mediator that enables installation into tight-fitting bores without increasing base damage risk. The tool's protective structure allows the installer to apply force safely, and its dimensions are designed to work with the tight bore fit while protecting the base throughout the installation process.
Data Source
AI summary
An apparatus and method for installing a pivot guide in a door section of a bifold door, the pivot guide including a base, a flange at an upper region of the base, a pin extending into the base, and a top part connected to the pin wherein the apparatus includes: an upper part; a lower part; and a middle part connecting the upper part to the lower part; the lower part has a notch, and during the installing of the pivot guide into the door section, the notch is positioned between the flange and the top part of the pivot guide, and after a force is applied onto the upper part, the force is transferred from the upper part to the lower part through the middle part and onto the flange to push the base into the opening in the door section.