Shower Door Frame Screwless Locking Assembly for Rapid Installation

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Solution Overview

Problem

The existing methods for assembling shower door frames are time-consuming and prone to errors due to screw slippage or breakage, leading to inefficiencies in manpower and material resource usage.

Innovation Solution

A shower door frame design featuring a horizontal track with a positioning block and locking assembly that allows for screwless assembly by using a tensioning part with a locking groove and retaining block, which secures the side frame to the track without the need for screws, facilitating rapid and easy installation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If screws are used to assemble the shower door frame, then the connection between track and side frame can be achieved, but the assembly process becomes time-consuming and prone to screw slippage or fracture

Engineering Contradiction:
Improveconnection reliabilityVSAvoidassembly efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent removes screws from the assembly process entirely, extracting the problematic fastening element and replacing it with a screwless connection mechanism. The positioning block with locking groove and retaining block creates a direct mechanical interlock between the track and side frame, eliminating the need for separate fasteners and thereby improving both assembly efficiency and connection reliability.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The positioning block serves as an intermediary component that mediates the connection between the track and side frame. It features a locking groove that receives the retaining block, creating a positive mechanical interlock. This intermediary structure provides reliable connection without requiring screws, resolving the contradiction between connection reliability and assembly efficiency.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Stability of the object's composition

If multiple holes are drilled and threaded holes are arranged for screw assembly, then the track can be fixed to the side frame, but the installation process becomes complex and time-consuming

Engineering Contradiction:
Improveframe stabilityVSAvoidassembly complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The patent extracts the complex hole-drilling and threading operations from the assembly process. Instead of requiring multiple holes to be drilled and threaded in the track and side frame, the design uses a positioning block that embeds into the side frame and locks with the retaining block, dramatically simplifying the assembly process while maintaining frame stability.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The positioning block and locking groove mechanism is designed to be self-aligning and self-securing. The positioning block embeds into the side frame and the locking groove automatically engages with the retaining block when the track is positioned correctly, eliminating the need for complex alignment procedures and multiple fastening operations.

Inventive Principle:
Principle #25Self-service

3Strength

If screws are used for assembly, then the track can be secured to the side frame, but screw slippage or fracture occurs leading to wastage of manpower and material resources

Engineering Contradiction:
Improveconnection strengthVSAvoidmaterial wastage
Core Design Contradiction:
StrengthVSLoss of substance

Solution Approach 1:

The patent removes screws from the connection system, eliminating the source of slippage and fracture problems. The positioning block with locking groove and retaining block creates a positive mechanical interlock that distributes loads across a larger area and eliminates stress concentration points that cause screw failure, thereby reducing material wastage while maintaining connection strength.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The locking groove and retaining block design incorporates built-in load distribution and stress relief features. The groove geometry and block configuration are designed to cushion and distribute connection forces, preventing the sudden failure modes associated with screw slippage and fracture before they can occur.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

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 solution enables quick and simple assembly of shower door frames with reduced physical demands on installers, ensuring stable and secure installation without the risk of screw-related issues, thus improving efficiency and reducing installation time.

Implementation Method 1

a locking assembly is arranged on the side frame, the locking assembly comprises a base fixed on the side frame and a tensioning part hinged with the base, the tensioning part is provided with a locking groove, and the locking groove is buckled with the retaining block

Methodology Applied
Scientific EffectMechanical Fastening: Mechanical Fastener

Data Source

PatentUS10709299B2Shower door frame and shower door
Publication Date: 2020.07.14 IDEAL SANITARY WARE CO LTD
  • US10709299B2 patent drawing
  • US10709299B2 patent drawing
  • US10709299B2 patent drawing

AI summary

A shower door frame is disclosed comprising a track and a side frame; wherein a fixing part is fixed at a tail end of the track, a positioning block is arranged on an outer side of the fixing part, and a retaining block is arranged at a top end of the positioning block; the positioning block is embedded into the side frame; a locking assembly is arranged on the side frame, the locking assembly comprises a base fixed on the side frame and a tensioning part hinged with the base, the tensioning part is provided with a locking groove, and the locking groove is buckled with the retaining block. The present invention also provides a shower door comprising the shower door frame. The shower door frame and the shower door are simple in assembly operation, and suitable for a field assembly occasion.