Rotating Jewelry Closure With Notched Stem Locking

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing jewelry closures, particularly for earrings, bracelets, and necklaces, face challenges such as difficulty in manipulation due to small parts, poor security leading to loss, and complexity resulting in worn-out components.

Innovation Solution

A rotating closure system with a stem and rotatable connection element featuring parallel catches and a locking mechanism that allows easy opening and closing, ensuring secure attachment without small parts to manipulate, using a notch and rotatable collar for locking and unlocking.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional push-back closures are used, then the closure can be placed on the stem, but it is hard to fit the closure onto the stem and the independent push-backs are often lost or misplaced

Engineering Contradiction:
Improveease of fitting closureVSAvoidsecurity of closure
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent merges the closure element with the stem by providing a recess in the stem that receives and retains the closure. The closure is no longer an independent push-back but is integrated into the stem structure through the recess, eliminating the problem of lost push-backs and making the closure harder to misplace while maintaining ease of operation.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The recess acts as an intermediary structure between the stem and the closure. It provides a designated space that guides and secures the closure in place, making it easier to fit the closure onto the stem while preventing it from being lost or misplaced.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If kidney closing or fishhook closing is used, then the closure can be opened and closed, but the pendant or earring can slide out or fall out when left open

Engineering Contradiction:
Improveease of opening and closingVSAvoidsecurity when open
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The recess is designed to preliminarily prevent the closure from sliding out or falling out when the jewelry is left open. The geometry of the recess creates a mechanical constraint that counteracts the tendency of the closure to slip off, providing security without requiring the closure to be constantly monitored or manipulated.

Inventive Principle:
Principle #9Preliminary anti-action

3Shape

If endless closure is used, then the closure provides a streamlined appearance, but it is hard to fit the post into the small opening on the other side of the hoop

Engineering Contradiction:
Improvestreamlined appearanceVSAvoidease of fitting post
Core Design Contradiction:
ShapeVSEase of operation

Solution Approach 1:

The closure system is segmented into distinct components: the stem with its recess and the separate closure element. This segmentation allows the closure to be manipulated independently and inserted into the recess from a convenient direction, avoiding the need to fit a post through a small opening in a hoop while maintaining the streamlined appearance when closed.

Inventive Principle:
Principle #1Segmentation

4Volume of moving object

If small parts are used in closures, then the closure can be compact, but people with arthritis or poor vision have great difficulty in manipulating the small parts

Engineering Contradiction:
Improvesize of closureVSAvoidease of manipulation
Core Design Contradiction:
Volume of moving objectVSEase of operation

Solution Approach 1:

The recess serves multiple functions: it retains the closure, guides its insertion, and provides a large enough opening for easy manipulation. By making the recess an integral part of the stem rather than using small separate components, the design accommodates users with arthritis or poor vision while maintaining a compact overall size.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS20250375003A1Rotating jewelry closure
Publication Date: 2025.12.11 EMPIRE CASTING HOUSE INC
  • US20250375003A1 patent drawing
  • US20250375003A1 patent drawing
  • US20250375003A1 patent drawing

AI summary

A jewelry item is provided having a first side, having a first and second end, the first end having a stem and locking notch. A second side includes a third and fourth end, the second end of the first side is connected to the fourth end of the second side. A rotating closure has a collar, rotatably connected to a rotatable connection element. The collar is connected to the third end of the second side and located between the third end and the rotatable connection element. The first end of the first side is configured to be movable towards the third end of the second side, such that in an unlocked configuration, the stem with the locking notch is configured to be inserted into the first side within a locking cavity of the rotatable connection element. In a locking configuration, the rotatable connection element is configured to rotate to engage the locking notch of the stem, preventing removal of the stem from the rotatable connection element.