Sliding Stud Attachment With Rollers for Modular Fitness Racks

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Solution Overview

Problem

Existing fitness equipment attachments for squat racks are limited in compatibility, requiring users to frequently switch between attachments, which is cumbersome, time-consuming, and inefficient, and they occupy excessive space without considering personalized needs or integration with smart devices.

Innovation Solution

A sliding member for a fitness equipment stud featuring rollers, connecting plates, and detachable pins that allow for easy attachment and adjustment of external engaging attachments, providing a modular and flexible system that supports various training types and smart device integration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple separate attachments are used for different training types, then training functionality is improved, but device complexity and space occupation increase

Engineering Contradiction:
Improvetraining functionalityVSAvoidnumber of attachments
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The squat rack is designed with a universal attachment system featuring standardized studs, roller connecting plates, and detachable pins that can accommodate multiple types of training attachments (pull-up bars, dip bars, landmine attachments, etc.). This allows a single rack structure to perform multiple functions by simply changing attachments, eliminating the need for separate dedicated equipment for each training type.

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

Solution Approach 2:

The attachment system is segmented into modular components: the squat rack frame with studs, detachable sliding members with rollers, and interchangeable attachments (pull-up bars, dip bars, landmine attachments). Each component can be independently selected, assembled, and disassembled, allowing users to configure different training setups by combining basic rack elements with various functional attachments.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If multiple separate attachments are used for different training types, then training functionality is improved, but installation time and operational convenience deteriorate

Engineering Contradiction:
Improvetraining functionalityVSAvoidinstallation time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The attachment system employs dynamic, movable connections through sliding members that can be quickly positioned along the rack studs and locked in place using detachable pins. The rollers enable smooth movement and adjustment, while the pin-based locking mechanism allows rapid securing and release of attachments, dramatically reducing installation and reconfiguration time compared to fixed or welded attachment methods.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The sliding member acts as an intermediary component between the fixed rack studs and the various training attachments. It provides a standardized interface with detachable pins that can engage with corresponding features on different attachment types, enabling quick connection and disconnection without requiring complex assembly procedures or specialized tools.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Stability of the object's composition

If traditional fixed attachments are used, then structural stability is improved, but adaptability and ease of operation deteriorate

Engineering Contradiction:
Improvestructural stabilityVSAvoidattachment compatibility
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The rack structure includes pre-installed studs at various heights and positions, and the sliding members are pre-configured with rollers and detachable pins. This preliminary preparation allows attachments to be quickly connected to stable, predetermined locations on the rack without requiring structural modifications or complex mounting procedures, thereby maintaining structural stability while enabling adaptability.

Inventive Principle:
Principle #10Preliminary action

4Adaptability or versatility

If multiple attachments are stored for different training types, then training options are improved, but space occupation increases

Engineering Contradiction:
Improvetraining optionsVSAvoidspace occupation
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

By implementing a universal attachment system with standardized studs and sliding members, the rack can accommodate multiple types of training attachments (pull-up bars, dip bars, landmine attachments, cable attachments, etc.) using the same basic mounting infrastructure. This eliminates the need for separate dedicated racks or mounting structures for each training type, significantly reducing the total space required while maintaining diverse training options.

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

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

Enhances user experience by simplifying attachment installation and adjustment, improving stability, reducing space usage, and enabling versatile training options while supporting personalized and efficient use of fitness equipment.

Implementation Method 1

each roller being able to roll or slide on an outer surface of the stud

Methodology Applied
Scientific EffectRolling: Roller

Implementation Method 2

each roller being able to roll or slide on an outer surface of the stud

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS20260048290A1Sliding system and sliding member for fitness equipment stud
Publication Date: 2026.02.19 SONG YONGLIANG
  • US20260048290A1 patent drawing
  • US20260048290A1 patent drawing
  • US20260048290A1 patent drawing

AI summary

A sliding member for a fitness equipment stud includes: a plurality of rollers with gaps formed therebetween and arranged in parallel and opposite to each other; two roller connecting plates being respectively connected to two ends of each roller; and at least one pin detachably mounted on the roller connecting plates. Therefore, an external engaging attachment can be engaged with the at least one pin to form a structure that is either rotatable or fixed.