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Weight plates stacking system for fitness training equipment

a stacking system and weight plate technology, applied in the direction of weights, gyms, sport apparatus, etc., can solve the problem of requiring costlier production to achieve such precision, and achieve the effect of avoiding the problem of accumulated thickness errors

Inactive Publication Date: 2007-01-04
CAO GUOFANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0008] Present invention provides a link-connector mechanism, instead of a central stem, to work as the weight selection system and completely avoid the issue of accumulated thickness errors that plagued the industry.

Problems solved by technology

Due to the accumulated thickness error of the weight plates, however, the top one or two holes on the weight plates oftentimes do not match up with the top one or two holes on the central stem.
This poses a problem for users when insertion of the insertion pin is taking place at the top portion of the weight stack, unless the weight plates are machined to a very tight tolerance, which requires costlier production to achieve such precision.

Method used

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  • Weight plates stacking system for fitness training equipment
  • Weight plates stacking system for fitness training equipment
  • Weight plates stacking system for fitness training equipment

Examples

Experimental program
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Embodiment Construction

[0027] In FIGS. 1 and 2, the problem with current industry fitness equipment is seen clearly. Insertion pin at the top of the weight stack may be difficult due to the accumulated thickness errors of the weight stacks.

[0028] The central stem is oftentimes made offset, as to cause trouble when the cable tension is released, the bottom tip of the central stem cannot successfully come down through the center holes of all the remaining weight plates.

[0029] Present invention uses link-connectors, each fitting to one weight plate having center portion machined out to contain one link-connector.

[0030]FIGS. 3-7 show the construction of link-connectors and how they are used on weight plate machined to fit said link-connectors.

[0031] As shown in FIG. 10, there is only a small length of tip from a link-connector, when the cable is lifted. The selected portion of weight plates can come easily back to stack on top of unselected weight plates.

[0032]FIGS. 8 and 9 show the link-connector can be...

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Abstract

Weight stack selection system for fitness equipment. Central stem having offset lateral movement is eliminated by present invention. The select pin is easier for insertion to the selected desired weight due to the lack of accumulated thickness the plagued the industry. And an intuitive Auto-Off selection box is also added to make the equipment more user-friendly, allowing user to simply pushed in the desired weight for training.

Description

FIELD AND BACKGROUND OF THE INVENTION [0001] The present invention relates generally to an improved design and construction of fitness training equipment wherein users can select the desired amount of weight from a stack of weight plates. [0002] Selectable amount of weight is commonly found on many fitness training equipment. A popular method is by using a central stem going down the center holes of a stack of weight plates, wherein an insertion pin can be inserted through a hole on the side of each weight plate and through the central stem, forming the point of pick-up when users are engaging in exercising, as shown in FIG. 1. All the weight plates above the point of insertion pin will be the desired total weight. When users pull the cable, all the plates below the point of insertion pin will NOT be selected. [0003] This type of popular weight selection system, as depicted in FIG. 1 has at least three problems plaguing the industry: [0004] a. The hole on the side of each weight pla...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A63B21/06
CPCA63B2021/0623A63B21/062A63B21/0628A63B21/063
Inventor CAO, GUOFANG
Owner CAO GUOFANG
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