Exercise Machine Having Safety Feature On The Weight Selection Pin

Inactive Publication Date: 2007-10-18
CAO GUOFANG
View PDF9 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This instant change from loaded state to relaxed state will result in the free-fall of the selected weight plates, dropping down to the bottom of the stack, likely causing injuries to users or people nearby, especially if the selection pin is pulled out accidentally, or for unknown reasons.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Exercise Machine Having Safety Feature On The Weight Selection Pin
  • Exercise Machine Having Safety Feature On The Weight Selection Pin
  • Exercise Machine Having Safety Feature On The Weight Selection Pin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] In FIGS. 1 and 2, the problem with accidental pullout of the selection pin can happen, as there is little friction to stop the lateral / horizontal travel of the selection pin, even when the fitness equipment is in loaded state.

[0018] In FIG. 3, the central portion of the selection pin is machined down a little bit, resulting in the length L of the pin to have reduced diameter and the length of the reduced portion slightly longer than the diameter D of the central stem, so that the selection pin cannot be pulled out during loaded state, due to a shoulder 11 formed on the edge of the cut will be tightly wedged against the central stem.

[0019]FIG. 4 and FIG. 5 shows the safety selection pin of present invention used in a weight stack system in, respectively, the relaxed state and loaded stated. Specifically, in FIG. 5, when the desired weight is pulled up, the central stem is engaged into the L segment of the pin, thus preventing from the pin being pulled out laterally / horizonta...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Safety selection pin for weight stack selection system wherein the mid portion of the selection pin is machined down in diameter, forming a shoulder on the edge of the cut out portion. The length of the cut is slightly longer than the diameter of the central stem, or longer than the engaging portion of a link-connector in a “stemless” system, preventing the selection pin from being pulled out during the loaded state of a weight stack exercise machine, thus helping to avoid accidental injuries to users and nearby people.

Description

FIELD AND BACKGROUND OF THE INVENTION [0001] The present invention relates generally to an improved design and construction of fitness training equipment wherein the selection pin has a safety feature to prevent said selection pin from being accidentally pulled out during loaded state, thus avoiding injuries to the users and potential nearby people. [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 a selection 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 exercise or training, as shown in FIG. 1. All the weight plates above the point of inserted selection pin will be the desired total weight (including the plated having the inserted pin). When users pull the cable, the training equipment is then in a loaded state, all the plates be...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): A63B21/06A63B21/062
CPCA63B21/062A63B2021/0623A63B71/0054A63B21/0628A63B21/063
InventorCAO, GUOFANG
OwnerCAO GUOFANG