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Rowing machine including a gear shift mechanism

a gear shift mechanism and rowing machine technology, applied in the field of rowing machines utilizing gear shift mechanisms, can solve the problems of not providing an easy way for the rower, and the rower must work against this resistan

Pending Publication Date: 2022-11-17
LACIS JANIS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is a rowing machine that uses a chain and gear cassette / derailleur configuration for resistance. This design provides a smooth operation compared to other systems.

Problems solved by technology

One limitation of rowing machines is that they do not provide an easy way for the rower to adjust the resistance during practice.
Thus, while the rowing machine may adjust the resistance through a magnetic resistance mechanism, the rower must work against this resistance and cannot, as in bicycles, for example, shift the resistance mechanism to obtain a larger or smaller resistance during rowing.

Method used

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  • Rowing machine including a gear shift mechanism
  • Rowing machine including a gear shift mechanism
  • Rowing machine including a gear shift mechanism

Examples

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Embodiment Construction

[0015]FIGS. 1 and 2 are side and top views, respectively, of a first embodiment rowing machine 200, with a rower R in at the end of a stroke, FIG. 3 is a top view of a handle 237 and chain 233; FIG. 4 is a side view illustrating the chain and a resistance unit 250; and FIG. 5 is an exploded view 5-5 of showing one embodiment of a chain return mechanism 232.

[0016]As shown in FIGS. 1 and 2, rowing machine 200 includes a frame 210, a resistance unit 250, and power transmission components 230 connecting the frame and resistance unit. Frame 210 includes a first portion 211, a second portion 219 and a third portion 221. First portion 211 is generally horizontal. Second portion 219 is attached to first portion 211 and includes a first end 223 that extends to the ground and a second end 225 attached to an axle 253 of resistance unit 250 and includes legs 213 for supporting the rowing attachment on the ground and a foot support 215 including foot straps 216. Third portion 221 is attached to ...

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PUM

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Abstract

Rowing machines are described that permit a rower to adjust the rowing resistance using a gear shift mechanism. The rowing machine includes a handle connected to a chain, which passes, sequentially, over a derailleur and then to the gears of the gear cassette. The gear cassette is coupled to a resistance unit, which may be similar to resistance units used in off wheel bicycle trainers. This configuration of derailleur and gear cassette permit the rower to smoothly select a gear.

Description

BACKGROUND OF THE INVENTIONField of the Invention[0001]The present invention generally relates to exercise equipment, and more particularly to rowing machines utilizing gear changing mechanisms.Discussion of the Background[0002]Rowing machines are stationary exercise devices that simulate the motion and forces during rowing. Rowing machines generally include a frame having a movable seat and foot rests and a handle that is connected to a resistance unit. During the drive portion of the stroke, the handle pulls on the resistance unit, which provides resistance to the motion of the handle. During the recovery portion of the stoke, there is no resistance to the motion of the handles.[0003]In certain rowing machines, the handle is connected to the resistance unit through a chain or cord attached to the handle and a mechanism to take up slack of the chain or cord during the stroke. Resistance units for such rowing machines may include one or more of a flywheel, an air or water resistance...

Claims

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Application Information

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IPC IPC(8): A63B22/00A63B21/00A63B21/22A63B21/005A63B21/04
CPCA63B22/0076A63B21/151A63B21/225A63B21/0052A63B21/0428A63B21/4035A63B2022/0079A63B21/008A63B71/0622A63B2220/50A63B2220/17A63B2220/62A63B21/005A63B21/157
Inventor LACIS, JANIS
Owner LACIS JANIS