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Treadmill

Treadmill description/claims

1. Field of the Invention

The present invention relates to an exercise apparatus improved feature and, more particularly, to a treadmill with adjustable assembly that a user can change the location of the adjustable assembly relative to the treadmill for reducing impact of the treadmill.

2. Description of Related Art

U.S. Pat. No. 4,350,336 discloses a shock-absorbing platform support means being movable fore and aft on the frame for adjustment purposes so as to act as a shock-absorbing fulcrum for the platform to protect the body of the exerciser from the shock usually associated with running or walking on a hard surface. Although this invention can change the position of the shock-absorbing fulcrum relative to the platform, due to its complication structure, the exerciser can not adjust the fulcrum easily so as to causing inconvenient during operation period.

U.S. Pat. No. 7,077,788 discloses a spring for providing flexibility of cushion function to the user while using the treadmill. It's better than the abovementioned prior art, but still takes lots of manufacture cost.

U.S. Pat. No. 5,976,061 discloses a treadmill having a deck spacing mechanism comprising an adjustable height bumper movable between a down position and an up position. This conventional treadmill uses a drive screw that is adapted for movement relative to the base for adjusting level of resistance to downward movement of the support deck relative to the base. Also, this conventional treadmill will cost much manufacturing cost due to the complicated structure of deck spacing mechanism comprising, and the user can not stably run on the deck during operation period due to the wheel structure of the deck spacer.

This invention relates to a treadmill comprising: a base having a front portion and a rear portion; a platform supported by the base; a front roller and a rear roller respectively coupled to the front portion and the rear portion of the base; an endless belt encompassed the platform and coupled to the front roller and the rear roller; and at least two adjustable assemblies movably disposed between the base and the platform to reduce impact of the platform, each of the adjustable assemblies respectively located under the right side and left side of the platform capable of moving back and forth relative to the platform, wherein each of the adjustable assemblies comprises a first supporting member rotatably mounted therein. Therefore, user can adjust the location of the adjustable assembly relative to the platform for reducing impact of the platform and varying flexibility of the platform to meet the user's demanding so as to prevent sports injury during operation period.

Furthermore, each of the adjustable assemblies further comprises a second supporting member and a third supporting member respectively rotatably mounted therein, wherein the three supporting members arrange in an order of nonlinear geometry figure such as triangle and each of the supporting members keeps a space with others. In addition, at least one of the supporting members contacted with one of the base and the platform is preferably composed of resilient material. Due to the arrangement of the supporting members, the adjustable assembly can stably located between the base and platform for reducing impact of the platform while the user runs on the platform.

In addition, each of adjustable assemblies comprises an adjustable portion, a connecting portion, three supporting members disposed between the connecting portion and the adjustable portion and at least one connecting assembly associated with the adjustable portion, the connecting portion and the three supporting members, wherein a user can hold the adjustable portion for pushing the adjustable cushion assembly to move back and forth relative to the platform. Therefore, due to the simple structure of the adjustable assembly, the user can easy to adjust the location of the adjustable assembly relative to the platform.

Other objects, advantages, and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

FIG. 1 shows a schematic view of a treadmill with adjustable assembly according to the present invention.

FIG. 2 shows part of structure of the treadmill of the FIG. 1.

FIG. 3 shows a schematic view of the adjustable assembly according to the present invention.

FIG. 4 shows an explosion view of the adjustable assembly according to the present invention.

• Provisional Patent
• Utility Patent

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