Structure of a treadmill
First Claim
1. An improved frame structure of a collapsible treadmill, comprising:
- a front frame assembly, having a first end portion and a second end portion opposing to the first end portion;
a rear frame assembly, having a first end portion and a second end portion opposing to the first end portion, in which the first end portion pivots on the second end portion of the front frame assembly;
lifting mechanism, substantially disposed under the front frame assembly, in which the lifting mechanism includes a front leg assembly, a rear leg assembly and a lifting device, wherein the front leg assembly has a first end portion and a second end portion, and the rear leg assembly also has a first end portion and a second end portion, of which the first end portion of the front leg assembly pivots on the second end portion of the front frame assembly, and the first end portion of the rear leg assembly pivots on the first end portion of the front frame assembly;
wherein the front leg assembly and rear leg assembly slidably pivot with each other, and wherein the lifting device pivots on the front frame assembly at an end thereof and pivots on one of the front leg assembly and the rear leg assembly at the other end thereof.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention relates to an improved structure of a treadmill, more particularly, to a frame structure of an electrical, collapsible treadmill. The frame structure includes a front frame assembly, a rear frame assembly and elevation mechanism disposed under the front frame assembly. The elevation mechanism includes a front leg assembly, a rear leg assembly and an elevation device, of which the front leg assembly and rear leg assembly are pivotally and slidably connected to each other, such that the elevation mechanism is able to support the front and rear frame assembly by means of scissors type supporting structures without the need of a base. When in use, the treadmill can be kept stable without the need of any extra fastening means; whereas when being stored, the treadmill can be folded by only flipping over the rear frame assembly upward. This design makes the convenience in storage and reduces the costs in assembling and manufacturing.
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Citations
16 Claims
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1. An improved frame structure of a collapsible treadmill, comprising:
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a front frame assembly, having a first end portion and a second end portion opposing to the first end portion;
a rear frame assembly, having a first end portion and a second end portion opposing to the first end portion, in which the first end portion pivots on the second end portion of the front frame assembly;
lifting mechanism, substantially disposed under the front frame assembly, in which the lifting mechanism includes a front leg assembly, a rear leg assembly and a lifting device, wherein the front leg assembly has a first end portion and a second end portion, and the rear leg assembly also has a first end portion and a second end portion, of which the first end portion of the front leg assembly pivots on the second end portion of the front frame assembly, and the first end portion of the rear leg assembly pivots on the first end portion of the front frame assembly;
wherein the front leg assembly and rear leg assembly slidably pivot with each other, and wherein the lifting device pivots on the front frame assembly at an end thereof and pivots on one of the front leg assembly and the rear leg assembly at the other end thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An improved frame structure of a collapsible treadmill, comprising:
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a front frame assembly, having a first end portion and a second end portion opposing to the first end portion;
a rear frame assembly, having a first end portion and a second end portion opposing to the first end portion, in which the first end portion pivots on the second end portion of the front frame assembly;
lifting mechanism, substantially disposed under the front frame assembly, in which the lifting mechanism includes a front leg assembly, a rear leg assembly and a lifting device, wherein the front leg assembly has a first end portion and a second end portion, and the rear leg assembly also has a first end portion and a second end portion, of which the first end portion of the front leg assembly pivots on the second end portion of the front frame assembly, and the first end portion of the rear leg assembly slidably pivots on the first end portion of the front frame assembly;
wherein the front leg assembly and rear leg assembly pivot with each other, and wherein the lifting device pivots on the front frame assembly at an end thereof and pivots on one of the front leg assembly and the rear leg assembly at the other end thereof. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification