Exercise devices – User manipulated force resisting apparatus – component... – Utilizing weight resistance
Reexamination Certificate
2001-02-26
2003-06-10
Lucchesi, Nicholas D. (Department: 3764)
Exercise devices
User manipulated force resisting apparatus, component...
Utilizing weight resistance
C482S099000
Reexamination Certificate
active
06575882
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates generally to an exercise device, and more particularly to a load mechanism of the exercise device.
BACKGROUND OF THE INVENTION
As shown in
FIG. 1
, a prior art exercise device
10
comprises two guide rods
12
which are received in the through holes of a carrying board
14
. The carrying board
14
is provided with an inclined top and is provided in the middle with a pull cord. A plurality of weights
16
are disposed on the carrying board. The weights
16
have two insertion slot
17
for receiving the guide rods. The insertion slots are provided in two sides of the bottom thereof with two plastic projection for preventing the escape of the guide rods. These plastic projections are seen, for example, as projections 321 in FIGS. 2 and 3 of Lin U.S. Pat. No. 6,126,579. Located between the two insertion slots is a through slot 18 for receiving the pull cord. The plastic projections of the weights are prone to wear, thereby causing the weights to be insecurely superimposed. As a result, the weights become a safety problem of the prior art exercise device.
SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide an exercise machine with a plurality of weights which are easy assembly and safety from the shortcomings of the prior art weights described above.
The weights of the present invention are provided with a plurality of holes, any one of which extends into an insertion slot for allowing a guide rod to be held in the round hole. An elastic clamp is disposed in the round hole and the insertion slot for sealing off the open end of the insertion slot. An adjustment rod is received in other hole of the weights and is provided with a plurality of locating holes for receiving an insertion pin to urge a selected weight. The weights are securely held.
REFERENCES:
patent: 4601466 (1986-07-01), Lais
patent: 4614338 (1986-09-01), Castillo
patent: 5135451 (1992-08-01), Chen
patent: 6126579 (2000-10-01), Lin
patent: 6174265 (2001-01-01), Alessandri
patent: 6193635 (2001-02-01), Webber et al.
patent: D462729 (2002-09-01), Lawson
Browdy and Neimark , P.L.L.C.
Nguyen Tam
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