U.S. patent application number 11/446289 was filed with the patent office on 2007-08-09 for exercising machine.
Invention is credited to Chin-Lien Huang.
Application Number | 20070184944 11/446289 |
Document ID | / |
Family ID | 37987980 |
Filed Date | 2007-08-09 |
United States Patent
Application |
20070184944 |
Kind Code |
A1 |
Huang; Chin-Lien |
August 9, 2007 |
Exercising machine
Abstract
An exercising machine includes a base frame having two
positioning plates each of which has equiangularly spaced locating
holes, and two crank arms respectively pivoted to the positioning
plates. Two dampers are respectively coupled to the crank arms to
impart a damping resistance during operation of the crank arms. Two
positioning members are respectively movably mounted on the crank
arms for selectively engaging into the locating holes of the
positioning plates to secure the crank arms at a desired angle. Two
spring members are sleeved onto the positioning members for forcing
the positioning members into engagement with the locating holes of
the positioning plates. Two levers are respectively pivoted to the
crank arms for operation by the user to pull the positioning
members away from the locating holes of the positioning members
through a respective traction member.
Inventors: |
Huang; Chin-Lien; (Taichung
City, TW) |
Correspondence
Address: |
BROWDY AND NEIMARK, P.L.L.C.;624 NINTH STREET, NW
SUITE 300
WASHINGTON
DC
20001-5303
US
|
Family ID: |
37987980 |
Appl. No.: |
11/446289 |
Filed: |
June 5, 2006 |
Current U.S.
Class: |
482/94 ; 482/100;
482/99 |
Current CPC
Class: |
A63B 2225/09 20130101;
A63B 21/0628 20151001; A63B 21/06 20130101 |
Class at
Publication: |
482/94 ; 482/99;
482/100 |
International
Class: |
A63B 21/06 20060101
A63B021/06; A63B 21/062 20060101 A63B021/062 |
Foreign Application Data
Date |
Code |
Application Number |
Feb 6, 2006 |
TW |
95202160 |
Claims
1. An exercising machine comprising: a base frame having a
positioning plate with a plurality of locating holes and a crank
arm pivoted to said positioning plate; a damper mounted in said
base frame and coupled to said crank arm for imparting a damping
resistance to said crank arm during operation of said crank arm by
the user; and a position-control device having a lever pivoted to
said crank arm, a positioning member for engaging into one of the
locating holes of said positioning plate to secure the crank arm to
the positioning plate, and a traction member connected between said
lever and said positioning member for pulling by said lever to
disengage said positioning member from the locating hole of the
positioning plate.
2. The exercising machine as claimed in claim 1, wherein the
position-control device further comprises a spring member sleeved
onto the positioning member for forcing the positioning member into
engagement with one locating hole of the positioning plate.
3. The exercising machine as claimed in claim 1, wherein said
position-control device further comprises two locating plates
respectively affixed to said crank arm; said traction member is
inserted through the locating plates of the position-control
device.
4. An exercising machine comprising: a base frame having a
positioning plate with a plurality of locating holes and a crank
arm pivoted to said positioning plate; and a position-control
device having a lever pivoted to said crank arm, a positioning
member movably mounted on said crank arm and engageable into one of
the locating holes of said positioning plate to secure the crank
arm to the positioning plate, a traction member connected between
said lever and said positioning member for pulling by said lever to
disengage said positioning member from the locating hole of the
positioning plate, and a spring member sleeved onto the positioning
member for forcing the positioning member into engagement with one
of the locating holes of the positioning plate.
5. The exercising machine as claimed in claim 4, wherein said
position-control device further comprises two locating plates
respectively affixed to said crank arm; said traction member is
inserted through the locating plates of the position-control
device.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to exercising machines and
more particularly, to such an exercising machine, which uses
position-control devices for enabling the user to quickly adjust
the position of crank arms subject to different operation
needs.
[0003] 2. Description of the Related Art
[0004] FIG. 6 shows a conventional exercising machine 90. According
to this design, the exercising machine 90 comprises a traction
mechanism 92. The traction mechanism 92 comprises two arms 94 and
two control plates 96. The arms 94 each have a positioning member
942. The control plates 96 are respectively coupled to one end of
each of the arms 94, each having a plurality of equiangularly
spaced through holes 962. By means of selectively inserting the
positioning members 942 into the locating holes 962 of the control
plates 96, the arms 94 are set at a predetermined angle for biasing
by the user. Therefore, by means of the traction mechanism 92, the
user can adjust the exercising machine to provide different biasing
angles for exercising the muscles of different parts of the
body.
[0005] However, when adjusting the biasing angle of the two arms
94, the user must leave the exercising machine 90, and then remove
the two positioning members 942 from the control plates 96, and
then insert the positioning members 942 into the selected locating
holes 962. After adjustment, the user can then return to the
exercising machine 90 and operate the exercising machine 90 again.
When wishing to exercise the muscles of a different party of the
body, the user must leave the exercising machine 90 and then adjust
the arms 94 to the desired angle. The adjustment of this traction
mechanism 92 is complicated and inconvenient.
SUMMARY OF THE INVENTION
[0006] The present invention has been accomplished under the
circumstances in view. It is the main object of the present
invention to provide an exercising machine, which uses
position-control device means for enabling the user to quickly
adjust the position of crank arm means subject to different
operation needs.
[0007] To achieve this object of the present invention, the
exercising machine comprises a base frame, damper means, and at
least one position-control device. The base frame includes at least
one positioning plate with a plurality of locating holes and at
least one crank arm pivoted to the at least one positioning plate.
The damper means is mounted in the base frame and coupled to the at
least one crank arm for imparting a damping resistance to the at
least one crank arm during operation of the at least one crank arm
by the user. The at least one position-control device includes a
lever pivoted to the at least one crank arm, a positioning member
movably mounted on the at least one crank arm and engageable into
one locating hole of the at least one positioning plate to secure
the crank arm to the positioning plate at a desired angle, and a
traction member connected between the lever and the positioning
member for pulling by the lever to disengage the positioning member
from the locating hole of the positioning plate.
[0008] In a preferred embodiment of the present invention, the
position-control device further comprises a spring member sleeved
onto the positioning member for forcing the positioning member into
engagement with one locating hole of the positioning plate.
BRIEF DESCRIPTION OF THE DRAWINGS
[0009] FIG. 1 is a front view of an exercising machine according to
a preferred embodiment of the present invention.
[0010] FIG. 2 is a perspective view of a part of the present
invention, showing the structure of the position-control
device.
[0011] FIG. 3 is a front view of the position-control device before
pressing of the lever.
[0012] FIG. 4 is a front view of the position-control device
showing the lever pressed.
[0013] FIG. 5 is a schematic drawing showing the exercising machine
in operation.
[0014] FIG. 6 is a front view of an exercising machine according to
the prior art.
DETAILED DESCRIPTION OF THE INVENTION
[0015] As shown in FIGS. 1-3, an exercising machine 10 in
accordance with the preferred embodiment of the present invention
comprises a base frame 20, two dampers 30, two position-control
devices 40, and two spring members 50.
[0016] The base frame 20 comprises a seat 22 for allowing the user
to sit on, and two semicircular positioning plates 24 bilaterally
connected to the bottom side of the seat 22. Each semicircular
positioning plate 24 has a plurality of equiangularly spaced
locating holes 242. The base frame 20 further comprises two crank
arms 26 respectively pivoted to the semicircular positioning plates
24. Therefore, the user can bias the crank arms 26 relative to the
semicircular positioning plates 24.
[0017] The two dampers 30 are respectively provided at two opposite
lateral sides of the base frame 20. The crank arms 26 are
respectively coupled to the dampers 30. When biasing the crank arms
26, the dampers 30 impart a damping resistance to the crank arms 26
respectively.
[0018] The position-control devices 40 are respectively mounted on
the crank arms 26 of the base frame 20 each comprising a lever 42,
two locating plates 44, a traction member 46, and a positioning
member 48. The lever 42 is pivotally mounted on the associating
crank arm 26 for operation by the user. The two locating plates 44
are welded to one end of the associating crank arm 26, and spaced
from each other at a distance. The traction member 46 according to
this embodiment is a steel cable having one end, namely, the front
end connected to one end of the lever 42 and the other end, namely,
the rear end inserted through the two locating plates 44 and
connected to the positioning member 48. According to this
embodiment, the positioning member 48 is a pin engaged into one
locating hole 242 of the associating semicircular positioning plate
24 to hold the associating crank arm 26 at a predetermined angle
for biasing by the user. By means of operating the lever 42 to move
the traction member 46, the positioning member 48 is engaged into
one locating hole 242 of the associating semicircular positioning
plate 24 or disengaged from the corresponding locating hole
242.
[0019] The spring members 50 are coil springs respectively sleeved
onto the positioning members 48 of the position-control devices 40,
each having one end stopped at a part of the associating
positioning member 48 and the other end stopped against one
locating plate 44 of the associating position-control device 40.
The spring members 50 impart an outward pressure to the associating
positioning members 48, forcing the associating positioning members
48 into engagement with the associating semicircular positioning
plates 24.
[0020] Referring to FIG. 4, before using the exercising machine 10
to exercise the muscles of a different part of the body, the user
must adjust the crank arms 26 to the proper angle. At this time,
hold the levers 26 with the two hands and then press the levers 26
to pull the associating traction members 46 and to further
disengage the associating positioning members 48 from the
corresponding locating holes 242 of the associating semicircular
positioning plate 24, and then bias the crank arms 26 to the
desired angle as shown in FIG. 5, and then release the levers 42
for enabling the spring members 50 to force the positioning members
48 into the newly selected locating holes 242 respectively, thereby
holding the crank arms 26 at the desired angle for operation to
exercise the muscles of the body.
[0021] Therefore, the exercising machine 10 of the present
invention allows the user to quickly adjust the crank arms 26 to
the desired position when the user is sitting on the seat 22 of the
exercising machine 10, i.e., the user can adjust the angular
position of the crank arms 26 without leaving the exercising
machine 10.
* * * * *