U.S. patent application number 09/737748 was filed with the patent office on 2002-09-12 for waist/back exerciser.
Invention is credited to Wu, Shen Yi.
Application Number | 20020128131 09/737748 |
Document ID | / |
Family ID | 24965144 |
Filed Date | 2002-09-12 |
United States Patent
Application |
20020128131 |
Kind Code |
A1 |
Wu, Shen Yi |
September 12, 2002 |
Waist/back exerciser
Abstract
A waist/back exerciser including a leg frame assembly, a
swinging rack and an adjustment unit. The leg frame assembly
includes a front frame body, a rear frame body and a transverse
beam connected therebetween to form a firm pattern of leg frame
assembly. A slide seat of the adjustment unit is slidably fitted on
the transverse beam. The adjustment unit is connected to the
swinging rack via a link to form a longer force resistant arm,
whereby the swinging rack and the adjustment unit are more firmly
connected with each other.
Inventors: |
Wu, Shen Yi; (Taichung
Hsien, TW) |
Correspondence
Address: |
ROSENBERG, KLEIN & LEE
3458 ELLICOTT CENTER DRIVE-SUITE 101
ELLICOTT CITY
MD
21043
US
|
Family ID: |
24965144 |
Appl. No.: |
09/737748 |
Filed: |
December 18, 2000 |
Current U.S.
Class: |
482/142 ;
482/91 |
Current CPC
Class: |
A63B 21/00047 20130101;
A63B 23/0211 20130101; A63B 21/068 20130101; A63B 2208/0257
20130101; A63B 23/02 20130101; A63B 23/0233 20130101; A63B 21/4029
20151001 |
Class at
Publication: |
482/142 ;
482/91 |
International
Class: |
A63B 021/002; A63B
026/00 |
Claims
What is claimed is:
1. A waist/back exerciser comprising: a leg frame assembly
including a front frame body, one end of the front frame body
distal from the floor being pivotally connected with one end of a
rear frame body, a transverse beam being connected between the
front and rear frame bodies; a swinging rack pivotally disposed on
the leg frame assembly, one end of the swinging rack distal from
the end pivotally connected with the leg frame assembly being
equipped with a pedal, a stop bar extending from the pedal, whereby
when a user's feet step on the pedal, the user's legs can lean on
the stop bar, the end of the swinging rack opposite to the pedal
being equipped with a backing section for the user's waist and
abdomen to lean thereon; and an adjustment unit having a slide seat
slidably fitted on the transverse beam of the leg frame assembly, a
fixing member being disposed on the slide seat for fixing the slide
seat on the transverse beam, a link being pivotally connected with
the slide seat, the other end of the link being pivotally connected
with the swinging rack, whereby when the slide seat is moved, the
swinging rack is driven to swing via the link so as to change the
angle contained by the swinging rack and the leg frame
assembly.
2. A waist/back exerciser as claimed in claim 1, wherein the
swinging rack is a hollow frame body, an inner tube being fitted in
the swinging rack, the backing section being disposed at one end of
the inner tube extending out of the swinging rack, the inner tube
being formed with multiple locating holes, a locating pin being
disposed on the swinging rack corresponding to the locating holes,
whereby by means of fitting the locating pin into different
locating holes, the length of the inner tube extending out of the
swinging rack can be adjusted.
3. A waist/back exerciser as claimed in claim 1, wherein the fixing
member disposed on the slide seat of the adjustment unit is a bolt
screwed in the slide seat, whereby by means of tightening the bolt,
the slide seat is fixed on the transverse beam.
4. A waist/back exerciser as claimed in claim 1, wherein the
adjustment unit further includes a safety pin disposed on the slide
seat, the transverse beam of the leg frame assembly being formed
with multiple fixing holes corresponding to the safety pin, a
resilient member being disposed in the safety pin, whereby in
normal state, the safety pin is always resiliently pushed by the
resilient member toward the fixing holes of the transverse
beam.
5. A waist/back exerciser as claimed in claim 1, wherein two
handles laterally extend from the end of the swinging rack with the
backing section for the user's hands to grip.
6. A waist/back exerciser as claimed in claim 1, wherein the link
of the adjustment unit is pivotally connected with a section of the
swinging rack near the pedal.
7. A waist/back exerciser as claimed in claim 1, wherein a middle
section of the back section is formed with a split.
Description
BACKGROUND OF THE INVENTION
[0001] The present invention is related to a waist/back exerciser
which has better firmness and can be stagelessly adjusted in
angle.
[0002] FIG. 8 shows a conventional waist/back exerciser including a
triangular leg frame 81 and a swinging rack 82 pivotally disposed
on the leg frame 81. The swinging rack 82 has an adjustment seat 83
formed with multiple perforations 84. A pin member 85 is disposed
on the leg frame 81. The pin member 85 is fitted into one of the
holes 84 of the adjustment seat 83 for changing the inclination
angle of the swinging rack 82. A pedal 86 and a stop bar 87 are
mounted at bottom end of the swinging rack 82. A backing section 88
and a grip 89 are arranged on the other end of the swinging rack 82
opposite to the pedal 86. A user's feet can step on the pedal 86
with the waist or abdomen leant on the backing section 88 for
exercising the waist and abdomen.
[0003] When exercising, the weight of the entire body of the user
is borne by the swinging rack 82 which is located on the leg frame
81 only by the pin member 85 fitted in the hole 84 of the
adjustment seat 83. In other words, the adjustment seat 83 and the
pin member 85 must suffer the total force exerted onto the
exerciser by the user. The adjustment seat 83 has a quite short
force resistant arm. Therefore, after a period of use, the
adjustment seat 83 is subject to deformation or even breakage due
to the application force. Also, the pin member 85 is liable to
deform due to excessively great force. Therefore, the pin member 85
often can be hardly firmly fixed in the adjustment seat 83. As a
result, the user may accidentally get hurt during exercise.
Furthermore, although the pin member 85 can be fitted into
different holes 84 of the adjustment seat 83 to adjust the angle of
the swinging rack 82 by multiple stages, it is impossible to
stagelessly adjust the angle of the swinging rack 82. This is still
inconvenient for an old man or a user with poor exercising
ability.
SUMMARY OF THE INVENTION
[0004] It is therefore a primary object of the present invention to
provide a waist/back exerciser in which a slide seat of the
adjustment unit is slidably fitted on the transverse beam. The
slide seat is connected to the swinging rack via a link so that the
swinging rack has a longer force resistant arm which enhances the
firmness of the swinging rack.
[0005] It is a further object of the present invention to provide
the above waist/back exerciser in which the slide seat and the
transverse beam are respectively disposed with safety pin and
fixing holes. Therefore, the slide seat is prevented from slipping
away from the transverse beam so as to ensure safety in use.
[0006] It is still a further object of the present invention to
provide the above waist/back exerciser in which the slide seat is
locked on the transverse beam by a fixing member so that the
swinging rack can be stagelessly adjusted in angle.
[0007] According to the above objects, the waist/back exerciser of
the present invention includes:
[0008] a leg frame assembly including a front frame body, one end
of the front frame body distal from the floor being pivotally
connected with one end of a rear frame body, a transverse beam
being connected between the front and rear frame bodies;
[0009] a swinging rack pivotally disposed on the leg frame
assembly, one end of the swinging rack distal from the end
pivotally connected with the leg frame assembly being equipped with
a pedal, a stop bar extending from the pedal, whereby when a user's
feet step on the pedal, the user's legs can lean on the stop bar,
the end of the swinging rack opposite to the pedal being equipped
with a backing section for the user's waist and abdomen to lean
thereon; and
[0010] an adjustment unit having a slide seat slidably fitted on
the transverse beam of the leg frame assembly, a fixing member
being disposed on the slide seat for fixing the slide seat on the
transverse beam, a link being pivotally connected with the slide
seat, the other end of the link being pivotally connected with the
swinging rack, whereby when the slide seat is moved, the swinging
rack is driven to swing via the link.
[0011] The present invention can be best understood through the
following description and accompanying drawings wherein:
BRIEF DESCRIPTION OF THE DRAWINGS
[0012] FIG. 1 is a perspective assembled view of the present
invention;
[0013] FIG. 2 is a sectional view taken along line II-II of FIG.
1;
[0014] FIG. 3 is a sectional view taken along line III-III of FIG.
1;
[0015] FIG. 4 is a sectional view taken along line IV-IV of FIG.
1;
[0016] FIG. 5 shows the use of the present invention in one
state;
[0017] FIG. 6 shows the use of the present invention in another
state;
[0018] FIG. 7 shows the use of the present invention in still
another state;
[0019] and
[0020] FIG. 8 shows a conventional waist/back exerciser.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0021] Please refer to FIGS. 1 to 4. The waist/back exerciser of
the present invention includes:
[0022] a leg frame assembly 1 including a front frame body 11, one
end 111 of the front frame body 11 distal from the floor being
pivotally connected with a top end 121 of a rear frame body 12, a
transverse beam 13 being connected between the front and rear frame
bodies 11, 12 to form a firm pattern of leg frame assembly 1;
[0023] a swinging rack 2 pivotally disposed on the top end 121 of
the rear frame body 12, the swinging rack 2 being a hollow frame
body, an inner tube 21 being fitted in the swinging rack 2, the
inner tube 21 being formed with multiple locating holes 211, a
locating pin 22 being disposed on the swinging rack 2 corresponding
to the locating holes 211, the locating pin 22 being passed through
a seat body 221 screwed in the swinging rack 2, one end of the
locating pin 22 extending out of the swinging rack 2 being coupled
with a knob 222, the other end of the locating pin 22 extending
into the swinging rack 2 being a large diameter section 223, a
first spring 224 being fitted between the large diameter section
223 and the seat body 221 for resiliently pushing the locating pin
22, whereby in normal state, the locating pin 22 is fitted in one
of the locating holes 211 so as to locate the inner tube 21 in the
swinging rack 2. By means of fitting the locating pin 22 into
different locating holes 211, the length of the inner tube 21
extending out of the swinging rack 2 can be adjusted for users with
different heights.
[0024] The end of the swinging rack 2 distal from the end pivotally
connected with the leg frame assembly 1 is equipped with a pedal
23. A stop bar 24 extends from the pedal 23 for a user's feet to
lean thereon. The end of the swinging rack 2 opposite to the pedal
23 is equipped with a backing section 25 for the user's waist and
abdomen to lean thereon. A split 251 is formed at the middle of the
backing section 25. Two handles 26 laterally extend from the end of
the swinging rack 2 with the backing section 25 for the user's
hands to grip.
[0025] The exerciser of the present invention further includes an
adjustment unit 3 having a slide seat 31 slidably fitted on the
transverse beam 13 of the leg frame assembly 1. A bolt 311 is
screwed on the slide seat 31 for fixing the slide seat 31 on the
transverse beam 13. A washer 312 is positioned between the bolt 311
and the transverse beam 13 for increasing the contacting area
therebetween. A link 32 is pivotally connected with the slide seat
31. The other end of the link 32 is pivotally connected with a
section of the swinging rack 2 near the pedal 23. When the slide
seat 31 is moved, the swinging rack 2 is driven to swing via the
link 32. A safety pin 33 is additionally disposed on the slide seat
31. The transverse beam 13 of the leg frame assembly 1 is formed
with multiple fixing holes 131 corresponding to the safety pin 33.
The safety pin 33 is passed through a seat body 331 screwed in the
slide seat 31. One end of the safety pin 33 extending out of the
slide seat 31 is coupled with a knob 332. The other end of the
safety pin 33 extending into the slide seat 31 is a large diameter
section 333. A second spring 334 is fitted between the large
diameter section 333 and the seat body 331 for resiliently pushing
the safety pin 33, whereby in normal state, the safety pin 33 is
always pushed toward the fixing holes 131.
[0026] Prior to use, by means of the locating pin 22, a user can
adjust the length of the inner tube 21 extending out of the
swinging rack 2 according to personal height, whereby the waist or
abdomen of the user can lean on the backing section 25. Referring
to FIG. 5, for a person with poorer exercising ability ( such as a
patient during rehabilitation ) or an old man, the slide seat 31 of
the adjustment unit 3 can be adjusted to the end of the transverse
beam 13 near the front frame body 11 with the safety pin 33 fitted
in the fixing hole 13 of the transverse beam 13. Then the bolt 311
is tightened to lock the slide seat 31 on the transverse beam 13.
Under such circumstance, the swinging rack 2 is positioned by an
angle in a relatively upright state. When the user faces the front
frame body 11 with his/her feet stepping on the pedal 23, the legs
of the user will lean on the stop bar 24 and be stopped thereby. At
this time, the abdomen of the user will lean on the backing section
25. The split 251 of the middle of the backing section :25 prevents
the reproduction organs of a male user from being compressed. The
user can hold the grips 26 with both hands and bow his/her upper
half body downward and then lift the upper half body. Such
operation can be repeated to exercise or rehabilitate the abdomen
and waist. After a period of use, the user can lift his/her upper
half body totally by the muscle of the waist and abdomen without
holding the grips 26. This achieves greater exercising effect.
[0027] Please refer to FIG. 6. For a user with better strength, the
slide seat 31 of the adjustment unit 3 is stagelessly adjusted to a
section of the transverse beam 13 near the rear frame body 11.
Under such circumstance, the angle of the swinging rack 2 is
adjusted to a certain angle as necessary. Then the bolt 311 is
tightened to fix the slide seat 31 on the transverse beam 13. At
this time, the safety pin 33 is disaligned from any fixing hole 131
and the slide seat 31 is locked on the transverse beam 13 by means
of the tightening force of the bolt 311. When the swinging rack 2
is positioned in a relatively straight and horizontal state, the
user can exercise according to the aforesaid procedure. With the
swinging rack 2 positioned in a relatively straight and horizontal
state, when lifting the upper half body, the user must consume
greater muscle strength. Therefore, the exercising effect provided
for the abdomen and waist of the user is greater. During the
exercise, in case the bolt 311 unexpectedly loosens due to force
continuously exerted onto the slide seat 31, the slide seat 31 will
slide along the transverse beam 13. However, in normal state, the
safety pin 33 is pushed toward the fixing hole 131. Therefore, when
the slide seat 31 is slided to a position where the safety pin 33
is aimed at one of the fixing holes 131, the safety pin 33 will fit
into the fixing hole 131 to lock the slide seat 31 on the
transverse beam 13 without further sliding. Accordingly, accident
can be avoided.
[0028] Please now refer to FIG. 7. In use, the back of the user can
alternatively face the front frame body 11 with the hip leaning on
the backing section 25. At this time, the feet of the user can hook
the stop bar 24. During exercise, the user can bend his/her upper
half body downward and then lift the upper half body. Such
operation can be repeated to stretch and exercise the muscle of
abdomen.
[0029] In all the above exercising states, the swinging rack 2 must
bear a considerably great application force. The swinging rack 2 is
connected to the adjustment unit 3 by a link 32 which is pivotally
connected with a section of the swinging rack 2 near the pedal 23.
Therefore, the swinging rack 2 has longer force resistant arm which
enhances the stability of the swinging rack 2 in use. Furthermore,
the slide seat 31 and the transverse beam 13 are respectively
disposed with safety pin 33 and fixing holes 131. Therefore, the
slide seat 31 is prevented from slipping away from the transverse
beam 13 so as to ensure safety in use. In addition, the slide seat
31 is locked on the transverse beam 13 by a bolt 311 so that the
swinging rack 2 can be stagelessly adjusted in angle to meet the
requirements of different users.
[0030] The above embodiments are only used to illustrate the
present invention, not intended to limit the scope thereof. Many
modifications of the above embodiments can be made without
departing from the spirit of the present invention.
* * * * *