U.S. patent application number 11/700851 was filed with the patent office on 2008-07-17 for cushion adjustable and display devices for treadmills.
Invention is credited to Dick Chang.
Application Number | 20080171640 11/700851 |
Document ID | / |
Family ID | 39012965 |
Filed Date | 2008-07-17 |
United States Patent
Application |
20080171640 |
Kind Code |
A1 |
Chang; Dick |
July 17, 2008 |
Cushion adjustable and display devices for treadmills
Abstract
A cushion adjustable device for a treadmill includes a base
plate fixed on a horizontal portion of one of two sides of a frame
of the treadmill and a movable member is slidably engaged with a
groove defined in the base plate. The movable member includes a
resilient roller which is in contact with an underside of the deck
of the treadmill. By moving the adjustable device, the resilient
roller is moved to a desired position relative to the deck so as to
provide a better cushion feature of the deck. A cushion display
device includes an indication member and an extension rod which is
fixed to the underside of the deck so that when the deck is
deformed in vertical direction, the indication member is moved in
vertical direction to show the deformation of the deck in the
vertical direction.
Inventors: |
Chang; Dick; (Tai-chung
Hsien, TW) |
Correspondence
Address: |
ROSENBERG, KLEIN & LEE
3458 ELLICOTT CENTER DRIVE-SUITE 101
ELLICOTT CITY
MD
21043
US
|
Family ID: |
39012965 |
Appl. No.: |
11/700851 |
Filed: |
February 1, 2007 |
Current U.S.
Class: |
482/54 |
Current CPC
Class: |
A63B 22/0228 20151001;
A63B 22/0207 20151001; A63B 22/0235 20130101 |
Class at
Publication: |
482/54 |
International
Class: |
A63B 22/02 20060101
A63B022/02 |
Foreign Application Data
Date |
Code |
Application Number |
Jan 16, 2007 |
CN |
200720103230.6 |
Claims
1. A treadmill comprising: a frame having two sides and a motor
connected between the two sides, two rollers connected between the
two sides of the frame and driven by the motor, two posts extending
from the two sides of the frame and connected with a handle, each
of the two sides of the frame having a vertical portion and a
horizontal portion which extends from an inner side of the vertical
portion, a plurality of resilient members fixed on each of the two
horizontal portions, a deck supported on the resilient members and
fixed to the horizontal portions, a loop-like endless belt driven
by the two rollers and the deck located between a top portion and a
bottom portion of the loop-like endless belt; a cushion display
device having an indication member which is fixed to an underside
of the deck and the indication member movably pointing marks seen
on an outside of one of the vertical portions when the deck is
deformed in vertical direction, and a cushion adjustable device
located on one of the horizontal portions and beneath the deck, the
cushion adjustable device having a base plate fixed on the
horizontal portion and a movable member movably engaged with a
groove defined in the base plate, a resilient roller connected to
the movable member which is operated from an outside of the
frame.
2. The treadmill as claimed in claim 1, wherein the cushion
adjustable device is located on a mediate portion of the horizontal
portion.
3. The treadmill as claimed in claim 1, wherein the base plate
includes two sidewalls and the groove is defined between the two
sidewalls, two elongate wedge-shaped engaging recesses are defined
in the two sidewalls respectively, the movable member has two
wedge-shaped sides which are slidably engaged with the two elongate
wedge-shaped engaging recesses.
4. The treadmill as claimed in claim 1, wherein the movable member
has a toothed surface defined in a top thereof and two lugs extend
from the two sidewalls of the base plate respectively, a rod
extends through two respective holes in the two lugs, a gear
located between the two lugs, a through hole the vertical portion
and is connected to a knob, the gear is engaged with the toothed
surface so that the movable member is moved relative to the deck by
rotating the knob.
5. The treadmill as claimed in claim 4, wherein the rod has a
square end which is securely engaged with a square recess defined
in the knob.
6. The treadmill as claimed in claim 4, wherein a ridge extends
radially from an outer periphery of the rod and the gear includes a
passage through which the rod extends, a slot is defined in an
inner periphery of the passage and the ridge on the rod is engaged
with the slot.
7. The treadmill as claimed in claim 1, wherein a U-shaped bracket
is connected to an end of the movable member and includes two
extensions, the resilient roller is located between the two
extensions by extending a pin extending through two respective
holes in the two extensions and the resilient roller.
8. The treadmill as claimed in claim 7, wherein the pin has an end
extending through a first elongate slot defined in the vertical
portion, a second elongate slot defined in a cover attached to the
vertical portion and is connected with a cap which has a point, a
transparent member is attached on the cover and the point is
movably located within a rage of the transparent member.
9. The treadmill as claimed in claim 1, wherein a cover is attached
to the vertical portion and includes an opening with which a
transparent plate is engaged, the marks are marked on the
transparent plate, an extension rod perpendicularly extends from a
rear side of the indication member and the extension rod movably
extends through a vertical slot defined in the vertical portion and
is connected to the underside of the deck.
Description
FIELD OF THE INVENTION
[0001] The present invention relates to cushion adjustable and
display devices for treadmills, wherein a resilient roller can be
moved to a desired position under the deck so as to evenly support
the load and the deformation of the deck can be displayed.
BACKGROUND OF THE INVENTION
[0002] A conventional treadmill 40 is shown in FIG. 9 and generally
includes a frame with two side support boards 411 and two rollers
43 are connected between the two side support boards 411. A motor
41 is connected to a front end of the frame and two posts 42 extend
from two sides of the frame so as to be connected with a handle
which is not shown. A plurality of resilient members 412 are
located on a top of each of the side support boards 411 and a deck
44 is supported on the resilient members 412 and fixed to the
frame. An endless belt 45 is driven by the rollers 43 which are
driven by the motor 41 and the deck 44 is located between the top
portion and the bottom portion of the loop-like endless belt 45. As
shown in FIG. 10, when a user walking or running on the endless
belt 45, the load is supported by the resilient members 412 which
are deformed by the load and absorb the shocks so that the user
feel comfortable when using the treadmill. However, the resilient
members 412 cannot effectively provide a satisfied result to the
users and cannot be adjustable according needs of different
users.
[0003] The present invention intends to provide cushion adjustable
and display devices which respectively adjust the position of the
resilient roller under the deck and displays levels of the
deformation of the deck.
SUMMARY OF THE INVENTION
[0004] The present invention relates to a treadmill which comprises
a frame having two sides and a motor and two rollers are connected
between the two sides. Each of the two sides of the frame has a
vertical portion and a horizontal portion, a plurality of resilient
members are fixed on each of the two horizontal portions. A deck is
supported on the resilient members and fixed to the horizontal
portions. The deck is located between a top portion and a bottom
portion of a loop-like endless belt driven by the two rollers. A
cushion display device has an indication member which is fixed to
an underside of the deck and movably points marks seen on an
outside of one of the vertical portions when the deck is deformed
in vertical direction. A cushion adjustable device is located on
one of the horizontal portions and beneath the deck. The cushion
adjustable device has a base plate fixed on the horizontal portion
and a movable member is movably engaged with a groove defined in
the base plate. A resilient roller is connected to the movable
member which can be operated from an outside of the frame.
[0005] The primary object of the present invention is to provide a
cushion adjustable cushion device for a treadmill wherein the
movable cushion device has a resilient roller which can be moved
relative to the underside of the deck when needed.
[0006] Another object of the present invention is to provide a
cushion display device for a treadmill wherein the deformation of
the deck in vertical direction can be seen from outside of the
frame by the cushion display device.
[0007] The present invention will become more obvious from the
following description when taken in connection with the
accompanying drawings which show, for purposes of illustration
only, a preferred embodiment in accordance with the present
invention.
BRIEF DESCRIPTION OF THE DRAWINGS
[0008] FIG. 1 is a perspective view to show the treadmill with
cushion adjustable and display devices of the present
invention;
[0009] FIG. 2 shows the deck, the endless belt and the frame of the
treadmill;
[0010] FIG. 3 is an exploded view to show the cushion adjustable
and display devices of the present invention;
[0011] FIG. 4 is a perspective view to show the cushion adjustable
device of the present invention;
[0012] FIG. 5 is a perspective view to show the knob of the cushion
adjustable device and the transparent plate for the cushion display
device of the present invention;
[0013] FIG. 6 is a side cross sectional view to show that the
resilient roller can be movable relative to the deck and the base
plate;
[0014] FIG. 7 is a side cross sectional view to show that the deck
is deformed in vertical direction;
[0015] FIG. 8 is a side cross sectional view to show that the
resilient roller is moved to a position to support the load on the
deck;
[0016] FIG. 9 shows the deck, the endless belt, the frame and the
resilient members on the frame of the traditional treadmill,
and
[0017] FIG. 10 is a side cross sectional view to show that the
resilient members are compressed when the user uses the
conventional treadmill.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0018] Referring to FIGS. 1 to 6, the treadmill "A" of the present
invention comprises a frame 12 having two sides and a motor 10 and
two rollers are connected between the two sides. Two rollers are
driven by the motor 10. Two posts 11 extend from the two sides of
the frame 12 and are connected with a handle. Each of the two sides
of the frame 12 has a vertical portion 13 and a horizontal portion
14 which extends from an inner side of the vertical portion 13. A
plurality of resilient members 17, 18, 19 are fixed on each of the
two horizontal portions 14. A deck 15 is supported on the resilient
members 17, 18, 19 and is fixed to the horizontal portions 14 by
extending bolts through the deck 15, the resilient members 17 to 19
and being connected to the horizontal portions 14. A loop-like
endless belt 16 is driven by the two rollers and the deck 15 is
located between a top portion and a bottom portion of the loop-like
endless belt 16.
[0019] A cushion display device 20 has an indication member 21 and
an extension rod 22 perpendicularly extends from a rear side of the
indication member 21 and the extension rod 22 movably extends
through a vertical slot 131 defined in the vertical portion 13 and
is connected to the underside of the deck 15. A cover 34 is
attached to an outside of the vertical portion 13 and includes an
opening 341 with which a transparent plate 23 is engaged. A
plurality of marks 24 are marked on the transparent plate 23 so
that when the deck 15 is deformed in vertical direction as shown in
FIG. 7, the extension rod 22 and the indication member 21 are moved
with the deck 15 so that the deformation can be seen by reading the
marks 24.
[0020] A cushion adjustable device 30 is located on one of the
horizontal portions 14 and beneath the deck 15. Preferably, the
cushion adjustable device 30 is located on a mediate portion of the
horizontal portion 14. The cushion adjustable device 30 includes a
base plate 31 fixed on the horizontal portion 14 and the base plate
31 includes two sidewalls and a groove 311 is defined between the
two sidewalls. Two elongate wedge-shaped engaging recesses 312 are
defined in the two sidewalls respectively. Two lugs 313 extend from
the two sidewalls of the base plate 31 respectively and each lug
313 has a hole 314 defined therethrough.
[0021] A movable member 32 has a toothed surface 322 defined in a
top thereof and two wedge-shaped sides 321 which are slidably
engaged with the two elongate wedge-shaped engaging recesses 312. A
U-shaped bracket 323 is connected to an end of the movable member
32 and includes two extensions 324. A resilient roller 33 is
located between the two extensions 324 by extending a pin 326
through two respective holes 325 in the two extensions 324 and the
resilient roller 33. The pin 326 has an end extending through a
first elongate slot 132 defined in the vertical portion 13, a
second elongate slot 342 defined in the cover 34 attached to the
vertical portion 13 and is connected with a cap 327 which has a
point 328. A transparent member 35 is attached on the cover 34 and
the point 328 is movably located within a rage of the transparent
member 35.
[0022] A rod 37 has a square end 371 which extends through two
respective holes 314 in the two lugs 313, a passage 381 in a gear
38 located between the two lugs 313, a first through hole 133 the
vertical portion 13, a second through hole 343 in the cover 34 and
is securely engaged with a square recess defined in the knob 36. A
ridge 372 extends radially from an outer periphery of the rod 37
and a slot 382 is defined in an inner periphery of the passage 381
of the gear 38 so that the ridge 372 on the rod 37 is engaged with
the slot 382. An annular groove 373 is defined in the rod 37 and a
C-shaped clip 374 is engaged with the annular groove 373 to
position the gear 38. The gear 38 is engaged with the toothed
surface 322 so that the movable member 32 is moved relative to the
deck 15 by rotating the knob 36.
[0023] As shown in FIG. 7, when a user is walking or running on the
deck 15, the load from the user applies to a position of the deck
15 according to the position that the user's foot contacts the deck
15 and creates a deformation "h1" in vertical direction. When the
user wants to have better support, the resilient roller 33 can be
moved to that position as shown in FIG. 8 by rotating the knob 36.
In other words, the user can check the cushion display device 20 to
decide that the level of the deformation of the deck 15, and the
user operates the knob 36 to move the resilient roller 33 to reduce
the deformation of the deck 15 from "h1" to "h2" as shown in FIG.
8.
[0024] While we have shown and described the embodiment in
accordance with the present invention, it should be clear to those
skilled in the art that further embodiments may be made without
departing from the scope of the present invention.
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