Jogging machine having a jogging platform adjustable and foldable structure

Information

  • Patent Grant
  • 6695751
  • Patent Number
    6,695,751
  • Date Filed
    Friday, March 7, 2003
    23 years ago
  • Date Issued
    Tuesday, February 24, 2004
    22 years ago
  • Inventors
  • Examiners
    • Crow; Stephen R.
    Agents
    • Rosenberg, Klein & Lee
Abstract
A jogging machine having a jogging platform adjustable and foldable structure comprises a base, a jogging platform, a wheel base, a linear actuating device, and two pumps. The base and the jogging platform are pivoted by a pair of arms. The base comprises a pair of rails inwardly. The wheel base has one end located underneath the jogging platform and the other end provided with a pair of wheels sliding on the rails of the base. The wheel base is linked by the linear actuating device to slide. The pumps are secured between the base and the jogging platform. When the jogging machine is not in use, the jogging platform is folded with respect to the base by the arms and the pumps will hold the jogging platform at place.
Description




FIELD OF THE INVENTION




This invention relates to a jogging machine, and more particularly, to a jogging machine having a jogging platform adjustable and foldable structure.




BACKGROUND OF THE INVENTION




Living in this modern world people are driven to make living. People spend more time indoor and less time to go outdoor life. In order to keep physical in shape, various indoor exercise equipments are invented. One of which is a jogging machine, which is a mild exercise machine and can be folded when not in use. However, when the jogging platform of the jogging machine is lifted upwardly, the entire weight of the jogging platform falls onto a linear actuating device to stand still, which shortens the life span of the linear actuating device.




SUMMARY OF THE INVENTION




It is the primary object of the present invention to provide a jogging machine having a jogging platform adjustable and foldable structure, which runs more steady and more comfortably.




It is another object of the present invention to provide a jogging machine having a jogging platform adjustable and foldable structure, which is much safe in folding status.




It is a further object of the present invention to provide a jogging machine having a jogging platform adjustable and foldable structure, which can last longer.











BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1

is an exploded view of the present invention;





FIG. 2

is a side perspective view of

FIG. 1

;





FIG. 3

is a bottom view of

FIG. 1

;





FIG. 4

is a side view of

FIG. 1

, showing the present invention in an operating status;





FIG. 5

is a side view of

FIG. 1

, showing the present invention in a folding status; and





FIG. 6

is a bottom view of the present invention in a folding status.











DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT




A jogging machine having a jogging platform adjustable and foldable structure comprises a base


1


, a jogging platform


2


, a wheel base


3


, a linear actuating device


4


and two pumps


5


.




The base


1


is laid flat on the floor and comprises a pair of side supports


11


to support a panel


12


on the top thereof. One of the side supports


11


has a hole


111


, and the lower portion of the base


1


is provided with a pair of rails


13


.




The jogging platform


2


has a motor


21


, a pulley


22


, and a plurality of ribs


23


crossly secured to the bottom thereof. Two L-shaped arms


24


are secured to the front end of the jogging platform


2


with one end


241


of each arm


24


pivoted to the jogging platform


2


and the other end


242


pivoted to the base


1


to connect the base


1


and the jogging platform


2


together. A stopper


25


is formed on one side of the jogging platform


2


, which has a spring


251


at the inward. When the jogging platform


2


is in a standing position, the stopper


25


will be located in the hole


111


of the side support


11


of the base


1


. The other end of the jogging platform


2


is provided with a pair of rollers


26


thereat. A pair of pins


271


is formed on the two sides of the jogging platform


2


above the arms


24


.




The wheel base


3


is located underneath the jogging platform


2


, and has one end


31


pivoted to the jogging platform


2


while the other end is provided with a pair of wheels


32


sliding onto the rails


13


of the base


1


, and further comprises a pair of lugs


33


at a center rod thereof.




The linear actuating device


4


is a spiral elevating device being secured to one of the ribs


23


of the jogging platform


2


and is activated by a motor


41


to spin a bolt


43


to move in and out within a tube


42


in a threaded manner. The tube


42


has one end pivoted to the lugs


33


of the wheel base


3


by means of a fastener


6


composed of a bolt


61


and a nut


62


to pull and push the wheel base


3


along the rails


13


of the base


1


.




The pumps


5


are secured on respective sides of the jogging platform


2


. Each pump


5


has a strut


51


with one end of the strut


51


secured to the bottom of the jogging platform


2


by means of a fastener


6


A composed of a bolt


61


A and a nut


62


A while the other end of the pump


5


is pivoted on the base


1


.




To assemble the present invention, the base


1


is placed on the ground, as shown in

FIGS. 2 and 3

, the front end of the jogging platform


2


is seated on the base


1


and pivoted with the front ends


241


of the two arms


24


to the base


1


. The rear end of the jogging platform


2


is supported by the rollers


26


on the ground. The wheel base


3


is also secured to the bottom of the jogging platform


2


close to the ends


241


of the arms


24


. The pins


27


, at this moment, are seated above the arms


24


, which also keep the jogging platform


2


at place when in a folding status. The linear actuating device


4


has the tube


42


pivoted to the lugs


33


at the center section of the wheel base


3


.




When the jogging platform


2


is lifted upward, as shown in

FIG. 4

, the linear actuating device


4


will pull the tube


42


reward, which links the wheels


32


of the wheel base


3


to slide along the rails


13


and the wheel base


3


moves upward, subsequently to support the jogging platform


2


, and whereas the rollers


26


will roll the jogging platform


2


to assist the upward movement of the jogging platform


2


. The upward movement pivots the jogging platform


2


and the ends


241


of the arms


24


with respect to the ends


242


of the arms


24


, which assists to lift up the jogging platform


2


. Upon the jogging platform


2


has reached to the position, the wheels


32


and the ends


242


of the arms


24


support the front end of the jogging platform


2


while the rollers


26


support the rear end of the jogging platform


2


. This design can hold the jogging platform


2


steady and can undertake more weight in a steady manner.




When the jogging platform


2


is collapsed vertically, as shown in

FIGS. 5 and 6

, the tube


42


of the linear actuating device


4


will stretch to its maximum length, thus the jogging platform


2


maintains a parallel position with respect to the base


1


. The strut


51


of each pump


5


will also stretch to its maximum length, at this moment, wherein the arms


24


also change to an upright position. The stopper


25


of the jogging platform


2


will be urged by the spring


251


to insert into the hole


111


of the base


1


, which also keeps the jogging platform


2


in an upright position.




To lay the jogging platform


2


flat, simply pull the stopper


25


to detach from the hole


111


, and the jogging platform


2


is free to put down, whereas the strut


51


of the pump


5


buffers the jogging platform


2


to lay in a slow movement.



Claims
  • 1. A jogging machine having a jogging platform adjustable and foldable structure comprising a base, a jogging platform, a wheel base, a linear actuating device, and two pumps, whereinsaid base seating flat on the ground with a pair of side supports on respective sides and supporting a panel on a top thereof, said base comprising a pair of rails on respective bottom inner sides thereof, said jogging platform comprising a pair of arms on front respective sides to pivot said jogging platform to said base, each said arm having one end pivoted to said jogging platform and another end pivoted to said base, said wheel base being located underneath said jogging platform, and having one end pivoted to said jogging platform while another end being provided with a pair of wheels, said linear actuating device being secured to the bottom of said jogging platform, and comprising a tube being pivoted to a center rod of said wheel base, so that said tube activating said wheel base to slide along said rails, each of said pumps comprising a strut with one end secured to the bottom of said jogging platform while another end secured to said base, thus said linear actuating device linking said wheel base to slide, and when said jogging platform being moved either upward or downward, said wheels of said wheel base and said arms being supportive devices to collapse said jogging platform, said jogging platform being lifting upwardly with respect to said arms, and said pumps also functioning as supportive devices to said jogging platform in a steady standing position.
  • 2. The jogging machine having a jogging platform adjustable and foldable structure, as recited in claim 1, wherein an elastic stopper is formed on one side of said jogging platform to hold said jogging platform at place when in a folding status.
US Referenced Citations (4)
Number Name Date Kind
5868648 Coody et al. Feb 1999 A
6193634 Hurt Feb 2001 B1
6325745 Yu Dec 2001 B1
6579211 Wu Jun 2003 B2