US20120295770A1 - Dual-Use Exercising Bike on which a User can Sit and Lie - Google Patents

Abstract

An exercising bike includes a main frame and a rear frame adjustably connected with the main frame. The main frame includes a support pipe having a slideway, a first linkage pivotally mounted on the support pipe, a seat mounted on the first linkage, a second linkage pivotally mounted on the support pipe, a handlebar mounted on the second linkage, and a third linkage pivotally connected with the first linkage and the second linkage. The rear frame includes an adjusting bar retractably mounted on the support pipe, a connecting lever pivotally connected with the adjusting bar and the first linkage, and at least one roller rotatably mounted on the adjusting bar and slidably mounted in the slideway. Thus, the position of the seat can be adjusted so that a user can operate the exercising bike in a sitting or lying posture.

Description

BACKGROUND OF THE INVENTION
• 1. Field of the Invention
• The present invention relates to an exercising equipment and, more particularly, to an exercising bike.
• 2. Description of the Related Art
• A conventional exercising bike comprises a support frame, a damping wheel unit mounted on the support frame, a seat mounted on the support frame, and a handlebar mounted on the support frame. The damping wheel unit includes a rotation wheel, a damper, a crank shaft, two cranks and two pedals. Thus, when a user moves the pedals to rotate the rotation wheel, the damper provides a damping force to the rotation wheel, so that the user has to apply a larger force to overcome the damping force so as to achieve an exercising effect. However, the seat has a fixed position so that the user can only sit on the seat to operate the exercising bike and cannot lie on the seat to operate the exercising bike, thereby limiting the exercising effect of the exercising bike.
BRIEF SUMMARY OF THE INVENTION
• In accordance with the present invention, there is provided a exercising bike, comprising a main frame and a rear frame adjustably connected with the main frame. The main frame includes a support pipe having an inner portion provided with a slideway, a first linkage pivotally mounted on the support pipe, a seat mounted on the first linkage to move in concert with the first linkage, a second linkage pivotally mounted on the support pipe, a handlebar mounted on the second linkage to move in concert with the second linkage, and a third linkage pivotally connected with the first linkage and the second linkage. The rear frame includes an elongate adjusting bar retractably mounted in the slideway of the support pipe of the main frame, a connecting lever having a lower end pivotally connected with the adjusting bar and an upper end pivotally connected with the first linkage of the main frame, and at least one roller rotatably mounted on the adjusting bar and slidably mounted in the slideway of the support pipe of the main frame.
• The primary objective of the present invention is to provide a dual-use exercising bike on which a user can sit and lie.
• According to the primary advantage of the present invention, the position of the seat of the main frame can be adjusted so that a user can operate the exercising bike in a sitting or lying posture, thereby enhancing the exercising effect.
• According to another advantage of the present invention, the roller of the rear frame is moved in the support pipe of the main frame so that the adjusting bar of the rear frame is moved in the support pipe of the main frame smoothly by guidance of the roller and will not produce noise during movement.
• According to a further advantage of the present invention, the driving mechanism and the adjusting mechanism are selected individually to decrease the cost of fabrication.
• Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING(S)
• FIG. 1 is a perspective view of an exercising bike in accordance with the preferred embodiment of the present invention.
• FIG. 2 is a partially exploded perspective view of the exercising bike as shown inFIG. 1.
• FIG. 3 is a side view of the exercising bike as shown inFIG. 1.
• FIG. 4 is a schematic operational view of the exercising bike as shown inFIG. 1.
• FIG. 5 is a side view of the exercising bike as shown inFIG. 4.
• FIG. 6 is a side view of an exercising bike in accordance with another preferred embodiment of the present invention.
• FIG. 7 is a side view of an exercising bike in accordance with another preferred embodiment of the present invention.
DETAILED DESCRIPTION OF THE INVENTION
• Referring to the drawings and initially toFIGS. 1-3, an exercising bike in accordance with the preferred embodiment of the present invention comprises amain frame10 and arear frame20 adjustably connected with themain frame10.
• Themain frame10 includes asupport pipe12 having an inner portion provided with aslideway121, afirst linkage15 pivotally mounted on thesupport pipe12, aseat16 mounted on thefirst linkage15 to move in concert with thefirst linkage15, asecond linkage17 pivotally mounted on thesupport pipe12, ahandlebar171 mounted on thesecond linkage17 to move in concert with thesecond linkage17, athird linkage18 pivotally connected with thefirst linkage15 and thesecond linkage17, adamping wheel unit13 mounted on thesupport pipe12, afront stand11 mounted on thesupport pipe12, and amounting bracket14 mounted on thesupport pipe12 to support thefirst linkage15, thesecond linkage17 and thedamping wheel unit13.
• Thesupport pipe12 of themain frame10 is arranged in a transverse manner. Theslideway121 of thesupport pipe12 of themain frame10 has a non-circular cross-sectional profile and preferably has a rectangular cross-sectional profile. Thefront stand11 of themain frame10 is mounted on an end portion of thesupport pipe12 and is arranged in a transverse manner. Thedamping wheel unit13 of themain frame10 is provided with twocranks131 and twopedals132. Thefirst linkage15 of themain frame10 has a lower end pivotally connected with themounting bracket14 and an upper end pivotally connected with theseat16. Thesecond linkage17 of themain frame10 has a lower end pivotally connected with themounting bracket14 and an upper end pivotally connected with thehandlebar171. Theseat16 of themain frame10 is provided with anarmrest161.
• Therear frame20 includes anelongate adjusting bar22 retractably mounted in theslideway121 of thesupport pipe12 of themain frame10, aconnecting lever25 having a lower end pivotally connected with the adjustingbar22 and an upper end pivotally connected with thefirst linkage15 of themain frame10, at least oneroller24 rotatably mounted on the adjustingbar22 and slidably mounted in theslideway121 of thesupport pipe12 of themain frame10, and arear stand21 mounted on the adjustingbar22.
• The adjustingbar22 of therear frame20 has a non-circular cross-sectional profile and preferably has a rectangular cross-sectional profile. The adjustingbar22 of therear frame20 has an inner portion provided with ascrew bore23. The adjustingbar22 of therear frame20 has a first end movably mounted in theslideway121 of thesupport pipe12 of themain frame10 and a second end protruding outward from theslideway121 of thesupport pipe12 of themain frame10. Therear stand21 of therear frame20 is mounted on the second end of the adjustingbar22 and is arranged in a transverse manner. The connectinglever25 of therear frame20 is pivotally connected with the second end of the adjustingbar22. The connectinglever25 of therear frame20 has an arc-shaped profile.
• The exercising bike further comprises anadjusting mechanism40 mounted on thesupport pipe12 of themain frame10 and connected with the adjustingbar22 of therear frame20 to move the adjustingbar22 of therear frame20 relative to thesupport pipe12 of themain frame10. Theadjusting mechanism40 includes a threadedrod42 rotatably mounted in theslideway121 of thesupport pipe12 of themain frame10 and screwed into thescrew bore23 of the adjustingbar22 of therear frame20, and anactuator41 mounted on thesupport pipe12 of themain frame10 and connected with the threadedrod42 to rotate the threadedrod42 relative to the adjustingbar22 of therear frame20 so that the screw bore23 of the adjustingbar22 of therear frame20 is movable on the threadedrod42 of theadjusting mechanism40 by rotation of the threadedrod42, and the adjustingbar22 of therear frame20 is movable relative to thesupport pipe12 of themain frame10. Theactuator41 of theadjusting mechanism40 consists of a motor and a speed reducer.
• The exercising bike further comprises adriving mechanism30 pivotally connected between thesupport pipe12 and thefirst linkage15 of themain frame10. Thedriving mechanism30 has a lower portion pivotally connected with thesupport pipe12 of themain frame10 and an upper portion pivotally connected with thefirst linkage15 of themain frame10. Preferably, thedriving mechanism30 includes a motor for driving a threaded rod, a hydraulic cylinder or a pneumatic cylinder.
• In operation, referring toFIGS. 4 and 5 with reference toFIGS. 1-3, when theadjusting mechanism40 is operated, the threadedrod42 is driven by theactuator41 and is rotated in theslideway121 of thesupport pipe12 of themain frame10. At this time, the adjustingbar22 of therear frame20 is limited by and cannot be rotated relative to thesupport pipe12 of themain frame10 so that the screw bore23 of the adjustingbar22 of therear frame20 is moved on the threadedrod42 of theadjusting mechanism40 by rotation of the threadedrod42, and the adjustingbar22 of therear frame20 is moved relative to thesupport pipe12 of themain frame10.
• Optionally, when the adjustingbar22 of therear frame20 is moved outward relative to thesupport pipe12 of themain frame10 from the position as shown inFIGS. 1 and 3 to the position as shown inFIGS. 4 and 5, the connectinglever25 of therear frame20 is pulled downward so that thefirst linkage15 of themain frame10 is pulled downward. At the same time, thedriving mechanism30 is operated and retracted simultaneously so that thefirst linkage15 of themain frame10 is pulled downward. In such a manner, thefirst linkage15 of themain frame10 is moved downward and rearward, and thesecond linkage17 of themain frame10 is moved rearward by action of thethird linkage18. Thus, theseat16 of themain frame10 is moved downward and rearward, and thehandlebar171 of themain frame10 is moved rearward as shown inFIGS. 4 and 5, so that a user can operate the exercising bike in a lying posture.
• Alternatively, when the adjustingbar22 of therear frame20 is moved toward thesupport pipe12 of themain frame10 from the position as shown inFIGS. 4 and 5 to the position as shown inFIGS. 1 and 3, the connectinglever25 of therear frame20 is pushed upward so that thefirst linkage15 of themain frame10 is pushed upward. At the same time, thedriving mechanism30 is operated and extended simultaneously so that thefirst linkage15 of themain frame10 is pushed upward. In such a manner, thefirst linkage15 of themain frame10 is moved upward and forward, and thesecond linkage17 of themain frame10 is moved forward by action of thethird linkage18. Thus, theseat16 of themain frame10 is moved upward and forward, and thehandlebar171 of themain frame10 is moved forward as shown inFIGS. 1 and 3, so that a user can operate the exercising bike in a sitting posture.
• Referring toFIG. 6 with reference toFIGS. 1-3, theadjusting mechanism40 is undefined, and thedriving mechanism30 is operated individually. Optionally, thedriving mechanism30 is retracted so that thefirst linkage15 of themain frame10 is pulled downward, and the connectinglever25 of therear frame20 is pushed downward. In such a manner, thesecond linkage17 of themain frame10 is moved rearward by action of thethird linkage18. Thus, theseat16 of themain frame10 is moved downward and rearward, and thehandlebar171 of themain frame10 is moved rearward as shown inFIG. 6, so that a user can operate the exercising bike in a lying posture. Alternatively, thedriving mechanism30 is extended so that thefirst linkage15 of themain frame10 is pushed upward, and the connectinglever25 of therear frame20 is pulled upward. In such a manner, thesecond linkage17 of themain frame10 is moved forward by action of thethird linkage18. Thus, theseat16 of themain frame10 is moved upward and forward, and thehandlebar171 of themain frame10 is moved forward as shown inFIGS. 1 and 3, so that a user can operate the exercising bike in a sitting posture.
• Referring toFIG. 7 with reference toFIGS. 1-3, thedriving mechanism30 is undefined, and theadjusting mechanism40 is operated individually. Optionally, when the adjustingbar22 of therear frame20 is driven by operation of theadjusting mechanism40 and is moved outward relative to thesupport pipe12 of themain frame10 from the position as shown inFIGS. 1 and 3 to the position as shown inFIG. 7, the connectinglever25 of therear frame20 is pulled downward so that thefirst linkage15 of themain frame10 is pulled downward. In such a manner, thefirst linkage15 of themain frame10 is moved downward and rearward, and thesecond linkage17 of themain frame10 is moved rearward by action of thethird linkage18. Thus, theseat16 of themain frame10 is moved downward and rearward, and thehandlebar171 of themain frame10 is moved rearward as shown inFIG. 7, so that a user can operate the exercising bike in a lying posture. Alternatively, when the adjustingbar22 of therear frame20 is driven by operation of theadjusting mechanism40 and is moved toward thesupport pipe12 of themain frame10 from the position as shown inFIG. 7 to the position as shown inFIGS. 1 and 3, the connectinglever25 of therear frame20 is pushed upward so that thefirst linkage15 of themain frame10 is pushed upward. In such a manner, thefirst linkage15 of themain frame10 is moved upward and forward, and thesecond linkage17 of themain frame10 is moved forward by action of thethird linkage18. Thus, theseat16 of themain frame10 is moved upward and forward, and thehandlebar171 of themain frame10 is moved forward as shown inFIGS. 1 and 3, so that a user can operate the exercising bike in a sitting posture.
• Accordingly, the position of theseat16 of themain frame10 can be adjusted so that a user can operate the exercising bike in a sitting or lying posture, thereby enhancing the exercising effect. In addition, theroller24 of therear frame20 is moved in thesupport pipe12 of themain frame10 so that the adjustingbar22 of therear frame20 is moved in thesupport pipe12 of themain frame10 smoothly by guidance of theroller24 and will not produce noise during movement. Further, thedriving mechanism30 and theadjusting mechanism40 are selected individually to decrease the cost of fabrication.
• Although the invention has been explained in relation to its preferred embodiment(s) as mentioned above, it is to be understood that many other possible modifications and variations can be made without departing from the scope of the present invention. It is, therefore, contemplated that the appended claim or claims will cover such modifications and variations that fall within the true scope of the invention.

Claims (17)

1. An exercising bike, comprising:

a main frame; and

a rear frame adjustably connected with the main frame;

wherein the main frame includes:

a support pipe having an inner portion provided with a slideway;

a first linkage pivotally mounted on the support pipe;

a seat mounted on the first linkage to move in concert with the first linkage;

a second linkage pivotally mounted on the support pipe;

a handlebar mounted on the second linkage to move in concert with the second linkage;

a third linkage pivotally connected with the first linkage and the second linkage;

the rear frame includes:

an elongate adjusting bar retractably mounted in the slideway of the support pipe of the main frame;

a connecting lever having a lower end pivotally connected with the adjusting bar and an upper end pivotally connected with the first linkage of the main frame; and

at least one roller rotatably mounted on the adjusting bar and slidably mounted in the slideway of the support pipe of the main frame.

2. The exercising bike ofclaim 1, wherein the exercising bike further comprises an adjusting mechanism mounted on the support pipe of the main frame and connected with the adjusting bar of the rear frame to move the adjusting bar of the rear frame relative to the support pipe of the main frame.

3. The exercising bike ofclaim 2, wherein

the adjusting bar of the rear frame has an inner portion provided with a screw bore;

the adjusting mechanism includes:

a threaded rod rotatably mounted in the slideway of the support pipe of the main frame and screwed into the screw bore of the adjusting bar of the rear frame;

an actuator mounted on the support pipe of the main frame and connected with the threaded rod to rotate the threaded rod relative to the adjusting bar of the rear frame.

4. The exercising bike ofclaim 3, wherein

the screw bore of the adjusting bar of the rear frame is movable on the threaded rod of the adjusting mechanism by rotation of the threaded rod;

the adjusting bar of the rear frame is movable relative to the support pipe of the main frame by rotation of the threaded rod.

5. The exercising bike ofclaim 3, wherein the actuator of the adjusting mechanism consists of a motor and a speed reducer.

6. The exercising bike ofclaim 1, wherein the exercising bike further comprises a driving mechanism pivotally connected between the support pipe and the first linkage of the main frame.

7. The exercising bike ofclaim 6, wherein the driving mechanism has a lower portion pivotally connected with the support pipe of the main frame and an upper portion pivotally connected with the first linkage of the main frame.

8. The exercising bike ofclaim 6, wherein the driving mechanism includes a motor for driving a threaded rod, a hydraulic cylinder or a pneumatic cylinder.

9. The exercising bike ofclaim 1, wherein the main frame further includes:

a damping wheel unit mounted on the support pipe;

a front stand mounted on the support pipe;

a mounting bracket mounted on the support pipe to support the first linkage, the second linkage and the damping wheel unit.

10. The exercising bike ofclaim 9, wherein

the support pipe of the main frame is arranged in a transverse manner;

the front stand of the main frame is mounted on an end portion of the support pipe and is arranged in a transverse manner;

the damping wheel unit of the main frame is provided with two cranks and two pedals.

11. The exercising bike ofclaim 9, wherein the first linkage of the main frame has a lower end pivotally connected with the mounting bracket and an upper end pivotally connected with the seat.

12. The exercising bike ofclaim 9, wherein the second linkage of the main frame has a lower end pivotally connected with the mounting bracket and an upper end pivotally connected with the handlebar.

13. The exercising bike ofclaim 1, wherein the seat of the main frame is provided with an armrest.

14. The exercising bike ofclaim 1, wherein

the rear frame further includes a rear stand mounted on the adjusting bar;

the rear stand of the rear frame is mounted on the second end of the adjusting bar and is arranged in a transverse manner.

15. The exercising bike ofclaim 1, wherein

the adjusting bar of the rear frame has a first end movably mounted in the slideway of the support pipe of the main frame and a second end protruding outward from the slideway of the support pipe of the main frame;

the connecting lever of the rear frame is pivotally connected with the second end of the adjusting bar.

16. The exercising bike ofclaim 1, wherein the connecting lever of the rear frame has an arc-shaped profile.

17. The exercising bike ofclaim 3, wherein

the slideway of the support pipe of the main frame has a rectangular cross-sectional profile;

the adjusting bar of the rear frame has a rectangular cross-sectional profile.

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