OSCILLATION PLATFORM

Abstract

An oscillation platform includes a base having four first pivot holders thereof and a swinging bar respectively pivotally connected to each of the first pivot holders, a motor, a transmission shaft pivotally mounted in the base and rotatable by the motor and having an eccentric rod at each of the two ends, two first links respectively pivotally coupled between the eccentric rods of the transmission shaft and two swinging bars, two second links respectively pivotally coupled between the eccentric rods of the transmission shaft and the other two swinging bars, and a platform, which has two second pivot holders, two connection members respectively pivotally coupled to the second links and two third links respectively pivotally coupled between the second pivot holders and the first links.

Description

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to exercising apparatus and more particularly, to an oscillation platform for supporting a person in a standing or lying position during exercise.

2. Description of the Related Art

There are many motion platforms commercially available for supporting a person in a standing or lying position. Some of these motion platforms provide a horizontal oscillation motion during operation. The other motion platforms provide a vertical oscillation motion during operation. Either of the horizontal oscillation type or vertical oscillation type, these conventional motion platforms provide an oscillation motion in one dimension only.

SUMMARY OF THE INVENTION

The present invention has been accomplished under the circumstances in view. It is the main object of the present invention to provide an oscillation platform, which provides a two-dimensional motion during operation.

To achieve this and other objects of the present invention, an oscillation platform comprises a base for placing on a plane, which has four first pivot holders thereof and a swinging bar respectively pivotally connected to each of the first pivot holders; a motor, which is mounted in the base and adapted to provide a rotary driving force; a transmission shaft, which is pivotally mounted in the base and coupled to and rotatable by the motor, having an eccentric rod at each of two distal ends thereof; two first links respectively pivotally coupled between the eccentric rods of the transmission shaft and the free ends of two swinging bars of the base; two second links respectively pivotally coupled between the eccentric rods of the transmission shaft and the free ends of the other two swinging bars of the base; and a platform, which has two second pivot holders, two connection members respectively pivotally coupled to the second links and two third links respectively pivotally coupled between the second pivot holders and the first links.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of an oscillation platform in accordance with a first embodiment of the present invention where the platform is not shown.

FIG. 2 is a side view of the oscillation platform in accordance with the first embodiment of the present invention.

FIGS. 2A-2D are schematic drawings of the first embodiment of the present invention, showing the motion track of the oscillation platform during operation.

FIG. 3 is a side view of an oscillation platform in accordance with a second embodiment of the present invention.

FIGS. 3A-3D are schematic drawings of the second embodiment of the present invention, showing the motion track of the oscillation platform during operation.

FIG. 4 is a side view of an oscillation platform in accordance with a third embodiment of the present invention.

FIGS. 4A-4D are schematic drawings of the third embodiment of the present invention, showing the motion track of the oscillation platform during operation.

FIG. 5 is a side view of an oscillation platform in accordance with a fourth embodiment of the present invention.

FIGS. 5A-5D are schematic drawings of the fourth embodiment of the present invention, showing the motion track of the oscillation platform during operation.

FIG. 6 is a schematic drawing of the present invention, showing a cushion pad attached to the top side of the platform and a handrail fixedly provided at one side of the platform.

FIG. 7 is an exploded view of the oscillation platform in accordance with the first embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

Referring to FIGS. 1, 2 and 7, an oscillation platform in accordance with a first embodiment of the present invention is shown, the oscillation platform comprising:

a base 10 for placing on a plane, which has four first pivot holders 11 thereof and a swinging bar 12 respectively pivotally connected to each of the first pivot holders 11;

a motor 20, which is mounted in the base 10 and adapted to provide a rotary driving force;

a transmission shaft 21, which is pivotally mounted in the base 10 and has an eccentric rod 22 at each of the two distal ends thereof;

a reduction device 30, which is coupled between the motor 20 and the transmission shaft 21 and adapted for transferring the rotary driving force of the motor 20 to the transmission shaft 21 to rotate the transmission shaft 21;

two first links 40 respectively pivotally coupled between the eccentric rods 22 of the transmission shaft 21 and the free ends of two swinging bars 12 of the base 10;

two second links 41 respectively pivotally coupled between the eccentric rods 22 of the transmission shaft 21 and the free ends of the other two swinging bars 12 of the base 10; and

a platform 50, which has two second pivot holders 51, two connection members 52 respectively pivotally coupled to the second links 41, and two third links 53 respectively pivotally coupled between the second pivot holders 51 and the first links 40.

Further, a speed reducing motor may be used to substitute for the combination of the motor 20 and the reduction device 30.

Further, the coupling positions between the third links 53 and the first links 40 and the coupling positions between the first links 40 and the eccentric rods 22 are respectively disposed at two opposite sides relative to the coupling positions between the swinging bars 12 and the first links 40; the coupling positions between the connection members 52 and the second links 41 and the coupling positions between the second links 41 and the eccentric rods 22 are respectively disposed at two opposite sides relative to the coupling positions between the swinging bars 12 and the second inks 41.

During the operation of the oscillation platform in accordance with the first embodiment of the present invention, the motor 20 drives the reduction device 30 to rotate the transmission shaft 21, causing the eccentric rods 22 to move the first links 40 and the second links 41 back and forth, and therefore the swinging bars 12 are biased back and forth, and at the same time the platform 50 is moved back and forth subject to the swinging motion of the first links 40 and the second links 41. When the eccentric rods 22 are moved along a circular path, the platform 50 is moved leftwards and rightwards alternatively along a smoothly arched path subject to the same swinging motion of the swinging bars 12 and moved upwards and downwards subject to the motion of the first links 40 and the second links 41. Thus, when the platform 50 is oscillated, the two coupling ends of the platform 50 are moved subject to the motion track shown in FIGS. 2A-2D, so that the platform 50 provides a two-dimensional motion in horizontal and vertical directions.

FIG. 3 illustrates an oscillation platform in accordance with a second embodiment of the present invention. This second embodiment is substantially similar to the aforesaid first embodiment with the exception that the coupling positions between the third links 53 and the first links 40 and the coupling positions between the first links 40 and the eccentric rods 22 are respectively disposed at the same side relative to the coupling positions between the swinging bars 12 and the first links 40; the coupling positions between the connection members 52 and the second links 41 and the coupling positions between the second links 41 and the eccentric rods 22 are respectively disposed at the same side relative to the coupling positions between the swinging bars 12 and the second inks 41. During the operation of the oscillation platform in accordance with the second embodiment of the present invention, the motor 20 drives the reduction device 30 to rotate the transmission shaft 21, causing the eccentric rods 22 to move the platform 50 and the two third links 53 and the two connection members 52. Thus, when the platform 50 is oscillated, the two coupling ends of the platform 50 are moved subject to the motion track shown in FIGS. 3A-3D, and therefore the platform 50 provides a two-dimensional motion in horizontal and vertical directions.

FIG. 4 illustrates an oscillation platform in accordance with a third embodiment of the present invention. This third embodiment is substantially similar to the aforesaid first embodiment with the exception that the coupling positions between the second pivot holders 51 and the first links 40 are same as the coupling positions between the swinging bars 12 and the first links 40. The coupling positions between connection members 52 and the second links 41 are same as the coupling positions between the swinging bars 12 and the second links 41. During rotation of the eccentric rods 22, the first links 40 and second links 41 are forced by the eccentric rods 22 to swing the swinging bars 12, causing the platform 50 to be oscillated back and forth subject to the swinging motion of the swinging bars 12. According to this third embodiment, the platform 50 and the two third links 53 and the two connection members 52 are moved subject to the motion track shown in FIGS. 4A-4D. Thus, the oscillation platform provides a two-dimensional motion in horizontal and vertical directions.

FIG. 5 illustrates an oscillation platform in accordance with a fourth embodiment of the present invention. This fourth embodiment is substantially similar to the aforesaid first embodiment with the exception that the coupling positions between the third links 53 and the first links 40 and the coupling positions between the first links 40 and the eccentric rods 22 are respectively disposed at two opposite relative to the coupling positions between the swinging bars 12 and the first links 40; the coupling positions between the connection members 52 and the second links 41 and the coupling positions between the second links 41 and the eccentric rods 22 are respectively disposed at the same side sides relative to the coupling positions between the swinging bars 12 and the second inks 41. During operation, the oscillation platform is moved subject to the motion track shown in FIGS. 5A-5D, i.e., when one side of the platform 50 is moved upwards, the other side of the platform 50 is moved downwards. Thus, the platform 50 is alternatively tilted up and down when moved horizontally back and forth, providing a two-dimensional motion. Further, it is to be understood that the coupling positions between the two third links 53 and the two connection members 52 can be exchanged, i.e., the coupling positions between the third links 53 and the first links 40 and the coupling positions between the first links 40 and the eccentric rods 22 are disposed at the same sides relative to the coupling positions between the swinging bars 12 and the first inks 40, and the coupling positions between the connection members 52 and the second links 41 and the coupling positions between the second links 41 and the eccentric rods 22 are respectively disposed at two opposite side relative to the coupling positions between the swinging bars 12 and the second inks 41, achieving the same effects.

Referring to FIG. 6, the platform 50 may be attached with a cushion pad 60 for enabling the user to sit or lie thereon comfortably, and/or provided with a handrail 61 for holding by the user. Adding the cushion pad 60 and/or the handrail 61 does not affect the functioning of the oscillation platform.

Although particular embodiments of the invention have been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the invention. Accordingly, the invention is not to be limited except as by the appended claims.

Claims

1. An oscillation platform, comprising:

a base for placing on a plane, said base having four first pivot holders thereof and four swinging bars respectively pivotally connected to said first pivot holders;

a motor mounted in said base and adapted to provide a rotary driving force;

a transmission shaft pivotally mounted in said base and coupled to and rotatable by said motor, said transmission shaft having an eccentric rod at each of two distal ends thereof;

two first links respectively pivotally coupled between said eccentric rods of said transmission shaft and one end of each of two said swinging bars of said base opposite to said first pivot holders;

two second links respectively pivotally coupled between the eccentric rods of said transmission shaft and one end of each of the other two said swinging bars of said base opposite to said first pivot holders;

a platform, said platform comprising two second pivot holders, two connection members respectively pivotally coupled to said second links, and two third links respectively pivotally coupled between said second pivot holders and said first links.

2. The oscillation platform as claimed in claim 1, wherein the coupling positions between said third links and said first links and the coupling positions between said first links and said eccentric rods are respectively disposed at two opposite sides relative to the coupling positions between said swinging bars and said first links; the coupling positions between said connection members and said second links and the coupling positions between said second links and said eccentric rods are respectively disposed at two opposite sides relative to the coupling positions between said swinging bars and said second inks.

3. The oscillation platform as claimed in claim 1, wherein the coupling positions between said third links and said first links and the coupling positions between said first links and said eccentric rods are respectively disposed at the same side relative to the coupling positions between said swinging bars and said first links; the coupling positions between said connection members and said second links and the coupling positions between said second links and said eccentric rods are respectively disposed at the same side relative to the coupling positions between said swinging bars and said second inks.

4. The oscillation platform as claimed in claim 1, wherein the coupling positions between the second pivot holders and the first links are same as the coupling positions between the swinging bars and the first links and the coupling positions between connection members and the second links are same as the coupling positions between the swinging bars and the second links.

5. The oscillation platform as claimed in claim 1, wherein the coupling positions between said third links and said first links and the coupling positions between said first links and said eccentric rods are respectively disposed at two opposite sides relative to the coupling positions between said swinging bars and said first links; the coupling positions between said connection members and said second links and the coupling positions between said second links and said eccentric rods are respectively disposed at the same side relative to the coupling positions between said swinging bars and said second inks.

6. The oscillation platform as claimed in claim 1, further comprising a cushion pad supported on said platform.

7. The oscillation platform as claimed in claim 1, further comprising a handrail mounted on said platform.

8. The oscillation platform as claimed in claim 1, as claimed in claim 1, wherein said motor is a speed reducing motor.

9. The oscillation platform as claimed in claim 1, further comprising a reduction device coupled between said motor and said transmission shaft and adapted for transferring the rotary driving force of said motor to said transmission shaft to rotate said transmission shaft.