A ball chair may comprise a chair frame, a ball body and an adjusting unit. The chair frame has a connecting base and a legs base, and a supporting column formed therebetween is configured to achieve a telescopic action thereby adjusting a height of the ball chair. The connecting base is formed in a concave shape to form a housing space therein, and an annular frame is formed at an upper end of the connecting base. The ball body is configured to be coupled on the connecting base of the chair frame, and the annular frame is configured to couple with an outer periphery of the ball body thereby limiting a position thereof. As a result, the ball chair is suitable for different statures of users and enables the users to sit thereon for training or rehabilitation.
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0. 10. A ball chair comprising:
a frame defining a concave space configured to accept a ball body, the frame comprising a connecting base, a central region of a bottom portion of the connecting base comprising a first connecting slot with an inner wall having longitudinal extents from a first end to a second end;
a legs base;
a telescopically adjustable supporting column disposed between the connecting base and the legs base to adjustably change a distance between the connecting base and the legs base, the supporting column comprising an abutting portion for adjusting a height of the supporting column, an upper end of the supporting column pivotally engaged with the first connecting slot;
a metal ring coupled with the inner wall of the first connecting slot and entirely disposed between the first end and the second end of the first connecting slot, the supporting column pivotally passing through the metal ring; and
an adjusting unit coupled to the connecting base and configured to engage the abutting portion of the supporting column to selectively telescopically adjust the height of the supporting column.
1. A ball chair comprising:
a chair frame having a connecting base and a legs base, and a supporting column which is formed therebetween and configured to achieve a telescopic action; the connecting base formed in a concave shape to form a housing space therein, and an annular frame formed at an upper end of the connecting base; and
a ball body configured to couple on the connecting base of the chair frame, and the annular frame configured to couple with an outer periphery of the ball body to limit a position thereof,
wherein a first connecting slot is formed at a central bottom portion of the connecting base, the first connecting slot having an inner wall with longitudinal extents from a first end to a second end, and the first connecting slot is pivotally connected to an upper end of the supporting column; a metal ring is coupled with an the inner wall of the first connecting slot and entirely disposed between the first end and the second end of the first connecting slot, and at least an opening formed at a bottom portion of the connecting base adjacent to the first connecting slot is configured to enable an adjusting unit to install therein; and the supporting column has an abutting portion formed at the upper end thereof, and the adjusting unit is configured to press the abutting portion of the supporting column to achieve the telescopic action.
2. The ball chair of
3. The ball chair of
4. The ball chair of
5. The ball chair of
6. The ball chair of
7. The ball chair of
8. The ball chair of
9. The ball chair of
0. 11. The ball chair of claim 10 wherein the connecting base is concave and an annular frame portion is coupled to an upper end of the connecting base and configured to couple with an outer periphery of the ball body.
0. 12. The ball chair of claim 11, wherein the annular frame portion is connected to the connecting base by way of a plurality of slots and respective engaging members that engage with the slots.
0. 13. The ball chair of claim 10 wherein an opening is defined in the connecting base, the adjusting unit passing through the opening, the adjusting unit pivotally engaging with the connecting base, and an end of the adjusting unit engages the abutting portion of the supporting column.
0. 14. The ball chair of claim 10, wherein:
at least two openings are symmetrically defined in the connecting base;
the adjusting unit comprises an annular loop, and at least two connecting rods are coupled to the annular loop and respectively pass through the at least two openings;
a pressing board is disposed in the connecting base to engage the abutting portion of the supporting column and is coupled to the at least two connecting rods; and
a cover is coupled to the connecting base, an end of each connecting rod sandwiched between the pressing board and the cover.
0. 15. The ball chair of claim 10 further comprising a bottom shell coupled to the connecting base, a bottom portion of the bottom shell comprising a second connecting slot in communication with the first connecting slot of the connecting base.
0. 16. The ball chair of claim 10 further comprising a cap, the cap configured to cover at least a portion of the ball body, the cap removably couped to the frame.
0. 17. The ball chair of claim 16, wherein:
the frame comprises a plurality hook members; and
the cap comprises a plurality hook rings respectively configured to engage with the hook members.
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This application is a reissue application of U.S. Pat. No. 10,279,211, issued May 7, 2019, from U.S. patent application Ser. No. 15/438,780, filed on Feb. 22, 2017, the contents of which are incorporated herein by reference.
The present invention relates to a ball chair more particularly to a ball chair suitable for different statures of users.
Generally, a conventional ball chair comprises a chair base, and a ball body is connected to the chair base. Wherein the chair base formed integrally has a ring support, and a plurality of chair legs respectively protrude from the ring support. Moreover, the ball body is installed on the ring support, and a diameter of the ball body is larger than the ring support, thus completing the assembly of the ball chair which is configured to correct sitting posture or achieve physical training for a user.
However, the conventional ball chair is disadvantageous because: (i) when used, a height of the integrated conventional ball chair cannot be adjusted according to a user's statures, thus lowering the practicability thereof; and (ii) the ball body is only supported by the ring support, when a downward pressure is gradually increased, the ball body is configured to be deformed and detached from the ring support, thus increasing the risk of use. Therefore, there remains a need for a new and improved design for a ball chair to overcome the problems presented above.
The present invention provides a ball chair which comprises a chair frame, a ball body and an adjusting unit. The chair frame has a connecting base and a legs base, and a supporting column formed therebetween is configured to achieve a telescopic action thereby adjusting a height of the ball chair. Moreover, the supporting column has an abutting portion formed at an upper end thereof, and the adjusting unit pivotally connected to the connecting base is configured to abut against the abutting portion thereby achieving the telescopic action. The connecting base is formed in a concave shape to form a housing space therein, and an annular frame is formed at an upper end of the connecting base. The ball body is configured to be coupled on the connecting base of the chair frame, and, by coupling with an outer periphery of the ball body, the annular frame is configured to limit a position of the ball body.
Comparing with conventional ball chair, the present invention is advantageous because: (i) the chair frame has the connecting base and the legs base, and the supporting column is formed therebetween to achieve telescopic action, thus enabling the ball chair to adjust the height thereof according to different statures of users; (ii) the ball chair of the present invention is easy for assembly or disassembly, which is convenient for packaging, carry and storage, and reduces the costs of shipping and manufacturing; and (iii) the connecting base is cooperated with the annular frame to limit the position of the ball body, which improves the safety of use and stability of the ball chair when a user is sitting thereon.
The detailed description set forth below is intended as a description of the presently exemplary device provided in accordance with aspects of the present invention and is not intended to represent the only forms in which the present invention may be prepared or utilized. It is to be understood, rather, that the same or equivalent functions and components may be accomplished by different embodiments that are also intended to be encompassed within the spirit and scope of the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood to one of ordinary skill in the art to which this invention belongs. Although any methods, devices and materials similar or equivalent to those described can be used in the practice or testing of the invention, the exemplary methods, devices and materials are now described.
All publications mentioned are incorporated by reference for the purpose of describing and disclosing, for example, the designs and methodologies that are described in the publications that might be used in connection with the presently described invention. The publications listed or discussed above, below and throughout the text are provided solely for their disclosure prior to the filing date of the present application. Nothing herein is to be construed as an admission that the inventors are not entitled to antedate such disclosure by virtue of prior invention.
In order to further understand the goal, characteristics and effect of the present invention, a number of embodiments along with the drawings are illustrated as following:
Referring to
In actual application, referring to
In another embodiment, referring to
In still another embodiment, referring to
Comparing with conventional ball chair, the present invention is advantageous because: (i) the chair frame (10) has the connecting base (11) and the legs base (12), and the supporting column (13) is formed therebetween to achieve telescopic action, thus enabling the ball chair to adjust the height thereof according to different statures of users; (ii) the ball chair of the present invention is easy for assembly or disassembly, which is convenient for packaging, carry and storage, and reduces the costs of shipping and manufacturing; and (iii) the connecting base (11) is cooperated with the annular frame (14) to limit the position of the ball body (20), which improves the safety of use and stability of the ball chair when a user is sitting thereon.
Having described the invention by the description and illustrations above, it should be understood that these are exemplary of the invention and are not to be considered as limiting. Accordingly, the invention is not to be considered as limited by the foregoing description, but includes any equivalents.
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