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Balance device having height adjustable functionBalance device having height adjustable function description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20080064578, Balance device having height adjustable function. Brief Patent Description - Full Patent Description - Patent Application Claims
BACKGROUND OF THE INVENTION [0001]1. Field of the Invention [0002]The present invention relates to a balance device and, more particularly, to a balance device on which a user can step to practice a balance skill or to achieve an amusement. [0003]2. Description of the Related Art [0004]A conventional balance device 30 in accordance with the prior art shown in FIG. 8 comprises a balance board 31 and an arcuate rocking body 32 mounted on the bottom of the balance board 31. Preferably, the balance board 31 and the rocking body 32 are formed integrally. In operation, the rocking body 32 is rested on the ground to perform a rocking movement so that a user can step on the balance board 31 to practice a balance skill or to achieve an amusement by rocking of the rocking body 32. However, the rocking body 32 has a fixed size so that the height of the balance board 31 is fixed and cannot be adjusted according to users' different statures and requirements, thereby decreasing the versatility of the conventional balance device 30. BRIEF SUMMARY OF THE INVENTION [0005]In accordance with the present invention, there is provided a balance device, comprising an adjusting seat, and a balance board detachably mounted on the adjusting seat. The adjusting seat has an open upper portion having an inside formed with a mounting hole and a closed lower portion formed with a protruding rocking portion. The upper portion of the adjusting seat has a peripheral wall formed with a plurality of elongated locking grooves. The locking grooves of the adjusting seat have different lengths. The balance board has a bottom formed with a protruding block detachably inserted into the mounting hole of the adjusting seat and a plurality of locking ribs each detachably inserted into one of the locking grooves of the adjusting seat. [0006]The primary objective of the present invention is to provide a balance device having a height adjustable function to change a balance effect. [0007]Another objective of the present invention is to provide a balance device, wherein the height of the balance board relative to the adjusting seat is adjustable so that the balance board is located at different heights to facilitate a user practicing the balance skill at different heights. [0008]A further objective of the present invention is to provide a balance device, wherein a user can step on the balance board to practice a balance skill or to achieve an amusement by rocking of the rocking portion of the adjusting seat when the balance board is combined with the adjusting seat or by rocking of the rocking section of the protruding block of the balance board when the adjusting seat is removed from the balance board so as to enhance the versatility of the balance device. [0009]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) [0010]FIG. 1 is a perspective view of a balance device in accordance with the preferred embodiment of the present invention. [0011]FIG. 2 is an exploded perspective view of the balance device as shown in FIG. 1. [0012]FIG. 3 is a front view of the balance device as shown in FIG. 1. [0013]FIG. 4 is an exploded view of the balance device as shown in FIG. 3. [0014]FIG. 5 is another perspective view of a balance device in accordance with the preferred embodiment of the present invention. [0015]FIG. 6 is a front view of the balance device as shown in FIG. 5. [0016]FIG. 7 is an exploded perspective view of a balance device in accordance with another preferred embodiment of the present invention. [0017]FIG. 8 is a front cross-sectional view of a conventional balance device in accordance with the prior art. DETAILED DESCRIPTION OF THE INVENTION [0018]Referring to the drawings and initially to FIGS. 1-4, a balance device in accordance with the preferred embodiment of the present invention comprises an adjusting seat 20, and a balance board 10 detachably mounted on the adjusting seat 20. [0019]The adjusting seat 20 has a substantially cylindrical cross-sectional profile. The adjusting seat 20 has an open upper portion having an inside formed with a mounting hole 21 and a closed lower portion formed with a protruding rocking portion 22. The rocking portion 22 of the adjusting seat 20 is substantially dome-shaped and extends outwardly from the lower portion of the adjusting seat 20. The upper portion of the adjusting seat 20 has a peripheral wall formed with a plurality of elongated locking grooves 23, 24 and 25 each connected to the mounting hole 21. The locking grooves 23, 24 and 25 of the adjusting seat 20 have different lengths. [0020]The balance board 10 has a bottom formed with a protruding block 11 detachably inserted into the mounting hole 21 of the adjusting seat 20 and a plurality of locking ribs 13 each detachably inserted into one of the locking grooves 23, 24 and 25 of the adjusting seat 20. The protruding block 11 of the balance board 10 has a bottom formed with a protruding rocking section 12. The rocking section 12 of the protruding block 11 of the balance board 10 is substantially dome-shaped and extends outwardly from the bottom of the protruding block 11 of the balance board 10. The protruding block 11 of the balance board 10 is located at a central portion of the balance board 10. The protruding block 11 of the balance board 10 protrudes outwardly from the locking ribs 13 and has a bottom located at height smaller than that of a bottom of each of the locking ribs 13. The locking ribs 13 of the balance board 10 are arranged on a periphery of the protruding block 11 to surround the protruding block 11 so as to reinforce the strength of the balance board 10. The locking ribs 13 of the balance board 10 protrude outwardly from the periphery of the protruding block 11 in a radiating manner. Each of the locking ribs 13 of the balance board 10 has the same shape and is located at the same height. Continue reading about Balance device having height adjustable function... 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