WEIGHT ADJUSTABLE FITNESS TOOL

BACKGROUND OF THE INVENTION

Fields of the Invention

[0001]The present invention relates to the technical field of fitness tools and, particularly to, weight adjustable fitness tools.

Descriptions of Related Art

[0002]For conventional fitness equipment, such as dumbbells, the combination of a handle and weight blocks is achieved typically by inserting a locking rod through multiple weight blocks and tightening nuts at both ends of the handle. To adjust the weight, the locking rod is unscrewed from the handle, and weight blocks are either added or removed. This conventional approach is inconvenient for weight adjustments of dumbbells.

SUMMARY OF THE INVENTION

[0003]The primary objective of the present invention is to address the drawbacks of conventional equipment and provide a weight adjustable fitness tool that allows for quick and simple weight adjustments.

BRIEF DESCRIPTION OF THE DRAWINGS

[0008]FIG. 1 is a perspective schematic view for the first embodiment of the present invention.

[0009]FIG. 2 is a cross-sectional schematic view taken along line II-II of FIG. 1 for the first embodiment of the present invention.

[0010]FIG. 3 is an operation view of the control component for the first embodiment of the present invention.

[0011]FIG. 4 is a perspective schematic view illustrating the first and second interfaces of the weight block for the first embodiment of the present invention.

[0012]FIG. 5 is a cross-sectional schematic view taken along line V-V of FIG. 1 for the first embodiment of the present invention.

[0013]FIG. 6 is an operation view of FIG. 5 for the first embodiment of the present invention.

[0014]FIG. 7 is a perspective schematic view illustrating the placement of the first embodiment of the present invention on the base.

[0015]FIG. 8 is a perspective schematic view illustrating weight adjustment operation (I) for the first embodiment of the present invention.

[0016]FIG. 9 is a perspective schematic view illustrating weight adjustment operation (II) for the first embodiment of the present invention.

[0017]FIG. 10 is a perspective schematic view illustrating weight adjustment operation (III) for the first embodiment of the present invention.

[0018]FIG. 11 is a perspective schematic view for the second embodiment of the present invention.

[0019]FIG. 12 is a perspective schematic view illustrating the first and second interfaces of the weight block for the second embodiment of the present invention.

[0020]FIG. 13 is a cross-sectional schematic view taken along line XIII-XIII of FIG. 11 for the second embodiment of the present invention.

[0021]FIG. 14 is an operation view of FIG. 13 for the second embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

[0022]Referring to FIGS. 1 through 10, the weight adjustable fitness tool in accordance with the first embodiment of the present invention includes a body 1, having a handlebar 10 and weight-loading portions 11 connected at both ends of the handlebar 10. Two channels 100 are provided axially inside the handlebar 10, as shown in FIG. 2. An external surface of the weight-loading portion 11 is provided with a first connection groove 110 that has a first recessed connection surface 111 located adjacent to a bottom side of the weight-loading portion 11. Each of the weight-loading portions 11 is sectioned downward from its top edge to form a first receiving slot 112 and a first through-hole 113, which communicate with each other. The first receiving slot 112 has two slot walls each with a first barrier edge 114 and a first protrusion 115, while the first through-hole 113 communicates with the two channels 100.

[0023]The weight adjustable fitness tool in accordance with the first embodiment of the present invention further includes control components 2, each having two transverse rods 20 that penetrate through the two channels 100 of the handlebar 10, respectively, a longitudinal rod 21 fixedly connected to an end of each transverse rod 20 and sleeved with an elastic member 22, and a locking member 23 movably positioned around the longitudinal rod 21. The position where the transverse rods 20 are fixedly connected to the longitudinal rod 21 corresponds to the first through-hole 113. The locking member 23 is accommodated in the first receiving slot 112 of the weight-loading portion 11 and has two sides each with a second barrier edge 230 and a second recess 231 that correspond to the first barrier edge 114 and the first protrusion 115, respectively. There is a limiting space 232 between the interior of the locking member 23 and the longitudinal rod 21. The elastic member 22 sleeved around the longitudinal rod 21 is constrained in the limiting space 232. When the locking member 23 of the control component 2 is placed in the first receiving slot 112 of the weight-loading portion 11, the locking member 23 and the first receiving slot 112 are configured to form a locked state, in which the transverse rods 20 of the control component 2 are prevented from moving left or right within the two channels 100 of the handlebar 10.

[0024]The weight adjustable fitness tool in accordance with the first embodiment of the present invention further includes a plurality of weight blocks 3, each having a second receiving slot 30 and a second through-hole 31 corresponding to the first receiving slot 112 and the first through-hole 113 of the weight-loading portion 11, respectively. The second receiving slot 30 has two slot walls each with a third barrier edge 300 and a third protrusion 301 that correspond to first barrier edge 114 and the first protrusion 115, respectively, on the two slot walls of the first receiving slot 112. The second through-hole 31 communicates with the two channels 100 inside the handlebar 10. Each of the weight blocks 3 has a first interface 32 and a second interface 33. The first interface 32 and the second interface 33 have a second connection part 320 and a second connection groove 330, respectively. The second connection groove 330 has a second recessed connection surface 331 located adjacent to a bottom side of the weight block 3. The second connection part 320 for anyone of the weight blocks 3 can be assembled into the first connection groove 110 of the weight-loading portion 11 or the second connection groove 330 for anyone of the weight blocks 3. During assembly, the first recessed connection surface 111 and the second recessed connection surface 331, provided in the first connection groove 110 of the weight-loading portion 11 and the second connection groove 330 of the weight block 3, respectively, facilitate smooth assembly even if the weight-loading portion 11 and the weight block 3 are slightly inclined.

[0025]The weight adjustable fitness tool in accordance with the first embodiment of the present invention further includes a base 4 for placement of the body 1 and the plurality of weight blocks 3.

[0026]In operation, when the locking member 23 of the control component 2 is placed in the first receiving slot 112 of the weight-loading portion 11, the second barrier edge 230 and the first barrier edge 114 block each other, resulting in a locked state, while the second recess 231 and the first protrusion 115 engages with each other, creating another form of lock connection. This prevents the two transverse rods 20 of the control component 2 from moving left or right, as shown in FIG. 5. When the locking member 23 is lifted from the first receiving slot 112 of the weight-loading portion 11 to a certain height, the longitudinal rod 21 of the control component 2 remains stationary, causing the elastic member 22 to be elastically compressed due to the upward movement of the limiting space 232 of the locking member 23 and releasing the locked relationship between the second barrier edge 230 and the first barrier edge 114 and between the second recess 231 and the first protrusion 115, as shown in FIG. 6. At this point, the two transverse rods 20 can be moved left or right for adjustment. Once the desired weight blocks 3 are selected, the locking member 23 is released and the elastic member 22 is decompressed due to downward movement of the limiting space 232 of the locking member 23. This causes the locking member 23 to automatically move downward into the first receiving slot 112, where the third barrier edge 300 and the second barrier edge 230 block each other and the third protrusion 301 and the second recess 231 engage with each other. Accordingly, the locking member 23 and the first receiving slot 112 return to the locked state, and simultaneously, the position where the transverse rods 20 and the longitudinal rod 21 of the control component 2 are fixedly connected corresponds to the second through-hole(s) 31 of the selected weight block(s) 3. Through the aforementioned operating approach, the fitness tool of the present invention allows for quick weight adjustment.

[0027]Further, referring to FIGS. 11 through 14, the weight adjustable fitness tool in accordance with the second embodiment of the present invention includes a body, having a handlebar 10 and weight-loading portions 11 connected at both ends of the handlebar 10. Two channels 100 are provided axially inside the handlebar 10. An external surface of the weight-loading portion 11 is provided with a first connection groove 110 that has a first recessed connection surface 111 located adjacent to a bottom side of the weight-loading portion 11. Each of the weight-loading portions 11 is sectioned downward from its top edge to form a first receiving slot 112 and a first through-hole 113, which communicate with each other. The first receiving slot 112 has two slot walls each with a first hook part 116 and a first hook opening 117, respectively, while the first through-hole 113 communicates with the two channels 100.

[0028]The weight adjustable fitness tool in accordance with the second embodiment of the present invention further includes control components 2, each having two transverse rods 20 that penetrate through the two channels 100 of the handlebar 10, respectively, a longitudinal rod 21 fixedly connected to an end of each transverse rod 20, and a locking member 23 movably positioned around the longitudinal rod 21. The position where the transverse rods 20 are fixedly connected to the longitudinal rod 21 corresponds to the first through-hole 113. The locking member 23 is accommodated in the first receiving slot 112 of the weight-loading portion 11 and has two sides each with a second hook part 233 and a third hook part 234 that correspond to the first hook part 116 and the first hook opening 117, respectively. A limiting space 232 is defined between the interior of the locking member 23 and the longitudinal rod 21, allowing for the placement of an elastic member 22 therein. When the locking member 23 of the control component 2 is placed in the first receiving slot 112 of the weight-loading portion 11, the locking member 23 and the first receiving slot 112 are configured to form a locked state, in which the transverse rods 20 of the control component 2 are prevented from moving left or right within the two channels 100 of the handlebar 10.

[0029]The weight adjustable fitness tool in accordance with the second embodiment of the present invention further includes a plurality of weight blocks 3, each having a second receiving slot 30 and a second through-hole 31 corresponding to the first receiving slot 112 and the first through-hole 113 of the weight-loading portion 11, respectively. The second receiving slot 30 has two slot walls each with a fourth hook part 302 and a second hook opening 303 that correspond to the first hook part 116 and the first hook opening 117, respectively, on the two slot walls of the first receiving slot 112. The second through-hole 31 communicates with the two channels 100 inside the handlebar 10. Each of the weight blocks 3 has a first interface 32 and a second interface 33. The first interface 32 and the second interface 33 have a second connection part 320 and a second connection groove 330, respectively. The second connection groove 33 has a second recessed connection surface 331 located adjacent to a bottom side of the weight block 3. The second connection part 320 for anyone of the weight blocks 3 can be assembled into the first connection groove 110 of the weight-loading portion 11 or the second connection groove 330 for anyone of the weight blocks 3. During assembly, the first recessed connection surface 111 and the second recessed connection surface 331, provided in the first connection groove 110 of the weight-loading portion 11 and the second connection groove 330 of the weight block 3, respectively, facilitate smooth assembly even if the weight-loading portion 11 and the weight block 3 are slightly inclined.

[0030]The weight adjustable fitness tool in accordance with the second embodiment of the present invention further includes a base 4 for placement of the body 1 and the plurality of weight blocks 3.

[0031]In operation, when the locking member 23 in the first receiving slot 112 of the weight-loading portion 11 is pushed downward to a certain depth, the longitudinal rod 21 of the control component 2 remains stationary, causing the elastic member 22 to be elastically compressed due to the downward movement of the limiting space 232 of the locking member 23 and releasing the locked relationship between the second hook part 233 and the first hook part 116 and between the third hook part 234 and the first hook opening 117, as shown in FIG. 14. At this point, the two transverse rods 20 can be moved left or right for adjustment. Once the desired weight blocks 3 are selected, the locking member 23 is released and the elastic member 22 is decompressed due to upward movement of the limiting space 232 of the locking member 23. This causes the locking member 23 to automatically move upward into the first receiving slot 112, resulting in engagement between the second hook part 233 and the first hook part 116 and between the third hook part 234 and the first hook opening 117. Accordingly, the locking member 23 and the first receiving slot 112 return to the locked state, and simultaneously, the position where the transverse rods 20 and the longitudinal rod 21 of the control component 2 are fixedly connected corresponds to the second through-hole(s) 31 of the selected weight block(s) 3. Through the aforementioned operating approach, the fitness tool of the present invention allows for quick weight adjustment.