Adjustable dumbbell system

Abstract

An adjustable dumbbell system includes a base, a plurality of weight plates arranged at both ends of the base, and a handle assembly disposed between the two ends of the base. The handle assembly has a handle, two telescopic members, and at least one locking mechanism. While the telescopic members are displaced along the length direction of the base, a plurality of positioning portions of the locking mechanism are displaced relative to a locking member. When the handle assembly leaves the base, the locking member of the locking mechanism engages with a positioning portion located at a specific relative position, thereby locking the telescopic member in one of a plurality of telescopic positions along the length direction. The spacing between the positioning portions of the locking mechanism is not uniform, and the spacing between the telescopic positions of the telescopic members is also not uniform.

Claims

1. An adjustable dumbbell system comprising: a base having two opposing ends and a length direction defined by the two ends; a plurality of first weight plates and a plurality of second weight plates, the first weight plates being arranged along the length direction at one end of the base, the second weight plates being arranged along the length direction at the other end of the base, each of the weight plates having a notch passing through its inner and outer sides along the length direction; and a handle assembly disposed between the two ends of the base, comprising: a handle; a first telescopic member and a second telescopic member, wherein when the handle assembly is placed on the base, each of the telescopic members is operable by a user to displace relative to the handle along the length direction between an innermost position and an outermost position, wherein... The aforementioned first telescopic member can sequentially extend into the aforementioned recesses of the first weight plates from the inside out, and the aforementioned second telescopic member can sequentially extend into the aforementioned recesses of the second weight plates from the inside out; and at least one locking mechanism, each having a locking member and a plurality of positioning portions; while at least one of the aforementioned telescopic members is displaced relative to the aforementioned handle along the aforementioned length direction, the positioning portions of at least one of the aforementioned locking mechanisms are displaced relative to the aforementioned locking member along a displacement path; when the aforementioned handle assembly leaves the aforementioned base, the aforementioned locking member of each of the aforementioned locking mechanisms engages with a aforementioned positioning portion located at a specific relative position, such that each of the aforementioned telescopic members is locked relative to the aforementioned handle at one of a plurality of telescopic positions in the aforementioned length direction, such that the telescopic positions include the aforementioned innermost position and the aforementioned outermost position; wherein, the positioning portions of each of the aforementioned locking mechanisms are spaced apart along the aforementioned displacement path, and the spacing between each pair of adjacent positioning portions on the aforementioned displacement path is not consistent, such that the spacing between each pair of adjacent telescopic positions in the aforementioned length direction at which each of the aforementioned telescopic members may be locked is also not consistent.

2. The adjustable dumbbell system as described in claim 1, wherein, The aforementioned adjustable dumbbell system further includes at least one first auxiliary weight and at least one second auxiliary weight that can be placed on the aforementioned base; the aforementioned handle assembly further includes at least one first clutch and at least one second clutch; while the aforementioned first telescopic member is displaced from one of the aforementioned telescopic positions to another adjacent telescopic position, the aforementioned at least one first clutch is displaced from one predetermined position to another predetermined position relative to the aforementioned at least one first auxiliary weight, thereby engaging or disengaging from the aforementioned first auxiliary weight; while the aforementioned second telescopic member is displaced from one of the aforementioned telescopic positions to another adjacent telescopic position, the aforementioned at least one second clutch is displaced from one predetermined position to another predetermined position relative to the aforementioned at least one second auxiliary weight, thereby engaging or disengaging from the aforementioned second auxiliary weight.

3. The adjustable dumbbell system as described in claim 2, wherein, In the aforementioned telescopic positions where each of the aforementioned telescopic members may be locked, the distance between two adjacent telescopic positions is less than the difference between the inner ends of the aforementioned recesses of two adjacent weight plates; each of the aforementioned telescopic members, when displaced outward from one of the aforementioned telescopic positions to an adjacent telescopic position, will cause the aforementioned telescopic member to extend into the aforementioned recess of one of the aforementioned weight plates, and the displacement distance therein is defined as a primary feed distance; each of the aforementioned telescopic members, when displaced outward from one of the other aforementioned telescopic positions to an adjacent telescopic position, will not cause the aforementioned telescopic member to extend into the aforementioned recess of one of the aforementioned weight plates, and the displacement distance therein is defined as a secondary feed distance; the aforementioned primary feed distance is greater than the aforementioned secondary feed distance.

4. The adjustable dumbbell system as described in claim 3, wherein, The aforementioned primary feed distance is 1.25 to 1.75 times the aforementioned secondary feed distance.

5. The adjustable dumbbell system as described in claim 3 or 4, wherein, The telescopic positions in which each of the aforementioned telescopic members may be locked include a plurality of odd positions and a plurality of even positions that alternate between odd and even; when a aforementioned telescopic member is in one of the aforementioned odd positions and extends into the aforementioned recess of at least one of the aforementioned weight plates, the outer end face of the aforementioned telescopic member is in a shallower position in the outermost of the aforementioned recess into which it extends; when a aforementioned telescopic member is in one of the aforementioned even positions and extends into the aforementioned recess of at least one of the aforementioned weight plates, the outer end face of the aforementioned telescopic member is in a deeper position in the outermost of the aforementioned recess into which it extends, the deeper position being closer to the outer end of the aforementioned recess than the shallower position.

6. The adjustable dumbbell system as described in claim 1, wherein, The aforementioned handle assembly also includes at least one rotating disk; while at least one of the aforementioned telescopic members is displaced relative to the aforementioned handle along the aforementioned length direction, at least one of the aforementioned rotating disks rotates around a rotation axis; the positioning parts of each of the aforementioned locking mechanisms are disposed on the aforementioned rotating disk, and the aforementioned repositioning path is an arc with the aforementioned rotation axis as the center.

7. The adjustable dumbbell system as described in claim 6, wherein, Corresponding to the aforementioned telescopic member moving from the innermost position to the outermost position, the total rotation angle of the aforementioned rotating disk is less than 360 degrees; the number of telescopic positions that may be locked by each of the aforementioned telescopic members is equal to the number of positioning parts on each of the aforementioned rotating disks, and the distance between two adjacent telescopic positions in the aforementioned length direction corresponds one-to-one with the distance between two adjacent positioning parts on the aforementioned transposition path.

8. The adjustable dumbbell system as described in claim 1, wherein, The aforementioned handle assembly includes two aforementioned locking mechanisms, the positioning portions of the two locking mechanisms are respectively disposed on the two aforementioned telescopic members, and each of the aforementioned shifting paths is a straight line parallel to the aforementioned length direction; the number of telescopic positions that may be locked on each of the aforementioned telescopic members is equal to the number of the positioning portions on the aforementioned telescopic members, and the distance between two adjacent telescopic positions in the aforementioned length direction corresponds one-to-one with the distance between two adjacent positioning portions in the aforementioned shifting path.

9. The adjustable dumbbell system as described in claim 1, wherein, The aforementioned handlebar assembly further includes at least one positioning mechanism, each of the aforementioned positioning mechanisms including a recess and a plurality of recesses; while at least one of the aforementioned telescopic members is displaced relative to the aforementioned handlebar along the aforementioned length direction, the recesses of at least one of the aforementioned positioning mechanisms are displaced relative to the aforementioned recess; when the aforementioned telescopic member is displaced to any of the aforementioned telescopic positions, the aforementioned recess of the aforementioned positioning mechanism is subjected to an elastic force and sinks into a corresponding aforementioned recess.

10. The adjustable dumbbell system as described in claim 1, wherein, The aforementioned adjustable dumbbell system also includes at least one blocking mechanism, each of which includes a first interference portion disposed on the aforementioned base and a second interference portion disposed on the aforementioned handle assembly; when at least one of the aforementioned telescopic members is not in any of the aforementioned telescopic positions, the aforementioned first interference portion and the aforementioned second interference portion of the at least one of the aforementioned blocking mechanisms will interfere with each other to prevent the aforementioned handle assembly from leaving the aforementioned base.

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