Fitness device with tight-fitting weight block

TWI940357BActive Publication Date: 2026-09-21万峰实业股份有限公司
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Patent Information

Application Number
TW114140251
Authority / Receiving Office
TW · TW
Patent Type
Patents
Current Assignee / Owner
Filing Date
2025-10-17
Publication Date
2026-09-21
Estimated Expiration
2045-10-16

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  • Figure TWG2TB001912474_001
    Figure TWG2TB001912474_001
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    Figure TWG2TB001912474_003
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Abstract

A fitness device with tightly fitting weights includes: a handle; and two counterweight mechanisms, respectively disposed at both ends of the handle, with one or more weights disposed on the outer side of each counterweight mechanism. The main body of the counterweight mechanism and a weight are detachably connected to each other by a block and a groove; adjacent weights are also connected to each other by a block and a groove, forming a three-dimensional tightness between the block and the groove, so that when the fitness device is in use, the main body of the counterweight mechanism and a weight will not loosen, and the majority of weights will also not loosen.
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Claims

1. A fitness device with tightly fitting weights, comprising: a handle; two counterweight mechanisms respectively disposed at both ends of the handle; at least one weight disposed on the outer side of each counterweight mechanism; each counterweight mechanism having a main body; a base surface located on the outer side of the main body; an insert having a post and a wider plate, the post connecting to the base surface, the bottom end of the insert being an insertion end, the width of the post gradually increasing from the insertion end to the top end of the insert; a gap between the inner wall surface of the plate and the base surface, the gap gradually decreasing from the insertion end to the top end of the insert; and a groove disposed on the inner side of the weight, having a wider inner groove and a narrower outer groove, the top end of the groove being an open end; the width of the outer groove gradually decreasing from the open end to the bottom end of the groove. The insert end of the insert is detachably engaged with the slot from the open end of the slot, the insert post presses against the outer slot portion; the insert plate presses against the inner slot portion.

2. The fitness device as described in claim 1, wherein: Each counterweight mechanism has a plurality of weights on its outer side, arranged longitudinally along the handle, with adjacent weights being an inner weight and an outer weight, respectively; and includes: a base surface located on the outer side of the inner weight; another insert having a post and a wider plate, the post connecting to the base surface, the bottom end of the insert being an insertion end, the width of the post gradually increasing from the insertion end to the top of the insert; a gap between the inner wall of the plate and the base surface, the gap gradually decreasing from the insertion end to the top of the insert; another groove located on the inner side of the outer weight, having a wider inner groove and a narrower outer groove, the top of the groove being an open end; the width of the outer groove gradually decreasing from the open end to the bottom of the groove; the insertion end of the insert engages with the groove from the open end, the post pressing against the outer groove; the plate pressing against the inner groove.

3. A fitness device with tightly fitting weights, comprising: a handle; a plurality of weights arranged longitudinally along the handle, adjacent weights being separably engaged with each other by a block and a groove; a base surface located on one side of one of the weights; the block having a post and a wider plate, the post connecting to the base surface, the bottom end of the block being an insertion end, the width of the post gradually increasing from the insertion end to the top end of the block; a gap between the inner wall surface of the plate and the base surface, the gap gradually decreasing from the insertion end to the top end of the block; the groove located on one side of another of the weights, having a wider inner groove and a narrower outer groove, the top end of the groove being an open end; the width of the outer groove gradually decreasing from the open end to the bottom end of the groove; The insert end of the insert is inserted into the slot from the open end of the slot, the insert post presses against the outer slot, and the insert plate presses against the inner slot.

4. The fitness device as described in any one of claims 1 to 3, wherein: The thickness of the insert gradually decreases from the insertion end to the top of the insert; the depth of the outer groove gradually increases from the open end to the bottom end.

5. The fitness device as described in any one of claims 1 to 3, wherein: The inner wall of the panel is an inclined surface, and the gap is formed between the inclined surface and the base surface.

6. The fitness device as described in claim 5, wherein: A shoulder surface is formed between the inner and outer grooves. The shoulder surface has an inclination angle, so that the depth of the inner groove gradually decreases from the open end to the bottom end. The inclined surface of the insert is in close contact with the shoulder surface of the groove.

7. The fitness device as described in any one of claims 1 to 3, wherein: The width of the panel gradually increases from the insertion end to the top of the insert; the width of the inner groove gradually decreases from the open end to the bottom of the groove; the two side walls of the panel are pressed against the two side circumferences of the inner groove.

8. The fitness device as described in any one of claims 1 to 3, wherein: The thickness of the panel gradually increases from the insertion end to the top; the depth of the inner groove gradually decreases from the open end to the bottom.

9. The fitness device as described in claim 1, wherein: The insert has a connecting plate, one surface of which forms the base surface; the connecting plate is located on the outer side of the main body; the groove is formed in a block, which is located on the inner side of the weight.

10. The fitness device as described in claim 3, wherein: The insert has a connecting plate, one surface of which forms the base surface; the connecting plate is disposed on one side of the one said weight; the slot is formed in a block, which is disposed on one side of the other said weight.

Citation Information

Patent Citations

  • Dumbbell with adjustable weight

    TWM627768U

  • Dumbbells with quick weight adjustment

    TWM638028U

  • Quick adjustment plate balance weight dumbbells

    TWM645012U