Adjustable dumbbell

• US 7,223,214 B2
• Filed: 07/15/2003
• Issued: 05/29/2007
• Est. Priority Date: 05/31/2001
• Status: Expired due to Term

• Current Assignee: Paul Chen
• Original Assignee: Paul Chen
• Inventors: Chen, Paul
• Primary Examiner(s): Donnelly; Jerome
• Assistant Examiner(s): Mathew; Fenn C.
• Application Number:
  US10/621,150
• Publication Number:
  US 20040005969A1
• Time in Patent Office: 1,414 Days
• Field of Search: 482106-109, 482 93- 94, 482/908
• US Class Current: 482/107
• CPC Class Codes: A63B 21/063 Weight selecting means
• CPC Class Codes: A63B 21/075 with variable weights , e.g. weight systems with weight selecting means for bar-bells or dumb-bells

Abstract

An adjustable dumbbell device includes a handle, a number of weights each having a channel to slidably receive an end portion of the handle, and a latch slidably engaged onto the end portion of the handle and engageable into the channels of a selected number of the weights, to secure the selected number of the weights to the end portion of the handle. A securing device may be used for securing the latch to the end portion of the handle, and includes one or more beams attached to the end portion of the handle, and a spring biasing catch may catch the latch to the beams or the end portion of the handle.

Claims

1. An adjustable dumbbell assembly comprising:

a handle including a first end,

a plurality of weights each including a channel formed therein to slidably and selectively receive said first end of said handle,

a tubular latch slidably engaged onto and around said first end of said handle, and slidably engageable into said channels of a selected number of said weights respectively, and

means for securing said latch to said first end of said handle, and to secure the selected number of said weights to said first end of said handle.

2. The adjustable dumbbell as claimed in claim 1, wherein each of said weights includes a groove formed therein and communicating with said channel thereof to slidably receive said first end of said handle.

3. The adjustable dumbbell as claimed in claim 2, wherein said grooves of said weights include a width smaller than that of said channel to slidably receive said first end of said handle, said latch includes a width greater than that of said grooves of said weights.

4. The adjustable dumbbell as claimed in claim 1, wherein said securing means includes at least one beam attached to said first end of said handle, and means for catching said latch to said at least one beam of said first end of said handle.

5. The adjustable dumbbell as claimed in claim 4, wherein said securing means includes a block secured to said first end of said handle, and said at least one beam is secured to said block and thus secured to said first end of said handle.

6. The adjustable dumbbell as claimed in claim 5, wherein said block includes at least one cavity formed therein to receive an end portion of said at least one beam.

7. The adjustable dumbbell as claimed in claim 5, wherein said handle includes a plate extended from said first end thereof, said block includes a space formed therein to receive said plate.

8. The adjustable dumbbell as claimed in claim 4, wherein said handle includes an extension extended from said first end thereof and parallel to said at least one beam, said latch is slidably engaged onto said extension of said handle.

9. The adjustable dumbbell as claimed in claim 8, wherein said securing means includes a cap secured to said first end of said handle, and said cap includes at least one cavity formed therein to receive an end portion of said at least one beam.

10. The adjustable dumbbell as claimed in claim 4, wherein said at least one beam includes a plurality of projections extended from said at least one beam and engaged with said weights, to position said weights to said at least one beam, and to prevent said weights from moving along said at least one beam.

11. The adjustable dumbbell as claimed in claim 4, wherein said at least one beam includes a passage formed therein, said securing means includes a rod secured to said latch and slidably engaged in said passage of said at least one beam.

12. The adjustable dumbbell as claimed in claim 11, wherein said catching means includes a catch slidably engaged onto said rod for engaging with said at least one beam, to catch and secure said latch to said at least one beam.

13. The adjustable dumbbell as claimed in claim 12 further comprising means for biasing said catch to engage with said at least one beam, and to catch and secure said latch to said at least one beam.

14. The adjustable dumbbell as claimed in claim 1, wherein said first end of said handle includes a passage formed therein to slidably receive said latch therein.

15. The adjustable dumbbell as claimed in claim 1, wherein said handle includes a second end, and a plurality of second weights selectively secured to said second end of said handle.