Adjustable dumbbell

• US 7,887,469 B1
• Filed: 07/28/2010
• Issued: 02/15/2011
• Est. Priority Date: 07/28/2010
• Status: Expired due to Fees

• Current Assignee: Paul Chen
• Original Assignee: Paul Chen
• Inventors: Chen, Paul
• Primary Examiner(s): Thanh; Loan
• Assistant Examiner(s): Roland; Daniel F
• Application Number:
  US12/804,797
• Time in Patent Office: 202 Days
• Field of Search: 482 92- 98, 482104-109, 482/908, D21680-682
• US Class Current: 482/108
• CPC Class Codes: A63B 21/0728 with means for fixing weights on bars, i.e. fixing olympic discs or bumper plates on bar-bells or dumb-bells
• 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 barbell or dumbbell or exercise device includes a handle, two carriers each having a tubular member attached to the end portion of the handle and each having a number of slots, a number of weight members attachable onto the tubular member of the carrier, and two latch members each having a shank engaged into the tubular member and each having a number of latch tongues extendible out through the slots of the carrier for engaging with the weight members and for anchoring the weight members on the carrier and the handle, and the latch tongues are selectively engageable into the tubular member of the carrier for allowing the weight members to be attached to and disengaged from the carrier and the end portion of the handle.

Claims

1. An adjustable exercise device comprising:

a handle including two end portions, two carriers each including a tubular member attached to said end portion of said handle respectively, and each including a chamber formed therein, and each including a plurality of slots formed therein and communicative with said chamber of said tubular member, a plurality of weight members each including an opening formed therein for slidably receiving said tubular member of said carrier and for engaging onto said tubular member of said carrier, and two latch members each including a shank engaged into said chamber of said tubular member, and each including a plurality of latch tongues extended outwardly therefrom and aligned with said slots of said carrier respectively, and said latch member being rotatable relative to said carrier and said handle for selectively extending said latch tongues out through said slots of said carrier respectively and for selectively engaging with said weight members and for anchoring and latching said weight members on said carrier and said handle, and said latch member being rotatable relative to said carrier and said handle for selectively engaging said latch tongues into said tubular member of said carrier and for allowing said weight members to be selectively attached to and disengaged from said carrier and said end portion of said handle;

wherein said handle includes a pin member engaged with said shank of said latch member for limiting said latch member to rotate relative to said carrier and said handle; and

wherein said latch member includes two opposite grooves formed in said shank for slidably engaging with said lock pin member and for pivotally attaching said latch member to said carrier and said handle and for limiting said latch member to rotate relative to said carrier and said handle.

2. The adjustable exercise device as claimed in claim 1, wherein said carriers each include a base plate provided on one end of said tubular member and having an outer diameter greater than that of said tubular member.

3. The adjustable exercise device as claimed in claim 1, wherein said tubular members of said carriers each include a non-circular cross section having at least one cut-off portion formed therein.

4. The adjustable exercise device as claimed in claim 1, wherein said latch member each include a bore formed therein for receiving and engaging with said end portion of said handle.