Handle assembly for relieving wrist joint stress

• US 5,275,068 A
• Filed: 07/06/1992
• Issued: 01/04/1994
• Est. Priority Date: 07/06/1992
• Status: Expired due to Fees

• Current Assignee: Robert A. Wrench
• Original Assignee: Robert A. Wrench
• Inventors: Wrench, Robert A.
• Primary Examiner(s): LUONG, VINH
• Application Number:
  US07/909,306
• Time in Patent Office: 547 Days
• Field of Search: 74/557, 74/528, 74/523, 74/524, 74/525, 30/298 X, 30/296.1
• US Class Current: 74/557
• CPC Class Codes: A01B 1/22 Attaching the blades or the like to handles handles for tools, or their attachment, in general B25G; Interchangeable or adjustable blades
• CPC Class Codes: B25G 1/102 the shape being specially adapted to facilitate handling or improve grip
• CPC Class Codes: B26B 27/007 with handles specifically adapted to be attached to a human hand or finger, e.g. thimbles for razors B26B21/527
• CPC Class Codes: Y10T 74/20864 Handles

Abstract

The handle assembly comprises a beam which extends from an area on the user'"'"'s forearm to just beyond the user'"'"'s knuckles between the phalanges and metatarsals. A saddle at the forearm end distributes loads over the forearm area. The saddle may be fitted with a adjustable strap to hold the saddle in place. There is a journal at the knuckle end, the axis of the journal being essentially parallel to the beam and positioned such that the hub of a hand grip attached to a shaft in the journal fits between the fore and middle fingers of the users hand. An adaptor is attached to the shaft to facilitate attaching any of a variety of tools or implements to the assembly. In one embodiment of the invention the grip comprises a second saddle which engages the wrist joint for the hand. Mounting the grip and adaptor on the journalled shaft enables altering the active direction of the tool or implement without moving the forearm saddle on the arm.

Claims

1. A handle assembly adapted for holding and use by a user for holding and using a tool, said assembly comprising:

a beam having first and second ends and a saddle at said first end and a journal at said second end, said beam having a first longitudinal axis, said journal having a second longitudinal axis, said first and second axes being essentially parallel, said saddle being shaped and positioned to engage the forearm of said user,

a shaft having first and second shaft ends,

a grip and

a tool holding adaptor,

said shaft having first and second shaft ends and being installed in said journal with said first and second shaft ends extending beyond said journal,

said grip being attached to said first shaft end,

said adaptor being attached to said second shaft end,

whereby with said tool held in said adaptor, said grip held in a hand of said user and said saddle engaging said forearm of said user,

said handle assembly enable use of said tool.

2. The handle assembly of claim 1 in which said grip further comprises a wrist joint saddle.

3. A handle assembly for holding and use by a user for holding and using a tool, said assembly comprising:

a beam having first and second ends,

a saddle,

a tool holding adaptor,

a grip and

means for attaching said tool to said adaptor,

said saddle being attached to said first end of said beam,

said grip and means for attaching being attached to said second end of said beam,

said grip extending toward said first end and said adaptor extending away from said first end,

said grip further comprising a wrist saddle.