Cam-activated bench vise

• US 9,120,206 B1
• Filed: 05/19/2015
• Issued: 09/01/2015
• Est. Priority Date: 05/19/2015
• Status: Expired due to Fees

• Current Assignee: John Yongki Lee
• Original Assignee: John Yongki Lee
• Inventors: Lee, John Yongki
• Primary Examiner(s): Wilson, Lee D
• Application Number:
  US14/716,680
• Time in Patent Office: 105 Days
• US Class Current: 1/1
• CPC Class Codes: B25B 1/125 with one screw perpendicular to the jaw faces

Abstract

In one embodiment a cam-activated bench vise comprises a fixed jaw having a first gripping surface, a moveable jaw having a second gripping surface, a threaded rod for providing movement of the moveable jaw relative to the fixed jaw, a hinged split nut for selectively engaging the threaded rod, and a lever actuated cam that rotates a beveled plunger against a first end of the split nut, forcing a second end of the split nut to engage a bevel-mouthed receiving block which causes the split nut to close and to engage the threaded rod.

Claims

1. A cam-activated bench vise, comprising:

a fixed jaw having a first gripping surface;

a moveable jaw having a second gripping surface;

a threaded rod for providing movement of the moveable jaw relative to the fixed jaw;

a hinged split nut for selectively engaging the threaded rod;

a lever actuated cam that rotates a plunger proximal to a first end of a split nut; and

wherein the split nut has a beveled second end for engagement with a bevel-mouthed receiving block.

2. The cam-activated bench vise of claim 1, further comprising a base, a threaded rod housing, and a clamping lever for rotation of the threaded rod.

3. The cam-activated bench vise of claim 1, wherein the hinged split nut comprises hinge springs.

4. The cam-activated bench vise of claim 1, wherein the bevel-mouthed receiving block comprises housing springs positioned to engage a second end of the split nut.

5. A cam-activated bench vise, comprising:

a fixed jaw having a first gripping surface and an aperture for receiving

a threaded rod housing;

a moveable jaw having a second gripping surface;

wherein the threaded rod housing comprises a threaded rod for

providing movement of the moveable jaw relative to the fixed jaw;

a hinged split nut for selectively engaging the threaded rod;

a lever actuated cam that rotates a plunger proximal to a first end of a hinged split nut;

wherein the hinged split nut has one or more hinge springs and has a beveled second end for engagement with a bevel-mouthed receiving block; and

a clamping lever for rotating the threaded rod.

6. A method of using the cam-activated bench vise of claim 5, comprising:

placing a workpiece between the fixed jaw and the moveable jaw;

sliding the moveable jaw proximal to and engaging with the workpiece, which is proximal to and engaged with the fixed jaw;

actuating the cam lever, which rotates a plunger proximal to and engaging with a first end of the split nut;

forcing the cam lever such that the split nut is received by the bevel-mouthed receiving block, causing the split nut to close and engage the threaded rod; and

rotating the clamping lever until the desired amount of force is applied to the workpiece.