초록 ▼

An adjustable clamping and spreading bar clamp or bench vice includes a fixed jaw and a movable jaw opposing the fixed jaw, where the fixed jaw and the movable jaw each include two jaw pads facing in opposite directions. The movable jaw connects at one end to a slide bar, which is movable to bring t

An adjustable clamping and spreading bar clamp or bench vice includes a fixed jaw and a movable jaw opposing the fixed jaw, where the fixed jaw and the movable jaw each include two jaw pads facing in opposite directions. The movable jaw connects at one end to a slide bar, which is movable to bring the movable jaw toward and away from the fixed jaw, the movable jaw includes means to releasably engages the slide bar and advances the movable jaw toward the fixed jaw or moves the movable jaw away from the fixed jaw for spreading or jacking. A two-way drive means is operational by a trigger handle grip. Also included is a pair of mechanical detent switches, which are rotated approximately 1/4 revolution, to either change the direction of the movable jaw, or release the clamp after either clamping or spreading.

대표청구항 ▼

1. An adjustable bar clamp for clamping or spreading a workpiece comprising:a bar having at a first end thereof a first jaw member rigidly mounted thereon, a second jaw member slidably mounted on said bar for selectively adjustable positioning along said bar, a first ratchet means mounted on said ba

1. An adjustable bar clamp for clamping or spreading a workpiece comprising:a bar having at a first end thereof a first jaw member rigidly mounted thereon, a second jaw member slidably mounted on said bar for selectively adjustable positioning along said bar, a first ratchet means mounted on said bar and cooperating with said second jaw member, said first ratchet means operatively disposed for ratcheting movement of said second jaw member in a first direction along said bar, a second ratchet means mounted on said bar and cooperating with said second jaw member, said second ratchet means operatively oppositely disposed relative to said first ratchet means for ratcheting movement of said second jaw member in a second direction opposite said first direction, selectively engagable first and second ratchet release member for, in a first position, selectively disengaging said first and second ratchet means from ratcheting engagement to one-way directional engagement with said bar and in a second position for engaging and biasing said first or second ratchet means into ratcheting engagement with said bar for said ratcheting movement of said second jaw member in said first or second directions respectively, a ratchet lever pivotally mounted to said second jaw member and cooperating therewith, for selective operation of, said first and second ratchet means when engaged with said bar by said ratchet release members.