Plunger clamp with a lever lock

Patent metadata

Field	Value
Publication number	US-11097399-B2
Application number	US-201916382364-A
Country	US
Kind code	B2
Filing date	Apr 12, 2019
Priority date	Apr 21, 2018
Publication date	Aug 24, 2021
Grant date	Aug 24, 2021

Abstract

A plunger clamp has a body defining a bore with a plunger slidably held in the body bore. A lever is pivotally connected with the body. A link arm pivotally connects between the plunger and lever. A catch mechanism is coupled with the body. A latch mechanism is coupled with the lever. The catch mechanism and latch mechanism couple with one another to lock the plunger in a first clamped position and in a second released position.

First claim

What is claimed is:

1. A plunger clamp comprising:
a body, the body defining a bore; a plunger slidably positioned in the bore in the body; a lever pivotally connected to the body; a link arm pivotally connected between the body and lever; a catch mechanism coupled to the body; a latch mechanism coupled with the lever;
the catch mechanism and latch mechanism coupling with one another for locking the plunger in a clamped position and in a released position.

2. The plunger clamp according to claim 1 , wherein the catch mechanism includes a first and second catch.

3. The plunger clamp according to claim 1 , wherein the latch includes a first and second latch.

4. The plunger clamp according to claim 1 , wherein a biasing member exerts a force on the latch mechanism to maintain the latch mechanism in the locked clamp and locked released positions.

5. The plunger clamp according to claim 1 , wherein the lever includes a pair of spaced arms with the latch mechanism seated between the arms.

6. The plunger clamp according to claim 1 , wherein the plunger defines an axis with the catch mechanism and latch mechanism coupling in the clamping position on one side of the axis and in the release position on the other side of the axis.

7. The plunger clamp according to claim 3 , wherein the first and second latches include cutouts.

8. The plunger clamp according to claim 2 , wherein one of the first and second catches is a pin.

9. The plunger clamp according to claim 2 , wherein one of the first and second catches is on the body.

10. The plunger clamp according to claim 9 , wherein the other of the first and second catches is coupled with the link.

Assignees

• Capital Formation Inc

Inventors

• Pungpak Chayoot
• Grobbel Thomas M

Classifications

• B25B5/166

  Slideways; Guiding and/or blocking means for jaws thereon · CPC title

• B25B5/163

  Jaws or jaw attachments · CPC title

• B23Q3/06

  Work-clamping means · CPC title

• B25B11/00

  Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders (for holding or positioning work for welding, soldering, or cutting by applying heat locally B23K37/04; specially adapted to machine tools B23Q3/00) · CPC title

• B25B5/12 Primary

  using toggle links · CPC title