Snap Ring Pliers
First Claim
1. Pliers for operating snap rings, the pliers comprising a handle portion and a jaw portion mounted on the handle portion, the handle portion comprising a pair of handles movable relative to one another by a user, wherein the jaw portion comprises a pair of jaws extending generally parallel to one another and being mounted to the handle portion via crossed levers so that the jaws are constrained to move in a substantially parallel action, each of said crossed levers being coupled to a respective one of the handles by a respective operating pin so as to open and close the jaws in response to pivotal movement of the handles, the jaws being provided with operating tips for engaging the apertures in a snap ring, the pliers being adaptable to operate in a first mode in which the pliers will engage and constrict an internal snap ring and a second mode in which the pliers will engage and expand an external snap ring, the position of each operating pin on its respective handle being selectable to change the mode of operation from said first mode to said second mode and vice versa.
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Accused Products
Abstract
The jaw portion comprises cross levers centrally connected by a rotatable central axis with a throughbore and outwardly connected by lever pivots to parallel jaws (within clots at one end) with tapered operating tips at either end.
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Citations
19 Claims
- 1. Pliers for operating snap rings, the pliers comprising a handle portion and a jaw portion mounted on the handle portion, the handle portion comprising a pair of handles movable relative to one another by a user, wherein the jaw portion comprises a pair of jaws extending generally parallel to one another and being mounted to the handle portion via crossed levers so that the jaws are constrained to move in a substantially parallel action, each of said crossed levers being coupled to a respective one of the handles by a respective operating pin so as to open and close the jaws in response to pivotal movement of the handles, the jaws being provided with operating tips for engaging the apertures in a snap ring, the pliers being adaptable to operate in a first mode in which the pliers will engage and constrict an internal snap ring and a second mode in which the pliers will engage and expand an external snap ring, the position of each operating pin on its respective handle being selectable to change the mode of operation from said first mode to said second mode and vice versa.
- 18. Pliers comprising a handle portion and a jaw portion mounted on the handle portion, the handle portion comprising a pair of handles movable relative to one another by a user, wherein the jaw portion comprises a pair of jaws extending generally parallel to one another and being mounted to the handle portion via two crossed levers which are connected to one another by a central pivot and outwardly connected to the jaws by lever pivots, at one end within slots, so that the jaws are constrained to move together and apart while remaining substantially parallel.
Specification