Lever assembly for high torque load

A lever assembly for a door lock comprising:

• a lock cylinder having a first side, a second side and a shank having a first portion and second portion extending from said first and second sides, respectively, each shank portion defining a slot;
• a pair of spacer plates, each of which having a central opening therethrough and mounted on a respective shank portion and attached to a respective side of the cylinder;
• a pair of housing members, each of which being mounted to a respective shank portion, each housing member having front and rear sides and a central opening for receiving a respective shank portion, said rear side of each housing member receiving a respective spacer plate, said housing members being fastened together, each housing member having a circular channel formed in said front side, said channel being coaxial with said central opening and having a wall, each housing member defining a lip in said channel that is circumferential of said central opening of said housing member, said lip having a substantially planar perimetrical edge, each housing having a pair of travel stop tabs and a pair of spring holder tabs, said travel stop tabs being oppositely formed in and extending from said wall into said channel, said spring holder tabs comprising first and second spring holder tabs oppositely formed in and extending from said wall into said channel;
• a pair of annular rotatable members having peripheries, each rotatable member having a wall portion and being rotatably mounted on said lip of a respective housing member, each rotatable member having one protrusion formed on the periphery thereof that extends substantially parallel to said shank, a segment extending radially from said rotatable member so as to contact one of said travel stops, and a projection extending radially inward from the periphery of said wall portion of said rotatable member and engaged with said slot of a respective shank portion;
• a pair of spring members, each of which mounted on said wall portion of a respective rotatable member, each spring member having bent ends engaging simultaneously said first spring holder tab of a respective housing member and said one protrusion of said respective rotatable member;
• a pair of washers, each of which being positioned over a respective spring member, each washer having a central opening for receiving the perimetrical edge of said wall portion of a respective rotatable member
• a pair of retainers, each of which being positioned over said channel of and attached to said front side of a respective housing member, each retainer being substantially planar and having a substantially smooth perimetrical edge;
• and
• a pair of levers, each of which having a hollow shaft defining an elongated slot, said shaft being mounted to a respective shank portion such that said radially extending projection of a corresponding rotatable member is engaged with said slot of said shaft.

A lever assembly for a door lock comprising:

• a lock cylinder having a first side, a second side and a shank having a first portion and second portion extending from said first and second sides, respectively, each shank portion defining a slot;
• a pair of spacer plates, each of which having a central opening therethrough and mounted on a respective shank portion and attached to a respective side of the cylinder;
• a pair of housing members, each of which being mounted to a respective shank portion, each housing member having front and rear sides and a central opening for receiving a respective shank portion, said rear side of each housing member receiving a respective spacer plate, said housing members being fastened together, each housing member having a circular channel formed in said front side, said channel being coaxial with said central opening and having a wall, each housing member defining a lip in said channel that is circumferential of said central opening of said housing member, said lip having a substantially planar perimetrical edge, each housing having a pair of travel stop tabs and a pair of spring holder tabs, said travel stop tabs being oppositely formed in and extending from said wall into said channel, said spring holder tabs comprising first and second spring holder tabs oppositely formed in and extending from said wall into said channel, one of said housing members having a plurality of pairs of diametrically opposed thru-holes for receiving corresponding fastening screws, said plurality of pairs of thru-holes comprising three pairs of thru-holes, three of said thru-holes being positioned in a top portion of said one of said housing members and three of said thru-holes being positioned at a bottom portion of said one of said housing members, each thru-hole being diametrically positioned with respect to a corresponding thru-hole;
• a pair of annular rotatable members having peripheries, each of which having a wall portion and rotatably mounted on said lip of a respective housing member, each rotatable member having one protrusion formed on the periphery thereof that extends substantially parallel to said shank, a segment extending radially from the periphery of said rotatable member so as to contact one of said travel stops, and a projection extending radially inward from the periphery of said wall portion of said rotatable member and engaged with said slot of a respective shank portion;
• a pair of spring members, each of which mounted on said wall portion of a respective rotatable member, each spring member having bent ends engaging simultaneously said first spring holder tab of a respective housing member and said one protrusion of said respective rotatable member;
• a pair of retainers, each of which being positioned over said channel of and attached to said front side of a respective housing member, each retainer being substantially planar and having a substantially smooth perimetrical edge;
• and
• a pair of levers, each of which having a hollow shaft defining an elongated slot, said shaft being mounted to a respective shank portion such that said radially extending projection of a corresponding rotatable member is engaged with said slot of said shaft.

A lever assembly for a door lock comprising:

• a lock cylinder having a first side, a second side and a shank having a first portion and second portion extending from said first and second sides, respectively, each shank portion defining a slot;
• a pair of spacer plates, each of which having a central opening therethrough and mounted on a respective shank portion and attached to a respective side of the cylinder;
• a pair of housing members, each of which being mounted to a respective shank portion, each housing member having front and rear sides and a central opening for receiving a respective shank portion, said rear side of each housing member receiving a respective spacer plate, said housing members being fastened together, each housing member having a circular channel formed in said front side, said channel being coaxial with said central opening and having a wall, each housing member defining a lip in said channel that is circumferential of said central opening of said housing member, said lip having a substantially planar perimetrical edge, each housing having a pair of travel stop tabs and a pair of spring holder tabs, said travel stop tabs being oppositely formed in and extending from said wall into said channel, said spring holder tabs comprising first and second spring holder tabs oppositely formed in and extending from said wall into said channel, said travel stop tabs of each housing member being less than 180.degree. apart;
• a pair of annular rotatable members having peripheries, each of which having a wall portion and rotatably mounted on said lip of a respective housing member, each rotatable member having one protrusion formed on the periphery thereof that extends substantially parallel to said shank, a segment extending radially from the periphery of said rotatable member so as to contact one of said travel stops, and a projection extending radially inward from the periphery of said wall portion of said rotatable member and engaged with said slot of a respective shank portion;
• a pair of spring members, each of which mounted on said wall portion of a respective rotatable member, each spring member having bent ends engaging simultaneously said first spring holder tab of a respective housing member and said one protrusion of said respective rotatable member;
• a pair of retainers, each of which being positioned over said channel of and attached to said front side of a respective housing member, each retainer being substantially planar and having a substantially smooth perimetrical edge;
• and
• a pair of levers, each of which having a hollow shaft defining an elongated slot, said shaft being mounted to a respective shank portion such that said radially extending projection of a corresponding rotatable member is engaged with said slot of said shaft.

A lever assembly for a door lock comprising:

• a lock cylinder having a first side, a second side and a shank having a first portion and second portion extending from said first and second sides, respectively, each shank portion defining a slot;
• a pair of spacer plates, each of which having a central opening therethrough and mounted on a respective shank portion and attached to a respective side of the cylinder;
• a pair of housing members, each of which being mounted to a respective shank portion, each housing member having front and rear sides and a central opening for receiving a respective shank portion, said rear side of each housing member receiving a respective spacer plate, said housing members being fastened together, each housing member having a circular channel formed in said front side, said channel being coaxial with said central opening and having a wall, each housing member defining a lip in said channel that is circumferential of said central opening of said housing member, said lip having a substantially planar perimetrical edge, each housing having a pair of travel stop tabs and a pair of spring holder tabs, said travel stop tabs being oppositely formed in and extending from said wall into said channel, said spring holder tabs comprising first and second spring holder tabs oppositely formed in and extending from said wall into said channel, said first spring holder tab extending farther into said channel than said second spring holder tab;
• a pair of annular rotatable members having peripheries, each of which having a wall portion and rotatably mounted on said lip of a respective housing member, each rotatable member having one protrusion formed on the periphery thereof that extends substantially parallel to said shank, a segment extending radially from the periphery of said rotatable member so as to contact one of said travel stops, and a projection extending radially inward from the periphery of said wall portion of said rotatable member and engaged with said slot of a respective shank portion;
• a pair of spring members, each of which mounted on said wall portion of a respective rotatable member, each spring member having bent ends engaging simultaneously said first spring holder tab of a respective housing member and said one protrusion of said respective rotatable member;
• a pair of retainers, each of which being positioned over said channel of and attached to said front side of a respective housing member, each retainer being substantially planar and having a substantially smooth perimetrical edge;
• and
• a pair of levers, each of which having a hollow shaft defining an elongated slot, said shaft being mounted to a respective shank portion such that said radially extending projection of a corresponding rotatable member is engaged with said slot of said shaft.

A lever assembly for a door lock comprising:

• a lock cylinder having a first side, a second side and a shank having a first portion and second portion extending from said first and second sides, respectively, each shank portion defining a slot;
• a pair of spacer plates, each of which having a central opening therethrough and mounted on a respective shank portion and attached to a respective side of the cylinder;
• a pair of housing members, each of which being mounted to a respective shank portion, each housing member having front and rear sides and a central opening for receiving a respective shank portion, said rear side of each housing member receiving a respective spacer plate, said housing members being fastened together, each housing member having a circular channel formed in said front side, said channel being coaxial with said central opening and having a wall, each housing member defining a lip in said channel that is circumferential of said central opening of said housing member, said lip having a substantially planar perimetrical edge, each housing having a pair of travel stop tabs and a pair of spring holder tabs, said travel stop tabs being oppositely formed in and extending from said wall into said channel, said spring holder tabs comprising first and second spring holder tabs oppositely formed in and extending from said wall into said channel, one of said housing members having a plurality of pairs of diametrically opposed thru-holes for receiving corresponding fastening screws, said plurality of pairs of thru-holes comprising three pairs of thru-holes, three of said thru-holes being positioned in a top portion of said one of said housing members and three of said thru-holes being positioned at a bottom portion of said one of said housing members, each thru-hole being diametrically positioned with respect to a corresponding thru-hole, said three thru-holes at said top portion of said one of said housing members being spaced about 45 degrees apart, and said three thru-holes at said bottom portion of said housing member being spaced about 45 degrees apart, said other of said housing members having a plurality of threaded inlets formed on said rear side thereof and coaxially aligned with said plurality of thru-holes of said one of said housing members;
• a pair of annular rotatable members having peripheries, each of which having a wall portion and rotatably mounted on said lip of a respective housing member, each rotatable member having one protrusion formed on the periphery thereof that extends substantially parallel to said shank, a segment extending radially from the periphery of said rotatable member so as to contact one of said travel stops, and a projection extending radially inward from the periphery of said wall portion of said rotatable member and engaged with said slot of a respective shank portion;
• a pair of spring members, each of which mounted on said wall portion of a respective rotatable member, each spring member having bent ends engaging simultaneously said first spring holder tab of a respective housing member and said one protrusion of said respective rotatable member;
• at least two studs, each of which having a threaded end threadedly engaged with a corresponding threaded inlet and a threaded bore formed in the end of said stud opposite said threaded end, said studs extending through said spacer plates and being positioned around said lock cylinder;
• and
• at least two screws, each of which disposed in a corresponding thru-hole of said one of said housing members and threadedly engaged with said bore of a corresponding stud so as to connect said housing members together;
• a pair of retainers, each of which being positioned over said channel of and attached to said front side of a respective housing member, each retainer being substantially planar and having a substantially smooth perimetrical edge;
• and
• a pair of levers, each of which having a hollow shaft defining an elongated slot, said shaft being mounted to a respective shank portion such that said radially extending projection of a corresponding rotatable member is engaged with said slot of said shaft.