Organ drop-in key assembly

Claim 2

A keying assembly for an electronic musical instrument comprising a base, keyswitch means supported from said base, key biassing means supported from said base, upstanding support means on said base adjacent to said keyswitch plurality of switch operators each engaging a switch contact member and a spring member from the same side thereof.

Claim 3

A keying assembly as set forth in claim 1 wherein the upstanding support means, comprises a plurality of saddles open at the top with the pivot rod received in the open tops.

Claim 4

A keying assembly as set forth in claim 1 wherein the upstanding means comprises studs and each retaining means is a push-on retainer on a respective stud.

Claim 5

A keying assembly for an electronic musical instrument comprising a base, keyswitch means supported from said base and comprising a plurality of parallel metal contacts extending in the same direction, key biassing means supported from said base and comprising a plurality of parallel springs extending in the same direction and substantially parallel to the keyswitch contacts, upstanding support means on said base adjacent said keyswitch means, a common pivot rod, a plurality of keys of a keyboard pivotally mounted on said common pivot rod, said support means having edge openings therein transverse to said common pivot rod and said common pivot rod being received and supported in said edge openings of said upstanding support means, said keys each overlying at least one of said springs and one of said keyswitch contacts and in operative engagement therewith for actuation of said keyswitch means contacts and for biassing of said keys to rest position, and means retaining said pivot rod on said upstanding support means, each contact comprising a wire and each spring comprising a wire, and each key having a saddle thereunder with at least two downwardly directed notches respectively engaging a spring wire and a contact wire.

Claim 6

A keying assembly for an electronic musical instrument comprising a base, keyswitch means supported from said base and comprising a plurality of parallel metal contacts extending in the same direction, key biassing means supported from said base and comprising a plurality of parallel springs extending in the same direction and substantially parallel to the keyswitch contacts, upstanding support means on said base adjacent said keyswitch means, a common pivot rod, a plurality of keys of a keyboard pivotally mounted on said common pivot rod, said support means having edge openings therein transverse to said common pivot rod and said common pivot rod being received and supported in said edge openings of said upstanding support means, said keys each overlying at least one of said springs and one of said keyswitch contacts and in operative engagement therewith for actuation of said keyswitch means contacts and for biassing of said keys to rest position, and means retaining said pivot rod on said upstanding support means, each contact comprising a wire and each spring comprising a wire, and each key having a saddle thereunder with at least two downwardly directed notches respectively engaging a spring wire and a contact wire.

Claim 7

A keying assembly as set forth in claim 4 and further including a common support supporting said contacts and said springs.

Claim 8

A sub-combination for use in an electronic musical instrument keying assembly comprising an insulating base, a plurality of resilient switch contact members extending therefrom in the same direction and parallel to one another substantially in a common plane, a plurality of spring members extending from said base in the same direction and parallel to one another and to said switch contact members substantially in the same common plane as said switch contact members, pairs of sprinG members and contact members being of relative lengths to be engaged and deflected by a common operator, each contact member extending beyond the respective spring member, and a common bus disposed transversely of said members and positioned for selective engagement by all of said contact members but beyond all of said spring members, and a means, a common pivot rod, a plurality of keys of a keyboard pivotally mounted on said common pivot rod, said support means having edge openings therein transverse to said common pivot rod and said common pivot rod being received and supported in said edge openings of said upstanding support means, said keys co-operating with said keyswitch means for operation thereof and with said key biassing means for biassing of said keys to rest position, means upstanding from said base adjacent said support means blocking endwise movement of said pivot rod, and means mounted on said last mentioned upstanding means opposite said edge opening recesses retaining said pivot rod on said upstanding support means.

Claim 9

A sub-combination for use in an electronic musical instrument keying assembly comprising an insulating base, a plurality of resilient switch contact members extending therefrom in the same direction and parallel to one another substantially in a common plane, a plurality of spring members extending from said base in the same direction and parallel to one another and to said switch contact members substantially in the same common plane as said switch contact members, pairs of sprinG members and contact members being of relative lengths to be engaged and deflected by a common operator, each contact member extending beyond the respective spring member, and a common bus disposed transversely of said members and positioned for selective engagement by all of said contact members but beyond all of said spring members, and a means, a common pivot rod, a plurality of keys of a keyboard pivotally mounted on said common pivot rod, said support means having edge openings therein transverse to said common pivot rod and said common pivot rod being received and supported in said edge openings of said upstanding support means, said keys co-operating with said keyswitch means for operation thereof and with said key biassing means for biassing of said keys to rest position, means upstanding from said base adjacent said support means blocking endwise movement of said pivot rod, and means mounted on said last mentioned upstanding means opposite said edge opening recesses retaining said pivot rod on said upstanding support means.

Claim 10

The sub-combination set forth in claim 6 wherein said spring members all are of the same length, and said contact members all are of equal length greater than the length of said spring members.

Claim 11

The sub-combination set forth in claim 6 wherein said spring members and said contact members are wires.

Claim 12

The sub-combination set forth in claim 7 wherein the spring members and the contact members are wires.

Claim 15

The method of assembling a keyswitch assembly as set forth in claim 15 including the further step of positioning key biassing means on said base adjacent to said upstanding support means, and the further step of bringing means on said keys into engagement with said keyswitch means and said key biassing means.

Claim 16

A keying assembly for an electronic musical instrument comprising a base, support means integral with said base and having edge opening recesses, a common pivot rod, a plurality of keys of a keyboard pivotally mounted on said common pivot rod, said common pivot rod being received and supported by the recesses of said support means, resilient means mounted on said support means and operatively engaged by said keys and deflectible thereby, means upstanding from said base adjacent said support means blocking endwise movement of said pivot rod, means mounted on said last mentioned upstanding means opposite said edge opening recesses retaining said pivot rod on said support means.

Claim 17

A keying assembly for an electronic musical instrument comprising a base, support means integral with said base and having edge opening recesses, a common pivot rod, a plurality of keys of a keyboard pivotally mounted on said common pivot rod, said common pivot rod being received and supported by the recesses of said support means, resilient means mounted on said support means and operatively engaged by said keys and deflectible thereby, means upstanding from said base adjacent said support means blocking endwise movement of said pivot rod, means mounted on said last mentioned upstanding means opposite said edge opening recesses retaining said pivot rod on said support means.

Claim 18

A keying assembly as set forth in claim 12 wherein said resilient means comprises keyswtich means.

Claim 19

A keying assembly as set forth in claim 12 wherein said resilient means comprises key biassing means.

Claim 20

A keying assembly as set forth in claim 12 wherein said resilient means comprises keyswitch means and key biassing means.

Claim 21

A keying assembly as set forth in claim 15 wherein the keyswitch means and the key biassing means engagable by each key comprises a common resilient member.