Illuminated pushbutton switch construction means having a safety set and reset mechanism

Claim 2

In combination: a casing having a receiving casing aperture means; a switch means connected to said casing; a pushing member means and a lamp holder means relatively movably unitarily secured together as a pushbutton construction means and being insertable in and removable from said casing through said aperture means, said switch means being actuable to actuated condition and unactuated condition by pushing in action and release action on said pushing member means when said pushbutton construction means is in a locked condition in said aperture means, said pushbutton construction means having actuating means operatively associated with said switch means for operating the same and disposed in said aperture means; locking means carried by said casing and said pushbutton construction means locking said lamp holder means in said locked condition in said casing by an initial pushing in action of said pushing member means, followed by a releasing action of said pushing member means; locking release means carried by said casing and said pushbutton construction means for releasing said lamp holder means from said locked condition; and safety means carried by said pushbutton construction means and being operatively associated with said actuating means, said safety means preventing said actuating means of said pushing member means from actuating said switch means to switch means actuated condition during said initial pushing in action of said pushing member means, said safety means comprising a leaf spring having one end carried by said pushbutton construction means and the other end free thereof.

Claim 3

A combination as set forth in claim 1 wherein said casing has cam means, said free end of said leaf spring being engageable with said cam means to cam said free end to various positions thereof as said pushbutton construction means is being inserted into said aperture means to be locked therein.

Claim 4

A combination as set forth in claim 2 wherein said one end of said leaf spring is carried by said lamp holder means, said leaf spring having notch means intermediate its said ends, said pushing member means having edge means engageable with said notch means to prevent movement between said lamp holder means and said pushing member means.

Claim 5

A combination as set forth in claim 3 wherein said casing carries stop means against which said lamp holder means engages to prevent further movement of said lamp hoLder means into said aperture means of said casing whereby upon initial insertion of said pushbutton construction means into said casing said lamp holder means abuts said stop means and movement between said pushing member means and said lamp holder means is limited by said edge means of said pushing member means engaging said notch means of said leaf spring and whereby upon release of said pushing member means to free said edge means from said notch means said cam means cams said leaf spring out of the way of further upward movement of said pushing member means relative to said lamp holder means.

Claim 6

A combination as set forth in claim 4 wherein the natural resiliency of said leaf spring is to hold said notch means thereof in the path of movement of said edge means of said pushing member means.

Claim 7

A combination as set forth in claim 4 wherein said edge means of said pushing member means is a hook.

Claim 8

In combination: a tubular casing having a receiving casing aperture means adjacent one end and a plunger guiding means adjacent the other end; a switch means actuating plunger adapted to reciprocate in said plunger guiding means; a switch means connected to said casing adjacent said other end and being actuatable by reciprocation of said plunger to switch means actuated condition and an unactuated condition when said plunger is in said plunger guiding means; a pushing member means and a lamp holder means relatively movably unitarily secured together as a pushbutton construction means and being insertable in and removable from said casing through said aperture means, said pushbutton construction means disposed in said aperture means and carrying said plunger; locking means carried by said casing and said pushbutton construction means locking said lamp holder means in locked condition in said casing by an initial pushing in action of said pushing member means, followed by a releasing action of said pushing member means; locking release means carried by said casing and said pushbutton construction means releasing said lamp holder means from said locked condition by a pulling out action on said pushing member means. plunger reciprocating means connected to said pushing member means and to said plunger to reciprocate said plunger to switch means actuated condition by inward pushing in action on said pushing member means and to reciprocate said plunger to switch means unactuated condition by release of said pushing member means while said lamp holder means is in locked condition; and safety means carried by said pushbutton construction means and being operatively associated with said plunger reciprocating means, said safety means preventing said plunger reciprocating means from reciprocating said plunger to switch means actuated condition during said initial pushing in action of said pushing member means, said safety means comprising a leaf spring having one end carried by said pushbutton construction means and the other end free thereof.

Claim 9

In combination: a tubular casing having a receiving casing aperture means adjacent one end and a plunger guiding means adjacent the other end; a switch means actuating plunger adapted to reciprocate in said plunger guiding means; a switch means connected to said casing adjacent said other end and being actuatable by reciprocation of said plunger to switch means actuated condition and an unactuated condition when said plunger is in said plunger guiding means; a pushing member means and a lamp holder means relatively movably unitarily secured together as a pushbutton construction means and being insertable in and removable from said casing through said aperture means, said pushbutton construction means disposed in said aperture means and carrying said plunger; locking means carried by said casing and said pushbutton construction means locking said lamp holder means in locked condition in said casing by an initial pushing in action of said pushing member means, followed by a releasing action of said pushing member means; locking release means carried by said casing and said pushbutton construction means releasing said lamp holder means from said locked condition by a pulling out action on said pushing member means. plunger reciprocating means connected to said pushing member means and to said plunger to reciprocate said plunger to switch means actuated condition by inward pushing in action on said pushing member means and to reciprocate said plunger to switch means unactuated condition by release of said pushing member means while said lamp holder means is in locked condition; and safety means carried by said pushbutton construction means and being operatively associated with said plunger reciprocating means, said safety means preventing said plunger reciprocating means from reciprocating said plunger to switch means actuated condition during said initial pushing in action of said pushing member means, said safety means comprising a leaf spring having one end carried by said pushbutton construction means and the other end free thereof.

Claim 10

A combination as set forth in claim 7 wherein said casing has cam means, said free end of said leaf spring being engageable with said cam means to cam said free end to various positions thereof as said pushbutton construction means is being inserted into said aperture means to be locked therein.

Claim 11

A combination as set forth in claim 8 wherein said one end of said leaf spring is carried by said lamp holder means, said leaf spring having notch means intermediate its said ends, said pushing member means having edge means engageable with said notch means to prevent movement between said lamp holder means and said pushing member means.

Claim 12

A combination as set forth in claim 9 wherein said casing carries stop means against which said lamp holder means engages to prevent further movement of said lamp holder means into said aperture means of said casing whereby upon initial insertion of said pushbutton construction means into said casing said lamp holder means abuts said sTop means and movement between said pushing member means and said lamp holder means is limited by said edge means of said pushing member means engaging said notch means of said leaf spring and whereby upon release of said pushing member means to free said edge means from said notch means said cam means cams said leaf spring out of the way of further upward movement of said pushing member means relative to said lamp holder means.

Claim 13

A combination as set forth in claim 10 wherein the natural resiliency of said leaf spring is to hold said notch means thereof in the path of movement of said edge means of said pushing member means.

Claim 14

A combination as set forth in claim 10 wherein said edge means of said pushing member means is a hook.