Locking control device for electronic equipment & the like
First Claim
1. A locking control device for electronic equipment having a rotary control member with a rotary spline shaft fixedly mounted through a housing by a nut, said locking device comprising:
- a) a gripping member having means for mounting in a stationary manner onto the housing about the rotary spline shaft of the rotary control member;
b) a control knob having an enlarged collar and spline center bore to slideably mount onto and mate with the rotary spline shaft next to said gripping member so that rotation of said control knob will rotate the rotary spline shaft of the rotary control member; and
c) means within said enlarged collar of said control knob for engagedly mating with said gripping member, when aid control knob is pushed towards the housing completely onto the rotary spline shaft into a locked position, thereby preventing accidental movement of the rotary spline shaft.
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Accused Products
Abstract
A locking control device is provided for electronic equipment and the like of the type having a rotary control member with a rotary spline shaft fixedly mounted through a housing by a nut. The locking control device consists of a gripping member secured in a stationary manner onto the housing about the rotary spline shaft on the rotary control member. A control knob having an enlarged collar and spline center bore is slideably mounted onto the rotary spline shaft above the gripping member. Rotation of the control knob will rotate the rotary spline shaft of the rotary control member. A mechanism within the enlarged collar of the control knob for engagedly mating its gripping surface with the gripping member, when the control knob is pushed completely down onto the rotary spline shaft, thereby preventing accidental movement of the rotary spline shaft.
45 Citations
9 Claims
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1. A locking control device for electronic equipment having a rotary control member with a rotary spline shaft fixedly mounted through a housing by a nut, said locking device comprising:
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a) a gripping member having means for mounting in a stationary manner onto the housing about the rotary spline shaft of the rotary control member; b) a control knob having an enlarged collar and spline center bore to slideably mount onto and mate with the rotary spline shaft next to said gripping member so that rotation of said control knob will rotate the rotary spline shaft of the rotary control member; and c) means within said enlarged collar of said control knob for engagedly mating with said gripping member, when aid control knob is pushed towards the housing completely onto the rotary spline shaft into a locked position, thereby preventing accidental movement of the rotary spline shaft. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A locking control device for electronic equipment having a rotary control member with a rotary spline shaft fixedly mounted through a housing by a net, said locking control device comprising:
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a) a one-piece gripping member comprising a disk having a central aperture and a serrated top surface, a nut which threads onto said rotary control member and extends over a portion of the gripping member clamping the gripping member stationary against the housing and extending about the rotary spline shaft of the rotary control member; b) a one-piece control knob having an enlarged collar and spline center bore to slidably mount onto and mate with the rotary spline shaft next to said gripping member so that rotation of said control knob will rotate the rotary spline shaft of the rotary control member and a serrated bottom surface integrally formed within said enlarged collar for engagingly mating with said gripping member, when said control knob is pushed towards the housing, completely onto the rotary spline shaft into a locked position, thereby preventing accidental movement of the rotary spline shaft, the circumferences of said disk and said collar being integrally formed with male and female flanges interengagable in a snap fit when said control knob is pushed into the locked position better to secure said control knob thereto in the locked position, so that the rotary spline shaft will not move.
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Specification