Locking control knob
AssigneeElesa S.p.A.
InventorAlberto Bertani
Life of this patent
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Abstract
A control knob having a locking mechanism that can be pressure-activated and controlled from the outside by the operator. When activated, the locking mechanism engages a structure on which the knob is mounted, preventing the rotation of the knob. The locking mechanism includes a keylock having a latch that can be turned with a key so as to engage a catch of the knob-housing seat of the locking mechanism.
Claims7
A control knob for mounting on a structuring provided with a plurality of holes, the control knob comprising a locking mechanism that is pressure-activated and controlled externally by an operator, the locking mechanism comprising:
- an axially movable plunger assembly that is aligned with a hub of the control knob, that can be operated with one hand, and that protrudes outward from the control knob;
- at least one projecting pin carried by the plunger assembly for engaging the plurality of holes;
- a keylock that is carried by the plunger assembly, the keylock having a latch that can be turned with a key;
- and
- a catch in which the latch engages for preventing axial movement of the plunger assembly;
- wherein when the locking mechanism is activated, the locking mechanism engages the structure on which the control knob is mounted and inhibits rotation of the control knob.
A control knob for mounting on a structuring provided with a drive spindle and a plurality of holes, the control knob comprising a hub to be connected for joint rotation with the drive spindle, and a locking mechanism that is pressure-activated and controlled externally by an operator, the locking mechanism comprising:
- an axially movable plunger assembly that is coaxially aligned with the hub of the control knob, that can be operated with one hand, and that protrudes outward from the control knob;
- at least one projecting pin provided on the plunger assembly for engaging the plurality of holes;
- a keylock having a latch that can be turned with a key;
- and
- a catch in which the latch engages for preventing axial movement of the plunger assembly;
- wherein when the locking mechanism is activated, the locking mechanism engages the structure on which the control knob is mounted and inhibits rotation of the control knob.
Dependencies are inferred from the claim text.