Processing

Please wait...

Settings

Settings

Goto Application

1. WO1996030114 - MIXING MACHINE BOWL SUPPORT LOCK

Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

[ EN ]

CLAIMS

1. A mixing machine comprising:

a mixing head;

a mixing bowl support for supporting a mixing bowl under the mixing head;

a gear train for moving the bowl support and mixing bowl nto position beneath the mixing head; and

a lock which engages the gear train to prevent the bowl support from moving out of position beneath the mixing head during mixing.

2. The mixing machine of claim 1 wherein the gear train
further includes a screw which, at a first end, is
received in a threaded aperture m the bowl support such that by rotating the screw, the bowl support can be
raised and lowered and, at a second end, has at least one gear mounted thereon which is engaged by the lock whereby the screw is prevented from rotating and the bowl support is prevented moving out of position beneath the mixing head during mixing.

3 The mixing machine of claim 2 wherein the gear train
further includes a drive gear which engages the gear
whereby the drive gear is engaged by the lock to prevent the screw from rotating and the bowl support from moving out of position beneath the mixing nead during mixing

4 Tne mixing machine of claim 2 wherein the lock comprises a pawl which engages a gear m the gear train and means for moving the pawl into contact with the gear train
linked with the pawl.

5. The mixing machine of claim 3 wherein the lock comprises a pawl, which engages the drive gear, and means for
moving the pawl into contact with the drive gear linked with the pawl .

6. The mixing machine of claim 5 wherein the means for
moving the pawl into contact with the drive gear is a
solenoid.

7. The mixing machine of claim 6 further comprising a sensor for detecting the positioning of the bowl support beneath the mixing head.

8. The mixing machine of claim 7 wherein the mixer can not be operated if the sensor does not detect the bowl
support in position beneath the mixing head.

9. The mixing machine of claim 8 wherein the sensor
activates the lock when the bowl is in position beneath the mixing head.

10. The mixing machine of claim 9 wherein the pawl is linked to the solenoid by a spring which engages both the pawl and the solenoid so that the solenoid does not become damaged if the pawl engages a tip of a gear tooth.

11. The mixing machine of claim 10 further including a means for overriding the sensor.

12. The mixing machine of claim 11 wherein the drive train is driven manually by a crank.

13. The mixing machine of claim 11 wherein the drive train is driven by a motor.