 Electric motor housing with end cap |
| In FIG. 1 a cylindric housing is shown comprising a shell 10 and an end cap 11. The end cap 11 is ... |
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| Lead-wire arrangement of vehicle ac generator |
| A main object of the invention is to provide an improved lead-wire arrangement of an ac generator ... |
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| Magnetic thrust bearing with permanent bias flux |
| OF THE INVENTION Turning to the drawings wherein like characters designate identical or ... |
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| 2-Pole stepper motor for timepiece |
| What is claimed is: 1. A two-pole step motor for a timepiece comprising: a stator including a high-... |
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| Power unit arrangement structure for motorcycle |
| What is claimed is: 1. A power unit arrangement structure for a motorcycle, said motorcycle having ... |
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| Motor |
| It is therefore an object of the present invention to provide a motor in which the above-mentioned ... |
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| Disk driving apparatus using dynamic pressure-type bearing device |
| The object of the present invention is therefore to provide a disk driving apparatus using a ... |
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Sleeved, snap-on hub-to-shaft connection
| Details |
Inventors: Coggiola, Marcel;
Assignee: Robot Coupe, S.A. (Rosny sous Bois, FR)
Primary Examiner: Shedd; Wayne L.
Assistant Examiner:
Attorney, Agent or Firm: Parmelee, Johnson, Bollinger & Bramblett
Snap-on fastener apparatus for removably holding tools on a drive shaft turned by the motor of a household electrical appliance, particularly shown as a food processor with multiple uses, in which interchangeable rotary tools of various shapes and types are employed as a function of the different food preparation tasks to be performed. A protective sheath surrounds the drive shaft and a sheath portion of the tool hub engages upon the sheath of the drive shaft. Fastener apparatus enables the user to affix the desired tool upon the drive shaft sheath in a snap-on manner for removably holding the tool against axial displacement relative to the drive shaft and enables the rapid and convenient installation or removal of the tools without the use of accessories. As the tool is being introduced onto the drive shaft, a flange spreads a plurality of elastic retainer clips which then snap back to reclose over the flange when the tool is fully installed for retaining it in position. |
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DETAILED DESCRIPTION The following detailed description sets forth a number of modes of employing the present invention in practical application in food processors.
The presently preferred mode is indicated in the description.
In FIG.
1, the shaft sheath 1 on the tool-drive shaft has three small resilient retainer clips 3 which deflect elastically but snap back into shape.
The shaft sheath 1 (see FIG.
3) comprises a cylindrical piece on the tool drive shaft 2 and is equipped with a flattened section or spline face 1a integrally formed with a collar 8 continued by a skirt part 9 of larger diameter than the sheath 1.
It is noted that the collar 8 has an inner portion which extends radially outwardly from the shaft sheath 1 and has a peripheral sloping portion which inclines downwardly and outwardly from the radial portion of the collar.
The skirt part 9 is cylindrical in configuration and extends down from the inner radial portion of the collar 8 and is located intermediate the sheath 1 and the downwardly sloping portion of the collar 8.
As seen from the section shown in FIG.
3, the sheath 1, the collar 8, the depending skirt part 9, and the finger-like resilient retainer clip 3 are all integrally formed from plastic material.
The clips 3 extend axially up at the juncture of the inner radial and outer sloping portions of the collar 8.
Moreover, the inner surfaces of the clips at their free upper ends curve inwardly in the nature of a hook toward the axis of the drive shaft 2.
Also, the top surface of each clip 3 is shown inclined inwardly and downwardly as seen in FIG.
1 and at the left in FIG.
3 for providing a cam surface which will serve momentarily to spread the clips out when the tool is being installed, as will be explained.
In FIG.
3, the elements already described are shown in position after the installation or mounting of the tool sheath 4 on the drive shaft sheath 1, this tool sheath 4 being shown, for example, as the lower portion of an elongated hub for a rotary tool of the type as illustrated in FIG
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Generators or Motors 
