Joints and connections – With adjunctive protector – broken parts retainer – repair,... – Position or guide means
Patent
1997-12-04
2000-10-24
Kim, Harry C.
Joints and connections
With adjunctive protector, broken parts retainer, repair,...
Position or guide means
4033591, 4033744, F16B 214
Patent
active
061356646
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention concerns a device for coupling a hollow cylinder to a shaft, designed to be mounted at the end of said shaft, the relative angular position of the cylinder and of the shaft being adjustable.
BACKGROUND OF THE INVENTION
A device of this kind is of the type described in document EP-A-0 148 794. The device of the above document is satisfactory but the device is generally mounted on a shaft that is adapted to receive it and it is not always easy to mount it, its components parts having to be mounted one after the other.
SUMMARY OF THE INVENTION
An aim of the present invention is to propose a device of the above kind adapted to be mounted at the end of an existing shaft and which additionally constitutes a subassembly that is easy to mount at the end of said shaft, in the manner of a pulley-wheel, for example.
In accordance with the invention, a device for coupling to a shaft adapted to be placed at the end of said shaft, includes a hub adapted to be mounted on and keyed axially to said shaft, said shaft being surrounded by a hollow cylinder, locking in their adjusted relative angular position of the hollow cylinder and the shaft being assured by a retaining washer pressed against the front face of the hollow cylinder by means of a retaining screw centered on the axis of the shaft pressing the hollow cylinder axially against the hub, an annular ring centered on the axis of the shaft being surrounded by the hollow cylinder and movable axially, being adapted, during said axial movement to adjust the relative angular position of the hollow cylinder and the shaft, the device being pre-assembled to constitute a subassembly.
Advantageously, the device is pre-assembled by means of a bracket; the bracket is axial; the bracket is transversal; alternatively, the device is pre-assembled by means of a nut adapted to be cut easily cooperating with the thread of the retaining screw.
Advantageously, the annular ring has longitudinal splines on its inside surface whereby it can be constrained to rotate with said shaft whilst being movable axially and at least one tooth with helical flanks on its outside surface, said hollow cylinder having at least one spline recessed into its inside surface and adapted to receive said at least one tooth of the annular ring, the flanks of said spline being helical and in corresponding relationship with the helical flanks of said at least one tooth of the annular ring.
Alternatively, the annular ring has helical splines on its inside surface whereby it can be constrained to rotate with said shaft whilst being movable axially and at least one tooth with straight or reverse pitch flanks on its outside surface, said hollow cylinder having at least one spline recessed into its inside surface adapted to receive said at least one tooth of the annular ring, the flanks of said spline being straight or of reverse pitch and in corresponding relationship with the straight or reverse pitch flanks of said at least one tooth of the annular ring.
Advantageously, the device is pre-assembled by the retaining screw.
Alternatively, the annular ring has on one side, i.e. on its inside surface or on its outside surface, longitudinal splines and, on the other side, at least one tooth with helical flanks, said hollow cylinder or said hub having at least one spline adapted to receive said at least one tooth of the annular ring, the flanks of said spline being helical and in corresponding relationship with the helical flanks of said at least one tooth of the annular ring, said longitudinal splines enabling the annular ring to be mounted on the part, either the hollow cylinder or the hub, that does not include said at least one spline but instead longitudinal splines complementary with the longitudinal splines of the annular ring.
Advantageously, said hub is also locked to the shaft in a predetermined angular position so as to rotate with the shaft; the axial locking of the hub is obtained by means of a bearing surface on the shaft having splines that extend the spline
REFERENCES:
patent: 1903162 (1933-03-01), Baur et al.
patent: 4624596 (1986-11-01), Eckendorff
patent: 4668116 (1987-05-01), Ito
patent: 5090365 (1992-02-01), Hotta et al.
patent: 5094117 (1992-03-01), Mikel et al.
patent: 5141090 (1992-08-01), Trojan
patent: 5176043 (1993-01-01), Eckendorff
patent: 5308183 (1994-05-01), Stegeman et al.
patent: 5356236 (1994-10-01), Duboue
Kim Harry C.
Societe de Recherches, d'Etudes et de Valorisation
LandOfFree
Adjustable coupling device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Adjustable coupling device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adjustable coupling device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1957664