Source: http://www.google.com/patents/US6057617?dq=5527183
Timestamp: 2017-05-23 14:10:01
Document Index: 14083447

Matched Legal Cases: ['art.\n3', 'art.\n16', 'art 13', 'art 13', 'art 19', 'art 19', 'art 19', 'art 19', 'art 19', 'art 19']

Patent US6057617 - Drive device with brake incorporated for an electrically operated vehicle - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsA drive device for an electrically operated vehicle, in particular a wheelchair, having at least one rim with rim well and actual shaft wherein a brake is located in a brake space defined in part by a gap between a pair of spaced part bearings on the axle shaft of the device....http://www.google.com/patents/US6057617?utm_source=gb-gplus-sharePatent US6057617 - Drive device with brake incorporated for an electrically operated vehicleAdvanced Patent SearchTry the new Google Patents, with machine-classified Google Scholar results, and Japanese and South Korean patents.Publication numberUS6057617 APublication typeGrantApplication numberUS 09/276,070Publication dateMay 2, 2000Filing dateMar 25, 1999Priority dateJan 23, 1995Fee statusPaidAlso published asEP0804347A1, EP0804347B1, EP0804347B2, US5920136, WO1996022895A1Publication number09276070, 276070, US 6057617 A, US 6057617A, US-A-6057617, US6057617 A, US6057617AInventorsEgon SchmidOriginal AssigneeSchmid; EgonExport CitationBiBTeX, EndNote, RefManPatent Citations (6), Referenced by (19), Classifications (29), Legal Events (3) External Links: USPTO, USPTO Assignment, EspacenetDrive device with brake incorporated for an electrically operated vehicle
US 6057617 AAbstract
A drive device for an electrically operated vehicle, in particular a wheelchair, having at least one rim with rim well and actual shaft wherein a brake is located in a brake space defined in part by a gap between a pair of spaced part bearings on the axle shaft of the device.
1. A drive device for an electrically operated vehicle comprises an axle shaft disposed alone an axis A; at least one rim connected to the axle shaft for rotation therewith, said at least one rim having a rim well wherein said rim well and said axle shaft define therebetween an annular channel; an inner housing ring positioned in said annular channel disposed along an axis B which is substantially parallel to axis A and axially dividing said annular channel into a motor space and a brake space, said inner housing ring being supported on the axle shaft by a pair of bearings axially displaced on the axle shaft along axis A and defining therebetween in said brake space a gap; and a brake located in said brake space and at least in part in said gap proximate to and between said pair of bearings.
2. A device according to claim 1 wherein said rotor includes a rotor part and a stator part.
3. A device according to claim 2 wherein the rotor part is clamped between a shoulder formed on an inner face of the rim well and a pressure ring.
4. A device according to claim 3 wherein a seal is arranged between the pressure ring and the inner housing ring.
5. A device according to claim 1 wherein the brake includes a plurality of brake discs projecting into the brake space between a plurality of brake rings.
6. A device according to claim 5 wherein each of the plurality of brake discs is seated on the axle shaft and is displaceable along the axis A of the axle shaft.
7. A device according to claim 6 wherein each of said plurality of brake discs is mounted on the axle shaft by means of a splined connection.
8. A device according to claim 7 wherein each of said plurality of brake rings is mounted on the inner housing ring by means of a splined connection.
9. A device according to claim 5 wherein each of said plurality of brake rings is mounted on the inner housing ring by means of a splined connection.
10. A device according to claim 9 wherein the brake rings include an outer brake ring and a spring acts on the outer brake ring for moving the brake rings along the axis A of the axle shaft.
11. A device according to claim 10 wherein the outer brake ring is actuated by a magnetic coil.
12. A device according to claim 11 wherein the magnetic coil is located in an annular space defined by a ferrite ring between the inner housing ring and the axle shaft.
13. A device according to claim 10 wherein the outer brake ring is connected to a device for manually actuating the brake.
14. A drive device for an electrically operated vehicle comprises an axle shaft disposed along an axis A; at least one rim connected to the axle shaft for rotation therewith, said at least one rim having a rim well wherein said rim well and said axle shaft define therebetween an annular channel; an inner housing ring positioned in said annular channel disposed among an axis B which is substantially parallel to axis A and axially dividing said annular channel into a motor space and a brake space, said inner housing ring being supported on the axle shaft by a pair of bearings axially displaced on the axle shaft along axis A and defining therebetween in said brake space a gap; and a brake located in said brake space and at least in part in said gap proximate to said pair of bearings wherein said brake comprises a plurality of brake rings and a plurality of brake discs alternately located within said brake space.
15. A device according to claim 14 wherein said motor includes a rotor part and a stator part.
16. A device according to claim 15 wherein the rotor part is clamped between a shoulder formed on an inner face of the rim well and a pressure ring.
17. A device according to claim 16 wherein a seal is arranged between the pressure ring and the inner housing ring.
18. A device according to claim 14 wherein the brake includes a plurality of brake discs projecting into the brake space between a plurality of brake rings.
19. A device according to claim 18 wherein each of the plurality of brake discs is seated on the axle shaft and is displaceable along the axis A of the axle shaft.
20. A device according to claim 19 wherein each of said plurality of brake discs is mounted on the axle shaft by means of a splined connection.
21. A device according to claim 20 wherein each of said plurality of brake rings is mounted on the inner housing ring by means of a splined connection.
22. A device according to claim 18 wherein each of said plurality of brake rings is mounted on the inner housing ring by means of a splined connection.
23. A device according to claim 22 wherein the brake rings include an outer brake ring and a spring acts on the outer brake ring for moving the brake rings along the axis A of the axle shaft.
24. A device according to claim 23 wherein the outer brake ring is actuated by a magnetic coil.
25. A device according to claim 24 wherein the magnetic coil is located in an annular space defined by a ferrite ring between the inner housing ring and the axle shaft.
26. A device according to claim 23 wherein the outer brake ring is connected to a device for manually actuating the brake.
This is a continuation, of application Ser. No. 08/875,014, filed Jul. 16, 1997, now U.S. Pat. No. 5,920,136.
From the other side, a pressure ring 16 presses on the rotor part 13 and presses the latter against the shoulder 15, with the result that the rotor part 13 is clamped between the shoulder 15 and the pressure ring 16. The fixing or the clamping is carried out via fastening elements 17 which are indicated with dash-dotted lines.
Between the magnetic strips 18 and a stator part 19, which is likewise designed as a laminate stack, there is an air gap 20. The stator part 19 is, as its name suggests, fixed and is pushed on an inner housing ring 21 and rotationally firmly connected to the latter. To this end, this inner housing ring 21 likewise forms a shoulder 22, against which the stator part 19 stops. The stator part 19 is braced by a stepped washer 23 which, at the other end of the shoulder 22, presses on the stator part and is connected to the inner housing ring 21 via fastening elements 24 indicated by dash-dotted lines. Clearance 25.1 to accommodate the respective winding overhangs of the stator part 19 are indicated on either side of the stator part 19.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS2506146 *Apr 2, 1947May 2, 1950Thomas F BradyMotor-driven vehicle wheelUS4938321 *Jul 21, 1989Jul 3, 1990Force Control Industries, Inc.Liquid cooled brake apparatusUS5442250 *Oct 9, 1991Aug 15, 1995Stridsberg Licencing AbElectric power train for vehiclesUS5600191 *Dec 19, 1994Feb 4, 1997Yang; Chen-ChiDriving assembly for motor wheelsUS5796192 *Aug 28, 1995Aug 18, 1998Riepl; GerhardEnergy-saving electric drive for small vehiclesUS5920136 *Jan 19, 1996Jul 6, 1999Schmid; EgonDrive device with brake incorporated for an electrically operated vehicle* Cited by examinerReferenced byCiting PatentFiling datePublication dateApplicantTitleUS7108090Nov 5, 2002Sep 19, 2006Assembled Products CorporationMotorized cart with hub gear motor systemUS7148582 *Mar 31, 2005Dec 12, 2006Shimano Inc.Bicycle internal gear shifting hubUS7159677Oct 22, 2004Jan 9, 2007Ccl Industrial Motor LimitedCompact drive mechanism for electrically powered vehicleUS7383904 *Sep 14, 2005Jun 10, 2008Pihsiang Machinery Manufacturing Co., Ltd.Auxiliary power unit starting apparatus for a wheelchairUS7530415 *Jul 15, 2003May 12, 2009E-Traction Europe B.V.Wheel provided with driving meansUS7735588 *May 12, 2004Jun 15, 2010Toyota Jidosha Kabushiki KaishaSuspension system for suspending a wheel having a motor thereinUS8133143 *Oct 21, 2008Mar 13, 2012Fairfield Manufacturing Company, Inc.Gear reducer electric motor assembly with internal brakeUS8496080Sep 30, 2010Jul 30, 2013National Taiwan UniversityWheel driven mechanismUS8807251Jun 15, 2011Aug 19, 2014Invacare CorporationElectric motor and brake assemblyUS8915319Jul 8, 2013Dec 23, 2014National Taiwan UniversityWheel driven mechanismUS9233603Aug 18, 2010Jan 12, 2016E-Traction Europe B.V.Wheel provided with driving meansUS20030085064 *Nov 5, 2002May 8, 2003Turner Patrick E.Motorized cart with hub gear motor systemUS20040084235 *Jul 15, 2003May 6, 2004Special Products For Industry V.O.FWheel provided with driving meansUS20050252750 *Mar 31, 2005Nov 17, 2005Shimano Inc.Bicycle internal gear shifting hubUS20070056785 *Sep 14, 2005Mar 15, 2007Pihsiang Machinery Manufacturing Co., Ltd.Auxiliary power unit starting apparatus for a wheelchairUS20090312134 *Oct 21, 2008Dec 17, 2009Benjamin Warren SchoonGear reducer electric motor assembly with internal brakeUS20110000724 *Aug 18, 2010Jan 6, 2011Adrianus Johannes HeinenWheel Provided with Driving MeansUS20150091366 *Aug 12, 2014Apr 2, 2015Sumitomo Heavy Industries, Ltd.Wheel drive apparatus and forkliftEP1228955A3 *Jan 31, 2002Jan 22, 2003GUSTAV MAGENWIRTH GmbH &amp; Co.Brake system* Cited by examinerClassifications U.S. Classification310/77, 310/75.00R, 180/65.7, 180/65.51, 180/65.6, 188/171, 310/75.00C, 310/93International ClassificationA61G5/04, F16D55/36, F16D59/02, B60K7/00, F16D55/00, F16D65/14Cooperative ClassificationB60Y2200/84, B60K7/0007, A61G5/04, A61G5/101, B60K2007/0092, B60K2007/0038, F16D2121/22, F16D59/02, F16D2055/0058, F16D55/36, A61G5/1032European ClassificationF16D55/36, F16D59/02, A61G5/04, B60K7/00ELegal EventsDateCodeEventDescriptionMay 12, 2003FPAYFee paymentYear of fee payment: 4Sep 26, 2007FPAYFee paymentYear of fee payment: 8Nov 2, 2011FPAYFee paymentYear of fee payment: 12RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services