US3692132A - Improved motor sledge - Google Patents
Improved motor sledge Download PDFInfo
- Publication number
- US3692132A US3692132A US137477A US3692132DA US3692132A US 3692132 A US3692132 A US 3692132A US 137477 A US137477 A US 137477A US 3692132D A US3692132D A US 3692132DA US 3692132 A US3692132 A US 3692132A
- Authority
- US
- United States
- Prior art keywords
- frame
- frame construction
- drive belt
- sledge
- wheels
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
- B62D55/104—Suspension devices for wheels, rollers, bogies or frames
- B62D55/108—Suspension devices for wheels, rollers, bogies or frames with mechanical springs, e.g. torsion bars
Definitions
- an improved motor sledge having a hinged frame extension and limiting organs fitted against the upper surface of the drive belt and attached to the frameapproximately above the joint to prevent the drive belt from slackening at depressions, when the rear end of the frame extension rises.
- the limiting organs are two wheels rotating freely on each side of the frame around the same horizontal axis.
- the frame extension according to the invention together with the original sledge form .one entity which follows the ground. Even at abrupt depressions the front part of the sledge rises easily uphill. The steerability of such a sledge is also good since, when tilted, the flexible frame tends to assimilate to the sharpness of the curve. As the frame follows the ground, the entire length of the lengthened drive belt gets a good grip of the ground and the pulling efficiencyis good in all positions because of the limiting organs. This is also why the sledge runs very well in soft snow, which was particularly noticeable in steep uphill tests in which it was compared with fixed frame extensions. Because of the ladder structure, the hinging, and the springing, a frame extension according to the invention can be constructed with small material thickness without decreasing the durability. In this case the weight of the frame extension remains as small as possible and the surface pressure of the lengthened drive belt considerably smaller than that in the previously known solutions.
- FIG. 1 shows a perspective view of the frame extension
- FIG. 2 shows the mounting scheme for the same frame-extension
- FIG. 3 shows a motor sledge according to the invention at difl'erent ground positions.
- the stiffness of the flexibility can be easily regulated according to the ground, r
- the frame extension can be hinged to the sledge, frame even without the attachment pieces 3 that elevate the frame. In this case the ability of the frame extension to bend upwards, however, decreases when the inner space of the frame lowers.
- the frame extension can also be hinged to a separate axle behind the hindmost roller wheelsof the sledge.
- an extension according to the invention suits most known sledge brands in which the motor is in the front of the sledge.
- a frame extension according to the invention can also be fitted to motor sledges with two belts.
- An improved motor sledge of the type having a rigid frame construction; steering means attached to the front part of the frame construction for pivotable movement around a substantially vertical axis; a plurality of wheels rotatably mounted under the frame construction; a supplementary frame portion attached to the rear end of the frame construction for flexible pivotable movement around a horizontal axis therein and further provided with wheels; at least one common endless drive belt fitted around the wheels; a power 3 source fixed to the frame construction; and power ing.
- the improved motor sledgeof claim 1 in which the means for preventing slackening of the drive belt comprise a pair of coaxial rolls rotatably mounted on opposite sides of the frame construction for preventing a pair of drive belts from slackening.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Escalators And Moving Walkways (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI1168/70A FI54887C (fi) | 1970-04-27 | 1970-04-27 | Snoeskoter |
Publications (1)
Publication Number | Publication Date |
---|---|
US3692132A true US3692132A (en) | 1972-09-19 |
Family
ID=8505207
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US137477A Expired - Lifetime US3692132A (en) | 1970-04-27 | 1971-04-26 | Improved motor sledge |
Country Status (4)
Country | Link |
---|---|
US (1) | US3692132A (fi) |
CA (1) | CA934794A (fi) |
FI (1) | FI54887C (fi) |
SE (1) | SE370052B (fi) |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3788412A (en) * | 1972-05-17 | 1974-01-29 | Coleman Co | Snowmobile suspension system |
US3830323A (en) * | 1971-08-13 | 1974-08-20 | Polar Metal Plast | Motor sleigh drive track arrangement |
US5062493A (en) * | 1989-07-24 | 1991-11-05 | Leitner, S.P.A. | Tracked vehicle and in particular one for the preparation of ski slopes |
WO2001058744A1 (en) * | 2000-02-10 | 2001-08-16 | Denis Morin | A long track mountain snowmobile and a track therefor |
US6435290B1 (en) | 2000-12-20 | 2002-08-20 | Mmmj Inc. | Personal tracked vehicle |
US6510913B1 (en) | 2000-02-10 | 2003-01-28 | Bombardier Inc. | Long track mountain snowmobile and a track therefor |
US6609771B2 (en) | 2000-02-10 | 2003-08-26 | Bombardier Inc. | Long track mountain snowmobile and a track therefor |
US20050061411A1 (en) * | 2003-09-08 | 2005-03-24 | Gunter Herbert D. | Track tensioner for a wheel-driven skid steer |
US20070029877A1 (en) * | 2005-08-02 | 2007-02-08 | Raytheon Company | Load bearing crawler assembly |
US20090007461A1 (en) * | 2006-10-06 | 2009-01-08 | Rolic Invest Sarl | Tracked vehicle |
US20090013562A1 (en) * | 2007-05-25 | 2009-01-15 | Rolic Invest Sarl | Snow groomer |
US20090050390A1 (en) * | 2007-08-24 | 2009-02-26 | Bombardier Recreational Products Inc. | Articulated suspension assembly for a tracked vehicle |
US20100225160A1 (en) * | 2007-06-21 | 2010-09-09 | Rolic Invest S.Ar.L | Crawler vehicle track grouser |
US20100307033A1 (en) * | 2007-10-31 | 2010-12-09 | Rolic Invest S.Ar.L. | Rotary snow tiller for grooming ski slopes |
US20110000107A1 (en) * | 2007-10-31 | 2011-01-06 | Rolic Invest S.Ar.L. | Rotary snow tiller for grooming ski slopes |
US20110005107A1 (en) * | 2007-10-30 | 2011-01-13 | Rolic Invest S.Ar.L. | Rotary snow tiller and ski slope grooming method |
US20110035968A1 (en) * | 2007-10-30 | 2011-02-17 | Rolic Invest S.Ar.L. | Hitch device for connecting a groomer vehicle and a ski slope snow grooming implement, and control method employing such a hitch device |
US20110163595A1 (en) * | 2008-05-29 | 2011-07-07 | Rolic Invest S.A.R.L. | Snow groomer track and snow groomer featuring such a track |
US8839533B2 (en) | 2009-02-18 | 2014-09-23 | Snowgrolic S.A.R.L. | Snowgroomer including a winch assembly to aid handling of the snowgroomer on steep slopes, and method of operating the winch assembly |
WO2017056057A3 (en) * | 2015-09-30 | 2017-12-14 | Brp Finland Oy | Snowmobile rear suspension |
-
1970
- 1970-04-27 FI FI1168/70A patent/FI54887C/fi active
-
1971
- 1971-04-23 CA CA111257A patent/CA934794A/en not_active Expired
- 1971-04-26 SE SE05376/71A patent/SE370052B/xx unknown
- 1971-04-26 US US137477A patent/US3692132A/en not_active Expired - Lifetime
Cited By (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3830323A (en) * | 1971-08-13 | 1974-08-20 | Polar Metal Plast | Motor sleigh drive track arrangement |
US3788412A (en) * | 1972-05-17 | 1974-01-29 | Coleman Co | Snowmobile suspension system |
US5062493A (en) * | 1989-07-24 | 1991-11-05 | Leitner, S.P.A. | Tracked vehicle and in particular one for the preparation of ski slopes |
US6609771B2 (en) | 2000-02-10 | 2003-08-26 | Bombardier Inc. | Long track mountain snowmobile and a track therefor |
US6510913B1 (en) | 2000-02-10 | 2003-01-28 | Bombardier Inc. | Long track mountain snowmobile and a track therefor |
WO2001058744A1 (en) * | 2000-02-10 | 2001-08-16 | Denis Morin | A long track mountain snowmobile and a track therefor |
US6772852B2 (en) | 2000-02-10 | 2004-08-10 | Bombardier Recreational Products Inc. | Long track mountain snowmobile and a track therefor |
US20060070782A1 (en) * | 2000-02-10 | 2006-04-06 | Bombardier Recreational Products Inc. | Long track mountain snowmobile and track therefor |
US6435290B1 (en) | 2000-12-20 | 2002-08-20 | Mmmj Inc. | Personal tracked vehicle |
US20050061411A1 (en) * | 2003-09-08 | 2005-03-24 | Gunter Herbert D. | Track tensioner for a wheel-driven skid steer |
US7083241B2 (en) * | 2003-09-08 | 2006-08-01 | Gunter Herbert D | Track tensioner for a wheel-driven skid steer |
US20070029877A1 (en) * | 2005-08-02 | 2007-02-08 | Raytheon Company | Load bearing crawler assembly |
US7464997B2 (en) * | 2005-08-02 | 2008-12-16 | Raytheon Company | Load bearing crawler assembly |
US20090007461A1 (en) * | 2006-10-06 | 2009-01-08 | Rolic Invest Sarl | Tracked vehicle |
US7740094B2 (en) | 2007-05-25 | 2010-06-22 | Rolic Invest S.A.R.L. | Snow groomer |
US20090013562A1 (en) * | 2007-05-25 | 2009-01-15 | Rolic Invest Sarl | Snow groomer |
US8388072B2 (en) | 2007-06-21 | 2013-03-05 | Rolic Invest S.Ar.L. | Crawler vehicle track grouser |
US20100225160A1 (en) * | 2007-06-21 | 2010-09-09 | Rolic Invest S.Ar.L | Crawler vehicle track grouser |
US7802645B2 (en) * | 2007-08-24 | 2010-09-28 | Bombardier Recreational Products Inc. | Articulated suspension assembly for a tracked vehicle |
US20090050390A1 (en) * | 2007-08-24 | 2009-02-26 | Bombardier Recreational Products Inc. | Articulated suspension assembly for a tracked vehicle |
US8701312B2 (en) | 2007-10-30 | 2014-04-22 | Snowgrolic S.Ar.L. | Hitch device for connecting a groomer vehicle and a ski slope snow grooming implement, and control method employing such a hitch device |
US20110005107A1 (en) * | 2007-10-30 | 2011-01-13 | Rolic Invest S.Ar.L. | Rotary snow tiller and ski slope grooming method |
US20110035968A1 (en) * | 2007-10-30 | 2011-02-17 | Rolic Invest S.Ar.L. | Hitch device for connecting a groomer vehicle and a ski slope snow grooming implement, and control method employing such a hitch device |
US8413353B2 (en) | 2007-10-30 | 2013-04-09 | Rolic Invest S.Ar.L. | Hitch device for connecting a groomer vehicle and a ski slope snow grooming implement, and control method employing such a hitch device |
US8393095B2 (en) | 2007-10-30 | 2013-03-12 | Rolic Invest S.AR. L. | Rotary snow tiller and ski slope grooming method |
US20100307033A1 (en) * | 2007-10-31 | 2010-12-09 | Rolic Invest S.Ar.L. | Rotary snow tiller for grooming ski slopes |
US8387288B2 (en) | 2007-10-31 | 2013-03-05 | Rolic Invest S.Ar.L. | Rotary snow tiller for grooming ski slopes |
US8307573B2 (en) | 2007-10-31 | 2012-11-13 | Rolic Invest S.A.R.L. | Rotary snow tiller for grooming ski slopes |
US20110000107A1 (en) * | 2007-10-31 | 2011-01-06 | Rolic Invest S.Ar.L. | Rotary snow tiller for grooming ski slopes |
US20110163595A1 (en) * | 2008-05-29 | 2011-07-07 | Rolic Invest S.A.R.L. | Snow groomer track and snow groomer featuring such a track |
US8757736B2 (en) | 2008-05-29 | 2014-06-24 | Snowgrolic S. AR. L. | Snow groomer track and snow groomer featuring such a track |
US8839533B2 (en) | 2009-02-18 | 2014-09-23 | Snowgrolic S.A.R.L. | Snowgroomer including a winch assembly to aid handling of the snowgroomer on steep slopes, and method of operating the winch assembly |
WO2017056057A3 (en) * | 2015-09-30 | 2017-12-14 | Brp Finland Oy | Snowmobile rear suspension |
US10814935B2 (en) | 2015-09-30 | 2020-10-27 | Bombardier Recreational Products Inc. | Snowmobile rear suspension |
Also Published As
Publication number | Publication date |
---|---|
SE370052B (fi) | 1974-09-30 |
CA934794A (en) | 1973-10-02 |
FI54887C (fi) | 1979-04-10 |
FI54887B (fi) | 1978-12-29 |
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