Class 305/139 - With intermediate upper track run support

Subclass of Class 305 - Wheel substitutes for land vehicles
Definition: Apparatus including holding means at the middle place of
No. of patents: 27
Last issue date: 07/03/2007

Number	Title	Issue Date
7237853	Support roller of crawler type traveling apparatus The invention provides a support roller of a crawler type traveling apparatus which can prevent a rotational resistance from being increased by the soil or the like, and can stably achieve a function serving as the support roller for a long time. The invention provi...	07/03/2007
7210750	Crawler belt link grinding system and crawler structure Vibration or the like is prevented for long-term use by normalizing, with operation continuing, a tread of a crawler belt link through grinding in an early stage where uneven wear such as corrugated wear occurs. With a crawler belt of a crawler vehicle wound, an abr...	05/01/2007
7182414	Undercarriage equipped with non-steel type rubber crawler using chain action The present invention relates to an undercarriage equipped with a coreless rubber crawler in a chain drive configuration, and more particularly, to a track system undercarriage for a skid loader in which an auxiliary axle and an auxiliary sprocket are provided to so...	02/27/2007
7066289	Track support system for a crawler Mud and sand are prevented from entering between support-receiving members since both ends of the roller shaft are constructed so as to be held at both sides thereof when providing the upper roller on the travelling body frame secured in a civil engineering apparatu...	06/27/2006
6921304	Amphibious vehicle The amphibious vehicle is a motorized vehicle capable of travel on land as well as in the water. The amphibious vehicle has a boat-like hull, and a caterpillar track assembly mounted along each side by hinges. The tracks are arranged so that they can be rotated betw...	07/26/2005
6726293	Tracked mobile machine with star carrier roller and method of assembly Star carrier roller assemblies have been used in certain tracked mobile machines, such as those used in the timber industry, that must operate in cold weather and/or over rough terrain. Due to interaction of the star carrier roller assembly with a track chain assemb...	04/27/2004
6457786	Roller assembly of an undercarriage assembly having an integrated retainer and thrust bushing and method for making the same A roller assembly for an undercarriage of a work machine has a roller rim having central passage defined therein. The roller assembly also has a roller shaft positioned in the central passage of the roller rim. Moreover, the roller assembly has a retainer...	10/01/2002
6435629	Roller assembly of an undercarriage assembly having a roller hub configured to receive rims of varying sizes and method for making the same A roller assembly for an undercarriage of a work machine is configurable in either a first roller configuration or a second roller configuration. The roller assembly has a roller shaft and a roller hub journalled for rotation about the roller shaft. A fir...	08/20/2002
6422664	Carrier roller assembly of an undercarriage assembly of a work machine having a roller shaft with integrated thurst surfaces A roller assembly for an undercarriage of a work machine has a roller rim having (i) central passage, and (ii) an inwardly extending annular flange defined therein. The inwardly extending annular flange extends into the central passage so as to define a f...	07/23/2002
6364438	Press fit roller assemblies of an undercarriage assembly of a work machine and method of making the same A roller assembly for an undercarriage of a work machine has a roller rim having central passage defined therein with (i) a first end of the central passage of the roller rim defining a first access opening, and (ii) a second end of the central passage of...	04/02/2002
6203124	Crawler undercarriage An undercarriage for a construction machine having a support frame and at least one carrier roller positioned on an upper surface of the support frame for providing upper guidance to the chain or band. The carrier roller is constructed from two bearing pi...	03/20/2001
6033043	Crawler type drive apparatus This invention is to suppress repeated striking noises as generated by a crawler belt (29) when taken up onto a drive sprocket (25) in a polygonally bent shape. A crawler belt support block (34) is fixedly mounted on top of an upper reinforcing plate (19)...	03/07/2000
5941326	Guide rail for a crawler track A crawler track guide rail having an upper elongated surface engagable with the shoes of a crawler track, a lower surface engagable with a crawler track support frame, and a foot which extends downward into the frame to transfer load resulting from the en...	08/24/1999
5899164	Tracked, amphibious marsh vehicle with improved track and drive arrangement An improved marsh craft construction uses spaced apart pontoons with endless belts (e.g.,. rubber) that encircle the pontoons and ride upon a rail system. Lugs are fastened to the belts for sliding against the rails. Drive wheels have cylindrical pins tha...	05/04/1999
5749423	Belted work machine A heavy duty belt laying work machine includes a frame, a driver wheel mounted in supporting relation to the frame on each lateral side thereof, an idler wheel assembly disposed on each lateral side of the frame. The idler wheel assembly includes an idler...	05/12/1998
5462345	Resilient wheels with reinforcing rings A belted undercarriage assembly for a belt laying track machine includes a frame, an endless belt for supporting the machine, a plurality of spaced apart resilient wheels in contact with the belt, and a plurality of guide members associated with the belt....	10/31/1995
5433515	Guide rollers for flexible drive belt A pair of guide rollers contact the side surfaces of the guide blocks of an endless elastomeric track belt and guide the guide blocks into a space formed between a pair of spaced apart idler wheels. The guide rollers prevent undesirable frictional contact...	07/18/1995
4458955	Suspension arm for upper and lower track runs A tracked vehicle having propulsion imparted by two driven continuous tracks, with a plurality of suspension arms each carrying a road wheel for engagement of the lower traction run of the respective track, and one or more of the suspension arms for each ...	07/10/1984
4402555	Track-type vehicle undercarriage A track-type vehicle undercarriage comprising a track frame, a carrier rail mounted on the track frame, a track rail fixedly secured to the track frame underneath thereof, a recoil device mounted on the track frame, a support member fixedly connected to t...	09/06/1983
4383794	Frame structure for track-type vehicle A modular construction for a crawler assembly in track-type vehicles and a structural arrangement of the crawler assembly with the vehicle frame are described. In each crawler assembly there is a central side frame member which is integral with the vehicl...	05/17/1983
4301884	Track suspension and drive for snowmobile A snowmobile track suspension subframe of the slide rail type carries a track drive axle at its forward end. Such axle mounts both the track drive sprockets and the driven sprocket of a track drive chain assembly so that the entire track suspension subfra...	11/24/1981
4265494	Crawler travelling apparatus Crawler travelling apparatus in which a crawler having crawler links is windingly laid over the driving wheel and the take-up wheel, guide wheels are disposed at the frame for guiding the lower travel portion of the crawler, and the lateral outer portions...	05/05/1981
4253708	Slack control for crawler type track assemblies PCT No. PCT/US79/00253 Sec. 371 Date Apr. 20, 1979 Sec. 102(e) Date Apr. 20, 1979 PCT Filed Apr. 20, 1979 PCT Pub. No. WO80/02269 PCT Pub. Date Oct. 30, 1980. A crawler type vehicle including a main frame (10), a track frame (14), a continuous track (24) ...	03/03/1981
4194584	Variable terrain vehicle A vehicle undercarriage includes a pair of track laying assemblies each provided with at least two pairs of wheels having an endless belt tread wrapped thereabout. Variation of the vehicle wheelbase is achieved upon actuation of an extend/retract device s...	03/25/1980
4083610	Bearing assembly utilizing a tapered bushing holder Each track roller of a crawler has a tapered bore in which is fitted a tapered bushing holder, and fitted within the cylindrical bore of the holder is a cylindrical bushing which journals the roller for rotation about a transverse shaft mounted on the tra...	04/11/1978
4006940	Roller frame for crawler tractor A roller frame for a crawler tractor for supporting the body portion of the tractor and including a pair of laterally spaced and parallel side rail members rigidly interconnected to form an elongated unitary member. Each of the side rail members have an u...	02/08/1977
3996810	Track supporting roller with resilient rim A rotatable track supporting member for a track-type vehicle has a hub rotatably carried upon a track frame of such vehicle and a rim which is constructed from segmented resilient material so as to reduce the amount of noise generated by the running engag...	12/14/1976

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Class 305/139 - With intermediate upper track run support