US2557853A - Track aligner - Google Patents
Track aligner Download PDFInfo
- Publication number
- US2557853A US2557853A US43651A US4365148A US2557853A US 2557853 A US2557853 A US 2557853A US 43651 A US43651 A US 43651A US 4365148 A US4365148 A US 4365148A US 2557853 A US2557853 A US 2557853A
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- US
- United States
- Prior art keywords
- track
- tracks
- tractor
- guide
- wear
- 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
- 238000010276 construction Methods 0.000 description 2
- 208000006555 Metatarsal Valgus Diseases 0.000 description 1
- 208000005408 Metatarsus Varus Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
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
- B62D55/084—Endless-track units or carriages mounted separably, adjustably or extensibly on vehicles, e.g. portable track units
- B62D55/0842—Tracked vehicle with track carriages suspended on three points, e.g. by an equaliser bar
Definitions
- This invention relates to improvements in stabilizers for use on track-laying tractors.
- the principal object of this invention is to provide means for maintainingthe individual tracks of a track-lay-er in parallel alignment and to prevent any twisting action of the tractors and to prevent them from toeing in or out, thus eliminating strain on the track links, the axle, and the driving sprockets.
- a further object is to produce a device of this character which may be attached to an ordinary tractor of the track-laying type, without materially altering its construction, one which will be easy to service, and one wherein adjustments may be readily made to accommodate for wear.
- Fig. 1' is a front elevation of my device, as the same appears when secured to a track-laying tractor;
- Fig. 2 is a top-plan view of Fig. 1 and on a reduced scale
- Fig. 3 is a cross-sectional view, taken on the line 3-3 of Fig. 1, and
- Fig. 4 is a cross-sectional view, taken on the line 4-4 of Fig. 3 and on an enlarged scale.
- Track-laying tractors usually consist of a frame, upon which the power unit is mounted, which unit drives a rear axle having a pair of sprockets, and upon which are pivotally mounted the track-laying elements.
- Applicant has devised means for maintaining the front portions of the tracks in alignment, yet allowing for up-and-down movement of the tracks individually, at the same time maintaining the tracks against canting or twisting, thus relieving the aforementioned strains.
- each of the frame members I secure a bracket, as shown at I2 and I3. As each of these brackets is the same, but one will be described.
- bracket I3 has a T head I4, extending therefrom, so as to provide forwardly and rearwardlyextending portions, which are slidably engaged by wear plates I6 and I'I, mounted in a housing I8, formed on the end of a spreader bar I 9, which is secured to the frame of the tractor 5.
- the wear plate I6 is secured in the housing in any desired manner, while the wear plate Il is adjustably held through the medium of a bolt 2 I, freely movable through the housing and having a spring 22, inter-positioned between the housing and the head of the bolt.
- Adjusting bolts 23, threadedly positioned in the housing, have their ends bearing against the wear plate, the purpose of which will be later seen.
- Both of these wear plates have a hardened surface, as shown at 24.
- the adjustment is such that a nice, sliding contact is maintained between the rubbing surfaces and, as wear occurs, adjustment of the bolts will compensate for the wear.
- this arrangement permits the T heads to move upwardly and downwardly with the movement of the forward end of the tracks, about the axis of the shaft 6, and yet prevents the forward ends of the tracks from approaching each other, thus keeping them in alignment and, at the same time, this arrangement will eliminate any tendency of the .tracks to twist out of their parallel alignment with the ground.
- a pair of rigidly xed parallel side members a pair of vertically disposed guide brackets each carried by a respective side member, said guide brackets projecting from the adjacent forward ends of said side members and having rectilinear guide heads extending Vertically in fixed parallel relation, a spreader member xed immovably to the tractor body and'extending transversely of the forward end of said tractor between said guide brackets, and vertical guide means rigidly xed to the ends of said spreader member and engaging around said guide heads to maintain said guide brackets in constant parall lel relation.
- a tractor a pair of rigidly xed parallel side members, a pair of vertically disposed guide brackets each carried by a respective side mem-- ber, said guide brackets projecting from the adjacent forward ends of said side members and having rectilinear guide heads extending Vertically in fixed parallel relation, a spreader member xed immovably to the tractor body and extending transversely of the forward end of said tractor between said guide brackets, guide sleeves rigidly fixed vertically to the ends of said spreader bar and surrounding said guide heads, wear plates interposed between the walls of said guide sleeves and said vertical guide heads, and means to adjust said wear plates.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Soil Working Implements (AREA)
Description
June 19, 1951 D, R, ZANG 2,557,853
TRACK ALIGNER Filed Aug. 11, 1948 JNVENToR. Day/'d Zang BY I .L`M
Aff'y Patented June 19, 1951 UNITED STATES PATENT OFFICE TRACK ALIGNER David R. Zang, Oakland, Calif.
Application August 11, 1948, Serial No. 43,651
2 Claims. l
This invention relates to improvements in stabilizers for use on track-laying tractors.
The principal object of this invention is to provide means for maintainingthe individual tracks of a track-lay-er in parallel alignment and to prevent any twisting action of the tractors and to prevent them from toeing in or out, thus eliminating strain on the track links, the axle, and the driving sprockets.
A further object is to produce a device of this character which may be attached to an ordinary tractor of the track-laying type, without materially altering its construction, one which will be easy to service, and one wherein adjustments may be readily made to accommodate for wear.
Other objects and advantages will be apparent during the course of the following description.
In the accompanying drawings forming a part of this specification and in which like numerals are employed to designate like parts throughout the same,
Fig. 1' is a front elevation of my device, as the same appears when secured to a track-laying tractor;
Fig. 2 is a top-plan view of Fig. 1 and on a reduced scale;
Fig. 3 is a cross-sectional view, taken on the line 3-3 of Fig. 1, and
Fig. 4 is a cross-sectional view, taken on the line 4-4 of Fig. 3 and on an enlarged scale.
Track-laying tractors usually consist of a frame, upon which the power unit is mounted, which unit drives a rear axle having a pair of sprockets, and upon which are pivotally mounted the track-laying elements.
Inasmuch as these tracks rock about the axis of the rear axles, they have an up-and-down movement at their forward ends, and as these forward ends are practically unsupported, other than by a loosely-mounted body-supported light spring, there is a tendency for the front of the tracks to toe in or out and thus to get out of alignment, which results in excessive strains being applied to the rear axle and the driving sprockets, as well as the links of the track.
Applicant has devised means for maintaining the front portions of the tracks in alignment, yet allowing for up-and-down movement of the tracks individually, at the same time maintaining the tracks against canting or twisting, thus relieving the aforementioned strains.
In the accompanying drawings, wherein, for the purpose of illustration is shown a preferred embodiment of my invention, the tractor body, as a whole, is designated by the numeral 5, and
the rear axle by the numeral 6, which axle, in turn, drives ground-engaging tracks I and 8.
These tracks are, in turn, supported upon frame members, as shown at 9 and I I respectively.
To each of the frame members I secure a bracket, as shown at I2 and I3. As each of these brackets is the same, but one will be described.
Referring now to Fig. 3, it will be noted that the bracket I3, has a T head I4, extending therefrom, so as to provide forwardly and rearwardlyextending portions, which are slidably engaged by wear plates I6 and I'I, mounted in a housing I8, formed on the end of a spreader bar I 9, which is secured to the frame of the tractor 5.
The wear plate I6 is secured in the housing in any desired manner, while the wear plate Il is adjustably held through the medium of a bolt 2 I, freely movable through the housing and having a spring 22, inter-positioned between the housing and the head of the bolt.
Adjusting bolts 23, threadedly positioned in the housing, have their ends bearing against the wear plate, the purpose of which will be later seen.
Both of these wear plates have a hardened surface, as shown at 24.
The result of this construction is that, when the bolts 23 are adjusted so as to position the wear plate II against the T head I4, the opposite side of the T head will, in turn, be pressed against the wear plate I6. v
The adjustment is such that a nice, sliding contact is maintained between the rubbing surfaces and, as wear occurs, adjustment of the bolts will compensate for the wear.
It will be apparent that this arrangement permits the T heads to move upwardly and downwardly with the movement of the forward end of the tracks, about the axis of the shaft 6, and yet prevents the forward ends of the tracks from approaching each other, thus keeping them in alignment and, at the same time, this arrangement will eliminate any tendency of the .tracks to twist out of their parallel alignment with the ground.
It is to be understood that the form of my invention herewith shown and described is to be taken as a preferred example of the same and that various changes relative to the material, size, shape and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claims.
Having thus described my invention, I claim:
l. In a tractor, a pair of rigidly xed parallel side members, a pair of vertically disposed guide brackets each carried by a respective side member, said guide brackets projecting from the adjacent forward ends of said side members and having rectilinear guide heads extending Vertically in fixed parallel relation, a spreader member xed immovably to the tractor body and'extending transversely of the forward end of said tractor between said guide brackets, and vertical guide means rigidly xed to the ends of said spreader member and engaging around said guide heads to maintain said guide brackets in constant parall lel relation.
2. In a tractor, a pair of rigidly xed parallel side members, a pair of vertically disposed guide brackets each carried by a respective side mem-- ber, said guide brackets projecting from the adjacent forward ends of said side members and having rectilinear guide heads extending Vertically in fixed parallel relation, a spreader member xed immovably to the tractor body and extending transversely of the forward end of said tractor between said guide brackets, guide sleeves rigidly fixed vertically to the ends of said spreader bar and surrounding said guide heads, wear plates interposed between the walls of said guide sleeves and said vertical guide heads, and means to adjust said wear plates.
DAVID R. ZANG.
REFERENCES CITED TheV following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 2,223,802 Heaslet Dec. 3, 1940 FOREIGN PATENTS Number Country Date 474,958 Germany Apr. 16, 1929
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US43651A US2557853A (en) | 1948-08-11 | 1948-08-11 | Track aligner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US43651A US2557853A (en) | 1948-08-11 | 1948-08-11 | Track aligner |
Publications (1)
Publication Number | Publication Date |
---|---|
US2557853A true US2557853A (en) | 1951-06-19 |
Family
ID=21928203
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US43651A Expired - Lifetime US2557853A (en) | 1948-08-11 | 1948-08-11 | Track aligner |
Country Status (1)
Country | Link |
---|---|
US (1) | US2557853A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2845725A (en) * | 1953-05-14 | 1958-08-05 | Earl J Robishaw | Traction vehicle |
US3847240A (en) * | 1972-08-25 | 1974-11-12 | Caterpillar Tractor Co | Fork and blade guide assembly |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE474958C (en) * | 1927-05-21 | 1929-04-16 | Trakford Company | Connection of the front axle, suspended swinging on the engine support frame of a caterpillar vehicle, to the front ends of the caterpillar guide frame by means of a handlebar |
US2223802A (en) * | 1938-05-24 | 1940-12-03 | Cleveland Tractor Co | Front end suspension for tracklaying tractors |
-
1948
- 1948-08-11 US US43651A patent/US2557853A/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE474958C (en) * | 1927-05-21 | 1929-04-16 | Trakford Company | Connection of the front axle, suspended swinging on the engine support frame of a caterpillar vehicle, to the front ends of the caterpillar guide frame by means of a handlebar |
US2223802A (en) * | 1938-05-24 | 1940-12-03 | Cleveland Tractor Co | Front end suspension for tracklaying tractors |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2845725A (en) * | 1953-05-14 | 1958-08-05 | Earl J Robishaw | Traction vehicle |
US3847240A (en) * | 1972-08-25 | 1974-11-12 | Caterpillar Tractor Co | Fork and blade guide assembly |
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