US1822793A - Traction device for wheels - Google Patents

Traction device for wheels Download PDF

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Publication number
US1822793A
US1822793A US418621A US41862130A US1822793A US 1822793 A US1822793 A US 1822793A US 418621 A US418621 A US 418621A US 41862130 A US41862130 A US 41862130A US 1822793 A US1822793 A US 1822793A
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US
United States
Prior art keywords
rim
wheel
blade
wheels
traction
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
Application number
US418621A
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English (en)
Inventor
Zerbi Tranquillo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fiat SpA
Original Assignee
Fiat SpA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fiat SpA filed Critical Fiat SpA
Application granted granted Critical
Publication of US1822793A publication Critical patent/US1822793A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C27/00—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels
    • B60C27/02—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels extending over restricted arcuate part of tread
    • B60C27/04—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels extending over restricted arcuate part of tread the ground-engaging part being rigid
    • B60C27/045—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels extending over restricted arcuate part of tread the ground-engaging part being rigid involving retractable devices

Definitions

  • the devices which have been most commonly used for the above purpose are those belonging to the movable blade type, in which the blade is pivoted to a fulcrum and capable of rotating to the inside and to the outside and to be caught and held by suitable means either in its working position or in its position of rest.
  • this invention provides a plurality of elements arranged round the circumference of the wheel, each of which has arcuated extensions embracing a portion of the rigid supporting rim, relatively to which it can slide by turning on its aXis through 180 passing from the working position, namely the position in which it adheres to the wheel rim, to a position of rest completely tilted back- Wards.
  • rigid supporting sector-s are provided conveniently on the inner face of the wheel rim, on which they are capable of rotating, suitable locking means holding the elements in operative and inoperative positions respectively.
  • Each adhesion or traction member may be 50 provided in the cross direction with two or more wings or projections, rigidly connected together by means of suitable longitudinal reinforcing ribs.
  • Figure 1 is an axial section showing a wire spoked wheel provided with an adhesionblade in working position.
  • FIG. 2 is a similar section, the blade being shown in its position of rest.
  • Figure 3 is a front view of the wheel with the blade in a position corresponding to that shown in Fig. l. 7
  • 1 denotes a wire spoked wheel provided with a metallic rim 2 on 'which a usual solid rubber tyre 3 is fitted.
  • the traction member or blade 4 consists of two side wings 5 and5i adapted to grip the ground and to increase the adhesion. These wings are connected together on one side by a curved wall 6, ending above by a reinforcing rib 6.
  • two guide sectors 7 and 8 are conveniently fitted in a manner not shown on the wheel rim, said sectors reaching Within grooves 9 formed in the thickness of the blade body 4.
  • a slidable bolt 10 is provided for each of them which is capable of engaging in the positions shown in Figure 1 or Figure 2, respectively, in the openings 11, 11 and '12, 12 correspondingly formed on the blade body.
  • Tractor wheel comprising, in combination with the rim, traction members mounted on the rim and capable of transverse rotation about said rim, each of said members being constituted bv a pair of wings, having extensions which partly embrace said rim, a curved Wall for connecting said wings anda reinforcing rib on saidwall, circular sectors secured to the inner face of said rim and adapted to engage with said" extensions for guiding said, traction members during their rotation about said rim, and locking means for holding said members in their working position. outside the rim and in their position of rest inside the rim.
  • Tractor wheel comprising,in combinationwitlr the rim, traction members mounted on the rim and capable of transversefrotae tion about said rim,v each of said members being constituted by; apair of Wings, having extensions Which partly embrace saidrim, a curved wallconnecting said wings and a reinforcing rib on said.- wall, circular sectors secured: to the inner face of said rim and adapted to; engage with said extensions for guiding said traction members during their rotation about said rim, and a-bolt for looking each-traction member in-its working position outside -the rimand in its positionof rest inside the rim.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)
US418621A 1929-06-08 1930-01-04 Traction device for wheels Expired - Lifetime US1822793A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT337309X 1929-06-08

Publications (1)

Publication Number Publication Date
US1822793A true US1822793A (en) 1931-09-08

Family

ID=11238081

Family Applications (1)

Application Number Title Priority Date Filing Date
US418621A Expired - Lifetime US1822793A (en) 1929-06-08 1930-01-04 Traction device for wheels

Country Status (3)

Country Link
US (1) US1822793A (fr)
FR (1) FR682005A (fr)
GB (1) GB337309A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4694872A (en) * 1985-08-05 1987-09-22 Granryd Thorvald G High performance drive tire arrangement for agricultural tractors

Also Published As

Publication number Publication date
FR682005A (fr) 1930-05-22
GB337309A (en) 1930-10-30

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