FR2509237A1 - System for converting cars to four-wheel drive - uses existing car components within separate cylindrical housing - Google Patents

Abstract

The system converts front-wheel drive cars to four-wheel drive. It uses conventional 'citroen' RTM components assembled together in a separate cylindrical housing, which is supported by a mounting (7). The housing receives output shaft ferrules (6) and carries a box (1A) which contains a modified 'citroen' RTM gear selection fork (1D). The fork actuates a synchromesh gear (2) which engages a planetary gear wheel (3), connected to one of the output shafts (4). The latter pass through the ferrules supported in the housing by ball bearings (5). They are connected to drive shafts (4A) via universal joints (4B).

Description

D E S C R I P T I O N

  a / CRABOTAGE SYSTEM using CITROEN parts b / The invention is mainly in the automotive field, May *:

  can find industrial and agricultural applications.

  c / The state of the art _antérieur is almost zero because the existing interconnections are always arranged in the same Io casing as the reduction gearbox, on all-terrain or agricultural or military vehicles In addition, the fact of using massi parts CITROEN must give me the first of the gen Here, it is a dog clutch which adds to a socket

  force on a passenger car transaxle, may

  I 5 ner a rear axle which will give it 4 wheel drive.

  d / The present invention relates mainly to passenger cars equipped with a PTO on a transaxle and a second axle (AV or AR), both of which must be interchangeable

  at will to have two or four wheel drive.

  It also relates to slow or fixed gear, agricultural or nautical industry, a driving part of which must be able to be coupled or not to a driven part: winch, group

generator or other.

  My invention is characterized by the fact that it draws its centerpieces from a 2 or 3 hp Citroën transaxle, taking advantage of the noble metals, the lightness of these parts as well as their cost price for mass production, as well than

of the brand network.

  Citroën parts assembled by welding: planetary and synchro of 4 th axis, planetary and lower gear reducer, are, with the use of universal joints and sliding seals and Citroen differential bearings, the main trick of

this interconnection.

  The present invention is also characterized by the fact

  that it allows the drive shaft and the ar-

  bre led, despite a very high speed of rotation, thanks to the presence of the synchro The use of the clutch is

therefore not compulsory.

  4 o Such a dog clutch box is also possible with the elements drawn from a box, bridge box and bridge of a

other brand.

2-

CRABOTAGE SYSTEM.

e / Presentation of the drawing.

  1 cylindrical case 1 A control box 1 B_ control box cover 1 C selection fork axis 1 D selection fork 1 E control linkage 2 _ synchro IO 3 _ fixed pinion 4 fluted or serrated shafts (number of 2) shaft bearings 6 _ ends-casings 7 _supports-casings f / The realization is done as follows: part 1: tube bored to receive 6 and milled to receive 1 A. part 1 A: t 8 bent and bored forl C piece 1 B: t 8 the hole to fix on 1 A.

  part 1 C: Citroën fork axle with control yoke.

  piece l D: Citroën fork with modified center distance.

  room 1 E: interlock control wheelhouse.

  part 2: planetary and 4th synchro welded concentrically.

  part 3: lower gear and planetary wheel + welded axle

concentrically.

  room 4: axle exit axle (Citrogn ref: A 372-02 and derivatives).

  part 5: bearing (Citroên ref: 10482).

  part 6: differential of transaxle differential (ref Citrogn AM 371 3 B) receiving parts 4 and 5; part 7: supports bolted to the studs of part 1; part 4 A: cardan jaws coupled to 4 via 4 B. When assembly is complete, the casing 1 is closed at its two ends by the two casing tips 6, leaving only the cardan joints and the sliding joints 4 A 4 B. If we act on the lever of the wheelhouse 1 E, we slide the fork axis 1 C, so the fork 1 D which advances the sliding synchro 2, which engages on the pinion 3 fixed on the shaft 4 Now, 2 and 3 being engaged, the driving shaft 4 drives the driven shaft 4 Simply pull the lever in the opposite direction to decouple the two shafts 4 3 - This invention can be useful in the case of 'a car

  passenger equipped with a PTO on the transaxle.

  This PTO drives the cra botage system which can rotate at will either an additional bridge or a winch or anything else.

  also be used in agriculture, industry.

2509237-

R E V E N I I C A T I O N S

CRABOTAGE SYSTEM

Claims (4)

Claim 1: Belonging to the automotive field, the invention is characterized by a "dog clutch system" produced from parts taken from a "2 or 3 hp CITROEN" transaxle which, assembled in an assembly independent, make it possible to transform a standard front-wheel drive passenger vehicle into a four-wheel drive vehicle. The "dog clutch system" is implemented as follows IO 1 / Cylindrical casing: bored tube to receive 6 and milled Puur to receive 1 A 1 A / control case: bent and bored sheet receiving 1 C. l B / control boot cover : perforated plate fixed on 1 A 1 C / axis of selection fork. I 5 1 D / selection range: modified "CITROEN" range. 1 E / control wheelhouse.   2 / Synchro player: planetary bridge and 4th synchro welded concentrically.   3 / Fixed gear: lower boot reducer wheel and   planetary + axle exit concentrically welded.   4 / Splined or serrated shaft: axle output shaft.   / Shaft bearing: they are double rows of bil Ies   in order to keep the trees perfectly in line (4).   6 / End caps-housings: are two differential bearings.   7 / Housing support: cradles connecting-a base fixed on the   "2 or 3 hp CITROEN" platform with end caps (6). Claim 2:   This g dog clutch system "constitutes the continuation of the mechanical chain   picnic starting with the "PTO on boot-deck" of   "2 or 3 cv-CITROEN", for the second element the "Craboà system * -   tage ", for the third element a longitudinal transmission,   for fourth element a rear axle and finally two transmitted-   cross sections identical to those mounted in series at the front. The result is a four-wheel drive automobile.