EP0227708A1 - Verin pour vehicule. - Google Patents

Verin pour vehicule.

Info

Publication number
EP0227708A1
EP0227708A1 EP86903220A EP86903220A EP0227708A1 EP 0227708 A1 EP0227708 A1 EP 0227708A1 EP 86903220 A EP86903220 A EP 86903220A EP 86903220 A EP86903220 A EP 86903220A EP 0227708 A1 EP0227708 A1 EP 0227708A1
Authority
EP
European Patent Office
Prior art keywords
crank
drive pinion
jack according
sleeve
spindle
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.)
Granted
Application number
EP86903220A
Other languages
German (de)
English (en)
Other versions
EP0227708B1 (fr
Inventor
Ferdinand Alten
Wolfgang Metzen
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.)
ThyssenKrupp Bilstein GmbH
Original Assignee
August Bilstein GmbH
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 August Bilstein GmbH filed Critical August Bilstein GmbH
Publication of EP0227708A1 publication Critical patent/EP0227708A1/fr
Application granted granted Critical
Publication of EP0227708B1 publication Critical patent/EP0227708B1/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
    • B66F3/16—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated actuated through bevel-wheel gearings

Definitions

  • the invention relates to a jack with a threaded spindle supporting an adjustable height of the load carrier, the upper end of which is connected in a rotationally fixed manner to a spindle wheel which is in engagement with a drive pinion which is drawn from a hand crank which is mounted in a gear housing in a pull-out safe manner via a form-fitting assembly is rotatable.
  • Such a jack is known from DE-GM 19 29 691, the form-fitting assembly of the drive pinion and hand crank being carried out by means of an Randel press-fit connection provided on the latter.
  • an annular collar is provided on the hand crank, so that it does not come back after installation can be pulled out of the gear housing.
  • the knurling of the hand crank and its ring collar must be pressed through the bearing bush during assembly, since they have an outside diameter that exceeds their inside diameter. A destruction of the plastic bearing bush cannot be ruled out.
  • the pinion must be strong enough so that there is a sufficiently long or large connecting surface for the foot seat of the pinion on the knurled hand crank.
  • the invention is based on the object of improving a jack of the type mentioned in such a way that drive pinions embodied as flat toothed disks can also be fastened sufficiently non-rotatably on the crank end, without the risk of damage to a bearing bush or of the gearbox itself when inserting the crank end to assemble the jack.
  • crank end engages in a slotted manner in a slotted driving sleeve which is positively assembled with the drive pinion.
  • the crank end can be better adapted.
  • the assembly of all parts can also be improved insofar as the parts to be connected to one another are initially included an open carrier sleeve can be arranged in its installed position, without any deformation on any parts. Only then are the edges of the open driving sleeve, which are spaced apart for installing the hand crank end, bent together in a simple manner, so that the gearbox of the jack is ready for use.
  • the hand crank end has a pinch nose which engages in an elongated hole in the driving sleeve. Both the pinch nose and the elongated hole are to be made in one work step with the production of the hand crank or the driving sleeve, so that the manufacturing effort for the positive connection between the hand crank and the driving sleeve is very low.
  • the gear housing and / or a crank-side bearing bush of the hand crank has at least one passage slot which is profiled in accordance with the profile of the hand crank end.
  • This passage slot enables the hand crank or the pinch nose to be pushed through without overcoming frictional forces or without risk of destruction for the transmission housing and / or an existing bearing bush.
  • the end of the crank handle is supported at both ends in bearing bushings of the gearbox housing which are made of plastic and, if necessary, are provided with lubricant holes.
  • These bearing bushes ensure that the gearbox runs smoothly. To do this, they prevent the drive pinion and the driving sleeve from contacting the gearbox housing, which would result in sluggishness and risk of damage to the parts rubbing against each other.
  • the driver sleeve has a stepped end of approximately the same length as the drive pinion and this end is approximately U-shaped and engages in an approximately rectangular recess in the drive pinion. This results in an engagement connection that is sufficiently dimensionally stable even for large turning forces with a simple design of the components involved.
  • the removal of the end of the driver sleeve that is to say the shortening of the O-legs in the region of the engagement of the driver sleeve in the drive pinion, allows the protruding edges of the driver sleeves to be deformed after the end of the crank handle has been inserted, without influencing the connection strength between them To take the driver sleeve and drive pinion,
  • crank-side end of the driver bushing is rounded in order to fit the contact surface of the driver bushing on the
  • the spindle wheel and the drive pinion are flat stamped toothed disks.
  • the arrangement of two toothed disks within a gear housing enables the complete encapsulation of such simple gears.
  • the connection according to the invention between the hand crank end and the drive pinion could, however, also be used in transmissions with bevel gears.
  • the drive pinion is displaceably arranged on the end of the crank handle and is positioned adjacent to the transmission housing and / or a bearing bush by the driver sleeve.
  • FIG. 2 shows the section A-B in the area of FIG. 1 and
  • FIG. 3 shows a perspective view of the drive pinion and the driving sleeve before they are assembled.
  • the upper part of the jack 10 shown in FIG. 1 shows a supporting leg 11 and a threaded spindle 12, which is supported on the upper end of the supporting leg 11 by a spindle bearing 13.
  • the threaded spindle 12 is driven with a hand crank 14 via a gear 15 in a gear housing 16 which is firmly connected to the upper end of the supporting leg 10.
  • the gear housing 16 surrounds the gear 15 in a U-shaped manner and at the top there is a cover cap 17, likewise U-shaped, offset by 90 °, which covers the outer edges 18 of the gear housing 16 comprises the outside and is held there with latching connections 19.
  • the gear 15 of the jack essentially consists of a drive pinion 20 driven by the crank handle 14 and a spindle wheel 21 which is connected to the upper spindle end of the threaded spindle 12 in a rotationally fixed manner.
  • the Spindel ⁇ wheel 21 is rotated with the drive pinion 20, so that the threaded spindle 12 rotates accordingly and a height-adjustable on this threaded spindle 12 load arm is adjusted according to the direction of rotation either upwards or downwards, so that the motor vehicle is either raised or lowered.
  • the weight of the motor vehicle is removed from the load arm, not shown, via the threaded spindle 12, the spindle wheel 21 and the spindle bearing 13 on the supporting leg 11 and thus the floor, not shown.
  • the drive pinion 20 is mounted on the end 22 of the crank handle 14. It is displaceable on the crank end 22 in both directions and must therefore be secured in position so that the engagement in the spindle wheel 21 is always guaranteed.
  • This bearing securing of the drive pinion 20 is carried out by two bearing bushes 23, 24 and above all by a driving sleeve 25.
  • the bearing bushes 23, 24 are seated in bores 26 of the gear housing 16 and each have a radial flange 27.
  • the two radial flanges 27 close the drive pinion 20 and the driving sleeve 25 between them and, on the other hand, rest against the inner wall of the gear housing 16, so that the required securing of the position of the drive pinion 20 is ensured.
  • the bearing bushes 23, 24 each consist of plastic, so that a correspondingly low friction is guaranteed.
  • the bearing bush 23 has a lubricant bore 28 so that its interior can be filled with lubricant and the free end of the crank end 22 is lubricated accordingly where large forces have to be removed by the drive pinion 20. This lubrication also supports the drive pinion 20 on the radial flange 27 of the bearing bush 23 and prevents frictional wear here.
  • the bearing bush 24 is provided with a passage slot 29, which can also be used for the supply of lubricant, but primarily serves for the passage of a pinch nose 30 of the crank end 22 when assembling the vehicle lifting gear 15.
  • the pinch nose 30 engages in an elongated hole 31 of the driving sleeve 25, so that when driving with the hand crank 14, the driving sleeve 25 is also rotated.
  • the driver sleeve 25 in turn engages with a stepped end 32 in a recess 33 of the drive pinion 20.
  • the stepped end 32 of the driver sleeve 25 is U-shaped and the recess 33 is correspondingly rectangular.
  • the crank handle 14 is connected to the gear 15 in a pull-out manner since the pinch nose 30 engages in the slot 31 in such a way that it cannot be pulled out of the passage slot 29 of the bearing bush 24.
  • the edges 34 of the driver sleeve 25 shown in a U-shape in FIG. 3 and bent in FIG. 2 prevent the relative movement of the pinch nose 30 required for this.
  • the rounding 35 of the cone-side ends of the driving sleeve 25 serve to further reduce wear within the transmission.
  • the driver sleeve 25 not only serves as a spacer and connecting part, but also for reinforcing the crank end 22.
  • the reinforcement is important because, when the load arm is clamped against the foot of the lifter without rattling, the spindle 12 against the end of the crank 22 and driving sleeve 25 supports existing axis.
  • the assembly of the gear 15 takes place in such a way that after the installation of the spindle bearing 13 and the threaded spindle 12 the bearing bushes 23, 24 and the drive pinion 20 with the driver sleeve 25 assembled in the direction of the arrow according to FIG. 3 with the cover cap 17 removed, into the Interior of the gearbox 16 are installed.
  • the its bottom can 36 to the threaded spindle 12 side are lowered, so in the fitted position arranged to bottom thickness above the spindle end at least is.
  • the pinch nose 30 can be inserted through the passage opening 29 until it comes to lie above the elongated hole 31.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • General Details Of Gearings (AREA)
  • Transmission Devices (AREA)

Abstract

Le vérin (10) est pourvu d'une broche filetée (12) déplaçable verticalement et comprenant un porte-charge, laquelle broche présente à son extrémité supérieure une roue (21) solidaire en rotation, qui engrène avec un pignon d'entraînement (20) qui est mis en rotation autour de son axe par une manivelle (14) qui y est fixée mécaniquement. Cette manivelle (14) est supportée rotativement par un carter (16) et cela de façon inséparable. Dans le but d'améliorer ce vérin, de manière que même un pignon d'entraînement (20) de forme plate puisse être fixée de façon fiable sur l'extrémité de la manivelle (22), sans endommager le coussinet ou le carter (16) en enfonçant, lors du montage, l'extrémité de la manivelle (22) dans le carter, on prévoit que cette extrémité puisse s'engrener avec une douille d'entraînement entaillée (25) qui est montée et bloquée sur le pignon d'entraînement (20).
EP86903220A 1985-06-12 1986-05-21 Verin pour vehicule Expired EP0227708B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8517069U 1985-06-12
DE8517069U DE8517069U1 (de) 1985-06-12 1985-06-12 Wagenheber

Publications (2)

Publication Number Publication Date
EP0227708A1 true EP0227708A1 (fr) 1987-07-08
EP0227708B1 EP0227708B1 (fr) 1989-01-04

Family

ID=6782033

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86903220A Expired EP0227708B1 (fr) 1985-06-12 1986-05-21 Verin pour vehicule

Country Status (7)

Country Link
EP (1) EP0227708B1 (fr)
JP (1) JP2536856B2 (fr)
BR (1) BR8606729A (fr)
DE (2) DE8517069U1 (fr)
ES (1) ES294533Y (fr)
WO (1) WO1986007344A1 (fr)
ZA (1) ZA864335B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4308481C1 (de) * 1993-03-17 1994-03-31 Bilstein August Gmbh Co Kg Getriebe für einen Wagenheber

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2565401A (en) * 1945-09-25 1951-08-21 Smith S Jacking Systems Ltd Lifting jack
DE1193221B (de) * 1963-03-22 1965-05-20 Domkraft Ab Nike Schraubenspindel-Wagenheber
JPS4844170B1 (fr) * 1969-07-30 1973-12-22
GB1212960A (en) * 1969-11-18 1970-11-18 Ford Motor Co Screw jack
DE2006906A1 (de) * 1970-02-14 1971-08-19 Fa August Bilstein, 5828 Ennepe tal Wagenheber
DE2046397C3 (de) * 1970-09-19 1982-05-13 August Bilstein GmbH & Co KG, 5828 Ennepetal Wagenheber
DE2054613C3 (de) * 1970-11-06 1974-01-31 E.A. Storz Kg, 7200 Tuttlingen Wagenheber
DE2403542C3 (de) * 1974-01-25 1978-06-08 Allendorfer Fabrik Fuer Stahlverarbeitung Ing. Herbert Panne Kg, 6331 Allendorf Wagenheber
FR2266030A1 (en) * 1974-03-26 1975-10-24 Sico Nouvelle Method of securing female element to shaft - involves deforming element into opposed recesses on shaft
US4006993A (en) * 1975-11-25 1977-02-08 Borg-Warner Corporation Shaft mounting arrangement
JPS5940711Y2 (ja) * 1980-09-03 1984-11-19 ホーチキ株式会社 非常警報装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8607344A1 *

Also Published As

Publication number Publication date
BR8606729A (pt) 1987-08-11
ES294533U (es) 1987-01-01
JPS63500028A (ja) 1988-01-07
JP2536856B2 (ja) 1996-09-25
ZA864335B (en) 1987-02-25
WO1986007344A1 (fr) 1986-12-18
EP0227708B1 (fr) 1989-01-04
ES294533Y (es) 1987-08-16
DE3661623D1 (en) 1989-02-09
DE8517069U1 (de) 1985-08-14

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