WO2015110131A1 - Unité linéaire comprenant une crémaillère - Google Patents

Unité linéaire comprenant une crémaillère Download PDF

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Publication number
WO2015110131A1
WO2015110131A1 PCT/EP2014/003030 EP2014003030W WO2015110131A1 WO 2015110131 A1 WO2015110131 A1 WO 2015110131A1 EP 2014003030 W EP2014003030 W EP 2014003030W WO 2015110131 A1 WO2015110131 A1 WO 2015110131A1
Authority
WO
WIPO (PCT)
Prior art keywords
longitudinal
rack
tubular body
linear unit
unit according
Prior art date
Application number
PCT/EP2014/003030
Other languages
German (de)
English (en)
Inventor
Eric Angué
Original Assignee
Festo Ag & Co. Kg
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 Festo Ag & Co. Kg filed Critical Festo Ag & Co. Kg
Publication of WO2015110131A1 publication Critical patent/WO2015110131A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
    • F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
    • F16H19/04—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising a rack
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/26—Racks

Definitions

  • the invention relates to a linear unit, comprising a toothed rack and a guide unit mounted linearly displaceably on the toothed rack in the longitudinal direction, the toothed rack having a one - piece toothed rack body provided with a longitudinal toothing in the region of its outer circumference, the toothed tooth arrangement comprising a multiplicity of alternating successive elevations and depressions.
  • a linear unit of this type is designed as a rack and pinion steering and includes a guide unit corresponding steering housing in which a rack is mounted linearly displaceable.
  • the rack consists of a rack made of solid material with a milled on the outer circumference probably
  • Longitudinal toothing which is composed of a plurality of alternately successive elevations and depressions.
  • a mounted on the steering housing pinion meshes with the longitudinal teeth of the rack and causes a linear re ⁇ relative movement of the rack relative to the steering housing when it is driven in rotation.
  • the known linear unit has disadvantages, especially in terms of manufacturing costs and weight.
  • the toothing ⁇ intervention is subject to considerable wear, provided that the relatively movable steering components are not external be supported relative to each other. The latter, however, is associated with an increased construction costs.
  • a handling device is known from EP 1 979 128 B1, in which a carriage is guided in a linearly displaceable manner on a beam and which also contains a toothed rack arranged on the beam with which the toothed wheel of a drive unit meshes.
  • DE 10 2006 062 241 AI discloses a tubular rack, which is at least partially hollow and in whose wall at least one local weakening is introduced in order to influence the internal stress distribution.
  • DE 165 964 A describes a rack and pinion gear in which the toothed rack is formed from a tube into which round holes are made, into which a toothed wheel engages.
  • the invention is based on the object to provide a cost-effectively manufacturable, working at low weight precise linear unit.
  • the rack body is a one-piece tubular body, the wall outside at least minimally forms a rotationally locking cooperating with the guide unit guide surface.
  • the design of the rack body as a tubular body gives the linear unit overall a relatively low weight and reduces the moving mass in cases where the linear unit is equipped with stationary guide unit and in this respect movable rack.
  • the latter applies in particular for use of the linear unit as an off-unit, which can be used for example for the handling of objects.
  • the linear unit also allows a mode of operation with fixed and in this case movable guide unit.
  • the tubular design of the rack proves to be advantageous, in particular, the low material requirements and the high stiffness still present are highlighted.
  • linear unit Another advantage of the linear unit is the integration of at least one guide surface in the wall of the tubular body, which causes a rotation between the guide unit and the rack and thus allows exactly linear relative movements between the rack and the guide unit, without having to resort to external support measures.
  • the linear toothing can be used for different purposes, for example for drive purposes or for position detection purposes.
  • the wall of the tubular body to form the recesses of the longitudinal toothing has a hole structure which is composed of a plurality of holes which are arranged in the longitudinal direction of the rack at a distance from each other and enforce the wall of the tubular body respectively ,
  • the hole structure has the advantage that usually no special steps are required for the generation of the elevations of the longitudinal toothing, because they automatically result in the form of Ste ⁇ ge, which remain after the introduction of the holes between each successive holes.
  • Particularly advantageous is an embodiment of the holes as
  • Punching holes considered, although in principle, other hole-making can be used, for example, energy beam cutting methods such as laser cutting or plasma cutting.
  • the shape of the hole cross-section of the individual holes can be selected depending on the purpose of the linear unit. As a particularly useful embodiment is regarded as slots whose longitudinal axis extends transversely and in particular at right angles to the longitudinal axis of the rack. It is especially recommended an elongated rectangular hole cross section ⁇ for the tooth cavities forming individual ⁇ nen holes.
  • the recesses of the longitudinal toothing can also be preferably made by a plastic deformation of the wall of the tubular body.
  • the recesses are in particular trough-shaped and have the effect that the wall of the tubular body in the region of the longitudinal toothing can be closed. In this way, even without special covering measures, the penetration of contaminants conditions into the interior of the tubular body can be prevented.
  • Particularly expedient production of the molded recesses is considered by an embossing process, so that the recesses of the longitudinal toothing from the outside in the wall embossed wall sections of the wall of the tubular body.
  • the outline of the molded-in depressions is expediently an elongated outline, wherein the depressions are in particular aligned such that their cross-sectional longitudinal axes are aligned transversely and in particular at right angles to the longitudinal axis of the rack or of the tubular body of the rack.
  • the longitudinal toothing of the bottom of a molded into the wall of the tubular body longitudinal groove is formed by the depressions of the longitudinal teeth are introduced into this soil, for example in the form of a hole structure or in the form of impressions. Regardless of their configuration, the longitudinal toothing is here flanked on its two longitudinal sides by a respective groove flank of the longitudinal groove.
  • the tubular body is profiled preferably outside in cross-section outside seen in a circle.
  • at least one guide surface can be provided, which is a linear guide between the rack and the guide unit and at the same time a relative
  • the at least one guide surface is expediently present in addition to the longitudinal toothing, wherein it is preferably arranged in a different outer peripheral region of the tubular body than the longitudinal toothing.
  • the longitudinal toothing is expediently present in addition to the longitudinal toothing, wherein it is preferably arranged in a different outer peripheral region of the tubular body than the longitudinal toothing.
  • the guide unit may, for example, have two guide elements which interact linearly with one of two guide surfaces.
  • linear guidance measures effecting an anti-rotation protection can be realized both as sliding bearing measures and as rolling bearing measures.
  • An embodiment as a rolling bearing has the advantage of high precision in conjunction with a high load capacity and a very low susceptibility to wear.
  • the tubular body with a rectangular and preferably a square
  • one of the side wall sections of the tubular body is provided with the longitudinal toothing.
  • the two longitudinal splines side flanking side wall portions of the tubular body each form a guide surface, which with the guide unit for linear guide and simultaneous rotation can cooperate.
  • the linear unit is equipped in an expedient embodiment with an existing in addition to the spline toothing structure, which cooperates in a relative movement of the rack and guide unit with the longitudinal teeth of the rack.
  • a tooth structure consists for example of a toothed wheel or a toothed belt.
  • the guide unit can be equipped with a rotatably driven toothed belt, which can cause a linear relative movement between the rack and the guide unit by the interaction with the longitudinal toothing. It is also possible to monitor a linear movement between the rack and the guide unit by means of a cooperating with the linear toothed gear and make in this way, for example, a position monitoring.
  • a toothed belt is to be emphasized, which can extend along the longitudinal toothing.
  • Such a toothed belt can also be used as a means for driving and / or for position detection.
  • a toothed belt extending over the longitudinal toothing can also be used advantageously as a cover strip, which prevents the penetration of contaminants into the hollow space of the tubular body through the longitudinal toothing designed as a hole structure.
  • the tubular body forming the rack body is, in particular, a profiled body which is profiled in an uncircular manner in cross section.
  • the tubular body may include, including at least one guide integral with it. surface can be produced for example by extrusion or by rolling.
  • the one-piece tubular body forming the rack body consists of metal, in particular of steel.
  • a use of stainless steel has the advantage of a particularly high wear and corrosion resistance.
  • FIG. 1 in a partially schematic representation of a preferred embodiment
  • Figure 2 shows a longitudinal section through the linear unit according to
  • Figure 3 shows a cross section through the linear unit according to
  • Figure 4 the framed in Figure 2 section IV of an alternative designed rack body, in which the recesses of the spline 18 not as
  • Line ⁇ arix has as essential components via a rack 2 and in this regard separate guide unit 3.
  • the guide unit 3 is on the rack 2 in the longitudinal direction, ie in the axial direction of the longitudinal axis 4 of the rack 2, slidably mounted.
  • the rack 2 and the guide unit 3 can perform a direction indicated by a double arrow linear relative movement 5, which is also referred to below as linear movement 5 and which is oriented in the axial direction of the longitudinal axis 4.
  • the linear movement 5 may be a linear movement of the guide unit 3 with respect to the stationary rack 2 or a linear movement of the rack 2 with respect to the stationary guide unit 3.
  • the rack 2 has a one-piece rack body 6, which has the same longitudinal axis 4 as the rack 2 in its entirety.
  • On the one-piece rack body 6 can be attached to form the rack 2 additional parts, in particular not further illustrated end-side closing body, which are for example usable to fix the rack 2 to a not further illustrated support structure.
  • stop means may be attached, which cause by means of cooperation with the guide unit 3 a travel limit of the Li ⁇ nearschul 5.
  • the part of the rack 2 is responsible for the linear guidance of the Füh ⁇ approximation unit 3 of the one-piece toothed rack body.
  • the rack body 6 is provided at its right ⁇ angularly oriented to the longitudinal axis 4 outer circumference 7 with at least one guide surface 8, which preferably extends uninterrupted over the entire length of the rack body 6 away.
  • the tooth Bar body 6 two separately formed guide surfaces 8, which are formed on in the circumferential direction 11 of the tooth ⁇ rod body 6 spaced apart areas on the outer circumference 7.
  • a circumferential direction 11 is understood by a double arrow oriented direction around the longitudinal axis 4 of the rack body 6.
  • a peculiarity of the rack body 6 consists in its configuration as a one-piece tubular body 6a.
  • the rack body 6 could be referred to collectively as a rack tube.
  • the rack body 6 forming the tubular body 6a has a RohrAvemwandung 12, which is closed in the circumferential direction 11 in itself and the rack body 6 axially over its entire length across effetzie ⁇ rising and frontally on both sides ausmündenden cavity 13 peripherally limited.
  • the outer circumference 7 of the rack body 6 is at the same time the outer circumference 7 of the tubular body 6a. Accordingly, the at least one guide surface 8 is formed by a surface portion of the outer periphery 7 of the tubular body 6a.
  • the guide unit 3 surrounds the rack body 6 at least partially in the circumferential direction 11. In one embodiment, not shown, the rack body 6 and the tubular body 6a is completely enclosed or framed by the guide unit 3.
  • the embodiment illustrates a preferred only partial framing of the rack body 6, in which case the guide unit 3 engages over the rack body 6 like a rider from one longitudinal side.
  • the guide unit 3 is in particular designed so that it the rack body 6 at each other with respect to the longitudinal axis 4 diametrically opposite longitudinal sides flanking a guide section 1.
  • the two guide portions 14 are components of two guide legs 19 of the guide unit 3, between which the rack body 6 is immersed.
  • Each guide surface 8 of the tubular rack body 6 cooperates with at least one counter-guide surface 15 formed on the guide unit 3.
  • Each pair consisting of a guide surface 8 and an associated counter-guide surface 15 is matched to one another such that a precisely linear linear motion 5 between the rack body 6 and the guide unit 3 is ensured, wherein a rotation between the guide unit 3 and the rack body 6 is given.
  • the rotation preventing prevents rotation of the guide unit 3 with respect to the rack body 6 about the longitudinal axis 4. So, for example, the guide unit 3 fixed to a non-illustrated support structure stationary, is ensured by the anti-twisting interaction of the guide surfaces 8 and counter-guide surfaces 15 that the rack body. 6 even then can not rotate about its longitudinal axis 4, when it is acted upon from the outside with a torque in the appropriate direction.
  • the guide portions 14 of the embodiment are designed to obtain a sliding bearing between the guide surfaces 8 and counter guide surfaces 15.
  • the counter guide surfaces 15 slide during the linear movement 5 along the guide surfaces 8 or vice versa.
  • Such a configuration of linear guide means as a sliding bearing device is particularly inexpensive.
  • the linear guide means may also be designed as a rolling bearing device.
  • the guide portions 14, as indicated by dash-dotted lines in each case a plurality of rolling elements 16, which bear against a respective one of the guide surfaces 8 and roll in the linear movement 5 at the respective associated guide surface 8.
  • the mating guide surfaces 15 are formed by the surface portions of the rolling elements 16 in rolling contact with the guide surfaces 8.
  • each guide section 14 has a plurality of spherical rolling elements 16 arranged successively in one or more circulating passages along which they travel in a circulating motion as they roll on an associated guide surface 8 in the linear motion 5.
  • the guide portions 14 are formed as independent, for example, block or strip-shaped guide elements which are fixed to a base body 17 of the guide unit 3.
  • the main body 17 can in particular also assume a housing function.
  • the tubular rack body 6 has a longitudinal toothing 18 integrally integrated in it, which extends in the axial direction of the longitudinal axis 4, and although vorzugswei ⁇ se over the entire length of the rack body 6 away.
  • the longitudinal toothing 18 has a linear longitudinal profile, wherein the toothing longitudinal axis 22 has the same orientation as the longitudinal axis 4 of the toothed rack body 6 or tubular body 6a.
  • the longitudinal toothing 18 consists of a plurality of alternately successive elevations 23 and depressions 24. In the axial direction of the toothing axis 22 follows each Well 24 a survey 23, and vice versa.
  • the spline 18 is located in a region of the outer periphery 7 of the rack body 6, which is also referred to below as Verzah ⁇ nungs Symposium 25.
  • the spline 18 is integrally formed in the rack body 6 forming one-piece tubular body 6a. In this way, cost-effective production with high precision is possible especially for large quantities.
  • the longitudinal toothing 18 is expediently present in addition to the at least one guide surface 8. In this way, use of the longitudinal toothing 18 is possible independently of the existing between the guide unit 3 and the rack body 6 linear guide and rotation.
  • each guide surface 8 is arranged in a different outer peripheral region of the tubular body 6a than the longitudinal toothing 18. Consequently, the outer circumference 7 of the tubular body 6a has, in addition to the toothed region 25, at least one guide region 26 which is separate in this respect and which is provided with a guide surface 8.
  • the rack body 6 has only one guide portion 26 and in particular also only a single guide surface 8.
  • a configuration is considered to be particularly advantageous, which has two Füh ⁇ tion areas 26 on the rack body 6 in the context of the embodiment in which the rack body 6 has at least one and preferably exactly one guide surface 8 in each case.
  • Each guide surface 8 is expediently designed strip-shaped and extends over the entire length of the rack body 6. Preferably, it is at least partially flat.
  • the embodiment shows a distribution of the toothed portion 25 and a plurality of guide portions 26 in a manner that the longitudinal toothing is flanked in the circumferential direction ⁇ 11 on its two longitudinal sides by a guide surface 8 eighteenth
  • the toothing region 25 and the guide regions 26 are each arranged at a distance from one another.
  • such an arrangement is also taken that the toothed region 25 points in a different radial direction with respect to the longitudinal axis 4 than any guide region 26.
  • the tube body wall 12 has four substantially mutually perpendicular side wall portions 12a, 12b, 12c, 12d, which are arranged in succession in the circumferential direction 11 and each merge into one another by means of a corner portion 12e of the tube body 12 in one piece.
  • ⁇ example is rounded.
  • a first side wall section 12a has the longitudinal toothing 18 in the exemplary embodiment.
  • the two each define a guide region 26 in each case via one of the corner regions 12e on both sides of the second and third side wall sections 12b, 12c and each have at least one guide surface 8.
  • a fourth side wall portion 12d opposite the first side wall portion 12a terminates the pipe structure.
  • non-circular profiled tubular body 6a has a particularly high rigidity
  • its tubular body can be tion 12 via one or more in the axial direction of
  • each guide portion 26 On the outer circumference 7 a groove-like recess 28, which extends over the entire length of the tubular body 6a. It is advantageous in this context if the outwardly facing boundary surface of each groove-like depression 28 forms at least one guide surface 8. In this way, the guide unit 3 engages with each guide section 14 in one of the groove-like recesses 28, so that in the circumferential direction 11, a positive cooperation between the guide surfaces 8 and the mating guide surfaces 15 sets, resulting in the embodiment mentioned above
  • Each guide section 14 expediently has an anti-rotation projection 32, which, while causing the mentioned anti-rotation lock, extends into an over the entire length of the tubular body 6a
  • Verwaranssverianaung 33 engages the outer circumference 7.
  • the anti-rotation recess 33 is expediently formed by the above-mentioned groove-like recess 28.
  • Verwarsvertiefung 33 reversed, so that the Vermosêtsvertiefung 33 is located on the guide unit and the anti-rotation projection 32 on the corresponding profiled pipe body 6a.
  • the tube body wall 12 has a perforated hole for forming the depressions 24 of the longitudinal toothing 18.
  • structure which is composed of a plurality of spaced at anei ⁇ nierergereihten holes 24a.
  • the depressions 24 of the longitudinal toothing 18 are formed by holes 24a.
  • Each hole 24a passes through the tube body wall 12 and thus establishes a connection between the outer circumference 7 of the rack body 6 and the cavity 13.
  • the holes 24a are for example punched holes or are cut out of the tube body wall 12 by another cutting method, for example by laser cutting or another energy beam cutting method.
  • the holes 24a are designed as slots, which is the case in the embodiment.
  • the holes 24a are then aligned in particular so that the longitudinal axis 34 of the hole cross-section is oriented transversely and in particular at right angles to the longitudinal axis 4 or to the tooth longitudinal axis 22.
  • a ⁇ executed rising design of the holes 24a has proven that there is an elongated rectangular hole cross section. This is the case in the embodiment.
  • the depressions 24 of the longitudinal toothing 18 result from plastically deformed wall regions 35 of the tubular teeth. body wall 12.
  • the recesses 24 in this embodiment not only one lateral edge, but also a CLOSED ⁇ Senen bottom 35a.
  • Produced are such, plastically molded recesses 24, for example, by a stamping process by means of a suitable embossing tool.
  • the bottom 36 has the elevations 23 and recesses 24 and is practically the groove bottom of the longitudinal groove 37.
  • the longitudinal groove 37 is made for example by cold or hot deformation of the tubular body 6a or by means of a machining process.
  • the longitudinal grooves 37 alongside limiting groove flanks 38 can be used for example as support surfaces for supporting at least one further component of the linear unit 1.
  • Such further component is for example a toothed belt ⁇ of the linear unit 1, which extends along the longitudinal teeth 18 and can immerse in the longitudinal groove 37th
  • the longitudinal teeth 18 of the linear unit 1 can be used in a variety of ways. In the embodiment, a use as a drive means is illustrated, which helps to cause the linear movement 5.
  • the guide unit 3 is equipped with a movable toothing structure 42, which here preferably consists of a body rotatably mounted on the base 17 and arranged in particular in the interior of the main body 17 Gear 42a consists.
  • the toothed wheel 42a has a rotation axis 43 running at right angles to the toothing longitudinal axis 22 and can be driven about the rotation axis 43 by means of a drive motor 44 of the guide unit 3 to form a rotary drive movement 45 illustrated by a double arrow.
  • a peripheral toothing 46 of the toothed wheel 42a engages in the longitudinal toothing 18 of the toothed rack body 6. If the gear 42a driven by the drive motor 44 to the drive movement 45, the gear 42a runs in the longitudinal teeth 18 along, so that the linear relative movement 5 between the guide unit 3 and the rack 2 a ⁇ represents.
  • the drive motor 44 is expediently an electric motor. However, it can also be of the fluid-operated type.
  • toothed structure 42 is that of the already mentioned toothed belt. Also, a toothed belt can be used by cooperation with the spline 18 to cause the linear motion 5.
  • a gear meshing with the longitudinal teeth 18 gear 42 may be coupled to a rotary encoder, which is useful to determine from the rotational movement of the gear 42a, the instantaneous relative position between the guide unit 3 and the rack 2 and / or the speed of the linear movement.
  • a sensor is arranged on the guide unit 3, which sensor is used in the linear movement.
  • tion 5 in the axial direction of the tooth longitudinal axis 22 is moved past the longitudinal toothing 18 and responsive to the preferably ferromagnetic surveys 23.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

L'invention concerne une unité linéaire (1), qui comporte une crémaillère (2) et une unité de guidage (3) montée de manière à pouvoir se déplacer linéairement sur ladite crémaillère. La crémaillère (2) dispose d'un corps de crémaillère monobloc (6), qui se présente sous la forme d'un corps tubulaire (6a) et qui comporte, en plus d'une denture longitudinale (18), au moins une surface de guidage (8) coopérant avec l'unité de guidage (3) de manière à empêcher toute torsion.
PCT/EP2014/003030 2014-01-22 2014-11-12 Unité linéaire comprenant une crémaillère WO2015110131A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014000815.0A DE102014000815B4 (de) 2014-01-22 2014-01-22 Lineareinheit
DE102014000815.0 2014-01-22

Publications (1)

Publication Number Publication Date
WO2015110131A1 true WO2015110131A1 (fr) 2015-07-30

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Application Number Title Priority Date Filing Date
PCT/EP2014/003030 WO2015110131A1 (fr) 2014-01-22 2014-11-12 Unité linéaire comprenant une crémaillère

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DE (1) DE102014000815B4 (fr)
WO (1) WO2015110131A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106771340A (zh) * 2016-12-16 2017-05-31 上海华川环保科技有限公司 一种差压式测量装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202016100782U1 (de) * 2016-02-16 2017-05-18 Dewertokin Gmbh Möbelantrieb
DE102018214039A1 (de) * 2018-08-21 2020-02-27 Robert Bosch Gmbh Verdrehsicherung der Zahnstange durch komplementäre Formen

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE165964C (fr)
US3163925A (en) 1961-12-01 1965-01-05 Universal Tool & Stamping Comp Method of forming a rigid steel rack bar for automobile jacks
US3656364A (en) 1970-12-02 1972-04-18 Weld Tooling Corp Rack and holder
DE2249653A1 (de) 1972-10-11 1974-04-25 Ehrenreich & Cie A Zahnstangenlenkung mit integrierter hydraulik-lenkhilfe
DE7739063U1 (de) 1978-04-27 Lambert, Paul, 7320 Goeppingen Teleskoprohr für Marktschirme
JP2007092871A (ja) 2005-09-28 2007-04-12 Isel Co Ltd リニアガイド装置
DE102006062241A1 (de) 2006-12-22 2008-06-26 Thyssenkrupp Presta Ag Zahnstange
US7607365B1 (en) 2007-04-05 2009-10-27 Liftco, Inc. Drive mechanism for an extendable member
EP1979128B1 (fr) 2006-01-23 2010-04-28 FIBRO-GSA Automation GmbH Dispositif de manutention de pièces de type quelconque, en particulier pour le chargement et le dechargement lineaires de machines
US20110254305A1 (en) * 2010-04-20 2011-10-20 Michael Gogola Slide-out
US20120036955A1 (en) * 2010-08-10 2012-02-16 Michael Gogola Involute gear
US20130119700A1 (en) * 2011-11-11 2013-05-16 Norco Industries, Inc. Slide out drive assembly for enclosure

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE165964C (fr)
DE7739063U1 (de) 1978-04-27 Lambert, Paul, 7320 Goeppingen Teleskoprohr für Marktschirme
US3163925A (en) 1961-12-01 1965-01-05 Universal Tool & Stamping Comp Method of forming a rigid steel rack bar for automobile jacks
US3656364A (en) 1970-12-02 1972-04-18 Weld Tooling Corp Rack and holder
DE2249653A1 (de) 1972-10-11 1974-04-25 Ehrenreich & Cie A Zahnstangenlenkung mit integrierter hydraulik-lenkhilfe
JP2007092871A (ja) 2005-09-28 2007-04-12 Isel Co Ltd リニアガイド装置
EP1979128B1 (fr) 2006-01-23 2010-04-28 FIBRO-GSA Automation GmbH Dispositif de manutention de pièces de type quelconque, en particulier pour le chargement et le dechargement lineaires de machines
DE102006062241A1 (de) 2006-12-22 2008-06-26 Thyssenkrupp Presta Ag Zahnstange
US7607365B1 (en) 2007-04-05 2009-10-27 Liftco, Inc. Drive mechanism for an extendable member
US20110254305A1 (en) * 2010-04-20 2011-10-20 Michael Gogola Slide-out
US20120036955A1 (en) * 2010-08-10 2012-02-16 Michael Gogola Involute gear
US20130119700A1 (en) * 2011-11-11 2013-05-16 Norco Industries, Inc. Slide out drive assembly for enclosure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106771340A (zh) * 2016-12-16 2017-05-31 上海华川环保科技有限公司 一种差压式测量装置

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DE102014000815B4 (de) 2017-11-09
DE102014000815A1 (de) 2015-07-23

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