WO1997016778A1 - Dispositif de blocage de commutation - Google Patents

Dispositif de blocage de commutation Download PDF

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Publication number
WO1997016778A1
WO1997016778A1 PCT/EP1996/004098 EP9604098W WO9716778A1 WO 1997016778 A1 WO1997016778 A1 WO 1997016778A1 EP 9604098 W EP9604098 W EP 9604098W WO 9716778 A1 WO9716778 A1 WO 9716778A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
inner element
recess
tab
lock according
Prior art date
Application number
PCT/EP1996/004098
Other languages
German (de)
English (en)
Inventor
Klaus Krämer
Original Assignee
INA Wälzlager Schaeffler oHG
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 INA Wälzlager Schaeffler oHG filed Critical INA Wälzlager Schaeffler oHG
Priority to DE19680920T priority Critical patent/DE19680920D2/de
Priority to BR9611168A priority patent/BR9611168A/pt
Publication of WO1997016778A1 publication Critical patent/WO1997016778A1/fr

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
    • G05G5/06—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member for holding members in one or a limited number of definite positions only
    • G05G5/065—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member for holding members in one or a limited number of definite positions only using a spring-loaded ball
    • 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
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H63/38—Detents

Definitions

  • the invention relates to a shift lock for securing adjustment positions of a movable actuating element, in particular for a shift rod of a mechanically switchable transmission of vehicles, consisting of a housing, on the inner wall of which an inner element is longitudinally displaceable from one between a bottom of the housing and the The inner element used is subjected to a force, the inner element being provided on the end face on the side facing away from the pressure spring system with a roller-mounted latching element and the inner element having an anti-tamper device.
  • Such shift locks which are also referred to as ball catches or locking bolts, are used in particular in motor vehicle transmissions, the catch element of the shift lock engaging in corresponding recesses in the shift rod or catch recesses in the shift elements.
  • the switching force of the switching lock is determined in particular by the force of the pressure spring which is inserted between the bottom of the housing and the inner element.
  • switching locks are provided with an axial lock.
  • a generic shift lock is known in which the inner element is guided in a longitudinally displaceable manner via a roller bearing in the housing.
  • the cage of the rolling Storage provided with radially inward or outward resilient lugs, which, for example, engage in recesses in the inner element and / or the housing when installed.
  • the inner element is provided with a flare on the compression spring side, which forms an end stop for the rolling bearing in one direction, and in addition the housing wall is provided with a punched-out, radially inwardly directed tab which is inserted into a longitudinal slot or into a longitudinal one Recess locked in the installed position of the inner element. All these variants have in common the formation of a special roller bearing cage, in addition to a measure on the inner element or on the housing of the switching lock that can be implemented with a relatively high mechanical outlay.
  • the object of the invention is to provide a cost-effective, effective end position protection for a component and construction space-optimized switching lock.
  • a switching lock in which the inner element is longitudinally slidably mounted in the housing.
  • one of these components is provided with a radially emerging, resilient tab which is sheared into the wall of one of the components, the tab in the installed state of the inner element snapped into a recess of the associated other component.
  • This axial securing is advantageously suitable for switching locks with reduced diameters which, due to the installation space, a roller bearing must be dispensed with and the shaft diameter of which is adapted to the dome-shaped receptacle of the latching element in the inner element.
  • the fuse according to the invention does not require any additional components and can be produced inexpensively, which results in an overall cost advantage of the switching lock according to the invention, combined with a component reduction and a weight advantage.
  • the structure of the axial securing device according to the invention also provides for a simple assembly in which, after the inner element has been inserted into the housing and a position match has been achieved between the resiliently arranged tab and the associated recess in the adjacent component of the tab, it latches automatically. This ensures effective protection against loss of the components pushed into one another in the preassembled state of the switching lock and an end stop in the installed state of the switching lock.
  • the invention according to claim 2 provides for the formation of an end position safety device for a roller-mounted inner element of a switching lock that a radially aligned tab or extension is provided between the housing and the roller bearing cage.
  • a radially aligned tab or extension is provided between the housing and the roller bearing cage.
  • one of these components has a tab or extension which interacts with the adjacent component and which engages in a recess or on which the cage is supported.
  • the axial securing is provided with a positive end stop between the cage and the housing.
  • This end position assurance according to the invention does not require any additional components and can also be integrated within the installation space specified by the components, housing, roller bearing and inner element.
  • the design of the axial securing means has little or no influence on the design of the roller bearing cage and, in addition, enables the end position securing to be cost-effectively represented by a low manufacturing outlay on the housing or the inner element.
  • the radially projecting resilient tab formed by shearing results in an advantageous, cost-effective between the cylindrical components, the housing and the inner element in the area of tubular sections. Effective safety lock that can be produced, which enables the cloth to be automatically injected into the corresponding recess.
  • the tab arranged on the housing side latches radially inward into a corresponding recess in the inner element.
  • a tab which is arranged in one piece on the inner element and is directed radially outward forms an end stop in which it engages in a corresponding recess in the housing.
  • a preferred embodiment of the invention for forming the flaps provides that each flap is provided with a cut which covers the entire bent section, i.e. the H. includes the radially emerging area of the flap. This measure favors the bending of the flap and thus simplifies production.
  • a preferred embodiment of the invention provides for a longitudinal extension of the tabs, which corresponds to half the value of the maximum guide length of the inner element in the housing.
  • This design has an influence, ie reduces the radial pretension of the flap, as a result of which the insertion force of the inner element into the housing is determined almost exclusively by the force of the compression spring.
  • the recess has a length dimension that is greater than a maximum stroke of the inner element, so that when the switching element is installed, the switching element is inserted when the function is inserted in the housing of this travel is not limited by an attachment of the tab at the end of the recess.
  • the width of the recess significantly exceeds a width dimension of the flap, as a result of which the inner element advantageously has a certain degree of rotational mobility and thus free space.
  • a roller-mounted shift lock can be provided with an axial securing device, in which the roller body cage is provided with at least one radially outward extension, which latches into a corresponding recess in the housing.
  • the nose-shaped attachment on the end face at the end of the roller bearing cage facing away from the latching body.
  • the adjustment path is halved from the inner element.
  • the recess has a longitudinal extent which is equal to or greater than the maximum stroke of the inner element.
  • FIG. 1 shows a longitudinal section of a sliding-mounted shift lock which, in order to form an axial lock, is provided with a tab which is arranged in one piece on the inner element and which engages radially in a recess in the housing;
  • FIG. 2 shows a partial longitudinal section through a sliding-mounted shift locking device, in which a tab arranged on the housing latches radially inward into a recess in the inner element;
  • FIG. 3 shows a sectional view through the switching mechanism shown in FIG. 2 along the line III-III;
  • FIG. 4 shows a longitudinal section through a roller-mounted shift lock, in which the end of the roller bearing cage has a radially outwardly directed shoulder for axial securing, which is in a
  • FIG. 5 shows a switching lock comparable to FIG. 4, which, deviatingly, has a tab that is directed radially inward in one piece on the housing and rests on the end face of the roller bearing cage to form an axial securing device.
  • FIG. 1 shows a longitudinal section of a switching lock 1 a, which comprises a tubular housing 2 a which is produced without cutting from sheet metal by a deep-drawing process and in which an inner element 3 a is guided so as to be longitudinally displaceable via a sliding bearing 4.
  • a compression spring 6 is used, which is guided in a blind hole 7 of the inner element 3a.
  • a latching element 8, which is supported by roller bodies 9, is held in a form-fitting manner and, in the installed state of the switching lock 1 a, is locked in a corresponding recess of a switching shaft to secure an adjustment position.
  • the inner element 3a is provided with a tab 11a which is arranged so as to be resilient radially outwards and which latches into a recess 12a in the housing 2a.
  • a longitudinal extension "L” of the recess 12a is designed to be larger than a stroke "S" of the inner element 3a, as a result of which the end position safety device 10a does not cause any functional impairment for the inner element 3a in the installed state.
  • the switching lock 1 b is partially shown, which largely corresponds in structure to the switching lock 1 a, so that only the distinguishing features are described below.
  • the housing 2b is provided with a radially inwardly directed tab 11b, which latches into a recess 12b of the inner element 3b.
  • the longitudinal extension "L" of the recess 12b in connection with the radially bent region of the flap 11b allows the inner element 3b to be pushed in unimpeded, corresponding to the stroke "S" in the installed state of the switching lock 1b.
  • the sectional view in FIG. 3 along the line 3-3 in FIG. 2 further clarifies the geometric design of the end position securing device 10b.
  • the flap 11b is provided on both sides with a circumferential cut 13, which provides a free space at least in the region of the radially inwardly curved region of the flap 11b.
  • FIG. 3 shows the radial overlap of the flap 11b up to the central region of the wall of the inner element 3b, as a result of which adequate end position securing is established.
  • FIG. 3 also shows the width ratios between the flap 11b and the recess 12b, the width "B" of the recess 12b being dimensioned to be significantly larger than the width "b" of the flap 11b to improve the injection behavior.
  • a roller-mounted shift lock 1 c is shown in FIG. 4.
  • the cage 15c is provided on the end face at the end facing the bottom 5 with a radially outwardly directed projection 17 which has a nose-like cross section and which latches into a recess 12c in the housing 2c.
  • the inner element 3c is provided on the compression spring side with a radially circumferential, outwardly directed flange 18 on which the attachment 17 is supported and at the same time triggers an effect which increases the radial force of the attachment 17.
  • the switching lock 1 d shown in FIG. 5 is comparable to the switching lock 1 c according to FIG. 4, with the exception of the differently designed end position safeguard 10 d, so that the following description relates exclusively to the end position safeguard 10 d.
  • the housing 2d is provided at the end facing the locking element 8 with a tab 11d which is bent radially inward after insertion of the inner element 3d and on which the cage 15d of the roller bearing 14 is limited in its travel.
  • the flange 18 of the inner element 3d in connection with the cage 15d forms an axial stop for the inner element 3d.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)

Abstract

L'invention concerne un dispositif de blocage de commutation (1a) comprenant un boîtier cylindrique (2a) à l'intérieur duquel coulisse longitudinalement un élément intérieur (3a) qui est sollicité élastiquement par un ressort de compression (6) logé entre le fond (5) du boîter (2a) et l'élément intérieur (3a), un élément de blocage en fin de course (10a) étant prévu entre le boîtier (2a) et l'élément intérieur (3a) afin de limiter la course de réglage. Conformément à l'invention, l'élément intérieur (3a) coulisse longitudinalement dans le boîtier (2a) par l'intermédiaire d'un palier lisse (4), et est muni, entre les sections tubulaires de l'élément intérieur (3a) et du boîtier (2a), en vue d'assurer un blocage en fin de course (10a) de l'un de ses composants, d'une languette (11a) montée élastiquement et radialement en saillie, de manière à venir s'encliqueter dans un évidement (12a) du composant voisin.
PCT/EP1996/004098 1995-10-27 1996-09-19 Dispositif de blocage de commutation WO1997016778A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19680920T DE19680920D2 (de) 1995-10-27 1996-09-19 Schaltarretierung
BR9611168A BR9611168A (pt) 1995-10-27 1996-09-19 Dispositivo limitador de manobra

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19540039.9 1995-10-27
DE1995140039 DE19540039A1 (de) 1995-10-27 1995-10-27 Schaltarretierung

Publications (1)

Publication Number Publication Date
WO1997016778A1 true WO1997016778A1 (fr) 1997-05-09

Family

ID=7775941

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1996/004098 WO1997016778A1 (fr) 1995-10-27 1996-09-19 Dispositif de blocage de commutation

Country Status (3)

Country Link
BR (1) BR9611168A (fr)
DE (2) DE19540039A1 (fr)
WO (1) WO1997016778A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19809424B4 (de) * 1998-03-05 2008-10-02 Volkswagen Ag Arretiervorrichtung für ein Getriebe
DE19833101B4 (de) * 1998-07-23 2006-01-26 Ina-Schaeffler Kg Arretierelement zur Sicherung von Verstellpositionen
DE19950611A1 (de) * 1999-10-21 2001-04-26 Schaeffler Waelzlager Ohg Schaltarretierung
ES2252506T3 (es) 2001-10-01 2006-05-16 LEOPOLD KOSTAL GMBH & CO. KG Dispositivo de conmutacion.
DE10221975A1 (de) * 2002-05-17 2003-11-27 Ina Schaeffler Kg Arretierung
DE102004007577A1 (de) * 2004-02-17 2005-09-01 Ina-Schaeffler Kg Schaltarretierung
DE102007040473B4 (de) * 2007-08-28 2020-07-16 Schaeffler Technologies AG & Co. KG Sperrvorrichtung für eine Schaltwelle in einem Getriebe
DE102007040471A1 (de) * 2007-08-28 2009-03-05 Schaeffler Kg Arretiervorrichtung für eine Schaltwelle in einem Getriebe
DE102016203702B3 (de) * 2016-03-08 2017-05-18 Schaeffler Technologies AG & Co. KG Arretierelement zur Sicherung von Verstellpositionen
DE102016219918A1 (de) * 2016-10-13 2017-10-12 Schaeffler Technologies AG & Co. KG Transport- und/oder Montagesicherung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4409735A1 (de) * 1993-06-17 1994-12-22 Schaeffler Waelzlager Kg Schaltarretierung
DE4437508A1 (de) * 1993-12-20 1995-06-22 Schaeffler Waelzlager Kg Arretierelement

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8608939U1 (de) * 1986-04-03 1986-05-22 INA Wälzlager Schaeffler KG, 91074 Herzogenaurach Bolzen zum Arretieren einer in einer Führungsbohrung längsverschieblichen Stange
US5205538A (en) * 1991-12-09 1993-04-27 Caterpillar Inc. Detent mechanism for a fluid control valve
DE4330539C2 (de) * 1993-09-09 1998-04-09 Schaeffler Waelzlager Ohg Arretiereinrichtung
DE9316843U1 (de) * 1993-11-04 1993-12-23 INA Wälzlager Schaeffler KG, 91074 Herzogenaurach Arretierelement, versehen mit Maßnahmen zur Lagesicherung, die am Käfig sowie am Führungsteil vorgesehen ist

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4409735A1 (de) * 1993-06-17 1994-12-22 Schaeffler Waelzlager Kg Schaltarretierung
DE4437508A1 (de) * 1993-12-20 1995-06-22 Schaeffler Waelzlager Kg Arretierelement

Also Published As

Publication number Publication date
DE19680920D2 (de) 1998-02-26
DE19540039A1 (de) 1997-04-30
BR9611168A (pt) 1999-04-06

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