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EP0367943B1 - Dispositif pour ajuster la position de deux pièces reliées entre elles et tournant autour du même axe - Google Patents

Dispositif pour ajuster la position de deux pièces reliées entre elles et tournant autour du même axe Download PDF

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Publication number
EP0367943B1
EP0367943B1 EP89116846A EP89116846A EP0367943B1 EP 0367943 B1 EP0367943 B1 EP 0367943B1 EP 89116846 A EP89116846 A EP 89116846A EP 89116846 A EP89116846 A EP 89116846A EP 0367943 B1 EP0367943 B1 EP 0367943B1
Authority
EP
European Patent Office
Prior art keywords
drive shaft
projection
control lever
clamping member
hole
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
EP89116846A
Other languages
German (de)
English (en)
Other versions
EP0367943A3 (en
EP0367943A2 (fr
Inventor
Axel Kemner
Andreas Oberländer
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.)
Aventics GmbH
Original Assignee
Mannesmann Rexroth Pneumatik 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 Mannesmann Rexroth Pneumatik GmbH filed Critical Mannesmann Rexroth Pneumatik GmbH
Publication of EP0367943A2 publication Critical patent/EP0367943A2/fr
Publication of EP0367943A3 publication Critical patent/EP0367943A3/de
Application granted granted Critical
Publication of EP0367943B1 publication Critical patent/EP0367943B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/04—Controlling members for hand actuation by pivoting movement, e.g. levers
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/08—Controlling members for hand actuation by rotary movement, e.g. hand wheels
    • G05G1/10—Details, e.g. of discs, knobs, wheels or handles
    • G05G1/12—Means for securing the members on rotatable spindles or the like
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G23/00—Means for ensuring the correct positioning of parts of control mechanisms, e.g. for taking-up play

Definitions

  • the invention relates to a device for adjusting the position of two components which are rotatable and connected to one another about a common axis of rotation, in particular for adjusting the position of a drive shaft of a potentiometer relative to a control lever connected to the drive shaft, according to the preamble of patent claim 1.
  • a thread is generally applied to a step of the free end region of the shaft, onto which a nut is screwed, by means of which the lever is braced with the shaft after being brought into contact with the step .
  • a thread is known from US-A-2 921 285. If the position of the part to be driven relative to the lever is to be changed, the nut is loosened and the shaft is rotated relative to the lever. After this process, the lever is tightened again with the shaft by tightening the nut.
  • the invention has for its object to provide a device of the type mentioned, which makes it possible to easily adjust the position of two components connected to each other, rotatable about a common axis of rotation.
  • the invention offers in particular the advantage of obtaining a device which fulfills both the function of a driver and the function of an adjusting device.
  • the device according to the invention ensures that when the control lever is rotated, the drive shaft is carried along and a rotational movement of the drive shaft running synchronously with the rotary movement of the control lever is achieved.
  • a clamping body provided with a peg-like extension and a spring element acting on it are in a stepped through opening in the control lever arranged.
  • the drive shaft also extends on the side facing away from the clamping body into the stepped through opening of the first component in the direction of the extension of the clamping body.
  • the control lever is connected to the drive shaft via a projection which is arranged on the extension of the clamping body and which extends into a corresponding recess in the drive shaft.
  • the projection and the recess are designed so that a rotational movement between the extension of the clamping body and the drive shaft is prevented.
  • the projection can e.g. have a rectangular shape and the recess can be designed as a slot.
  • the clamping body is advantageously stepped and carries a sealing ring on its side facing a gradation of the through opening, which sealingly rests on the control lever and on the clamping body.
  • a slot is machined into its side facing away from the drive shaft, into which the blade of a screwdriver can be inserted.
  • the clamping body can also have a knurled projection for adjustment purposes, which is arranged on the side of the clamping body facing away from the drive shaft.
  • a plate (32) made of a preferably electrically non-conductive material is on the side of the device carrier (1) facing away from the control lever (3, 5, 9). arranged and connected to the equipment carrier (1), for example by screws and spacers.
  • the plate (32) is arranged substantially perpendicular to the longitudinal axis of the hub (3) so that the control disc (22) is located between the plate (32) and the device carrier (1).
  • the potentiometer (25) has a resistance track (27) and a sliding contact (26) and is arranged in relation to the hub (3) in such a way that a shaft (21) connected to the sliding contact (26) for driving the potentiometer (25) coaxially runs to the hub (3).
  • the shaft (21) of the potentiometer (25) extends into the smaller cross section (4) of a stepped through opening (4, 7, 8) which extends in the direction of the longitudinal axis of the hub (3) of the control lever (3, 5, 9) is provided running in the control lever (3, 5, 9).
  • a plurality of electrical components (33) Arranged around the potentiometer (25) on the side of the plate (32) facing the control disk (22) are a plurality of electrical components (33) designed as switching and control elements, which can be switched by control cams of the control disk (22).
  • the potentiometer (25) and the switching and control elements (33) are electrically connected to a terminal block (29). Cables (28) lead from the terminal strip (29) to consumers or to a voltage source.
  • the control lever (3, 5, 9) represents a first component which can be rotated about an axis of rotation as a drive part and the shaft (21) for driving the potentiometer (25) represents a second component which can be rotated about the same axis of rotation as a part to be driven .
  • An overload clutch is used to connect the first component (3, 5, 9) to the second component (21).
  • the overload clutch is designed as a clamping body (11) which is operatively connected to the first component and the second component and which is arranged in the part (8) of the through opening (4, 7, 8) with the larger cross section.
  • the clamping body (11) has an extension (18) which extends in the direction of the shaft (21) of the potentiometer (25) into the part (4) of the passage opening (4, 7, 8) with the smaller cross section.
  • a preferably rectangular projection (19) that extends over the shaft (21) and that fits into a slot-like recess (20) in the extension (18 ) protrudes end face of the shaft (21).
  • the shaft (21) and the clamping body (11) are operatively connected to one another by means of the extension (18) provided with the projection (19) and the slot-like recess (20) provided in the shaft (21).
  • a circumferential groove (16) is provided in the part (8) of the through opening (4, 7, 8) that delimits the larger cross section and serves as a bearing point for a retaining ring (15).
  • a plate spring (14) serving as an elastic element supports abuts on the locking ring (15) and acts on the clamping body (11) in the direction of the projection (7) of the stepped through opening (4, 7, 8).
  • the clamping body (11) has a step (10) which carries a sealing ring (17).
  • the sealing ring (17) lies sealingly against the gradation of the clamping body (11) and against the projection (7) and the wall (8) of the graded through opening (4, 7, 8).
  • a slot (12) is provided in the clamping body (11), into which the blade of a screwdriver can be inserted for adjustment purposes of the clamping body (11) and the shaft (21) connected to it.
  • a knurled projection (36) can be arranged on this side of the clamping body (11), by means of which the clamping body (11) and the shaft (21) of the Potentiometers (25) can be rotated relative to the control lever (3, 5, 9).
  • a cover plate (13) closes - as shown in FIG. 1 - the part (8) of the passage opening (4, 7, 8) with the larger cross section on the side facing away from the extension (18), so that the plate spring (14), the locking ring (15) and the clamping body (11) with the sealing ring (17) are located in this part (8) of the through opening (4, 7, 8).
  • a sealing ring (6) is arranged in a circumferential groove of the hub (3) of the control lever (3, 5, 9) and lies sealingly against the wall delimiting the bore (2) in the device carrier (1).
  • the adjustment device shown in FIG. 2 has the same structure as the adjustment device shown in FIG.
  • the components that are the same as the components shown in FIG. 1 are provided with the same reference numerals. The same applies to the object according to Figure 3.
  • control lever (3, 5, 9) If the control lever (3, 5, 9) is in the neutral position, it is located via the plate spring (14), the clamping body (11), the extension (18) with the projection (19) and the shaft (21) with the Control lever (3, 5, 9) in operative connection sliding contact (26) of the potentiometer (25) normally also in its neutral position.
  • the shaft (21) for driving the sliding contact (26) is rotated relative to the control lever (3, 5, 9). This is done in such a way that the control lever (3, 5, 9) is held in its neutral position and at the same time the clamping body (11) while overcoming the frictional force between the control lever (3, 5, 9), the The clamping body (11) and the plate spring (14) (overload clutch) are rotated about its axis of rotation, the shaft (21) connected to the sliding contact (26) being carried along by the extension (18) of the clamping body (11) and also being rotated.
  • the sliding contact (26) has now changed its position relative to the control lever (3, 5, 9), namely the position of the sliding contact (26) in relation to the common axis of rotation of the control lever (3, 5, 9) and shaft (21) , changed by a certain amount of angle relative to the control lever (3, 5, 9).
  • control lever (3, 5, 9) as the first component and the shaft (21) with the sliding contact (26) of the potentiometer (25) as the second component are mentioned as components whose position should be adjustable relative to one another.
  • the clamping body (11) with extension (18) and projection (19) and the plate spring (14) are used to connect these two components.
  • the shaft (21) of the potentiometer (25) in its axial extent such that it is equal to the axial extent of the part (4) of the stepped through opening (4, 7, 8) with the smaller cross section .
  • the extension (18) on the clamping body (11) can be dispensed with.
  • the means of shaft (21) and clamping body (11) which can be brought into engagement with one another are then provided on the clamping body (11) itself and, as shown in the exemplary embodiment, on the free end of the shaft (21).
  • These means can consist of elevations or projections on one part and corresponding depressions on the other part.
  • control lever as the first component and the extension (18) connected to the clamping body (11) as the second component, the first component and the second component being rotatable relative to one another.
  • the means for connecting these components to one another are then again the clamping body (11) and the plate spring (14) serving as an elastic element.
  • extension (18) in relation to the exemplary embodiment, is the second component, then it must have an axial extension which is dimensioned such that the extension (18) on the side of the hub (3) facing the potentiometer (25). emerges from the through opening (4, 7, 8), plugs into the potentiometer (25) and is connected there to the sliding contact (26).
  • the clamping body (11) and the plate spring (14) do not necessarily have to be arranged in the through opening (4, 7, 8) of the hub (3). They can also be arranged in the area of the through opening (4, 7, 8) on the side of the control lever (3, 5, 9) facing away from the carrier (1). For this purpose, appropriate guide and holding means for the clamping body (11) and the plate spring (14) must be provided on the control lever.
  • the first component need not be designed as a lever. It can be a tubular body, a pot-shaped body, or also a disk-shaped body which has a recess for receiving a part of the second component.
  • a first component and a second component which are rotatable about a common axis of rotation, are connected to one another by means of an overload clutch, in such a way that, on the one hand, both components under the influence of the frictional engagement or non-positive connection between the clamping body , the elastic element and the two components that are operatively connected to these parts can be rotated together about an axis of rotation and, on the other hand, a relative movement between the two components is made possible about the same axis of rotation.
  • the friction or frictional connection takes place between the first component and the clamping element.
  • the elastic element can also be arranged between the peripheral surface of the clamping body and a bore wall in the first component.
  • the elastic element can consist of a spring or also of a component causing a frictional effect, for example of an elastic material.
  • Elastically deformable teeth which are arranged on the mutually facing sides of the first component and the second component, can also serve as an overload clutch.
  • the second component and the clamping body can be formed as a one-piece structural unit.
  • the device according to the invention is not limited to the exemplary embodiment. It can be used wherever a second component, which is normally connected in a rotationally fixed manner to a first component, is to be arranged such that it can be rotated relative to the first component, in order to provide means connected to the second component, such as, for example, a display device (scale with pointer) or actuating devices that can be operated by means of an actuator (first component), e.g. a lever that can be operated to adjust.
  • a display device scale with pointer
  • actuating devices that can be operated by means of an actuator (first component), e.g. a lever that can be operated to adjust.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Control Devices (AREA)
  • Mechanical Operated Clutches (AREA)

Claims (10)

  1. Dispositif pour ajuster la position d'un arbre d'entraînement (21) d'un potentiomètre (25) par rapport à un levier de commande (5) relié à l'arbre d'entraînement (21) qui est monté de façon à pouvoir tourner dans un support (1), un accouplement de surcharge étant prévu, qui relie le levier de commande (5) à l'arbre d'entraînement (21), avec une première butée (37) et une deuxième butée, au moyen desquelles est fixé l'angle de rotation du levier de commande (5), avec en outre une saillie (36) pour faire tourner l'arbre d'entraînement (21) par rapport au levier de commande (5), dispositif caractérisé en ce que l'accouplement de surcharge consiste en un corps de serrage (11), qui est disposé dans une ouverture de passage (4) dans une pièce en forme de cuvette (9) du levier de commande (5) et qui est maintenu en précontrainte au moyen d'un ressort à disques (14) et en ce que le corps de serrage (11) ou un prolongement (18) relié au corps de serrage (11) est relié sans pouvoir tourner à l'arbre d'entraînement (21).
  2. Dispositif selon la revendication 1, caractérisé en ce que pour relier le corps de serrage (11) ou la pièce (18) reliée à celui-ci au deuxième composant (21), il est prévu sur le corps de serrage (11) ou sur le prolongement (18) relié à celui-ci sur le côté tourné vers l'arbre d'entraînement (21) une saillie (19), qui est en prise avec des moyens prévus sur l'arbre d'entraînement (21).
  3. Dispositif selon la revendication 1, caractérisé en ce que le ressort à disques (14) s'appuie sur le levier de commande (5) et/ou sur une pièce reliée au levier de commande (5) et actionne le corps de serrage (11) en direction de l'arbre d'entraînement (21), de telle façon que le corps de serrage (11) est relié au levier de commande (5) par interpénétration par la forme ou par la force.
  4. Dispositif selon la revendication 1, caractérisé par les particularités suivantes :
    a) l'ouverture de passage (4, 7, 8) dans le levier de commande (5) est constituée à gradins, le côté situé à l'opposé de l'arbre d'entraînement (21) de l'ouverture de passage (4, 7, 8) présentant la plus grande section transversale.
    b) le corps de serrage (11) est mis à l'intérieur de la pièce (8) présentant la section transversale la plus grande de l'ouverture de passage (4, 7, 8).
  5. Dispositif selon la revendication 1, caractérisé en ce que le corps de serrage (11) repose sur une saillie formée par un gradin (7) de l'ouverture de passage (4,8).
  6. Dispositif selon les revendications 1 et 3, caractérisé par les particularités suivantes :
    a) dans la paroi, qui délimite la pièce (8) présentant la plus grande section transversale de l'ouverture de passage (4, 7, 8), est disposée une rainure périphérique (16), qui est constituée comme une surface d'appui pour un circlip (15).
    b) le circlip (15) sert d'aboutement pour le ressort à disques (14) qui actionne le corps de serrage (11) en direction du gradin (7) dans l'ouverture de passage à gradins (4, 8) et maintient ce corps en précontrainte sur le gradin (7).
  7. Dispositif selon l'une des revendications précédentes 1 à 6, caractérisé en ce qu'un prolongement (18) en forme de tenon, du corps de serrage (11) sert de pièce reliée au corps de serrage (11), corps qui s'étend dans la pièce (4) de l'ouverture de passage (4, 8) présentant la plus petite section transversale, en direction de l'arbre d'entraînement (21).
  8. Dispositif selon l'une des revendications précédentes 2 à 7, caractérisé en ce que sur le côté tourné vers l'arbre d'entraînement du prolongement en forme de tenon (18), est disposée une saillie (19) s'étendant sur l'arbre d'entraînement (21), saillie qui plonge dans un évidement (20) de l'arbre d'entraînement (21).
  9. Dispositif selon la revendication 8, caractérisé en ce que la longueur de la saillie (19) du prolongement en forme de tenon (18) et la profondeur de l'évidement (20) dans l'arbre d'entraînement (21) ont des dimensions telles qu'entre le fond délimitant l'évidement (20) et la face frontale tournée vers ce fond de la saillie (19), il subsiste une fente.
  10. Dispositif selon l'une des revendications précédentes 3 à 9, caractérisé par les particularités suivantes :
    a) le corps de serrage (11) présente sur son côté tourné vers le gradin (7) de l'ouverture de passage (4, 8).
    b) le gradin sert d'appui pour une bague d'étanchéité (16).
    c) La bague d'étanchéité (16) repose de façon étanche sur le gradin (7) de l'ouverture de passage (4, 8) et sur le corps de serrage (11).
EP89116846A 1988-11-10 1989-09-12 Dispositif pour ajuster la position de deux pièces reliées entre elles et tournant autour du même axe Expired - Lifetime EP0367943B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3838087 1988-11-10
DE3838087A DE3838087A1 (de) 1988-11-10 1988-11-10 Einrichtung zum justieren der position von zwei um eine gemeinsame drehachse drehbaren und miteinander verbundenen bauteilen zueinander

Publications (3)

Publication Number Publication Date
EP0367943A2 EP0367943A2 (fr) 1990-05-16
EP0367943A3 EP0367943A3 (en) 1990-06-06
EP0367943B1 true EP0367943B1 (fr) 1993-06-02

Family

ID=6366853

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89116846A Expired - Lifetime EP0367943B1 (fr) 1988-11-10 1989-09-12 Dispositif pour ajuster la position de deux pièces reliées entre elles et tournant autour du même axe

Country Status (3)

Country Link
EP (1) EP0367943B1 (fr)
DE (2) DE3838087A1 (fr)
NO (1) NO893736L (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19537778A1 (de) * 1995-10-11 1997-04-17 Leybold Ag Lagergehäuse zur Aufnahme eines zylindrischen Lagerkörpers
DE19847081B4 (de) * 1998-10-02 2004-06-03 Brose Fahrzeugteile Gmbh & Co. Kg, Coburg Beidseitig wirkender manueller Antrieb zur Erzeugung einer Drehbewegung
US20040168539A1 (en) * 2003-02-28 2004-09-02 Honeywell International Inc. Brake handle with integral position sensing
US7096796B2 (en) 2003-02-28 2006-08-29 Honeywell International Inc. Brake handle with integral position sensing switch

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2025831A (en) * 1934-10-22 1935-12-31 Chicago Telephone Supply Co Frictional coupling for circuit controllers
US2921285A (en) * 1959-01-19 1960-01-12 Oilgear Co Preset transducer assembly
DE1283603B (de) * 1965-04-06 1968-11-21 Werner Altmann Feststellvorrichtung fuer zwei um eine Drehachse gegeneinander bewegbare Teile
US3605521A (en) * 1970-03-26 1971-09-20 Charles A Glenn Indexing handle for a tool
DE2366368C2 (de) * 1973-07-12 1982-07-01 Georg Kesel GmbH & Co KG, 8960 Kempten Reibungsschlupfkupplung
US3915026A (en) * 1974-07-29 1975-10-28 Wallace Murray Corp Lobe type pump adjustment
US3996549A (en) * 1974-10-21 1976-12-07 Cts Corporation Electrical control and mechanical coupling therefor
DE7515667U (de) * 1974-11-21 1975-09-18 Dau P & Co Abstimmpotentiometer
US4390859A (en) * 1981-04-09 1983-06-28 Honeywell, Inc. Electric thermostat with adjusting knob
FR2542915B1 (fr) * 1983-03-18 1985-11-15 Electro Resistance Composant electronique a double ajustage, par exemple potentiometre
DE3611325A1 (de) * 1986-04-04 1987-10-08 Heidelberger Druckmasch Ag Vorrichtung zur verstellung der relativen drehlage zwischen einem zahnrad und einem mit diesem gleichachsig gelagerten zahnkranz

Also Published As

Publication number Publication date
EP0367943A3 (en) 1990-06-06
NO893736D0 (no) 1989-09-20
DE58904564D1 (de) 1993-07-08
EP0367943A2 (fr) 1990-05-16
NO893736L (no) 1990-05-11
DE3838087A1 (de) 1990-05-17

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