EP3232295A2 - Steuerhebel für genaue operation - Google Patents

Steuerhebel für genaue operation Download PDF

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Publication number
EP3232295A2
EP3232295A2 EP17151342.7A EP17151342A EP3232295A2 EP 3232295 A2 EP3232295 A2 EP 3232295A2 EP 17151342 A EP17151342 A EP 17151342A EP 3232295 A2 EP3232295 A2 EP 3232295A2
Authority
EP
European Patent Office
Prior art keywords
control lever
circuit board
printed circuit
lever
spring
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
EP17151342.7A
Other languages
English (en)
French (fr)
Other versions
EP3232295B1 (de
EP3232295A3 (de
Inventor
Levent Erkocak
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.)
Makersan Makina Otomotiv Sanayi Ticaret AS
Original Assignee
Makersan Makina Otomotiv Sanayi Ticaret AS
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 Makersan Makina Otomotiv Sanayi Ticaret AS filed Critical Makersan Makina Otomotiv Sanayi Ticaret AS
Publication of EP3232295A2 publication Critical patent/EP3232295A2/de
Publication of EP3232295A3 publication Critical patent/EP3232295A3/de
Application granted granted Critical
Publication of EP3232295B1 publication Critical patent/EP3232295B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G9/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously
    • G05G9/02—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only
    • G05G9/04—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously
    • G05G9/047—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G9/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously
    • G05G9/02—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only
    • G05G9/04—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously
    • G05G9/047—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
    • G05G2009/04703—Mounting of controlling member
    • G05G2009/04714—Mounting of controlling member with orthogonal axes
    • G05G2009/04718—Mounting of controlling member with orthogonal axes with cardan or gimbal type joint
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G9/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously
    • G05G9/02—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only
    • G05G9/04—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously
    • G05G9/047—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
    • G05G2009/0474—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks characterised by means converting mechanical movement into electric signals
    • G05G2009/04755—Magnetic sensor, e.g. hall generator, pick-up coil
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G9/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously
    • G05G9/02—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only
    • G05G9/04—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously
    • G05G9/047—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
    • G05G2009/04766—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks providing feel, e.g. indexing means, means to create counterforce

Definitions

  • the present invention relates to an industrial control lever and more particularly to a reliable control lever with increased precision suitable to be used in industry, agriculture, construction equipment, marine vessels, aviation and similar fields of operation.
  • control levers also called as joysticks
  • joysticks are often used in industrial field in order to control movement in a number of axes.
  • control levers are used wherein a first axle part is connected to the body and a second axle part is connected on the first axle.
  • An example of such control levers is disclosed in US6462731 (B1).
  • a magnetic member should exactly face to the integrated circuit (IC) focus, and since the IC must exactly be positioned on the rotation axis and is located at the center, the first axle is formed as a convex and the second axle is formed as a concave so that a space is created therebetween.
  • a main board must be disposed at the lower section, and by the very nature of the system, those parts forming the first and second axles project outward.
  • control lever of the prior art is ball-joint control lever systems.
  • International patent application no. WO00/39654 may be given as an example for such control levers actuated with ball joints.
  • the control lever is spherically connected to the body, and it would be hard to eliminate the space which is thus created in the ball joints. Therefore, there is a need to provide a durable control lever with increased precision and increased security.
  • Principal object of the present invention is to provide a compact, reliable and precise control lever wherein a number of components are eliminated through use of a single printed circuit board.
  • Another object of the present invention is to provide a control lever with increased security achieved by means of independent springs.
  • Another object of the present invention is to provide a control lever which prevents an undesired positioning of the spring and maloperation by comprising projections that retain the torsion springs at the center, so that it has an increased security.
  • Another object of the present invention is to provide a control lever wherein a single magnetic member is sufficient.
  • Another object of the present invention is to provide a control lever wherein use of single printed circuit board is sufficient.
  • Another object of the present invention is to provide a control lever which provides a direct connector outlet for the user so that he will not need a cable.
  • Another object of the present invention is to provide a control lever wherein undesired positioning of the springs and maloperation is prevented by means of projections that retain the torsion springs at the center.
  • Another object of the present invention is to provide a control lever which prevents unauthorized persons to fill all components of the control lever assembly with resin so as to open the components.
  • Another object of the present invention is to provide a control lever which ensures effective friction due to the fact that the bottom of the pressure plate is made of TPE material and the upper part thereof is made of a more rigid material.
  • the present invention relates to a control lever for a heavy equipment, comprising a body; a printed circuit board assembly having a printed circuit board having thereon at least one sensor; a lever holder which has a central hole, through which a control arm is at least party engaged, wherein the control arm is rotatable about its longitudinal axis, and which has at least one cocking spring at each end, a magnetic member fastened to an end of the said control lever and suitable to interact with the sensor provided on the printed circuit board.
  • Said control lever comprises a lever supporting member in the form of "C”, which is arranged such that its opened section faces to the printed circuit board and which is suitable to rotate about its longitudinal axis, wherein the control arm is engaged into a slot provided at the center thereof, and at least one cocking spring is arranged at its each end.
  • the control lever (40) for a heavy equipment is formed to be used in industrial filed, agriculture, marine vessels, aviation and similar fields of operation.
  • Said control lever (40) mainly comprises at least one body (13), a printed circuit board (21) with a HAII IC (Hall-effect sensor integrated circuit) which is preferably disposed at the center of the body (13) in a horizontal manner, a lever holder (4) fastened to the said body (13) so as to move pivotally about an axis Y, a control arm (1) fastened to the lever holder (4) so as to freely rotate about an axis X, a magnetic member (7) fastened to the lower surface of the control lever and facing to the printed circuit board, and a lever supporting member (11) fastened to the axis X of the control arm (1) such that it can move pivotally.
  • HAII IC Haall-effect sensor integrated circuit
  • the lever supporting member (11) of the invention is C-shaped, which is arranged such that the closed section of C-shaped structure is located at the upper section, and which has a cavity at the center thereof which is suitable for allowing the control arm (1) to rotate freely at the axis Y, and which comprises at least two cocking springs (10) at each axis.
  • the control arm (1) is made of a material suitable for being attracted by a magnet, and it has a recess at a lower section (1a) facing to a printed circuit board (21) that is located immediately therebelow, in which recess a suitable magnetic member is received.
  • a suitable magnetic member For the said magnetic member, NdFeB or SmCo may be selected.
  • connection hole (1b) immediately above the recess, and in this cylindrical connection hole, a bushing (2) member corresponding to the hole (1b) is engaged.
  • a bushing connecting member (3) Disposed at the right and left sides of the bushing (2) member, there is provided one bushing connecting member (3) which is received in a suitable bushing hole (4a) in the lever holder (4).
  • each bushing (2) member is preferably used together with a suitable segment (6).
  • FIG 1 there is a hollow and preferably circular pin hole (4d) which is provided in the lever holder (4) in order to allow the lever holder (4) to rotate about the axis Y, and which is suitable for receiving a pin (8).
  • a bushing (9) is inserted onto an outer projection of each pin (8).
  • the spring arms (10a) of a corresponding cocking spring (10) are mounted into the montage area (4f) thereon, with a section of a lateral projection (4e) having a crescent (arc) shape and formed along the longitudinal axis of the lever holder (4) that is substantially formed in a cylindrical form being typically closed, which section facing to the printed circuit board (21).
  • Figure 6 shows a corresponding bushing (9), a cocking spring (10) and the spring arm (10a) mounted on the said control arm (1) as well as the montage area (4f) where they is mounted. Furthermore, figure 6 also includes recesses (13b and 13c) shaped and formed in a suitable manner.
  • a spring alignment projection (4g) supports the bottom section of the cocking spring (10) where there are no arms, thereby preventing undesired incidents such as undesired displacement of the spring.
  • the lever supporting member (11) having a C-shape has, at the center of its upper section, a slot (11a) which extends transversally. Said control arm (1) is engaged into the slot (11a) so that the control arm (1) is allowed to rotate about the longitudinal axis "Y", as seen in figure 6 .
  • two bushings (12) are shaped according to these lever supporting projections (11c) and inserted therein.
  • spring projections (11d) formed as a crescent and preferably positioned at that side facing to the printed circuit board (21).
  • two cocking springs (10) are inserted in the inner surface, i.e. inside (11e), of the opposite spring projections (11d) and set therein.
  • the spring alignment projections (11f) as shown in figure 5 support the bottom side of the spring arm that faces outward so that undesired displacement of the spring is avoided.
  • connecting members i.e. nuts are engaged into the said body (13) and they are fitted on the connection areas (15) by means of injection molding.
  • connection areas 15
  • the spring alignment projection (14d) supports the bottom side of the spring where there are no arms and prevents undesired displacement of the spring.
  • the connecting plate (16a) of the stopper plate (16) is inserted into the rectangular recess (13e) situated at the handle side of the said body (13) and is fixed by means of suitable connecting bolts (17) corresponding to the specific connection areas (15).
  • the bolt headspaces (16c) create a volume for resin filler (18) after montage. Loosening of the bolts that due to the vibrations that may occur during use is prevented and an intervention of unauthorized persons to the control lever (40) upon its purchase may be prevented.
  • each friction plate (19) preferably comprises two pressure springs (20) that extend in vertical direction.
  • such options are available as two free axles, two detent axles, 1 detent axle, 1 free axle (or vice versa), 1 detent axle, 1 friction axle (or vice versa), 1 friction axle 1 free axle (or vice versa), 2 friction axles.
  • the printed circuit board (21) is fixed to the printed circuit board hole (22) by means of a plurality of screws and through the corresponding connection holes (22a).
  • the inner side of the printed circuit board hole (22) that faces to the control lever has a hole for receiving the printed circuit board (21) also called as PCB.
  • FIG. 7 shows a printed circuit board assembly (25), inside of which is preferably coated with resin filler (25a). With this resin filler, a complete isolation may be achieved during the coating process, except the programming pins.
  • the printed circuit board assembly (25) is fixed to a mechanical assembly (26) shown in figure 10 preferably by means of four bolts (27) which are engaged into the connection areas (15) of the body (13) provided with special nuts. In this way, the entire control lever (40) is established.
  • the programming space is filled with resin filler (25a) so that it is fully sealed, and there is a resin hole (22f) on the area where the bolts are located which may filled with resin filler. In this way, loosening of the bolts due to vibration is prevented and an intervention to the control lever after purchase is avoided.
  • EMC contact sheet (23) is compressed between the protection sheet and the outer surface of the printed circuit board hole (22), while it is being engaged into the EMC external protection sheet (29), so that it is allowed to have a permanent contact therewith.
  • a bellow (30) which is preferably made of rubber material is placed around the circumference of upper body (13) and a cut seal (31) is fixed on the lower surface of the EMC external protection sheet (29), at its lower side, in order to ensure sealing of the control lever inner chamber.
  • the lever holder (4) there are two projections (4e) in the form of a semi spring like an arc, which are opened at that side facing to the printed circuit board (21) and have an arc shape in the direction of the axis Y, and said torsion springs are placed underside of these projections.
  • the lower side (19b) of the friction plates is preferably circular and the surface (4h) of the lever holder seats on the bearing area (11h), at the upper side of which, there is at least one spring. Said spring is pressed against the body (13) or the stopper plate (16) on the body.
  • the lower portion (19b) of the friction plates is made of rubber-based material (19c) and the upper portion (19a) thereof is made of rigid thermoplastic or metal and fixed by means of a clamp-fit surface (19d).
  • the printed circuit board assembly (25) is filled with resin filler until the elements of the printed circuit board (21) are located thereunder, and at the lower surface of the printed circuit board hole (22), there is a hole (22b) corresponding to the printed circuit board pins (21a) for programming. There is an elastic member (24) between this hole (22b) and the printed circuit board (21).
  • the outer surfaces of the corresponding bushing holes (13b, 13c) (14b, 14c) of the upper body (13) and the lower body member (14) are closed, and the upper body (13), the lower body member (14) and the printed circuit board body (22) are made of electrical insulating thermoplastic material.
  • the ESD sheet protects the control lever (40) against the external effects by means of a grid generated upon a strong magnetic current.
  • Hall effect sensors have certain criteria for efficient operation.
  • One of them is rotation angle ( ⁇ ), which is determined to be 20° in standard, meaning that it cannot be changed.
  • Another parameter is the distance (h) between the magnetic member and hall-effect sensor, which distance is also determined in standard based on the flux density accepted by the said sensor. It is also not possible to change this parameter in the designing process.
  • Another important distance is the distance (d1, d2) between the rotation point, i.e. pivot point (P) and the magnetic member (7). This is the only parameter that may be mechanically intervened. Reducing the distance between the pivot point (P) and the magnetic member, i.e. the distance d2 as shown in figure 12a increases measurement precision.
  • the gap between the pivot point (P) and the magnetic member (40) may be made shorter compared to that in the single board configuration.
  • the distance (d1) of the pivot point (P) to the magnetic member (7) may be optimized so as to be shorter. Especially upon a full rotation of the magnetic member, and also travelled to the extreme points within the ranges it is allowed to travel, the magnetic angle will not be increased tremendously and the magnetic flux density will be prevented to reduce further so that the hall-effect sensor can make a precise measurement.
  • the distance (d2) between the said pivot point (P) and the magnetic member (7) is kept longer. In this way, if the distance is long, precision will be lower than that in figure 12a .

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Switches With Compound Operations (AREA)
  • Mechanical Control Devices (AREA)
EP17151342.7A 2016-04-13 2017-01-13 Steuerhebel für genaue operation Active EP3232295B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TR2016/04770U TR201604770U (tr) 2016-04-13 2016-04-13 Hassas Şekilde Çalışmaya Uygun Bir Endüstriyel Kumanda Kolu.

Publications (3)

Publication Number Publication Date
EP3232295A2 true EP3232295A2 (de) 2017-10-18
EP3232295A3 EP3232295A3 (de) 2018-01-31
EP3232295B1 EP3232295B1 (de) 2023-08-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP17151342.7A Active EP3232295B1 (de) 2016-04-13 2017-01-13 Steuerhebel für genaue operation

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EP (1) EP3232295B1 (de)
TR (1) TR201604770U (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020145910A1 (en) * 2019-01-10 2020-07-16 Makersan Makina Otomotiv Sanayi Ticaret Anonim Sirketi Joystick movable in multi-axes with an enhanced security
WO2020145911A1 (en) * 2019-01-10 2020-07-16 Makersan Makina Otomotiv Sanayi Ticaret Anonim Sirketi Joystick with a precise control

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4559420A (en) 1983-10-14 1985-12-17 Alps Electric Co., Ltd. Omnidirectional changeover switch
US5068499A (en) 1989-04-14 1991-11-26 Alps Electric Co., Ltd. Control lever type input device
WO2000039654A2 (de) 1998-12-24 2000-07-06 Mannesmann Rexroth Ag Handbetätigtes elektrisches steuergerät
US6462731B1 (en) 1998-08-21 2002-10-08 Itt Manufacturing Enterprises, Inc. Joystick

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008022850A1 (de) * 2007-11-27 2009-05-28 Fernsteuergeräte Kurt Oelsch GmbH Induktiver Handsteuergeber
DE202008008259U1 (de) * 2008-06-19 2009-10-29 Rema Lipprandt Gmbh & Co. Kg Joystick
DE102009010244A1 (de) * 2009-02-17 2010-08-19 Linde Material Handling Gmbh Steuerungsvorrichtung für eine mobile Arbeitsmaschine, insbesondere ein Flurförderzeug

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4559420A (en) 1983-10-14 1985-12-17 Alps Electric Co., Ltd. Omnidirectional changeover switch
US5068499A (en) 1989-04-14 1991-11-26 Alps Electric Co., Ltd. Control lever type input device
US6462731B1 (en) 1998-08-21 2002-10-08 Itt Manufacturing Enterprises, Inc. Joystick
WO2000039654A2 (de) 1998-12-24 2000-07-06 Mannesmann Rexroth Ag Handbetätigtes elektrisches steuergerät

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020145910A1 (en) * 2019-01-10 2020-07-16 Makersan Makina Otomotiv Sanayi Ticaret Anonim Sirketi Joystick movable in multi-axes with an enhanced security
WO2020145911A1 (en) * 2019-01-10 2020-07-16 Makersan Makina Otomotiv Sanayi Ticaret Anonim Sirketi Joystick with a precise control

Also Published As

Publication number Publication date
EP3232295B1 (de) 2023-08-23
TR201604770U (tr) 2017-10-23
EP3232295A3 (de) 2018-01-31

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