EP1644645A1 - Remote controller for heavy construction machines with pushrod follower - Google Patents
Remote controller for heavy construction machines with pushrod followerInfo
- Publication number
- EP1644645A1 EP1644645A1 EP04767450A EP04767450A EP1644645A1 EP 1644645 A1 EP1644645 A1 EP 1644645A1 EP 04767450 A EP04767450 A EP 04767450A EP 04767450 A EP04767450 A EP 04767450A EP 1644645 A1 EP1644645 A1 EP 1644645A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pusher
- head
- cavity
- remote control
- movement
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
- F15B13/0422—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with manually-operated pilot valves, e.g. joysticks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0401—Valve members; Fluid interconnections therefor
- F15B2013/0409—Position sensing or feedback of the valve member
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8158—With indicator, register, recorder, alarm or inspection means
- Y10T137/8225—Position or extent of motion indicator
- Y10T137/8242—Electrical
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8158—With indicator, register, recorder, alarm or inspection means
- Y10T137/8225—Position or extent of motion indicator
- Y10T137/8275—Indicator element rigidly carried by the movable element whose position is indicated
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/87056—With selective motion for plural valve actuator
- Y10T137/87064—Oppositely movable cam surfaces
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/87056—With selective motion for plural valve actuator
- Y10T137/87072—Rotation about either of two pivotal axes
Definitions
- the present invention relates to the technical field of remote controls, for public works vehicles, in particular so-called electro-hydraulic remote controls.
- the invention relates more particularly to remote controls which are intended to allow the control of one or more receiving members, in particular users of pressurized fluid, from a handle operated by the operator to transmit a control signal to said members hydraulic receivers.
- the remote controls usually encountered on board public works vehicles include: - a body which comprises at least one cavity extending between a through end on at least one upper face of the body and a bottom opposite the open end, - at least a first pusher which extends between a head and a foot, which is mounted to slide in a reciprocating movement in said at least one body cavity in an axial direction between a rest position and a depressed position, and which is intended to allow the control of at least one first receiver external to the remote control, and - a handle which comprises a transverse skirt and which is pivotally mounted relative to the body opposite the upper face of said body to control the movement of va back and forth from said first pusher, the skirt being in simple support on the head of said pusher, and the axis of the handle forming with the axis of the pusher a variable acute angle.
- the remote control of the aforementioned type is essentially characterized in that at least the head of the first pusher is also movable towards an extended position which is opposite to the depressed position relative to said rest position.
- the remote control further comprises detection means to detect the position occupied by the head of the first pusher between its extended and depressed positions.
- the detection means are of the type without mechanical contact.
- the detection means comprise a magnet which is integral in movement with the head of the pusher.
- the cavity is stepped and comprises a first shoulder substantially transverse to the movement of the first pusher
- said pusher comprises an intermediate section which is integral in movement with the head and the foot of the pusher, which is located between its head and its foot, and which delimits an upper stop and a lower stop, the upper stop pressing against the first shoulder in the extended position of the plunger and the lower stop pressing against the bottom of the cavity in the depressed position of said plunger.
- the first return means are housed in the cavity. More preferably, the first return means comprise a flange carried by the intermediate section in the vicinity of the upper stop, and a first compression spring interposed between the flange and the bottom of the cavity.
- the cavity comprises a shoulder substantially transverse to the movement of the first pusher
- said pusher comprises a head and a foot integral in movement and movable in translation along the axis of the pusher with respect to an intermediate section, which is located between the head and the foot, and which delimits a high stop and a low stop, the high stop abutting against the shoulder when the pusher head is between its rest position and its extended position and the bottom stop abutting against the bottom of the cavity in the depressed position of said pusher.
- the first elastic return means are housed between the head of the pusher and the intermediate section of the pusher.
- the first elastic return means comprise a first compression spring interposed between the head of the pusher and the intermediate section of the pusher.
- second elastic return means are housed in the cavity to return the first pusher from its depressed position to its rest position.
- the second return means comprise a ring concentric with the first pusher, a second compression spring which is interposed between the ring and the bottom of the cavity, as well as a peripheral relief integral with the first pusher and intended to come resting on the ring, the cavity further comprising a second shoulder on which the ring abuts in the rest position of the first pusher.
- the second return means comprise a collar carried by the intermediate section in the vicinity of the upper stop, and a second compression spring interposed between the collar and the bottom of the cavity.
- a second pusher is mounted in a second body cavity, the second pusher being resiliently biased by a third compression spring so that the force to be exerted on the handle to push one of the first and second pusher is substantially constant .
- the second cavity is symmetrical with the first cavity with respect to the axis of the handle in the rest position.
- the head of the second pusher is movable towards an extended position which is opposite to the depressed position relative to said rest position and elastic return means urge the head of the pusher towards its extended position, so that at least the head of the second pusher has an autonomous upward movement.
- the foot of the first pusher is mounted passing through in the bottom of the cavity and internally carries the magnet.
- a Hall effect sensor is mounted in the body of the remote control, opposite the displacement of the magnet between the depressed and exit positions of the first pusher.
- the second pusher is located opposite the first pusher relative to the axis of the handle.
- the Hall effect sensor is embedded in resin to be placed in a sealed region.
- Figure 1 is a longitudinal sectional view of the remote control according to a first embodiment.
- Figure 2 is an enlarged view of the first pusher of Figure 1.
- Figures 3 and 4 are views similar to those of Figures 1 and 2, the handle having been tilted to move the first pusher to its depressed position.
- Figures 5 and 6 are views similar to those of Figures 1 and 2, the handle having been tilted to the opposite position to allow movement of the first pusher to its extended position.
- Figure 7 is a longitudinal sectional view of the remote control according to a second embodiment.
- Figure 8 is a view similar to that of Figure 7, the handle having been tilted to move the first pusher to its depressed position.
- Figure 9 is a view similar to that of Figure 7, the handle having been tilted to the opposite position to allow movement of the head of the first pusher to its extended position.
- Figure 10 is a longitudinal sectional view of the remote control according to a third embodiment.
- Figure 11 is a view similar to that of Figure 10, the handle having been tilted to move the first pusher to its depressed position.
- Figure 12 is a view similar to that of Figure 10, the handle having been tilted to the opposite position to allow movement of the head of the first pusher to its extended position.
- a remote control 1 for public works machines which comprises, in a manner known per se, a body 2, at least a first pusher 3 which is slidably mounted in the body 2 and a handle 4 which is tiltably mounted relative to this body for controlling the back-and-forth movements of the first pusher 3 inside the body 2.
- the first pusher 3 is slidably mounted inside a first cavity 5 which extends between a through end 6 on at least one upper face 7 of the body 2 and a bottom 8 opposite this open end 6.
- the body 2 has a longitudinal axis XX and the first pusher 3 slides parallel to this axis XX.
- the handle 4 is pivotally mounted relative to the body 2, opposite the upper face 7 of this body to control the back-and-forth movements of said first pusher 3.
- This handle 4 is of axis YY and has a transverse skirt 10 which makes it possible to control said at least one first pusher 3.
- the axis YY of the handle 4 forms with the axis of the pusher 3 a variable acute angle which is a function of the position to be given to the pusher.
- the positions of the handle shown in Figures 3 and 5 are used to control said first pusher 3 respectively towards its depressed position, and its extended position. To this end, said pusher 3 extends between a head 12 and a foot 13.
- the head 12 is mounted in reciprocating movement at the level of the through end 6 of the body 2 so that the skirt 10 the handle 4 is simply pressed on this head 12.
- the foot 13 of the pusher 3 is housed in the bottom 8 of the cavity 5 to allow the control of at least one first receiver external to the remote control.
- the head 12 of the first pusher 3 abuts under the skirt 10 of the handle 4 and is controlled between its rest position such that shown in Figures 1 and 2, and its depressed position as shown in Figures 3 and 4, as is well known in the prior art.
- this first pusher 3 is also movable towards an extended position as shown in FIGS. 5 and 6, this extended position being opposite to the depressed position relative to the rest position.
- the remote control has first elastic return means 15 which are housed in the cavity 5 to urge the first pusher 3 towards its extended position so that this pusher has its own upward movement. .
- the handle 4 is tilted so as to release the head 12 from the pusher 3 so that this head 12 has an upward movement to follow the skirt 10 under the sole action of the first elastic return means 15.
- the remote control 1 also comprises detection means 17 which make it possible to detect any position occupied by this first pusher 3 between its extended and depressed positions.
- the cavity 5 is stepped and comprises a first shoulder 20 situated below the through end 6 and which extends substantially transversely to the movement of the first pusher 3 that is to say, substantially perpendicular to the axis XX.
- the pusher 3 has an intermediate section 22 which is of larger diameter than the head 12 and the foot 13 of this pusher and which is located along the length of said pusher.
- the head 12, the foot 13 and the intermediate section 22 are integral in movement.
- This intermediate section thus has an upper face 23 which delimits a high stop and a lower face 24 which delimits a low stop.
- the upper face 23 is turned in the direction of the first shoulder 20 while the lower face 24 is turned in the direction of the bottom 8 of the cavity 5.
- the first return means 15 preferably comprise a flange 26 which is carried by the intermediate section 22, in the vicinity of the upper stop 23, this flange being turned towards the bottom 8 of the cavity 5.
- the first elastic return means 15 also include a first compression spring 27 which is interposed between the flange 26 and the bottom 8 of the cavity 5.
- This compression spring 27 is of a diameter slightly greater than that of the intermediate section 22 so as to be fitted on this section to reach the flange 26.
- the first pusher 3 has an upward movement which is forced by the first compression spring 27 so that when the head 12 of this pusher 3 is released by the skirt 10 of the handle 4, the pusher 3 has an upward movement towards its extended position thanks to the compression means 27.
- the telec The control 1 has second elastic return means 30 which are housed in the cavity 5 to return this first pusher 3 from its depressed position as shown in FIGS. 3 and 4, to its rest position as shown in FIGS. 1 and 2.
- the second elastic return means 30 comprise a ring 31 which is concentric with the first pusher 3, a second compression spring 32 which is interposed between the ring 31 and the bottom 8 of the cavity 5, as well as a peripheral relief 33 which is integral in movement with the first pusher 3 and which is intended to come to bear on the ring 31.
- the cavity 5 has a second shoulder 35 located at an intermediate level between the first shoulder 20 and the bottom 8 of the cavity 5.
- the second compression spring 32 biases the ring 31 in the direction of the second shoulder 35 so that this ring 31 comes in abutment against this second shoulder when the first pusher 3 is in its rest position as shown in FIGS. 1 and 2.
- the second shoulder 35 thus somehow defines the rest position of the pusher 3.
- the pusher 3 is thus in equilibrium in its rest position between the action exerted by the skirt 10 on the head 12 which tends to push the pusher 3, and the action of the first compression spring and the second compression spring 27 and 32.
- the ring 31 is in abutment against the second shoulder 35 while the peripheral relief 33 abuts against this ring 31 under the action of the handle 4.
- the skirt 10 of the handle 4 biases the head 12 of the pusher 3 downwards so that the intermediate section 22 drives downward the concentric ring 31 and compresses the compression springs 27 and 32 until this intermediate section 22 is in low stop against the bottom 8 of the cavity 5.
- the detection means 17 are of the type without mechanical contact and comprise for example a magnet 40 which is integral in movement with the pusher 3 while being mounted inside the foot 13 of this pusher, as well as an effect sensor Hall 41 which is mounted in the body 2 of the remote control 1, opposite the displacement of the magnet 40 between the depressed and exit positions of the first pusher 3. More precisely, the Hall effect sensor 41 is mounted in the body 2, beyond the bottom 8 of the cavity 5. Thus, this sensor 41 can be embedded in a material such as resin to make it waterproof.
- a second pusher 50 is installed in the body 2 of the remote control 1 in order to allow the handle 4 to be balanced.
- a passive pusher since it does not allow a control signal to be transmitted to a receiving member. It is installed in a cavity 51 formed in the body 2 opposite the first cavity 5 relative to the axis of the handle 4.
- This second pusher 50 also has a head 52 bearing under the skirt 10 of the handle 4 and a foot 53. This foot 53 abuts in the bottom of the second cavity 51 and has a collar 55 which abuts against the upper part 56 of the cavity 51.
- This cavity 51 extends parallel to the axis XX and between the levels defined by the bottom 8 of the first cavity 5 and the rest position defined by the second shoulder 35 of the first cavity 5.
- This second pusher 50 is biased by a third compression spring 60 which is interposed between the flange 55 and the bottom of this cavity so as to elastically urge this second plunger 50 and to cause the operator, the same force on the handle 4 to push the first plunger 3 or the second plunger 50.
- a third compression spring 60 which is interposed between the flange 55 and the bottom of this cavity so as to elastically urge this second plunger 50 and to cause the operator, the same force on the handle 4 to push the first plunger 3 or the second plunger 50.
- the remote control 1 for public works vehicles comprises, as in the first embodiment, in a manner known per se, a body 2, at least a first pusher 62 which is slidably mounted in the body 2 and a handle 4 which is pivotally mounted relative to this body to control the reciprocating movements of the first pusher 62 inside the body 2.
- the first pusher 62 is slidably mounted inside a first cavity 63 which extends between a through end 65 on at least one upper face 7 of the body 2 and a bottom 66 opposite this open end 65.
- the cavity 63 comprises a shoulder 64 located below the through end 65 and which extends substantially transversely to the movement of the first pusher 62, that is to say, substantially perpendicular to the axis X-X.
- the pusher 62 comprises: a head 67 produced in the form of a cap comprising a cylindrical housing closed at its end 68 intended to be in contact with the skirt 10 of the handle 4 by forming a bottom, a foot 69 produced in the form of a cylindrical rod of diameter less than the housing of the head 67 fixed to the bottom thereof coaxially by one of its ends, an intermediate section 70, of generally cylindrical shape, comprising a cylindrical housing 72 allowing to receive the end of the cap constituting the head 67 opposite to that intended to be in contact with the handle 4.
- the bottom of the housing 72 has a central opening 73 of axis XX of diameter substantially equal to the stem of the foot 69 allowing the passage of it.
- the head 67 of the first pusher 62 abuts under the skirt 10 of the handle 4 and is controlled between its rest position as shown in Figure 7, and its depressed position as shown in Figure 8, as is well known in the art.
- the foot 69 of the pusher 62 is housed in the bottom 66 of the cavity 63 to allow the control of at least one first receiver external to the remote control.
- the head 67 of the first pusher 62 is also movable towards an extended position as shown in FIG. 9, this extended position being opposite to the depressed position relative to the rest position.
- the remote control has first elastic return means 74 constituted by a spring 74 housed axially between the bottom of the housing 72 and the bottom 68 of the cap forming the head 67.
- the first elastic return means 74 urge the head 67 of the first pusher 62 to its extended position so that this head 67 of the pusher 62 has its own upward movement.
- the handle 4 is tilted so as to disengage the head 67 from the pusher 62 so that this head 67 has an upward movement to follow the skirt 10 under the action of the first elastic return means 74 towards its exit position.
- the intermediate section 70 has an upper face 75 which delimits an upper stop and a lower face 76 which delimits a lower stop.
- the upper face 75 is turned towards the shoulder 64 while the lower face 76 is turned towards the bottom 66 of the cavity 63.
- the upper stop 75 is intended to come into abutment against the shoulder 64 as shown in FIGS. 7 and 9 when the pusher is not in the depressed position, while the lower stop 76 is intended to come into pressing against the bottom 66 of this cavity in the depressed position of the pusher as shown in FIG. 8.
- the shoulder 64 thus somehow defines the rest position of the pusher 3.
- the remote control 1 has second elastic return means 77 which are housed in the cavity 63 to recall this first pusher 62 from its depressed position as shown in Figure 8, to its position rest as shown in Figure 7.
- the second return means 77 preferably comprises a flange 78 which is carried by the intermediate section 70, in the vicinity of the upper stop 75, this flange being turned towards the bottom 66 of the cavity 63.
- the second elastic return means 77 also comprise a second compression spring 79 which is interposed between the flange 78 and the bottom 66 of the cavity 63. This compression spring 79 has a diameter slightly greater than that of the section intermediate 70 so as to be fitted on this section to reach the flange 78.
- the remote control 1 comprises detection means 17 which make it possible to detect any position occupied by this first pusher 62 between its extended and depressed positions.
- the pusher 62 is in equilibrium in its rest position between the action exerted by the skirt 10 on the head 67 which tends to push the pusher 62, and the action of the first compression spring and the second compression spring 74 and 79.
- the upper stop 75 is in abutment against the shoulder 64 while the head 67 is in axial abutment against the bottom of the housing 72 of the intermediate section 70 under the action of the handle 4.
- the first spring 74 is compressed.
- the skirt 10 of the handle 4 biases the head 67 of the pusher 62 downwards so that the intermediate section 70 compresses the second compression spring 79 until that this intermediate section 70 is in bottom abutment against the bottom 66 of the cavity 63.
- the head 67 of this pusher has been released by the skirt 10 of the handle 4 so that the intermediate section 70 has come into high abutment against the shoulder 64 under the action of the second compression spring 79.
- the first compression spring 79 is relaxes.
- the head 67 is no longer in axial abutment against the bottom of the housing 72 of the intermediate section 70 when the head 67 of the pusher moves from its rest position to its extended position.
- the head 67 of the pusher 62 occupies any position between its depressed position and its extended position.
- the foot 69 of the pusher 62 extends beyond the bottom 66 of the cavity 63 so as to cross this bottom back and forth between its extended and depressed positions.
- the detection means 17 are of the type without mechanical contact and comprise, for example, a magnet 40 which is integral in movement with the foot of the pusher 62 while being mounted inside the latter. , as well as a Hall effect sensor 41 which is mounted in the body 2 of the remote control 1, opposite the displacement of the magnet 40 between the depressed and outgoing positions of the first pusher 62.
- the Hall effect sensor 41 is mounted in the body 2, beyond the bottom 66 of the cavity 63.
- this sensor 41 can be embedded in a material such as resin to make it waterproof .
- a second pusher 80 is installed in the body 2 of the remote control 1 in order to allow the balance of the handle 4.
- This second pusher 80 is a passive push button insofar as it does not make it possible to transmit a control signal to a receiving member. It is installed in a cavity 82 formed in the body 2 opposite the first cavity 63 relative to the axis of the handle 4. This cavity 82 is symmetrical relative to the axis of the handle of the first cavity 63.
- This second pusher 80 has a symmetrical shoulder 86 of the shoulder 64 of the first cavity. The bottom of this cavity is not pierced like the first cavity 63.
- This second pusher 80 also has a head 83 bearing under the skirt 10 of the handle 4 and a section 84 integral with the head 83.
- the section 84 of the second pusher 80 is identical to the intermediate section 70 of the first pusher, and the head 83 of the second pusher is identical to the head 67 of the first pusher 62, these two parts however being integral, unlike the first pusher 62
- This section 84 abuts in the bottom of the second cavity 82 and has a flange 85 which abuts against the shoulder 86 of the cavity 82.
- This cavity 82 extends parallel to the axis XX and between the levels defined by the bottom 66 of the first cavity 63 and the rest position defined by the shoulder 64 of the first cavity 63. Furthermore, this second pusher 80 is biased by a third compression spring 86, identical to the first compression spring 74, which is interposed between the flange 85 and the bottom of this cavity so as to elastically urge this second pusher 80 and cause the operator, the same force on the handle 4 to push the first pusher 62 or second pusher 80.
- the number of constituent parts is reduced compared to the first embodiment so as to minimize the cost price and the risks of technical failure.
- the mounting of a remote control according to this second embodiment is simplified by the use of identical parts between the first and the second pusher.
- the stroke of the first compression spring is reduced compared to the first embodiment.
- the second pusher 87 which likewise comprises a head 88 and a section 89
- the head and the section are not integral, a compression spring 90 being housed between the head 88 and the section 89, similarly to the first pusher.
- the head 88 of the second pusher 87 follows the skirt 10 of the handle 4 This arrangement makes it possible to reinforce the symmetry of the assembly, thus avoiding assembly errors, and moreover guarantees a torque in the symmetrical handle between the positions d 'sinking and exit.
- the invention is not limited to the examples described above and various modifications can be made without departing from its scope.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Percussion Or Vibration Massage (AREA)
- Mechanical Control Devices (AREA)
- Operation Control Of Excavators (AREA)
- Actuator (AREA)
- Catching Or Destruction (AREA)
- Tunnel Furnaces (AREA)
- Vending Machines For Individual Products (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Servomotors (AREA)
- Fluid-Damping Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0308566A FR2857488A1 (en) | 2003-07-11 | 2003-07-11 | Remote control for public works vehicle, has plunger movable towards exit position opposed to pushed position along axial direction in body cavity, and detection unit detecting plunger position |
FR0401894A FR2857489B1 (en) | 2003-07-11 | 2004-02-25 | REMOTE CONTROL FOR PUBLIC WORKS MACHINES WITH PUSHER FOLLOWER |
PCT/FR2004/001601 WO2005015031A1 (en) | 2003-07-11 | 2004-06-24 | Remote controller for heavy construction machines with pushrod follower |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1644645A1 true EP1644645A1 (en) | 2006-04-12 |
EP1644645B1 EP1644645B1 (en) | 2008-02-20 |
Family
ID=33542633
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04767450A Expired - Lifetime EP1644645B1 (en) | 2003-07-11 | 2004-06-24 | Remote controller for heavy construction machines with pushrod follower |
Country Status (9)
Country | Link |
---|---|
US (1) | US7467644B2 (en) |
EP (1) | EP1644645B1 (en) |
JP (1) | JP2007526970A (en) |
KR (1) | KR101115555B1 (en) |
AT (1) | ATE386886T1 (en) |
DE (1) | DE602004011940T2 (en) |
DK (1) | DK1644645T3 (en) |
FR (1) | FR2857489B1 (en) |
WO (1) | WO2005015031A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3096162A1 (en) | 2019-05-15 | 2020-11-20 | Robert Bosch Gmbh | "Work machine remote control" |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2886035B1 (en) * | 2005-05-18 | 2007-08-03 | Bosch Rexroth D S I Soc Par Ac | REMOTE CONTROL OF MACHINE, ESPECIALLY PUBLIC WORKS MACHINE |
JP4716499B2 (en) * | 2005-10-17 | 2011-07-06 | 株式会社小松製作所 | Pilot valve with lever position detection function |
BRPI0717271A2 (en) | 2006-09-28 | 2013-10-22 | Qualcomm Inc | UNION OF EFFICIENCY COMMUNICATION SIGNS |
FR2938309B1 (en) * | 2008-11-12 | 2010-10-29 | Bosch Rexroth Dsi Sas | PRESSURE REGULATION DEVICE, IN PARTICULAR OF THE HYDRAULIC REMOTE CONTROL TYPE |
JP5238739B2 (en) * | 2010-02-26 | 2013-07-17 | 川崎重工業株式会社 | Operating device |
FR2970350B1 (en) * | 2011-01-07 | 2013-11-01 | Bosch Rexroth Dsi Sas | PRESSURE REGULATION DEVICE WITH DETECTION OF THE NEUTRAL POSITION |
WO2015056595A1 (en) * | 2013-10-18 | 2015-04-23 | 株式会社小松製作所 | Stroke detection device, stroke detection method, stroke detection system, operation lever unit, and stroke detection system for operation lever |
JP7112385B2 (en) * | 2017-02-28 | 2022-08-03 | 株式会社小松製作所 | operating lever |
IT202000023773A1 (en) | 2020-10-08 | 2022-04-08 | Walvoil Spa | CONTROL EQUIPMENT FOR ACTIVATING HYDRAULIC VALVE SYSTEMS |
IT202000023860A1 (en) | 2020-10-09 | 2022-04-09 | Walvoil Spa | CONTROL EQUIPMENT FOR ACTIVATING HYDRAULIC VALVE SYSTEMS |
EP3992749A1 (en) | 2020-10-08 | 2022-05-04 | Walvoil S.p.A. | Control equipment for operating valve hydraulic systems |
IT202100000875A1 (en) | 2021-01-19 | 2022-07-19 | Walvoil Spa | LEVER CONTROL DEVICE |
DE102021205349A1 (en) | 2021-05-26 | 2022-12-01 | Robert Bosch Gesellschaft mit beschränkter Haftung | joystick |
DE102021205814A1 (en) | 2021-06-09 | 2022-12-15 | Robert Bosch Gesellschaft mit beschränkter Haftung | joystick |
DE102022200968A1 (en) | 2022-01-31 | 2023-08-03 | Robert Bosch Gesellschaft mit beschränkter Haftung | joystick |
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FR2781845B1 (en) * | 1998-07-28 | 2002-03-08 | Mannesmann Rexroth Sa | FLUID DISTRIBUTOR DEVICE, PARTICULARLY FOR HYDRAULIC REMOTE CONTROL |
FR2801350B1 (en) * | 1999-11-23 | 2002-03-29 | Mannesmann Rexroth Sa | FLUID DISTRIBUTOR DEVICE, PARTICULARLY FOR HYDRAULIC REMOTE CONTROL |
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JP4099749B2 (en) * | 2002-01-17 | 2008-06-11 | Smc株式会社 | Air servo valve |
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2004
- 2004-02-25 FR FR0401894A patent/FR2857489B1/en not_active Expired - Fee Related
- 2004-06-24 KR KR1020067000735A patent/KR101115555B1/en not_active IP Right Cessation
- 2004-06-24 EP EP04767450A patent/EP1644645B1/en not_active Expired - Lifetime
- 2004-06-24 JP JP2006519948A patent/JP2007526970A/en active Pending
- 2004-06-24 DK DK04767450T patent/DK1644645T3/en active
- 2004-06-24 US US10/559,930 patent/US7467644B2/en not_active Expired - Fee Related
- 2004-06-24 AT AT04767450T patent/ATE386886T1/en not_active IP Right Cessation
- 2004-06-24 DE DE200460011940 patent/DE602004011940T2/en not_active Expired - Lifetime
- 2004-06-24 WO PCT/FR2004/001601 patent/WO2005015031A1/en active IP Right Grant
Non-Patent Citations (1)
Title |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3096162A1 (en) | 2019-05-15 | 2020-11-20 | Robert Bosch Gmbh | "Work machine remote control" |
Also Published As
Publication number | Publication date |
---|---|
DK1644645T3 (en) | 2008-06-23 |
FR2857489B1 (en) | 2006-06-09 |
US20060169498A1 (en) | 2006-08-03 |
DE602004011940D1 (en) | 2008-04-03 |
EP1644645B1 (en) | 2008-02-20 |
KR101115555B1 (en) | 2012-03-05 |
KR20060035749A (en) | 2006-04-26 |
JP2007526970A (en) | 2007-09-20 |
FR2857489A1 (en) | 2005-01-14 |
ATE386886T1 (en) | 2008-03-15 |
US7467644B2 (en) | 2008-12-23 |
DE602004011940T2 (en) | 2009-02-26 |
WO2005015031A1 (en) | 2005-02-17 |
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