EP2666529B1 - Device for actuating a switch for a model railroad - Google Patents
Device for actuating a switch for a model railroad Download PDFInfo
- Publication number
- EP2666529B1 EP2666529B1 EP20130168258 EP13168258A EP2666529B1 EP 2666529 B1 EP2666529 B1 EP 2666529B1 EP 20130168258 EP20130168258 EP 20130168258 EP 13168258 A EP13168258 A EP 13168258A EP 2666529 B1 EP2666529 B1 EP 2666529B1
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- EP
- European Patent Office
- Prior art keywords
- trolley
- switch
- points
- pusher
- motor
- 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.)
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
- A63H19/00—Model railways
- A63H19/30—Permanent way; Rails; Rail-joint connections
- A63H19/32—Switches or points; Operating means therefor
Definitions
- a device for actuating a switch for a model railroad forms an object of the present finding.
- the switch which in technical jargon is usually termed turnover, is adapted to deviate the travel of a train from one track to another.
- the switch usually has fixed components, such as external rails, and movable components such as internal rails adapted to deviate the travel of the train.
- the internal rails are commonly called points.
- the points have a first end, commonly called heel, rotatably constrained to a fixed tie by means of first pins.
- a second end of the points is rotatably constrained to a tie movable by means of second pins.
- Said movable tie constrains the two point contacts of the points at a slightly lower distance than the internal distance between the two rails that constitute a main track.
- Said movable tie can be moved in a direction transverse to the points.
- Such movable tie allows the movement of the point contact of the points and the simultaneous rotation of the points themselves.
- the rotation of the points allows placing the point contact of one of the two points in contact with the respective rail, facilitating the passage of the train and preventing the derailing thereof.
- a point movement device is placed in proximity to the main track.
- Said point movement device usually comprises a motor capable of moving the movable tie, causing the rotation of the points and thus the deviation of the train travel.
- Said motors are usually electric motors, comprising a pair of solenoids arranged axially and adapted to move a slider along an axis defined by the conformation of said solenoids.
- Such solenoids are generally facing and substantially parallel to the main track or to the points.
- the two solenoids respectively allow moving said slider in a direction defined by the conformation of said solenoids and in the opposite direction.
- Said solenoids can be supplied with electrical power, for example by means of a push-button panel that allows alternately deviating the electric current to one of the two solenoids.
- the solenoids can also be power supplied by means of suitable digital installations operating via two channels respectively connected to the solenoids.
- the slider is associated with a metallic rod which, being in turn associated with a guide having a particular conformation, allows moving the movable tie and hence rotating the points.
- the movement of the movable tie and the simultaneous rotation of the points allow the passage of the train on the main track or alternatively allow deviating the travel of the train from the main track to a secondary or diverged track.
- the point in contact with the respective rail can be spaced from the latter, allowing the passage of the wheels of the train and preventing the derailment thereof.
- the metallic rod, being connected to the points can be bent, allowing the rotation of said points and the passage of the train in the above-described direction.
- a further drawback of the abovementioned solutions derives from the presence of the rod and/or of the device for moving the points having large bulk, such to not make the switch realistic, in particular making it disproportionate and hard to manage in complex switches.
- switches have been obtained in which the device for actuating a model railroad switch is housed in a cavity obtained on a plastic body, on which the switch is placed.
- Object of the present invention is to obtain a device for actuating a switch for a model railroad that is adapted to solve the abovementioned problems.
- a device for actuating a switch 2 for a model railroad is indicated with the reference number 1.
- Said switch 2 is a mechanism adapted to deviate the path of a train (not shown in the figures) from a main track (not indicated in the figures) to a diverged or secondary track (not indicated in the figures), in accordance with the direction of the arrow B ( Fig. 1 ).
- the switch 2 usually has fixed components, such as external rails 3 and 3' constrained to fixed ties 5, and movable components, such as internal rails 7 adapted to deviate the travel of the train.
- the internal rails 7 are commonly called points.
- the points 7 have a first end 9, commonly termed heel, rotatably constrained to one of the aforesaid fixed ties 5 by means of first pins 11.
- Said first pins 11 allow the rotation of the points 7 on an imaginary horizontal plane, on which the aforesaid rails 3 and 3' are placed.
- the first pins 11 are positioned in proximity to ends 13 of the external rails 3', in order to allow the easy passage of the train from the rails 3' to the points 7, and vice versa.
- a second end 15 of the points 7, commonly called point contact, is rotatably constrained to a movable tie 17 by means of second pins 19.
- the movable tie 17 can be moved in a substantially transverse direction Z with respect to the rails 3 and the points 7.
- the movable tie 17 can place one of the point contacts 15 in contact with the respective rail 3.
- the point contacts 15 are spaced from each other by a distance that is less than the distance present between the rails 3, the latter distance being measured at a portion 21 of the main track.
- a first point contact 16 is in contact with a respective first rail 18, a second point contact 16' is spaced from a respective second rail 18'.
- the distance present between the second point contact 16' and the respective second rail 18' allows the easy passage of a wheel (not shown in the figures) of the train on said second rail 18', preventing said rail from derailing following the impact with the second point contact 16'.
- the movable tie 17 and the points 7 connected thereto are moved by means of the device 1, connected to said points 7 by means of the aforesaid movable tie 17.
- Said device 1 is usually laterally constrained to the main track, and preferably at the point contacts 15.
- the device 1 comprises a support body 25 ( Fig. 2 ) constrainable to the switch 2, in particular to the ties 15, by means of normal constraining means (not shown in the figures), e.g. screws or nails, via suitable holes 27.
- said support body 25 can have a closure element (not shown in the figures) constrained above the support body 25 itself.
- a closure element allows protecting the device 25, for example from possible weathering agents or dust, in order to assure a correct functioning of the device 25 itself, simultaneously allowing the disassembly thereof in order to carry out normal maintenance operations.
- Said closure element is also realistically shaped and/or colored.
- a trolley 31 is slidably associated with the support body 25. Said trolley 31 can slide along a direction Y ( Fig. 2 ), that is for example transverse with respect to the points 7 in order to move them. Simultaneously, the trolley 31 can be constrained in a seat 29, e.g. by means of portions 34 of the support body 25 ( Fig. 3 ).
- Said seat 29, at end portions 33, can have means 37 for locking the trolley 31.
- Said locking means 37 allow the abutment of the trolley 31 in a first and second position, preventing said trolley 31 from exiting from the seat 29 and preventing the point contacts 15 from being excessively forced against the rails 3.
- the trolley 31 can be moved from the first to the second position, and vice versa, by means of a motor 41; a transmission member 39 is operatively interposed between the trolley 31 and the motor 41, and is adapted to transfer a sliding motion from said motor 41 to said trolley 31.
- the support body 25 has, for example, a through hole 42 ( Fig. 2 ) with circular or polygonal form, inside of which the transmission member 39 can be housed, in particular an end portion 38 thereof.
- the hole 42 has an extension 47 ( Fig. 3 and 6 ) adapted to increase the contact surface between the support body 25 and said transmission member 39.
- the external conformation of the end portion 38 and the internal conformation of the hole 42 and/or of the extension 47 are complementary to each other.
- the trolley 31 has an engagement portion 32 that interacts with the transmission member 39 for moving the trolley 31.
- the trolley 31 has a hole or a cavity 43 ( Fig. 4 ) in a manner such that, at least during the sliding of the trolley 31, the hole 42 and the hole or cavity 43 can be at least partly superimposed and/or facing.
- a contrast element 45 rigidly connected to the trolley 31 and engageable by said transmission member 39.
- Said contrast element 45 can be an element with elongated form, e.g. a wire or the like, that joins two internal portions 49 of the cavity or of the hole 43, said internal portions 49 being for example diametrically opposed and/or facing.
- the motor 41 is preferably an electric motor.
- the motor 41 comprises a hollow solenoid 51 at its interior, having an opening 53 at one of the ends 55 thereof.
- the motor 41 comprises a single solenoid 51.
- a slider 57 is slidably housed; such slider 57 is made of a ferromagnetic material, e.g. ferromagnetic metal.
- Said slider 57 is generally housed in an internal cavity 61 of the solenoid 51, said solenoid 51 and slider 57 being coaxial.
- the slider 57 When the solenoid 51 is supplied with electrical power, the slider 57 is moved along the aforesaid axis X, being adapted to at least partially project from the opening 53.
- the movement of the slider 57 along the axis X is determined by the generation of a magnetic field by the solenoid 51, allowing the passage of said slider 57 through the opening 53.
- the transmission member 39 is connected to the slider 57 in order to be moved. Said transmission member 39 can be alternately switched between a first configuration in which the trolley 31 is movable from the first to the second position, and a second configuration in which the trolley 31 is movable from the second to the first position.
- Said transmission member 39 comprises a tubular support portion 59 arranged vertically, usually having cylindrical form and in this manner adapted to slidably house the slider 57.
- the solenoid 51 is wound on the outside of the tubular portion 59 and has turns in contact with the air in order to dissipate the heat developed during the activation of said solenoid 51.
- the transmission member 39 comprises a slidably movable pusher 63 associated inside the tubular portion 59.
- a first base 67 of the pusher 63 lies in abutment against the slider 57.
- said pusher 63 is thrust upward when the motor 41 is activated, and falls downward due to gravity when said motor 41 is deactivated.
- the slider 57 and the pusher 63 can be rigidly connected together or they can be obtained in one piece.
- Said pusher 63 at a second base 69 has a thrust element 71.
- Such thrust element 71 consists of a projection capable of engaging the contrast element 45 in order to move the trolley 31 from the first to the second position, or vice versa.
- said thrust element 71 is a projection that projects from the second base 69 in a direction defined by the axis X.
- the thrust element 71 can have a substantially triangular or trapezoidal form. If said thrust element 71 has a substantially trapezoidal form, e.g. a rectangular trapezoid ( Fig. 7 ), one side of said trapezoid identifiable with the height of the trapezoid itself lies on the second base 69 ( Fig. 7a and 7c ).
- the thrust element 71 having substantially trapezoidal conformation, has a greater base h2 and a smaller base h1. Said thrust element 71 also has an oblique portion 83 placed at the top of the aforesaid projection.
- the pusher 63 can be moved in the direction C moving closer to the trolley 31 and in a direction D moving away from the trolley 31, and the oblique portion 83 engages the contrast element 45 determining the movement of said trolley 31 between the first position and the second position.
- the oblique portion 83 being rotatably movable, alternately assumes two opposite angular positions ( Fig. 7a and 7c ). Said angular positions respectively define the first and the second configuration of the transmission member 39.
- the pusher 63 at a substantially intermediate portion 73 thereof, has at least one radial projection 77.
- the pusher 63 has two diametrically opposed radial projections 77.
- a cavity ( Fig. 6 and 7 ) is obtained defining a guide 81 ( Fig. 9 ); inside such guide 81, the radial projections 77 are slidably housed.
- the guide 81 has a zigzag annular conformation comprising an upper profile 74 and a lower profile 76.
- the upper profile 74 has maximum points 74' and minimum points 74" alternated with each other.
- the lower profile 76 has maximum points 76' and minimum points 76" alternated with each other.
- Said guide 81 during the sliding of the pusher 63 along the axis X, causes the rotation of said pusher 63 around the axis X and the sliding of the radial projections 77 inside the guide 81.
- the maximum points 74' of the upper profile 74 are placed in an advanced position with respect to the maximum points 76' of the lower profile 76, with reference to the rotation direction of the pusher 63 around the axis X indicated by the arrow L ( Fig. 8a and 8b ).
- the minimum points 76" of the lower profile 76 are placed in an advanced position with respect to the minimum points 74" of the upper profile 74.
- the pusher 63 is thrust upward and the radial projections 77 follow an ascending section of the guide 81 until the maximum point 74' of the upper profile 47 is reached. In other words, the radial projections 77 rise upward along the portion 78.
- the pusher 63 falls due to gravity and the radial projections 77 fall on a descending section of the guide 81 until the minimum point 76" of the lower profile 76 is reached. In other words, the radial projections 77 fall along the portion 80.
- the pusher 63 rotates each time 180°, alternately determining said first and second configuration of the transmission member 39.
- connection element 85 ( Fig. 4 and 5 ).
- the train can travel along the switch in directions A' and B' having direction opposite the directions A and B.
- the points 7 in order to prevent the derailing of the train, the points 7 must be rotated, allowing the free passage of the train according to the directions A' or B'.
- connection element 85 is elastically deformable.
- connection element 85 is a helical spring having a high number of turns. Said spring is for example made with a steel wire.
- the connection element 85 can be transversely deformed, allowing a partial rotation of the points 7 and a partial movement of the movable tie 17. During the partial rotation of the points 7 and the movement of the movable tie 17, the position of the trolley 31 remains unchanged.
- connection element 85 can thus bring the point contacts 15 back into an original position.
- connection element 85 in the form of a spring allows considerably reducing the longitudinal dimension of the connection element 85; hence, connection elements 85 can be obtained having more realistic proportions.
- the reduction of the longitudinal dimension of the connection element 85 allows obtaining a device 1 having reduced size and more realistic proportions with respect to the switch 2.
- said device 1 has parking means 90 functionally interposed between the support body 25 and the trolley 31.
- the parking means 90 comprise an elastically deformable element 87 associated with the support body 25.
- the parking means 90 comprise a projection 91 obtained on the trolley 31 and being engaged with the elastically deformable element 87 in a manner so as to lock trolley 31 in the first or in the second position.
- the elastically deformable element 87 can have an elongated form and be constrained at two ends 89, e.g. in proximity to the portions 34 ( Fig. 6 ).
- said elastically deformable element 87 is, for example, a helical spring with a high number of turns.
- Said spring is made for example with a steel wire.
- the projection comprises a rotatable element 91 constrained to the trolley 31, e.g. by means of a rotation pin 93 on which said rotatable element 91 can rotate.
- the locking element 87 constantly engages the rotatable element 91, such locking element 87 remaining deformed in the transverse direction thereof, although minimally.
- the rotatable element 91 When the trolley 31 is moved by the action of the thrust element 71, the rotatable element 91 is forced against the locking element 87, causing further transverse deformation thereof, to a greater extent than that indicated above.
- the deformation of the locking element 87 allows the rotatable element 91 to pass, for example, below said locking element 87 allowing the movement of the trolley 31 between the first position and the second position.
- Electrical contacts 95 are present at a portion of the support body 25 placed in proximity to the seat 29. Such contacts 95 are electrically isolated from each other, and when connected with each other they allow sending an electrical signal. Such electrical signal allows, for example, activating a control traffic light for the switch 2 and/or supplying electrical power to a railroad crossing and/or supplying electrical power to a traffic light of the aforesaid railroad crossing and/or polarizing a so-called neutral portion of the switch etc.
- the trolley 31 has, in proximity to the aforesaid electrical contacts 95, a portion 97 adapted to connect together at least two electrical contacts 95.
- Said portion 97 has, for example, a coating (not shown in the figures) made of a conductive material.
- Such projection 97 during the movement of the trolley 31 between the first and the second position, connects together suitable electrical contacts 95, sending at least one said electrical signal.
- the invention thus described attains the proposed object, since it describes a device for actuating a switch for a model railroad comprising a single motor that, when it is activated or deactivated, allows alternately switching a transmission member from a first to a second configuration.
- the motor thus allows obtaining a device for actuating a model railroad switch having realistic proportions, with respect to the switch to which it is associable, said motor also being adapted to be vertically arranged with respect to said switch.
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Description
- A device for actuating a switch for a model railroad forms an object of the present finding.
- The switch, which in technical jargon is usually termed turnover, is adapted to deviate the travel of a train from one track to another.
- The switch usually has fixed components, such as external rails, and movable components such as internal rails adapted to deviate the travel of the train.
- The internal rails are commonly called points.
- The points have a first end, commonly called heel, rotatably constrained to a fixed tie by means of first pins.
- A second end of the points, commonly called point contact, is rotatably constrained to a tie movable by means of second pins. Said movable tie constrains the two point contacts of the points at a slightly lower distance than the internal distance between the two rails that constitute a main track.
- Said movable tie can be moved in a direction transverse to the points. Such movable tie allows the movement of the point contact of the points and the simultaneous rotation of the points themselves.
- The rotation of the points allows placing the point contact of one of the two points in contact with the respective rail, facilitating the passage of the train and preventing the derailing thereof.
- In order to move the movable tie, a point movement device is placed in proximity to the main track.
- Said point movement device usually comprises a motor capable of moving the movable tie, causing the rotation of the points and thus the deviation of the train travel.
- Said motors are usually electric motors, comprising a pair of solenoids arranged axially and adapted to move a slider along an axis defined by the conformation of said solenoids. Such solenoids are generally facing and substantially parallel to the main track or to the points.
- The two solenoids respectively allow moving said slider in a direction defined by the conformation of said solenoids and in the opposite direction. Said solenoids can be supplied with electrical power, for example by means of a push-button panel that allows alternately deviating the electric current to one of the two solenoids. The solenoids can also be power supplied by means of suitable digital installations operating via two channels respectively connected to the solenoids.
- The slider is associated with a metallic rod which, being in turn associated with a guide having a particular conformation, allows moving the movable tie and hence rotating the points.
- The movement of the movable tie and the simultaneous rotation of the points allow the passage of the train on the main track or alternatively allow deviating the travel of the train from the main track to a secondary or diverged track.
- In order to allow the passage of the train in an opposite direction, it is necessary that the point in contact with the respective rail can be spaced from the latter, allowing the passage of the wheels of the train and preventing the derailment thereof. For such purpose, the metallic rod, being connected to the points, can be bent, allowing the rotation of said points and the passage of the train in the above-described direction.
- After the aforesaid wheels have passed beyond the point contact of the point, the point itself will return in contact with the rail.
-
US patents 6,491,263 andUS 3,379,873 are also known; both describe a device for actuating a switch for a model railroad. - The abovementioned solutions nevertheless have various drawbacks tied to a bulky presence of the solenoids.
- A further drawback of the abovementioned solutions derives from the presence of the rod and/or of the device for moving the points having large bulk, such to not make the switch realistic, in particular making it disproportionate and hard to manage in complex switches.
- In order to overcome such drawbacks, according to a second embodiment of the device for actuating a model railroad switch, switches have been obtained in which the device for actuating a model railroad switch is housed in a cavity obtained on a plastic body, on which the switch is placed.
- Even this alternative solution has drawbacks linked to a difficult, troublesome shape of the plastic body, as well as to the unchanged size of the device for moving the points and the size of the rod.
- Object of the present invention is to obtain a device for actuating a switch for a model railroad that is adapted to solve the abovementioned problems.
- These and other objects, which will be clearer to the man skilled in the art, are achieved by a device for actuating a switch for a model railroad obtained in accordance with the enclosed claims.
- For a greater comprehension of the present finding, the following drawings are enclosed for purely exemplifying, non-limiting purposes:
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figure 1 shows a top view of a device for actuating a switch for a model railroad according to the present invention, applied to a model railroad switch; -
figure 2 shows a top view of a first detail of the device offigure 1 ; -
figure 3 shows a side view of the detail shown infigure 2 ; -
figure 4 shows a top view of a second detail offigure 1 ; -
figure 5 shows a side view of the detail offigure 4 ; -
figure 6 shows a partially exploded side view of the device offigure 1 ; -
figures 7a-7d show side views of different configurations of a detail offigure 6 ; -
figures 8a-8d show top views of the views offigure 7 ; -
figure 9 shows a schematic view of a detail offigure 6 ; -
figures 10 and 11 show top views of various configurations of the device and the switch offigure 1 . - With reference to the abovementioned figures, a device for actuating a
switch 2 for a model railroad is indicated with thereference number 1. Saidswitch 2 is a mechanism adapted to deviate the path of a train (not shown in the figures) from a main track (not indicated in the figures) to a diverged or secondary track (not indicated in the figures), in accordance with the direction of the arrow B (Fig. 1 ). - The
switch 2 usually has fixed components, such asexternal rails 3 and 3' constrained to fixed ties 5, and movable components, such asinternal rails 7 adapted to deviate the travel of the train. - The
internal rails 7 are commonly called points. - The
points 7 have afirst end 9, commonly termed heel, rotatably constrained to one of the aforesaid fixed ties 5 by means offirst pins 11. Saidfirst pins 11 allow the rotation of thepoints 7 on an imaginary horizontal plane, on which theaforesaid rails 3 and 3' are placed. Thefirst pins 11 are positioned in proximity toends 13 of the external rails 3', in order to allow the easy passage of the train from the rails 3' to thepoints 7, and vice versa. - A
second end 15 of thepoints 7, commonly called point contact, is rotatably constrained to amovable tie 17 by means ofsecond pins 19. Analogous to thefirst pins 11, also thesecond pins 19 allow the rotation of thepoints 7 on the imaginary horizontal plane on which for example therails 3 are placed. - The
movable tie 17 can be moved in a substantially transverse direction Z with respect to therails 3 and thepoints 7. - When the train moves, e.g. in a direction defined by one of the arrows A or B, the rotation of the
points 7 around thepins 11 allows deviating the travel of the train from the main track to the secondary or diverged track, or vice versa. - For such purpose, the
movable tie 17 can place one of thepoint contacts 15 in contact with therespective rail 3. - The
point contacts 15 are spaced from each other by a distance that is less than the distance present between therails 3, the latter distance being measured at aportion 21 of the main track. In such a manner, when afirst point contact 16 is in contact with a respectivefirst rail 18, a second point contact 16' is spaced from a respective second rail 18'. The distance present between the second point contact 16' and the respective second rail 18' allows the easy passage of a wheel (not shown in the figures) of the train on said second rail 18', preventing said rail from derailing following the impact with the second point contact 16'. - The
movable tie 17 and thepoints 7 connected thereto are moved by means of thedevice 1, connected to saidpoints 7 by means of the aforesaidmovable tie 17. - Said
device 1 is usually laterally constrained to the main track, and preferably at thepoint contacts 15. - The
device 1 comprises a support body 25 (Fig. 2 ) constrainable to theswitch 2, in particular to theties 15, by means of normal constraining means (not shown in the figures), e.g. screws or nails, viasuitable holes 27. - Advantageously, said
support body 25 can have a closure element (not shown in the figures) constrained above thesupport body 25 itself. Such closure elements allows protecting thedevice 25, for example from possible weathering agents or dust, in order to assure a correct functioning of thedevice 25 itself, simultaneously allowing the disassembly thereof in order to carry out normal maintenance operations. Said closure element is also realistically shaped and/or colored. - A
trolley 31 is slidably associated with thesupport body 25. Saidtrolley 31 can slide along a direction Y (Fig. 2 ), that is for example transverse with respect to thepoints 7 in order to move them. Simultaneously, thetrolley 31 can be constrained in aseat 29, e.g. by means ofportions 34 of the support body 25 (Fig. 3 ). - Said
seat 29, atend portions 33, can have means 37 for locking thetrolley 31. Said locking means 37 allow the abutment of thetrolley 31 in a first and second position, preventing saidtrolley 31 from exiting from theseat 29 and preventing thepoint contacts 15 from being excessively forced against therails 3. - The
trolley 31 can be moved from the first to the second position, and vice versa, by means of amotor 41; atransmission member 39 is operatively interposed between thetrolley 31 and themotor 41, and is adapted to transfer a sliding motion from saidmotor 41 to saidtrolley 31. - The
support body 25 has, for example, a through hole 42 (Fig. 2 ) with circular or polygonal form, inside of which thetransmission member 39 can be housed, in particular anend portion 38 thereof. In order to house thetransmission member 39 with greater ease and safety, thehole 42 has an extension 47 (Fig. 3 and6 ) adapted to increase the contact surface between thesupport body 25 and saidtransmission member 39. - For such purpose, the external conformation of the
end portion 38 and the internal conformation of thehole 42 and/or of theextension 47 are complementary to each other. - At said
hole 42, thetrolley 31 has anengagement portion 32 that interacts with thetransmission member 39 for moving thetrolley 31. - The
trolley 31 has a hole or a cavity 43 (Fig. 4 ) in a manner such that, at least during the sliding of thetrolley 31, thehole 42 and the hole orcavity 43 can be at least partly superimposed and/or facing. - Inside said hole or
cavity 43, there is acontrast element 45 rigidly connected to thetrolley 31 and engageable by saidtransmission member 39. - Said
contrast element 45 can be an element with elongated form, e.g. a wire or the like, that joins twointernal portions 49 of the cavity or of thehole 43, saidinternal portions 49 being for example diametrically opposed and/or facing. - The
motor 41 is preferably an electric motor. Preferably, themotor 41 comprises ahollow solenoid 51 at its interior, having anopening 53 at one of theends 55 thereof. - In accordance with the present invention the
motor 41 comprises asingle solenoid 51. - Inside the
solenoid 51, aslider 57 is slidably housed;such slider 57 is made of a ferromagnetic material, e.g. ferromagnetic metal. - Said
slider 57 is generally housed in aninternal cavity 61 of thesolenoid 51, saidsolenoid 51 andslider 57 being coaxial. - When the
solenoid 51 is supplied with electrical power, theslider 57 is moved along the aforesaid axis X, being adapted to at least partially project from theopening 53. - The movement of the
slider 57 along the axis X is determined by the generation of a magnetic field by thesolenoid 51, allowing the passage of saidslider 57 through theopening 53. - The
transmission member 39 is connected to theslider 57 in order to be moved. Saidtransmission member 39 can be alternately switched between a first configuration in which thetrolley 31 is movable from the first to the second position, and a second configuration in which thetrolley 31 is movable from the second to the first position. - Said
transmission member 39 comprises atubular support portion 59 arranged vertically, usually having cylindrical form and in this manner adapted to slidably house theslider 57. Thesolenoid 51 is wound on the outside of thetubular portion 59 and has turns in contact with the air in order to dissipate the heat developed during the activation of saidsolenoid 51. - The
transmission member 39 comprises a slidablymovable pusher 63 associated inside thetubular portion 59. - In the described embodiment, a
first base 67 of thepusher 63 lies in abutment against theslider 57. In detail, saidpusher 63 is thrust upward when themotor 41 is activated, and falls downward due to gravity when saidmotor 41 is deactivated. - According to an alternative embodiment, the
slider 57 and thepusher 63 can be rigidly connected together or they can be obtained in one piece. - Said
pusher 63 at asecond base 69 has athrust element 71.Such thrust element 71 consists of a projection capable of engaging thecontrast element 45 in order to move thetrolley 31 from the first to the second position, or vice versa. - In the described embodiment, said thrust
element 71 is a projection that projects from thesecond base 69 in a direction defined by the axis X. - For such purpose, the
thrust element 71 can have a substantially triangular or trapezoidal form. If saidthrust element 71 has a substantially trapezoidal form, e.g. a rectangular trapezoid (Fig. 7 ), one side of said trapezoid identifiable with the height of the trapezoid itself lies on the second base 69 (Fig. 7a and 7c ). - The
thrust element 71, having substantially trapezoidal conformation, has a greater base h2 and a smaller base h1. Said thrustelement 71 also has anoblique portion 83 placed at the top of the aforesaid projection. - During the sliding motion of the
pusher 63, thepusher 63 can be moved in the direction C moving closer to thetrolley 31 and in a direction D moving away from thetrolley 31, and theoblique portion 83 engages thecontrast element 45 determining the movement of saidtrolley 31 between the first position and the second position. - During the sliding of the
pusher 63, theoblique portion 83, being rotatably movable, alternately assumes two opposite angular positions (Fig. 7a and 7c ). Said angular positions respectively define the first and the second configuration of thetransmission member 39. - The
pusher 63, at a substantiallyintermediate portion 73 thereof, has at least oneradial projection 77. In the described embodiment, thepusher 63 has two diametrically opposedradial projections 77. - Inside the
tubular portion 59, a cavity (Fig. 6 and7 ) is obtained defining a guide 81 (Fig. 9 ); insidesuch guide 81, theradial projections 77 are slidably housed. Theguide 81 has a zigzag annular conformation comprising an upper profile 74 and alower profile 76. The upper profile 74 has maximum points 74' and minimum points 74" alternated with each other. Thelower profile 76 has maximum points 76' andminimum points 76" alternated with each other. Saidguide 81, during the sliding of thepusher 63 along the axis X, causes the rotation of saidpusher 63 around the axis X and the sliding of theradial projections 77 inside theguide 81. - The maximum points 74' of the upper profile 74 are placed in an advanced position with respect to the maximum points 76' of the
lower profile 76, with reference to the rotation direction of thepusher 63 around the axis X indicated by the arrow L (Fig. 8a and 8b ). - The minimum points 76" of the
lower profile 76 are placed in an advanced position with respect to the minimum points 74" of the upper profile 74. - During the activation of the
motor 41, thepusher 63 is thrust upward and theradial projections 77 follow an ascending section of theguide 81 until the maximum point 74' of theupper profile 47 is reached. In other words, theradial projections 77 rise upward along theportion 78. - Upon deactivation of the
motor 41, thepusher 63 falls due to gravity and theradial projections 77 fall on a descending section of theguide 81 until theminimum point 76" of thelower profile 76 is reached. In other words, theradial projections 77 fall along theportion 80. - In particular, the above-described sliding in the directions C and D (
Fig. 7a-7d ) allows an overall rotation of 180°, defined by two single rotations of 90° (Fig. 8a-8d ). - In other words, following the activation and subsequent deactivation of the
motor 41, thepusher 63 rotates each time 180°, alternately determining said first and second configuration of thetransmission member 39. - In order to allow the movement of the
movable tie 17 along the axis Z, the aforesaidmovable tie 17 and thetrolley 31 are connected with each other, in particular by means of a connection element 85 (Fig. 4 and 5 ). When thetrolley 31 is moved, for example from the first to the second position, theconnection element 85 allows the integral movement of themovable tie 17, integrally constrained with thetrolley 31. - Alternatively, the train can travel along the switch in directions A' and B' having direction opposite the directions A and B.
- In such case, in order to prevent the derailing of the train, the
points 7 must be rotated, allowing the free passage of the train according to the directions A' or B'. - Advantageously, in order to prevent the movement of the
points 7 during the passage of the train in the direction A' or B', theconnection element 85 is elastically deformable. For example,such connection element 85 is a helical spring having a high number of turns. Said spring is for example made with a steel wire. In such case, if for example a train travels along theswitch 2 in the direction A' and the position of thepoints 7 only allows the passage of the train in the direction B', theconnection element 85 can be transversely deformed, allowing a partial rotation of thepoints 7 and a partial movement of themovable tie 17. During the partial rotation of thepoints 7 and the movement of themovable tie 17, the position of thetrolley 31 remains unchanged. - Once the wheels have traveled beyond the point contacts 15 (freeing them), there is no longer any thrust of the train wheel against said
point contacts 15 of thepoints 7; theconnection element 85 can thus bring thepoint contacts 15 back into an original position. - The use of
such connection element 85 in the form of a spring allows considerably reducing the longitudinal dimension of theconnection element 85; hence,connection elements 85 can be obtained having more realistic proportions. In addition, the reduction of the longitudinal dimension of theconnection element 85 allows obtaining adevice 1 having reduced size and more realistic proportions with respect to theswitch 2. - Advantageously, in order to maintain the
trolley 31 stopped in the first position (Fig. 10 ) or in the second position (Fig. 11 ), saiddevice 1 has parking means 90 functionally interposed between thesupport body 25 and thetrolley 31. - For such purpose, the parking means 90 comprise an elastically
deformable element 87 associated with thesupport body 25. In addition, the parking means 90 comprise aprojection 91 obtained on thetrolley 31 and being engaged with the elasticallydeformable element 87 in a manner so as to locktrolley 31 in the first or in the second position. - According to a preferred embodiment, the elastically
deformable element 87 can have an elongated form and be constrained at two ends 89, e.g. in proximity to the portions 34 (Fig. 6 ). - Advantageously said elastically
deformable element 87 is, for example, a helical spring with a high number of turns. Said spring is made for example with a steel wire. - The projection comprises a
rotatable element 91 constrained to thetrolley 31, e.g. by means of arotation pin 93 on which saidrotatable element 91 can rotate. - During the sliding of the
trolley 31 between the first and the second position, the lockingelement 87 constantly engages therotatable element 91,such locking element 87 remaining deformed in the transverse direction thereof, although minimally. - When the
trolley 31 is moved by the action of thethrust element 71, therotatable element 91 is forced against the lockingelement 87, causing further transverse deformation thereof, to a greater extent than that indicated above. The deformation of the lockingelement 87 allows therotatable element 91 to pass, for example, below said lockingelement 87 allowing the movement of thetrolley 31 between the first position and the second position. - Electrical contacts 95 are present at a portion of the
support body 25 placed in proximity to theseat 29. Such contacts 95 are electrically isolated from each other, and when connected with each other they allow sending an electrical signal. Such electrical signal allows, for example, activating a control traffic light for theswitch 2 and/or supplying electrical power to a railroad crossing and/or supplying electrical power to a traffic light of the aforesaid railroad crossing and/or polarizing a so-called neutral portion of the switch etc. - In order to connect together two electrical contacts 95 and send the electrical signal, the
trolley 31 has, in proximity to the aforesaid electrical contacts 95, aportion 97 adapted to connect together at least two electrical contacts 95. Saidportion 97 has, for example, a coating (not shown in the figures) made of a conductive material.Such projection 97, during the movement of thetrolley 31 between the first and the second position, connects together suitable electrical contacts 95, sending at least one said electrical signal. - The invention thus described attains the proposed object, since it describes a device for actuating a switch for a model railroad comprising a single motor that, when it is activated or deactivated, allows alternately switching a transmission member from a first to a second configuration. The motor thus allows obtaining a device for actuating a model railroad switch having realistic proportions, with respect to the switch to which it is associable, said motor also being adapted to be vertically arranged with respect to said switch.
Claims (12)
- Device (1) for actuating a switch (2) for a model railroad, comprising:- a support body (25) constrainable to a switch (2) for a model railroad;- a trolley (31) slidably associated with said support body (25) and movable between a first and a second position along a direction substantially transverse to points (7) of said switch (2); said trolley (31) being constrainable to said points (7);- a motor (41) associated with said trolley (31);- a transmission member (39) operatively placed between said motor (41) and said trolley (31) for transferring at least one sliding motion from said motor (41) to said trolley (31); said transmission member (39) being alternately switchable between a first configuration in which the trolley (31) is movable from the first to the second position and a second configuration in which the trolley (31) is movable from the second to the first position, characterized in that said transmission member (39) comprises a pusher (63) connected to the motor (41) and linearly movable, said pusher (63) having an oblique portion (83) that can move closer to and/or move away from the trolley (31) in order to move the trolley (31) between the first position and the second position; said oblique portion (83) being rotatably movable between two opposite angular positions respectively defining the first and the second configuration of the transmission member (39).
- Device according to claim 1, wherein said oblique portion (83) abuts against said trolley (31), engaging it at an engagement portion (32), moving said trolley (31) from the first position to the second position, or vice versa.
- Device according to claim 1, wherein said transmission member (39) comprises a tubular support portion (59), said pusher (63) comprising at least one radial projection (77) slidably housed in a guide (81) obtained inside said tubular portion (59) in a manner such that said pusher (63), by linearly sliding inside said tubular portion (59), is rotatable in a rotation direction perpendicular to a direction defined by said linear sliding.
- Device according to claim 3, wherein said guide (81) has a zigzag annular conformation.
- Device according to claim 3, wherein said guide (81) comprises an upper profile (78) and a lower profile (80) having zigzag form, said profiles allowing the rotation of the pusher (63) around the axis X.
- Device according to any one of the preceding claims, wherein said motor (41) comprises a solenoid and a slider (57) made of a ferromagnetic material, said slider (57) slidably housing in said solenoid.
- Device according to any one of the preceding claims, wherein said device (1) has parking means (90) functionally interposed between said support body (25) and said trolley (31) in order to lock said trolley (31) in the first and in the second position.
- Device according to claim 7, wherein said parking means (90) comprise a projection (91) constrained to said trolley (31) and an elastically deformable element (87) constrained to said support body (25), said elastically deformable element (87) engaging said projection (91) in order to lock the trolley (31) in the first position or in the second position.
- Device according to claim 8, wherein said elastically deformable element (87) has a helical spring conformation.
- Device according to claims 8 or 9, wherein said projection (91) comprises a rotatable element constrained to said trolley (31).
- Device according to claim 1, wherein said trolley (31) is connectable to the points (7) by means of a connection element (85) having a helical spring conformation.
- Switch (2) for a model railroad, comprising a device (1) for actuating said model railroad switch (2) according to any one of the preceding claims.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000870A ITMI20120870A1 (en) | 2012-05-21 | 2012-05-21 | DEVICE FOR THE IMPLEMENTATION OF AN EXCHANGE FOR RAILWAY MODEL |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2666529A1 EP2666529A1 (en) | 2013-11-27 |
EP2666529B1 true EP2666529B1 (en) | 2014-12-03 |
Family
ID=46397434
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20130168258 Active EP2666529B1 (en) | 2012-05-21 | 2013-05-17 | Device for actuating a switch for a model railroad |
Country Status (2)
Country | Link |
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EP (1) | EP2666529B1 (en) |
IT (1) | ITMI20120870A1 (en) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3379873A (en) * | 1964-11-13 | 1968-04-23 | Casadio Pietro | Electro-magnetically actuated switch for toys for ming electrical trains |
US3700889A (en) * | 1971-07-29 | 1972-10-24 | Clarence K Edwards | Model railway switch assembly |
US4355776A (en) * | 1980-10-02 | 1982-10-26 | Rydin Carl N | Toy railroad track switch arrangement |
US6491263B1 (en) * | 2000-07-11 | 2002-12-10 | Mike's Train House, Inc. | Power supply unit and rail switching mechanism for model track layouts |
DE20314897U1 (en) * | 2003-09-24 | 2004-01-15 | Hoffmann, Peter | Electrical motor actuated model rail track points switching system has rotary gear train that is coupled to a gear rack operating the points |
-
2012
- 2012-05-21 IT IT000870A patent/ITMI20120870A1/en unknown
-
2013
- 2013-05-17 EP EP20130168258 patent/EP2666529B1/en active Active
Also Published As
Publication number | Publication date |
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ITMI20120870A1 (en) | 2013-11-22 |
EP2666529A1 (en) | 2013-11-27 |
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