DE1940333A1 - Turntable for play and model railway systems - Google Patents

Description

Patent attorney.

Dr H. Cplienbyidi

β5ΰ1 silence Nürrtfeere

. τ ίοΓί 57 55 45

P 2129/50

Max Ernst, 85 Nuremberg's Lohengrinstrasse 14

Revolving stage for play and model railway systems

The present invention relates to a revolving platform for Play and model railway systems and in particular the drive of the bridge body of such a revolving platform.

It is known to drive the bridge of revolving platforms for play and model railroad layouts with the help of one provided in the bridge Make the electric motor, which is via a reduction gear via a ring gear provided in the bearing body of the bridge Makes bridge adjustment. To do this, the bridge in each case To stop positions in which it is exactly in line with the intended rail connections, are at the edge of the Ijagerkörpers pegs and at the bridge one engaging in these pegs slidable locking pin provided. It is also known with the engagement of the locking pin in one of the aforementioned Resting to interrupt the circuit to the electric motor and at the same time to apply a brake, v / elche the motor and that brakes coupled gears when the bridge is stopped. It is also necessary to have one in the gearbox Provide friction clutch to prevent jamming of the same in the prevent the bridge from coming to a sudden stop. If the bridge is to be adjusted, the locking pin must be replaced by a Electromagnet are brought into a reset position.

009841/0094

BIe Is-alfeaiiritea 3> £ eliljiJJmea. the one such by one. Elektrosaga «t have" battery-operated bast pen, are in their her- "^; position relatively complex and not reliable in its operation. "■■■" ■

The invention also relates to a revolving platform for Play and model railway systems, in which an electric motor stored in the bridge is used to drive the bridge with one? Coupling provided reduction gear and one the gear rim provided in the body of the turntable Adjustment of the bridge makes.

According to irfiMiing, it is proposed to provide a cam track on the shaft of the gear wheel engaging the ring gear of the bearing body, which is provided with at least one locking notch, the distance from one locking position to the next being equal to the angular distance between two G-rail connections and on the KuEven track the latching cam of a spring loaded th switching element rests and with this switching element a holding contact is connected _s by which the drive motor is kept under tension when the drive gear is rotated and is switched off again when the latching cam engages the notch of the cam track.

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Another feature of the invention is proposed to provide a weight arrangement on the motor shaft, through which the existing drive connection between the motor and drive gear is switched on when the motor is switched on and is disengaged when the engine is switched off. '

Subject a further special feature of the invention has the Motor shaft on a worm, which is connected to a Schneekenrad of the ! Drive engages, devices being provided to move the worm wheel into the Engage the worm and, when the engine speed drops, from the Uncouple the worm.

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A particularly simple design of the I & stppXussg results in oil furnace "if the bearing adjacent to the worm wheel on the worm subsequent intermediate drive by means of a spring-loaded ^ Lever holds the worm wheel in the uncoupling position and through. brought the flyweight assembly into the engaged position will. Bas used to fix the drive gear, with a Latching cam provided switching element should preferably consist of a dureb. a powerful spring-loaded lever consists of "a latching" Pin is attached, which rests on the cam track connected to the drive gear or at the end of a switching movement falls into the notch. >

It has proven to be useful to use this lever to connect relatively long contact spring, so that the Switching the drive motor on and off over a large adjustment range he follows. A second contact can also be made with this lever connected, which is switched on at the same time as the motor contact and which serves to report back the adjustment step of the system to an operating device.

The invention is particularly characterized by its great simplicity and operational safety. It also offers the option of setting the bridge up with the help of a gate dialing device to carry out a preselected track connection completely automatically.

Further features and advantages of the invention emerge from the following description of an exemplary embodiment and from the claims. The figures show:

Fig. 1 is a schematic view of part of a turntable bridge with the propulsion system proposed according to the invention Locking device,

FIG. 1a provided on the shift lever in FIG. 1 the spring contacts in a Seitenansicht- _s ■

FIG. 2 is a detailed view of that shown in FIG Part of a turntable bridge with the lower one open

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Cover and omitted intermediate gears in a view from below,
2a shows the centrifugal weight arrangement connected to the motor shaft in a schematic view,

Fig. 3 shows the in Pig. 2 part of the turntable shown in a Side view with the corresponding rope of the bearing body for the bridge in section, Pig. 4 shows a perspective view of the drive wheel or drive provided with the locking curve,

Pig. 5 shows a section from the middle part of the bearing body "With the power supply lines seen from below and Pig. 6 shows the same section from the middle part of the bearing body seen from above.

In the Piguren, j No. 1 shows in detail the plate-shaped bearing body of the turntable, made in one piece from plastic, which is provided with a step on its edge, on which there is a rail 2 which is also molded on for external bearing of the bridge. The lower, cylindrical surface of this step is filled almost in its entire height by a toothed ring 3 which is also molded on. Which essentially consists of an injection molded body? _The existing bridge body 4 has a screw-on base plate 5 which has a pin 6 in the middle of the bridge, which is provided with a notch 7 at the end. The pin 6 protrudes downward through a round opening 6 'over the underside of the bearing body 1 and is fixed by a spring plate 8 that can be pushed onto the bottom of the bearing body 1 (FIG. 5). On the underside of the bridge, near its two ends, bearings 9 which are co-molded on the bridge body 4 are provided, in which rollers 10 are rotatably mounted, which roll on the rail 2. At both ends of the bridge body 4 insulating pieces 11 are provided, to which molded pieces 14 made of spring steel sheet are fastened by means of a screw 12 and a pin 13. These fittings are provided with angled resilient tongues 15, which are not shown in detail

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009841/0094

BATH ORIGINAL

for power connection with power supply lines or track connections ii to serve. Each bending piece 14 is provided with two further tongues 15 * provided - which on. conductive with the two rails 16 of the bridge connected contacts not visible in the figures rest. At 17, the control house is referred to, in which a small Bulb can be accommodated. One on the revolving stage Track connection segment 18 is shown in Figure 3 in a side view recognizable.

For mounting the entire drive mechanism, on the one hand, an inserted into the bridge body 4 and held in it is used Metal plate 19. Pillars 20 are attached to this plate 19, to which the aforementioned base plate is releasably attached by means of screws 21. The drive motor 22 is between at the Plate 19 or plate 5 provided, angled lobes supported, of which in Figure'2 only the one on the plate 19 provided tabs 23 and 24 are visible. The motor 22 has two power supply lines which are provided with ferrite cores 25 small coils 26 are led to an insulating body 27 in which there are two spring-loaded contact pins 28, 29. Between the leads connected to the contact pins 28, 29 A capacitor 30 is connected to the electric motor, which, together with the coils 26, serves to suppress interference in the motor 22. The insulator 27 also has a further contact pin 31 loaded with leather, the connecting line of which, as will be explained later is explained, for the feedback of the Yerstellbewegung carried out serves.

The three resilient contact pins 28, 29 and 31 each grind one of the three contact tracks 32, 33 and 34 »the one in the vicinity of the hole 6 ″ at the bottom of the bearing body 1 are tapped (Figures 5 and 6). With these contact tracks 32, 33 and 34 are three isolated lines 35, 36 and 37 connected by soldering, which lead to a control unit, not shown. One

009841/0094

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Tioifte isolated © Isaitiing 38 is with its End® to the Federulech 8 fmg'S'lfcitöög ä & s iil} © r iea lapfen. 6 an extension to the "mass · ■■■"'des? represents lntriebsTorrichtimg. Das.Federblech 8 is guided between "insets 39 on the bottom of the bearing body 1. The angled · - tea pins 32% 33 ^% and 34 * of the contact tracks 32, 33 and 34 li-agCiii" Ιώ. Tssti @ fßsig @ a 40-des itager body 1 «-""■■""." ■■ "

The following components are provided to drive the bridge 4 by the electric motor 22; The ring gear adjacent 3 is between FIAA, - 'stored plastic is Erieb whose shaft is made of steel 41, and the ■ v with a gear 42 in the indoor' Hattea, 19 and 5 a, in particular of high-strength ■. '.' ersahnüng.3 of the üagerkörpers 1 engages. With this gear 42, larger Zaharaä eats 43 © instückig Tertunden, which engages in the teeth of a smaller gear 44, the shaft 45 of which has a larger gear 46 which again meshes with the ZiSimeß of a smaller gear 47. The gear 47 is arranged on the shaft 48 together with a worm wheel 49 which meshes with the worm 50 ^ on the motor shaft 51 during operation (FIG. 1). It can be seen from FIGS. 1 and 2 that a strong reduction is provided between the worm 50 on the motor shaft 51 and the gear 42 engaging in the ring gear 3.

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For coupling and uncoupling the motor 22 to this XT reduction gear serve the following facilities In the plate 19 is by means of a. Hollow rivet 52 is a two-armed lever 53, 54 mounted so that it can pivot, the left lever arm 53 of which has a slot 55 at the end, which forms an arcuate gap 56 overlaps in the plate 19. Between this slot 55 in the ^ Lever arm 53 and the gap 56 in the plate 19 is the dem Worm gear 49 mounted adjacent end of the shaft 48 and that normally so that the worm wheel 49 disengaged from the Screw 50 is (Fig. 2). This is achieved in that

009841/0094

g ₀

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the right lever arm 54 of the lever 53, 54 with © inesi around SO angled tabs 57 on the face of a flyweight arrangement connected to old eier Mot © and ', - in. the position shown in H by a? on the hook 58 on the plate 19 and on an eyelet 59 attached to the lever arm 54, slightly pretensioned tension spring 60 is held in this position. The second bearing of the shaft 48 is permanently provided in the base plate 5.

As Fig. 2a shows schematically, there is the flyweight arrangement from a housing 61 which can be slipped onto the motor shaft 51, in particular made of plastic, in which two flyweights 62, z. B. made of zinc spirits cast, when the shaft rotates outwards are provided, with a pin 63 coaxial with the motor shaft is close to the outside is adjusted. "With this pin 63 is at running engine is adjusted via the tab 57 of the lever 53, 54 against the train of the spring 60, so that, as shown in FIG is, the worm wheel 49 comes into engagement with the worm 50. When the motor is switched off, the motor armature is removed from the reduction gear uncoupled. This binding and uncoupling has to the meshing between the pinion 47 and the gear 46 is not adverse influence.

For the precise fixation of the position of the bridge to the rail connections the following facilities are also planned: In one piece with the gear 42 and the gear 43 is located on the same shaft 41 a cam track 64, which in the Ausführungsbeispie'l is designed mirror-symmetrically and has two locking notches 65 into which the pin 66 of a shift lever 67 engages and thus the gear 42 in an exactly fixed position. The shift lever 67 is around a pin mounted on the plate 19 so as to be pivotable. Between a hook a strong tension spring 71 under tension is attached to the plate 19 and a hook 70 on the switching lever 67, which holds the pin 66 against the cam track 64 and thus at

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009841/0094

Fall of the pin 66 in the notch 65, the gear 42 in his Holds rotational position to the bridge. As a result, the toothing of the gearwheel is also engaged with the least possible backlash 42 in the toothing of the ring gear 3, the bridge 4 in its position to the bearing body 1 held free of play.

Contact springs consisting of a one-piece sheet metal part are riveted to an angled tab 72 of the switch lever 67, with a slightly longer arm 73 coming into contact with the contact 74 provided on the motor when the switch lever 67 is pivoted and a slightly shorter contact arm 75 against it at the same time the fixed contact 76 attached to the insulating body 27 comes to rest. ■

It should also be mentioned that the number of teeth of the ring gear 3 and of the gear 42 must be chosen so that with half a revolution of the gear 42, the bridge 4 just by the distance two adjacent track connections is adjusted. In addition, it is necessary that when inserting the bridge into the bearing body, care must be taken that the in Pig. 2 shown latching position of the cam track 64, the gear 42 in the teeth of the ring gear 3 is used that the bridge is accurate with a Geleisan connection placed on the edge of the bearing body flees. It should also be mentioned that the said Motor contact 74 with pole 36 of the two power supply lines 35, 36 of the motor is electrically connected and with the contact spring 75 cooperating fixed contact 76 via the contact pin 31 and the contact path 34 with the feedback line 37 is electrically connected. .

The mode of operation of the proposed drive device is as follows: The voltage pole 35 is permanently connected to the lower one Motor contact connected and the voltage pole 36 leads to the upper motor contact and the mentioned contact 74, where he in

009841/0094

19-0333

the operating device, not shown, can optionally be connected to voltage. The pole 38 leads on the one hand to the mass of the bridge and on the other hand to the same voltage pole to which the pole can be selectively applied. Point 37 is the feedback line to the control unit. If the motor with any polarity now receives a DC voltage via the "two poles or lines 35, 36, so he starts moving, with the joint weight arrangement 61 to 63 providing the mechanical coupling between the Worm 50 and the worm wheel 49 produces. The pinion 42, 43 is thereby set in rotation, so that by the Cam track 64 of the shift lever 67 pivoted counterclockwise will. The contact 73 comes against the motor contact 74, so that now even if the line 36 is de-energized, the initiated TTreating movement is continued until the Crouch 66 has fallen into the other notch 65 of the cam track 64. This switches off the drive again, whereby the Worm wheel 49 disengages from worm 50. Simultaneously or a short period of time after the contact spring 73 has come against the motor contact 74, the contact spring 75 also comes against the contact arm 76 via the line 37 This provides a feedback of the adjustment movement that has been carried out. The feedback line 37 can be used to send a To control display device or with a suitable Yorwaheinrichtung the automatic adjustment of the bridge to one to monitor selected position.

The proposed according to the invention and described in principle in the above drive device also allows for very small lanes, for. B. for a 9 mm track to produce a space-saving and reliable turntable. For example, with a selected bridge diameter of 180 mm, the distance between two track connections can be reduced to about 12 mm, so that the revolving platform can have a maximum of 48 track connections on its circumference. A large number of lure scales can thus be connected to the proposed revolving platform. It is also possible _{9 to} bring a larger number of track connections to the revolving platform.

009841/0094 - ¹⁰ -

Claims (6)

Claimsϊ Revolving stage for play and fashion !! Railway systems, with an in the bridge-the turntable provided electric motor, the Via a reduction gear provided with a clutch drives a gear, which is in a, in the bearing body of the Turntable provided gear rim engages, and with the locking devices are provided, which fix the turntable bridge in alignment with the track connections, characterized in that that on the shaft of the in the ring gear (3) of the ^ iagerkörpers engaging gear (42) a Eurvenbahn (64) is provided, which with at least one notch (65) is provided, the distance from a locking position to closest corresponds to the angular distance between two track connections and on the Eurvenbahn (64) the Rästnoeken (66) a spring-loaded Switching element (67) rests and a holding contact (73) is connected to the switching element (67) through which at initiated rotary movement of the gearwheel (42) of the drive motor kept under tension and, when the locking cam (66) collapses, in the locking notch (65) of the cam track (64) is switched off. 2. Revolving stage for play and model railway systems according to claim 1, characterized in that a flyweight arrangement (61-63) is provided on the motor shaft, through which the The drive connection provided between the motor (22) and the gearwheel (42) is switched on when the motor is switched on and is disengaged when the motor is switched off. 3. turntable according to claim 2, characterized in that at a worm gear between the motor shaft and the following Reduction drive devices are provided to turn the worm wheel into the worm while the motor shaft is running. '' and disconnect it from the auger when the engine speed drops. 00984170094 - ti - 4 · Revolving stage according to claim. 3, characterized in that the flyweight arrangement (61-63) via one through one The spring (60) loaded the lever (53, 54) on the worm wheel (49) adjacent bearing of the Zw.Is.ehentriebe, g (4? - 49) in Adjusted clutch and uncoupling position. 5. turntable according to one of claims 1 to 4, characterized in that that the switching element (67) consists of a lever (67) loaded by a strong spring (71), the rests on the cam track (64, 65) with a locking pin (66). 6. turntable according to claim 5, characterized in that the backrest Curved track (64, 65) is mirror-symmetrical and has two opposing locking notches (65). 7 · Turntable according to one of Claims 1 to 6, characterized in that that the contact spring (73 ·) with its end one large distance from the axis of rotation (68) of the switching element has or is of great length, such that the The motor is switched on and off via a large adjustment range of the hold contact. 8, revolving stage according to one of claims 1 to 7, characterized in that it that with the contact spring (73) a second contact spring (75) connected at the same time or a little later when the contact spring (73) reaches the on position, whereby the performed Yerstellbewegung is reported back to the control unit. 000841/009 *