JP3181567B2 - Model train with electric motor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a model train equipped with an electric motor, and more particularly, to a model railway train that is made very similar to an actual train and travels on rails by an electric motor mounted in a body. For vehicles.

[0002]

2. Description of the Related Art Conventionally, for example, a motor vehicle is known as a model railway vehicle equipped with an electric motor. A conventional model railway powered vehicle has been configured as shown in FIGS. 3, 4 and 5.

[0003] That is, a conventional model railway powered vehicle 1 basically has a chassis 4 mounted on two bogies 3 each having six driving wheels 2, an electric motor 5 is mounted on the chassis 4, and 4 to body 6
And other exterior parts such as a deck plate 7a, a handrail 7b, and an oil tank 7c.

[0004] Such a railway model motor vehicle 1 supplies electric power to an electric motor 5 from a rail (not shown) via wheels 2 to drive the electric motor 5, and transmits its rotational force to the wheels 2 of a bogie 3. It was meant to run on rails.

The structure of this point will be described more specifically. The bogie 3 is provided with a gear 9a at an intermediate portion of an axle 8 supporting the wheels 2, and further includes a large number of gears 9b meshing with the gear 9a. The gear train 9 is constituted by a large number of gears 9a and 9b.

The output shaft 5a of the electric motor 5 mounted on the chassis 4, ie, the drive shaft,
The worm gear 5c extends to the center of the upper part of the bogie 3 with the b interposed therebetween, and a worm gear 5c is attached to a tip end thereof. The worm gear 5c is rotatably supported by a bearing 10 formed on the bogie 3 and is supported by the gear train 9 Are engaged.

As a result, when the electric motor 5 rotates,
The rotation of the drive shaft 5a is transmitted to the gear train 9 of the bogie 3 via the worm gear 5c, and further transmitted from the gear train 9 to the wheels 2 via the axle 8, whereby the power vehicle 1 travels.

At this time, the structure for supplying power from the rail to the electric motor 5 via the wheels 2 is as follows. That is, conductive bearing plates 11a and 11b that support the ends of the axle 8 to rotatably support the wheels 2 are attached to the inside of the left and right frame portions 3a and 3b that constitute the bogie 3. One end of a lead wire 12 is connected to each of the bearing plates 11a and 11b at an appropriate position.

The other end of each lead wire 12 is connected to an end of a thin rod 14 arranged along both sides of the upper surface of an electronic component mounting plate 13 arranged above the electric motor 5. One end of a strip-shaped thin copper plate 15 is connected to each of two power supply terminals of the electric motor 5 located below the electronic component mounting plate 13, and these copper plates 15 rise up and each other end thereof. Is bent on the surface of the electronic component mounting plate 13 so as to wind the side edge from below the electronic component mounting plate 13.

Each of the thin rods 14 arranged along both sides of the upper surface of the electronic component mounting plate 13 comes into contact with the surface of the other end of the copper plate 15 bent on the surface of the electronic component mounting plate 13. The copper plates 15 are electrically connected to the respective rods 14 so that the electric motor 5 is connected to the rails, the wheels 2, the bearing plates 11a, 11b, and the leads. Power is supplied via the wire 12, the bar 14, and the copper plate 15.

[0011]

However, the conventional model train 1 as described above has the following problems. That is, the power supply structure to the electric motor 5 is different from the bearing plates 11a and 11b provided on the carriage 3 as described above.
And the bar wires 14 mounted on the electronic component mounting plate 13 are connected by the lead wires 12, so that the wiring takes time and labor, and the assembly of the wires takes time. Therefore, it is difficult to assemble other components.

The gear train 9 to which the rotation from the drive shaft, which is the output shaft 5a of the electric motor 5, is transmitted is disposed at the center of the upper part of the bogie 3 as described above. 16 and the gear box 16
Was formed as a component part of the cart 3 made of resin.

Conventionally, this gear box 16
Are two side case parts 16a, 16
b and a bottom plate 16c, and a bearing portion 10 rotatably supporting the worm gear 5c provided at the end of the rotating shaft of the electric motor 5 is integrally formed on the upper surface of one side case portion 16b. Is formed.

On the other hand, the gear train 9 is formed by interlocking a plurality of gears 9b including a gear 9a attached to a plurality of axles 8, and the bogie 3 uses the gear train 9 as described above.
It is assembled while being housed in a gear box 15 made of parts.

As described above, since the gear box 15 is conventionally composed of three parts, in order to combine these three parts into the gear box 15, the dimensional accuracy and machining accuracy of each part must be considerably increased. did not become. In addition, when the number of parts is large and the assembling operation is complicated, it takes time and trouble to complete the process, which causes a decrease in productivity.

SUMMARY OF THE INVENTION An object of the present invention is to solve the conventional problems, has a simple wiring structure for supplying power to an electric motor mounted in a body, and has a driving force of the electric motor. In order to provide a model train equipped with an electric motor, which has an excellent assemblability and thus has a high productivity, including an improved gear box for storing a gear train for transmitting to a wheel supported by a bogie. is there.

[0017]

A model train equipped with an electric motor according to the present invention has a chassis mounted on a bogie having a current collector plate electrically connected to wheels, and a body mounted on the chassis. Power is supplied from the rail to the electric motor mounted on the chassis via the wheels and the current collecting plate to drive the electric motor, and the driving force is transmitted to the wheels via the gear train for driving the wheels provided on the bogie. In a model railway vehicle incorporating an electric motor, a wiring board attached to a chassis, a protruding terminal projecting above the bogie from the current collector plate, abutting on the wiring board to be in an electrically conductive state, and power supply to the electric motor. And a band-shaped metal plate for connecting the terminal to a wiring board provided on the chassis.

Further, in a model railway vehicle equipped with an electric motor according to the present invention, a chassis on which the electric motor is mounted is a member constituting a floor panel of the model railway vehicle. Further, the wiring board has a spring property, and maintains a constant contact with the protruding terminal which projects from the current collector plate above the carriage and comes into contact with the wiring board. Still further, the current collector plate attached to the trolley includes a bearing portion for bearing an end portion of the axle projecting outward from a center portion of the wheel.

In addition, in the model railway vehicle equipped with the electric motor according to the present invention, a gear train for driving wheels provided on the bogie is housed in a gear box, and the gear box is divided into a vertically divided box body and a bottom plate. The box main body and the bottom plate are assembled together.

According to the model railway vehicle equipped with the electric motor according to the present invention, when the chassis is mounted on the bogie and assembled, a strip-shaped wiring in which a protruding terminal projecting upward from a current collector plate provided on the bogie is attached to the chassis. The substrate comes into sliding contact with the substrate to be in an electrically conductive state. When the electric motor is mounted on the chassis, the strip-shaped metal plate extending from the power supply terminal is electrically connected to a wiring board provided on the chassis.

As a result, there is no need to attach lead wires as in the case of a conventional model railway powered car, but simply assemble the bogie to the chassis and mount an electric motor on the chassis, and the electric power is automatically generated from the wheels. A power supply structure for the motor is formed.

Further, in the model railway vehicle equipped with the electric motor according to the present invention, the gear box for accommodating the gear train for driving the wheels provided on the bogie is composed of a vertically divided box body and a bottom plate. The configuration makes it very easy to assemble, and it is not necessary to increase the dimensional accuracy of each part more than necessary.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a preferred embodiment shown in the drawings of a model railway vehicle equipped with an electric motor according to the present invention will be described in more detail. In the embodiment described here, a model railway powered vehicle which is also taken up in the description of the prior art will be described as an example of a model railway vehicle incorporating the electric motor according to the present invention.

The external shape of the whole model railway powered vehicle of this embodiment is almost the same as that shown in FIG. 3 as the prior art. Therefore, only the internal structure of the model railway powered vehicle of this embodiment will be described with reference to the exploded perspective views of FIGS. 1 and 2.

At this time, the same or corresponding components as those of the conventional model railway power train 1 shown in FIGS. 3 to 5 are denoted by the same reference numerals and description thereof is omitted. In FIG. 1, parts of the body 6 and exterior parts, such as the deck plate 7a and the handrail 7b, which are attached in the same manner as in the related art, are omitted for easy understanding of the drawing.

As shown in FIGS. 1 and 2, the model railway powered vehicle of this embodiment basically has a floor plate 21 as a chassis mounted on two bogies 20 each having six driving wheels 2, The electric motor 5 is installed on the floor plate 21 and the body 6 (see FIG. 3) and other exterior parts (only the oil tank 7c is shown in FIG.
Other parts are omitted).

A gear train 9 for transmitting rotational force to drive the wheels 2 is provided at the center of the bogie 20 in the same configuration as the bogie 3 of the conventional model train 1 described above. The output shaft 5a of the electric motor 5 installed at the center extends to the center of the upper part of the bogie 3 with a flywheel 5b interposed therebetween, and the worm gear 5c at the distal end thereof extends to the bogie 20.
Is rotatably supported by a bearing 10 formed in the same manner as the conventional railway model power train 1.

As a result, when the electric motor 5 rotates,
The rotation of the drive shaft 5a causes the bogie 20 to rotate through the worm gear 5c.
This gear train 9 is transmitted to the wheels 2 via the axle 8 from the gear train 9 so that the motor vehicle runs. At this time, the electric motor 5
The structure for supplying power to is as follows.

That is, inside the left and right frame portions 20a and 20b constituting the carriage 20, an end portion of the axle 8 is supported to rotatably support the wheel 2, and a conductive material that enables electricity to be supplied from the wheel 2 is provided. Metal (for example, a copper plate) current collector plates 22a and 22b are attached.
The projections 23a and 2b are provided on the upper edge of the middle portion in the length direction of the
3b are respectively formed.

On the other hand, the floor plate 21 constituting the chassis
A narrow groove 24 is formed on both sides of the front surface of the device, and an elongated power supply circuit 25 is fitted and arranged in the groove 24.
It is fixed with an adhesive or the like. The power supply circuit 25 is configured by fitting a thin copper plate 25b, which is an elongated wiring board, into a groove formed on the surface of an insulating material 25a such as a rubber or plastic material and fixing the thin copper plate 25b with an adhesive or the like.

The reason for covering the entire side surface and the lower surface of the copper plate 25b with the insulating material 25a is that the floor plate 2
1 is formed by aluminum die-casting, so copper plate 2
This is because it is necessary to attain insulation between 5b and floor plate 21.

By the way, slots 26 are formed in the grooves 24 formed on both sides of the surface of the floor plate 21 at predetermined positions near the position where the carriage 20 is located. The power supply circuit 2 fitted in the groove 24
5 is a copper plate 25b only at a portion corresponding to the slot 26.
The insulating material 25a covering the lower surface of the substrate has been removed. Thus, when viewed from the lower surface of the floor plate 21, it can be seen that the copper plate 25b is disposed so as to close the slot 26.

When the trolley 20 is placed at a predetermined position below the floor plate 21, the above-described current collector plate 22 forming the trolley 20
The projections 23a and 23b of the floorboard 21
Enters the slot 26 from below, and comes into contact with the copper plate 25b. Therefore, the projections 23a and 23b function as projecting terminals. Since the copper plate 25b has some resiliency, when it receives a slight pushing force by the protruding terminals 23a and 23b, it is bent upward to maintain the contact state properly.

Thus, when the truck 20 is assembled and the floor plate 21 as a chassis is mounted on the two trucks 20 and assembled, the rails, the wheels 2, the current collector plates 22a, 22
b and the copper plate 25b, which is a conductive metal plate, automatically become electrically conductive. The electric motor 5 is mounted on a curved recess provided in the vicinity of an intermediate portion in the longitudinal direction of the floor plate 21, and the electric motor 5 is fixed to the floor plate 21 by mounting a support 27 thereon and screwing it to the floor plate 21. .

An electronic component mounting plate 28 is further disposed on the upper surface of the support 27 and screwed. At this time, the tip of the strip-shaped thin copper plate 15 rising upward from the power supply terminal of the electric motor 5 is relatively attached to the electronic component mounting plate 28.
The electronic component mounting plate 28 is inserted into a hole formed in the electronic component mounting plate, and an end protruding from the hole is bent outward.
Contacts an electronic circuit formed in advance.

On the other hand, on both sides of the electronic component mounting plate 28, leg plates 29 made of a conductive metal plate having a spring property are mounted so as to hang downward. This leg board 29
The upper end is connected to an electronic circuit previously formed on the electronic component mounting plate 28, or is integrally formed with a substrate material forming the electronic circuit. A terminal 29a is formed.

When the electronic component mounting plate 28 is screwed on the support base 27 as described above, the press contact terminals 29a, which are the lower end portions of the legs 29 hanging down from both sides of the electronic component mounting plate 28, And the copper plate 25b of the power supply circuit 25 provided on both sides of the surface of the floor plate 21. Thus, the power supply circuits 25 provided on both sides of the surface of the floor plate 21
The copper plate 25b is electrically connected to the copper plate 15 connected to the power supply terminal of the electric motor 5 via the leg 29 of the electronic component mounting plate 28 and an electronic circuit or the like.

As a result, the electric motor 5 installed on the floor plate 21 is supplied with power from the rail via some parts such as the wheels 2 and becomes drivable. The rotating force, that is, the driving force of the electric motor 5 is transmitted to the gear train 9 via the worm gear 5c attached to the tip of the rotating shaft 5a, whereby the wheels 2 rotate.

A gear box 30 for housing the gear train 9
Is divided into upper and lower parts, and is composed of two parts, an upper box body 30a and a bottom plate 30b. The bearing 10 for rotatably supporting the worm gear 5c provided at the tip of the rotating shaft of the electric motor 5 is provided. Are formed integrally on the upper surface of the box body 30a.

As described above, in the model train powered vehicle according to this embodiment, the gear box 3 provided on the bogie 20 is provided.
Since 0 is composed of two parts, it is very easy to assemble, and it is not necessary to increase the dimensional accuracy of each part more than necessary.

Although the above-described embodiment has been described with reference to a so-called railway model locomotive such as a railway model electric locomotive and a railway model steam locomotive, the present invention is limited to such a locomotive. It is needless to say that the present invention can be applied to any type of model railway vehicle in which an electric motor is mounted in a body to drive wheels.

[0042]

As described above, according to the railway model vehicle equipped with the electric motor of the present invention, there is no need to attach lead wires as in a conventional railway model power vehicle.
Simply assembling the bogie to the chassis and mounting the electric motor on this chassis, the power supply structure from the wheels to the electric motor can be automatically formed, and since there are no lead wires, this hinders the assembly. Without doing so, productivity can be significantly improved.

In the model railway vehicle provided with the electric motor according to the present invention, the gear box for accommodating the gear train for driving the wheels provided on the bogie is composed of a vertically divided box body and a bottom plate. Since it is configured, it is very easy to assemble, and it is not necessary to increase the dimensional accuracy of each part more than necessary, so that the assemblability can be improved, and thereby the productivity can be improved.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a model railway powered vehicle according to one embodiment of a model railway vehicle equipped with an electric motor of the present invention.

FIG. 2 is an exploded perspective view of a bogie constituting the model railway powered vehicle shown in FIG.

FIG. 3 is a perspective view showing an external shape of the present invention and a conventional model railway powered vehicle.

FIG. 4 is an exploded perspective view showing a conventional internal structure of the model railway powered vehicle shown in FIG.

FIG. 5 is a perspective view showing a conventional bogie constituting the model railway powered vehicle shown in FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Railway model motor vehicle 5 Electric motor 5a Rotating shaft 5b Flywheel 5c Worm gear 6 Body 7a Deck plate (exterior parts) 7b Handrail 7c Oil tank 15 Copper plate 20 Dolly 21 Chassis (floor plate) 22a Current collecting plate 22b Current collecting plate 23a Projection Terminal 23b Projecting terminal 24 Groove 25 Power supply circuit 25a Insulating material 25b Wiring board (copper plate) 26 Slot 27 Support base 28 Electronic component mounting plate 29 Leg 29a Press-contact terminal 30 Gear box 30a Box body 30b Bottom plate

Claims (5)

(57) [Claims] 1. A chassis is mounted on a truck provided with a current collector plate electrically connected to wheels, and a body is mounted on the chassis. The chassis is mounted on a rail via the wheels and the current collector plate. A model railway vehicle equipped with an electric motor, which supplies power to and drives an electric motor mounted on the chassis and transmits the driving force to the wheels via a gear train for driving wheels provided on the bogie; A wiring board attached to a chassis, a protruding terminal that protrudes from the current collector plate above the carriage, is brought into electrical conduction by contacting the wiring board, and a power supply terminal of the electric motor is provided on the chassis. And a band-shaped metal plate connected to the wiring board. 2. The model train equipped with an electric motor according to claim 1, wherein the chassis on which the electric motor is mounted is a member constituting a floor plate of the model train. 3. The wiring board according to claim 1, wherein the wiring board has a spring property, and protrudes from the current collector plate to a position above the carriage to maintain constant contact with a protruding terminal abutting on the wiring board. Or a model train equipped with the electric motor according to 2. 4. The vehicle according to claim 1, wherein the current collecting plate attached to the bogie includes a bearing for bearing an end of an axle projecting outward from a center of the wheel.
A model railway vehicle comprising the electric motor according to any one of claims 1 to 3. 5. A gear train for driving wheels provided on the bogie is housed in a gear box, and the gear box comprises a vertically divided box body and a bottom plate, and the box body and the bottom plate. A model railway vehicle equipped with the electric motor according to any one of claims 1 to 4, characterized in that: