JP2002028379A - Wheel for model train - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wheel for a model train that does not easily get dirty, prevents degradation of electric contact with a rail, and reduces frequencies for cleaning and changing. SOLUTION: The wheel 10 for a model train is used for a model train to which the electricity is supplied through the rail. The wheel has an electroplated layer 16 containing a fluororesin at least on the area that has contact with the rail.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a railway model wheel used for a vehicle running on a rail of a railway model.

[0002]

2. Description of the Related Art In general, a railway model includes a vehicle having wheels, a bogie, and a power for driving the wheels, a rail supporting the wheels of the vehicle, smoothly driving the vehicle, and transmitting electricity to the power of the vehicle, and a rail. And a control device for controlling the voltage and polarity of the electricity while supplying electricity to the power.

Conventionally, electricity from the rail is transmitted to motive power provided inside the vehicle via wheels plated with nickel or the like over the entire surface.

[0004]

However, a wheel whose surface is plated with nickel or the like is liable to cause dirt to adhere to the wheel surface, possibly because fine sparks are generated due to electric contact when the wheel is rotated. However, there is a problem that the electrical contact property is easily deteriorated.

SUMMARY OF THE INVENTION In view of the foregoing, it is an object of the present invention to provide a railway model wheel in which dirt hardly adheres, electrical contact with a rail is prevented from deteriorating, and cleaning frequency and replacement frequency are reduced. .

[0006]

According to a first aspect of the present invention, there is provided a train wheel for use in a train model in which electricity is supplied to the power of a vehicle body via a rail. A wheel for a railway model, characterized in that a plating layer containing a fluorine-based resin is provided in a region in contact with a rail.

According to a second aspect of the present invention, there is provided a wheel for a railway model according to the first aspect, wherein the plating layer is a nickel plating layer.

A third aspect of the present invention is the railway model wheel according to the first or second aspect, wherein the plating layer is formed by electroless plating.

[0009] Here, plating containing a fluorine-based resin is used for the purpose of improving lubricity and the like, but has not been used for railway model wheels.

[0010] The present invention has been completed based on the finding that the use of plating containing a fluorine-based resin for a railway model wheel provides a special effect of preventing the attachment of dirt.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail based on embodiments.

FIG. 1 is a perspective view and a sectional view of a wheel according to a first embodiment of the present invention.

The wheels according to the present embodiment are wheels used in a railway model commonly called an N gauge. As shown in FIG. 1, a pair of wheels 1 is provided near both ends of a cylindrical axle 65.
0 is provided.

The wheel 10 has a disk shape, and has a large-diameter portion 11 having a large outer diameter on one surface side and a small-diameter portion 12 having an outer diameter slightly smaller than the large diameter portion 11 on the other surface side.

The outer peripheral surface of the small diameter portion 12 of the wheel 10 is in sliding contact with the rail, and derailment from the rail is prevented by a side surface portion 13 of a step due to an outer diameter difference from the large diameter portion 11.

In the center of the wheel 10, there is provided a through hole 14 penetrating in the thickness direction. This through hole 14
The end of the axle 65 is inserted through the
0 is fixed near both ends of the axle 65.

In the wheel 10, at least a portion of the base material 15 that contacts the rail, in this embodiment, a conductive plating layer 16 containing a fluorine resin and having conductivity is formed by electroless plating over the entire surface. Have been.

The base material 15 for forming the wheel 10 is not particularly limited, and examples thereof include plastics and metals. In the present embodiment, a plastic that is inexpensive and has high molding accuracy is used as the base material 15.

The material for forming the fluorocarbon resin-containing plating layer 16 provided on the surface of the base material 15 is not particularly limited. For example, nickel, gold, zinc, or the like may be used. Can be.

Further, the fluorine-based resin contained in the plating layer 16 is, for example, polytetrafluoroethylene (PT).
FE), polychloroethylene trifluoride (PCTFE),
Examples thereof include polyvinylidene fluoride and fluorinated ethylene propylene copolymer (FEP).

The plating method for forming the plating layer 16 of the wheel 10 is not particularly limited, for example, such as electroplating and electroless plating. Since there is a possibility that chipping, running failure, electrical contact failure, and the like may occur, electroless plating that can form the plating layer 16 with higher precision is preferable.

On the other hand, the axle 65 is formed of an insulator such as a resin, so that electricity for energizing the wheels 10 provided near both ends is not short-circuited.

The wheel 10 and the axle 65 are integrally formed of a resin such as plastic, which is an insulator, and the plating layer 16 is formed only on the surface of the wheel 10 by selective electroless plating. Is also good. Furthermore, the plating layer 16 does not need to be provided over the entire surface of the wheel 10. For example, the plating layer 16 is provided by selective electroless plating or the like only on the area in sliding contact with the rail, that is, on the outer peripheral surface of the small diameter portion 12. Is also good.

In this embodiment, the plating for forming the plating layer 16 provided on the surface of the wheel 10 is 83 ± 1 wt% of nickel (Ni) and 9 ± 1 wt% of phosphorus (P).
% As polytetrafluoroethylene (PTFE) 23 ± 3 vol% as a fluorine-based resin, and a particle size of 0.2 to 0.1%.
3 μm PTFE particles were dispersed at a density of 6.6 g / cm ² , and a plating layer 16 was formed by electroless plating on the entire surface of the vehicle using this.

As described above, by providing the plating layer 16 containing a fluorine-based resin on the surface of the wheel 10,
Thus, the frequency of cleaning and replacement of the wheel 10 can be reduced. In addition, when electricity from the rail is supplied to the motor in the vehicle via the wheel 10, deterioration of the electrical contact with the rail can be prevented since the wheel is unlikely to be stained.

A model railway vehicle equipped with such wheels 10 will be described below.

Although the vehicle described below is a vehicle having motive power capable of self-running, it may be a vehicle having no motive power such as a passenger car towed by the self-propelled vehicle.

FIG. 2 is an exploded plan view of the vehicle according to the present embodiment.

As shown in the figure, the vehicle 20 includes an exterior frame 30.
, A printed circuit board 40, and a vehicle body frame 50.

A motor 51 serving as a power is mounted on the vehicle body frame 50.
And a drive gear 60 for transmitting rotation from the motor 51.
And a plurality of wheels 10 that are rotated by a drive gear 60.

The wheels 10 move forward and backward in the traveling direction of the vehicle 20.
They are arranged side by side and are rotatably held by the axle 65 on the body frame 50.

Here, the drive gear 60 for transmitting the rotation of the motor 51 to the wheels 10 will be described. FIG. 3 is an enlarged plan view of the drive gear 60 mounted on the vehicle body frame 50.

A spring worm 61 is provided on the rotating shaft 52 of the motor 51 so as to extend in the axial direction. As shown in FIG. 3, a helical gear 62 having a double pitch meshes with the spring worm 61, and a first idler gear 64 meshes with a spur gear 63 integrally or fixed with the helical gear 62. The first idler gear 64 meshes with a first axle gear 66 fixed to one axle 65a, and meshes with a second idler gear 67. The second idler gear 67 is connected to a second idler gear 67 fixed to the other axle 65b.
It is in mesh with the axle gear 68. With such a structure, the motor 51 that is the power drives the wheels 10.

Here, the conduction line for supplying electricity from the rail 100 to the motor 51 will be described.

The vehicle body frame 50 is provided with a plate-shaped current collecting shoe 53 slidably contacting the outer peripheral surface of the small diameter portion 12 of the wheel 10 so as to be vertically movable. The current collecting shoe 53 is provided with a protrusion 54 projecting toward the printed circuit board 40, and one end of a coil spring 55 is fitted to the protrusion 54.

On the other hand, on the bottom surface of the printed circuit board 40, there is provided a conducting portion 41 with which the other end of the coil spring 55 contacts, and the conducting portion 41 is connected to the motor 51 via the diode bridge 42.
Is connected to the input terminal 51a.

The coil spring 55 is connected to the conductive portion 41.
The current collecting shoe 53 is elastically pressed against the
To ensure the conduction between the current collecting shoe 53 and the wheels 10.

With such a structure, electricity from the rail 100 is supplied to the wheel 10, the current collecting shoe 53, and the coil spring 55.
And a motor 51 via a printed circuit board 40.

Further, the vehicle body frame 50 and the printed circuit board 40
A self-propelled vehicle 20 is formed by fitting an exterior frame 30 which is an exterior of the vehicle into the vehicle.

The structure of the vehicle, the electrical connection between the wheels and the motor, and the like are merely examples, and the present invention is not limited thereto. In addition, the railway model wheel of the present invention can exert an effect of preventing dirt by using not only the wheel for achieving electrical conduction but also all the wheels of such a railway model.

[0041]

According to the railway model wheel of the present invention, the adhesion of dirt to the wheel can be reduced by providing a plating layer containing a fluorine-based resin in a region where the wheel slides on the rail. At the same time, it is possible to prevent deterioration of electrical contact with the rail. Therefore, the frequency of cleaning and replacing the wheels can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view and a sectional view of a railway model wheel according to an embodiment of the present invention.

FIG. 2 is an exploded plan view of the vehicle according to the embodiment of the present invention.

FIG. 3 is an enlarged plan view of a main part according to an embodiment of the present invention.

[Description of Signs] 10 Wheel 11 Large diameter portion 12 Small diameter portion 13 Side surface portion 14 Through hole 15 Base material 16 Plating layer 20 Vehicle 30 Exterior frame 40 Printed circuit board 50 Body frame 60 Drive gear 100 Rail

Claims (3)

[Claims] 1. A railway model wheel used for a railway model in which electricity is supplied to the power of a vehicle body via a rail, wherein a plating layer containing a fluororesin is provided at least in a region in contact with the rail. A wheel for a railway model, characterized in that: 2. The railway model wheel according to claim 1, wherein the plating layer is a nickel plating layer. 3. The wheel according to claim 1, wherein the plating layer is formed by electroless plating.