JPH0127975Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a connecting fitting for a Shinkansen maintenance central aisle transport vehicle deployed for the purpose of monitoring railway lines and recovering from failures.

This transport vehicle runs in the central passage between the Shinkansen's up and down tracks, and when used, it consists of a transport vehicle equipped with a cable drum, a transport vehicle equipped with various tools, and a transport vehicle equipped with various tools. A transport vehicle equipped with a ladder is connected to each other in a series by connecting fittings, and the vehicle is driven or propelled by a towing vehicle to a destination.

In this case, the conventional coupling structure of the transport vehicle is
As shown in FIG. 4, one vehicle body frame 16a
One end of the connecting fitting 14 is connected to the bracket 13 protruding from the other side by the connecting pin 15, and the other end of the connecting fitting 14 is connected by the connecting pin 15 to the bracket 13 protruding from the other vehicle body frame 16b. It's summery. However, in this conventional connection structure, the connection fitting 14 can be bent around the connection pins 15, 15, so when the transport vehicle is traveling, especially when being propelled by a towing vehicle, the connection fitting 14 can be bent from this connection part. However, this not only made it impossible to run smoothly but also was extremely dangerous as it caused slanting and meandering during the run.

The present invention was devised to address this situation, and its purpose is to prevent oblique or meandering when the transport vehicle is traveling, especially when it is being propelled, so that it can run smoothly. The purpose of this invention is to provide connecting fittings.

That is, in order to achieve this object, the connecting fitting of the present invention connects one end of the connecting fitting to the bracket protruding from the rear end of the vehicle body frame by a connecting pin, and also connects the aforementioned connecting fitting to the bracket protruding from the front end of the vehicle body frame. By connecting the other end of the metal fitting with a connecting pin, in the Shinkansen maintenance central aisle transport vehicle, which connects the transport cars back and forth with this connecting metal fitting, the front end left and right portions and the rear end left and right portions of the connecting metal fitting are contacted respectively. By providing a contact portion and bringing the contact portion into contact with the vehicle body frame, bending of the connecting fitting around the connecting pin is restricted.

An embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a plan view showing a Shinkansen maintenance central aisle transport vehicle A (hereinafter referred to as transport vehicle), which is an embodiment of the present invention. In the figure, A, A, and A are transport vehicles, and these three transport vehicles form a set, which are connected in series by connecting fittings 1 and 1 and run in the central passage B. be. Reference numeral 2 denotes a body frame of each transport vehicle A, which is formed into a framework structure using angle-shaped members or the like. Further, reference numerals 3, 3 and 4, 4 are running wheels attached to the lower surface of the vehicle body frame 2, and in this case, casters are used for the rear running wheels 4, 4. Also 5, 5, 5, 5
are guide rollers provided at four locations on the front, rear, left, and right sides of the vehicle body frame 2, and are pivotally supported at the tips of mounting plates 6 whose base ends are pivoted to the lower surfaces of corners of the vehicle body frame 2, and each of these guide rollers 5 is attached to the vehicle body frame 2. It is supported so as to be freely positionable in a state in which it is expanded outward from the side surface of 2 and a state in which it is housed inward from the side surface.

Next, FIG. 2 is a perspective view showing the connection structure of the transport vehicle, and FIG. 3 is a plan view of the same. This connection structure consists of a bracket 7 protruding from the center of the rear end of one body frame 2a, and a bracket 7 projecting from the center of the rear end of one body frame 2a, and the other body frame 2b.
It has a structure in which it is connected to a bracket 7 protruding from the center of the front end using a connecting fitting 1. In this case,
The connecting pins 10, 10 are inserted from above with pin holes 8, 8 formed in the brackets 7, 7 aligned with pin holes 9, 9 formed at the front and rear of the connecting fitting 1. Here, the connecting fitting 1 is formed in the shape of a horizontally flat rectangular cylinder, and both side plates 1a, 1
The front end and rear end of a are slightly extended, and the extended portions form contact portions 11a, 11a, 11b, and 11b that face the vehicle body frames 2a and 2b. In addition, 12, 12 is a reinforcing plate provided inside the connecting fitting.

Therefore, the transport vehicles A, A, A are connected by the connecting fitting 1 configured as described above, and are driven while being towed or propelled by a towing vehicle. At this time, the connecting pins 10, The bending movement of the connecting fitting 1 about the center point 10 is such that the contact surfaces 11a and 11b provided on the left and right sides of the connecting fitting 1 are connected to the vehicle body frame 2.
It is regulated by surface contact with a and 2b, which prevents bending from the connected portion and allows the connected carrier to run smoothly without skewing or meandering. In addition, in this connected state,
A minimum clearance is provided between each contact portion 11a, 11b of the connecting fitting 1 and the vehicle body frame 2a, 2b in order to cope with curve running and lateral vibration.

One embodiment of the present invention has been described above, but
The specific configuration of the present invention is not limited to that of the above embodiment. For example, in the embodiment of the present invention, the side plates 1a, 1a are extended as contact surfaces of the connecting fittings. This may be brought into full contact with the vehicle body frame, or an arm may be extended from the connecting fitting and its tip may be brought into contact with it, or a roller may be provided at the end of the arm.

As explained above, according to the present invention, since the bending movement of the connecting fittings is restricted, skewing and meandering caused by bending from the connecting parts are prevented, and smooth running can be achieved. Since the structure is simply provided with a restriction portion that brings the connecting fitting into contact with the vehicle body frame, the structure can be extremely simple.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing the connected state of a Shinkansen maintenance central aisle transport vehicle which is an embodiment of the present invention, Fig. 2 is a perspective view of the connection structure, Fig. 3 is a plan view of the same, and Fig. 4 is a conventional FIG. 3 is a plan view showing the connection structure of FIG. A: Shinkansen maintenance central passage transport vehicle, B: central passage, 1: connecting metal fittings, 2: body frame, 7: bracket, 10: connecting pin, 11a, 11b: contact parts.

Claims (1)

[Scope of utility model registration request] By connecting one end of the connecting fitting to a bracket protruding from the rear end of the vehicle body frame using a connecting pin, and connecting the other end of the connecting fitting to the bracket protruding from the front end of the vehicle body frame using a connecting pin, this connecting metal fitting In a Shinkansen maintenance central aisle transport vehicle that connects transport vehicles front and back, contact parts are provided on the left and right parts of the front end and the left and right parts of the rear end of the connecting fitting, and the contact parts are brought into contact with the car body frame to connect them. A connecting fitting characterized in that the connecting fitting is configured to restrict bending movement of the connecting fitting around a pin.