JPH0241274Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a wheel device that allows a traveling body to travel along a rail.

(Prior Art) Conventionally, in this type of wheel device, the axle of the traveling body rolls on two parallel rails.
There is a risk that the traveling body may easily fall over due to strong winds or other external forces.

As a measure to prevent wheels from falling off and falling over, most vehicles are equipped with a sliding locking device separate from the wheels that roll on the rail, or a locking device is installed in a limited area on the rail. All of them have drawbacks such as requiring other parts, causing slight obstacles to running, and complicating assembly and installation, resulting in increased costs.

(Purpose of the invention) In view of the above-mentioned conventional problems, the purpose of the present invention is to stably make the running body self-supporting in a wheel device and avoid wheel derailment or overturning in a simple manner. .

(Means for Achieving the Object) The wheel device of the present invention is configured to run on two parallel guide rails having a chevron-shaped cross section, with guide rollers provided at the lower part of the traveling body. A protruding edge is provided extending diagonally upwardly outward or inward over the longitudinal direction of the guide rail, and an axle on which the guide roller is mounted is inclined perpendicularly to the protruding edge. A guide roller is provided facing inward or outward, and the guide roller is engaged with the protrusion edge.

(Function) According to the wheel device of the present invention, the guide roller provided at the bottom of the traveling body facing inward or outward is directed obliquely upward across the length of two parallel guide rails having a chevron-shaped cross section. By engaging the protruding edges extending outward or inward, a fall prevention effect can be obtained.

(Example) The embodiments shown in the drawings will be described below.

Figure 1 shows the first embodiment and the second embodiment of the wheel device of the present invention.
The figure shows the second embodiment.

In the wheel device of the present invention, two guide rails 1, 1 each having a chevron-shaped cross section are laid at a predetermined distance from each other. Each of the guide rails 1 has a protruding edge 2 extending diagonally upwardly outward or inward over the entire length of the guide rail 1.

This protruding edge 2 is for engaging a guide roller 5, which will be described later.
A concave groove portion 6 for engaging with the protrusion edge 2 and a convex portion 7 for engaging with the protrusion edge 2 are formed on the protrusion.

In the wheel device of the present invention, when the traveling body 3 is operated to travel, the guide rollers 5, 5 are moved along the lengthwise direction of the pair of guide rails 1, 1 having a chevron-shaped cross section, and the projecting edge 2 extends obliquely upward. The traveling body 3 travels by rolling along.

A guide roller 5 provided at the bottom of the traveling body 3 facing inward or outward is pivotally attached to an axle 4 inclined perpendicularly to the protrusion edge 2, and the guide roller 5 has a concave surface. The groove portion 6 is engaged with the protruding edge 2 to enable the vehicle to travel freely.

In this embodiment, in order to extend the protruding edge 2 on the guide rail 1, a strip member is welded to the slope of the existing guide rail 1 having a chevron-shaped cross section as in this embodiment. Of course, it is also possible to use a guide rail 1 that is integrally formed with the protruding edge 2.

Further, a guide roller 5 is provided at the lower part of the traveling body 3, and the axle 4 of the guide roller 5 is tilted vertically according to the inclination angle of the protrusion edge 2, so that the concave groove portion 6 of the guide roller 5 is is engaged with the protruding edge 2 to enable it to travel freely. At this time, as long as the projecting edge 2 is long and the concave groove of the guide roller 5 is deep, a better effect can be expected as long as the projecting edge 2 does not interfere with driving or the passage of automobiles.

The guide roller 5 provided at the bottom of the traveling body as shown in the first and second embodiments of the present invention
The protruding edge 2 extending diagonally upward along the length of the guide rail 1 can be turned inward or outward as necessary.

(Effect of the invention) The wheel device of the invention has the axle 4 tilted perpendicularly to the protruding edge 2, and the guide roller 5
Since the traveling body 3 is pivoted, the operability of the traveling body 3 is extremely good. Just by engaging the guide roller 5, derailment and overturning can be prevented, and even if the traveling body 3 is tilted due to wind pressure, etc., the convex part 7 of the guide roller 5 is locked to the protruding edge 2, so that the traveling body can be prevented from falling off. The inclination of the body 3 is corrected, making it extremely stable, self-supporting, and running smoothly.

Furthermore, since the guide rail 1 of the present invention does not have a guide groove or the like, there is no possibility of dust or dirt accumulating and hindering the running, and since the contact area between the guide roller 5 and the protruding edge 2 is small, the frictional resistance is also reduced. The running operation of the running body 3 can be performed easily.

As described above, the wheel device of the present invention allows the traveling body to stand on its own in an extremely stable manner without using any locking device other than wheels, so it is widely adopted in all devices that use wheels and rails, such as transportation devices and gate devices. It has a remarkable effect.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a main part showing an embodiment in which an outward projecting edge is extended, and FIG. 2 is a main part sectional view showing an embodiment in which an inward projecting edge is extended. DESCRIPTION OF SYMBOLS 1... Guide rail, 2... Projection edge, 3... Running body, 4... Axle, 5... Guide roller, 6...
... Concave groove part (guide roller), 7... Convex part (guide roller).

Claims (1)

[Scope of utility model registration request] Two parallel guide rails 1, 1 with a chevron-shaped cross section
In a device in which guide rollers 5, 5 are provided at the lower part of the running body 3 to run the upper part, an outward or inward projecting edge 2 is directed obliquely upward across the longitudinal direction of the guide rail 1. The axle 4 which extends and has the guide roller 5 attached thereto is attached to the protruding edge 2.
A wheel device characterized in that the guide roller 5 is provided to face inward or outward so as to be inclined perpendicularly to the wheel, and the guide roller 5 is engaged with the protrusion edge 2.