JPH0352241Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Field of Use This invention relates to a transport device using a vehicle for manually transporting a large amount of materials mainly in construction work and the like.

Conventional technology As a conveyance device using balls, a device in which balls are pressed against the dogleg-shaped surface of a rail in which the concave surface of a band-shaped side plate formed by recessing the side surface in a dogleg shape is opposed to the ball was developed in the early 1990s. 50-127810, in which a conveying body in which balls are arranged in the shape of a four-wheeled vehicle runs on a rail having a recessed portion on the upper surface;
Japanese Utility Model Application Publication No. 161131/1983 discloses a conveyor body in which balls are placed so as to be in contact with both slopes of a rail having a triangular cross-section to allow the conveyor body to travel.

Problems to be Solved by the Invention All of the above-mentioned conventional conveyance devices using balls use rails, but nothing is disclosed about the intersections of the rails, and the arrangement of the balls does not respond to changes in direction. The technology for changing direction at rail intersections was not considered.

In other words, in conventional conveying devices that use balls, the balls are smaller than ordinary wheels, and as a result, the running surface of the ball has a large effect, the running speed is slow, and it is difficult to run smoothly, so it is difficult to move on rails. Although the rails are able to travel quickly and smoothly, there is a problem in that it is difficult to freely change the direction due to the straightness of the rails.

Means for Solving the Problems In order to solve the above problems, in this invention, circular rail plates with guide bars are formed through each intersection of straight rail plates with guide bars that are orthogonal to each other, and each At the intersection of the rail plates, the rail assembly with the guide bar removed,
The present invention provides a conveying device comprising a cart having a ball rotating body attached to each corner of a square whose length on one side is equal to the rail spacing.

Embodiment An embodiment of this invention will be described based on the drawings.

In FIG. 5, reference numeral 1 denotes a linear rail plate, and a guide bar 3 is erected on the inside of the plate 2 in an L-shape, and the rail plates 1 on both sides are L-shaped connecting plates 4. are connected.

In FIG. 1, the linear rail plates 1 are orthogonal, and a circular rail plate 8 consisting of a plate 7 with guide bars 6 is provided through the four intersections 5 of the linear rail plates 1. 6 has been removed to form a rail assembly 9 as a whole.

In FIGS. 2 and 3, 10 is a trolley 11
Each corner of a square with a length W equal to the distance W between the straight rail plates 1 (meaning the distance between the center lines of the widths of the straight rail plates 1) on the lower surface of the frame. The ball rotating body 12 is placed at the position of
is installed. As shown in FIG. 4, in the ball rotating body 12, a small ball 15 is fitted along the surface of the ball 13 and between it and a receiver 14 having a concave spherical surface at equal intervals. Supported for rotation.

When the trolley 11 is placed on the linear rail plate 1, the balls 13 come into contact with the plate 2, and the trolley 11
When pressed, the trolley 11 runs on the linear rail plate 1. In FIG. 1, while the trolley 11 is running forward and backward on the linear rail plate 1, in order to change the direction to the left at the intersection 5, turn the entire trolley 11 to the left and the ball 13
is guided by the guide bar 6 of the circular rail plate 8 and rotates on the plate 7, so when the trolley 11 rotates until it aligns with the linear rail plate 1 in the left and right direction, when pushed to the left, the ball 13 is rotated. The direction in which the vehicle can travel on the linear rail plate 1 in the left and right direction can be changed.

At this time, if there is no need to change the direction of the trolley 11, make sure that the ball 13 is at the intersection 5, and then push the trolley 11 to the left while keeping it in the same state.The trolley 11 will move to the left while facing forward. Changing direction is easier than in the previous case because the vehicle can move forward, but if the travel path is narrow and a long object is loaded, the progress of the cargo will be hindered by obstacles in the path, so this type of In this case, as mentioned above, the trolley 11
It is necessary to find a way to change the direction of the

Note that it is of course possible to use a curved rail plate instead of the straight rail plate.

Effects of the invention This invention respects the above-mentioned means, and since the carriage runs by rolling friction between the ball rotating body and the rail plate, the carriage can move smoothly and quickly, and transportation efficiency is greatly improved. By installing rail plates, a flow line for transportation can be ensured, making transportation in narrow spaces easier. Since the conveyance device consists of a ball rotating body and a rail assembly consisting of a linear rail plate and a circular rail plate that are perpendicular to each other, the truck can easily perform the three movements of straight forward movement, traverse movement, and turning. Since it can be changed, long objects can be easily transported even in narrow passages. Since a linear rail plate and a circular rail plate for changing the traveling direction are formed on the rail assembly, the structure is simple and the installation is easy.

[Brief explanation of the drawing]

The drawings show one embodiment of this invention. Figure 1 is a plan view of the rail assembly, Figure 2 is a front view of the truck, and Figure 3 is a diagram showing the truck when it is on a straight rail plate. A side view, FIG. 4 is an enlarged sectional view of the ball rotating body, and FIG. 5 is a perspective view of the linear rail plate. DESCRIPTION OF SYMBOLS 1... Straight rail plate, 3... Guide bar, 5... Intersection, 6... Guide bar, 8... Circular rail plate, 9... Rail assembly, 11...
...Dolly, 12... Ball rotating body, W... Spacing, length.

Claims (1)

[Scope of utility model registration request] A circular rail plate 8 with a guide bar 6 was formed through each intersection 5 of linear rail plates 1 with guide bars 3 that were perpendicular to each other, and the guide bars 3 and 6 were removed at the intersection 5 of each rail plate 1 and 7. A conveying device comprising a rail assembly 9 and a cart 11 having a ball rotating body 12 attached at each corner of a square whose length W is equal to the rail spacing W on one side.