JPH031167Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a frame structure of a transport vehicle, and particularly relates to a self-propelled transport vehicle mainly used in so-called FMS.

In the self-propelled transport vehicle used in the above FMS (Flexible Manufacture Carrying System), there are a wide variety of articles that are placed on the vehicle and transported, such as workpieces, tools, and pallets. In particular, workpieces being processed have a large amount of oil attached to them,
When an article covered with a large amount of oil is placed on the trolley and transported, the oil will flow down during transport and accumulate in inappropriate places such as the joints on the upper part of the trolley, causing damage over a long period of time. There are problems such as oil entering the inside of the trolley and causing malfunctions, and oil flowing down to the floor wetting the floor and causing slips.

In addition, since the purpose of the above-mentioned trolley is to place articles on it and transport them, additional devices such as an oil discharge device may be installed on the trolley to reduce the effective article placement area. There is also a demand that it is not desirable to increase the weight of the truck itself.

Therefore, this invention provides a new truck structure that solves the above problems all at once, and is characterized in that the frame plate on the top of the truck main body is provided at an angle, and the frame itself on the top of the main body is used as an oil pan. shall be.

Examples will be described below based on the drawings.

FIG. 1 is a side view of a self-propelled transport vehicle 2 having a main body frame 1 formed according to this invention. By doing this, it moves straight forward and backward, and by changing the number of rotations on the left and right sides, it turns.
Also, by reversing the left and right rotation directions, it is possible to rotate and change direction at the same point.
Reference numeral 4 indicates a pair of caster-like driven wheels provided at the front and rear, 5 indicates a bumper formed by bending a leaf spring into an oval shape, and 6 indicates an antenna for detecting a guide wire 8 buried under the running floor surface 7. The antenna 6 detects the position of the guide wire 8 while traveling along the guide wire 8, and the proximity switch 11 detects the iron piece 9 provided at the stop position and stops. A centering elevating body 13 having a concave surface 13a having the same shape as the conical cone 12 is lowered and fitted to the conical cone 12 on the surface, thereby making it possible to accurately position the conical cone 12 at a stop position.

A table 14 for placing an article W, which is raised and lowered by a cylinder (not shown), is provided on the upper part of the carrier 2, and the frame 1a structure at the upper part of the carrier is constructed as an oil pan in particular as follows. There is.

That is, the frame of the truck is basically constructed by combining a hollow rectangular pipe and a sheet metal, but the upper frame 1a, as shown in FIGS. 2 to 4,
Square pipes 16 and 17 are assembled in a # shape inside the square pipe 15 on the outer circumference assembled into a rectangle, and each square pipe 1
A frame plate 1 made of sheet metal is placed between 5, 16, and 17.
8 are welded together without any gaps. 19 is a reinforcing square pipe around the central hole 21. The pipe 16 is particularly designed to span the entire width of the vehicle body, and all the frame plates 18 are arranged in series so as to be inclined toward either of the two front and rear square pipes 16. 3 and 4), an oil passage hole 22 is opened in a portion of the side surface of the square pipe 16 where the frame plate 18 is connected. The frame plates 18a on the left and right sides of the vehicle body are bent into a chevron shape. Further, an oil discharge pipe 24 is provided by connecting the openings 23 formed in the bottom surface of the front and rear square pipes 16, and a discharge opening/closing pot 25 is provided at an appropriate position of the pipe 24.

Since the trolley of this embodiment has the above-described structure, even if oil flows down from the article W on the loading table 14 and falls onto the upper surface of the trolley, the oil will flow over the frame plate 18 to the third and fourth rows. It flows in the direction of the arrow in the figure (in the direction of inclination), passes through the through hole 22, collects in the square pipe 16, does not travel along the car body and fall to the floor, and does not flow at the joints of the frame, etc. as in the conventional case. The oil that accumulates inside the square pipe 16 does not accumulate in areas where there is a risk of intrusion into the interior.
Further, it flows into the discharge pipe 24 and is stored in the pipes 16 and 24.

If the amount of oil flowing down is extremely large, an oil reservoir (not shown) may be provided upstream of the tank 25 of the discharge pipe 24.

Of course, the oil accumulated in the pipes 16 and 24 is drained into another container by opening the tank 25 periodically.

Note that in the above embodiment, the square pipe 16 is
The opening diameter of the oil passage hole 22 is made as small as possible,
There was one location for each frame board 18 in each section, but
The diameter of the through hole 22 may be increased or decreased depending on the quality of the oil, or it may be opened at two or more locations. Further, the frame plate 18 may be provided with grooves or slopes for guiding the oil to the through holes 22.

Alternatively, as shown in Figure 5, the entire frame plate 26 on the top surface of the main body may be simply inclined in one direction, and the oil reservoir groove 27 may be provided at the lowest position of the inclination.

Furthermore, although the above embodiment was applied to an electromagnetic induction self-propelled bogie, it is of course applicable to self-propelled bogies that use an optical guidance system, and can also be applied to general bogies with tracks. It is possible.

As is clear from the above explanation, the bogie according to this invention has a frame plate on the top of the main body inclined, and the frame itself on the top of the main body is used as an oil pan, so as mentioned at the beginning, a large amount of oil can be absorbed. Even if items with adhered substances are transported, there is no risk that the oil will enter the inside of the cart over a long period of time and cause malfunctions, or that the oil will flow down to the floor and cause slips. There are no drawbacks such as a reduction in the effective space for placing articles, which is particularly required in a transport truck, or a decrease in payload due to an increase in the weight of the truck.

[Brief explanation of the drawing]

Fig. 1 is a side view of the carrier according to this invention, Fig. 2 is a plan view with the loading table omitted (view taken along the - line in Fig. 1), and Fig. 3 is a sectional view taken along the - line in Fig. 2. , FIG. 4 is a cross-sectional view taken along the same line, and FIG. 5 is a vertical cross-sectional view of the upper part of the frame showing another embodiment. 1...Main frame, 1a...Upper frame,
2... Transport truck, 16... Square pipe, 18... Frame plate, 22... Oil hole, W... Article.

Claims (1)

[Scope of utility model registration request] 1. A transport trolley, characterized in that a frame plate on the top surface of the main body is provided at an angle, and the frame itself on the top of the main body serves as an oil pan.