JPH01223039A - Discharge device for motor-lorry - Google Patents

Abstract

PURPOSE:To eliminate or ease the exchange of a scraper due to abrasion by attaching many connecting rods between right and left chains with fore and aft intervals provided, and also detachably providing a scraper having sliding surfaces on the upper and lower parts respectively to each connecting rod. CONSTITUTION:A discharge device 4, installed on the inner bottom part of the cargo box placed on the upper part of a body, is composed with a pair of sprockets 5 arranged at the front and rear of the cargo box and also with a pair of endless chains 6 rotatably wound on the floor plate 7 of the cargo box between each sprocket 5. And the front sprocket 5 is made to rotate with a drive source attached to the body. In this case, connecting rods 10 of which both their ends are fixed to the chains 6 with bolts 9 are arranged between each chain. And a scraper 11 having sliding surfaces 12 and 13 on the upper and lower parts is provided to the rods 10. This enables the exchange of the scraper 11 due to abrasion to become unnecessary or to be easily made alternate ly using the upper and lower surfaces 12 and 13 with the scraper 11 reversed.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a discharge device for a freight vehicle equipped with a discharge device for automatically discharging a load housed in a cargo box.

(b) Conventional technology Conventionally, the ejection device for freight cars
As shown in No. 15, the scraper (10) that catches the load in the cargo box (1) and discharges it rearward is formed with a concave cross section, and the master scraper (10) is connected to the connecting g.
(9) to bolt (13) ----- one and nut (u)
= -fm- is fixed.

(C) Problems to be Solved by the Invention Since the scraper (lO) is formed in a concave shape, the only surface that slides with the floorboard (7) is the lower surface, and when the lower surface of the scraper (lO) wears out, New scraper (lO
) and when replacing the scraper (lO), the bolt (13)---m- and nut (
14') had to be removed, which was very troublesome.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to eliminate the need to replace the scraper with a new one even if the lower surface of the scraper wears out, and to enable smooth replacement of the scraper.

(d) Means for Solving the Problems In order to achieve the object F, this invention provides a pair of endless chains on the left and right sides of a packing box, a driving means for driving the endless chains, and a drive means for driving the endless chains. A plurality of connecting culms are installed with front and rear intervals in between, and the connecting culms are removably provided with a scraper having a sliding surface that can slide on the floorboard of the cargo box up and down as well as internally containing the connecting culms. It is characterized by:

(e) If the sliding surface under the working scraper is worn, remove the connecting culm from the chain.

After that, the connected culm is extracted from the scraper.

Next, insert the connecting culm with the sliding surface of the scraper hill facing down, and then attach the connecting culm to the chain.

(f) Examples Hereinafter, examples of the present invention will be explained based on the drawings. (
1) is a cargo box mounted on the vehicle body (2), and this cargo box (1)
) is open for loading cargo, and a double door (3) (3) is provided at the rear for opening and closing the discharge port.

+iii A discharge device (4) is provided at the bottom of the storage box (1) for discharging the loaded object to the rear.

Next, the ejection device (4) will be explained with reference to FIGS. 3 to 5. Tin rockets (5) (5) are provided before and after the cargo box (1), and the The endless chain (8) (El) is rotated, and the chain (8) (8) moved upward moves on the floor plate (7) L of the cargo box (1).

The front sprocket (5) is rotated by a drive source (8) attached to the vehicle body (2), and the chain (Ei) (8) is moved rearward by rotation of the front sprocket (5). .

Between the left and right chains (6) and (B), a connecting culm (10) of square rods with both ends fixed to the chains (θ) (6) (9) (9) is provided. , this connected culm (10
) -------- is installed in multiple pieces at appropriate intervals in the front and back.

Reference numeral (11) denotes a scraper incorporating the connecting culm (lO), and this scraper (11) is made of waste plastic and has a rectangular cross section, and has sliding surfaces (12) and (13) on the upper and lower sides. In addition, the scraper (11) is attached to the connecting culm (10
) and the sliding surface under the scraper (11) (
13) is in contact with the floor plate (7), and even if the upper sliding surface (12) is installed downward, the floor plate (7)
It is designed to touch the top.

Figure 6 shows another embodiment of the scraper (14), which has a connected culm (
15), it is formed into a square cross section, and has sliding surfaces (18) (17) (1B) (19) on the top, bottom, left and right sides.
)have.

The present invention has the above-mentioned configuration. Next, the operation will be explained. First, when transporting and discharging a loaded object, I
n(3) With (3) closed, load the load from one side of the cargo box (1).

After the loaded items are stored in the packing box (1), they are transported to the discharge location.

After opening the door (3) (3) at the discharge location, the drive source (8)
to drive the pair of chains (8) and (13).

A plurality of scrapers (
11) ------ moves rearward, and the front scraper (11) catches the load accumulated on the floorboard (7) and discharges it rearward.

At this time, since the sliding surface (13) under the scraper (11) slides on the floor plate (7), it is possible to eliminate the remaining load.

Next, if the sliding surface (13) under the scraper (11) is worn, remove the (9) (9).

Pull out the connected culm (lO) from the scraper (11).

Then, after inserting the connecting culm (10) with the E sliding surface (12) of the scraper (11) facing down, insert the bolt (9).
(9) II: Eat.

Also, if the connected culm (lO) is made vertically symmetrical, the connected culm (lO
) from the scraper (11), but instead install it upside down.

(g) Effects of the invention As described above, the present invention has a connecting culm built into the scraper so that it can be attached and detached, and sliding surfaces that can slide on the floorboard of the cargo box are provided above and below the scraper. Even if the sliding surface becomes worn, the upper sliding surface can be used and there is no need to replace it with a new scraper.

Furthermore, the connecting culm only needs to be inserted into the scraper, making it easier to replace the scraper than the conventional method of attaching with bolts and nuts.

[Brief explanation of the drawing]

FIG. 1 is a side view of a freight vehicle equipped with the present invention, FIG. 2 is a rear view of FIG. 1, FIG. 3 is an enlarged view of the main parts of the present invention, and FIG.
The figures are a cross-sectional view taken along the line AA in FIG. 3, FIG. 5 is a cross-sectional view taken along the line B-B in FIG. 4, and FIG. 6 is a cross-sectional view of another embodiment corresponding to FIG. 5. (1) is a packing box, (4) is a discharge device, (6) is a chain,
(7) is a floor plate, (10) is a connecting culm, (11) is a scraper, and (12) and (13) are sliding surfaces.

Claims (1)

[Claims] A pair of endless chains is provided on the left and right sides of the packing box, a driving means for driving the endless chains is provided, a plurality of connecting rods are attached with front and rear intervals between the left and right chains, and the connecting rods include: A freight car discharge device comprising a detachable scraper which is equipped with a connecting rod and has a sliding surface that can slide upward and downward on the floorboard of a cargo box.