JPS58180335A - Mounting and removing device of sheet to truck load bed - Google Patents

Abstract

PURPOSE:To automatically perform coating and removing of a sheet on a truck load bed, by telescopically operating and turning a pair of struts. CONSTITUTION:If a suitable amount of earth and sand is loaded onto a load bed 2, each strut 10 of a device 1 is extended, and a chain wheel 13 of an angular cylinder 10a in a root side is driven to move a chain 12 in the direction A, preferably to simultaneously operate to retract a hydraulic cylinder 20 and turn each strut 10. Accordingly, the strut 10 is extended while tilted toward the horizontal state. After it has reached the most extended state it is lowered to a horizontal position. In this way, if each strut is extended, also a sheet supported by the strut 10 and transverse material 11 is spread to cover the earth and sand on the bed 2.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a seat attachment/detachment device that is capable of automatically attaching and detaching a seat to and from the trunk of a truck for transporting earth and sand, commonly referred to as a "dump".

For example, loading earth and sand onto the platform of a dump truck, etc. 1. When transporting by car, the earth and sand on the loading platform must be firmly covered with a sheet. Conventionally, such sheets were attached and/or removed by hand, but attaching and removing the sheets was a laborious and time-consuming process. This was a factor that hindered the efficiency of transporting soil, etc.

The present invention solves the above-mentioned problems, and an object of the present invention is to provide a notebook attaching/detaching device that can automatically attach and detach a seat to and from a cargo bed of a trunk. That's true.

A feature of the notebook attaching/detaching device according to the present invention is that it is capable of attaching and detaching 7 notes by means of a pair of telescopic supports that can extend almost the entire length of the trunk. Examples of the invention will be described.

FIGS. 1 and 2 show a seat attaching/detaching device (1) according to the present invention.
) is installed on the loading platform (2) of a truck, and as shown, this device (1) includes a pair of telescoping columns (10), and each column θ0) is attached to the loading platform (2). 2)
at the front end of the trunk, i.e. at the end of the trunk bed close to the cab (3) of the trunk, with one strut (10) on one side of the front end of the trunk and the other strut (10) on the other side. Placed. Each support column (10) is installed at the same height and at an appropriate height position. Although its height is not particularly limited, it is usually at approximately the same height as the upper edge of a shroud (4) provided around the truck bed. A cross member (II), which is generally a rod-shaped member, is attached between the tips (or upper ends) of each support column (10). That is,
A cross member (like a cross member) is fixed to the tip of each column (10) at both ends so as to connect the tips of each column (10) to each other. Although omitted in Figures 1 and 2, the truck bed (
The sheet (5) used for covering 1.2) is attached to the column 00) on both sides of the sheet, and one end, ie the sheet 1. In the open position, the rear edge is attached like a cross member). Furthermore, this device (+1) includes a device (20) for rotating the column (10).

A pair of struts (00) are constructed in the same way, each strut (10)
It consists of multiple rectangular tubes that fit together. In the illustrated embodiment, each support column (10) is composed of six rectangular tubes (10a), (10b), and (]Oc), as shown in FIG. A flexible transmission member and an appropriate number of wheels are molded into the rectangular tube in order to expand and contract each strut.

In this embodiment, a chain 02) is used as the transmission member, and a chain wheel is used as the wheel.

Two chain wheels are provided in each rectangular tube other than the most advanced rectangular tube (]Oc).
]Oa) and the next second rectangular tube (10b), so each column has four chain wheels (13), (
14), (15), and (16). Therefore, in general n
If the support (10) is constructed from square tubes, (n-1)
X2 chain wheels are provided on the pillar. Each chain wheel is provided near the end of each rectangular tube. The sixth square tube at the tip (10
c) A stop plate 01 is fixed to the end on the base side, and both ends of the chain (12) are attached to the end on the base side of the square tube (10c).
In this embodiment, each is fixed to a stop plate (17), one end (12a) thereof extends toward the tip, and the other end (], 2
b) is fixed so as to extend in the opposite direction.

As clearly shown in FIG. 6, the chain (12) extends upward in the figure from one end (12a) and extends downward around the chain wheel (16) on the tip side of the second square tube (Job), The chain extends upward around the chain wheel (l) on the root side of the second rectangular tube, extends downward around the chain wheel I on the tip side of the tenth rectangular tube (10a), and extends downward around the chain wheel I on the tip side of the 10th rectangular tube (10a). Car (13
) and extends in two directions around the end (
12b).

Figure 6 shows the post (10) in the middle of expansion and contraction, but if the chain wheel (13) is rotated 17 and the chain (12) is moved as shown by arrow A in Figure 6, the end of the chain can be moved. The part (12a) is the chain wheel (
16) as a fulcrum, the chain part on the opposite side (],
2c) in the direction of arrow B, so that the sixth rectangular tube (10c) is pulled out from the second rectangular tube (10b). The chain wheel (15) on the base side of the second rectangular tube (10b) is the chain wheel 04 on the tip side of the first rectangular tube (10a).
) as a fulcrum, the chain portion (12d) is pulled up by movement in the C direction, so that the second square tube (10b)
is pulled out from the first square tube (10a), so the column (
lO) increases. If the chain (12) is moved so that the chain wheel (13) is rotated in the opposite direction of arrow A, the chain portion (12e) is moved downward and the chain portions (12d) and (12c) are rotated upward. By being pulled out, the stop plate (17) is pulled downward and degenerates. FIG. 4 shows the most contracted state, and FIG. 5 shows the most expanded state. Although not shown in the figure, the most expanded, twisted, or contracted position is determined by a stopper. In the figure, (18) is the ten/yong of chain (12): JA+
It is a chain wheel for maintenance. (19) is a pin for pivoting the support (■0), and is provided on the base (6) by the platen l-(19a).
10) is fixed in place on the track.

Each column (10) is rotated approximately 90 degrees from a vertical position to a horizontal position by a rotation device (20) which is preferably a hydraulic sill as shown.

In the case of hydraulic shilling, its 7171 part (21) is the first
The piston rod (2
The tip of the column 2) is connected to the base (6), and as shown in FIG. As shown in Figures 1 and 6, when the shilling (20) is extended, the column (10) is tilted vertically, and when it is contracted, it is tilted horizontally. Needless to say, the present invention is not limited to a solinter, and can be easily constructed by, for example, a combination of a pinion and a rack driven by a motor, or a combination of a worm and a gear.

It is preferable that the sheet (5) used in this /-t attaching/detaching device has some degree of elasticity, so a rubber string is stretched vertically or diagonally on either side of /-1. It is preferable that Further, support the both sides of the seat (5) (
10), it is preferable that both sides of the seat be formed into a cylindrical shape as shown in FIGS. 7 and 8.
In that case, the column (10) is covered by the cylindrical portion (5a) of the seat.

Although not shown in the figure, the chain wheel (I3) of the first rectangular tube (10a) is driven to move the chain (12), and its axis is (13a
) is connected to a drive, such as a hydraulic motor or an electric motor, or to a transmission or drive mechanism of the truck.

Next, the operation of the above embodiment will be explained. When the truck bed (2) is not loaded with earth and sand, each support (1o) is vertical in a contracted state, as shown in FIG. In this state, when an appropriate amount of earth and sand is loaded on the loading platform (2) and shaped, the chain wheel (I3) of the rectangular tube (10a) on the base side is moved in order to extend each support (10) of this device (1). is actuated to move the chain (12) in the direction of arrow A, preferably at the same time actuating to retract the hydraulic sill (20) to rotate each strut (10). Therefore, the pillar (1
0) tilts toward the horizontal state while extending, and after reaching the most extended state, descends to the horizontal position.

(1') in Figure 1 shows an intermediate stage, and (1')
) shows the state in which the support column (10) is horizontal and lowered. When each pillar (10) extends in this way, the pillar (1
0) and the sheet (5) supported on the cross member (11)
It is also spread out and covers the earth and sand on the loading platform (2). Figures 9 and 10 show the seat (5) covering the dirt on the truck bed (2), and the dotted line (5b) in the figures is a rubber cord.

In addition, when the sheet (5) is attached, each support column (
10) is in contact with the upper edge of the shroud (4) around the loading platform.

When removing the seat (5), first use the hydraulic sill” (20).
Lift up the column 00) and the cross member (11) to a certain extent, then rotate the chain wheel (13) in the opposite direction to the front, pivot upward while retracting each column (10), and completely retract it. Reduce it with 9- and make it vertical. Along with that, n-1- (5)
The notebook also folds and bends due to the rubber straps etc. attached to it.
It is housed between the pillars (10). This hydraulic shilling” (
It goes without saying that the operation of the chain wheel 201 and the drive device of the chain wheel (13) for moving the chain (1 [F]) can be performed inside the cab of the truck.

In the above embodiment, each support column (10) is composed of six rectangular tubes, but the same structure can be used when it is composed of other numbers of rectangular tubes, and the number can be arbitrarily selected.

In the example above, one chain is used in each column as the transmission member, but instead of a chain, a pair of lobes or wires (12') can be used, in which case the chain wheel It goes without saying that a pulley can be used instead, but instead of a pulley, a pair of winding drums (13b) are installed on the base side of the first rectangular tube (]Oq) of each support as shown in FIG. , (13c) are used, and when one of the drums is used to wind up the lobe or wire, the other drum is configured to be rotatable.0 As described above, according to the present invention, the 10- Since it is possible to attach and remove the seat on the trunk loading platform by expanding, contracting and rotating it, the attaching and removing of /-1., which was conventionally done manually, can now be done in the driver's cab. This can be done automatically by operating the Therefore, the efficiency of transporting earth and sand etc. by trucks can be significantly improved.

[Brief explanation of drawings]

Figure 1 is a side view of the /-1 detachable device according to the present invention attached to the trunk, Figure 2 is an end view of it as seen from the rear, and the sixth direction is a telescopic device according to an embodiment of the present invention. Fig. 4 is a side view showing the internal structure of the support column; Fig. 4 is a view showing the device of the embodiment shown in Fig. 6 in a contracted state;
．． Figure 6 is a partial side view showing the operating state of the rotating device for the pillars, Figure 7 is a front view of the /-t installed between the pillars, and Figure 'S8 is Figure 7. A cross-sectional view taken along line XX,
9 and 10 are a side view and a plan view of a truck bed with a sheet attached thereto, and FIG. 11 is a partial vertical sectional view of a support column showing another embodiment. In the diagram, 2.. Loading platform, 5. Seat, 10.. Support, 11.
・Side down, 12... Transmission member, 1 roll, 14.15.16 wheel, 20... Rotating device patent applicant Details Hiroshi Kinu Figure 5

Claims (1)

[Scope of Claims] (1) A pair of telescoping columns pivoted at appropriate height positions on both sides of the front end of the loading platform, and a cross section formed in several cases between the tips of the pair of columns. The sheet of the deck that covers the truck bed is attached to the pillars on both sides and to the cross member at one end, and each pillar is made of a plurality of rectangular tubes that are fitted into each other. An end of a transmission member described later is fixed to the end on the root side of the most advanced rectangular tube, and a pair of wheels are rotatably provided in each of the rectangular tubes other than the most advanced rectangular tube. A flexible transmission member is hung on the wheel, and the support column is connected to the
A device for attaching and detaching notebooks to the truck bed, including a rotating device that rotates 0 degrees. (2. The device according to claim 1, wherein the wheel and the transmission member are a chain wheel and a chain. (6) The device according to claim 1. In the device of
The transmission member is a rope or a wire, and the wheel on the root side located in the rectangular tube at the rootmost side of each of the pillars is a winding drum for the wire; is a pulley that attaches/detaches to/from the truck bed. (4) In the device according to claim 1,
The rotation device is a device for attaching and detaching the seat to the truck bed, which is composed of a hydraulic printer.