JPS5927313Y2 - Strut tipping device for the loading platform of a transport vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a support support overturning device for a carrier vehicle such as a lumber carrier.

This type of conventional loading platform overturning device is shown in Figures 1 and 2.
As shown in Fig. 3, one end of the rope b is locked to one side of the loading platform a, and this rope b is inserted through the ring d of the support column C, and then through the ring e on the other side of the loading platform a. Then, the other end of the rope b is locked to the attachment ring f, and this attachment if is engaged with a lever i swingably provided on the bracket g of the loading platform a. It was for J.

If you want to bring down the support C, remove the stone pin j, tap the tip of the lever i with a 7 mm to loosen the rope b, and use the lateral load from the log to bring down the support C.

This caused the following problems.

(1) When erecting prop C, a worker had to move to the opposite side of the vehicle to secure it with rope b after it was erected, and two workers were required.

(2) Because rope b moves, each time the support C is erected, the rope b must be thrown out from the opposite side and fixed, which is troublesome and can be dangerous in some cases. It had become.

(3) Lever i could easily break or break due to hitting with a hammer, and since it was not possible to leave a large gap in the loading platform a, it was difficult to hit with a hammer, and a large amount of force was required in this case.

The present invention was developed in view of the above circumstances, and its purpose is to eliminate the need to move to grab the rope, and to eliminate the need for movement by the person who is erecting the support, while requiring a large amount of force to bring down the support. An object of the present invention is to provide a support support overturning device for a carrier vehicle that does not require the following steps.

Hereinafter, the present invention will be explained with reference to FIG. 4 and subsequent figures.

1 in the drawing is a loading platform, and pins 2 are attached to both ends of this loading platform 1.
A support column 3 is attached so as to be able to fall freely, and the support column 3 collides with a stopper 4 in a position perpendicular to the loading platform 1, that is, in an upright position.

Guides 6 are provided protruding from both sides of the loading platform 10.

Further, a bracket 1 is fixed to the lower surface of the loading platform 1, and a lever 8 is attached to the bracket 7 with a pin 9.

A locking body 10 is provided at one end of the lever 8.

A ring body 11 is fixed to the support column 3, a rope 12 is inserted through the ring body 11, the rope 12 is placed along the guide 6, and both ends of the rope 120 are connected to the locking body 10. It is locked.

A hook 13 is swingably provided at the bottom of the column 3.

A retaining portion 14 is formed at the other end of the lever 8 and is removably engaged with a hook 13.

Further, the loading platform 1 is provided with a limit switch 22' which is opened and closed by the support column 3.

15 in the drawing is a lever holding mechanism.

This lever holding mechanism 15 is attached to the bracket 1 of the frame 16.
1 is provided with a stopper lever 19 attached with a pin 18, and a stopper lever 20 is attached to one end of the stopper lever 19.

The rond side of an air cylinder 21 is connected to the other end of the stopper lever 19, and the air cylinder 21 is connected to the frame 1.
It is installed on 6th.

What is shown in FIG. 6 is an operating circuit, and this operating circuit R is equipped with a solenoid valve 22, and a bow 22a of the solenoid valve 22 is connected to an air tank 22 through a pipe 23.
is familiar with

Bows of the solenoid valve 22) 22b and 22c are the piping 2
It is connected to the air cylinder 21 via 5 and 26.

One terminal of the solenoid 21 of the solenoid valve 22 is connected in series with a limit switch 22' with respect to the battery 28, and one end of the solenoid 2γ is connected in series with a manual switch 29 with respect to the pantry 28.

Next, the operation will be explained.

If you want to put up pillar 3.

The solenoid 27 is energized by the normally closed limit switch 22', the position opening of the solenoid valve 22 is located on the boat side, the air cylinder 21 is extended, and the stopper lever 19 is located downward.

At this time, when the prop 3 is erected and the hook 13 is hooked to the engaging part 14 of the lever 8, the lever 8 is automatically moved, the rope 10 is tensioned, and when the prop 3 is upright, the mint switch 22' is switched to the de-energized state. As a result, the solenoid valve 22 is moved to the boat side position by the operation of the solenoid 2T, the air cylinder 21 is operated to the contraction side, the stopper lever 19 is rotated counterclockwise, and the stopper lever 20 is rotated counterclockwise.
collides with the lever 8 from above and holds the lever 8 in this state.

When knocking down pillar 3.

Operate the manual switch 29 to energize the solenoid 2γ of the solenoid valve 22. Due to the operation of the solenoid 2γ, the position opening of the solenoid valve 22 is positioned on the boat side, and the air cylinder 21 is extended to release the stopper lever 1.
9 in the clockwise direction, and move the stone bar 20 to the lever 8.
Remove it.

Pillar 3 collapses naturally due to the lateral load from the log.

The present invention has been described in detail above, in which the lever 8 is swingably provided on the loading platform 1, the guide 6 is fixedly installed on the loading platform 1, and the rope 12 inserted through the ring body 11 of the support column 3 is attached to the guide 6. An engaging portion 141 is engaged with one end of the lever 8 after being hooked, a hook 13 is swingably provided on the support 3, and the hook 13 is removably engaged with the other end of the lever 8. Lever 8 to 16
A stopper lever 19 is provided to rotate and hold the lever 8 that hits the end of the frame 10 from above toward the tension side of the rope 10.
6 is provided with an air cylinder 21 for full rotation of the stopper lever 19, a limit switch 22' which is normally closed and opened by the support column 3 is provided on the loading platform 1, and the solenoid 21 of the solenoid valve 22 of the operating circuit R of the air cylinder 21 is provided. is connected in series with the limit switch 22' for the panteri, and the solenoid 21 is connected in series with the manual switch 29 for the panteri, so it is sufficient to operate only the side where the prop 3 is raised, and the rope 10 is removed. There is no need to move for this purpose.

Further, the support column 3 can be pushed down by operating the manual switch 29 without requiring much force, and since the manual switch 29 can be installed at any location, it can be operated from a safe location such as inside the cab.

[Brief explanation of drawings]

Fig. 1 is a side view of the transport vehicle, Fig. 2 is a plan view of a conventional loading platform overturning device, Fig. 3 is a plan view, and Fig. 4 is a plan view of the present invention.
A partially omitted plan view of the embodiment, FIG. 5 is a view taken from the direction of arrow V in FIG. 1, and FIG. 6 is an operating circuit diagram. 1 is the loading platform, 3 is the support, T is the lever, 10 is the rope, 22
' is a limit switch, 19 is a stopper lever, 21 is an air cylinder, 22 is a solenoid valve, and 29 is a manual valve.

Claims (1)

[Scope of utility model registration request] A lever 8 is swingably provided on the loading platform 1, and a guide 6 is installed on the loading platform 1.
The O-pipe 12 inserted through the annular body 11 of the support column 3 is hung on the guide 6 and then locked to one end of the lever 8.
A hook 13 is swingably provided on the frame 16, and an engaging portion 14 with which the hook 13 is removably engaged is provided on the other end of the lever 8. A lever 19 that rotates and holds the rope toward the tension side of the rope 10
An air cylinder 21 is provided on the frame 16 to operate the rotation of the stop lever 190, and the support 3 is normally closed on the loading platform 1.
A limit switch 22 is provided, which connects the limit switch 27 of the control circuit R of the air cylinder 21 to the limit switch 22 in series with the limit switch 22, and connects the limit switch 27 of the control circuit R of the air cylinder 21 to the limit switch 22 in series with the limit switch 22. A transport vehicle loading platform overturning device characterized by being connected in series.