JPH0336562Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a connecting device for a floor slab or the like of a road repair vehicle.

(Prior Art) Conventionally, as shown in FIGS. 6 and 7, a work vehicle consisting of a plurality of modules equipped with a floor slab 1 is connected,
A road repair vehicle has been proposed that covers the top of the road repair area to form a temporary road and repairs the road at the bottom of the slab 1 without interfering with road traffic. The concrete proposal for the connection between each module is insufficient.

(Problem that the invention aims to solve) Even if road repair vehicles are gathered on a road that requires repair, unless the road repair vehicles are quickly and reliably connected to form a temporary road, the road will be destroyed. There is a problem in that the vehicle obstructs traffic, causes traffic congestion, and cannot achieve its purpose as a road repair vehicle.

(Means for Solving the Problems) The present invention addresses the above-mentioned problems by connecting a plurality of road repair vehicles each equipped with a floor slab and a driver's seat so as to be movable in the front and rear directions. In this connection device for a road repair vehicle, a hook connected to the driver's seat is pivotally connected to a protrusion at the front end of a floor slab of the vehicle via a hooking and unhooking mechanism, and a hook connected to the driver's seat is pivotally connected to a protrusion at the front end of a floor slab of the vehicle. A hook receiver is provided along the bottom plate of the notch at the rear end of the floor slab of the repair vehicle located in front, and engages with the other end engaging portion of the same hook, and is biased in the traveling direction of the vehicle and in the opposite direction, respectively. A hydraulic cylinder is provided, which is connected to the hook receiver through two compression springs, and moves the hook receiver forward when the hook and the hook receiver are connected, and backward when the hook is opened, and the hydraulic cylinder and the hook are connected to each other. The connecting device for a road repair vehicle is characterized in that it is configured to be remotely operated from the driver's seat, and its purpose is to allow the operator to remotely operate the connecting part from the driver's seat without touching the connecting part. An object of the present invention is to provide a coupling device for road repair vehicles that can be coupled more quickly.

(Operation) When the front end of the floor slab of a road repair vehicle placed at the rear is pressed against the rear end of the floor slab of a road repair vehicle placed in front, the hook at the front end of the floor slab of the rear vehicle rotates up and down. and engages with the hook receiver at the rear end of the floor slab of the vehicle in front. In this state, if the hook receiver of the vehicle in front is pulled, the vehicles in front and behind will be connected.

Disconnection of the vehicle is performed by the reverse procedure of the above-mentioned coupling operation.

(Example) Next, the coupling device for a road repair vehicle of the present invention was
This will be explained using an example shown in FIGS. 1 is the floor slab, which has the same configuration for all vehicles and is supported so that it can run on the lower traveling device, and when the front and rear floor slabs are connected, one substitute road is created, and the upper surface has a thin layer of pavement. It is made of a steel plate with a thickness of 25 to 30 cm and a width of about 3 mm, and the front end has a protrusion 2 as shown in Figure 2.
, the bottom surface 3 of the protrusion 2 forms a slope that rises slightly forward, and the rear end of a hook 4 that can be retracted into a hole in the bottom surface 2 is pivotally connected to the floor slab 1 via a pin 5, A link 6 having a long hole that pulls the hook 4 upward connects the hook 4 and one end of a bell crank 7 pivotally supported on the floor slab 1, and the other end of the bell crank 7 is connected to the link 8. The link 8 is connected to an output piston of a hydraulic cylinder (not shown) provided in the vehicle, and the hydraulic cylinder is equipped with a solenoid valve (not shown) that controls the supply and discharge of hydraulic oil to the hydraulic cylinder. Furthermore, the solenoid valve is configured to be opened and closed by a driver's seat attached to the vehicle.

That is, the hook 4 is constructed so that it can be remotely operated from the driver's seat via a hooking/unhooking mechanism consisting of a link 6, a bell crank 7, a link 8, etc., and a hydraulic drive device consisting of a hydraulic cylinder, a solenoid valve, etc.

Further, a switch 9 is provided which is connected at a predetermined position where the hook 4 is depressed, and a rubber cushion 10 is attached to the tip of the protrusion 2 of the floor slab 1.

In addition, a notch 11 is provided at the rear end of the floor slab 1,
The notch 11 has substantially the same shape as the front protrusion 2, and the slope of the bottom plate 12 is also substantially the same as the slope of the bottom plate 3. Further, a cross beam 13 is provided at the rear end of the floor slab 1, and a hook receiver 14 is provided adjacent to the cross beam 13 so as to be movable in the front-rear direction.
is provided with a recess 14a that engages with the protrusion 4a of the hook 4, and a link 16 is pivotally supported at the front end of the hook receiver 14 via a pin 15.
6 passes through the hole at the rear end of the frame 17, and the link 16
A flange 16a is provided at the front end of the link 16, and a compression spring 1 is provided between the frame 17 of the link 16 and the hook receiver 14.
8 is inserted, a compression spring 19 is inserted between the flange 16a of the link 16 and the rear end of the frame 17, the frame 17 is guided by a guide 20, and a piston 21 is inserted in the front of the frame 17 A hydraulic cylinder 2 in which the piston 21 is inserted
2 is fixed to the lower surface of the floor slab 1.

Next, the operation of the coupling device for the road repair vehicle will be explained.

The leading end of the rear vehicle shown in FIG. 2 approaches the rear end of the front vehicle shown in FIG. 1. Then, as shown in FIG. 3, the protrusion 2 of the rear vehicle rides on the notch 11 of the front vehicle. At this point, the hook 4 comes into contact with the upper surface of the hook receiver 14 under its own weight. Then the fourth
As shown in the figure, when the rear vehicle abuts the front vehicle via the cushion 10, the protrusion 4 of the hook 4
When the handle a falls into the recess 14a of the hook receiver 14, the pilot lamp switch 9 is connected and the pilot lamp on the driver's seat lights up, allowing the operator to confirm. Then, when the hydraulic cylinder 22 is actuated to the left, the piston 21 moves to the left. Then, the frame 17 moves the link 16 to the left via the compression spring 19, and the hook 4
The projection 4a and the recess 14a of the hook receiver 14 engage to complete the connection.

At this time, the deflection of the compression spring 19 is made larger than the stroke of the piston 21 of the hydraulic cylinder 22, so that the tensile force of the hook receiver 14 is applied to the compression spring 19.
It is safe because it does not exceed the spring force of .

To release the coupling device, the hydraulic cylinder 22
The piston 21 of is moved to the right. Then, the frame 17 moves the hook receiver 14 to the right via the compression spring 18, and the rear end of the hook receiver 14 comes into contact with the cross beam 13 (the state shown in FIG. 4).

Next, an operator from the driver's seat turns on a solenoid valve (not shown) of the hydraulic drive device to operate the hydraulic cylinder so as to pull the link 8. Then, hook 4 becomes link 8 → bell crank 7
→It is pulled up via the hook 6, the hook 4 and the hook receiver 14 are disengaged, the switch 9 is turned off, and the pilot lamp on the driver's seat goes out, and the vehicle ahead moves forward. When the front vehicle moves away from the rear vehicle, a drive device (not shown) that pulls the link 8 is turned off, and an operating valve (not shown) of the hydraulic cylinder 22 is also turned off.

If the circuit of the switch 9 is connected by a contact between the front vehicle and the rear vehicle provided near the cushion 10, the state of the hook 4 can also be confirmed to the front vehicle without requiring any other communication method. can.

When the hydraulic cylinder 22 is actuated to move the piston 21 to the right, the deflection of the compression spring 18 is made larger than the stroke of the piston 21, and the hook receiver 14 moves the horizontal beam 13 toward the compression spring 18.
It is safe because it does not press more than the spring force.

(Effects of the Invention) The present invention provides a connection device for a road repair vehicle which connects a plurality of road repair vehicles each having a floor plate and a driver's seat so as to be movable in the front and rear directions, as described above. A rear end of a floor slab of a repair vehicle, in which a hook connected to the driver's seat is pivotally attached to a protrusion at the front end of the floor slab via a hooking/unloading mechanism, and the hook is located in front of the vehicle to which the hook is pivotally attached. A hook receiver is provided along the notch bottom plate of the hook and engages with the other end engaging portion of the hook, and the hook receiver is connected to the hook via two compression springs biased in the traveling direction of the vehicle and in the opposite direction, respectively. A hydraulic cylinder is provided which is connected to the hook and moves the hook receiver forward when the hook and the hook receiver are connected, and moves the hook receiver backward when the hook is opened, and the hydraulic cylinder and the hook can be remotely controlled from the driver's seat. This has the effect of allowing the operator to quickly connect the connector from the driver's seat without touching the connector.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal side view showing the rear coupling device of the road repair vehicle coupling device of the present invention, Fig. 2 is a longitudinal side view of the front coupling device of the present invention, and Fig. 3 is a cutout of the front vehicle. Fig. 4 is a vertical side view showing the state in which the protruding part of the rear vehicle is mounted on the rear vehicle, Fig. 4 is a longitudinal side view showing the state in which the hook has fallen into the recess of the hook receiver, and Fig. 5 is a longitudinal side view showing the state in which the connection is completed. , FIG. 6 is a side view of a conventional road repair vehicle, and FIG. 7 is a plan view of FIG. 6. DESCRIPTION OF SYMBOLS 1... Floor slab, 2... Projection part, 3... Bottom plate, 4... Hook, 11... Notch part, 12... Bottom plate, 14... Hook receiver, 18, 19... Compression spring, 22... Hydraulic cylinder.

Claims (1)

[Scope of utility model registration request] In a connecting device for a road repair vehicle that connects a plurality of road repair vehicles equipped with a floor slab and a driver's seat so as to be movable in the front and back direction, a mechanism for hooking and unhooking the vehicle to a protrusion at the front end of the floor slab of the vehicle is provided. A hook connected to the driver's seat is pivotally mounted through the hook, and the other hook is attached along the notch bottom plate at the rear end of the floor slab of the repair vehicle located in front of the vehicle to which the hook is pivotally coupled. A hook receiver that engages with the end engaging portion is provided, and is connected to the hook receiver via two compression springs that are biased in the traveling direction of the vehicle and in the opposite direction, respectively, so that the hook and the hook receiver are connected. A coupling device for a road repair vehicle, characterized in that a hydraulic cylinder is provided to move the hook receiver forward and backward when it is opened, and the hydraulic cylinder and the hook can be remotely controlled from the driver's seat.