JPS6245968Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a mounting trolley.

The mounting trolley crawls under the floor of the vehicle while carrying the equipment to be attached to the underfloor of the vehicle, and then lifts the equipment mounted on the trolley upwards and presses it against the underfloor of the vehicle. Equipment placed on the underfloor of a vehicle is attached to the underfloor using bolts or the like.

In conventional mounting carts, in order to lift the equipment upward, the rod end of the cylinder device fixed to the cart was pushed down, and the reaction force pushed the equipment up along with the cart. As the cylinder device, an inexpensive and common structure was used. Since cylinder devices with a general structure usually do not have a rotation stopper,
The rod end had rotated, making the lifted cart unstable. In addition, when the cart moves up and down, the collar of the wheel of the cart comes off the rail of the cart, so if a horizontal force is applied to the cart, the cart will shift and come off the wheels, and the wheels of the cart will run again. The drawback was that it was difficult to lower it onto the rail.

The purpose of the present invention is to eliminate instability such as displacement of the mounting cart when it is pushed up.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 4. As shown in FIG. 1, wheels 5 of a truck 4 are mounted on running rails 3 extending below a vehicle 2 to which equipment 1 is to be attached. A large number of balls 7 supported by plates 6 are provided on the upper surface of the cart, and a loading platform 8 is mounted on top of the balls 7.

As shown in FIGS. 1 and 2, a rectangular cylindrical bracket 10 is vertically fixed to the frame 9 of the truck 4 directly above the running rail 3. As shown in FIGS. As shown in FIG. 2, a screw is machined at the upper end of the bracket 10, and a screw machined on the outer wall of the cylinder of the cylinder device 11 is screwed into this screw, so that the cylinder device 11 is moved downward onto the truck 4. It's attached.

The cylinder device 11 is provided with a return spring 13 in the cylinder chamber that pushes up and down the cylinder rod 12 of the cylinder device 11, and furthermore, a refueling hose 14 from a pressure supply device is attached to the upper part of the cylinder chamber.

A rectangular rod end 15 as shown in FIG. 4 is housed within the bracket 10 so as to be freely movable up and down as shown in FIGS. 2 and 3. This rod end 15
is fixed to the lower end of the cylinder rod 12. As shown in FIGS. 2 and 3, the rod end 15 is provided with a stopper 16 on one side that extends downward. The stopper 16 may extend downward on both sides.

In this embodiment, the equipment 1 mounted on the loading platform 8 is moved by the vehicle 2 by the trolley 4 running on the running rail 3 with the wheels 5 to a position below the vehicle 2.
Climb below. While the truck 4 is running, the cylinder rod 12 is moved by the force of the return spring 13.
is raised, and the rod end 15 is separated upward from the traveling rail 3, as shown in FIG.

After the trolley 4 crawls under the vehicle 2,
Oil is supplied into the rail device 11 from the oil supply hose 14. In this way, the cylinder rod 12
protrudes downward against the return spring 13. As a result, the rod end 15 hits the running rail 3 as shown in FIG. 3, so the entire truck 4 rises and the equipment 1 is pressed against the underside of the floor of the vehicle 2. At this time, the loading platform 8 is moved in a plane using the degree of freedom of rotation of the ball 7, and the mounting position of the equipment 1 and the vehicle 2 is adjusted.

When the entire truck 4 is pushed up, the wheels 5 float from the running rails 3 and become unstable, being liable to shift when subjected to horizontal force. However, in this embodiment, the stopper 16 of the rod end 15 faces the side of the running rail 3 as shown in FIG.
Even if a horizontal force is applied to the vehicle, the stopper 16 hits the traveling rail 3, and the cart 4 is prevented from shifting due to the horizontal force. Therefore, the wheel 5 will not shift laterally from directly above the running rail 3 and will not come off the wheel. Then, install cylinder rod 12 as is.
By retracting upward, the wheels 5 are reliably mounted on the traveling rails 3, and the cart 4 can be returned. In addition, since both the bracket 10 and the rod end 15 are rectangular, the rod end 15 is
does not rotate freely, and the stopper 16 reliably faces the side of the running rail 3.

In this embodiment, since the cylinder device 11 itself is assembled with the bracket 10 so that it can be screwed freely, the cylinder device 11 can be moved up and down by screw feeding, and the cart 4 can be moved up and down by the amount of this vertical movement. Increases and decreases in volume can be achieved without replacing the cylinder device 11.

Furthermore, since the traveling rail 3 is used as a landing surface for the rod end 15, maintenance of the foundation surface is not required.

When the pushed-up truck 4 is lowered onto the running rail 3, this is achieved by stopping the supply pressure to the cylinder device 11 and pushing up the cylinder rod 12 with the return spring 13.

As described above, according to the present invention, even if the wheel of the cart is lifted off the running rail by lifting the mounting cart, the rod end with the stopper lands on the running rail to maintain the stability of the cart and prevent the cart from coming off the wheels. This has the effect of preventing such things from happening.

[Brief explanation of the drawing]

Fig. 1 is an overall view of a mounting cart according to an embodiment of the present invention, Fig. 2 is an enlarged cross-sectional view of the main parts of the mounting cart shown in Fig. 1, and Fig. 3 is an illustration of the cylinder device shown in Fig. 2. A sectional view showing the state during extended operation,
FIG. 4 is an enlarged perspective view of the main part of FIG. 2. 4... Trolley, 5... Wheel, 8... Loading platform, 9
...Truck frame, 10...Bracket, 11...
...Cylinder device, 12...Cylinder rod,
13...Return spring, 14...Hydraulic hose, 15...
...rod end, 16...stopper.

Claims (1)

[Scope of utility model registration request] The cylinder device is attached to a trolley that runs on rails so that the cylinder rod faces downward, and is placed directly above the rail. A lifting device for a mounting trolley, comprising a rectangular rod end provided with a stopper facing the side of the rail and freely movable up and down, and a lower end of the cylinder rod attached to the rod end.