JPH0243506Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to the structure of a truck on which a vehicle body divided into a cabin and a loading platform is placed in a painting line for painting and drying vehicle bodies.

(Prior art) In cases where the vehicle body is divided into a cabin and a loading platform, such as a truck, in order to paint these parts, conventionally the cabin and loading platform must be coated on one truck. The carts were then conveyed to the painting line at regular intervals using, for example, a chain conveyor or the like for painting.

The painting line consists of a spraying process in which paint is sprayed onto the car body, and a drying process in which the paint is dried in an oven. In the drying process, the car body mounted on a trolley is passed through a hot furnace to dry it, but fuel is always required to keep the inside of the furnace at a high temperature. In order to reduce fuel consumption, it is desirable to narrow the spacing between the carts so that as many carts as possible can be put into the furnace at once.

From this point of view, it is preferable to make the distance between the cabin on the trolley and the loading platform as narrow as possible; however, if this distance is too narrow, paint will not be sprayed onto the opposing parts during the spraying process. However, there is a problem in that the distance between the cabin and the loading platform cannot be made very narrow.

(Purpose of the invention) In view of the above-mentioned circumstances, the present invention provides a cart structure for a painting line in which the distance between the cabin and the loading platform is such that spraying can be performed during the painting process, and it can be narrowed during the drying process. The purpose is to

(Structure of the invention) The trolley structure of the invention consists of a first trolley on which one of a cabin and a loading platform is placed, and a second trolley on which the other is placed. This vehicle is characterized by being equipped with a slide device that can adjust the position of the second truck in the traveling direction with respect to the first truck.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a front view showing an example of the truck structure of the present invention, in which a first truck 2 is placed on a road surface 1 of a painting line via rotatable rollers 2a and 2b. A cabin 4 is placed at the front of the first truck 2, and a second truck 3 is placed at the rear via rotatable rollers 3a and 3b as a slide device. It is movable on the first cart 2 in the front and rear directions (left and right directions in the figure). A loading platform 5 is placed on this second truck 3, and during the spraying process, a cabin 4 is positioned at the rear as shown by the solid line.
and the loading platform 5 on their opposing surfaces 4a, 5a.
It has an interval "A" that allows sufficient spraying to the
In the drying process, the loading platform 5 is
is moved forward and has a spacing "B" smaller than "A". Note that the first loading platform 2 is moved on the coating line at regular intervals by a chain conveyor as described later.

FIGS. 2A to 2C are a plan view, a front view, and a side view showing in detail the second truck 3 mounted on the rear part of the first truck 2. FIG.

Guide rails 21a and 21b for guiding the rollers 3a and 3b of the second truck 3 are provided on both sides of the rear upper surface of the first loading platform 2, extending back and forth, and in the center, guide rails 21a and 21b for guiding the rollers 3a and 3b of the second truck 3 are provided. Lever 31 for positioning
A locking rail 22 is provided extending back and forth, along which the tip 31a of the locking rail 22 is guided. Inside this locking rail 22, there is a pair of locking guides 23 at the front and rear.
a, 23b are fixed, and stoppers 24a, 24b are fixed at predetermined intervals in front of the lock guide 23a and at the rear of the lock guide 23b, respectively. On the other hand, a positioning lever 31 is disposed on the lower surface of the second truck 3 with one end protruding to the side of the second truck 3 and the other end protruding into the locking rail 22. The end 31a of this lever 31 that protrudes into the locking rail 22 is connected to the locking guide 23.
a, 23b and stoppers 24a, 24b within a predetermined interval, the second trolley 3
is held in the position during the spraying process or in the position during the drying process.

2A and 2B show the second cart 3 in the drying process position, at which time the end 31a of the lever 31 has entered the space between the stopper 24a and the lock guide 23a. The second truck 3 is fixed to the first truck 2.
To move this to the position for the spraying process, lift the end 31a of the lever 31 and remove it from between the stopper 24a and the lock guide 23a, then move the second cart 3 backward (to the right in the figure). The end portion 31a is moved between the stopper 24b and the lock guide 23b. Note that at this time, it is not necessary to always lift the lever end 31a; once it is removed from between the stopper 24a and the lock guide 23a, the end 31a can be lifted by simply moving the second cart 3 backwards. It is lifted along the upper slope of the lock guide 23b and enters between it and the stopper 24b. It goes without saying that the vertical movement of the lever end 31a may be performed manually or automatically.

Figure 3 is a front view showing the state in which a plurality of carts are conveyed at regular intervals on the road surface 1 of the line by a chain conveyor, etc. in the spraying process of a painting line, and Figure 4 shows the conveyance state in the drying process. It is a front view.

In the spraying process, the second cart 3 is positioned at the rear, and the distance between the cabin 4 and the loading platform 5 is set to the distance "A" necessary for spraying, and the opposing surfaces 4a and 5a of both can also be sprayed, and the drying process is performed. In this case, the second truck 3 is positioned at the front, and the distance between the cabin 4 and the loading platform 5 is set to a distance "B" which is narrower than the above-mentioned distance "A". The required space between each truck is "D" for the spraying process and "E" for the drying process, including the required minimum distance "C" between the rear end of the loading platform 5 and the front end of the adjacent cabin 4. Since A>B, D>E, and the space required for each cart in the drying process can be reduced.

To give a specific example, the spacing "A" in the spraying process needs to be about 0.6 to 0.8 m, and the spacing "B" in the drying process can be about 0.05 m, so the required space for each cart is about 0.5 m to 0.8 m. 0.7m shorter. As a result, while the required space "D" for the spraying process was 5.5 m, the required space "E" for the drying process can be shortened to approximately 5 m. Conventionally, the drying process required 5.5m of space, so for example, only 22 units could fit inside a drying oven with a total length of 130m at a time, but with the trolley structure of the present invention, 25 units can fit inside.
It is possible to improve equipment efficiency by approximately 10%.

In addition, in the above example, the second truck is provided on the first truck on which the cabin is placed via a roller as a sliding device, and the loading platform is placed on this second truck. A first trolley and a second trolley, each movable on the road surface of the painting line, are connected via a slide device so that both can move relatively back and forth, and each of the first and second trolleys is provided with a cabin and a second trolley. A loading platform may be placed on it.

(Effect of the invention) As explained above, in the present invention, the first cart on which the cabin is placed, and the second cart on which the loading platform is placed,
The cart is relatively movable in the direction of travel, and the distance between the cabin and the loading platform can be changed, so in the spraying process, the distance between the two is increased so that the opposing surfaces of the two can be sufficiently coated. In the drying process, by reducing the distance between the two, the number of carts that can enter the drying oven at one time can be increased, and the efficiency of the drying oven equipment can be improved.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an example of the bogie structure of the present invention, FIGS. 2A to 2C are a plan view, front view, and side view showing the rear part of the bogie structure of FIG. 1 in detail;
FIGS. 3 and 4 are front views showing how the vehicle body is transported by the cart of the present invention during the spraying process and the drying process, respectively. 2...first trolley, 3...second trolley, 4...
Cabin, 5... Loading platform, 21a, 21b... Guide rail, 22... Locking rail, 31... Positioning lever.

Claims (1)

[Scope of Claim for Utility Model Registration] A structure of a truck on which a vehicle body divided into a cabin and a loading platform is placed in a painting line, the truck being mounted on a truck on which one of the cabin and loading platform is placed. A painting comprising a first cart and a second cart placed on the other, and having a slide device for adjusting the position of the second cart in the traveling direction with respect to the first cart. Bogie structure on the line.