JPH0192112A - Sling conveyer device having l-shaped hanger - Google Patents

Abstract

PURPOSE:To aim at making lightweight an overhead conveyer for conveying automobile body and at reducing the drive power thereof by locating the loading section of each L-shaped hanger suspended from the conveyer on one side of the latter so that the loading section is guided by a guide roller and a position regulating rail. CONSTITUTION:A pair of L-shaped hangers 8 are suspended from an overhead conveyer so as to be swingable in longitudinal and lateral directions with its loading section 8' being located on one side of the overhead conveyer. Further, a guide roller 13 is attached to the loading section 8' of each hanger 8 so that the hanger 8 is conveyed being guided by a position regulating guide rail 14 along an inter-section for conveyance, With this arrangement, it is possible to restrain several component parts of the overhead conveyer from increasing their strength, to a minimum degree, thereby it is possible to aim at making the conveyer lightweight and at reducing the drive consumption power.

Description

DETAILED DESCRIPTION OF THE INVENTION INDUSTRIAL APPLICATION The present invention relates to an overhead conveyor suitable for transporting vehicle bodies in an automobile assembly line.

Prior Art A suspended conveyance device having an L-shaped hanger that prevents foreign matter such as oil and abrasion powder from a conveyor from falling onto the conveyed object placed on the hanger is disclosed in, for example, Japanese Patent Laid-Open No. 58 -2
As disclosed in Japanese Patent Application No. 24844, it has been known for a long time, but its structure is as shown in FIG. A foreign matter scattering prevention cover plate P is installed vertically, and the horizontal rotational moment caused by the transported object A on the loading section S acts on the L-shaped hanger H, so that the vertical portion H' of the hanger A guy and a troller G, which are reinforced and attached with a bracket B, are pressed against the lower surface of the position regulating rail R to prevent the hanger H from tilting.

In addition, a cover member P was installed to prevent foreign matter such as oil and dust from flying off the overhead conveyor.

Problems to be Solved by the Invention In the prior art described above, the guide roller G that prevents the hanger H from tilting to the side due to the rotational moment acting on the hanger H is attached to the vertical part of the hanger H. Since the distance from the center of tilt to the guide roller is short, the bending moment applied to the guide roller mounting rod F becomes excessive due to the large weight of the vehicle, making it essential to add reinforcement means such as bracket B to the structure. Therefore, the weight of the hanger H also increased, and furthermore,
Since the pressing reaction force of the guide roller G against the rail R acts vertically downward, the load applied to the carrier rail of the overhead conveyor increases by the pressing reaction force, and therefore the hanging load of the overhead conveyor also increases. As a result, the strength of the components of the overhead conveyor may become excessively large, and the driving force of the conveyor also becomes large.

In addition, the foreign object scattering prevention plate can prevent foreign objects from scattering and falling onto the car body from the overhead conveyor, but it cannot prevent foreign objects from falling directly below the overhead conveyor, and if the car body is to be electroplated, pretreatment is required. This method has the disadvantage that oil, dust, etc. fall into the processing liquid tank in which the car body is immersed and transported, contaminating the processing liquid.

Means and operation for solving the problems In order to solve the problems of the above-mentioned prior art, the present invention has the following features:
By providing a guide roller to prevent the L-shaped hanger from tilting on the loading part of the L-shaped hanger, the distance from the center of tilting of the L-shaped hanger to the guide roller position can be increased, and the tilting prevention load applied to the guide roller can be reduced. Along with making it smaller,
The direction of the pressure reaction force against the position regulating rail of the guide roller is oriented laterally to reduce the vertical load, simplifying the mounting structure of the guide roller to the L-shaped hanger, and also making the L-shaped hanger easier to install. C opened on the loading section side of
By attaching to the support frame of the overhead conveyor a foreign matter fall prevention member having a receiving plate and a scattering prevention upright plate, which is suspended from the overhead conveyor via a molded metal fitting and inserted into the opening of the C-shaped metal fitting, This prevents falling foreign matter from getting onto the vehicle body and into the liquid tank in which the vehicle body is immersed and transported.

Embodiment FIG. 1A is a side view of the embodiment of the first invention, and FIG. 1B is a front view of FIG. 1A in which the vehicle body is immersed and transported in a liquid tank, and the vehicle is guided by the power rail l and runs. The double-acting overhead conveyor has a leading trolley 4, a front trolley 5, a rear trolley 6, and a trailing trolley 7, which are pulled by a drive chain 2 and guided by a free rail 3.
A pair of rhombus-shaped hangers 8.8 are hung so as to be swingable in the front, back, left, and right directions, and the loading portion 8' of the L-shaped hanger 8.8 is located on the side of the overhead conveyor to support objects 9 such as car bodies. are doing. Since the L-shaped hanger 8.8 is swingable in the front and rear directions, it can be transported on an inclined path, and since it is swingable in the left and right directions, when the hanger is moved with an empty load, Since the position regulating rail and the guide roller are not aligned, the hanger can be tilted at the tilting center to reduce the amount of lateral protrusion.

The slider 10 attached to the L-shaped hanger comes into sliding contact with the power supply rail 12 provided on the wall of the liquid tank 11 when the car body 9 is immersed in the pretreatment electrodeposition tank 11 as shown in FIG. 1B. .

A guide roller 13 is attached to the loading portion 8' of the L-shaped hanger. Since the rail 14 restricts only the left and right directions of the guide roller, errors in mounting in the height direction can be tolerated.

FIG. 2 is a front view of a liquid tank showing a second embodiment of the invention, and the same members as in FIGS. 1A and 1B are designated by the same symbols.

The L-shaped hanger 8 is suspended from the overhead conveyor so as to be swingable in the front, rear, left and right directions via a C-shaped bracket 15 having a U-shaped cross section and opening on the side of the loading portion 8' of the L-shaped hanger. In the opening, a receiving plate 16a of the foreign matter falling sticking member 1G is inserted.
The receiving plate 16a is supported by a scattering prevention upright plate 16b suspended from the frame for mounting the overhead conveyor.

Therefore, the oil generated from the overhead conveyor,
Foreign matter such as abrasion powder and dust is stopped by the receiving plate 16a, and is prevented from falling into the processing liquid in the liquid tank 11, and the foreign matter is prevented from scattering and falling to the side. The upright plate 16b prevents the liquid from entering the liquid tank and from adhering to the upper surface of the transported object 9.

Note that the guide roller 13 is connected to the loading portion 8' of the L-shaped hanger.
It may be installed in either position, but the larger the distance from the swing center of the L-shaped hanger, the smaller the load on the guide roller relative to the rotational moment becomes, which is more effective.

Furthermore, since the L-shaped hanger 8 is hung so as to be swingable in the left-right direction, the position regulating rail 14 is not laid in the section where the transported object 9 is not loaded.
As shown in FIG. 3, the L-shaped hanger 8 tilts laterally, reducing the portion that protrudes laterally from the overhead conveyor, thereby saving the space occupied by the empty L-shaped hanger during conveyance. be.

Effects of the Invention The present invention makes it possible to prevent the lateral tilting moment of the L-shaped hanger during loading by means of a guide roller provided in the loading portion of the L-shaped hanger that is far from the center of tilting, and also to prevent the sideward tilting moment of the L-shaped hanger during loading. Since the direction of action of the roller's pressure reaction force is oriented laterally, the tilting prevention load applied to the guide roller is only due to the length of the arm of the tilting moment being larger than in the case of the conventional example mentioned above. In addition, since the pressing reaction force is not applied vertically downward, the strength of the structure of the guide roller and the position regulating rail on which the guide roller is guided, as well as each component of the overhead conveyor, can be minimized. The effects are significant, such as being able to reduce the weight of the hanger and the power consumption for driving the overhead conveyor.

[Brief explanation of the drawing]

Figure 1A, Figure 1B, Figure 2 and Figure 3 show embodiments of the present invention, Figure 1A is a side view of the main part of the first invention, Figure 1B is Figure 1A in the liquid tank. 2 is a front view of the liquid tank of the second invention, FIG. 3 is a front view of the hanger in an empty state, and FIG. 4 is a front view of a conventional example. 8... L-shaped hanger 8'... Loading section 1
3...Guide roller 14...Position regulating rail 15...C-shaped metal fitting 16...Foreign object fall prevention member 16a...Socket plate 16b...Scatter prevention upright plate No. 1A 1'3 1. ＞Old Figure 2 Figure 3 Figure 4 Procedural Amendments June 15, 1986

Claims (2)

[Claims] (1) An L-shaped hanger is hung from an overhead conveyor, the loading part of the L-shaped hanger is positioned on the side of the overhead conveyor, and a guide roller guided by a position regulating rail is attached to the loading part. Hanging conveyor device with a shaped hanger. (2) An L-shaped hanger is suspended from the overhead conveyor via a C-shaped metal fitting with a U-shaped cross section that opens on the side of the loading section of the L-shaped hanger, and the loading section of the L-shaped hanger is placed on the side of the overhead conveyor. A guide roller guided by a position regulating rail is attached to the loading section, and the C
A hanging conveyance device having an L-shaped hanger in which a foreign matter fall prevention member having a receiving plate inserted into an opening of a mold fitting and a scattering prevention upright plate is attached to a support frame of an overhead conveyor.