JPH0739844Y2 - Trolley conveyor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a trolley conveyor used in an assembly line of an automobile or the like.

<Prior Art> A trolley conveyor is a simple and useful transfer machine for transferring parts and the like in an automobile assembly line or the like. The trolley conveyor is a three-dimensional arrangement of conveyor rails that conveys objects to be conveyed through complicated routes including ups and downs and corners.It is superior to chain conveyors in terms of installation cost and space utilization rate. ing.

4 and 5 show an example of a conventional trolley conveyor,
The front and side surfaces of a trolley conveyor for transporting passenger car seats are respectively shown. In the figure, reference numeral 1 is a conveyor rail provided along an automobile assembly line, which is installed so as to be suspended from the ceiling of an assembly plant. A roller 3 at the upper end of a V-shaped slider 2 is fitted to the conveyor rail 1, and the slider 2 runs along the conveyor rail 1 by a driving means (not shown). A hanger 4 made of steel pipe is swingably attached to the lower end of the slider 2 so that the hanger 4 stands upright by its own weight even when the conveyor rail 1 is inclined.

The side surface of the hanger 4 is U-shaped as shown in FIG. 5, and the skid plate 5 is integrally attached to the upper surface of the lower portion thereof. Left and right front seats 6a, 6 on the skid plate 5
It is equipped with a bench type rear seat 7 that is folded with b, and these are one set for one passenger car.

A rubber seat band 8 is slanted on the rear seat 7 to restrain the front seats 6a, 6b and the rear seat 7 on the skid plate 5. Locking hooks 8a are attached to both ends of the seat band 8 and are locked to U-shaped rings 9 provided in front and rear of the upper surface of the skid plate 5.
The seat band 8 moves from the hanger 4 to the rear seat 7 during transportation.
It prevents the front seats 6a and 6b from falling off, and is essential for a trolley conveyor that repeatedly starts and stops while climbing, descending or turning while avoiding factory equipment.

<Problems to be Solved by the Invention> However, this trolley conveyor using the seat band 8 has the following drawbacks.

That is, the seat band 8 has to be attached and detached when the seat is mounted on the hanger 4 or when the seat is unloaded on the line side, which requires a considerable number of man-hours. The seed band 8 is placed on the hanger 4 after the seat is unloaded, and then sent back to the seat mounting position.
Often, as shown by a broken line in FIG. 5, the seat band 8 hangs down due to carelessness, and the locking hooks 8a at the ends are provided in a fall prevention net (not shown) provided under the running path of the hanger 4. I was sometimes asked. In this case, breakage of the seat band 8 or operation of the overload stopping device of the trolley conveyor is often caused, which is a problem in process control.

An object of the present invention is to eliminate the above-mentioned drawbacks, thereby reducing the number of work steps and realizing a smooth transfer work without trouble.

<Means for Solving the Problems> The structure of the present invention for achieving the above object is configured such that a conveyor rail extending obliquely downward toward a loading / unloading position of an object to be transferred and the object to be transferred are placed. And a hanger that is guided and moved by the conveyor rail, and an upper end is rotatably supported by the hanger and is rotated downward by its own weight to hold down the front surface of the transported object placed on the hanger. And a lid member that presses the transported object against the hanger, and is provided only on the conveyor rail at the loading / unloading position of the transported object and in the vicinity thereof, and from the lower side of the conveyor rail along the moving direction of the hanger. And a horizontally extending guide rail, one end of which is supported by the lid member and the other end of which is fitted and guided by the movement of the hanger, and the guide rail of the hanger. Member for rotating the lid member upward by moving the other end in the horizontal direction along the guide rail in accordance with the downward tilting movement along the roll to open the front side of the transported object. And a combination member.

<Operation> The bunga on which the transported object is placed is guided by the conveyor rail and transported. During the transportation, the lid member is rotated downward by its own weight, and the front surface of the transported object is pressed by the lid member to prevent the lid member from falling off. When the hanger tilts downward toward the unloading position, the other end of the engaging member moves horizontally along the guide rail, and the lid member pivots upward as the hanger moves downward. The front side of the transported object is opened.

<Embodiment> An embodiment of the present invention will be described below in detail with reference to the drawings.

FIG. 1 shows the front of a trolley conveyor according to the present invention, and FIGS. 2 and 3 show the front. Incidentally, of the reference numerals of the members in the drawings, the same members as those of the above-mentioned conventional member are designated by the same reference numerals.

As shown in the figure, a sheet as an object to be conveyed is placed on the L-shaped hanger 4 of the trolley conveyor and is guided by the hanger 4 and the conveyor rail 1 to move. The conveyor rail 1 is installed so as to incline downward toward a hanger stop position (indicated by a chain line in FIG. 1) which is a sheet loading / unloading position.

The hanger 4 is provided with a retainer 10 made of steel pipe as a lid member for pressing the front surface of the sheet from above. The retainer 10 has an upper end portion (point P in FIG. 2) rotatably supported on the upper portion of the hanger 4, and rotates downward by its own weight when no external force is applied, and the front surface of the sheet placed on the hanger 4 is retained. The sheet is fixed to the hanger 4 by pressing.

A guide rail 14 is installed near the hanger stop position,
The guide rail 14 is installed so as to extend horizontally and intersect the upper side of the conveyor rail 1 along the moving direction of the hanger 4. That is, as shown in the figure, the guide rail 14 is installed in a state in which the guide rail 14 is located below the inclined section and above the horizontal section with respect to the conveyor rail 1.

On the other hand, one end portion (point Q in FIG. 2) of a draw bar 11 as an engaging member is rotatably supported in the middle of the retainer 10, and the draw bar 11 is a U-shaped top view formed on the upper end of the hanger 4. It is guided by the mold guide portion 12 and is movable upward. A roller 13 is provided on the upper end (the other end) of the drawbar 11, and when the hanger 4 tilts along the conveyor rail 1 to the hanger stop position, the roller 13 is guided by the guide rail 14.
Moves in the horizontal direction by being fitted and guided by. As the roller 13 moves in the horizontal direction, the draw bar 11 moves upward relative to the hanger 4 to rotate the retainer 10 upward,
The front surface of the sheet placed on the hanger 4 is opened.

When the retainer 10 is rotated upward, the draw bar 11 is relatively moved upward via the roller 13 by the downward tilt movement of the hanger 4, that is, the draw bar 11 is moved in parallel. Even if the retainer 10 has a heavy weight, the retainer 10 can be easily rotated upward, and the front surface of the seat can be reliably opened at the hanger stop position.
In other words, even if the retainer 10 is heavy enough to hold down the seat firmly, the retainer should be used at the hanger stop position.
The rotation of 10 is easily performed to surely open the front surface of the seat.

Next, the operation of this embodiment will be described.

The sheet is placed on the hanger 4 and conveyed along the conveyor rail 1 in a state where the front surface is pressed by the retainer 10. During conveyance, the sheet is firmly fixed to the hanger 4 by the weight of the retainer 10 and is prevented from falling. When the hanger 4 inclines to the hanger stop position along the inclination of the conveyor rail 1, the roller 13 at the upper end of the drawbar 11 is introduced into the guide rail 14 from the opening 14 a of the guide rail 14. FIG. 2 shows the state at that time.

The roller 13 is guided from the position where the hanger 4 further descends and the guide rail 14 intersects the conveyor rail 1.
When it hangs on the horizontal part of 14, the hanger 4 descends and the drawbar 11 moves horizontally. As a result, the drawbar 11 rises relative to the hanger 4, and the retainer 10 is pulled up around the point P and turned upward. As a result, the front surface of the sheet is opened at the hanger stop position, and at the hanger stop position, the sheet can be taken out as it is without performing work such as hanging and removing the seat band.
Although FIG. 3 shows the state of the retainer 10 at the hanger stop position, it can be seen that the retainer 10 is fully opened.

After removing the sheet at the hanger stop position, hanger 4 again
When the sheet is placed on the hanger 4 and the hanger 4 is transferred along the conveyor rail 1, as the hanger 4 rises, the drawbar 11
Relatively falls. And the roller 13 is a guide rail
When it comes off from 14, the sheet is firmly fixed to the hanger 4 by its own weight of the retainer 10 to prevent the sheet from falling off during conveyance.

In the trolley conveyor described above, the guide rails 14 that extend horizontally at the hanger stop position are arranged above the conveyor rails 1 and the retainer 10 is relatively raised by the downward tilt movement of the hangers 4 and the front surface of the sheet. Since the retainer 10 is opened, the retainer 10 can be easily rotated at the hanger stop position even if the retainer 10 is constructed with a weight sufficient to firmly press the seat. Therefore, it is possible to reliably prevent the sheet from falling off. Also,
By arranging the conveyor rail 1 and the guide rail 14 so as to intersect with each other, it becomes possible to rotate the retainer 10 in a small space, and it is possible to install the retainer 10 in a factory or the like with minimal influence on peripheral devices. Further, since the roller 13 is mounted on the guide rail 14, the hanger 4 does not swing greatly even when the retainer 10 is opened at the hanger stop position, and the seat can be easily loaded and unloaded, and friction can be prevented. Since it is small, the friction surface is not deformed so that it is not caught and no noise is generated.

Therefore, the trolley conveyor having the above-mentioned configuration is different from the conventional one in which the seat band is prevented from falling off, and the work man-hours such as removing and attaching the seat band are omitted, and troubles such as damage to the seat band due to carelessness occur. Will be resolved.

In addition, the present embodiment is an application of the present invention to a trolley conveyor that conveys seats of passenger cars, but naturally, the object of conveyance is not limited to this, and a trolley conveyor used in a place other than an assembly plant is used. May be applied to.

<Results of Invention> According to the trolley conveyor of the present invention, a guide rail that is provided adjacent to the conveyor rail and extends horizontally along the moving direction of the hanger and intersects with the upper side of the conveyor rail is provided on the hanger by tilting the hanger. Since the opened lid member is opened by rotating it relatively upward, even if the lid member is constructed with a weight sufficient to hold down the transported object, the lid member can be easily rotated at the hanger stop position. The work of fixing the transported object to the hanger during transportation is automated.
The work man-hours and troublesomeness involved in detaching and attaching the seat band as in the conventional one are eliminated. Further, the seed band is not damaged and the trolley conveyor is not overloaded due to carelessness, and stable work is possible. Also, by arranging the conveyor rail and the guide rail to intersect,
Since the lid member can be rotated in a small space, it can be easily installed in a factory or the like.

[Brief description of drawings]

FIG. 1 is a front view of a trolley conveyor according to the present invention, and FIG.
FIG. 3 is a side view thereof, FIG. 4 is a front view of a conventional trolley conveyor, and FIG. 5 is a side view thereof. In the figure, 1 is a conveyor rail, 4 is a hanger, 10 is a retainer, 11 is a draw bar, 13 is a roller, and 14 is a guide rail.

Claims (1)

[Scope of utility model registration request] 1. A conveyor rail extending obliquely downward toward a loading / unloading position of a transported object, a hanger on which the transported object is placed and which is guided and moved by the conveyor rail, and an upper end portion A lid member that is rotatably supported by the hanger and that pivots downward due to its own weight to press the front surface of the transported object placed on the hanger and press the transported object against the hanger; A guide rail that is provided only at the conveyor rail at the loading / unloading position of the conveyed goods and in the vicinity thereof and that extends horizontally along the moving direction of the hanger from the lower side of the conveyor rail to the upper side thereof, and one end of which is the lid. The other end is supported by a member and is fitted and guided by the guide rail in accordance with the movement of the hanger, and the guide of the other end is caused by the downward movement of the hanger along the conveyor rail. A trolley conveyor comprising: an engaging member that pivots the lid member upward by moving in a horizontal direction along a rail to open a front side of the transported object.