JPH0129144Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a drop-out device for a power supply trolley running in a power supply duct, and in particular to a drop-out device that can automatically open and close the duct to take out the power supply trolley. be.

In a work line where workpieces are assembled, adjusted, inspected, etc. through assembly line work, if the workpiece is an electrical product, etc., the above-mentioned adjustments and inspections of the product, and even at the time of assembly. There are cases where it is necessary to perform work while the product is energized.

In such cases, generally a power supply line is arranged along the work line, a power supply trolley is run inside this power supply duct, and the power supply trolley is run along with the flow of products, and while supplying power, the above This means that various adjustments and other work will be carried out.

FIG. 1 is a schematic plan view of a power supply line to which the present invention is applied, and is a power supply line that can be used, for example, in an integrated line from assembly to adjustment and inspection of a copying machine or the like.

In the figure, area A is used, for example, as a line for assembly, area B is used as a line for adjustment work, and area C is used for inspection and the like. In this case, 1
Or, it is assumed that two or more models can be manufactured at the same time, and common assembly work is performed regardless of the model on the A1 line, and then the A2 or A3 assembly line is selected depending on the model. Ru. Therefore, a branch part D1 of the power feeding duct is provided at the part where the power supply duct moves from A1 to A3, and a branch part D2 is provided at the part where the power supply duct moves from A2 and A3 to the line B. 1a to 1e indicated by thick solid lines are power supply ducts, through which the power supply trolley TR runs and is arranged along working positions 2a, 2b, 2c, . . . .

Each of the power feeding ducts 1a to 1e is connected by a non-powered connecting duct 3 forming an intermediate line, and the above-mentioned branch portions D1 and D2 are all provided in the connecting duct 3.

Therefore, the object to be worked on, such as a copying machine, is placed on a conveyor (not shown) and moved from the work start point S along the arrow 4a to the work points 2a, 2b, 2c.
At the same time, the power supply trolley TR connected to the workpiece by a cable supplies power to the workpiece while traveling within the power supply duct 1a.

When the assembly process of A1 is completed in this way, it is selected at the branching part D1 which line to proceed to, A2 or A3, depending on the model, and the power supply duct 1a is connected to the power supply duct 1b from the branching part D1 via the connection duct 3.
Or it is guided to 1c and supplies power to each line. When the work on line A2 or A3 is completed in this way, the power supply trolley TR is connected to the connection duct 3.
The power supply duct 1d along the adjustment line B and the power supply duct 1e along the inspection line C reach the work end point E through the branch D2 where the two merge.

In the case of such a power supply line, the closeness of the contact area between the brush 12 side of the trolley body 5 and the bus line 11 in the power supply ducts 1a to 1e is important, so in order to keep the contact area clean, dust etc. The power supply ducts 1a to 1a have the entire power supply section covered with a cover as shown in FIG. 1 or FIG.
A duct 7 such as 1e or a connecting duct 3 must be used, and such a duct 7 has a suspension shaft 9.
Except for the gap 60 in the travel direction of the trolley body 5 through which the trolley body 5 passes, it is covered with a cover having a substantially C-shaped cross section, so that it is difficult to maintain or inspect the trolley body 5 or to cause individual abnormalities in the work object. In such cases, remove the work object along with the trolley body 5 from the line (drop out).
Therefore, a special mechanism is required to take out the trolley body 5 from the connection duct 3 as necessary. It is desirable that such a mechanism can be automated in terms of work efficiency. In addition, since the trolley body 5 that runs inside the connecting duct 3 is itself quite heavy, when taking out the trolley body 5, it is possible to use both hands to take out the work without the need for troublesome work that requires force. It is desirable to have a structure that is

Therefore, the purpose of the present invention is to provide a drop-out device that can automate the opening and closing of connecting ducts and does not require unnecessary labor or troublesome work to take out the trolley body. is a drop-out device for a power supply trolley, in which the power supply trolley can be taken out by opening and closing the running plate of the connection duct connected to the power supply duct through which the power supply trolley runs, and in which the power supply trolley runs on the left and right sides of the connection duct. Both plates are cut out in the running direction of the power feeding trolley over a width equal to or longer than the length of the power feeding trolley, and each of the notched parts has a left side plate that can be rotated around a hinge member provided on the side wall of the connection duct. A right lid member is attached, and a biasing means for rotationally biasing the left and right lid members in the closing direction is provided on the left and right lid members respectively, and the left and right lids are rotated by overcoming the rotational force of the biasing means. It is connected to a drive means for driving the material in the opening direction, and the drive means can be operated by operating a switch.

Next, embodiments embodying the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention.

A power supply trolley as described above in Figure 2 a and b
A side view and a front view of an example of TR are shown.

In the figure, 5 is the trolley body, 1 each on the front, back, left and right.
The wheels 6 roll on the running plate 8 of the duct 7 such as the power supply duct 1 and the connection duct 3, and the switch is suspended on the trolley body 5 by a shaft 9. The vehicle travels along the duct 7 with the box 10 suspended.

When the duct 7 is the power supply duct 1a to 1e,
A plurality of power supply bus lines 11 are arranged on the ceiling in the running direction of the power supply trolley, and a brush 12 elastically attached to the upper part of the trolley body 5 comes into contact with the bus line 11 to connect the switch box 1.
0. The switch box 10 has on both sides thereof connection parts 13 for inserting terminals connected to the side to be worked on, and various switches. As mentioned above, the power supply trolley TR is connected to the running plate 8 of the duct 7.
Since the dropout device has a special structure in which the switchbox 10, which is quite heavy, is suspended from the bottom of the dropout device, the dropout device must have a sufficiently rigid structure.

Next, the dropout device will be explained with reference to FIG. FIG. 3a is a side view of an example of such a dropout device, and FIG. 3b is a view taken along the Z arrow in FIG. 3a.

As shown in these figures, the upper plate 3i of the connection duct 3 is attached with two bolts 61 having an L-shaped cross section.
A book angle 62 is fixed in the trolley running direction of the connecting duct 3, and two left and right angles 64 shown in FIG. 3a are vertically attached to this angle 62 by bolts 63. The cylinder mounting plate 66 is connected via two angles 65 in the running direction that connect the front and rear angles 64.
is fixed.

An air cylinder 67 is vertically fixed in the center of the cylinder mounting plate 66, and the piston rod 68 of the air cylinder 37 is horizontal at its tip and perpendicular to the running direction of the connecting duct 3. The connecting plate 69 is fixed,
This connecting plate 69 has vertical rods 70 at both ends thereof.
are fixed respectively.

On the other hand, as shown in FIG. 3a, the connection duct 3 has both side plates 3j cut out in a rectangular shape over a width longer than the length of the trolley main body 5 in the running direction, and this cutout 71 Running plate 8 at the bottom of the duct
It extends to And both side plates 3 of the connection duct 3
A rotatable hinge shaft 72 is attached to each of j, and a side plate 3 having the same shape as the cutout part of the connection duct 3 is attached to the hinge shaft 72.
Left and right lid members 73 having a substantially L-shaped cross section and consisting of a running plate 8' and a running plate 8' are attached to be openable and closable about the hinge shaft 72.

In FIG. 3b, the state in which the lid members 73 are opened at approximately 90 degrees on both sides is shown by two-dot chain lines 73', and when the lid members 73 are closed, the traveling plate 8'
is rotated until it becomes flush with the running plate 8 on the connection duct 3 side. 73a is a contact attached to the back surface of the running plate 8' of the lid member 73, and as described above, the lid member 7
When the lid 73 is closed, this abutment 73a abuts against the back surface of the running plate 8 to position the lid 73.

Two guide plates 75 each having vertical long grooves 74 are fixed to the side plates 3j' of the lid member 73, with the long grooves 74 facing each other, and the horizontal axis is set in the opposing long grooves 74. The ends of the rods 76 are slidably mounted, and each horizontal shaft 76 is fixed to the lower end of the rod 70, respectively.

Also, a bracket 7 is attached to the upper plate 3i of the connection duct 3.
A position detector 78 made of a limit switch or the like is fixed via the connector 7, and the detection lever 78a of this position detector 78 swings when a contact element 79 attached to the connecting plate 69 comes into contact with it to detect the position. The device 78 is turned on. A compressor 80 is an example of a biasing means that constantly presses the connecting plate 69 downward and biases the lid member 73 to rotate in the closing direction via the rear connecting plate 69, the rod 70, the horizontal shaft 76, and the guide plate 75. A shaft 80a fixed perpendicularly to the connecting plate 69 with a spring prevents the shaft from buckling, and the shaft 80a is slidably fitted into a hole 80b drilled in the cylinder mounting plate 66. This serves as a guide when the 69 moves up and down.

On the other hand, the air cylinder 67 overcomes the rotational force of the urging means and the lid member 73
The air cylinder 67 is operated by a solenoid valve which is driven by operating a switch (not shown), and the time required for its operation can be determined by adjusting a well-known speed controller or the like. It can be set arbitrarily depending on the

The dropout device configured in this way is
It is attached to a portion of the connecting duct 3 that connects the various processes shown in FIG. 1, for example, to a portion DR shown by a two-dot chain line in FIG. A dropout auxiliary line DL (indicated by a broken line) is provided in front of these dropout devices for removing work objects such as copying machines from the line.

For example, in the assembly line A2, if an abnormality is discovered in the workpiece and it is difficult to repair on the line, the dropout device DR2 installed in the connection duct 3 connected to the part exiting the line A2 The power supply trolley TR is removed from there, and the object to be worked on is pulled out to the auxiliary line DL2, where separate repairs, inspections, etc. are performed. Therefore, for each auxiliary line DL,
Each is provided with an individual power supply.

Now, in the assembly line A2, if a malfunction that cannot be repaired on the line is discovered in a work object flowing on a conveyor, when the work object comes just before the dropout device DR2,
The operator supports the power supply trolley TR with both hands and operates, for example, a switch (not shown) placed at his feet with his feet to drive the air cylinder 67 and pull the piston rod 68 upward. Therefore, the connecting plate 69, the rod 70, and the horizontal shaft 76 connected to the piston rod 68 are lifted up as one, and the guide plate 75 is moved to the hinge shaft 72 by being biased by the horizontal shaft 76.
The notch 71 of the connecting duct 3 is opened downward and opened in both directions. Since the horizontal shaft 76 can slide along the long groove 74 of the guide plate 75, the rod 70 can be lifted upward while being maintained in a vertical position.

When the air cylinder 67 is retracted by its stroke and operated to its upper limit position, the lid member 73 is opened to a position 73' shown by a two-dot chain line in FIG. 3b.

Therefore, the operator can easily take out the trolley body 5 to the outside from the notch 71 opened in this way, and after taking out the trolley body 5, operate another switch etc. to drive the air cylinder 67 and return to the original state. let As a result, the connecting plate 69 is pressed downward by the force of the compression spring 80 and the air cylinder 67, the connecting plate 69, the rod 70, and the horizontal shaft 76 are lowered together, and the lid member 73 is completely closed. Lid material 7
The running plate 8' of No. 3 and the running plate 8 of the connecting duct 3 reach a position where they are on the same plane, and then the compression spring 80
The position of the cover member 73 is maintained by the force of , and the following trolley main body 5 can run smoothly.

When the connecting plate 69 reaches the lowest position in this manner, the contact element 79 pushes the detection lever 78a of the position detector 78 and sends a signal to the outside that the following trolley main body 5 can travel. This signal may be used to blink an alarm lamp, or to operate an actuator or the like that drives a baffle plate (not shown) that is retractably attached to the connection duct 3 immediately in front of the dropout device DR.

In the above embodiment, an air cylinder was used as a means for driving the lid, but this is just an example.
It is also possible to use other solenoids, hydraulic cylinders, etc. as appropriate, and it is also possible to eliminate the compression spring 80 as the biasing means and use an air cylinder or the like that operates in both reciprocating directions.

As described above, the present invention provides a drop-out device for a power supply trolley in which the power supply trolley can be taken out by opening and closing the traveling plate of a connecting duct connected to the power supply duct through which the power supply trolley runs. Both the left and right running plates of the connection duct are cut out in the running direction of the power supply trolley over a width greater than the length of the power supply trolley, and the hinge members provided on the side walls of the connection duct are centered at the notches. Rotatable left and right lid members are attached to the left and right lid members, respectively, and biasing means for biasing the left and right lid members to rotate in the closing direction, and a rotational force generated by the biasing means. This drop-out device for a power supply trolley is characterized in that the drive means for driving the left and right cover members in the opening direction are connected to each other, and the drive means can be operated by operating a switch. The lid, which is a part of the duct running plate, can be opened and closed freely, and this lid can be opened and closed automatically using an actuator such as an air cylinder, which greatly improves the efficiency of dropping out the trolley body. In addition, unnecessary labor is not required to take out the power supply trolley, and the troublesomeness can be eliminated.

[Brief explanation of the drawing]

Figure 1 is a plan view showing an example of a power supply line to which the present invention can be applied, Figures 2a and b are side and front views of the entire power supply trolley to be transported on the line, and Figure 3 Figures a and b are a side view and a Z-arrow view showing a dropout device that is an embodiment of the present invention. Explanation of symbols, A to C...Various process lines, F...
...Communication line, 1a to 1e...Power supply line, 3...
... Connection duct, 5 ... Trolley body, 7 ... Duct, 8 ... Running plate, 67 ... Air cylinder (driving means), 71 ... Notch, 72 ... Hinge shaft,
73...Lid material (left/right lid material), 73a...hit,
75... Guide plate, 74... Long groove, 78... Position detector, 80... Compression spring (biasing means).

Claims (1)

[Scope of Claim for Utility Model Registration] In a drop-out device for a power supply trolley, the power supply trolley can be taken out by opening and closing the running plate of a connecting duct connected to a power supply duct through which the power supply trolley runs, as described above. Both the left and right running plates of the connection duct are cut out in the running direction of the power supply trolley over a width greater than the length of the power supply trolley, and the hinge members provided on the side walls of the connection duct are centered at the cutout portions. Rotatable left and right lid members are attached, and biasing means for biasing the left and right lid members to rotate in the closing direction are attached to the left and right lid members, respectively, and the rotational force of the biasing means is overcome. A drop-out device for a power supply trolley, characterized in that the drop-out device is connected to a drive means for driving the left and right cover members in the opening direction, and the drive means can be operated by operating a switch.