JP2000168548A - Mobile truck device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mobile truck device with its feeder cable of a mobile truck not constituting an obstacle for going on a passage and allowing an easy change of the work transport line. SOLUTION: This mobile truck device includes a truck 1 equipped with a takeup drum 3 on which a feeder cable 2 leading from an external power supply is taken up, and the truck 1 reciprocates along a groove 9A of a guide rail 9 installed on the floor surface F and is equipped with guide rollers 6A-6D to guide the middle part of a long stretching cover member 5, and the two ends of the cover member under guidance of the rollers are fixed to the floor surface at each terminal of the truck running path.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for a self-propelled trolley for transporting a work, a product, etc., traveling on a passage secured between a production line and a work transport line. The present invention relates to a self-propelled bogie device.

[0002]

2. Description of the Related Art In a production factory for automobiles, electric appliances, etc., between production lines, between adjacent work transfer lines,
Or in the middle of the work transfer line, it is often necessary to secure a passage for a person or a wheelbarrow or the like, in which case, for example, to transfer the work with a trolley between the work transfer lines, The bogie reciprocates across the passage. In such a case, it is preferable to use a self-propelled trolley equipped with an electric motor as the trolley, and as a power source, a trolley equipped with a battery is often used. However, in this case, when the transport cycle is short and continuous operation is performed for a long time, it is necessary to replace the battery,
Since it takes a long time to charge the battery, it is common to use a power supply cable.

As shown in FIG. 11, a bogie used in such a case is a cable reel type in which a power supply cable 23 is wound by a spring type or electric winding reel 22 provided on a bogie 21. FIG.
The support wire 2 attached to the support 24 as shown in FIG.
5, a cable hanging system in which a power supply cable 23 supported by a support 26 provided on a carriage 21 is suspended or a cable hose support and guide system in which the power supply cable 23 is mounted on a support attached to a support for the power supply cable. A bogie such as (not shown) is conventionally known.

[0004]

In the cable reel system, when the carriage travels, the power supply cable 23 drawn out from the take-up reel 22 remains on the passage floor F so that it can be used by a person or the carriage. There is a problem that it interferes with traffic. Further, in the cable hanging system or the cable hose supporting and guiding device system, since the supporting member attached to the support is located at the upper side, the visibility in the factory is deteriorated, the appearance is poor, and the effective use in the upper part of the factory is hindered. There was a problem of becoming. As a solution to such a problem, it is possible to dig a pit on the floor F of the aisle and house a drive unit and a power supply unit. However, in such a case, complicated construction, facilities, devices, and the like are required, There is a problem that the equipment cost is increased and the transfer line cannot be easily changed.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is directed to a self-propelled truck provided with a winding drum for winding a power supply cable connected to an external power supply. In a self-propelled bogie device that reciprocates along the groove of the guide rail provided in the bogie, the bogie is provided with a guide roller that guides a long cover member intermediate portion,
Both ends of the cover member guided by the guide rollers are fixed to the floor surface at both ends of the traveling path of the truck, respectively.
While being taken out from the winding drum into the groove, or taken out from the groove and wound on the winding drum,
The cover member is drawn into the bogie from the front side in the running direction as the bogie travels, orbits the guide roller, is fed out onto the groove from the rear side, and covers the groove. It adopts a configuration of a self-propelled bogie device.

[0006]

In the self-propelled bogie device having the above-described structure, the cover member is retracted into the bogie on the front side of the bogie so that the guide roller is moved forward (for example, rightward in FIG. 2). Will be guided to. On the other hand, from the back of the bogie,
At the same time that the power supply cable is fed into the groove, the cover member guided by the guide roller is fed thereon to cover the groove. When the vehicle travels in the retreating direction (left direction in FIG. 2), on the front side in the traveling direction, the power feeding cable is wound on the winding drum, and at the same time, the cover member is retracted into the bogie to orbit the guide roller. Then, the cover member protrudes from the rear side of the cart, and covers the concave groove. With this configuration, the concave groove is always covered with the cover member that extends from the rear side in the traveling direction of the bogie.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 of the present invention will be described with reference to FIGS. The same members as those in the conventional technique are denoted by the same reference numerals and will be described below. Transport line L1,
L2 is composed of a conveyor or the like, and a passage R through which a person or a handcart passes is secured between the transport lines L1 and L2 arranged in parallel. Then, the carriage 1 for transporting the work is transported on the transport line L across the passage R.
It reciprocates between L1 and L2.

As shown in FIGS. 1 to 4, the self-propelled trolley 1 includes wheels W provided on a trolley body 1A, an electric motor M for driving the wheels, and a guide member G for guiding the trolley traveling. ing. The carriage 1 reciprocates by driving the electric motor M, with the guide member G being guided by the concave groove of the guide rail, as described later. Also, the bogie body 1A has
A cable winding drum 3 for winding the power supply cable 2, a motor 3A for driving the winding drum, guide rollers 4A and 4B for the power supply cable 2, and a top chain 5 are provided.
Guide rollers 6A, 6B, 6C, and 6D for guide are provided rotatably (rotation-free). Here, the guide rollers 6A and 6D are rotatably mounted on the axle S of the wheel W via bearings (free to rotate on the axle S).

The trolley 1 travels across the passage R,
On one floor at the end of travel end F, a fixing member 7 of the top chain 5 also serving as a connection terminal box for the power supply cable 2 is provided.
Similarly, a fixing member 8 for the top chain 5 is provided on the other end-of-travel-side floor surface F.
The top chain 5 serving as a cover member has both ends fixed to the floor surface F by fixing members 7 and 8, and an intermediate portion thereof includes guide rollers 6A and 6A provided on the carriage body 1A.
B, 6C and 6D.

On the other hand, as shown in FIGS. 5 and 6, a guide rail 9 having a groove 9A in the longitudinal direction is provided on the floor surface F of the passage R along the traveling direction of the bogie 1.
At 0, it is fixed on the floor F. On both sides of the guide rail 9, tread plates 11 and 12 are provided to be inclined over the longitudinal direction. The cart 1 is provided with a guide member G for guiding the cart traveling provided on the cart body 1A, that is, the shaft 13A.
The guide roller 13B supported by the guide rail 13 is guided along the groove 9A of the guide rail 9 to travel along the groove 9A. The guide rail 9 is sufficient if its height is, for example, about 30 to 40 mm. C in the figure is a conveyor installed on the cart 1.

The self-propelled bogie device configured as described above, when the bogie 1 travels across the path R from the transport line L1 to the transport line L2 in FIG. 1 and FIG. As shown, on the front side in the traveling direction, the top chain 5 serving as a cover member is retracted into the carriage 1 via the guide rollers 6A, and the guide rollers 6A to 6C are driven.
Orbit D. On the other hand, at this time, the power supply cable 2 wound around the winding drum 3 is connected to the guide rollers 4A and 4A.
Through B, it is fed out from the rear side of the bogie 1 into the concave groove 9A. At the same time, the top chain 5 is extended to the rear side of the bogie 1 via the guide roller 6D, and
The carriage 1 travels in the direction of the transport line L2 while closing the cover A, and stops at a predetermined position on the traveling end limit side. As a result, the power supply cable 2 is arranged in the concave groove 9A of the guide rail 9, and the power supply cable 2 is covered with the top plate 5A of the top chain 5 thereon.

Next, in FIGS. 1 and 2, when the carriage 1 travels from the transport line L2 to the transport line L1, the top chain 5 is pulled in from the guide roller 6D provided on the carriage 1 in the forward direction of travel. At the same time, the power supply cable 2 is wound around the winding drum 3, and the top chain 5 is fed out from the rear side of the carriage 1 via the guide roller 6A. The vehicle travels in the direction, and stops at a predetermined position on the traveling end limit side.

As described above, after the carriage 1 passes, the concave groove 9A is always covered by the top plate 5A of the top chain 5 which is a long cover member on the rear side in the traveling direction of the carriage. Then, the power supply cable 2 can be prevented from remaining on the floor surface F and exposed, and the wheel of the handcart can be prevented from dropping into the concave groove by the lid of the top chain. Foreign matter and the like can be prevented from entering. In addition, since the guide rail of this system has a very low height on the floor surface, a person, a wheelbarrow, and the like can easily pass through.

Embodiment 2 of the present invention will be described with reference to FIGS. As shown in FIG. 7, between the transport lines L3 and L4 arranged in series, a passage R through which a person or a wheelbarrow or the like passes is secured, and the carriage 1 crosses the transport line across the passage R. The vehicle travels back and forth between L3 and L4.

The trolley 1 has substantially the same configuration as that of the first embodiment, and the trolley 1 is connected to the transport lines L3, L
As shown in FIG. 8, since the direction of the conveyor C is different from that of FIG. 8, since the vehicle travels across the passage provided between the sections 4, only reference numerals are given to FIG. .

The difference from the self-propelled trolley device of the first embodiment is that the guide rail is buried in the floor and the groove is formed below the upper surface of the floor. That is, the guide rail 15 is embedded in the floor surface F, and the groove 15 of the guide rail is provided.
A is located below the floor F. And Example 1
In the same manner as described above, the power supply cable 2 is inserted into the concave groove 15A and is covered with the top chain 5 by the reciprocating movement of the carriage 1, and the concave groove 15A is always covered after passing through the carriage.

As described above, since the guide rail 15 is buried in the floor F, the guide rail 15 is laid only by forming a slight groove in the floor F, so that a large-scale foundation work is not required and the guide rail can be easily installed. be able to. In addition, since the upper surface of the guide rail 15 is flush with the floor surface F, and the concave groove 15A is covered with the top chain 5, there are no protrusions on the floor surface F, and the floor surface F is completely free of traffic for humans and wheelbarrows. It does not hinder. If the groove is no longer needed when changing the line, simply providing a fixed lid in the groove will result in the same state as a general floor surface, and there is no need to perform burying work again.

The embodiments 1 and 2 have been described above.
As another aspect, the cover member is not limited to the top chain, and may be any member that can circulate around the guide roller. Also, the truck is not limited to a truck for transporting a work, and may be a simple truck. The vehicle may travel on a path other than the path between them. Further, instead of attaching the guide rollers 6A and 6D provided on the truck body 1A to the axle S, the guide rollers 6A and 6D may be attached to another shaft provided on the truck body 1A. May be used as an automatic winding drum.

[0019]

According to the present invention, in a self-propelled bogie device, a self-propelled bogie provided with a take-up drum reciprocates along a groove of a guide rail provided on a floor surface. With the reciprocation, the power supply cable is fed out from the winding drum into the groove, or is taken out from the groove and wound on the winding drum, and the cover member is
As the truck travels, it is fed into the truck from the front in the traveling direction, circulates around the guide roller, extends from the rear side onto the groove, and covers the groove. The groove can be used for accommodating the power supply cable.Either when the power supply cable is fed into the groove or when the power cable is wound up, after passing through the bogie, the groove is always covered with a cover member on the rear side thereof. Can be. Accordingly, it is possible to prevent a person from tripping on the power supply cable or the groove, or to prevent the wheelbarrow from dropping into the groove, thereby securing a safe passage in the work transfer path.

The carriage is provided with a guide roller for guiding an intermediate portion of the long cover member, and both ends of the cover member guided by the guide roller are provided on the floor surface at both ends of the traveling path of the carriage. Because it is fixed to the simple structure of fixing both ends of the cover member to the floor surface, it can always be covered even if the power supply cable is inserted into the concave groove, and the conventional cable hanging method, It is not necessary to provide a support member or the like for the power supply cable in the passage unlike the cable hose support / guiding device system and the like, and the self-propelled bogie device can be space-saving and compact.

Since the groove into which the power supply cable is inserted is provided in the guide rail for guiding the carriage, the traveling path of the self-propelled carriage can be formed only by moving the guide rail, and thus the work transfer line can be formed. Changes can be made easily.

[Brief description of the drawings]

FIG. 1 is a plan view of a self-propelled bogie device according to a first embodiment of the present invention.

FIG. 2 is a side view of the self-propelled bogie device.

FIG. 3 is a front view of the truck viewed in the direction of arrows XX in FIG. 2;

FIG. 4 is an enlarged side view of a main part of the cart.

FIG. 5 is an explanatory view showing a relation between a concave groove of a guide rail and a top chain.

FIG. 6 is a related explanatory view of a concave groove of a guide rail and a bogie guide member.

FIG. 7 is a side view of the self-propelled bogie device according to the second embodiment.

FIG. 8 is a front view of the cart.

FIG. 9 is a diagram illustrating the relationship between the concave groove of the guide rail and the top chain.

FIG. 10 is an explanatory view related to a concave groove of a guide rail and a bogie guide member.

FIG. 11 is a side view of a conventional self-propelled bogie device.

FIG. 12 is a side view of another conventional self-propelled bogie device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Dolly 1A ... Dolly main body 2 ... Power supply cable 3 ... Winding drum 3A ... Winding drum motor 4A, 4B Guide roller 5 of power supply cable 5 Top chain 6A, 6B, 6C, 6D Guide roller 7 of top chain 7, 8 Fixing member 9 Guide rail 9A ··· Groove 10 ···· Anchor bolts 11 and 12 ··· Tread plate 15 ···· Guide rail 15A ··· Groove W ····· Wheel M ····· Wheel drive motor S ... Axle G ... Guide member for bogie traveling guide F ... Floor surface

Claims (3)

[Claims] 1. A self-propelled carriage provided with a winding drum for winding a power supply cable connected to an external power supply, reciprocates along a groove of a guide rail provided on a floor surface. In the trolley device, the trolley is provided with a guide roller for guiding an intermediate portion of a long cover member, and both end portions of the cover member guided by the guide roller are provided at both ends of the traveling path of the trolley, respectively. The power supply cable is fixed to the floor surface, and with the reciprocation of the bogie, the power supply cable is fed out of the winding drum into the groove, or is taken out from the groove and wound on the winding drum, and the cover member is Along with the traveling of the bogie, the bogie is rolled into the bogie from the front side in the running direction, orbits the guide roller, protrudes onto the groove from the rear side, and covers the groove. Toss Self-propelled truck equipment. 2. The self-propelled bogie device according to claim 1, wherein the concave groove is formed below an upper surface of the floor surface. 3. The self-propelled bogie device according to claim 1, wherein the cover member is a top chain.