JPH07165068A - Carrying equipment using truck - Google Patents

Abstract

PURPOSE:To form the rail width of a curved route and a straight route equal to each other by rotating each wheel along a curve at the time of traveling a curve, and moving one of a bilateral pair of wheels so as to come close and separate to/from the other with a guide device. CONSTITUTION:A fore and aft pair driving wheels 3 are arranged in one side of the lower surface of a main body 2 of a truck 1, and a fore and aft pair of idly rotating wheels 4 are arranged in the other side thereof. The driving wheels 3 are respectively supported by a vertical core 10 freely to be turned around the vertical core 10, and rotated by a traveling driving device 11 fitted to a case 7. Plural guide rollers 13 facing to both side surfaces 5a of a rail 5 are fitted to a bracket 12 from the case 7 freely to be idly rotated. On the other hand, the idly rotating wheels 4 are fitted to the bracket 14 by an axle 15, and fitted to a slide plate 16, which supports the bracket 14 at the main body side, through a vertical shaft 25 freely to be turned and freely to the slid in the truck width direction. At the time of traveling a curve, the idly rotating wheels 4 are moved to come close and separate to/form the driving wheel 3 to enable the smooth travelling at a curve.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carrier-equipped transport facility comprising, for example, a rail laid in a factory and a trolley supported and guided by the rail to freely travel on a fixed route. .

[0002]

2. Description of the Related Art Conventionally, as a bogie of this type, as shown in FIG. 7, for example, rockers 42 are attached to the front and rear of a main body 40 via vertical axes 41, and wheels 43 are provided at both ends of these rockers 42.
There is provided a structure with the attached. According to this conventional structure, by placing the wheels 43 on the pair of left and right rails 44, the carriage 45 can travel on the fixed route 46. Then, in the curve path portion 47 in the constant path 46, each rocking body 42 is automatically rocked so that the longitudinal direction of these rocking bodies 42 faces the center of curvature 48 of the curve path portion 47. I was running.

As another conventional structure, for example, as shown in FIG. 8, there is provided one in which each wheel 43 is attached to a main body 40 so as to be pivotable via a vertical axis 49. According to this other conventional structure, in the curve path portion 47, each wheel 43 turns separately along the curve curve.

[0004]

In the conventional structure using the oscillating body 42 (FIG. 7), a space (dead space) for allowing the oscillating body 42 and the wheels 43 to oscillate is provided on the bottom side of the main body 40. It must be wide, which complicates the structure of the body 40 and weakens its strength.

Further, in the conventional structure in which the wheels are individually turned (FIG. 8), since each wheel 43 turns individually and at each angle, in order to prevent the wheel from derailing in the curve path portion 47, The rail width T of at least one of the rails 44 of the curved path portion 47 must be made wider than the rail width t of the linear path portion, which is troublesome to manufacture and construct.

The object of the present invention is to reduce the space (dead space) for allowing the rocking of wheels and the like, and to make the rail width of the carb path part the same as that of the straight path part. In addition, the present invention is to provide a carrier-equipped transport facility that can stably arrange the wheel drive device.

[0007]

In order to achieve the above-mentioned object, the carriage equipment of the present invention is provided with a plurality of wheels on the left and right sides of the main body so as to be respectively rotatable in the front-rear direction and support these wheels. A pair of left and right rails are provided, and a guide device for guiding each wheel along the rail is provided between the rail side and each wheel side, and at least one of a pair of front and rear left and right wheels is provided. A traveling drive device is provided on one of the wheels, and the other wheel is
It is configured so that it can be moved far and near together with the guide device.

[0008]

According to the above-described structure of the present invention, the traveling of the trolley can be stably performed via four or more wheels. When the truck travels along the curve path, each wheel turns separately and follows the curve curve of the rail. Further, in the curved path portion, one of the paired wheels on the left and right moves perspectively with respect to the other wheel together with the guide device. Even if it is the same as the section, or even if the rail interval of the curve path section is the same as that of the straight path section, the traveling of the trolley can be smoothly carried out without any trouble. And the traveling drive device
Since it is provided on the other wheel that does not move into perspective, it can be arranged firmly and stably and easily.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 to 6, reference numeral 1 denotes a trolley, and a pair of front and rear (a plurality of front and rear) drive wheels 3 are arranged on one side of a lower surface of a main body 2 thereof, and a pair of front and rear (a plurality of front and rear) on the other side. The idle wheels 4 are provided, and the wheels 3, 4 are placed on a pair of left and right rails 5 so that they can travel on a fixed path 6. Here, a pair of left and right rays
As shown in FIG. 6, in the rule 5, both the linear path portion 33 and the curved path portion 32 have the same rail width W (same or almost the same) and both rail intervals K are the same (same or almost the same). It is set up.

In FIGS. 1 to 4, both drive wheels 3 are attached to a case 7 having an open lower surface via a lateral axle 8, and the case 7 is vertically supported by the main body 2 side. Is fixed to the lower end of the rotary shaft 9. Therefore drive wheels 3
Is rotatable about the longitudinal axis 10 separately. Both cases 7
A traveling drive device (motor or the like) 11 is attached to each of these, and these traveling drive devices 11 are interlocked with the corresponding axles 8. Further, the bracket 12 extending from the case 7 includes a plurality of guide rollers 13 facing the both side surfaces 5a of the rail 5.
Is rotatably attached via a vertical pin.

1 to 3 and 5, both idle wheels 4 are shown.
Is attached to the bracket 14 via the lateral axle 15.
The bracket 14 is attached to the slide plate 16 supported on the main body 2 side through the vertical axis 17. That is, the base plate 18 is fixed to the main body 2, and the base plate 18 is fixed.
An elliptical through hole 19 that is long in the width direction of the carriage is formed in the toe 18. A guide rail 20 long in the vehicle width direction is attached to the lower surface of the base plate 18 in front of and behind the through hole 19.
The slide plate 16 has sliding members 21 on both guide rails 20.
It is supported and guided through and is slidable in the width direction of the carriage. Wide LM due to the guide rail 20 and the sliding body 21.
Make up a guide. A plurality of load balls are arranged between the guide rail 20 and the sliding body 21 as required.

The vertical axis 17 standing from the center of the upper surface of the bracket 16 is a bearing arranged on the slide plate 16.
22 is inserted, and the bearing 22 is clamped between the retaining washer 23 attached to the upper end. The bearing 22 is fixed to the slide plate 16 side by a bearing retainer 24, and the bearing retainer 24 and the like project into the through hole 19.

As a result, the idle wheel 4 is slid onto the slide plate.
It is possible to separately turn around the vertical axis 25 with respect to the girder 16.
Further, with respect to the driving wheels (at least one of the wheels that form a pair at least on the front or rear side),
The idle wheel (the other wheel) 4 is configured to be movable in a perspective manner together with a guide device (described later).

A plurality of guide rollers 26 facing both side surfaces of the rail 5 are attached to the lower end of the bracket 14 so as to be freely rotatable through vertical pins. The side surfaces 5a and the guide rollers 13 and the like, and the side surfaces 5a and the guide rollers 26 and the like constitute guide devices 27 and 28 for guiding the wheels 3 and 4 along the rails 5. The rail 5 is integrated by a connecting member 29, a power feeding device 30 is arranged on the connecting member 29 side, and a current collecting device 31 facing the power feeding device 30 is provided on the main body 2 side.

Next, traveling work in the above embodiment will be described. A truck 1 mounted on a rail 5 via wheels 3 and 4
Is forced to rotate the drive wheels 3 by the operation of the traveling drive device 11, and thus travels on the fixed path 6 while being guided by the guide rollers 13, 26 to both side surfaces 5a of the rail 5.
At that time, the traveling of the trolley | bogie 1 is performed stably by the both drive wheels 3 and the two freewheel wheels 4, ie, four or more wheels. Furthermore, since the two driving wheels 3 are in contact with the rail 5, two wheel pressures act, and acceleration and deceleration are shortened by utilizing this high wheel pressure to shorten the acceleration distance and deceleration distance. Easy and stable.

Then, when the carriage 1 enters the curve path portion 32 as shown in FIG. 6, the two drive wheels 3 individually turn around the longitudinal axis 10 via the case 7 and the rotary shaft 9. Further, the two idle wheels 4 are separately rotated around the vertical axis 25 through the bracket 14 and the vertical axis 17. That is, all the wheels 3 and 4 turn separately and follow the curve curve of the rail 5. At this time, since the traveling drive device 11 is provided on the other drive wheel 3 that does not perform the perspective movement, the traveling drive device 11 can be arranged firmly, stably and easily.

Further, in the curve path portion 32, an outward lateral pushing force acts on the bracket 14 via the guide roller 26 guided by the rail 5, and the sliding body 21 causes the guide rail to move.
By being supported and guided by 20, the unit of the idle wheel 4 will automatically move outward. As a result, with respect to the inter-wheel distance L _{1 on} the straight path portion 33, the curve path portion is
At 32, the distance L ₂ between the wheels is long, that is, L ₁ <L ₂ , and the rail width W of the curve path portion 32 is changed to that of the straight path portion 33.
Although the width is the same as the rail width,
Even if the rail interval K is the same as the rail interval of the straight route portion 33, the bogie 1 can smoothly travel without difficulty.

Further, when traveling on the curve path portion 32, when both drive wheels 3 are in the curve path portion 32 as shown by H in FIG. 6, these drive wheels 3 are the same inside wheel. -Because it moves on the route 5 (on the same route), there is no speed difference between the two drive wheels 3. Further, as shown by I in FIG. 6, when only one driving wheel 3 is in the carving path portion 32 at the entrance or the exit of the carving path portion 32, there is a slight gap between the two driving wheels 3. Although a speed difference of (3% or less) occurs, speed control of such a speed difference is not necessary.

In the above-mentioned embodiment, the slide type is adopted in order to make the free wheel 4 group movable in the distance and distance.
This may be a swing type or the like. As shown in the above embodiment, a plurality of wheels 3 and 4 are provided on the left and right sides of the main body 2 in the front-rear direction so as to be individually rotatable about the longitudinal axes 10 and 25, and the drive wheels 3 are vertically moved. When interlocked with the traveling drive device 11 located inside the shaft center 10 and capable of swinging integrally with the drive wheels 3, the traveling drive device 11 can be easily arranged by utilizing a wide space on the central portion side below the width of the main body. At the same time, the traveling drive device 11 is not largely swung outward with respect to the width of the main body in the curved path portion 32 and the like, so that safe traveling can always be performed.

[0020]

According to the present invention having the above structure, the trolley has four
Since the vehicle has wheels equal to or larger than the wheels, the traveling can be performed stably. When the truck travels on the curve path, each wheel turns separately and follows the curve curve of the rail, which allows a space (dead space) for allowing the wheels to swing. The main body can have a simple structure and strong strength.

In particular, according to the present invention, at least one of the pair of left and right wheels is
Since it is configured to move far and near together with the guide device,
Even if the rail width of the curve route part is made the same as that of the straight line route part, and even if the rail interval of the curve route part is made the same as that of the straight line route part, there will be no traveling of the bogie. It can be performed smoothly without any trouble, and simplification of production and construction can be achieved. Furthermore, since the traveling drive device is provided on the other drive wheel that does not move far and far, it can be arranged firmly, stably and easily.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of a carriage transport facility according to an embodiment of the present invention.

FIG. 2 is a partially cutaway side view of the carriage transport facility.

FIG. 3 is a plan view of a carriage in the carriage transportation facility.

FIG. 4 is a partially cutaway front view of an idle wheel portion in the carriage transport facility.

FIG. 5 is a partially cutaway side view of an idle wheel portion in the carriage transport facility.

FIG. 6 is a schematic plan view showing a traveling state of the carriage transport facility.

FIG. 7 is a schematic plan view showing a traveling state of the carriage transportation facility according to the conventional example.

FIG. 8 is a schematic plan view showing another conventional example and showing a traveling state of the carriage transportation facility.

[Explanation of symbols]

1 trolley 2 main body 3 drive wheel 4 idler wheel 5 rail 7 case 9 rotating shaft 10 vertical axis 11 traveling drive unit 13 guide roller 16 slide plate 18 base plate 20 guide rail 21 sliding body 25 vertical axis 26 guide roller 27 Guide device 28 Guide device 32 Curve path part 33 Straight path part L ₁ Distance between wheels L Distance between wheels W Rail width K Rail spacing

Claims (1)

[Claims] 1. A plurality of wheels are separately provided on the left and right sides of the main body in a front-rear direction so as to be rotatable, and a pair of left and right rails for supporting the wheels are provided, and a pair of left and right rails are provided between the rail side and each wheel side. A guide device for guiding the wheels along the rails is provided, and at least one of the paired wheels at the front or the rear is provided with the traveling drive device, and the other wheel is provided with respect to the one wheel. The transport equipment using a trolley is characterized in that it is configured to be movable in the distance with the guide device.