JPH08113310A - Carrying facility - Google Patents

Abstract

PURPOSE: To provide a carrying facility the structure of which is simple, and the article loading part of a truck carrying articles can be always held in the horizontal condition not only in the horizontal section but in the inclined section. CONSTITUTION: The space, i.e., the difference of height of upper and lower a pair of guide members 11a, 11b for running a truck in a suspended state is set to be H in the horizontal section, and the difference of height, i.e., the difference of length of first and second suspending means 21a, 21b is also set to be H. The inclination θ2 of the guide members 11a, 11b in the inclined section is set up so that the angle between the line connecting together wheels 23a, 23b and the horizontal direction is held equal to that in the horizontal section, and hence this facility is constituted so that the article loading part of the truck is carried while being held in the horizontal condition.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transport facility suitable for transporting and sorting articles in a collection / delivery center for various articles, a warehouse, and the like. The present invention relates to an equipment structure for stably traveling in a horizontal direction and an inclination direction along a guide member such as a erected guide rail.

[0002]

2. Description of the Related Art At a collection / delivery center or the like, a dolly on which goods are loaded and unloaded can be run on the floor, or can be hung on a guide rail or the like installed on a ceiling or the like to carry or transport goods. Sorting is done. If the cart is only moved horizontally, it is possible to reduce the inclination and sway of the entire cart regardless of whether it is traveling on the floor or suspended, and it is possible to prevent articles from falling or falling. However, when articles are transported or sorted on, for example, the first floor and the second floor, it may be necessary to move the truck up and down depending on the restrictions of the building. If the truck is run along the slope in the ascending / descending section, the entire truck will run in an inclined state, and as a matter of course, accidents such as the load of the placed article falling or falling will occur. . In order to prevent such inconvenience, various proposals have been conventionally made.

For example, a "cargo-carrying carrier truck" disclosed in Japanese Utility Model Publication No. 4-47020 is one in which a cabin is run along a pair of upper and lower guide rails laid on a road surface at a predetermined interval. . In summary,
In the cabin, a pair of upper and lower parallel link mechanisms, a pair of left and right horizontal link mechanisms, and a vertical link mechanism in the center of the cabin are provided. Even in the section laid in, the cabin is transported without being tilted by the action of each link mechanism.

Further, the "overhead traveling vehicle" disclosed in Japanese Utility Model Laid-Open No. 6-39874 discloses a traveling vehicle traveling along a rail installed on the ceiling, and a vehicle body suspended from the traveling vehicle. It is intended to run horizontally. The outline is as follows.While the vehicle travels horizontally, the wheels rotate on the rails, and in the elevator section, the vehicle travels by a pinion gear that meshes with a rack provided on the rail, and the vehicle suspended by the vehicle. The trolley body is suspended between the sprocket on the main body and the sprocket on the traveling trolley to suspend the trolley body, and when the traveling trolley tilts, the trolley body is leveled in cooperation with the sprocket. It is composed of an endless chain etc.

[0005]

However, the above-mentioned conventional "cargo / carriage carrier truck" and "overhead traveling vehicle" each have the following problems. That is, the "cargo / carriage carrier truck" maintains the cabin horizontally in the ascending / descending section by the plurality of link mechanisms. Since a traveling device that travels along the upper guide rail is provided separately from the cabin, and the traveling device drives the cabin to travel, the structure is complicated and the number of parts increases. In particular, the link mechanism causes a complicated structure and an increase in the number of parts. Therefore, there are various problems such as an increase in the number of production steps and troublesome maintenance. Further, since the deformation of the link mechanism from the horizontal section to the elevating section is performed by the guiding action of the upper guide rail and the lower guide rail, a pair of upper and lower guide rails are required at a predetermined interval in the horizontal section and the elevating section. Therefore, when this method is applied to overhead traveling, the lower guide rail must be laid considerably downward. Therefore, the passage is not opened even after the cabin has passed, and the advantage of using it for overhead traveling is halved.

On the other hand, in the above-mentioned "overhead traveling vehicle", two types of drive mechanisms of wheels and pinion gears are required for traveling of the traveling carriage, and moreover, the number of parts such as the carriage main body, sprocket and endless chain is large, and the structure is large. In addition to being complicated, it has the same problems as described above. Moreover, since the carriage main body is held horizontally by its own weight, it is kept horizontal when the entire surface of the carriage main body is evenly weighted, but becomes difficult to hold horizontally when the weight is unevenly distributed. . Therefore, it is difficult to apply the method of placing articles on a traveling carriage for transportation, sorting, and the like. In addition, when moving from the horizontal section to the elevating section, the traveling carriage should incline slightly from the horizontal state and then shift to the horizontal state, which is also difficult to apply to the transportation and sorting of articles as described above. Is. It is an object of the present invention to provide a transportation facility which has a simple structure and can always hold the article mounting portion of a trolley for transporting articles in a horizontal state not only in a horizontal section but also in a vertical section.

[0007]

The above object of the present invention is to set a desired height difference (H) in a horizontal section in which a carriage (2) for conveying articles is moved horizontally, and the carriage (2) is In the elevating section which is obliquely moved up and down, a pair of upper and lower elongate guide members (11a, 11b) installed in an inclined state at a desired angle (θ2) and one of the elongate guide members (11a) are provided. Wheels (23
a) a first suspension member (21a) and a second suspension member (21b) having a wheel (23b) traveling along the other of the longitudinal guide members (11b), with a relative height Is set to the invariable height difference (H), and a trolley (2) suspended by the first and second suspension members (21a, 21b) is provided, and the trolley (2) is the horizontal section. The guide member (11) in the ascending / descending section is maintained so that the angle formed by the line connecting the wheels (23a, 23b) and the horizontal direction during movement is maintained in the ascending / descending section.
This is achieved by the transport facility (1) characterized by setting the inclination angle (θ2) of a, 11b).

[0008]

In the transport facility according to the present invention, the interval between the pair of upper and lower guide members for moving the carriage in a suspended state, that is, the height difference is set to a predetermined value in the horizontal section, while the first one is provided on the carriage. Since the height difference between the wheels provided on the first and second suspension members, that is, the difference between the lengths of the suspension members is set to the same value, the carriage can be stably run in a horizontal state in the horizontal section. . Further, in the ascending / descending section, the inclination angles of the pair of upper and lower guide members correspond to the interval between the suspension members and the height difference between the line connecting the wheels and the horizontal direction when the carriage moves in the horizontal section. Since the angle is set so as to be held even in the ascending / descending section, it is possible to hold the article mounting portion of the trolley in a horizontal state even in the ascending / descending section and stably travel. The traveling of the cart with the article placing section horizontal is performed by selecting the height difference between the pair of upper and lower guide members and the installation interval and height difference between the two suspension members, so the configuration of the entire transportation facility is greatly simplified. Can be converted. Also,
Since the guide member is above the carriage, the guide member does not obstruct the passage, and the interval between the guide members in the ascending / descending section is narrower than that in the horizontal section, so that the lower guide member does not become another obstacle. Therefore, the actual fairness 4-47
Compared with the conventional example described in Japanese Patent Laid-Open No. 020, the occupied area is narrower, which is advantageous in terms of arrangement.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a transfer facility to which the present invention is applied will be described below with reference to FIGS. 1 is a side view of the main part showing the configuration of the transfer facility, FIG. 2 is a sectional view of the main part showing the configuration of the transfer facility, and FIG. 3 is a side view showing the transition operation from the horizontal section to the lifting section. 4 is a side view showing the transition from the ascending / descending section to the horizontal section, and FIG. 5 is a perspective view showing the configuration of the carriage. First, the configuration of the transportation facility 1 in the horizontal section will be described. When the structure of the transfer facility 1 is roughly divided, as shown in FIGS. 1 and 2, a pair of upper and lower guide members 1 provided in parallel in the vicinity of a ceiling A or the like at a desired interval, that is, a height difference H.
1a and 11b, and a trolley 2 traveling in the arrow X direction, for example, in a state of being suspended from the guide members 11a and 11b.

A pair of suspension members 21a, 21 are provided at a desired interval L between the front end and the rear end of the top plate 10 provided on the upper portion of the carriage 2.
b is provided upright, and wheels 23a and 23b are rotatably provided at the ends of the suspension members 21b and 21b. As shown in FIG. 2, fitting grooves 25a and 25b having an arc-shaped cross section are formed on the outer peripheral surfaces of the wheels 23a and 23b, respectively.
The upper surfaces of the guide members 11a and 11b are engaged with each other so as not to fall off. Therefore, each guide member 11
Although the wheels a and 11b are provided near the ceiling A, the wheels 2
Since 3a and 23b straddle each other, it is not possible to hang them straight from above. For example, as shown in FIG. 2, the arms 13a and 13b whose one end is fixed to the wall surface are laterally supported. ing.

Further, one suspension member 21a is suspended on the upper guide member 11a, and the other suspension member 21b is suspended on the lower guide member 11b. In this suspended state, the carriage 2 needs to be horizontal. There is. Therefore, the suspension member 21
The lengths of a and 21b are set to the same height difference as the height difference H of the pair of guide members 11a and 11b, so that the carriage 2 does not tilt in the horizontal section as shown in FIG.
The suspension members 21a and 21b are made of, for example, steel material,
Unlike ropes, it is designed so that there is no bending deformation. Moreover, since the top plate 10 of the carriage 2 is provided at the front end and the rear end thereof with a space L therebetween, even if the articles placed on the carriage 2 are biased toward the front end or the rear end, The weight of the article prevents the article from being inclined, and the article can be stably conveyed in a horizontal state. Regarding the configuration of the trolley 2,
The details will be described later with reference to FIG.

Next, the structure of the transition position from the horizontal section to the ascending / descending section will be described. At the transition position from the horizontal section to the ascending / descending section, the pair of guide members 11a and 11b are bent in an inclined shape as shown in FIG. 3, but the bending positions of the respective guide members 11a and 11b are not the same position. .
That is, since the space between the suspension members 21a and 21b is set to the interval L, the carriage 2 is inclined unless the horizontal section moves to the elevating section at the same time. Therefore, the space between the bending position Pa of the guide member 11a and the bending position Pb of the guide member 11b is set to be substantially the same as the space L between the suspension members 21a and 21b.

Next, the bending angles of the guide members 11a and 11b will be described. The bending angle of the guide members 11a and 11b is determined by the distance L between the suspension members 21a and 21b and the height difference H. That is, looking at the angle θ1 formed by extending the line La connecting the centers of the wheels 23a and 23b and the floor surface (horizontal plane), the angle θ1 is determined by the suspension members 21a, 2
It changes corresponding to the interval L of 1b and the height difference H. On the other hand, the bending positions of the guide members 11a and 11b need to be shifted by the distance L for the above reason. If the guide members 11a and 11b are bent at the same angle as the angle θ1 in this state, the guide members 11a and 11b overlap and the wheel 23b cannot rotate. Become. Therefore, the guide member 1
When the inclination angle of 1a and 11b is θ2, the relationship of θ1> θ2 is set. More specifically, if the distance L between the suspension members 21a and 21b is reduced or the height difference H is increased and the angle θ1 is increased, the guide member 11 is obtained.
The inclination angles θ2 of a and 11b become large, and the carriage 2 can be raised at a steep angle while being horizontal. On the other hand, when the distance L between the suspension members 21a and 21b is set to be large and the height difference H is set to be small, the angle θ1 becomes a low angle, and the inclination angle θ2 of the guide members 11a and 11b is also a low angle. become. In this case, the trolley | bogie 2 will come to rise moderately at a low angle with a horizontal state.

Next, referring to FIG. 4, the transition position from the ascending / descending section to the horizontal section will be described. Even at the transition position from the ascending / descending section to the horizontal section, the wheels 23a and 23b must be simultaneously moved to the horizontal section. Therefore, the interval L is set between the bending position Pa of the guide member 11a and the bending position Pb of the guide member 11b in the same manner as described above. With such a configuration, the carriage 2 can smoothly transition from the ascending / descending section to the horizontal section without inclining.

Next, the structure of the carriage 2 will be described with reference to FIG. The trolley | bogie 2 in a present Example is equipped with the conveyor belts 3 and 4, and it is comprised so that articles can be loaded and unloaded. That is, four columns 5
Lower portions of a, 5b, 5c and 5d are fixed to the frame portions 6a and 6b, and upper portions thereof are fixed to the top plate 10. And the frame portion 6
Motors Ma and Mb which are controlled to rotate in the same direction or opposite directions are provided in a and 6b, and the conveyor belt 3 is wound between a roller 7a and a free roller 9a which rotate in conjunction with the motor Ma. There is. Further, the conveyor belt 4 is wound around the roller 7b and the free roller 9b which rotate in conjunction with the motor Mb. The free rollers 9a and 9b are rotatably supported by the frame portions 6a and 6b and a bearing member 8 fixed at a substantially central portion between the frame portions 6a and 6b.

By providing the trolley 2 having the above structure, the trolley 2 is conveyed to a predetermined position and stopped, and the motors Ma, M
When b is rotated in the same direction, the conveyor belts 3 and 4 run in the same direction, and articles can be loaded and unloaded. Further, when one of the motors Ma and Mb is rotationally driven and the other is stopped, the conveyor belt corresponding to the rotationally driven motor runs in the same manner as described above to load or unload the articles on one conveyor belt. be able to. Therefore, the transport facility 1 shown in the present embodiment not only transports articles but also functions as sorting facility by selectively rotating the motors Ma and Mb.

To drive the carriage 2, either one or both of the wheels 23a and 23b may be linked to a motor, and hard rubber or the like is suitable as the material of the wheels 23a and 23b. As described above, the transport facility 1 according to the present embodiment does not need a link mechanism having a complicated structure at all, and does not have a member such as an endless chain that easily bends and deforms. It can be held horizontally and run in a stable state.

[0018]

As described above, in the transport facility according to the present invention, the interval between the pair of upper and lower guide members for traveling the carriage in a suspended state, that is, the height difference is set to a desired value in the horizontal section. While setting, the first and second provided on the trolley
The height difference of the suspension member, that is, the difference in length is also set to the same value, and the inclination angle of the pair of upper and lower guide members in the ascending / descending section is set to correspond to the interval between the suspension members and the height difference, The angle formed by the line connecting the wheels and the horizontal direction when moving in the horizontal section is set so as to be maintained even in the vertical section. Therefore, in the horizontal section, the height difference of the guide member and the height difference of the suspension member are the same, so that the cart can travel stably with the article placing section horizontal. Further, in the ascending / descending section, since the inclination angle of the guide member is set in accordance with the height difference of the suspension member, it is possible to stably run the article placing portion of the cart in a horizontal state. The traveling of the trolley is performed by selecting the height difference between the pair of upper and lower guide members and the installation interval and height difference between the two suspension members. Therefore, the link mechanism having a complicated structure that deforms according to the inclination angle and the inclination There is no need for an endless chain to make adjustments. Therefore, the configuration of the entire transfer facility can be greatly simplified, and the number of parts and work steps can be reduced,
There are various effects such as easy maintenance.

[Brief description of drawings]

FIG. 1 is a side view showing a configuration of a transportation facility that is an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a main part showing a configuration of a transfer facility.

FIG. 3 is a side view showing a configuration of a transition position from a horizontal section to a lifting section.

FIG. 4 is a side view showing a configuration of a transition position from an elevating section to a horizontal section.

FIG. 5 is a perspective view showing a configuration of a carriage.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Conveyance equipment 2 Cars 3,4 Conveyor belts 5a-5d Supports 6a, 6b Frames 7a, 7b Rollers 8 Bearing members 9a, 9b Free rollers 10 Top plates 11a, 11b Pair guide members 21a, 21b Suspension members 23a, 23b Wheel 25a, 25b Fitting groove Ma, Mb Motor L Interval H Height difference θ1 Angle corresponding to height difference of suspension member θ2 Angle of inclination of guide member

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Hiroki Shinohara 8-19-20 Higashisuna, Koto-ku, Tokyo Toyo Kanetsu Co., Ltd.

Claims (1)

[Claims] 1. A desired height difference (H) is set in a horizontal section in which a carriage (2) for transporting articles is horizontally moved, and a desired angle is set in a lift section in which the carriage (2) is slanted up and down. A first pair having a pair of upper and lower elongated guide members (11a, 11b) installed in a state of being inclined at (θ2), and a wheel (23a) traveling along one of the elongated guide members (11a). Suspension member (21a)
And a second suspension member (21) having wheels (23b) running along the other of the elongated guide members (11b).
b) is set to the height difference (H) whose relative height is unchanged,
A carriage (2) suspended by the first and second suspension members (21a, 21b), wherein the carriage (2) moves the wheels (23) during the horizontal section movement.
a, 23b) The inclination angle (θ2) of the guide member (11a, 11b) in the elevating section is set so that the angle formed by the line connecting the sections and the horizontal direction is retained in the elevating section. Characteristic transportation equipment (1).