JP3202346B2 - Transfer device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer device used as a place for storing products and semi-finished products.

[0002]

2. Description of the Related Art In a factory for machining large articles, an article (article) to be processed is placed on a wide yard, and the placed article is set on a processing machine.

[0003] More specifically, articles are placed on a pallet and placed on a wide area of the floor, and when necessary, the articles are lifted together with the pallet from the yard by an overhead traveling crane and set on a processing machine. ing.

[0004]

However, every time an article is set on a processing machine, it is inefficient to transport articles scattered over a wide range to the processing machine, which is not good in terms of productivity. This tendency is higher as the number of processing machines increases, and improvement is desired.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a transport device capable of efficiently moving a predetermined article from a place to a predetermined site. It is in.

[0006]

Means for Solving the Problems] conveying apparatus according to claim 1 in order to achieve the above object, an article receiving area follows the article transfer region, the curvature article storage formed by circuit course with a small corner radius and the traveling path of, in this running path
An engaging path provided continuously along the engaging path, and slidable with the engaging path.
The guide is engaged with the guide and guided along the engagement path, and the guide is continuously arranged in series along the traveling path, and moves forward and backward in the traveling direction.
It is connected rotatably in the row direction and connected in a ring.
While the vehicle is still moving, the direction of travel is
Is includes a plurality of carriages that can travel, and a transfer <br/> motion means Before moving the platform car with dolly has a Gawawa on both sides, the traveling direction
It has steered wheels in the front and back, and the direction adjacent to each other in the traveling direction is
To the front and rear of the vehicle in the traveling direction.
The steering wheel is configured to have an upper plate whose side is notched diagonally.
Are engaged from the rotation fulcrum that rotatably connects the upper plates to each other.
To a shaft that extends in the direction of travel that leads to the guide,
The rotation path is self-rotating through a wheel support that extends at right angles to the engagement path.
The steering wheel is used as a guide for traveling on the engagement path.
In that a configuration which is steered in accordance traveling direction.

[0007]

According to the first aspect of the present invention, the articles are placed on the carriage from the article receiving area by placing the articles on the respective carts. When necessary, the carriage is moved to guide, for example, a specific article to the article delivery area. As a result, the article can always be transported from the fixed position to the predetermined portion, and the removal from the article storage space becomes efficient. Moreover, the transport device
Has side wheels on both sides of the bogie, and pivots the bogie's connection back and forth
A structure having a steered wheel that rotates as a fulcrum, and a bogie
Notch in the upper plate to prevent interference.
On roads with corners with small radius of curvature
To operate the truck easily.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to one embodiment shown in FIGS.

FIG. 1 is an overall plan view of a transfer device also serving as an article storage space to which the present invention is applied, together with a part in a factory. An elongated traveling path 2 extending symmetrically in the Y direction with the yard 1 as a boundary is provided at a portion of the floor portion 1a adjacent to the yard 1, which is a receiving area. The traveling path 2 has a circular course shape, and corners 2a, 2a having a small radius of curvature are provided at both ends. The one of the corners on the corner 2a has reached the lifting position 3 (article delivery area) and forms a circling course that follows the yard 1 and the lifting position 3.

[0010] A track 4 (engagement path) is provided along the orbiting course at the center of the road surface of the traveling path 2. The track 4 is constructed by continuously providing a plate member 6 having a groove 5 having an open top as shown in FIGS.

A plurality of, for example, 2
One carriage 7 is continuously arranged in series along the shape of the traveling path 2. The carts 7 are rotatably connected to each other in the traveling direction, and can travel on the traveling path 2 while being connected, that is, in a state of being connected in a ring shape. . The structure of the cart 7 is shown in FIGS.

To explain the structure of the cart 7, reference numeral 8 denotes an upper plate on which, for example, an article A as a workpiece (shown only in FIG. 3) is placed. The front and rear portions of the upper plate 8 in the traveling direction are:
When the bogie 7 travels on the corners 2a, 2a of the traveling path 2,
Corners on both sides are cut diagonally to avoid interference. Due to these notches 8a, the upper plate 8 has a substantially hexagonal shape.
Side wheels 9a are provided on both sides of a lower portion that is the center of the carriage 7 in the traveling direction.

Arms 9 project from the center of the front and rear portions of the upper plate 8 (portions in the front and rear directions of the carriage 7). Among them, a U-shaped joint piece 10 in which the plate portions are arranged vertically is provided at the arm end on the front side.
At the rear end of the arm, there is provided a strip-shaped joint piece 11 having a shape that can be inserted into a gap between the joint pieces 10. In addition, fitting holes 12 are provided in the plate portions of the joint pieces 10 and 11 so as to engage with each other. A joint piece 10 and a joint piece 11 before and after the adjacent bogie 7 are fitted. The fitted joint pieces 10 and 11 are connected by a shaft 13 that rotatably fits each of the fitting holes 12, and is connected rotatably with respect to the traveling direction around the shaft 13 as a fulcrum. ing. 13a is a shaft 1 provided on each of the joint pieces 10 and 11.
3 is a bearing for rotatably supporting 3.

The lower end of the shaft 13 extends downward to near the groove 5. The lower end of the shaft 13 has a groove 5
And a wheel supporting portion 14 extending in a direction perpendicular to the direction. Steered wheels 17 (running wheels) are rotatably supported at both ends of the wheel support portions 14 via axles 16 extending in a direction perpendicular to the track 4. Thereby, each bogie 7 can travel on the traveling road portions on both sides of the groove 5 with the steered wheels 17 and 17 and the side wheels 9 and 9.

An arm 18 extending in a direction perpendicular to the axle 16 protrudes from a central portion on both sides of the wheel support portion 14. A pair of guide rollers 19, 19 inserted into the groove 5 are rotatably supported at the lower portions at both ends of the arm 18. Thereby, the arm 18 can be displaced (guide) according to the change of the trajectory 4 as shown in FIG. This arc
The displacement of the arm 18 is transmitted to the shaft 13, and the steered wheels 17 are steered according to the displacement of the arm 18.

In the floor portion 1a adjacent to each straight region 4a at the center of the track 4, a drive device 20 for moving the carriage 7 along the traveling path 2 is provided. Each of the driving devices 20 has a structure in which a protrusion 21 provided on the lower portion of the upper plate 8 of each carriage 7 is engaged so as to feed the carriage 7. These drive units 20, 20
Are the same, and the structure of the driving device 20 is shown in FIGS.

The driving device 20 will be described.
Reference numerals 2 and 22 denote two pairs of driving sprockets rotatably mounted on the floor portion 1a corresponding to one end of the linear region 4a in a relationship parallel to the track 4, and 23 and 23 correspond to the other end. This is a pair of driven sprockets rotatably mounted on the floor portion 1a in a parallel relationship with the track 4. A drive source, for example, an output portion of an electric motor 26 having a speed reduction mechanism, is connected to the sprockets 22, 22.
3 is provided with a tension mechanism 27.

The sprockets 22 and 23 are mounted on the bogie 7
Are arranged on both sides of the projection 21. Endless chains 24 and 25 are stretched between the sprockets 22 and 23. Thus, the chains 24, 25 are bridged so that the portions 24a, 25a stretched upward are arranged on both sides of the protrusion 21 of the carriage 7.

A rod 28 is connected between the chains 24 and 25 at a predetermined interval.
According to the operation, the rod-shaped members 28 are sent out in a predetermined direction indicated by an arrow Z in FIG. The rod-shaped member 28 is connected to the protrusion 21 of the carriage 7 located in the linear region 4a.
, And each carriage 7 is caused to travel along the travel path 2. Thereby, the goods A placed on each carriage 7
Can be guided to the lifting position 3.

A transfer device, for example, a hoist crane 30 is installed on an intermediate floor portion 1a between the lifting position 3 and a processing machine 29 for processing an article. Can be lifted and transferred to the processing machine 29. In addition,
In the drawings, reference numeral 31 denotes a cover for covering the upper side of the steered wheels 17;
Reference numeral denotes a regulating plate provided between the chains 24 and 25 for preventing the chain from shifting. Next, the operation of the thus configured transport device will be described.

First, a self-propelled vehicle (not shown) on which the article A is mounted enters the yard 1. Next, the electric motor 26 is turned on and off to dispose the carriage 7 at a predetermined portion of the yard 1. Then, the articles to be processed by the processing machine 29 are put on the carts 7 from the self-propelled cars that have entered the yard 1 on the carts 7. These operations are repeated for each article A. Thereby, the article A mounted on the self-propelled vehicle is placed on the entire traveling path 2. That is, the article A received from the yard 1 is placed on the traveling path 2 as an article storage area.

When the article A placed in this way is machined by the machining machine 29, the electric motor 26 is turned on and off to move the carriage 7 and, for example, the specific article A can be lifted by the hoist crane 30. To the proper position, that is, the lifting position 3.

Then, the hoist crane 30 is operated, the article A of the carriage 7 at the lifting position 3 is lifted and set at a predetermined position of the processing machine 29, and then the processing machine 29 is operated.

Thus, the goods A can be placed using the cart 7, and unlike the conventional method of carrying the goods A scattered on the floor 1a, the goods A are always moved from a fixed position to a predetermined position. Can be carried.

[0025] This makes it possible to carry out efficiently from the article storage place, and to improve productivity. In particular, when the number of processing machines 29 is large, the effect is great.

Moreover, the carriage 7 provided with the notches 8a, 8a
Is adopted, a traveling path 2 having a corner 2a having a small curvature is used.
, A large number of carts 7 can be arranged without difficulty, and more articles A can be placed.

[0027]

As described above, according to the first aspect of the present invention, articles can be put on the carriage by placing the articles on the respective carts from the article receiving area. What is necessary is just to move the trolley, guide it to the article delivery area, and carry the article from the home position to the predetermined part. Therefore, it is possible to carry out the article from the article storage space efficiently. Moreover, it has side wheels on both sides of the bogie,
Structure with a steered wheel that turns as a turning fulcrum
Notch on the upper plate so that the bogie does not interfere.
Construction, even on a road with a small radius of curvature,
Many trolleys can be operated without difficulty.

[Brief description of the drawings]

FIG. 1 is a plan view showing a transfer device according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a portion connecting the trucks of the embodiment with each other.

FIG. 3 is a sectional view of the same part.

FIG. 4 is an exemplary perspective view showing around a steered wheel according to the embodiment;

FIG. 5 is a view for explaining that the steered wheels are steered according to a trajectory.

FIG. 6 is a plan view of a driving device for moving the carriage.

FIG. 7 is a front view as viewed from an arrow AA line in FIG. 6;

[Explanation of symbols]

2 ... running path 4 ... track (engagement path)
7 ... trolley 9a ... side wheel 16 ... shaft
17 ... Steering wheel 18 ... Arm 19 ... Guide roller
20 ... Driver 29 ... Processing machine 30 ... Hoist crane
A: Goods (article)

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-64-60503 (JP, A) Japanese Utility Model 2-24873 (JP, U) Japanese Utility Model 2-25320 (JP, Y2) (58) Field (Int.Cl. ⁷ , DB name) B65G 17/10 B65G 35/08 B65G 1/133

Claims (1)

(57) [Claims] 1. A goods receiving region follows the article transfer region, a travel path for goods storage space, which is formed in the circuit course, provided continuously along said travel path engaging with a small corner radius of curvature A slidable engagement with the engagement path and guided by the engagement path.
Guides are arranged in series along the running path, and
It is connected rotatably in the traveling direction before and after the row direction,
The guide is kept on the running path while the
A plurality of carriages that can travel while traveling direction are steering by de, and a moving means Before moving the carriage, the carriage has a Gawawa on both sides, the steering wheel back and forth traveling direction
And adjacent to each other in the traveling direction rotate in front and rear of the traveling direction
It is freely connected, and both sides of the front
A pivoting mechanism configured to have a missing upper plate, wherein the steered wheels pivotally connect the upper plates to each other.
Progression extending from a fulcrum to the engagement path and leading to the guide
Extending in a direction perpendicular to the engagement path on a shaft rotatable in the direction
The steering wheel is rotatably supported via a wheel support portion, and the steered wheels follow the guide traveling along the engagement path.
It is characterized by being steered in the traveling direction
Transport device .