JPH0530907U - Trolley positioning device - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] To obtain a positioning device that can be easily installed at low cost even when the traveling path of the truck is long. [Structure] A dolly movably installed along a traveling path is positioned and stopped at a predetermined position. The chain 51 is laid along the traveling path. A sprocket 43 that meshes with the chain 51 is fixed to a support shaft 42 that is rotatably provided on the carriage. The sprocket 43 is an interlocking sprocket 4 fixed to a shaft 46 of a motor 45 via a chain 48.
Connect to 4. A brake 52 is connected to the motor 45, and the sprocket 43 is locked by the brake 52. [Effect] Since the chain is laid on the floor instead of the conventional rack, the cost is low and the assembling to the truck is easy.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a trolley positioning device for positioning and stopping a trolley for transporting articles at a predetermined position, for example.

[0002]

[Prior Art]

 2. Description of the Related Art Conventionally, as an article transporting apparatus for transporting articles such as works stored in a warehouse to a unloading station, there is one shown in FIG. 3, for example. That is, the track 13 is laid on the floor adjacent to the cargo receiving station 11 provided on the warehouse side, and the track 14 is adjacent to the cargo receiving station 12 provided at a position distant from the cargo receiving station 11. Is laid in. A tracked carriage 20 is mounted on each of the tracks 13 and 14 so as to run freely. In order to transfer the tracked carriage 20 from one track to the other track, traverser tracks 15, 16 extending transversely to each track 13, 14 are adjacent to the ends of the tracks 13, 14. Be laid on the floor.

A traverser truck 21 is movably mounted on each of the traverser tracks 15 and 16, and a transfer track 22 for supporting the tracked truck 20 is provided on the upper surface of the traverser truck 21. It is laid so as to form a right angle to 16. As shown in FIG. 4, the transfer track 22 is provided at the same height as the tracks 13 and 14, and the tracked truck 20 on which the cargo W is placed at the cargo receiving station 11 is separated from the cargo receiving side track 13. , And is transferred to the traverser truck 21 on one traverser track. Then, the tracked cart 20 transported to the delivery side track 14 by the traverser cart 21 transfers to the track 14 and the article W is taken out of the cart 20 at the delivery station 12. In this manner, the cart 20 circulates between the cargo receiving station 11 and the cargo delivering station 12, whereby the articles W are sequentially transported.

Conventionally, as shown in FIG. 4, a rack 31 is installed along the traverser track 15 in order to position and stop the traverser truck 21 at a position where the transfer track 22 matches the traverser track 15 or 16. A pinion 32 that meshes with the rack 31 is attached to the traverser carriage 21. That is, when the traverse truck 21 is conveyed to a predetermined position, the rotation of the pinion 32 is stopped and locked, whereby the carriage 21 is stopped at the predetermined position. The carriage 21 itself is driven to be driven by driving the wheels 33 or the pinions 32.

[0005]

[Problems to be solved by the device]

 However, when positioning the bogie by meshing the rack and pinion as in the past, the rack must be laid along a long track, which increases the manufacturing cost of the positioning device. There is a problem. The present invention has been made in view of such problems, and an object thereof is to enable positioning of a bogie with high accuracy at low cost.

[0006]

[Means for Solving the Problems]

 A bogie positioning device according to the present invention is a bogie positioning device for positioning and stopping a bogie, which is movably installed along a traveling path, at a predetermined position, and a chain is laid along the traveling path. The sprocket that meshes with this chain is rotatably attached to the bogie, and the braking means is connected to this sprocket.

[0007]

【Example】

 The present invention will be described below with reference to illustrated embodiments. FIG. 1 is a view showing a traverser carriage in an article transporting apparatus in which a positioning device for a carriage according to an embodiment of the present invention is incorporated, and shows a portion similar to FIG. As described above, the traverser truck 21 has the wheels 33 that roll on the traverser orbit 15, and supports and transports the above-mentioned guided truck.

A support shaft 42 is rotatably provided on a bracket 41 attached to the lower surface of the traverser truck 21, and two main sprockets 43 are fixed to the support shaft 42 at a predetermined interval. .. An interlocking spcket 44 is fixed to the support shaft 42. As shown in FIG. 2, an endless chain 48 is stretched over the interlocking spcket 44 and the interlocking sprocket 47 fixed to the shaft 46 of the motor 45 incorporated in the traverser carriage 21. ..

Each main sprocket 44 meshes with a positioning chain 51 laid along the track 15 on the floor surface. Therefore, the main sprocket 44 is rotated by the drive of the motor 45, and the traverser cart 21 is driven to travel. A brake 52 is attached to the motor 45, and the brake 52 locks the main sprocket 44. An encoder 53 for detecting the number of rotations of the shaft 46 is connected to the shaft 46. The main chain 51 and various other commercially available members can be used, and even if the mileage of the trolley is long and the length of the chain 51 to be laid is long, the laying work can be performed. Is much easier than laying a rack. As the main chain 51, a roller chain is used as shown in a partially enlarged view in FIG.

In order to move the traverser truck 21, the motor 45 is driven to drive the main chain 43 meshing with the positioning chain 51. The movement of the traverser truck 21 to the predetermined position is detected by counting the number of rotations of the shaft 46 of the motor 45 by the encoder 53. When the braking signal is sent to the brake 52 by the detection signal of the encoder 53, the motor 45 is locked. As a result, the main sprocket 43 is locked and the traverser carriage 21 is positioned and fixed at a predetermined position.

In the above embodiment, the case where the positioning device of the present invention is applied to the traverser carriage 21 is shown, but not only this carriage but also the tracked carriage 20 shown in FIG. 3 and various other types. The present invention can be applied to other bogies and is particularly useful for positioning a bogie having a long traveling distance.

In the above embodiment, the motor 45 drives the main sprocket 43 to drive the traverse truck 21, but the wheels 33 shown in FIG. 4 may be driven by a motor. .. In that case, only the brake 52 is connected to the shaft 46 without connecting the motor 45.

Further, in the above embodiment, the two main sprockets 43 are fixed to the shaft 42, but the main sprockets 43 and the chain 51 may be one each.

Further, when the traverser truck 21 is lightweight, the wheels 33 may be omitted and the sprocket 43 itself may also serve as the wheels.

[0015]

[Effect of the device]

 As described above, according to the present invention, the chain, which is lower in cost than the rack, is laid on the floor surface, and the sprocket that engages with this chain is attached to the trolley. A positioning device that is easy to obtain can be obtained.

[Brief description of drawings]

FIG. 1 is a sectional view of a portion corresponding to FIG. 4, showing a positioning device for a trolley according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a main part of the positioning device of FIG.

FIG. 3 is a plan view showing an example of an article carrying device.

FIG. 4 is a sectional view taken along line IV-IV in FIG. 3, showing a conventional positioning device for a bogie.

[Explanation of symbols]

 21 Traverser Truck 13, 14, 15 Tracks 33 Wheels 43 Sprocket 51 Chain 52 Brake (braking means)

Claims (1)

[Scope of utility model registration request] 1. A trolley positioning device for positioning and stopping a trolley, which is movably installed along a traveling path, at a predetermined position, wherein a chain is laid along the traveling path, and A trolley positioning device characterized in that a meshing sprocket is rotatably mounted on a trolley, and a braking means is connected to the sprocket.