JPH0110294Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention is a conveying device, more specifically, a carrier having a lifter, etc. is circulated on a guide rail arranged in a planar polygonal shape to convey an object. The present invention relates to a conveying device made by:

*Background Art Conventionally, there is a conveying device shown in FIG. 4, which circulates and transfers this type of carrier on a guide rail. That is, in the case shown in the same figure, a carrier 6' is placed on a guide rail 1' which is arranged in a rectangular shape in plan and has a corner part 4' and a straight part 5'. A pusher 44 configured to move a pushing body 43 in parallel along the guide rail 1' on the outside of the portion 5' pushes a receiving portion 45 formed on the outer surface of the carrier 6'. At the very least, the carrier 6' is circulated on the guide rail 1' while changing its direction at each corner 4'.

However, since this conventional device is constructed as described above, the following problems have arisen.

(a) When transferring the carrier 6', the pusher 44 pushes the receiving part 45 formed on the outer surface of the carrier 6', that is, only one side of the carrier 6'. The carrier 6'
A rotational moment in the direction of arrow A was generated, causing the carrier 6' to tilt inward, making it extremely difficult to move the carrier 6' smoothly in a straight line. As a result, a fatal problem has arisen in this type of conveyance device, in which it is difficult to smoothly convey the conveyed object by the transfer of the carrier 6'.

(b) Furthermore, in this conventional device, the pusher 44 for pushing the carrier 6' is constructed so that the pushing body 43 moves parallel to the outside of the guide rail 1'; The pusher 44 had to be configured to have a dimensional distance longer than that of the straight portion 5' of the corresponding guide rail 1', and as a result, the structure of the pusher 44 became very large and the manufacturing and installation work of the device was extremely complicated. .

*Problem to be solved/Technical purpose This invention aims to solve the above-mentioned conventional problems, and allows the carrier to smoothly transport objects on guide rails without tilting like in the past. It is an object of the present invention to provide a completely new and practical conveying device that can smoothly carry out the above operations and has a structure of a means for conveying the carrier that is more compact than conventional ones.

*Disclosure of the invention/technical means The present invention was constructed to achieve the above-mentioned purpose, and its construction can be summarized as follows: an engaging portion 12 is formed approximately in the center of the carrier 6; The engaging part 12 formed in 6 and the engaging part 3 which can be freely engaged and detached
4 is provided so as to be able to reciprocate along the guide rail 1, and the engaging portion 34 of the trolley 25
The carrier 6 is configured to be transported by engaging the engaging portion 12 of the carrier 6 and causing the truck 25 to travel.

*Effects Since the present invention is configured as described above, it has the following effects.

(a) Since the structure is such that the carrier is transferred by engaging the engaging part formed at the center of the carrier in the traveling direction with the engaging part of the trolley and causing the trolley to travel, The carrier can be transferred by applying a tensile force, and as a result, there is no rotational moment generated in the carrier and the carrier is tilted diagonally as in the prior art, and the carrier can be smoothly transferred in a straight line. Therefore, there is a special effect that the conveyance of the conveyed object can be carried out smoothly by the conveyance of the carrier.

(b) In addition, the present invention has a structure in which the carrier is transferred by the running of the trolley, and compared to the conventional pusher which was constructed on the side of the guide rail with a distance longer than the linear part of the guide rail. As a result, the structure has become very compact, and the manufacturing and installation of the device has become very simple.

*Example The embodiment of the present invention will be described below according to an example shown in the drawings.

In Figure 1, 1 has two rows of rail bodies 3 with continuous grooves 2 in the center arranged in parallel, and four right-angled corner parts 4 and four straight parts 5 each to form a rectangular plane. A guide rail for a carrier arranged in a shape is shown. Reference numeral 6 indicates a carrier consisting of a set of four caster blocks 8 each having four casters 7 attached to the lower part thereof, and a rod 9 is attached to the lower part of each caster block 8 of the carrier 6 so as to hang down from each other. Furthermore, each rod 9 is connected by a connecting rod 10. Reference numeral 11 denotes a lifter configured to freely raise and lower objects to be transported, and is attached to the lower part of the connecting rod 10. As described above, the lifter 11
The carrier 6 is placed on the guide rail 1 by inserting the rods 9 into the grooves 2 of the guide rail 1. Reference numeral 12 indicates an engaging portion formed at the center of the connecting rod 10. The structure of the engaging portion 12 will be explained with reference to FIG. 2. 13, 13'
1 shows an engaging piece formed with a protruding piece 13 on the inside of the front part, a stopper 15 on the inside of the center part, and a protruding piece 17 having an arcuate contact surface 16 on the rear part. There is a receiving surface 1 that protrudes outward on the outside of the part.
It forms 8. Further, both engaging pieces 13, 13' are pivoted to the connecting rod 10 by pins 19, 19, respectively. Reference numeral 42 indicates a spring, and both ends of the spring are fixed to the inside of each of the engaging pieces 13, 13'. The above-mentioned structure constitutes the engaging portion 12. Next, 20 indicates a carrier transfer device for transferring the carrier 6, the details of which will be explained with reference to FIG. 3, and 21 indicates two channels 2.
2 and 22 are arranged side by side facing each other. It is provided along the center of the straight section 5 of the rail 1. Reference numeral 23 indicates a guide body attached to the lower part of the seat plate 24 fixed to the upper surface of the guide rail 21 for the bogie, and a narrow guide groove 24 in the vertical direction is formed approximately in the center of the guide body 23. .

Reference numeral 25 indicates a cart placed on the guide rail 21 for the cart, and 26 indicates the main body of the cart.
Shafts 27 are fixed to both sides of the truck body 26, respectively.
Wheels 29 are attached to the wheels 29 via bearings 25. Reference numeral 30 denotes a rigid steel belt in the form of a flat thin plate.The lower part of the steel belt 30 is fixed to the truck body 26 with bolts and nuts 31, and the upper part is connected to the guide groove 24 of the guide body 23.
is inserted into. 32 indicates a chain connected to the rear part of the truck body 26, and the chain 3
2 is suspended from the steel belt 30 by a metal fitting 33 having a substantially fishhook shape. Reference numeral 34 indicates an engaging portion formed to protrude toward the lower part of the front part of the truck body 26, and the engaging portion 34 is connected to the connecting rod 1 of the carrier 6.
It is formed into a substantially arrowhead shape in plan view so as to be able to engage with the engaging portion 12 formed at 0. Next, 35 is the truck 2
Carrier guide rail 1 for transferring 5
The belt transfer device provided on the outer side of the corner portion 4 of 3 is shown, and the structure of the device 35 will be explained.
Reference numeral 6 indicates a pinch roller which is arranged in parallel with a rubber roller 37 and pinches the steel belt 30 connected to the cart 25. 38 is the pinch roller 36
The sprocket wheel 38 and the pinch roller 36 are connected to the electric motor 4 via a speed reducer 39.
It is fixed to the rotating shaft 41 of 0.

In the embodiment having the above configuration, the carrier transport method and operation will be explained. In FIG. 1, the carrier 6 is located at the corner portion 4a, and the cart 25 is located below the corner portion 4b. In this case, the belt transfer device 35 is operated to rotate the pinch roller 36 in the direction of arrow A, and the truck 25 is moved in the direction where the carrier 6 is located. At this time, the cart 25 is moved only by the belt transfer of the steel belt 30, but the steel belt 30 has rigidity, and the belt 30 is inserted into the guide groove 24 of the guide body 23. Because it is guided in a straight line, it runs smoothly in a straight line. Next, when the truck 25 is made to travel, the engaging portion 34 of the truck 25 comes into contact with the engaging portion 12 on the carrier 6 side, and the truck 25 is further moved to the carrier 6 side.
When the carriage 25 is moved to the side, the engaging portion 24 of the carriage 25 pushes the engaging pieces 13, 13' of the engaging portion 12 on the carrier 6 side open against the closing force of the spring 42, as shown by the two-dot chain line in FIG. Both engaging portions 34 and 12 are engaged. Thereafter, the pinch roller 36 of the belt transfer device 35 is reversed in the B direction to cause the truck 25 to travel toward the corner portion 4b, thereby transferring the carrier 6. In addition, since the tensile force by the trolley 25 acts on the approximate center of the carrier 6,
The carrier 6 does not appear to be inclined at all, and is smoothly transported in a straight line. When the carrier 6 reaches the corner part 4b, it presses the receiving surface 18 formed on the engagement piece 13 of the engagement part 12, and the engagement piece 1
3 and 13' are opened to release the engagement between the carriage 25 and the carrier 6, and then the carrier 6 is transferred over the next straight section 5b by a separately provided transfer means.

In the above embodiment, in addition to the steel belt 30, a chain 32 is connected to the trolley 26, and the sprocket wheel 38 that engages the chain 32 is attached coaxially with the pinch roller 36. When the carrier 6 is picked up and transferred, the transfer can be carried out by tensioning the chain 32 without putting any burden on the steel belt 30, and there is an advantage that the durable life of the steel belt 30 is extremely long. . however,
As mentioned above, the chain is not an essential requirement in the present invention.

Further, as for the belt connected to the cart, a steel belt is used in the above embodiment, but the present invention is by no means limited to this, and the point is that the belt has the rigidity necessary to push the cart. It does not matter what material or shape it is made from, as long as it has.

Further, the structure of the engaging portions formed on the carrier and the truck is not limited to the above embodiments, but the point is that the engaging portions formed on both may be configured to be freely engageable and detachable. The engaging part formed on the carrier side does not need to be provided directly on the main body of the carrier, but may be provided on a separate member connected to the carrier as in the embodiment, and in short, the engaging part formed on the carrier side does not need to be provided directly on the main body of the carrier. It suffices if it is provided approximately in the center.

Furthermore, in the present invention, there is no need to separately provide a guide rail for the carriage to run the carriage as in the embodiment, and the carriage can be run on the carrier guide rail. The specific configuration of the other parts constituting the present invention is by no means limited to the embodiments, and the design can be changed within the intended scope of the present invention. Further, the location where the truck is made to run may be any position along at least one straight portion of the carrier guide rail, and the number of the truck is not critical at all.

[Brief explanation of the drawing]

FIG. 1 shows a conveying device according to the present invention, in which A is a plan view of a main part and B is a cross-sectional view taken along the line C-C of A. FIG. 2 is an enlarged plan view of the main part showing the engaging part of the carrier, and FIG. 3 shows a truck and a device for transporting the truck.
A is an enlarged cross-sectional view taken along the line D-D in FIG. 1A, and B is a schematic cross-sectional view. FIG. 4 is a schematic plan view showing a conveying device using a conventional conveying means. 1...Carrier guide rail, 4...Corner section, 5...Straight section, 6...Carrier, 12...
Engaging portion, 23...Guide body, 25...Dolly, 30
...Steel belt, 34...Engagement part.

Claims (1)

[Scope of utility model registration request] In a conveying device in which a carrier 6 is placed on a carrier guide rail 1 in which a plurality of corner portions 4 and straight portions 5 are formed and arranged in a planar polygonal shape, a substantially central portion of the carrier 6 is provided. Engagement part 1
2, and further has an engaging part 34 on one end side that can be freely engaged with and detached from the engaging part 12 formed on the carrier 6,
In addition, a cart 25 having a rigid belt 30 connected to the other end thereof is provided so as to be movable along at least one straight portion 5 of the guide rail 1, and a belt 30 connected to the cart 25 is provided. A guide body 23 that guides the guide rail 1 in a straight line is separately provided along the straight portion 5 of the guide rail 1, and the carriage 25 is made to be able to reciprocate by moving the belt 30 connected to the carriage 25. A conveying device characterized by the following.