JPH0318463Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a device for transferring and raising/lowering a tow pin-equipped truck between different floors.

Prior art and its problems Conventionally, a tow pin-equipped trolley for transporting goods used on each floor of a multi-story building is transferred to a circulating or reciprocating tray conveyor and lifted up and down to different floors. However, there was a problem in that each floor needed a device to transfer the trolley to and from the tray conveyor.

Means for Solving the Problems The present invention is a device for transferring and raising/lowering a tow pin-equipped cart between different floors, and includes a lifting platform that is raised and lowered by lifting means. ,
A chain feeder is provided with a dog that engages with a tow pin of the truck, and the chain feeder is movable between a transfer position and a lifting position of the truck by a horizontal drive means. The above problems have been solved.

Function In the present invention, when loading and unloading the tow pin-equipped truck onto the lifting platform and when unloading it from the lifting platform, the chain feeder is moved to the required position by the horizontal drive means and the loading and unloading of the truck is carried out. There is no need to provide a trolley transfer device on each floor as in the past.

Embodiments Hereinafter, embodiments of the present invention will be described based on the drawings.

FIG. 1 is an overall front view showing the outline of the present invention. First, a tow pin-equipped truck 1 shown by an imaginary line is moving in the direction of arrow B on the rails 2, 2' (not shown) on the first floor A. It advances and reaches the transfer position C with the lifting platform 3. Next, the door 12 is opened by the motor 11, and the linear actuator 4, which is a horizontal drive means, is opened.
As a result, the chain feeder 5 provided on the lifting platform moves to the transfer position C shown by the imaginary line, and the positional relationship with the tip of the tow pin truck 1 becomes as shown in the figure.
A tow pin 6 provided at the tip of a tow pin-equipped truck 1 is moored between a pair of dogs provided on a chain feeder 5. When the drive motor 7 of the chain feeder 5 starts rotating, the tow pin truck 1 is loaded onto the lifting platform 3 by the chain feeder 5.
By operating the linear actuator 4 in the right direction in the figure, the carriage 1 is completely received on the lifting platform 3, and the transfer is completed (this point will be explained in detail later).

After the transfer is completed, the door motor 11 rotates and the door 12 is closed. Next, the lifting motor 13, which is the lifting means, operates, and the lifting platform 3 connected to the chain 14 via the sprocket moves to the columns 15, 15'.
You will be guided up to the 2nd floor F by the rails installed in the building.

After the lifting platform 3 stops rising to the second floor F as shown by the imaginary line, the door motor 11' operates and the door 12' opens, and the linear actuator 4 operates to open the chain door. Ida 6 moves forward,
It stops at transfer position C' together with the tow pin truck.
Next, the chain feeder 5 rotates in the reverse direction, and the tow pin-equipped truck 1 moored to the dog of the chain feeder 5 moves forward, completing the transfer to the second floor F. In addition, numerals 8 and 8' are wheels of the tow pin-equipped cart 1, numerals 9 and 9' (not shown) are handrails provided on both sides of the elevating platform 3, and numerals 10 and 10' are the wheels of the elevating platform 3. Indicates the stopper at the descending end.

When transporting the tow pin-equipped cart 1 from the second floor F to the first floor A, the above operations are performed in the reverse order,
The carriage 1 with tow pins is transported between multiple floors by repeating the above cycle.

The outline of the device has been explained above, and Figures 2 and 3
A more detailed explanation will be added with reference to FIGS.

As shown in FIG. 3, the lifting platform 3 has a frame 16 that is vertically elongated in the traveling direction of the tow pin-equipped truck 1.
As shown in FIG. 4, reinforcing angle members 17, 17' that support the load of the truck 1 are welded to the frame 16, and guide grooves 18, 18' in which the wheels 8, 8' of the truck 1 roll are provided. frame 16
Handrails 9, 9' are attached to both sides. Guide rails 19, 19' are disposed in the longitudinal direction on the angle member 17' at the bottom of the frame 16, and a base plate 21 with rollers that can move forward and backward is connected to the connecting member 23.
Connect to linear actuator 4 with frame 1.
The guide rail 19 is driven by the linear actuator 4 fixed to the support member 22 at the
It runs freely on 19' via rollers 24, 24'.

A drive motor 7 is provided on the substrate 21, and a chain feeder 5 is provided on a chain support member 25 fixed to the substrate 21.

The operation of the lifting platform 3 will be described below. First, the cart 1 with the tow pin 6 pushed down arrives at the transfer position C. Limit switch 29 is trolley 1
Detects the arrival (and completion of sending). The backward limit switch 26 of the linear actuator 4 is activated, which causes the door opening limit switch 27 to be activated.
operates and the door 12 opens. Next, when the linear actuator 4 moves forward to the forward limit switch 28 position and the chain feeder 5 reaches the transfer position C of the tow pin-equipped truck 1, the linear actuator 4 stops. The tow pin 6 is attached to the pair of dogs 31 of the chain 30, as shown by the imaginary line in FIG.
31'. The tow pin 6, which is moored between the dogs 31 and 31', is pushed by the dog 31 in the direction of arrow B until the chain feeder 5 is rotated by the rotation of the drive motor 7 and the tow pin 6 is at a fixed position. Then, the linear actuator 4 operates and the trolley arrival limit switch 33 is activated.
back up to the lifting position where it operates. As a result, when the reverse limit switch 26 is activated, the door 1
The door close limit switch 27' of No. 2 is activated and the door 12 is closed. Note that the reference numeral 20 indicates a limit switch for preventing the tow pin-equipped truck 1 from running away.

The dog 31 is for pushing the tow pin 6 to the right (that is, loading), and the dog 31' is for pushing the tow pin 6 to the left (that is, feeding). Since the dog 31 is rotatable clockwise and the dog 31' is rotatable counterclockwise, the tow pin 6 is moored between the dogs 31 and 31' no matter which direction it comes from.

Furthermore, although the chain feeder and linear actuator 4 have been described as being operated sequentially, they may be operated simultaneously, thereby reducing the transfer time.

By the way, the chain feeder 5 has a chain support member 2 fixed to a substrate 21 as shown in FIG.
The endless transmission chain 30 attached to the sprocket 5 is wound between sprockets 34 and 34', and the tension of the chain 30 on the sprocket 34' can be adjusted by a take-up device 35. The sprocket 34 rotates in conjunction with the drive motor 7. There are supporting members 3 on the left and right sides of the lifting platform 3.
A guide roller 38 and a side roller 39 are fixedly attached to supporting members 37 and 37'.
The lifting platform 3 is connected to a chain 14, and balance weights 36, 36' are attached to the other end of the chain 14.

FIG. 4 is a side view of the lifting platform 3, in which a support member 37 welded to the frame 16 is connected to the chain 14. A balance weight 36 is attached to the other end of the chain 14, and serves to maintain balance with the lifting platform 3 when going up and down. Note that when the tow pin-equipped trolley 1 comes to the lifting position, the lifting motor 1
3 starts, and the lifting platform 3 is pulled by the chain 14.
The elevator platform 3 stops at a predetermined position on the second floor F where the lift limit switch 41 starts to rise and the upper limit switch 41 is activated.

Reference numerals 42 and 43 indicate limit switches for preventing the lifting platform 3 from running away, and reference numeral 44 indicates a limit switch for preventing the chain 14 from being hoisted too much.

When the tow pin-equipped cart 1 is lowered from the second floor F, the lifting platform 3 is operated in the reverse order as described above, and when the lifting platform 3 is lowered and the lower limit switch 45 is activated, it is stopped.

In addition, in FIG. 2, the tow pin 6 is shown in the up state and the down state, but it is of course in the down state while the device of the present invention is in operation.

Effects of the invention (1) By attaching a chain feeder to the lifting platform that transfers the trolley and providing means for driving the chain feeder in the horizontal direction, there is no longer a need for a transfer means that conventionally required installation on each floor. Therefore, costs can be reduced.

(2) Transferring and unloading of carts with tow pins can be carried out directly with the chain feeder, which simplifies the operation, and since the chain feeder can be configured compactly, space is reduced, and the miniaturization of the carts with tow pins simplifies the operation. Transfer cycle time is shortened.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and Fig. 1 shows an overall front view when a tow pin-equipped cart is transported between the first and second floors, and Fig. 2 shows a lifting platform on which the tow pin-equipped cart has been transferred. Figure 3 is its front view, Figure 4 is its plan view, Figure 4 is
The figures each show a side view thereof. 1...Dolly with tow pin, 3... Lifting platform, 4...
Horizontal drive means, 5... Chain feeder, 6...
Tow pin, 3... Lifting means, 31, 31'... Dog.

Claims (1)

[Scope of utility model registration claim] Transferring and transporting a tow-pin truck between different floors
The device is for lifting and lowering, and has a lifting platform that is lifted and lowered by lifting means, and the lifting table has a chain feeder that is provided with a dog that engages with a tow pin of the truck, and the chain feeder A device for transferring and lifting a cart with a tow pin, characterized in that the cart can be moved between a transfer position and an elevating position by means of a horizontal drive means.