JPS5857335B2 - Conveyance device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a conveying device, particularly a conveying means equipped with a pair of front and rear trolleys guided by a free rail, and a device that engages with a dog provided on the front trolley to propel the trolley. The present invention relates to a conveyance device comprising a drive means (77) having a pusher and guided by a power rail.

The transport means equipped with a pair of front and rear trolleys as described above is
It is particularly suitable for transporting long objects; however, the larger the distance between the front and rear trolleys, the larger the radius of curvature of the rail at the U-turn, and the longer the length of the long object being transported, the larger the radius of curvature of the rail at the U-turn section. , the space occupied by the rotation of the long object at the U-turn section increases, and the efficiency of utilization of the floor surface or space above the floor surface in a factory or the like decreases.

In the present invention, the driving means is continuously moved in the same direction along the annular power rail, and the conveying means is not rotated at the U-turn portion, but is made to move forward and backward to make the turn. This is an attempt to eliminate such shortcomings.

An embodiment of the present invention will be described below based on the attached illustrative drawings. In FIG. 1, 1 is an endless power rail, 2 is an endless power rail,
is an endless free rail, which branches into first free rail parts 5, 6 and second free rail parts 7, 8 at U-turn parts 3, 4 at both ends.

As shown in FIGS. 2 and 3, the power rail 1 includes:
An endless chain 10 provided with pushers 9 at appropriate intervals is suspended and guided by a trolley 11, and the chain 10 is rotated in the direction shown by the arrow in FIG. 1 by a drive device provided at an appropriate location.

The free rail 2 is for guiding a pair of front and rear trolleys IJ-13 and 14 in the transportation means 12 for suspending and transporting the transported object, as shown in FIGS. is provided with a pair of front and rear dogs 15 and 16, and the front dog 15 is interlocked with a driven lever 17 which projects forward from the front trolley 13 and is vertically swingable.
An operating lever 18 is provided on the front trolley 13 and projects rearward.

The power rail 1 is arranged along the circulation guide path of the front trolley 13 formed by the outgoing path 19 and incoming path 20 of the free rail 2 as well as the first free rail section 5.6.

The pusher 9, which circulates along the power rail 1, pushes down the rear dog 16, which can only be rotated inward, and engages the front dog 15, which can be raised and lowered, at the upper limit position, and the front trolley 13 is propelled along a circular guide route along the power rail 1.

The 27th rail rail sections 7 and 8 are for guiding the rear trolley 14, and are provided with common rail sections 7a and 8a for forward and backward movement of the rear trolley in the middle, respectively, and have junction points with the first free rail sections 5 and 6, and Forward/forward common rail portions 7a, 8a
Route switching means 21 to 26 are provided at the branch points.

The route switching means 21 to 26 can be selected from those conventionally known, but for example, as shown in FIG. By moving the rails 27.2B, it is possible to utilize a route switching means that selectively uses both rails 27.2B.

1, 5a and 6a are parallel U-turn rail parts formed in the first free rail part 5.6, and correspond to the forward and backward common rail parts 7a and 8a of the second free rail parts 7 and 8. It is provided.

The power rail 1 is of course this parallel U-turn rail section 5 a
.

6a.

Next, to explain how to use and how it works, the outgoing path 19
The front trolley 1 of the conveying means 12 moves in the direction of the arrow 29.
3 passes through the route switching means 21 and is connected to the 17th Lee rail section 5.
19, the route switching means 21 switches to the outbound route 19.
and the second free rail section 7 are connected.

As a result, the rear trolley 13-14 moves to the 27th Lee rail section 7.
, and the conveying means 12 moves obliquely in the direction of the arrow 30.

When the front trolley 13 propelled by the pusher 9 enters the parallel U-turn rail section 5a, the rear trolley 1
4 also enters the forward/reverse common rail section 7a via the route switching means 22, and the conveying means 12 moves straight in the direction of the arrow 31 again.

When the front trolley 13 is propelled by the arcuate end of the parallel U-turn rail section 5a, the forward movement of the conveyance means 12 is stopped, and the front trolley 13 is propelled by the parallel U-turn rail section 5a.
When the transport means 12 moves in the opposite direction to the arrow 31, the conveying means 12 moves backward in the opposite direction to the arrow 31.

That is, the rear trolley 14 takes the lead, and the rear trolley 14 moves backward on the forward/reverse common rail section 7a.

If the route switching means 22 is switched here to cause the rear trolley 14 to enter the second free rail portion 7 connected to the return path 20, the conveyance means 12 is pushed back while moving obliquely in the direction of the arrow 32.

The rear trolley 14 passes through the route switching means 23 to the return route 20
When the first free rail section 5 is propelled by the pusher 9, the means 23 is switched to connect the return path 20 and the first free rail section 5. +1-13 also follows the rear trolley 14 and enters the return route 20, and the conveyance means 12 enters the return route 20.
0 in the direction of arrow 33.

The conveyance means 12 that has made a turn in the reverse direction without rotating the U-turn section 3 as described above reaches the U-turn section 4 at the other end, and the preceding rear trolley 14 passes through the route switching means 24 to the second freeway. After entering the rail section 8, the route switching means 24 connects the 17th lee rail section 6 to the inbound path 20, and the following front trolley 13 is connected to the 17th lee rail section 6.
into the parallel U-turn rail section 6a.

At this time, the rear Toro+ is already moving inside the second free rail section 8.
1-14 enters the forward/reverse common rail section a via the route switching means 25, so the means 25 is switched to change the forward/reverse common rail section 8a to the outgoing path 1 of the second free rail section 8.
Connect it to the side connected to 9.

As a result, the front trolley 13 moves parallel to the U-turn rail section 6.
As the rear trolley 14 is turned and propelled in the opposite direction, the rear trolley 14 is pulled in the opposite direction on the forward/reverse common rail section 8a, and the conveying means 12 moves backward in the direction of the arrow 34, and the rear trolley 14 moves along the path. The second
7 Lee rail section 8 is guided toward the outbound path 19,
The conveying means 12 moves obliquely in the direction of the arrow 35 as the front trolley 13 moves forward on the first free rail section 6 .

When the U-turn section 4 is turned in the reverse direction without rotating and the front trolley 13 enters the forward path 19 from the first free rail section 6 again, the route switching means 2
6 to connect the second free rail section 8 to the outgoing path 19, the rear trolley 14 enters the outgoing path 19 following the front trolley 13, and the conveying means 12 follows this outgoing path 19. It will move forward in the direction of arrow 29.

Note that at the end of the oblique route section in the U-turn section 4, that is, at a position immediately before the route switching means 26 of the first free rail section 6,
If a cam that can move forward and backward to push down the front dog 15 of the front trolley 13 is provided, this cam will automatically stop the front trolley 13 in the leading carrying-out means 12, as shown by the imaginary line in FIG. following conveyance means 12
Since the operating lever 18 of the stopped front trolley 13 pushes up the driven lever 17 of the front trolley 13 at , the front dog 15 of the following front trolley 13 is pulled down and removed from the pusher 9, so that the subsequent conveyance is Means 12 also automatically stops.

In this way, the single U-turn section 4 can also be used as a storage line for the conveyance means 12.

If the operation lever 18 protruding from the front trolley 13 is provided to protrude rearward from the rear trolley 14 as shown by the imaginary line in FIG. An automatic shut-down action can be performed.

Note that the front trolley 13 and the rear trolley 14 must be configured to be rotatable around a vertical axis 36, 37 with respect to the conveying means 12.

As described above in the embodiments, the conveying device according to the present invention has 1
The bushings of the driving means are guided by the power rails and circulated in the same direction, while the conveying means guided by the free rails is moved at both U-turn portions as in the conventional case.
Since it is possible to reverse the paper and make a turn without rotating the paper 80 degrees, that is, without reversing the front-back direction relative to the ground, it is possible to make a U-turn even when transporting a long object without using a large space. In addition, even when using a long transport means with a large distance between the front and rear trolleys, only a small amount of space is required for installing the rails at the U-turn section, which saves space on the floor or above the floor in factories, etc. Utilization efficiency can be greatly increased.

[Brief explanation of drawings]

Fig. 1 is a plan view showing the installation layout of the power rail and free rail, Fig. 2 is a side view showing the drive means and conveyance means, Fig. 3 is a longitudinal sectional front view of the same, and Fig. 4 is an example of the route switching means. FIG. 1...Power rail, 2...Free rail, 3゜4...U-turn section, 5,6...
・・First free rail section, 7, 8・・・Second free rail section, 9・・・Butsusha-110・・・・
...Endless chain, 11...Chain hanging trolley, 12...Transportation means, 13...
・Front trolley 14... Rear trolley 15
゜16...Dog, 19...Outbound route,
20... Return route, 21-26... Route switching means.

Claims (1)

[Scope of Claims] 1. A transport means having a pair of front and rear trolleys guided by a free rail, a pusher that engages with a tossage provided on the front trolley to propel the trolley, and has a power In a conveyance device comprising a drive means that moves while being guided by a rail, in a U-turn section between an outgoing path and an inbound path of the conveyance means, a first free rail section that allows only the front trolley to move in a U-y direction; , a second free rail part that allows only the rear trolley to make a U-turn is arranged so that the turn can be made without changing the direction of the front and rear of the transport means, and the rear trolley precedes the front trolley on the return trip. A transport device designed to 2. The device according to item 1, wherein the 27th free rail section is provided with a common rail section for forward and backward movement of the rear Toro IJ-, and the second free rail section is configured in a substantially Y shape. .