JPS59186760A - Mobile truck - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a moving trolley used for a 1m logistics facility, particularly at a corner of intersecting transport lines, without changing the direction of the conveyed objects loaded on the trolley. The present invention relates to a mobile cart having functions such as being able to move objects in a predetermined transport direction.

Conventionally, when changing the direction of a mobile cart at a corner of a prisoner transport line, a turntable (α) installed at a corner of the transport line and a rail (b) are used to change the direction of a mobile cart at a corner of a transport line, as shown in Figure 1.
(b) is installed, and a moving jrlJ trolley (d) carrying luggage (c) is installed.
) is transferred onto the rail (b) (b), the turntable (α) is turned in a predetermined direction (arrow e), and the cargo (1) is changed direction along with the moving cart (d). Ta. In the figure, (force is the truck body, (q') is the running wheel, (n) is the guide roller, (i) is the drive tube,
(,7) is the first driving wheel attached to the bogie body C/'), (
k) Indicates the center of rotation of the beam table (a).

However, if you do not want the direction of the car body being assembled to change even if a moving trolley changes direction, such as on a conveyance line in an automobile assembly factory, a separate direction change device must be installed, which results in unnecessary expense. There is a drawback that the layout cannot be rationalized/ζ.

The present invention has been made in order to eliminate the above-mentioned drawbacks, and includes horizontally and rotatably supporting a plywood board on which a urine feed is mounted on the upper part of a rotating part of a trolley that changes direction in a predetermined sheet feeding direction. This relates to a movable trolley that is made by a locking device so that the base plate can be unrotatably locked to the ground side and to the revolving part of the bogie. By rotating the trolley rotating part in the conveying direction with the plywood fixed on the ground side, the direction of the moving trolley can be changed without changing the direction of the conveyed object on the plywood. This has the advantage that there is no need to provide one, and the layout of the conveyor stem can be rationalized.

Embodiments of the present invention will be described below with reference to the drawings. Figures 2 to 4 show the first embodiment of the present invention, and in the figures, reference numerals (1) and (1) indicate a direction toward the corner of the conveyor line (2α) and (2b) bent at right angles. (3) is a drive tube provided along each conveyance line, (4) is a cylinder that rotates the turntable (5) around the rotation center l; ) on the fixed rail (11(1)), the transfer rail (1α) (1α), the same drive tube (6α), and the drive tube drive motor (power is provided). .

The mobile trolley is rotatably supported horizontally by a trolley body (9) supported by four running wheels (8), a pivot shaft (00) provided at the center m of the trolley body (9), and a cargo ( It consists of an upper plate (13+', etc.) on which the truck 121 is mounted, and furthermore, on the lower surface of the truck body (9), there are guide rollers (14) (14) for making the truck body (9) run along the rail (IHIα), Drive tube (3) (3cL
) is rotationally driven to generate a thrust in the transport direction, and a part of a series of locking devices described later is provided on the main body (9) and the upper plate row.

The lock device includes a support frame (17) erected on the side of the rotation center l of the turntable (5), and a support frame a7.
) and the lock pin guide α→, the upper plate lock pin (20) supported in the guide fl'l and moved vertically by the cylinder θ8), and the undercarriage body (9) ) is attached almost vertically to the spring C! ! 4 upward (arrow p), and downward (arrow q) by the link lever lever (2) and the lock release bar (2 (a) and cylinder 08 via pin (c)).
The top plate (I3) has four lock pins (26) that are fitted into the top plate (I3) to fix the top plate 03) to the main body (9). Lock pin holes (27a, ) (27b) (27c) (2
7d) and upper plate lock pin 4, and then remove the upper plate (13).
) to the ground, the four upper plate lock pin holes (28a) (28b) (28c) (28d) are arranged at equal intervals on each concentric circle (circumference angle is 90 degrees) as shown in the figure. It is drilled in.

Next, the operation of this device will be explained. When the movable trolley travels on the fixed rail (1) (]), the spring (22) pushes the lock pin (2Lil) upward and fits into the lock pin hole (27a), as shown in Figure 2. The plate 03) is locked to the truck body (9). Now, if the moving cart moves in the r direction and enters a part of the corner, how to turn 90 degrees without changing the direction of the cargo (121 (absolute direction with respect to the ground)) ,
First, the movable cart is stopped at a predetermined position on the turntable (5), that is, at a position where the center m of the main body of the cart coincides with the turning center t of the turntable (4), and then the cylinder θ is operated to lock the upper plate. Push pin (20) upwards (arrow S)
Insert it into the drive shaft top plate lock pin hole (28c). The upper plate (1:;) is now fixed to the ground. At this time, the lock pin (26) is driven downward (arrow q) through the link lever (231, lock release bar c2a) against the force of the spring (2'j,), and the upper plate (13)
The lock between the and the truck body (9) is released. Now turn the turntable (5) to the right (arrow U) and the upper plate (
131 is locked, so only the truck body (9) turns to the right together with the turntable (5). When you start turning, the 1-1 lock release bar (2) comes off from the link lever lever 3, and the top of the lock bin (2) is pressed against the upper plate (i3 + lower surface) by the compressed spring (2 seconds force). When the main body (9) turns 90 degrees, it fits into another lock pin hole (27d) and the turning operation is completed.
At the same time, the '7 plate (11+) is fixed to the truck body (9).

Now operate the cylinder 08) and drive the upper plate lock pin (liJl downward (arrow t) once to release the lock, and lock the drive tube (3) (5a) to start the new conveyance. Start the mobile cart in the direction (arrow υ).

If you want to orient the cargo (12) in a predetermined direction, for example, in the direction opposite to the new conveyance direction υ, after completing the rotation of the turntable (5), manually press the lock pin 06.
) and turn the top plate 03) 90 degrees to the left around the rotation axis 00), then use the lock pin (26) to tighten the top plate (
13) to the trolley body (9).

In fact, if you want to change the direction of the cargo (12) together with the moving cart, you do not need to operate the upper plate lock pin (20).

A second embodiment of the invention is shown in FIGS. 5-7. In this example, when the moving cart changes direction,
This is the same as the first embodiment in that the direction remains the same as before entering a part of the corner (absolute direction toward the ground), but
Since the turntable changes the direction of the movable cart without supporting stacked loads, there is an advantage that the turntable can be made lightweight and inexpensive. Structural parts different from the first embodiment will be explained below. In the drawings, parts having the same functions as those in the first embodiment are designated by the same reference numerals unless otherwise specified.

The mobile trolley has cargo (12) loaded on its second part, and has four free wheels (8a) on its lower surface, that is, wheels that are supported so as to be able to turn freely at an appropriate eccentricity (eccentricity x) with respect to the rail contact point W. The plywood (29) is attached so that it can rotate freely via the pivot shaft (10a) provided at the center 11 of the plywood (29), and there is a drive wheel (L5) for generating thrust at the bottom, and an auxiliary unit with two guide rollers. Rotating frame (321 etc.), rotating frame (32), etc.
A series of locking devices similar to those in the first embodiment, namely lock pins (2(1)
(2fil, spring 1.!21, link lever 0
3+, lock pin hole (27α) ~ (27d), (28
α) to (28d), cylinders, etc. are provided.

On the turntable (5) is a drive tube (3).
1,), drive tube drive motor (7), guide rail for auxiliary wheel transfer (63α), and rail play)
(34a) is provided, and the auxiliary wheel (30) side is supported on a rail plate (64α).

On the ground side, there are rails (1α) (1b) that bend at right angles without any breaks at some of the corners and guide rails (3) that guide the mobile cart in the traveling direction via guide rollers (14cL).
3) (33) will be installed. While traveling on the ground, the auxiliary wheels (3u) (30) are placed on the guide rail t3. Rail plate t34+ that does not contact j+ and rises gently upwards from above the guide rail (33) when approaching a part of the corner
Guide rail for transferring the auxiliary wheel by moving above (63α)
Upper rail play) Move onto (34a).

Next, the operation of this device will be explained. Conveyance line (2α
), the load u2+ and the plywood (29) are supported by four swivels 11@(8α).

When the mobile trolley enters a part of the corner from the direction of arrow r, one of the two free wheels (8a) in the direction of travel is on the rail (1α).
However, the moving trolley is moved onto the auxiliary wheels (30) (301 is the rail play) (34a), and the moving trolley is mounted on the two auxiliary wheels (30) (30) and the two wheels on the opposite side of the traveling direction. It advances while being supported by the free wheels (8(L)) and stops at a predetermined position.At this position, the bogie body (29) is again supported by the four free wheels (8α) on the rails (1α) (1b) and the soil. (See Figure 7).

If you activate the upper plate lock pin (29) with this, the plywood (29
) is fixed on the ground side, and the lock pin (26) is fixed on the base plate C!
! leave from l). Next, when the rotating frame (32) is turned to the right by 90 degrees (arrow 2), the plywood (29) is moved/stopped, and only the rotating frame (32) is rotated to move in the predetermined transport direction (arrow τ). Direction, lock pin (26) at the same time
is low in the lock pin hole (27d), and the rotating frame (3
2) and the plywood (29) are combined. Cylinder (I)
8), put the plywood (2r++) in a free state with respect to the ground-L side, and start the drive tube (3, z) (3).When exiting a part of the corner, set the base plate i2") l is 2
auxiliary wheels (30) and two free wheels (8c) in the direction of travel.
L) is supported.

In addition, when the mobile trolley starts from a part of the corner, each free wheel (8
The transfer direction of a, ) is facing the conveyance direction (arrow r) before entering a part of the corner, but since the contact point W with the rail (1a) (1b) is eccentric to the rotation axis 0, the moving trolley When the robot starts moving, it automatically changes direction to the new transport direction (arrow 9).

As mentioned above, when changing direction, the plywood (29) is fixed on the ground side and only the rotating frame (34) rotates, so the cargo (
12) can change direction without changing the direction of the rail (12), and while the three rotating frames (3) are rotating, the cargo (121 and plywood (29)) can be moved around the rail (1
LL) (1b), the support load of the turntable (5) is small, and the turntable (5) can be manufactured lightweight and inexpensively.

In the above explanation, the moving trolley is a drive tube (3
) (3a) and rotated by a separately placed turntable (5), the mobile trolley may be self-propelled, and it can be rotated using an automatically operated rotating device. You may also do so. Although the case has been described in which the vertical conveyance lines (2a) and (2b) intersect at right angles at some corners, the direction can also be changed at other angles.

It should be noted that the present invention is not limited only to the above-described embodiments, and it goes without saying that various changes can be made without departing from the gist of the present invention.

The mobile cart of the present invention exhibits excellent zero-order effects having the above-described configuration.

(1) The plywood on which the transported object is mounted is rotatably supported on the bogie revolving section that changes direction at a part of the corner of the intersecting running rails, and a locking device is installed to lock the plywood to the ground side. The direction of the moving cart can be changed without changing the direction of the transported object.

(11) By configuring the fixed rail to support the weight of the conveyed object through the flexible wheels of the eccentric support structure attached to the plywood during the direction change of the moving trolley, the turntable that rotates the trolley rotating section can be used. The support load is small, and the turntable can be manufactured lightweight and inexpensively.

(iii) As a result of item (1), there is no need to provide a separate direction change device as in the past, the layout of the conveyance system can be rationalized, and unnecessary equipment costs can be reduced.

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram showing the turning procedure of a conventional mobile cart;
Figure 4 shows the first embodiment of the present invention, Figure 2 is a front view of the movable trolley, and Figure 6 is the lll-
An arrow view from the l11 direction, Figure 4 is 1V in Figure 6.
5 to 7 show the second embodiment of the present invention, FIG. 5 is a front view of the mobile cart, and FIG. 6 is a Vl-V1 in FIG. 5. Figure 7 is a view from the -■ direction in Figure 6. In the figure, (1), (1α), and (1b) are rails, (5) is a turntable, (8) is a running wheel, (8α) is a free wheel, (9
) is the truck body, (10) (10LL) is the rotation axis, (1;
31 is the upper plate, ■ (14LL) is the guide roller, (2υ)
is the upper plate lock pin, (,71L+l is the lock pin, (2
7α) to (27d) are lock pin holes, (28α) to (2
8d) is the upper plate lock bin hole, (29) is plywood, (30)
(331 indicates the guide rail. Patent applicant Ishikawajima Harima Heavy Industries Co., Ltd. @ Figure 4 Figure 5 Figure 6

Claims (1)

[Claims] 1) In a mobile trolley that runs on rails, it is supported via wheels on turning rails provided at some of the intersecting rail corners, and is driven to turn in a predetermined transport direction via a guide device that sandwiches the turning rails. It includes a truck rotating section, and a bed plate for mounting a conveyed object horizontally and rotatably supported on the upper part of the truck rotating section, and further locking the plywood to the ground side and the truck rotating section so as not to rotate. A mobile cart characterized by being equipped with a locking device.