JPH0485164A - Floor conveyor - Google Patents

Abstract

PURPOSE:To make it possible for a conveyed work to be lined off in an optional spot in a conveyor line by connecting plural units of trolleys with one another, while installing a transferring supported part in a conveyed work supporting frame, and constituting this conveyed work supporting frame to be separate from the trolley. CONSTITUTION:Two trolleys 3, 4 being shiftably supported on a guide rail 2 are connected to each other through a connecting means 7, and also trolleys 5, 6 through a connecting means 9, respectively, and each of lifting members 20, 21 is installed in these trolleys 4, 5 supporting a conveyed work supporting frame 10. A vertical cylindrical part 33 forming fitting parts 32a, 32b is installed downward in this conveyed work supporting frame 10, and fitted in a vertical pin 24 of fitted parts 23a, 23b at upper ends of the trolleys 4, 5 free of detachment in the vertical direction. In addition, a conveyed work supporting attachment 36 is installed projectingly in the conveyed work supporting frame 10, and also there is provided a transferring supported part 38. Then, a fork 52 is advanced into a lower side of the transferring supported part 38, and the conveyed work supporting frame 10 is separated from a dolly 1.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention comprises a guide rail disposed along a conveyance line and a dolly for supporting a conveyed object that runs guided by the guide rail. This dolly relates to a floor conveyor that is constructed of a plurality of trolleys in the front and back directions supported by the guide rails, and a frame for supporting objects to be transported supported by two trolleys adjacent in the front and back.

(Prior art and its problems) This type of floor conveyor using a dolly is used as a means of supporting and conveying objects in work lines that perform painting work on objects such as automobile bodies. Or, it becomes necessary to take the conveyed object off the line for repair work, etc. due to a mistake in the painting work or the like on the work line.

In such a case, in order to eliminate the inconvenience of lifting only the transported object supported by the dolly with a hoist crane or the like and transferring it to another carrier, the transported object can be lifted by the dolly and the said dolly. - A dolly line-off type floor conveyor that can be carried off the line integrally with the guide rail supporting the
It was proposed in Publication No. 5.

However, this conventional floor conveyor using the dolly line-off method requires a movable guide rail to move the dolly off the line, so the dolly is moved to a branch repair line equipped with the movable guide rail. Therefore, it is not possible to move the conveyed object off the line at any point on the conveyance line. In other words, a dedicated glue pair line equipped with the movable guide rail, that is, a large space is definitely required, and in addition, the movable guide rail and the dolly must be integrated in order to move the transported object that has been moved off the line. This not only requires a large carrier for moving the objects that have come off the line, but also requires a great deal of labor to move them.

(Means for Solving the Problems) In order to solve the conventional problems as described above, the present invention has the following features:
A plurality of trolleys constituting the dolly are connected to each other by a connecting means different from the frame for supporting the transported object, and each of the two trolleys supporting the frame for supporting the transported object is provided with a fitted portion, The frame for supporting the transported object is provided with two fitting parts, front and rear, from which the top plate can be detached in the vertical direction with respect to the two fitting parts, and a supported part for transfer by a fork of a forklift or the like. hand,
The present invention proposes a floor conveyor in which the frame for supporting objects to be transported is configured to be separable from the two trolleys.

(Example) An example of the present invention will be described below based on the attached illustrative drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a dolly for supporting a transported object, and 4 is movably supported by a guide rail 2.
It is composed of two trolleys 3 to 6, connecting means 7 to 9 for connecting these trolleys 3 to 6 to each other, and a frame 10 for supporting the transported object supported by the first nitrolley 4 and the third trolley 5. There is.

Each of the trolleys 3 to 6 is equipped with a horizontal axis wheel 11 for support and a vertical axis roller 12 for steady rest, and a main dog 13 is provided at the lower part of the first trolley 3, A secondary dog 14.15 is provided at the bottom. The connecting means 7 for connecting the first trolley 3 and the second nitrolley 4, and the connecting means 9 for connecting the third trolley 5 and the fourth trolley 6 have universal joints 16a and 1 at both ends, respectively.
It consists of a rod 17 connected to the trolley via 6b.

A nitrolary 4 that supports the frame 10 for supporting objects to be transported.
The third trolley 5 is provided with a lifting member 20.21 that can be raised and lowered within a certain range with respect to the trolley body 18.19,
These elevating and lowering members 20 and 21 are integrally connected to each other by a rod 22 which is the connecting means 8. or,
A fitted portion 23a is provided at the upper end of both of these elevating members 20.21.
, 23b are provided in a protruding manner.

As shown in FIGS. 1 and 3, the trolley body 18.19 of the trolley 4.5 is provided with a vertical pin 25 projecting upward, and a rotating shaft is loosely fitted onto the vertical pin 25 so that it can only rotate. The vertical cylindrical portion 27 of the elevating member 20.21 is loosely fitted into the body 26, and a pin 28 protruding from the rotating body 26 in the diametrical direction is provided in an elongated hole in the vertical direction provided in the vertical cylindrical portion 27. It is loosely fitted to 29. With this configuration,
The lifting members 2021 can be raised and lowered within a certain range relative to the trolley body 18 and 19, and these lifting members 20
．． 21, the trolley body 18° 19 can rotate relative to the vertical axis. With this configuration and the configuration of the connecting means 7.9, the dolly 1 can run smoothly even on a horizontal curved route, but when there is a vertical curved route, the vertical bin 25 can be connected to the trolley body. It suffices if it is pivoted so that it can swing back and forth at an angle of 18°19. Further, a bottle 28 is provided directly protruding from the vertical pin 25, and the vertical cylindrical portion 27
The lifting member 20.21 may be configured to be rotatable about a vertical axis with respect to the lifting member 20.21.

The frame IO for supporting the transported object has an H-shaped planar shape, consisting of a central front-rear direction member 30 and left-right direction members 31 at both front and rear ends fixed laterally at right angles to both ends of the member 30. A vertical cylindrical portion 33 forming fitting portions 32a and 32b is provided at the lower central portion of the left-right direction member 31 and protrudes downward, and these vertical cylindrical portions 28 are connected to the Toro IJ-4.
, 5 of the vertical pins 2 of the fitted parts 23a, 23b at the upper ends of the
4 in a vertically removable manner.

In addition, horizontal axis guide rollers 34 are pivotally supported on both left and right sides of the elevating member 2021 of the trolley 4.5, and furthermore, horizontal axis guide rollers 34 enter these elevating members 20 and 21 horizontally from the left and right sides. Recessed portion 35 penetrating in the front-rear direction
is formed. In addition, attachments 36 for supporting objects are protruded from the left and right members 31 at both front and rear ends of the frame 10 for supporting objects to be transported, and an attachment 36 for supporting objects to be transported is provided at the lower center of the central longitudinal member 25 as a management code display section. A code plate 37 is attached, and the front and rear sides of the code plate 37 serve as supported parts 38 for transfer.

In FIG. 4, 39 is a conveyance line for the dolly 1, and trolleys 41 to 43 guided by guide rails 40 are installed at appropriate intervals on the conveyance line 39, as also shown in FIG. A driving chain 44 provided with the trolley 41 is stretched, and a main button 45 provided on the trolley 41 engages with the main dog 13 of the first trolley 3, thereby propelling the dolly 1 along the guide rail 2. be done. Trolley 42 is a trolley dedicated to supporting the drive chain, and trolley 4
3 is provided with an auxiliary pusher 46 that backs up the dolly 1 with the main pusher 45 disengaged from the main dog 13 via the auxiliary dogs 14 and 15. Reference numeral 47 denotes a repair line which is a branching detour route of the conveyance line 39, and the repair line 47 is not provided with a drive chino 44 for propelling the dolly 1, or if necessary, a branching device 48 is provided. The dolly 1 branched to the repair line 47 is propelled to a predetermined position, and the transport line 3
A feeder can be installed for merging 9 Hedori-1.

It should be noted that, as shown by imaginary lines in FIGS. 2 and 3, in a specific route portion of the transport line 39, for example, a working section for the transported object W supported by the transported object support frame IO, the horizontal A guide rail 49 can be installed which engages the shaft guide roller 34. This guide rail 49
The elevating members 20° 21 of the first nitrogen trolley 4 and the third trolley 5 are moved through the horizontal axis guide roller 34,
The bin 28 is supported in a slightly raised state within the vertical movement range with respect to the elongated hole 29, and as a result, the frame 10 for supporting the transported object (the transported object W) supported on the elevating member 20.21 The traveling level of the conveyed object is determined, and it is possible to prevent the transported object supporting frame 10 (transferred object W) from swinging in the left and right lateral directions.

Further, the conveyance line 39 and the repair line 47 include a third
As shown by the imaginary line in the figure, a cover plate 50a that covers the lower part of the conveyed object support frame IO of the dolly 1
, 50b can also be installed. At this time, by inserting the cover plate 50a on one side into the recessed part 35 provided in each elevating member 20.21 of the nitrolary 4 and the third trolley 5, the double force bar play) 50a, 5
In addition to narrowing the width of the slit between 0b, the position of the slit can be moved laterally away from the position directly above the trolley travel path or the movement path of the drive chino 44.

The above-mentioned floor conveyor has a dolly 1 mounted on a frame 10 for supporting the transported object W, such as an automobile body, and a main pusher 45 on the drive cheno 44 side to move the transported object W onto the guide rail 2 of the transport line 39. By moving the object W along the line, the object W can be transported to a predetermined position. However, when the object W is to be moved off the line, the dolly 1 carrying the object W is moved along the transport line 39. The fork 52 of the hand forklift 51 shown in FIG. After entering the lower side of the transfer supported part 38 of the support frame 10, the fork 52 is raised and the fifth
As shown in the figure, the supported part 38 for transfer of the supported frame IO is scooped up with the fork 52, and the transported object supporting frame 10 is transferred to the nitroly 4 and the third trolley 5.
Lift the fitting parts 32a, 32b (vertical cylindrical part 33) from the fitting part 2 at the upper end of the trolleys 4, 5.
3a, 23b (vertical pin 24) upwardly,
Frame for supporting transported objects that supports transported objects W! 0
can be separated from Dolly-1. At this time, in order to prevent slippage between the fork 52 and the transfer supported part 38 of the frame lO for supporting the transported object, the fork 52 is attached to the transfer supported part 38 as shown in the figure. An upwardly facing U-shaped attachment 53 that fits can be attached.

The frame 10 for supporting the transported object separated from the dolly 1 by the hand forklift 5I can be transferred to a carrier 54 that is freely movable on the floor, as shown in FIG. 6, for example, and transported to a predetermined location. . This carrier 54 is
Directional fixed wheels 56 are pivotally supported on both left and right sides of the rear end of the H-shaped frame 55, steering wheels 57 are pivotally supported on both left and right sides of the front end of the frame 55, left and right steering wheels are pivotally supported at the center of the front end of the frame 55. A swing plate 58, a tie rod 59 that interlocks both steering wheels 57 via the left and right swing plate 58, a movement operation handle 60 attached to the left and right swing plate 58,
and a pair of front and rear fitted parts 61a, 61b, the fitted parts 62a, 61b are connected to the front and rear pair of fitted parts 32 of the frame 10 for supporting an object.
a, 32b (vertical cylindrical portion 33) are configured from vertical pins 62 that can be vertically fitted and removed freely.

A pair of front and rear fitting portions 3 of the frame lO for supporting the transported object
2a, 32b (vertical cylindrical portion 33) are fitted into a pair of front and rear fitted portions 61a, 61b (vertical bins 62) of the carrier 54 to support the transported object W. Once the lO is transferred onto the carrier 54, the carrier 54 can be moved using the handle 60 to transport the object W to an arbitrary location.

In addition, by performing the transfer operation in the reverse order to the above using the hand forklift 51, the transported object W on the carrier 54 is waiting in the repair line 47 together with the transported object supporting frame IO. Dolly 1 nitroly 4
and third trolley 5.

In addition, in order to improve safety, the first nitrometer of the dolly
When the fitted parts 23a, 23b (vertical bin 24) on the 4 and 3rd trolley 5 side and the fitted parts 32a, 32b (vertical cylindrical part 33) on the transported object support frame 1O side are fitted to each other. , a locking means for irremovably coupling the two may be provided. Although unlocking of this locking means is performed by operating a manual lever, it is preferable that the locking action is performed automatically.

In addition, as in the embodiment, when a management code display section (code plate 37) is provided on the object support frame 10 that is detached from the dolly 1 together with the object W, a line from the repair line 47 is provided. It is possible to attach the same management code to the transported object W after it has been turned off as when it is on the transport line, so that the transported object W that has been turned off the line
When the conveyance object support frame 1o is returned to the original conveyance line, the control can be performed as expected based on the information read by the code reader from the management code display section (code plate 37).

It is also possible to write a code number on the management code display section (code board 37) that can be visually recognized by the operator, which can be useful for management at the time of line-off.

In addition, although the beam pair line 47 is provided in the embodiment, if the dolly 1 can be separated from the main pusher 45 on the drive chain 44 side and stopped in the transport line 39, the transport line 39 can also be used. The conveyed object W can be brought off the line at any arbitrary location inside. Of course, the driving method of the dolly 1 is not limited to the method of the above embodiment.

(Operations and Effects of the Invention) As described above, according to the floor conveyor of the present invention, when an object to be conveyed carried on a dolly is brought on line, the object to be conveyed that constitutes the dolly is Lifting the frame for supporting the transported object together with the transported object upward from the group of trolleys constituting the dolly using the supported transfer portion of the transport frame and a general-purpose transfer means such as a forklift. It can be separated and transported to any location.

That is, instead of bringing the entire dolly that supports the transported object onto the line, only the transported object supporting frame that constitutes the dolly can be separated from the trolley group that constitutes the dolly and brought off the line. Therefore, there is no need for a movable guide rail that is necessary when moving the dolly off the line.Therefore, there is no need for a large and space-consuming dedicated line-off equipment equipped with the movable guide rail, and any part of the line can be moved off the line. Transported items can be taken off the line at any location.

Moreover, instead of just moving the object off the line, the object support frame of the dolly that supports the object is brought off the line together with the object, so the object can be directly moved by a crane, etc. Not only is there no risk of damaging the transported object, compared to cases where the transported object has to be lifted up with a lift or scooped up with a forklift, but it is also safely transported through the frame for supporting the transported object, which is equipped with a supported part for transfer. It is possible to transfer objects to be transported. Of course, since the frame for supporting the transported object is lightweight and low in bulk, a small and lightweight carrier like the one shown in the embodiment can be used as a carrier required for transporting the transported object that has come off the line. I can do it.

[Brief explanation of the drawing]

Figure 1 is a side view, Figure 2 is a partially cutaway plan view, Figure 3 is an enlarged vertical front view, Figure 4 is a schematic plan view explaining the layout of the main parts of the conveyor line, and Figure 5 is a partially cutaway plan view. FIG. 6 is a side view of the main parts and a perspective view of the hand forklift to explain the state when the object is off the line. FIG. l... Dolly-12... Dolly guide rail, 3
~6...Trolley, 7~9...Connecting means, 10...
・Frame for supporting transported objects, 18.19... Trolley body, 20.21-... Lifting member, 23a, 23b...
- Fitted parts, 32a, 32b... Fitting parts, 38...
Supported part for transfer, 39... Conveyance line, 44 River drive chain, 47... Repair line, 51... Hand forklift, 52... Fork. Figure J

Claims (3)

[Claims] (1) A guide rail arranged along a conveyance line, and a dolly for supporting a conveyed object that travels guided by the guide rail, and the dolly has a plurality of objects supported by the guide rail in the front and rear directions. In the floor conveyor, the plurality of trolleys are connected to each other by means of a connection different from the frame for supporting objects, in which the plurality of trolleys are connected to each other by a connecting means different from the frame for supporting objects. The two trolleys that are connected and support the frame for supporting the transported object are each provided with a fitted portion, and the frame for supporting the transported object is fitted in the vertical direction with respect to the two fitted portions. A floor conveyor comprising two removable fitting parts at the front and the rear, a supported part for transfer by a fork of a forklift, etc., and a frame for supporting objects to be transported that can be separated from the two trolleys. . (2) A carrier movable on the floor that removably supports the frame for supporting the transported object separated from the trolley is combined, and the carrier has two fittings on the front and rear of the frame for supporting the transported object. 2. The floor conveyor according to claim 1, wherein the mating part is provided with two fitted parts, the front and the rear, which are vertically fitted and disengaged. (3) The floor conveyor according to claim (1) or (2), wherein the frame for supporting objects to be transported is provided with a management code display section.