JPH07228245A - Floor conveyor device - Google Patents

Abstract

PURPOSE:To perform efficient and safe processing of various works at a platform through reduction of a gap between a truck and the platform, in a floor conveyor device provided with a truck running through a work area following a conveyor and a platform for a work extending along rails for the truck. CONSTITUTION:A truck 10 is provided at a side with a vertical toe pin 15 engaged with a conveyor dock 16 and a rotatable guide roller 18 pivotally supported to the toe pin 15. Meanwhile, a floor unit 20 to close a gap (m) between the truck 10 and a platform 19 in a state that an opening part 29 with a given width (n) is left unclosed and a plurality of moving floors 25 to orderly opening the opening 29 along with the passage of the guide roller 18 are arranged at the floor unit 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a floor conveyor device.

[0002]

2. Description of the Related Art A floor conveyor device as shown in FIG. 6 is often found in, for example, automobile manufacturing lines. Reference numeral 1 is a trolley on which processed parts are mounted, and wheels 2 are provided on the lower surface thereof. A rail 3 is placed on the floor surface to guide the movement of the wheels 2 of the carriage 1, and a conveyor 4 for driving the carriage 1 is arranged in parallel with the rail 3. The trolley 1 is provided with a vertical toe pin which engages with the conveyor dock on its side and is driven by the conveyor 4 to sequentially pass through the work area at predetermined intervals. In each work area, a platform 5 is formed along the track of the carriage 1, and while the carriage 1 passes therethrough, various processing is performed on the conveying parts.

[0003]

However, because of the positional relationship with the conveyor 4, a gap m is created between the carriage 1 and the platform 5 to allow the toe pin to pass therethrough.
The worker has to proceed with the processing while paying attention to the gap m, which causes a problem that the working process cannot be efficiently and safely processed.

An object of the present invention is to provide an effective solution for dealing with such a problem.

[0005]

According to a first aspect of the present invention, in a floor conveyor device provided with a trolley that follows a conveyor and passes through a work area, and a platform for work along the track of the trolley, a trolley is provided on the side of the trolley. A vertical toe pin that engages with the conveyor dock is provided, and a plurality of movable floors that sequentially open and close the gap between the platform and the truck as the toe pin passes are provided on the platform.

According to a second aspect of the present invention, there is provided a floor conveyer device including a carriage that follows a conveyor and passes through a work area, and a work platform along the track of the carriage.
A vertical toe pin that engages with the conveyor dock and a guide roller that is freely rotatable around the toe pin as a spindle are provided on the side of the dolly, while a floor unit that closes the gap between the dolly and the platform leaving an opening of a predetermined width is provided. At the same time, the floor unit is provided with a plurality of movable floors whose openings are sequentially opened and closed as the guide rollers pass.

[0007]

According to the first aspect of the invention, since the plurality of movable floors are opened and closed in sequence as the toe pin passes, the gap between the truck and the platform is closed before and after the toe pin passes. Therefore, the gap can be reduced to one movable floor opened by passing the toe pin.

According to the second aspect of the invention, the floor unit reduces the clearance between the carriage and the platform to a predetermined width, and the opening is opened and closed sequentially by a plurality of movable floors as in the first invention. Can be narrowed further. The toe pin follows the conveyor dock and moves through the opening, but even if the gap is small, it can pass smoothly while opening and closing the movable floor with the guide roller.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIGS. 1 and 2, reference numeral 10 denotes a trolley on which a processed component is mounted, and wheels 11 are provided on the lower surface thereof. A rail 12 is placed on the floor surface to guide the movement of the wheels 12 of the carriage 10, and a conveyor 13 for driving the carriage is arranged in parallel with the rail 12. The trolley | bogie 10 is equipped with the bracket 14 which protrudes to the side, through which the toe pin 15 is slidably penetrated vertically. An operating rod 17 for engaging and disengaging the toe pin 15 with the conveyor dock 16 is provided, and a guide roller 18 which is rotatable about the toe pin 15 as a spindle is attached.

The carriage 10 has rails 11 at predetermined intervals.
When the toe pins 15 are placed on the top and engaged with the conveyor dock 16, the toe pins 15 follow the conveyor 13 and sequentially pass through the work area. In each work area, a platform 19 is formed along the track of the carriage 10, and while the carriage 10 passes therethrough, various processing is performed on the conveying parts. Due to the fact that the conveyor 13 passes under the platform 19, the platform 1
A floor unit 20 is provided that closes a gap m with 0, leaving an opening 29 having a predetermined width n. The conveyor 13 is supported in the frame 21 via bearings 23 and wheels 24, and is moved at a low speed in the frame 21 in the transport direction of the carriage 10 when a drive device (not shown) is activated.

Floor unit 20 and platform 19
A roller guide 22 that guides the passage of the toe pin 15 through the guide roller 18 of the carriage 10 is formed in the opening 29, and the floor unit 20 allows the opening 29 to pass through the guide roller 18 at the same height. Accordingly, a large number of movable floors 25 that are opened and closed sequentially are provided. As shown in FIGS. 3 and 4, both ends of each floor 25 are supported by parallel links 26a and 26b so as to freely move back and forth, and are biased in a closing direction by a return spring 27.

As the guide roller 18 passes, the floor 2
In order to smoothly open and close 5, the tapered cut surfaces 28 are formed at both ends on the front end side facing the opening of the floor 25. In FIG. 4, the links 26a and 26b have bolts 31 (constituting a fixed fulcrum) at one end via a bearing 30.
Is connected to the mounting surface 32 on the floor unit side at the other end to the movable floor 25 by a bolt 34 (constituting a swing fulcrum) via a bearing 33.

With this structure, the floor unit 2
Since the movable floor 25 of 0 opens and closes in order as the guide roller 18 passes, all the openings 29 are closed before and after the guide roller 18 passes. Therefore, the opening 29 is formed in one movable floor 25 that is opened by the passage of the guide roller 18.
Since the gap n is reduced, it becomes possible to perform various processing efficiently and safely on the carrier parts of the carriage 10 without paying too much attention to the opening 29.

In this case, the floor unit 20 is used for the carriage 10.
Since the gap m between the platform 19 and the platform 19 is reduced to a predetermined width n, and the opening 29 is further opened and closed by the movable floor 25 in order, the reduction ratio of the gap m can be set large. The toe pin 15 is driven by the conveyor dock 16 to open the opening 29.
Even if the gap n is narrow, the guide roller 18 can smoothly open and close the floor 25 while opening and closing it.

FIG. 5 shows another embodiment as an opening / closing mechanism for the movable floor 25. Each floor 25 is slidably supported in the floor unit 20 by a stroke required for opening and closing, and is rotated around a fulcrum 35. Free short lever 36
Are arranged on both sides in the floor unit 20. A roller 37 that contacts the rear end of the floor 25 is attached to the free ends of these levers 36, and a return spring (not shown) urges the floor 25 in the closing direction. If a long lever 40 is used, these common fulcrums 41 can be set at the center of the floor unit 20. A roller 37 that contacts the floor 25 is also attached to the free end of the lever 40.

Although not shown, the movable floor 25 may be assembled to the platform 19 without using the floor unit 20 to open and close the gap m between the toe pin 15 of the truck 10 and the truck 10 as the truck 10 passes.

[0017]

In summary, according to the first aspect of the present invention, in the floor conveyor device provided with the trolley driven by the conveyor and passing through the work area, and the platform for work along the track of the trolley, the trolley is mounted on the platform. Since the movable floor that opens and closes the gap as it passes through is provided, the gap with the dolly is reduced to one movable floor that opens when the toe pin passes, so various tasks can be processed efficiently and safely on the platform. It becomes possible to do.

According to the second aspect of the present invention, in a floor conveyor device including a truck that follows a conveyor and passes through a work area, and a platform for working along the track of the truck, a conveyor dock is provided on the side of the truck. A vertical toe pin that fits together, and a guide roller that can rotate freely around the toe pin as a spindle are provided, while a floor unit that closes the gap between the carriage and the platform leaving an opening of a predetermined width is provided.
Since the floor unit is provided with the movable floor that opens and closes as the guide roller passes, the clearance between the floor unit and the carriage can be efficiently reduced.

[Brief description of drawings]

FIG. 1 is a perspective view of an essential part showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AA.

FIG. 3 is a view showing how the movable floor is attached.

FIG. 4 is an attachment state diagram of a link.

[Fig. 5] Fig. 5 is a view showing an attached state of a movable floor showing another embodiment.

FIG. 6 is an explanatory diagram of a conventional technique.

[Explanation of symbols]

 10 truck 13 conveyor 15 topin 16 conveyor dock 18 guide roller 19 platform 20 floor unit 22 roller guide 25 movable floor 26a, 26b link 27 return spring 28 cut surface 29 opening n opening gap m clearance between truck and platform

Claims (2)

[Claims] 1. In a floor conveyor device comprising a trolley driven by a conveyor and passing through a work area and a platform for work along the track of the trolley, a vertical toe pin engaging with a conveyor dock is provided on the side of the trolley. A floor conveyor device, which is provided with a plurality of movable floors which are opened and closed in sequence as a topin passes through a gap between the platform and the carriage. 2. In a floor conveyor device comprising a trolley driven by a conveyor to pass through the work area and a platform for work along the track of the trolley, a vertical toe pin engaging a conveyor dock to the side of the trolley. While providing a guide roller that can rotate freely around the toepin as a spindle, a floor unit that closes the gap between the carriage and the platform leaving an opening of a predetermined width is provided, and the opening is attached to the floor unit as the guide roller passes. A floor conveyor device comprising a plurality of movable floors that are opened and closed in order.