JPH07315217A - Truck safe traveling device on floor conveyor - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent parts from falling from between the front and rear bogies, and to ensure safe traveling of the bogie. [Structure] A bogie main body 21 of a plurality of bogies 13 traveling forward on a floor 11 along a predetermined route.
And rear protrusions 32 are provided on the upper edge of the rear end surface of the carriage body 21 of the carriage 13. Falling object receivers 34, 74 are provided on at least one of a front protruding portion 31 of a front end surface of a truck body 21 and a rear protruding portion 32 of a rear end surface of the truck body 21. Front trolley 13
With the tip of the rear overhanging portion 32 and the tip of the front overhanging portion 31 of the rear carriage 13 butted against each other, the butted portions of the two and the floor 11 are blocked by falling object receivers 34 and 74.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a trolley safe traveling device for safely traveling a trolley in a floor conveyor used for transporting a car body in an automobile factory.

[0002]

Generally, there are provided a plurality of carriages that travel forward on a floor along a predetermined route,
A front protrusion is provided on the upper edge of the front end surface of the bogie main body of the bogie, and a rear overhang is provided on the upper edge of the rear end surface of the bogie main body of the bogie. A floor conveyor is known in which front and rear trolleys are stacked in a state where the front ends of the parts are butted against each other.

In the above conveyor, an assembling work is carried out on a conveyed object placed on the dolly in a state where front and rear dollies are accumulated, and small parts such as bolts and nuts used during the assembling work are erroneously dropped. It may be left as it is.

During the work, parts are left on the abutting portions of the front and rear bogies at the time of stacking, and after the work is completed, the front and rear bogies are separated, and the front end of the rear protruding portion of the front bogie and the front of the rear bogie are separated. If a gap is created between the tips of the overhanging parts, the parts on the abutting part will fall onto the floor through the gap. Then, the truck may step on the parts on the floor, which is dangerous.

An object of the present invention is to provide a vehicle trolley safe traveling device which can prevent parts and the like from falling between front and rear trolleys and can safely travel the vehicle.

[0006]

A bogie safe traveling device according to the present invention comprises a plurality of bogies that travel forward on a floor along a predetermined path, and a forward projecting portion is provided at an upper edge of a bogie main body front end surface of the bogie. However, rear bulges are provided at the upper edges of the rear end surfaces of the trolley body of the trolley, and the front and rear trolleys are in a state where the front bulge of the front trolley and the front bulge of the rear trolley are butted against each other. In a floor conveyor configured to be stacked, a falling object receiver is provided on at least one of a front side of a front end surface of a bogie main body and a rear side of a rear end surface of the main body of the bogie body. In the state where the objects are accumulated, the falling object receiver blocks the space between the abutting portion and the floor.

[0007]

In the bogie safe traveling device according to the present invention, the falling object receiver is provided on at least one of the front end portion of the front end surface of the bogie body and the rear end portion of the rear end surface of the bogie body. Since the falling object receiver is designed to block the space between the abutting part and the floor in the state where they are stacked, the front and rear bogies are separated, and the rear bulge tip of the front bogie and the front bulge tip of the rear bogie are separated. Even if a gap is created between the components and the component tries to fall through the gap, the falling object receiver receives this.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

In the following description, the front and rear sides are referred to as the front side of the carriage (indicated by the arrow A in FIG. 1) and the opposite side, respectively, and the left and right sides are the left and right sides as viewed from the front. Left and right.

Referring to FIG. 1, a rail 11 extending in the front-rear direction is laid on a floor surface 11 along which a truck is mounted.
13 is ready to run. .

The carriage 13 is a rectangular plate-shaped carriage main body 21 which is long in the front-rear direction, and a drive trolley 22 with a motor which is mounted at the center of the front edge of the carriage main body 21 and is arranged to roll on the rail 12. And a rail mounted on the center of the rear edge of the truck body 21
A driven trolley 23 arranged so as to sandwich 12 from both sides,
Casters 24 are provided at four corners of the trolley body 21 and are arranged so as to roll on the floor surface 11.

Although not shown, the carriage main body is equipped with a loading platform for mounting the vehicle body, a lifter for raising and lowering the platform, and the like. Further, a bogie connecting attachment (not shown) and a bogie accumulating attachment are mounted on the front end and the rear end of the bogie body.

A front overhanging portion 31 is provided on the upper edge of the front end surface of the carriage body 21.
However, rear overhang portions 32 are provided at the upper edges of the rear end surfaces of the carriage main body 21, respectively. Then, a falling object chute 33 is located below the front overhang portion 31 on the front end surface of the bogie body 21, and a falling object receiver 34 is located below the rear overhang portion 32 on the rear end surface of the bogie body 21 over the entire length of the bogie body 21 in the width direction. It is provided.

FIG. 2 shows a state in which the tip of the rear protrusion 32 of the front carriage 13A and the tip of the front protrusion 31 of the rear carriage 13B are butted against each other. In this state, the front and rear carriages 13A, 13B are It has been accumulated.

Referring to FIG. 2, the carriage main body 21 is composed of a frame 41 and a top plate 42 mounted on the frame 41. The frame 41 has a front frame member 43 and a rear frame member 44 having a U-shaped cross section. The front frame member 43 and the rear frame member 44 have vertical side walls 43 and 44a, respectively. The front end portion of the top plate 42 that extends forward from the side wall 43a of the front frame member 43 extends the front extension 31 and the top plate that extends rearward from the side wall 43a of the rear frame member 44.
The rear ends of the rear ends 42 form the rear protrusions 32, respectively.

The falling object chute 33 is a side wall 43 of the front frame member 43.
a Vertical plate-shaped mounting portion 52 mounted on the upper portion by a bolt 51, a front downward sloped plate-shaped sliding portion 53 connected to the lower end of the mounting portion 52, and a top plate front protruding portion connected to the upper end of the mounting portion 52.
L-shaped plate-shaped contact portion 54 covering the lower surface and the tip surface of 31
And consists of. A cushion material 55 is provided on the front surface of the vertical portion of the contact portion 54.
Is installed.

The falling object receiver 34 is attached to a vertical plate-like mounting portion 62 which is mounted on the side wall 44a of the rear frame member 44 by bolts 61 and a lower end of the mounting portion 62, and a sliding portion 53 of the chute 33. An inverted L-shaped receiving portion 64 which projects rearward so as to dive underneath and has an upwardly bent edge portion 63 at its tip, and covers the lower surface and the tip surface of the top plate rear overhanging portion 32 which is continuous with the upper end of the mounting portion 62. The L-shaped plate-shaped abutting portion 65 is provided. A cushion material 66 is attached to the rear surface of the vertical portion of the contact portion 65.

Here, the overhang length of the front overhang portion 31 is l1,
The overhang length of the rear overhang 32 is set to 12 and the front and rear bogies 13A,
The rear frame member side wall 44a of the front bogie 13A with the 13B accumulated.
And D is the distance between the rear bogie 13B and the front frame member side wall 43a, then l1 + l2 = D. Meanwhile, a falling object shoot
If the horizontal length of the sliding part 53 of 33 is L1, D> L
1> l1 and the horizontal length of the falling object receiver 34 is set to L2.
Then, D>L2> l2.

As shown in FIG. 3, the front and rear bogies 13A and 13B separated from each other are separated to form front and rear bogies 13A and 13B.
If the gap created between the two is C, then (L1 + L2)-(l
While 1 + l2)> C, the gap C and the floor surface 11 are blocked by the falling object chute 33 and the falling object receiver 34.

As shown in FIG. 2, front and rear bogies 13A and 13B.
It is assumed that the bolts B are mounted on the abutting portions of the rear overhanging portion 32 of the front bogie 13A and the front overhanging portion 31 of the rear bogie 13B in a state where the bolts are accumulated. From this state, front and rear bogies 13A and 13B
Is separated and a gap is created between the rear overhanging portion 32 and the front overhanging portion 31, the bolt B falls through the gap, but the falling bolt B is retained by the sliding portion 53 of the chute 33 in the falling object receiver 34. It is guided toward the receiving portion 64, falls from the lower end of the sliding portion 53 into the receiving portion 64, and does not fall to the floor 11.

Another embodiment is shown in FIG. In this embodiment, instead of the falling object chute 33 of the above embodiment,
Another drop receiver 74 is used. This falling object receiver 74
Similar to the fallen object receiver 34 of the above-mentioned embodiment, is composed of a mounting portion 82, a receiving portion 84 having a bent edge portion 83, and an abutting portion 85. The lower end of 82 is projected forward so as to cross over the receiving portion 64 of the falling portion receiver 34 of the above embodiment.

In the above embodiment, the falling object chute and the falling object receiver both have a uniform horizontal cross section and extend straight, but when they may interfere with the dolly connecting attachment or the dolly accumulating attachment. The falling object chute and the falling object receiver may be bent in the longitudinal direction so that the dolly connecting attachment and the dolly accumulating attachment can be detoured upward or downward.

[0023]

According to the present invention, the front and rear bogies are separated, and a gap is created between the tip of the rear overhanging portion of the front bogie and the tip of the front overhanging portion of the rear bogie, and parts are passed through the gap. Even if an attempt is made to fall, the falling object receiver receives this, so that it is possible to prevent parts and the like from falling between the front and rear bogies, and to ensure safe traveling of the bogie.

[Brief description of drawings]

FIG. 1 is a perspective view of a truck equipped with a traveling safety device according to the present invention.

FIG. 2 is a cross-sectional view of a rear end portion of the front bogie and a front end portion of the rear bogie showing an accumulated state of the bogies.

FIG. 3 is a cross-sectional view of a rear end portion of the front bogie and a front end portion of the rear bogie showing the front and rear bogies separated from each other.

FIG. 4 is a sectional view corresponding to FIG. 2 showing another embodiment.

[Explanation of symbols]

 11 Floor 13 Bogie 21 Bogie body 31 Front overhang 32 Rear overhang 34 Falling object receiver 74 Falling object receiver

Claims (1)

[Claims] 1. A plurality of trolleys (13) traveling forward on a floor (11) along a predetermined route are provided, and a trolley body (21) of the trolley (13) has a front projecting portion (31) at an upper edge of a front end surface of the trolley (13). 21 Rear overhangs 32 are provided on the upper edge of the rear end face, respectively.
In the floor conveyor in which the front and rear bogies 13 of the rear bogie 13 are abutted against each other, the front and rear bogies 13 of the rear bogie 13 are abutted against each other. Below the overhanging part 31 and the trolley body 21
Falling object receivers 34 and 74 are provided on at least one of the rear end faces below the rear overhanging part 32, and the falling object receiver 3 and the floor 11 between the front and rear bogies 13 are stacked.
A safe traveling device for bogies that is designed to block 4 and 74.