JP2009137665A - Suspending and carrying device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve such a problem that since a conventional suspending and carrying device has a specific shape and structure corresponding to each process, operation from some directions cannot be performed by using the device having the specific shape, requiring to transfer a vehicle each time a process is changed. <P>SOLUTION: In this suspending and carrying device, in a rail part, a front side rail 1 and rear side rails 2 which are vertically movable independently and a rail 3 for right and left inclination are provided in parallel. A traveling part is provided with a traveling frame 4 having traveling wheels engaged with the front side rail 1, the rear side rails 2 and the rail 3 for right and left inclination and traveled and with a placement frame 5 on which a carried object can be placed. A front/back frame of the traveling frame 4 has an arcuate shape in front side view. An upper frame 6 of the placement frame 5 has right/left movement wheels 63 engaged with the arcuate-shaped frame of the traveling frame 4 and movable in right and left sides and with right/left inclination traveling wheels 64 engaged with the rail 3 for right and left inclination and traveled, and a lower frame 8 has a carried object placement part 80 on which a carried object can be placed. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a suspended conveying device that conveys an object to be conveyed such as a car body of an automobile in an automobile manufacturing factory or the like. More specifically, the present invention relates to a suspended transport device that has a transported object placing portion on which a transported object is placed and travels while the transport device itself is suspended from a travel rail.

  In an automobile manufacturing factory, work is carried out while transporting automobiles for each process such as painting and inspection. And the cart and suspension conveyance apparatus which convey a motor vehicle used the conveyance cart and suspension conveyance apparatus of the structure specialized and specialized for every process.

  For example, in a suspended type transport device that travels while being suspended by a traveling rail, a device having a structure of a wide rectangular parallelepiped frame as shown in FIG. 10 or a long and narrow rectangular parallelepiped as shown in FIG. The structure of the frame was known. In addition, an apparatus for carrying on a carriage as shown in FIG. 12 is also common.

  Conventionally, the use of specialized carts and suspension conveyors that are specialized for each process is a shape that facilitates the work required in that process, and is not a shape that takes into account other work. Therefore, depending on the shape and structure of the suspension device, there are directions in which work cannot be performed and directions in which work cannot be performed. For example, as shown in FIGS. 10 to 12, the work can be performed from the direction of the white arrow, but the work cannot be performed from the direction of the black arrow X. The transport cart cannot perform work from below, and there is a problem that the work cannot be performed because the frame is obstructive even with the shape and thickness of the frame.

  Also, when working on the upper part of the vehicle body and the upper surface in the case of a suspended conveying device as in the past, a work table is used to obtain the height of the worker, but even in that case it becomes an unreasonable working posture, There were drawbacks associated with the work. For example, because the work posture is tilted forward, there is a risk that the worker touches the vehicle body to support the body and damages the vehicle body, and there is a risk that the worker may work out of the work table. There was a problem.

  Furthermore, since the conventional transfer apparatus has a different shape for each process, it is necessary to change the vehicle each time the process is changed. For this reason, it takes time for the replacement work and it cannot be said that the work efficiency is good.

To solve the above problems, it consists of a rail part and a traveling part,
The rail portion is provided with a front side rail, a rear side rail, and a left and right tilt rail in parallel, and the front side rail and the rear side rail can be independently moved up and down,
The traveling unit includes a traveling frame that travels by engaging the front side rail, the rear side rail, and the left and right tilt rails with each traveling wheel, and a placement frame on which the object to be conveyed can be placed,
The traveling frame is a rectangular frame in plan view, and the front and rear frames are arc-shaped frames when viewed from the front. The traveling frame is engaged with the front rail and the front traveling wheel is engaged with the rear rail. A rear traveling wheel capable of traveling,
The mounting frame has an upper frame, a lower frame, and a vertical frame,
The upper frame engages with the arcuate frame of the traveling frame and can move left and right, and the left and right inclined traveling that engages with the left and right inclined rail and travels along the shape of the left and right inclined rail. With wheels,
The lower frame has a transported object placing portion on which a transported object can be placed,
The vertical frame proposes a suspended conveying device characterized by connecting an upper frame and a lower frame in the vertical direction.

  The suspension according to item 0007, wherein the right-and-left tilt rail is a rail having a diagonal portion that is continuous from a parallel and narrow interval to a parallel and wide interval with respect to the front side rail and the rear side rail. Propose a transfer device.

  Furthermore, the suspension conveying apparatus described in the 0007 column or the 0008 column is proposed in which the arc shape of the arc-shaped frame of the traveling frame is an arc shape having a high center top and a low left and right side.

  Furthermore, the mounting frame has a frame in which the upper frame has a long front and rear, and the vehicle mounting portion of the lower frame includes the front and rear vehicle mounting portions that are spaced apart from each other with the front and rear vertical frame as a connecting portion. The suspension conveying device described in the 0007 column, the 0008 column, or the 0009 column is proposed.

  According to the present invention, the mounting frame can be tilted left and right in the traveling direction, and the front and rear can be inclined in the traveling direction by lowering the front side rail or the rear side rail. The object to be transported such as a mounted vehicle can also be tilted left and right or / and back and forth in the traveling direction, and particularly, the work on the upper and upper surfaces of the object to be transported can be easily performed.

  Specifically, the work on the upper and upper surfaces of the conveyed object can be performed without changing the height of the operator such as the work table.

  In addition, the mounting frame is inclined left and right or / and front and rear in the traveling direction, the upper frame has a long frame in the front and rear, and the vehicle mounting portions of the lower frame are connected to each other using the front and rear vertical frames as a connecting portion. Since it is composed of the vehicle placement portions before and after being spaced apart, the azimuth and the place where the worker cannot perform the work and the work cannot be performed are very few compared with the conventional transfer device.

  Therefore, in the automobile manufacturing process, conventionally, a different transfer device is used for each process, and each time the work process is changed, it is necessary to change the body to be transferred. Because there is almost no, it can be used in common to each process. As a result, the transport system is unified, and the work of replacing is not required, so that the work efficiency is greatly improved.

  1 and 2 which are perspective views seen from an oblique upper part, and FIG. 3 and FIG. 4 which are rear views seen from a rear part in the traveling direction, a traveling frame and a mounting frame. FIG. 5 is an enlarged view of the main part of FIG. 5, FIG. 6 is a partially enlarged perspective explanatory view showing the slanted state of the suspended conveying device at a low rear side, and FIG. 8 will be described based on FIG. 8, which shows a conveyance state in which the left inclination and the rear inclination are performed simultaneously, and FIG. 9, which is a perspective view as seen from an oblique upper part of only the mounting frame.

  The suspended conveying device according to the embodiment of the present invention includes a rail portion and a traveling portion, and each rail portion has a height of about 2 to 2.5 m from the floor surface in parallel with the floor surface in the air of a factory or the like. The front side rail 1, the rear side rail 2, and the right and left tilt rail 3 are provided. A traveling frame 4 and a mounting frame 5 are provided as a traveling unit that is attached to the rail portion and travels.

  In this embodiment, the front side rail 1 and the rear side rail 2 are provided with the front side rail 1 in the center and two rear side rails 2 provided in parallel on the left and right sides thereof. Then, two front side rails may be provided on the left and right. The front-side rail 1 and the rear-side rail 2 can move independently in parallel up and down. In this embodiment, the front-side rail 1 is shaped like a H-shaped steel, the rear-side rail 2 and the left-right tilting rail 3 are made of U-shaped steel, and the rear-side rail 2 is a central front-side rail 1, respectively. The opening is directed in the direction, and the right and left tilt rail 3 opens downward.

  The left and right inclined rails 3 are provided in the lateral direction of the front side rail 1 and the rear side rail 2, and fixed to the left side in this embodiment in the running direction (traveling direction), as shown in FIGS. 1 and 8. In addition, the front side rail 1 and the rear side rail 2 have diagonal portions 3S that are continuous from a parallel and narrow space 3N to a parallel and wide space 3W. The left and right inclined rails 3 can be similarly provided on the right side of the front side rail 1 and the rear side rail 2 depending on the position of the work process.

  A portion 3N, which is parallel to the front side rail 1 and the rear side rail 2 of the right and left tilt rail 3 and has a narrow interval, is a place where the mounting frame 5 of the traveling unit travels in a normal state. The front side rail 1 and the rear side A portion 3W that is parallel to the rail 2 and has a wide interval is a portion that travels in a state in which the mounting frame 5 of the traveling unit is tilted left and right (inclined to the left in FIGS. 1 and 8). The positions and lengths at which the narrow portions 3N and the wide portions 3W of the left and right tilt rails 3 are provided are provided according to the characteristics of each installed process.

  The traveling frame 4 is rectangular in plan view, and the front frame 40a and the rear frame 40b in the traveling direction are arc-shaped frames when viewed from the front, and the left and right horizontal frames 41 are linear. Each arc-shaped frame 40a, 40b of the traveling frame 4 has an arc shape that is high on the center of the arc shape and low on the left and right. The front frame 40a and the rear frame 40b are made of U-shaped steel and open inward.

  Two front wheel mounting portions 44 are erected upward at the arc-shaped central portion of the front frame 40a, and front traveling wheels 42 are respectively provided on opposite surfaces of the front wheel mounting portion 44. It is engaged with 1 H-section steel so that it can run.

  Two rear wheel mounting portions 45 are erected upward in the vicinity of the arc-shaped central portion of the rear frame 40b, and rear running wheels 43 are respectively provided on the surfaces of the rear wheel mounting portions 45 facing outward. Each of the left and right rear rails 2 and 2 is engaged with a U-shaped steel so as to be able to run.

  The mounting frame 5 includes an upper frame 6, a vertical frame 7, and a lower frame 8. The upper frame 6 has one main frame 60 composed of a relatively long linear column parallel to the rail portion, and a central portion fixed horizontally in the direction perpendicular to the running direction in the vicinity of the central portion in the longitudinal direction of the main frame 60. The two front and rear inclined frames 61 made of relatively short linear columns and the front and rear end portions of the main frame 60 are fixed in a horizontal direction in a right angle direction on the opposite sides of the main frame 60 and are relatively short straight lines. It consists of an end frame 62 made of a column.

  The inclined frame 61 is engaged with the left and right moving wheels 63 that are movable to the left and right by engaging the U-shaped steel of the front frame 40 a and the rear frame 40 b that are arc-shaped frames of the traveling frame 4, and the left and right inclined rails 3. In addition, the vehicle has a left / right inclined traveling wheel 64 that travels along the shape of the left / right inclined rail 3. The left and right moving wheels 63 and the left and right inclined traveling wheels 64 are respectively provided at the left and right ends of the column body of the inclined frame 61. As shown in FIG. 5 (the left and right tilt rail 3 is not explicitly shown), the left and right moving wheel 63 is attached to the front surface of the tilt frame 61 with the rotation axis facing the front and rear direction. The rotation axis is attached to the upper surface of the inclined frame 61 so as to face the up and down direction.

  The front and rear end frames 62 have the same length and protrude in the reverse direction, and the vertical frame 7 is provided in the vertical direction at the protruding end. A lower frame 8 is connected horizontally to the lower end of the vertical frame 7, and the upper frame 6 and the lower frame 8 are connected in the vertical direction.

  The lower frame 8 has a vehicle placement portion 80 on which a vehicle can be placed. The vehicle mounting portion 80 includes two front and rear mounting frames 80a that are spaced from each other from the front and rear vertical frames 7 in the front-rear and left-right inner directions, and each has a vehicle mounting protrusion 80b on the upper surface. Yes.

  Next, the operation of the suspended conveying device according to the embodiment of the present invention will be described. A transported object such as a car body of an automobile is placed on the vehicle placement unit 80. Since the vehicle placement portion 80 is composed of two placement frames 80a that are spaced apart from each other, the vehicle placement portion 80 can also be operated from below.

  The traveling unit performs operations such as painting and inspection while slowly traveling in the traveling direction of FIG. 1 by a driving device (not shown). FIG. 1 shows a normal traveling state of the mounting frame 5 of the suspended conveyance device, and FIG. 2 shows a left inclined traveling state of the mounting frame 5.

  When it is desired to incline the mounting frame 5 in the front-rear direction, as shown in FIGS. 6 and 7, the front-side inclination is caused by lowering or raising either the front-side rail 1 or the rear-side rail 2. The vehicle on which the vehicle is mounted is inclined forward or backward.

  The left and right inclined traveling wheels 54 provided on the inclined frame 61 of the mounting frame 5 are provided with the left and right inclined rails 3 only on the left side in FIG. Then run. In a portion 3N where the distance between the left and right tilt rails 3 between the front rail 1 and the rear rail 2 is narrow, the tilt frame 61 of the mounting frame 5 is in a horizontal state, and the mounting frame 5 travels in a normal state.

  The left and right traveling wheels 64 that run and enter the oblique portion 3S that is continuous from the parallel and narrow interval 3N are also engaged with the left and right wheels so that the left and right traveling wheels 64 are engaged with the front frame 40a and the rear frame 40b that are arc-shaped frames. The combined left and right moving wheels 63 move to the left along the arc-shaped groove (movement of the arrow in FIG. 5). Therefore, when the right and left tilt traveling wheel 64 is positioned at a location 3W where the distance between the left and right tilt rails 3 is wide, it is positioned at the leftmost end of the arcuate frame, and is fixedly coupled to the tilt frame 61 accordingly. The entire mounting frame 5 including the frame 60, the end frame 62, the vertical frame 7, and the vehicle mounting portion 80 is tilted to the left in the traveling direction. In this state, the upper part and the upper surface of the vehicle are lowered, so that the work can be easily performed.

  FIG. 8 shows a state in which a left or right inclination and a front or rear inclination are simultaneously performed. Accordingly, the vehicle body placed on the vehicle placement unit 80 can take various postures, and various operations can be easily performed.

  The present invention is used in various processes for carrying out work while transporting an object to be transported in a manufacturing plant such as an automobile.

The perspective view which looked the driving | running | working in the normal state from the diagonal upper part with the mounting frame of the suspension conveyance apparatus which is embodiment of this invention The perspective view which looked at the driving | running | working in the state in which the mounting frame of the suspending conveyance apparatus inclined to the left from the diagonally upper part Similarly, a rear view of traveling in a normal state with the mounting frame of the hanging transfer device viewed from the rear in the traveling direction Similarly, a rear view of traveling in a state in which the mounting frame of the hanging transfer device is tilted to the left as viewed from the rear in the traveling direction. Similarly it is a principal part expansion perspective view of a run frame and a mounting frame, and explanatory drawing in which a mounting frame shifts from a normal state to a left inclined state Similarly, a partially enlarged perspective explanatory view showing an inclined state in which the rear of the traveling frame and the mounting frame is low. Similarly, the side view showing the normal state of the traveling frame and the mounting frame and the inclined state where the rear is low Similarly, a side view showing a state where the traveling frame and the mounting frame are tilted rearward with the mounting frame tilted to the left. The perspective view seen from the diagonal upper part of the same mounting frame A perspective view of a conventional hanging transfer device A perspective view of a conventional hanging transfer device Perspective view of a conventional transport cart

Explanation of symbols

1 Front side rail 2 Rear side rail 3 Left and right tilt rail 3N The left and right tilt rail has a narrow space between the front side rail and the rear side 3W The left and right tilt rail has a wide space between the front side rail and the rear side 3S Slant place where right and left tilt rails connect a narrow part and a wide part 4 traveling frame 40 arc-shaped frame 40a front frame 40b rear frame 41 side frame 42 front traveling wheel 43 rear traveling wheel 44 front wheel mounting part 45 rear Wheel mounting portion 5 Mounting frame 6 Upper frame 60 Main frame 61 Inclined frame 62 End frame 63 Left and right moving wheels 64 Left and right inclined traveling wheels 7 Vertical frame 8 Lower frame
80 Vehicle placement section
80a Mounting frame
80b Protrusion for vehicle placement

Claims (4)

It consists of a rail part and a traveling part,
The rail portion is provided with a front side rail, a rear side rail, and a left and right tilt rail in parallel, and the front side rail and the rear side rail can be independently moved up and down,
The traveling unit includes a traveling frame that travels by engaging the front side rail, the rear side rail, and the left and right tilt rails with each traveling wheel, and a placement frame on which the object to be conveyed can be placed,
The traveling frame is a rectangular frame in plan view, and the front and rear frames are arc-shaped frames when viewed from the front. The traveling frame is engaged with the front rail and the front traveling wheel is engaged with the rear rail. A rear traveling wheel capable of traveling,
The mounting frame has an upper frame, a lower frame, and a vertical frame,
The upper frame engages with the arcuate frame of the traveling frame and can move left and right, and the left and right inclined traveling that engages with the left and right inclined rail and travels along the shape of the left and right inclined rail. With wheels,
The lower frame has a transported object placing portion on which a transported object can be placed,
The vertical transfer frame is a suspended transfer device characterized in that the upper frame and the lower frame are connected in the vertical direction.   The suspended conveyance according to claim 1, wherein the right and left inclined rail is a rail having diagonal portions that are continuous with respect to the front side rail and the rear side rail from a portion that is parallel and narrow to a portion that is parallel and wide. apparatus.   The suspended conveyance device according to claim 1 or 2, wherein the arc shape of the arc-shaped frame of the traveling frame is an arc shape having a high center top and a low left and right sides.   The mounting frame has a frame whose upper frame is long in the front and back, and the transported object mounting part of the lower frame is connected to the front and rear transported object mounting parts spaced apart from each other by using the front and rear vertical frame as a connecting part. The suspended conveying apparatus according to claim 1, claim 2, or claim 3.

Images