JPH061326U - Roller conveyor - Google Patents

Abstract

(57) [Summary] [Purpose] Positions the load in the width direction of the roller. A pair of guide members 39 are fitted to the rollers 33 to 37 of the roller conveyor 30 at predetermined intervals in the axial direction of the rollers. The distance between the guide members 39 on the rollers 33 is substantially equal to the width of the conveyed load,
The rollers 34 to 37 located away from the roller 33
The larger the distance between the guide members 39, the larger. That is, the interval between the guide members 39 gradually decreases along the transport direction A. As a result, the load is
Movement in the width direction is restricted within a predetermined range by each guide member 39. Then, the load gradually becomes closer to the center of the roller as it advances in the transport direction A.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a roller conveyor that supplies a load to, for example, an overhead traveling vehicle.

[0002]

[Prior art]

 2. Description of the Related Art As a conventional roller conveyor, there is known a roller conveyor that has a large number of rotatably provided rollers and delivers a load to a cage that is supported by an overhead traveling vehicle so as to be capable of moving up and down. The loading surface of the cage of an overhead traveling vehicle is composed of a plurality of support plates that can be inserted into the gaps between the rollers. Therefore, when the load is transferred to and from the cage of the overhead traveling vehicle, the cage first descends, and the load mounting surface is located below the roller upper surface. In this state, the load is transferred from the rollers into the cage. The cage then rises, which causes the load to transfer from above the rollers to the cage.

[0003]

[Problems to be solved by the device]

 In order to ensure the delivery of the load from the roller conveyor to the overhead traveling vehicle, a guide member may be provided overhanging the roller conveyor.However, in the case of an overhead traveling vehicle equipped with a cage, such a guide member may be provided. Cannot interfere with the cage and cannot be installed on the roller conveyor. However, if the guide member is not provided at all, if the position of the load on the roller conveyor is uneven, it will be difficult for the load to enter the cage from the roller conveyor. An object of the present invention is to obtain a roller conveyor that can position a load conveyed on the roller.

[0004]

[Means for Solving the Problems]

 The roller conveyor according to the present invention is arranged in parallel with each other and has a large number of rollers for carrying a load, and a plurality of rollers of at least a part of these rollers for providing a movement of the carried load in the width direction. It is characterized by having a guide member for regulating.

[0005]

【Example】

 The present invention will be described below with reference to illustrated embodiments. FIG. 1 shows a roller conveyor 30 and an overhead traveling vehicle 10 according to an embodiment of the present invention. In the roller conveyor 30, the load conveyed along the arrow A direction by the rotation of the rollers 32 to 37 is conveyed into the cage 14 of the overhead traveling vehicle 10. Then, the load is lifted from the roller 32 by the overhead traveling vehicle 10 and is transported to another processing station in the automatic warehouse.

The main body 12 of the overhead traveling vehicle 10 is movably supported by a rail 11 provided near the ceiling surface of the warehouse, and is driven to travel by a traveling device 13. The cage 14 is supported by a stainless belt 15 so as to be capable of moving up and down with respect to the main body 12, and is driven up and down by a lifting device 16.

The cage 14 has an upper frame 17 formed in a gate shape. The upper frame 17 has a pair of cage frames 18 arranged at predetermined intervals along the load carrying direction A. Are connected. The distance between the cage frames 18 is slightly smaller than the width of the conveyor frame 31 of the roller conveyor 30 described later. A plurality of support plates 19 extending in a direction perpendicular to the transport direction A are provided between the cage frames 18. The support plates 19 are provided at substantially equal intervals, and the support plates 19 form a load mounting surface. The spacing between the support plates 19 is formed to be larger than the thickness of the rollers 32 to 37 of the roller conveyor 30, and the support plates 19 can pass vertically between the rollers 32.

The cage 14 has a height position where the upper frame 17 is located near the main body 12 (hereinafter referred to as an upper limit position) and a height position where the upper surface of the support plate 19 is lower than the upper surface of each roller 32 (hereinafter referred to as the upper position). , Lower limit position). That is, the cage 14 lowers the load from the upper limit position to the lower limit position with the load placed on the support plate 19 to pass the support plate 19 from above the roller 32 to below the load, and the load is transferred to the roller 32. Place on top. Further, the cage 14 moves up from the lower limit position to the upper limit position to pass the support plate 19 upward from below the roller 32 and receive the load on the roller 32 onto the support plate 19.

When the cage 14 is at the lower limit position, the positioning guide pins 38 of the roller conveyor 30 are fitted into the positioning holes 20 respectively provided at the outer center of the cage frame 18. As a result, the cage 14 is positioned at a predetermined position with respect to the roller conveyor 30.

The conveyor frame 31 of the roller conveyor 30 is erected on the floor surface of the warehouse, and a large number of rollers 32 to 37 are rotatably provided. These rollers are rotationally driven by a drive mechanism (not shown), and the load on the roller conveyor 30 is conveyed thereby.

Of the rollers 32 to 37, when the cage 14 is at the lower limit position where the cage 14 is positioned by the guide pin 38, a roller 33 that is close to the cage 14 and a plurality of rollers upstream of the roller 33 in the transport direction. A pair of guide members 39 are fitted to 34 to 37, respectively. Each guide member 39 is provided at a position equidistant from the center of each of the rollers 33 to 37 at a predetermined distance in the axial direction of the roller.

As shown in FIGS. 2 and 3, the guide member 39 is formed in a substantially cylindrical shape, and has a tapered guide at a corner inside the roller conveyor 30 when attached to the rollers 33 to 37. It has a face 40. The guide surface 40 is formed so as to be inclined at a predetermined angle with respect to the outer peripheral surfaces of the rollers 33 to 37, and engages with the side surface of the load conveyed on the rollers 33 to 37 to extend in the width direction of the load. Regulate movement. The interval between the guide members 39 on each roller 33 is almost equal to the width of the conveyed load, and the rollers 34 to 37 located farther from the roller 33 are larger. That is, the space between the guide members 39 gradually narrows along the transport direction A.

Next, the operation of this embodiment will be described. The overhead traveling vehicle 10 travels along the rail 11 by the traveling device 13 with the cage 14 held at the upper limit position, and stops above the roller conveyor 30. Next, the cage 14 is lowered to the lower limit position by the operation of the lifting device 16. At this time, the positioning guide pin 38 of the roller conveyor 30 is fitted into the positioning hole 20 of the cage 14, and the cage 14 is positioned at a predetermined position of the roller conveyor 30.

In this state, the load is carried on the roller conveyor 30 along the carrying direction A. The movement of the load being conveyed is regulated by the guide member 39 in the width direction within a predetermined range, and is gradually positioned substantially in the center of the rollers 33 to 37 in the width direction as the load moves downward. When the positioned load reaches above the cage 14, the operation of the rollers 32 to 37 is stopped. Then, the lifting device 16 of the overhead traveling vehicle 10 is operated to raise the cage 14 to the upper limit position. At this time, the support plate 19 of the cage 14 passes between the rollers 32 from below to above, and the load on the rollers 32 is delivered to the support plate 19 side. With the cage 14 raised to the upper limit position, the overhead traveling vehicle 10 travels along the rails 11 and conveys the load to a predetermined processing station.

As described above, according to the present embodiment, the load can be positioned on the roller conveyor 30, so that the load can be reliably entered into the cage 14.

In the above embodiment, one roller is provided with the pair of guide members 39. However, the present invention is not limited to this, and one roller is provided with only one guide member 39. It may be.

[0017]

[Effect of device]

 As described above, according to the present invention, the effect that the load conveyed on the roller can be positioned can be obtained.

[Brief description of drawings]

FIG. 1 is a perspective view showing a roller conveyor and an overhead traveling vehicle according to an embodiment of the present invention.

FIG. 2 is a plan view showing a roller conveyor.

FIG. 3 is a diagram showing a roller and a guide member.

[Explanation of symbols]

 30 roller conveyor 32-37 roller 39 guide member

Claims (1)

[Scope of utility model registration request] 1. A large number of rollers which are arranged in parallel with each other and which convey a load, and a guide which is provided on at least some of the plurality of rollers to regulate the movement of the conveyed load in the width direction. A roller conveyor comprising: a member.