JP2003048605A - Rail unit of automated storage and retrieval warehouse - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a light-weight rail unit having excellent mounting characteristics by a rail base having a simple structure and a rail stand having a height adjustment function. SOLUTION: A traveling rail 2 along which a stacker crane is capable of traveling is fixed on a rail base 6 so as to be supported via a height adjustment means 3 provided at the traveling rail 2. In addition, the rail base 6 is fixed to a bottom part of a rack 8 arranged so that the traveling route of the stacker crane intervenes therebetween.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rail unit for an automated warehouse.

[0002]

2. Description of the Related Art Generally, a stacker crane used in an automated warehouse has a guide rail arranged on a traveling rail laid along the floor of a passage and along a ceiling surface in parallel with the traveling rail. Move to be guided by. The stacker crane includes a traveling carriage, a mast, a carriage, a fork device, and the like, and the traveling carriage is provided with a pair of traveling wheels that roll on a traveling rail. Then, based on a command from the control device, the load is stopped at a predetermined load transfer position and the fork device mounted on the carriage is operated to transfer the load to and from the storage rack. In order for the stacker crane to travel in a stable state and to transfer the load to and from the predetermined storage rack smoothly, it is necessary to lay the traveling rail horizontally at a predetermined height.

Conventionally, a traveling rail used in an automatic warehouse is fixed on a large number of sleepers 61 arranged on the floor or the ground, as shown in FIG. And the traveling rail 60
To install the rail horizontally and at a predetermined height with respect to the rack of the automated warehouse, run rail 60 and sleepers 61
Spacers (shims) 62 were inserted between and or between the floor surface and the sleepers 61 for adjustment.

However, since the traveling rail 60 generally has a length of 3 m or more, when adjusting the height of the traveling rail 60, if the height of the sleepers supporting the traveling rail 60 is changed one by one in order, The traveling rail 60 is easily distorted. In addition, the adjustment by the spacer (shim) 62 has a problem that it takes time to align with the rack. further,
After these adjustments have been completed, it is necessary to fix the sleepers 61 to the floor surface with anchor bolts, which requires new construction such as making holes in the floor surface, or grating on the floor surface. However, there is a drawback in that fixing itself with anchor bolts becomes impossible.

Therefore, as a countermeasure for this, for example, Japanese Patent Laid-Open No. 2
As disclosed in Japanese Patent Publication No. 000-118628, the traveling rail is integrated with a rail base provided with height adjusting means,
A technique has been proposed in which by connecting it to a rack, the height can be adjusted easily and the anchor bolt can be fixed without the need. That is, as shown in FIG. 5 and FIG.
An appropriate number of rail units 72, each having a traveling rail 71 fixed to the top of the rails 0 with bolts or the like not shown, are connected to lay a series of traveling rails at predetermined positions. The rail base 70 is formed in a ladder shape by a rectangular frame portion 73 and a reinforcing member 74 arranged so as to be orthogonal to the longitudinal direction of the frame portion 73. The adjusting means 75 is attached. The rail unit 72 is connected and fixed to the rack 77 via an angle member 76 provided on the upper surface of the frame 73 extending in the longitudinal direction of the rail base 70.

[0006]

However, in such a conventional technique, the rail base 70 itself has a relatively large-scale structure, the weight of the rail unit 72 becomes large, and the on-site installation and adjustment are troublesome. There is a drawback that it requires hanging or accuracy of the upper surface of the rail base 70 to which the traveling rail 71 is assembled. Furthermore, the height adjusting means 7
Since 5 is arranged on the lower surface of the rail base 70, the load applied to the traveling rail 71 is transmitted to the floor surface via the rail base 70.
In order to secure the strength of the above, it also had a drawback that it caused an increase in weight.

Therefore, in view of the above-mentioned drawbacks, an object of the present invention is to
A rail base with a simple structure and a rail stand with a height adjustment function are to provide a lightweight and easy-to-install rail unit.

[0008]

In order to achieve the above object, in the invention according to claim 1, a traveling rail on which a stacker crane can travel is fixed on a rail base, and a traveling rail provided on the traveling rail is fixed. The rail base is fixed to the lower portion of the rack arranged across the traveling path of the stacker crane while supporting the traveling rail via the adjusting means.

According to the present invention, since the height adjusting means is directly attached to the traveling rail, the load applied to the traveling rail can be received by the height adjusting means. As a result, the rail base does not need to have unnecessary strength, so that the rail base can be simplified to achieve weighing. Moreover, since the height of the traveling rail can be easily adjusted, the traveling rail can be easily adjusted horizontally.

According to a second aspect of the present invention, in the first aspect of the invention, the rail base has a rectangular frame shape, and a pair of opposite side frames of the rail base are attached to the rack. It was done like this.

According to the present invention, the rail base can absorb the horizontal external force applied to the traveling rail. That is, the rail bases may be arranged in an appropriate number so as to absorb the external force. In addition, since the length of the traveling rail can be set arbitrarily for each rail unit, the spacing between the rail bases can be set large, and the number of rail units that make up the traveling rail installed in the automated warehouse can be minimized. be able to. This facilitated the installation of the rail unit.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a plan view showing the rail unit 1, and FIG. 2 is a perspective view showing the rail unit 1. Figure 3
FIG. 3 is a front sectional view showing an assembled state of a rail unit and a rack. At appropriate places on the lower surface of the traveling rail 2 of a predetermined length,
A rail stand 3 which is height adjusting means is attached. The height of the traveling rail 2 can be adjusted by bolts 4 and nuts 5 provided on the rail stand 3.
Further, a rectangular frame-shaped rail base 6 is attached to the lower surface of the traveling rail 2 by bolts or the like not shown. Angle material 11 forming the side plate of the rail base 6
Bolts 12 to the rack 8 through the mounting holes 10.
It is fixed by. The traveling rail 2 and the rail base 6 form a rail unit 1.

An appropriate number of sets of rail units 1 having the above-described structure are installed at a predetermined position in the space between the racks 8 opposed to each other across the traveling path of the stacker crane, and these are connected to each other. Form a series of running rails. The traveling rails 2 forming each rail unit can be set to have arbitrary lengths. After the rail unit 1 is carried in and placed at a predetermined position, the height adjustment mechanism of the rail stand 3 adjusts the height. When the height adjustment is completed, the bolts 12 are passed through the mounting holes 10 of the angle member 11 of the rail base 6 to be fixedly connected to the rack 8. Here, the mounting hole 10 is a long hole so that the height can be adjusted appropriately. Also, rail stand 3
The axial position of the traveling rail 2 can be appropriately changed and adjusted. When the stacker crane is mounted in such a manner that the stacker crane can travel on the traveling rail 2 after the assembling is completed in this way, the load applied to the traveling rail 2 is entirely the rail stand 3
It is received by and transmitted to the floor. The horizontal external force applied to the traveling rail 2 is received by the rail bases 6 and 7 mounted and fixed to the racks 8 and 9.
Since the rail base 6 only needs to receive an external force in the horizontal direction, it need not be provided excessively and may be provided only at an appropriate place.

The above-described embodiment has the following effects. (1) Since the height adjusting means is directly attached to the traveling rail, its installation position can be selected at any position in the longitudinal direction of the traveling rail as long as it does not interfere with the rail base 6. Therefore, horizontal adjustment of the traveling rail can be easily performed. (2) Since the load applied to the traveling rail does not have to be received by the rail base, the weight and simplification of the rail base can be achieved within a range that is not unreasonable in terms of strength, thereby burdening transportation and the like. It has an effect that quick and accurate assembling work can be performed without causing trouble.

The present invention is not limited to the above embodiment, but can be implemented in the following manners. Although the load applied to the traveling rail 2 is all received by the rail stand 3, it is applied to the traveling rail 2 by applying a pre-load to the rail bases 6 and 7 during assembly. The load can be distributed and received. A clamp member may be used instead of connecting the rail unit and the rack unit with bolts and nuts. In this case, it is not necessary to form a mounting hole. The shape of the rail base is not limited to a quadrangle, but may be another shape such as a hexagon.

[0017]

According to the present invention, a rail unit having a simple structure and a rail stand having a height adjusting function can provide a rail unit which is lightweight and excellent in installation.

[Brief description of drawings]

FIG. 1 is a plan view showing a rail unit.

FIG. 2 is a perspective view showing a rail unit.

FIG. 3 is a front sectional view showing an assembled state of the rail unit and the rack.

FIG. 4 is a perspective view showing a conventional traveling rail.

FIG. 5 is a perspective view showing a conventional rail unit.

FIG. 6 is a front sectional view showing an assembled state of a conventional rail unit and a rack.

[Explanation of symbols]

1 rail unit 2 running rails 3 Rail stand (Height adjustment means) 6 rail base 8 racks 10 mounting holes

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Akihiko Motoya             2-1, Toyota-cho, Kariya City, Aichi Stock Association             Inside Toyota Toyota Industries F term (reference) 3F022 FF01 JJ07 MM02 MM11                 3F333 AA04 BF01 BG01 DA03 DA10                       DB04

Claims (2)

[Claims] 1. A traveling rail on which a stacker crane can travel is fixed on a rail base, and the traveling rail is supported via height adjusting means provided on the traveling rail, and the rail base is attached to the stacker crane. A rail unit for an automated warehouse, characterized in that it is fixed to the lower part of a rack arranged across the traveling path. 2. The rail base has a rectangular frame shape,
The rail unit of the automated warehouse according to claim 1, wherein a pair of opposite side frames of the rail base are attached to the rack.