JPH0556813U - Slide fork for transferring goods - Google Patents

Abstract

(57) [Summary] (Corrected) [Purpose] Safely and securely transporting transported goods. [Structure] The article support upper surface of the slide fork 15 is an electromagnet. If the horizontal carrier of the carrier 7 is a ferromagnetic material such as iron, the carrier can be attracted and stably supported by operating the electromagnet while the carrier is supported by the slide fork. I can. Also,
Even if the horizontal carrier of the carrier is not made of a ferromagnetic material such as iron, it can be supported in the same manner by attaching a ferromagnetic plate to the bottom surface of the horizontal carrier.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a slide fork for transferring articles, which is provided on a lifting platform of a stacker crane in an automated warehouse.

[0002]

[Prior Art]

 The following are known as automated warehouses equipped with this type of slide fork. That is, it has a rack device having a large number of article storage shelves vertically and horizontally, and a stacker crane provided in the front of the rack device so as to be movable left and right. That is, it has a lift table that can be lifted and lowered on a mast provided on a carriage, and a slide fork that is slidably mounted on the lift table in the front-rear direction. The slide fork carries out the operations of projecting the article downward, lifting the article by raising the lifting table, and retracting the article to the lifting table side to pull the article into the lifting table and storing the article by the reverse operation. Items can be dropped on shelves.

[0003]

[Disadvantages of the prior art]

 The conventional slide fork has the following drawbacks. That is, there is a case where it is desired to directly store the carriage as an article to be stored in the article storage shelf. However, since the wheels are attached to the bottom surface of the transport carriage, the insertion space for the slide fork is limited in the width direction, and accordingly, the slide fork itself must be formed in a narrow shape. Didn't get In such a slide fork, since the lifted state of the transportation carriage becomes extremely unstable, there is a drawback that it is difficult to move the transportation carriage in and out safely and reliably.

[0004]

[Means for eliminating the above drawbacks]

 This invention adopts the following means in order to solve the above-mentioned drawbacks. In this invention, the upper surface of the slide fork bearing is an electromagnet.

[0005]

[Function of the device]

 This device has the following actions. If the horizontal carrier of the carrier is a ferromagnetic material such as iron, the carrier can be attracted and stably supported by operating the electromagnet while it is supported by the slide fork. I can. Even if the horizontal carrier of the carrier is not made of a strong magnetic material such as iron, it can be supported in the same way as above by attaching a ferromagnetic plate to the bottom of the horizontal carrier.

[0006]

【Example】

 The present invention will be described below based on an embodiment shown in the drawings. In this specification, the front means the front side of FIG. 1, the rear means the back side, the left means the left side of FIG. 1, and the right means the right side of FIG.

The rack device 1 is erected on the floor surface, and is provided with a plurality of article storage shelves 3 capable of accommodating the carriages 7 vertically and horizontally. As shown in FIG. 2, the article storage rack 3 includes a large number of front columns 2 arranged at right and left at predetermined intervals, a rear column 2 arranged at predetermined intervals behind the front columns 2, and front and rear of these columns 2. It is constructed by a pair of left and right article support members 4, 4 that are installed between both columns 2 and 2 and that face each other without the column 2. Between the pair of left and right article support members 4 and 4, there is an insertion space 5 which allows a slide fork 15 to be described later to move mainly in the vertical direction.

In the front area of the rack device 1, a pair of upper and lower guide rails 8 whose longitudinal direction is oriented in the left-right direction are provided, and a stacker crane 9 which is movable left and right along the guide rails 8 is provided. Has been. The stacker crane 9 includes a traveling carriage 10, an elevating stand 12 that is movable up and down by a known elevating device with respect to a mast 11 installed upright on the traveling carriage 10, and a multistage slide bar on the elevating stand 12. It has a slide fork 15 which is horizontally slidable in the front-rear direction by a known advancing / retreating mechanism which is a combination of a gear train and a gear train (not shown). The upper surface of the article support of the slide fork 15 is an electromagnet. Further, a pressure sensitive switch (not shown) is provided on the upper surface of the slide fork 15 on which the carriage 7 is mounted on the slide fork 15, and the pressure sensitive switch is interposed in the power feeding circuit of the electromagnet. Has been done. With such a configuration, the electromagnet is operated while the carriage 7 is mounted on the slide fork 15. A trolley-type power feeding mechanism (a power feeding mechanism having a power feeding rail and a sliding contactor slidably contacting the power feeding rail) is used to feed power to the electromagnet of the slide fork 15, and slide bars and slide forks that slide with each other are used. A power supply rail (not shown) is provided on one of the 15 and a sliding contact (not shown) is provided on the other. With such a structure, that is, since electric power is not supplied to the electromagnet of the slide fork 15 by an electric wire, an accident such as entanglement or disconnection of the electric wire does not occur.

The horizontal carrier of the carriage 7 is made of a ferromagnetic material such as iron. If the horizontal carrier is not made of ferromagnetic material such as iron, attach a ferromagnetic plate to the bottom of the horizontal carrier.

The slide fork of the present invention can be installed in an automated guided vehicle or the like.

[0011]

[Effect of the device]

 The present invention has the following effects due to the above-described configuration. If the bottom of the conveyed article is a ferromagnetic material such as iron, the conveyed article can be stably supported by operating the electromagnet while supporting it with the slide fork. Even if the bottom of the conveyed article is not ferromagnetic, the conveyed article can be supported stably by attaching a ferromagnetic plate to the bottom surface of the conveyed article.

[Brief description of drawings]

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

FIG. 2 is an enlarged sectional view taken along line II-II of FIG.

FIG. 3 is a perspective view of a carriage.

[Explanation of symbols]

 12 Lifting platform 15 Slide fork

Claims (2)

[Scope of utility model registration request] 1. A slide fork provided on an elevating table so as to be horizontally slidable, wherein the article support upper surface is an electromagnet for transferring articles. 2. The slide fork for transferring articles according to claim 1, wherein the slide fork for transferring articles is provided on an elevating table of a stacker crane in an automatic warehouse.