JPH0514006U - Goods transfer device - Google Patents

Abstract

(57) [Summary] [Purpose] When a slide fork is used to support an article, the left and right position of the article relative to the slide fork is automatically determined accurately, and vibration is applied while the article is being moved by the slide fork. Make sure the article does not move to the left or right. A slide fork 9 is provided on a horizontal wall 10, a pair of left and right hanging walls 11 hanging down on the left and right edges of the horizontal wall 10, and the lower ends of these hanging walls 11 so as to face each other. And a pair of left and right horizontal overhanging walls 12 that are formed so that the slide fork 9 is fitted in the upper and lower direction of the case 20 from the front-rear direction, and the center edge of the left and right horizontal overhanging walls 12 is formed. The space between them is equal to or slightly larger than the left-right space of the case 20 not including the flange 21, and the inner space of the left and right hanging walls 11 is equal to or slightly larger than the space between the left and right end portions of the flange 21.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an article transfer device provided in, for example, a stacker crane of an automatic warehouse.

[0002]

[Conventional automated warehouse]

 The following are known as conventional automatic warehouses. That is, a rack device having a large number of upper and lower and left and right product storage shelves having a fork passage gap that allows vertical movement of a slide fork, which will be described later, and a stacker crane movably provided in front of the rack device. The stacker crane includes a traveling carriage, an elevating stand that is movable up and down on a mast that is erected on the traveling carriage, and a slide fork that is slidable forward and backward on the elevating base. Those who have are known.

[0003]

[Operation of conventional technology]

 The operation of the conventional slide fork will be described. A conventional slide fork pulls an article into the elevator by performing the operations of projecting the article downward, lifting the article by raising the elevator, and moving the article in and out of the elevator. You can unload the goods.

[0004]

[Disadvantages of the prior art]

 The conventional article transfer device including the lifting table and the slide fork has the following drawbacks. That is, since the article is simply supported by the slide fork, when the article is supported by the slide fork, the position of the article with respect to the slide fork cannot be automatically determined accurately, and the article is not supported. There was a drawback that the articles would move due to vibrations etc. while they were being placed on the slide fork and moved.

[0005]

[Means for eliminating the above drawbacks]

 This invention adopts the following means in order to solve the above-mentioned drawbacks. This invention has a long slide fork in the front-rear direction, which is slidably mounted on the lower surface of a lift table and which conveys a case having left and right overhanging pieces formed on the top. The horizontal wall, a pair of left and right hanging walls provided in a hanging shape on the left and right edges of the horizontal wall, and a pair of left and right horizontal overhanging walls provided so as to face each other at the lower ends of the hanging walls. The slide fork is fitted in the upper part of the case from the front-rear direction.

[0006]

[Function of the device]

 This device has the following actions. After making the space between the horizontal overhanging walls face the left and right overhanging pieces formed on the upper edge of the case, slide the slide fork toward the case and place the slide fork under the left and right overhanging pieces. Position the horizontal overhanging wall on the base, then raise the elevator to support the left and right overhanging pieces by the horizontal overhanging wall, and then move the case to the elevator by retracting the slide fork toward the elevator. It can be transferred, and the case can be lowered to the article storage shelf etc. by the reverse operation. When the left and right overhanging pieces of the case are supported by the horizontal overhanging wall of the slide fork, the left and right overhanging pieces touch the hanging wall or the case itself hits the horizontal overhanging wall. The horizontal position of is automatically and accurately determined. In addition, the case does not swing to the left or right during transportation of the case.

[0007]

【Example】

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

A pair of front and rear rack devices 1 are arranged at a predetermined interval in the front-rear direction, and each of these rack devices 1 has a large number of article storage shelves 2 in the vertical and horizontal directions. The inlet / outlet openings 3 of 2 face each other.

A pair of left and right guide rails 4 are provided between the rack devices 1, and a stacker crane 5 is guided by these guide rails 4 so as to be movable left and right. The stacker crane 6 includes a traveling carriage 6 that is self-propelled, a lift 8 that is vertically movable on a mast 7 that is installed upright on the carriage 6, and a lower surface of the lift 8 that is moved back and forth by a well-known forward and backward device. It has a slide fork 9 which is long in the front-rear direction and is provided so as to horizontally project in any direction. The slide fork 9 has a width to fit between the columns of the rack device 1.

The slide fork 9 is arranged so that the horizontal wall 10, a pair of left and right hanging walls 11 provided in a hanging shape on the left and right edges of the horizontal wall 10, and the lower ends of the hanging walls 11 face each other. And a pair of left and right horizontal overhanging walls 12 provided. The horizontal overhanging wall 12 is formed with a taper edge portion 13 that extends forward at the front portion, and a taper edge portion 13 that extends backward at the rear portion. A flange 21 is formed around the entire upper end of the case 20 stored in the article storage rack 2, and left and right portions of the flange 21 are left and right projecting pieces.

The distance between the central parallel edges of the left and right horizontal overhanging walls 12 is equal to or slightly larger than the left and right distance of the case 20 not including the flange 21, and the inner diameter of the left and right hanging walls 11 is reduced. The distance is equal to or slightly larger than the distance between the left and right ends of the flange 21. With such a configuration, the slide fork 9 can be fitted in the upper part of the case 20 including the left and right parts of the flange 21 from the front-rear direction so that the horizontal overhanging wall 12 can be positioned below the left and right parts of the flange 21. Has been done.

A loading / unloading station 15 is provided on the left side of each of the rack devices 1.

[0013]

[Operation of the embodiment]

 Next, the operation of the embodiment apparatus will be described. After the space between the horizontal overhanging wall 12 and the horizontal wall 10 is made to face the left and right parts of the flange 21 of the case 20, the slide fork 9 is projected toward the case 20 so that the left and right parts of the flange 21 are protruded. Position the horizontal overhanging wall 12 below, and then lift the lifting platform 8 to support the left and right portions of the flange 21 by the horizontal overhanging wall 12, and then slide the slide fork 9 back and forth to the lifting platform 8 side. By doing so, the case 20 can be transferred to the raising / lowering table 8, and the case 20 can be lowered to the article storage shelf 2 or the like by the operation reverse to the above. When the left and right parts of the flange 21 of the case 20 are supported by the horizontal overhanging wall 12 of the slide fork 9, the left and right parts of the flange 21 contact the hanging wall 11 and the case 20 itself extends over the horizontal overhanging wall 12. Since it hits, the lateral position of the case 20 with respect to the slide fork 9 is automatically and accurately determined. Further, the case 20 does not swing to the left or right while the case 20 is being transported.

[0014]

[Effect of the device]

 The present invention has the following effects due to the above-described configuration. The horizontal overhanging wall of the slide fork supports the left and right overhanging pieces of the case without play in the front, rear, left, and right directions with respect to the slide fork, so that the left and right position of the case with respect to the slide fork is automatically and accurately determined. Can be done. In addition, the case does not move laterally due to vibration or the like during transfer of the case by the slide fork. Since the slide fork has a horizontal wall, a pair of left and right hanging walls, and a pair of left and right horizontal overhanging walls, the slide fork is highly rigid, and thus is difficult to bend.

[Brief description of drawings]

FIG. 1 is a simplified plan view showing an embodiment of the present invention.

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

FIG. 3 is an enlarged view of part A of FIG.

4 is a sectional view taken along line IV-IV of FIG.

5 is a sectional view taken along line VV of FIG.

FIG. 6 is a perspective view of a main part.

[Explanation of symbols]

 8 Lifting platform 9 Slide fork 10 Horizontal wall 11 Hanging wall 12 Horizontal overhanging wall 20 Case 21 Flange

Claims (2)

[Scope of utility model registration request] 1. A longitudinally extending slide fork, which is slidable in the longitudinal direction, is provided on the lower surface of an elevating table for transporting a case having left and right overhanging pieces formed on the upper part thereof, and the slide fork comprises: A horizontal wall, a pair of left and right hanging walls provided in a hanging shape on the left and right edges of the horizontal wall, and a pair of left and right horizontal overhanging walls provided so as to face each other at the lower ends of the hanging walls. An article transfer device in which the slide fork is fitted into the upper part of the case from the front-rear direction. 2. A large number of cases having left and right overhanging pieces formed on an upper portion thereof, and a slide fork long in the front-rear direction, which is slidable in the front-rear direction on a lower surface of an elevating table for carrying these cases. And the slide fork has a horizontal wall,
It has a pair of left and right hanging walls provided in a hanging shape on the left and right edges of the horizontal wall, and a pair of left and right horizontal projecting walls provided so as to face each other at the lower ends of these hanging walls, The slide fork is fitted in the upper part of the case from the front-rear direction, and the distance between the central edge portions of the left and right horizontal overhanging walls is equal to the left-right distance of the case not including the left and right overhanging pieces. An article transfer device in which the inner spacing of the left and right hanging walls is equal to or slightly larger than the end spacing of the left and right overhanging pieces.