Search

JP-2026075998-A - Lifting and conveying device

JP2026075998AJP 2026075998 AJP2026075998 AJP 2026075998AJP-2026075998-A

Abstract

[Problem] To realize a lifting and lowering conveying device that can easily simplify the control of circulating the holding body. [Solution] The lifting and conveying device 100 comprises a plurality of holders 1 for holding objects to be conveyed, a circulation device for circulating the holders 1 along a circulation path CR having lifting sections, and a plurality of transfer sections 3 for transferring objects between the holders 1. The circulation device comprises an endless transmission member 21 arranged along the circulation path CR, and a guide mechanism 22 for guiding the transmission member 21 along the circulation path CR. The plurality of transfer sections 3 are arranged along the lifting sections. The plurality of holders 1 are connected to the transmission member 21 so as to be arranged in a line at regular intervals along the circulation path CR. The second interval P2 of the plurality of holders 1 is set to 1/M of the first interval P1 of adjacent transfer sections 3 (M is an integer of 1 or more). The total length of the transmission member 21 is set to (2N + L/M) times the first interval P1 (N and L are integers of 1 or more). [Selection Diagram] Figure 2

Inventors

  • 吉永 和治
  • 高木 大樹

Assignees

  • 株式会社ダイフク

Dates

Publication Date
20260511
Application Date
20241023

Claims (6)

  1. Multiple holders for holding the object to be transported, A circulation device that circulates multiple of the holders along a circulation path having an elevating section extending in the vertical direction, A plurality of transfer units are arranged along the lifting section, and the transfer of the object to be transported takes place between the holder and the transfer unit, A lifting and lowering conveying device equipped with, The circulation device comprises an endless transmission member arranged along the circulation path and a guide mechanism for guiding the transmission member along the circulation path. The plurality of transfer units are arranged in the vertical direction along the lifting section, Multiple of the holders are connected to the transmission member so as to be arranged at regular intervals along the circulation path. The distance between two of the transfer portions adjacent in the vertical direction is defined as the first interval, and the distance between the multiple holders is defined as the second interval. The second interval is set to 1/M of the first interval (where M is an integer greater than or equal to 1), A lifting and lowering conveying device in which the total length of the transmission member is set to (2N + L/M) times the first interval (where N is an integer of 1 or more, and L is an integer of 1 or more).
  2. The circulation device includes guide rails that guide the movement of the plurality of holders along the circulation path, Each of the plurality of holders is equipped with a guided mechanism that is guided by the guide rail, The surface encompassing the entire circulation path is defined as the circulation surface, the direction perpendicular to the circulation surface is defined as the axial direction, the direction along the circulation surface that is perpendicular to the circulation path at each position on the circulation path is defined as the radial direction, one side in the axial direction is defined as the axial first side, the other side in the axial direction is defined as the axial second side, one side in the radial direction is defined as the radial first side, and the other side in the radial direction is defined as the radial second side. The guide rail comprises a first axial guide surface extending along the circulation path and facing the first axial direction, a second axial guide surface extending parallel to the first axial guide surface along the circulation path and facing the second axial direction, a first radial guide surface extending along the circulation path and facing the first radial direction, and a second radial guide surface extending parallel to the first radial guide surface along the circulation path and facing the second radial direction. The lifting and conveying device according to claim 1, wherein the guided mechanism comprises: a first axial guide wheel that contacts and rolls against the first axial guide surface from the first axial side; a second axial guide wheel that contacts and rolls against the second axial guide surface from the second axial side; a first radial guide wheel that contacts and rolls against the first radial guide surface from the first radial side; a second radial guide wheel that contacts and rolls against the second radial guide surface from the second radial side; and a guide wheel holding mechanism that holds the first axial guide wheel, the second axial guide wheel, the first radial guide wheel, and the second radial guide wheel so as to be able to roll.
  3. The direction along the aforementioned circulation path is defined as the extension direction, A pair of the first axial guide wheels are arranged spaced apart from each other in the extending direction, A pair of the aforementioned second axial guide wheels are arranged spaced apart from each other in the extending direction. A pair of the first radial guide rings are arranged spaced apart from each other in the extending direction, A pair of the aforementioned second radial guide rings are arranged spaced apart from each other in the extending direction, The retainer is positioned with respect to the guide rail, with an offset in the axial direction. The lifting and conveying device according to claim 2, wherein the spacing of a pair of first axial guide wheels in the extending direction and the spacing of a pair of second axial guide wheels in the extending direction are greater than the larger of the spacing of a pair of first radial guide wheels in the extending direction and the spacing of a pair of second radial guide wheels in the extending direction.
  4. The lifting and lowering conveying device according to claim 2, wherein a floating mechanism is provided at the connection between the transmission member and the holder, allowing for variations in the axial and radial positional relationship between the transmission member and the holder.
  5. The guide mechanism comprises a plurality of rotating bodies, each around which the transmission member is wound. The direction along the rotation axis of the rotating body is defined as the rotation axis direction, and the direction perpendicular to the rotation axis is defined as the rotation radial direction. A fall restriction mechanism is provided to restrict the fall of the transmission member in relation to the target rotating body, which is the uppermost of the multiple rotating bodies. The lifting and conveying device according to any one of claims 1 to 4, wherein the fall restriction mechanism comprises an extension portion extending from the target rotating body in the axial direction of the rotating body along the rotation axis of the target rotating body, and a restricting portion extending outward from the extension portion in the radial direction of the rotating body.
  6. The object to be transported is a transport vehicle, The transfer section includes a passage surface on which the transport vehicle travels, The holder has a mounting surface on which a forward transport vehicle that moves between itself and the passage surface is placed, The first interval is the vertical distance between the passage surfaces of two vertically adjacent transfer portions, The lifting and conveying device according to any one of claims 1 to 4, wherein the second interval is the vertical distance between the mounting surfaces of two of the holders that are adjacent to each other in the vertical direction in the lifting and lowering section.

Description

This invention relates to a lifting and lowering conveying device comprising: a plurality of holders for holding objects to be conveyed; a circulation device for circulating the plurality of holders along a circulation path in the vertical direction; and a plurality of transfer units for transferring objects between the holders. An example of such a lifting and transporting device is disclosed in Japanese Patent Publication No. 2007-217134 (Patent Document 1). In the following description of this background art, the reference numerals and names in Patent Document 1 will be referenced in parentheses. The lifting and lowering conveying device (vertical conveyor 1) described in Patent Document 1 comprises a plurality of holders (conveyor tables 20) for holding the object to be conveyed (conveyed object), a circulation device (endless bodies 31, 32, 33), and a transfer section (exit port, input port). The circulation device (endless bodies 31, 32, 33) circulates the plurality of holders (conveyor tables 20). The transfer section (input machine, output machine) directly approaches the holders (conveyor tables 20) and transfers the object to be conveyed (conveyed object) between the holders (conveyor bodies 20) and the transfer section. Japanese Patent Publication No. 2007-217134 Perspective view of the lifting and lowering conveying device of the embodimentFront view of the lifting and conveying device of the embodimentDiagram illustrating the first and second intervals.Figure 2 shows the IV-IV cross-sectional view of the lifting and conveying device.Figure 1 illustrates the guided mechanism shown in Figure 1.Figure 5 shows the VI-VI cross-sectional view.Figure 4 illustrates the movement of the guided mechanism.Enlarged front view of the fall protection mechanism shown in Figure 1. [Overview of the lifting and conveying device] As shown in Figure 1, the lifting and lowering conveying device 100 moves the object to be conveyed, which is the article to be conveyed, up and down. By using the lifting and lowering conveying device 100, even in conveying equipment that has multiple floors with different vertical positions, the object to be conveyed 10 can be moved back and forth between different floors. The object to be conveyed 10 is, for example, an article such as a product, a container for holding the product, or a part for manufacturing a product. The lifting and transporting device 100 of this embodiment will be described with reference to the drawings. As shown in Figure 1, the lifting and transporting device 100 comprises a plurality of holders 1 for holding the object to be transported 10, a circulation device 2 for circulating the plurality of holders 1, and a plurality of transfer units 3 where the object to be transported 10 is transferred between the holders 1. Each of the transfer units 3 is positioned at a different location in the vertical direction. The circulation device 2 raises and lowers a holder 1 that has received the object to be transported 10 at one transfer unit 3 to a position adjacent to another transfer unit 3. Then, the holder 1 transfers the object to be transported 10 to the adjacent transfer unit 3, thereby moving the object to be transported 10 to a transfer unit 3 at a different level. Multiple holders 1 hold the objects to be transported 10 received from the transfer unit 3. The objects to be transported 10 are held by the holders 1 by being positioned at predetermined locations on the holders 1 after being transferred from the transfer unit 3. In this embodiment, the objects to be transported 10 are transport vehicles 101 capable of traveling on a running surface. The running surface includes a surface that supports the transport vehicle 101 from below. Examples of running surfaces include floors and the upper surfaces of rails. The transport vehicle 101 moves to a position where it is held by the holders 1 by traveling on the running surface. This allows the transport vehicle 101 to be held by the holders 1. In the example shown in Figure 1, the transport vehicle 101 is held by the holders 1 by moving from the upper part of the transfer unit 3 to the upper part of the holders 1. As shown in Figure 2, multiple holders 1 circulate along a circulation path CR, which has vertically extending lifting sections, via a circulation device 2. The circulation path CR is a closed path that can be repeatedly traversed. As the circulation device 2 circulates the multiple holders 1 along the circulation path CR, the multiple holders 1 repeatedly move vertically along the lifting sections. In addition to the lifting sections, the circulation path CR includes curved sections. The circulation path CR shown in Figure 2 is formed by a pair of lifting sections spaced horizontally, and a pair of curved sections that connect the upper and lower ends of the pair of lifting sections in a curved manner. Furthermore, the circulation path CR illustrated in Figure 2 is elongated in the vertical direction. I