JPH0232094Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a rotary rack device in which trays are connected in an endless manner and supported movably on a horizontal circulation path, and the loading and unloading of loads to and from the trays is carried out for loading and unloading. This is intended to be facilitated by using a transversely movable cargo transfer means equipped with a drive roller.

Hereinafter, one embodiment of the present invention will be described based on the attached illustrative drawings. In FIGS. An idling gear wheel 2 and a drive gear wheel 4 driven by a motor 3 are respectively pivotally supported at both ends in the length direction, and an endless chain 5 is suspended between the gear wheels 2 and 4 at both ends. Trays 6 are endlessly connected to each other at regular intervals by the endless chain 5.
is supported by an inner support rail 7 and an outer support rail 8 so as to be able to circulate through the horizontal circulation path 1.

Therefore, the trays 6 in each stage can be rotated in any direction by driving the endless chain 5 by the motor 3, and can be moved to the home position HP set at an appropriate position in advance. By positioning the tray 6, it is possible to carry out loading and unloading operations to and from the tray 6.

The supporting outer rail 8 is arranged in an endless manner including the U-turn portions at both ends of the horizontal circulation path 1, but the supporting inner rail 7 is arranged only in the straight path portion. Therefore, when the tray 6 rotates around the U-turn portions at both ends, it is configured to be supported on the inside by the gear wheels 2 and 4.

As shown in FIGS. 3 and 4, the tray 6
is a rectangular saucer shaped with an open front end located outside the horizontal circulation path 1, and is used for loading and unloading the load by the load transfer means 26 from the front edge of the bottom plate 9 at the open front end. Drive roller 2
A cutout recess 28 into which the 7 enters is provided, and on the front edge of the bottom plate 9 located on both sides of this recess 28,
A protrusion 29 for preventing loads from coming out is provided which is lower than the drive roller 27 for pulling in and sending out loads.

The open end portions 10a of the left and right wall plates 10 of the tray 6 are separated from the bottom plate 9 and are inclined outwardly. Reference numeral 11 denotes a supporting outer roller, which is attached to the inner end bent portion 12a over the entire width of the reinforcing plate 12 fixed to the lower side of the tray bottom plate 9 so as to surround the recessed portion 28, and at the center position in the width direction of the tray 6. It is pivotally supported by a horizontal shaft and rolls on the supporting outer rail 8. Reference numeral 13 denotes a pair of supporting inner rollers, which are pivotally supported by horizontal shafts at two symmetrical locations in the width direction of the tray 6 on the outer lower end of a bearing plate 14 fixed to the rear end 6a of the tray 6. It rolls on the support inner rail 7.

The endless chain 5 has both ends pivotally connected to the upper horizontal bent portion 14a of the bearing plate 14 and the ends of the upper horizontal bent portions 14a of the bearing plates of both adjacent trays 6 by a vertical shaft 15. A portion of the tray 6 is composed of an endless chain 5 and a link 5a.
It also serves as a link. a pair of vertical shafts 15 corresponding to link pins of the endless chain 5;
A guide roller 16 for regulating the tray movement direction is pivotally mounted below the upper horizontal bent portion 14a of the bearing plate. This pair of guide rollers 16
are located directly above the supporting inner roller 13 and close to each other. 17 is the bearing plate 1
4 is a detection plate (magnetic plate) formed by vertically bending a part thereof, and is detected by a non-contact detector.

18 is a groove-shaped guide rail for regulating the direction of tray movement into which the guide roller 16 is loosely fitted;
Mounting part 2 with mounting dovetail grooves 19 on the upper and lower two levels
0, and is integrally formed with the supporting inner rail 7 via the support inner rail 7. Reference numeral 21 denotes an inner support, to which the supporting inner rail 7 and the guide rail 18 for regulating the direction of tray movement are mounted by nuts and bolts that are non-rotatably fitted into the mounting dovetail grooves 19 of the mounting portion 20. ing. Reference numeral 22 denotes an outer support column to which a bracket 23 for fixedly supporting the supporting outer rail 8 is attached. Instead of this bracket 23, the rail 8 (or both the inner and outer rails 7, 8) may be fixedly supported on a beam 24 installed between the inner and outer supports 21, 22.

The cargo delivery means 26 is located at the home position.
A drive conveyor roller 25 that supports the entire width of the load and conveys it in the direction of the arrow 30 is attached to a frame 31 disposed in the HP and supported so as to be able to move laterally in the direction shown by the arrow 30. The loading/unloading drive roller 27 is pivotally supported within a narrow portion 31a formed at the tip.

The load prevention protrusion 29 is formed by bending and protruding the front edges of both left and right ends of the reinforcing plate 12 so as to have a sawtooth cross section.
Both left and right end portions 12b of the tray are bent so as to contact the bent end portions 10a of the tray side wall plates 10 from the outside and fixed to each other, and the bent end portions 10a are joined to the tray bottom plate 9 and reinforced. There is.

The rotary rack device configured as described above rotates the endless chain 5 through the drive gear 4 by the corresponding motor 3 to rotate the endless connecting tray 6 in the horizontal circulation path 1 of any stage. , rotates in any direction on the horizontal circulation path 1, calls a specific tray 6 to the home position HP, and mechanically loads and unloads a load (container, etc.) 32 onto the called tray 6. I can do it. That is, when transferring the load 32 onto the tray 6, the drive roller 27 for pulling in and sending out the load of the load transfer means 26 is moved into the recessed part 28 of the tray 6 which is stopped at a predetermined position. By driving the rollers 25 and 27 in the load delivery direction, the load 32 supported on the drive roller 25 can be sent onto the tray 6. At this time, since the drive roller 27 is higher than the protrusion 29 on the tray side for preventing the load from pushing out, the load 32 will not collide with the protrusion 29 . When the end of the load 32 comes into contact with the rear end surface of the tray 6, the drive roller 2
By retracting the load transfer means 26 while keeping the wheels 5 and 27 rotating, the front end of the load 32 is lowered from above the drive roller 27 to a position inside the load prevention protrusion 29 on the tray 6.

When unloading the load 32 on the tray 6, with the drive rollers 25 and 27 of the load transfer means 26 rotated in the load unloading direction, the drive roller 27 is advanced into the recess 28 of the tray 6 as described above. As a result, the front end of the load 32 is scooped up onto the drive roller 27, and the drive roller 27 and the drive roller 25 cause the load 32 on the tray 6 to go over the load prevention protrusion 29. Drive roller 25
It is pulled out to the specified position above.

There is one tray 6 on the outside that rotates on the horizontal circulation path 1 (multiple trays may be provided in the tray movement direction).
The tray is supported by the supporting outer rail 8 via the supporting outer rollers 11, and the inner side is supported by the supporting inner rail 7 via two supporting inner rollers 13 in the tray movement direction. The groove-shaped guide rail 1 is held in a horizontal state and further includes two movement direction regulating guide rollers 16 in the tray movement direction.
By loosely fitting into and moving within the 8, it is prevented from meandering left and right with respect to the direction of movement, and it moves straight in a constant direction between the U-turn portions at both ends.

The rotary rack device of the present invention can be implemented as described above, and the tray has its front end located outside the horizontal circulation path opened, and the front end of the tray at the open front end. From the edge,
A notched recess into which the load-drawing and sending-out drive roller of the load-handling means enters is provided, and a protrusion for preventing the load from pushing out, which is lower than the load-pulling and sending-out drive roller, is provided on the front edge of the bottom plate located on both sides of this recess. When the tray rotates through the U-turn portions at both ends of the horizontal circulation path,
The load placed on the tray is prevented from pushing outward from the front end of the tray due to centrifugal force, and the tray can be rotated safely. Moreover, it becomes easy to increase the rotating speed of the tray and increase efficiency. Moreover, loading and unloading of loads onto and from the tray can be carried out mechanically without being affected by the existence of the protrusion for preventing loads from pushing out, by using a load transfer means that can move laterally and is equipped with drive rollers for loading and unloading the load. It can be done efficiently.

Note that it is possible to take measures to improve the sliding of the load 32 on the bottom plate 9 of the tray 6. For example, as shown by imaginary lines in FIGS. 3 and 4, a plurality of rollers 33 that rotate when the load 32 comes into contact with the tray bottom plate 9 can be pivotally supported at the location where the load 32 comes into sliding contact. .

[Brief explanation of drawings]

FIG. 1 is a schematic plan view with the front half as a cross-sectional plan view, FIG. 2 is a front view, FIG. 3 is a longitudinal sectional side view of the main part, and FIG. 4 is a plan view of the main part. 1...Horizontal circulation path, 2...Idle gear ring, 3...
Drive motor, 4... Drive gear, 5... Endless chain for drive, 6... Tray, 7... Inner rail for support, 8... Outer rail for support, 9... Tray bottom plate, 11... Support outer roller for use, 12... reinforcing plate, 13... inner roller for support, 16... guide roller for regulating movement direction, 18... guide rail for regulating movement direction, 26... cargo delivery means, 27...
Drive roller for unloading and feeding loads, 28... Recessed portion, 29... Projection for preventing loads from coming out, 32...
Cargo (container, etc.).

Claims (1)

[Scope of utility model registration request] A rotary rack device in which trays are connected in an endless manner and supported movably on a horizontal circulation path, and the tray has a front end located outside the horizontal circulation path open, and a front end located at the outside of the horizontal circulation path. A cut-out recessed portion into which the load-drawing/feeding drive roller of the load transfer means enters is provided from the front edge of the bottom plate of the tray, and the load-feeding/feeding drive roller is provided at the front edge of the bottom plate located on both sides of the recessed portion. A rotating rack device that is provided with a protrusion that is lower than the roller to prevent loads from coming out.