JPH043707A - Conveyor device - Google Patents

Abstract

PURPOSE:To miniaturize the device, in a roller conveyor device arranged on the floor of a rack equipment, by loose-fittedly journaling a cylindrical part having a driven part at its end part and fitted with a flexible body, in the vicinity of the one side of a pair of right and left supporting parts which have been provided to a frame, so that the flexible body can be brought into contact with or can be separated from the inner surface of the roller by expanding or contracting it with a fluid. CONSTITUTION:A supporting shaft 27 is supported by a case member 28 on the side plate 15 side out of right and left side plates 15, 16 which have been erected on a conveyor frame 14, and a cylindrical member 35 is externally fitted on the supporting shaft so as to be freely turnable. At the end part of this cylindrical member 35, a sprocket 36 is provided so as to be interlocked with a chain 56 being always drived. And, a rubber tube 40 is fitted to the cylindrical member 35, and it is freely expanded or contracted by supplying or discharging a fluid via a fluid supply/discharge passage 43. In this constitution, interlock and separation of the roller body and the supporting shaft 27 can be enabled by the expansion or contraction of the rubber tube.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF THE INVENTION The present invention relates to a conveyor device that is incorporated, for example, in shelving equipment or installed on the floor.

2. Description of the Related Art Conventionally, as a conveyor device using drive rollers, a structure as shown in, for example, Japanese Utility Model Application Publication No. 1-121008 has been provided. In this conventional structure, a large number of rollers are provided on the main body frame so as to freely rotate to form a conveyance path, and a support frame is provided on the main body frame side. This support frame is provided with a support shaft along the roller axis, and on this support shaft, a transmission roller that can freely come into contact with the lower part of the outer periphery of an adjacent idle roller and a passive sprocket are integrally rotated. At the same time, a chino supported and guided on the support frame side is engaged with the sprocket. A cylinder device for moving the support shaft up and down is provided between the support frame and the support shaft.

According to this conventional method, a transmission roller is rotated by a chino via a sprocket, and the rotation of this transmission roller is
The information is transmitted to the idle rollers that are in contact with each other, and the conveyed object is conveyed on the conveyance path by the rotation of the idle roller group. Then, by controlling supply and discharge to and from the cylinder device and moving the support shaft up and down, it is possible to switch between a drive mode in which the transmission roller is in contact with the idle roller and a non-drive mode in which the transmission roller is separated from the idle roller. The conveying force is applied to the conveyed objects to control the conveyed objects so that they do not collide with each other.

Problems to be Solved by the Invention According to the above-mentioned conventional type, the transmission roller and the like are disposed below the idling roller, making the entire device bulky and large.

An object of the present invention is to provide a conveyor device that can be made compact as a whole.

Means for Solving the Problems In order to achieve the above object, the conveyor device of the present invention provides a frame with a pair of left and right support portions, a left and right support shaft is provided on the frame side near one of the support portions, and A cylindrical member is fitted around the support shaft so as to be freely rotatable and has a passive portion at the end, and a flexible body that can expand and contract is attached to this cylindrical member, and the flexible body is inserted from the support shaft through the cylindrical member. A fluid supply/drainage path that opens into the body is provided, and the other support portion is configured with a rolling member.

Effects According to the configuration of the present invention described above, the flexible body can be rotated integrally by applying rotational force to the passive part. In this state, by supplying fluid into the flexible body through the fluid supply/drainage path and inflating the flexible body with the pressure, the flexible body can be brought into contact (pressure contact) with the lower surface of the object to be transported. It is possible to transport an object supported by the flexible body on one side and the rolling part on the other side. Furthermore, when the pressure inside the flexible body is released through the fluid supply/drainage path, the flexible body contracts and separates from the bottom surface of the conveyed object, and the rotational force is no longer transmitted to the conveyed object. The lower side surface is supported by one of the supports, and conveyance is thereby stopped.

Embodiment An embodiment of the present invention in which a conveyor device is incorporated into shelving equipment will be described below with reference to FIGS. 1 to 5.

In FIGS. 3 and 4, 1 is a shelf frame, which includes a plurality of left and right front struts 2, a plurality of right and left rear struts 3, a front cross member 4 connecting the front struts 2, and a rear strut 3. Rear cross member 5 connecting
It is composed of a front and rear member 6 that connects the front strut 2 and the rear strut 3, and the like. Supports 2 and 3 of this shelf frame 1 and each material 4 to 6
A conveyor device 10 is disposed horizontally in a plurality of divided storage spaces 7 formed between the storage spaces 7 in the horizontal direction and in a plurality of stages in the vertical direction, with the conveyance direction 13 thereof as the depth direction. That is, as shown in FIGS. 1 to 3, the conveyor frame 14 in the conveyor device 10 includes a pair of left and right side plates 15.1.
6, an upper plate 17.18 bent outward from the upper ends of both side plates 15.16, and a bottom plate 19 connecting the lower ends of both side plates 15.16, forming a U-shaped cross section.

A bolt hole 22 for fixing a guide rail (described later) is formed in the lower part of the one side plate 15. The conveyor frame 14 formed in this manner is detachably fixed to the shelf frame 1. For this purpose, a bolt hole 23 is formed in the bottom plate 19, and a nut 24 that matches the bolt hole 23 is inserted into the bottom plate 1 within the conveyor frame 14.
A through hole 2 fixed on the cross member 9 and formed in the cross member 4°5
A bolt 26 passed through the bolt 5 from below can be fitted into the nut 24 through the bolt hole 23.

The case member 28 that holds the support shaft 27 includes a pair of left and right side plates 28a and 28b, a pair of front and rear cover plates 28c and 28d that connect these side plates 28a and 28b, and a lower end of the other side plate 28b that is connected to one side. The installed mounting is board 28
Holding holes 29 and 30 for holding the support shaft 27 horizontally are formed in both side plates 28a and 28b.

Furthermore, a mounting hole 31 is formed in the plate 28e, and a nut 32 that matches the hole 31 is used for mounting.
However, the mounting is fixed on the plate 28e.

The case member 28 is constructed by attaching one side plate 28a to the side plate 15 of the conveyor frame 14 from the inside, and using the bolt 26 or another bolt to tighten the nut 3.
2, it is fixed to the conveyor frame 14 with the support shaft 27 in the left-right direction. A cylindrical member 35 is fitted around the support shaft 27 through a bearing 33 and a bushing 34 so as to freely rotate, and a sprocket 36, which is an example of a passive part, is integrally attached to one outer end of the cylindrical member 35. It is set in. A rubber tube 40, which is an example of a flexible body that can be expanded and contracted, is fitted onto the cylindrical member 35, and the rubber tube 40 is connected to the cylindrical member 3 through a pair of bands 41 and 42.
It is fixed at 5. The rubber tube 40 has a band 41
．． A pair of left and right cylindrical portions 40a on which 42 acts, a flange portion 40b that is connected outwardly from the inner end of these cylindrical portions 40a, and an elastic portion 40c that is connected between the outer ends of these flange portions 40b. The elastic portion 40c elastically urges the abutting portion 40d away from the inner surface 37a. Note that the rubber tube 40 is made of a material that produces a large frictional force at the contact portion 40d. The rubber tube 40 is passed from the support shaft 27 through the cylinder member 35.
The fluid supply/discharge passage 43 that opens inward is formed from the other end to the middle on the axis of the support shaft 27, and is always in communication with a shaft passage 43a that is open in the radial direction. An annular flow path 43b formed on the inner surface of the cylindrical member 35 to pass through, a cylindrical flow path 43c formed in the cylindrical member 35 to communicate this annular flow path 43b into the rubber tube 40, and the shaft flow path 4.
It is formed from a piping flow path 43d formed in a joint 44 to communicate with the other end of the pipe 3a. 45° 46 indicates a sealing member, and 47 indicates a collar.

A guide rail 50 is disposed along the entire length at one corner of the bottom of the conveyor frame 14, and this guide rail 50 has a dovetail groove portion 51 on the outside and a pair of upper and lower guide portions 52, 53 on the inside. has.

A plate-shaped nut body 54 is slidably fitted into the dovetail groove 51, and the bolt 5 passed through the bolt hole 22 from the outside.
5 to the nut body 54 and tightening, the guide rail 50 can be fixed to the conveyor frame 14.

The chino 56, which is an example of a driving body, is connected to the sprocket 3.
The guide portion 5 has an upper path that constantly engages with the upper guide portion 5 from below.
2, the lower path is supported and guided by the lower guide portion 53. As shown in FIG. 5, the chino 56 is stretched between a driving sprocket 57 and a driven sprocket 58 via a guide sprocket 59, etc., and the driving sprocket 57 is operatively connected to a motor 60. . 61
indicates a transport route, and 62 is a load, which is handled via a pallet 63.

As shown in FIGS. 1 and 2, one upper plate 17 forms one support part, and the other side plate 16 is provided with a rolling member 70 forming the other support part. .

That is, the rolling member 70 is a roller type consisting of a shaft portion 71 and a rolling portion 73 externally fitted onto the shaft portion 71 via a bearing 72, and has a threaded portion 74 integral with the shaft portion 71.
is fixed to the conveyor frame 14 by passing it from the inside through a through hole 75 formed in the upper part of the side plate 16 and then fitting it with a nut 76.

As shown in FIG. 5, for example, the conveyor device 10 described above has six rollers arranged in a predetermined arrangement (six rollers) in one group in the conveying direction 13, and in the embodiment there are eight groups A, B, and C. ,D,E.

F, G, and H are arranged, and the rubber tubes 40 are expandable and deflated for each group A to H. That is, each group is provided with a supply/discharge hose 80 connected in series with the piping channel 43d, and these supply/discharge hoses 80 are connected to a common supply hose 83 from a supply device 82 via a solenoid valve 81, respectively. It can be shut off at will. On the downstream side of each group A to H, a photoelectronic switch 84, which is an example of a stock detector, is provided. Here, for two groups adjacent in the transport direction, when the photoelectronic switch 84 of the upstream group is detected and the photoelectronic switch 84 of the downstream group is not detected, the rubber tubes 40 of both groups
are configured to simultaneously expand (communicate the supply hose 83 and supply/discharge hose 80). When the photoelectronic switches 84 of both groups are simultaneously in the detecting operation or in the non-detecting operation at the same time, the rubber tubes 40 in both groups are configured to simultaneously perform the contraction operation (cutting off the supply hose 83 and the supply/discharge hose 80). For this purpose, each solenoid valve 81 is integrated into a respective control unit 85. Also, the lowest group A
The structure is such that the rubber tube 40 does not contract when the optoelectronic switch 84 detects the movement. 86 indicates a stopper.

Next, the storage and conveyance work of the load 62 in the above embodiment will be explained.

The imaginary line in FIG. 1 and the solid line in FIG. 2 indicate that the solenoid valve 81 is switched to connect the supply hose 83 to the supply/discharge hose 80, and the rubber tube 40 is moved by the pressure of the air (fluid) supplied through the fluid supply/discharge path 43. The contact portion 40d, which is inflated and moves outward against the elastic portion 40c, is brought into contact (pressure contact) with the lower surface of one side of the pallet 63, and this negative side is lifted from the upper plate 17. At this time, the motor 60
Therefore, the chino 56 is constantly driven, and therefore the cylindrical member 35 rotates around the support shaft 27 via the sprocket 36 that is engaged with the chino 56. Furthermore, the rubber tube 4G, which rotates integrally with the cylindrical member 35, is also forcibly rotated integrally. As a result, the pallet 63 on the conveyance path 61 supported between the rubber tubes 40 and the rolling portion 73 is conveyed on this conveyance path 61 while receiving the conveyance force due to the forced rotation of the group of rubber tubes 40. will be done. At this time, the non-driven rolling member 70 group performs follow-up rotation.

Further, when the solenoid valve 81 is switched to cut off the supply/discharge hose 80 from the supply hose 83, the pressure inside the rubber tube 40 is released, and the elastic portion 40c is The force causes the rubber tube 40 to contract so that the contact portion 40d moves inward, and the pallet 63
It is spaced from the lower surface of one side.

Therefore, one side of the pallet 63 is lowered and is stopped by the upper plate 17, thereby braking and stopping the conveyance.

The conveyor device 10 basically conveys the pallet 48 (load 47) as described above, but in reality, conveyance control is performed based on whether the photoelectronic switch 84 detects or does not detect the pallet 63. It will be done.

That is, when the transport path 61 is empty, the pallet 63 is placed on the group H at the upstream end by the forklift truck 8.
When the photoelectronic switch 84 of group H is detected, the photoelectronic switch 84 of group G is not detected. Department,
Thus, the pallet 63 is transported from group H to group G. When the pallet 63 enters group G, the optoelectronic switch 84 of this group G operates to detect, but when the pallet 63 enters group F
Since this is not detected, the rubber tubes 40 of groups G and F come into contact and transport the pallet 63 from group G to group F. The pallets 63 thus conveyed sequentially to the downstream side come into contact with the stopper 86, stop, and are stored in group A. When this pallet 63 is detected by the photoelectronic switch 84, the rubber tubes 40 of group A are moved to separate and open. 2
The third pallet 63 is also transported in the same way, and the group A
are stored in group B in contact with pallet 63. At this time, group B is detected and moved, but since group A is also detected, the rubber tubes 40 of group B are also moved apart. In such an operation, it is assumed that, for example, the pallets 63 are stored in all groups A to H, and all the rubber tubes 40 are moved to the M open position. When the pallet 63 of group A is taken out by the forklift vehicle 8 in this state, the photoelectronic switch 84 of group A will not be detected, and the rubber tubes 40 of groups A and B will come into contact with each other. 6
3 to group A. Then, since the photoelectronic switch 84 of group B becomes non-detecting, group B,
The rubber tube 40 of group C comes into contact with the pallet 63 of group C, thereby conveying the pallet 63 of group C to group B. By repeating such actions, the pallets 63 can be sequentially fed.

In the above embodiment, the passive part is formed by the sprocket 36 and is driven by the chino 56, but this is also possible by using a round belt, a combination of a drive shaft and a trapezoidal roller, or a drive shaft and bevel gear. It may also be a combination of the following.

In the above example, a conveyor system is used! 10 is incorporated into the shelf frame 1, but this may also be a floor conveyor type installed on the floor.

Further, in the above embodiment, a roller type was shown as the rolling member 70, but in this case, the cylindrical member 35 and the like are provided symmetrically, and the rolling member 70 is placed on the other side. Alternatively, the pallet 63 may be guided in a rolling manner using a rubber tube.

FIG. 6 shows another embodiment of the present invention, in which one support section is formed by a group of idling rollers 90, and the pallet 63 is moved by the idling rollers 90 by expansion of the rubber tube 40.
It is lifted from the rubber tube 40 and placed on the idle roller 90 by contraction of the rubber tube 40.

Effects of the Invention According to the present invention configured as described above, rotational force is applied to the passive part,
While the flexible body is rotated integrally through the cylindrical member, the inside of the flexible body is pressurized or released through the fluid supply/drainage path, and the flexible body is expanded and contracted to make contact with the lower surface of the conveyed object. By touching or separating them, it is possible to transport an object supported by this flexible body and the other rolling part, or by supporting the Ichinoseki lower surface of the object by one of the supporting parts. transport can be stopped. By attaching the flexible body that discards the transmission of rotational force to the cylindrical member that is integrated with the passive part in this way, the entire structure can be made low and compact.

[Brief explanation of the drawing]

1 to 5 show one embodiment of the present invention, in which FIG. 1 is a partially cutaway front view, FIG. 2 is a partially cutaway side view, and FIG. 3 is a front view of the shelving equipment. 4 is a side view of the same, FIG. 5 is a schematic side view showing a state of use, and FIG. 6 is a partially cutaway side view showing another embodiment. DESCRIPTION OF SYMBOLS 1... Shelf frame, 10... Conveyor device, 14... Conveyor frame, 17... Top plate (support part), 18...
・Top plate, 27... Support shaft, 28... Case member, 35
... Cylinder member, 36 ... Sprocket (passive part), 4
0... Rubber tube (flexible body), 41, 42... Band, 43... Fluid supply/discharge path, 44... Joint,
50...-guide rail, 56... Che 2 (driver)
, 60...Motor, 61...Transport route, 62...
Load, 63... Pallet, 70... Rolling member (supporting part), 73... Rolling part, 84... Photoelectronic switch (stock presence detector), 85... Control unit, 90... ...Idling roller (support part). Agent Yoshihiro Morimoto

Claims (1)

[Claims] 1. A pair of left and right support parts are provided on the frame, a support shaft in the left and right direction is provided on the frame side near one of the support parts, the support shaft is fitted onto the support shaft so as to be freely rotatable, and the end part has a passive part. A cylindrical member is provided, a flexible body that can be expanded and contracted is attached to the cylindrical member, a fluid supply and drainage path is provided that opens from the support shaft through the cylindrical member and into the flexible body, and the other support portion is connected to the rolling member. A conveyor device characterized by comprising: