JP6848431B2 - Transport device - Google Patents

Description

The present invention relates to a transport device for a box trolley capable of accommodating luggage and moving on a floor surface while rolling wheels.

At distribution bases such as luggage distribution centers, workers may push the box trolley by hand to move it, but when moving the box trolley far away, a conveyor or other transport device may be used. ..

Patent Document 1 describes a technique for transporting a box trolley by a slat conveyor and retracting the box trolley to the floor surface in the middle of the slat conveyor by making the floor surface adjacent to the transport path flush with the upper surface of the slat. Has been described.

Japanese Unexamined Patent Publication No. 2013-237535

However, when a conveyor or the like exists on the road surface of the transport route, it is often impossible for a person or a trolley to cross the transport route. In such a case, when moving a person or a dolly from one side of the transport route to the other side, it is necessary to bypass the long transport route, which requires a great deal of labor.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a transport device capable of carrying in and out a box trolley in the middle of a transport route and crossing a box trolley, a person, or the like. There is.

In order to achieve the above object, a plurality of transport devices according to the present invention are arranged side by side along the first transport path on each side of the first transport path, and both sides of the box trolley passing through the first transport path. It is a transport device that transports a plurality of box carts at the same time while rolling wheels on the road surface of the first transport path by rotating fixed rollers that come into contact with each surface, and each of the sides of the first transport path. The movable rollers are urged so as to come into contact with both side surfaces of a box carriage that passes between a plurality of movable rollers arranged in a facing manner connected to the fixed rollers and the movable rollers arranged in a facing manner. The urging means, the drive source that rotates the movable roller and generates a driving force for transporting the box trolley that abuts on the movable roller, and the drive source that is arranged at the intermediate point of the movable roller that is arranged so as to face each other, are arranged in the vertical direction. It is characterized by including a swivel means for integrally swirling a plurality of the movable rollers around an extending swivel shaft.

According to this, it is possible to form an entry / exit area, which is an area where a box trolley or the like can be taken in / out in the middle of the transport path, and a person or a box trolley crosses the transport path by passing through the entry / exit area. It becomes possible to do.

Further, a widening means for increasing the distance of the movable rollers arranged so as to face each other may be provided.

According to this, it is possible to form an entry / exit area wider than the first transport path, and it is possible to allow people, box carts, etc. to enter / exit the entry / exit area and to cross it without contacting the movable roller. Become.

In addition, interference prevention means for increasing the distance between the fixed rollers arranged adjacent to each other and the movable rollers may be provided.

According to this, the box trolley is normally transported along the first transport path by using the movable roller, and when forming the entry / exit region, the opposed movable roller is swiveled without interfering with the fixed roller. It becomes possible.

Further, a swivel floor that swivels together with the movable roller with the box trolley mounted may be provided.

According to this, even when the wheels of the box trolley do not turn around the vertical axis, it is possible to rotate the movable roller together with the box trolley without giving a load to the box trolley.

When the movable roller is swiveled in a direction intersecting the first transport path, it appears on one of the sides of the first transport path at the position where the movable roller is arranged, and abuts on the box carriage to contact the box carriage. A stopper for determining the position may be provided.

According to this, the box trolley can be surely arranged in the first transport path in the middle of the first transport path.

A fixed roller forming a second transport path that is flexibly connected to the first transport path is further provided, and the movable roller may be arranged at a portion where the first transport path and the second transport path intersect.

According to this, for example, the box trolley can be transported from the first transport path arranged in a bent state at a right angle to the second transport path, or from the second transport path to the first transport path, and is curved. It is possible to suppress the dead space generated by forming the transport path and bending it without forming a transport path.

According to the present invention, an entry / exit region can be formed in the middle of the transport path, and the box trolley can be taken in and out in the middle of the transport path.

FIG. 1 is a plan view showing the transport device together with the box trolley. FIG. 2 is a perspective view showing the transport device together with the box trolley. FIG. 3 is a side view showing the fixed drive unit by cutting out a part of the housing. FIG. 4 is a front view showing the fixed drive unit with a part of the housing cut out. FIG. 5 is a side view showing a part of the swivel unit cut out. FIG. 6 is a plan view showing a first arrangement state of the movable roller. FIG. 7 is a plan view showing a second arrangement state of the movable roller. FIG. 8 is a plan view showing a third arrangement state of the movable roller. FIG. 9 is a plan view showing a fourth arrangement state of the movable roller. FIG. 10 is a plan view showing a state in which the fixed drive unit is arranged at the interference prevention position. FIG. 11 is a plan view showing another aspect of the transport device together with the box trolley. FIG. 12 is a perspective view showing another aspect of the transport device together with the box trolley.

Next, an embodiment of the transport device according to the present invention will be described with reference to the drawings. The following embodiments are merely examples of the transport device according to the present invention. Therefore, the present invention is defined by the wording of the claims with reference to the following embodiments, and is not limited to the following embodiments. Therefore, among the components in the following embodiments, the components not described in the independent claims indicating the highest level concept of the present invention are not necessarily necessary for achieving the object of the present invention, but more. Described as constituting a preferred form.

In addition, the drawings are schematic views in which emphasis, omission, and ratio are adjusted as appropriate to show the invention of the present application, and may differ from the actual shape, positional relationship, and ratio.

FIG. 1 is a plan view showing the transport device together with the box trolley.

FIG. 2 is a perspective view showing the transport device together with the box trolley.

As shown in these figures, a plurality of them are arranged side by side along the first transport path 101 on each side of the first transport path 101, and hit both side surfaces of the box trolley 200 passing through the first transport path 101. A device capable of simultaneously transporting a plurality of box carts 200 while rolling wheels 202 on the road surface of the first transport path 101 by rotating the fixed rollers 131 in contact with the fixed rollers 131, and the fixed rollers 131 and the swivel unit. It is equipped with 140. In the case of the present embodiment, the transport device 100 further includes a stopper 105.

In the case of the present embodiment, the transport device 100 has a carry-in / out section 171 having a function of only carrying in / out the box carriage 200 in the first transport path 101, and a cross section 172 having only a function of crossing the first transport path 101. And have.

The box trolley 200 has a box-shaped main body 201 for accommodating luggage and wheels 202 attached to the lower surface of the main body 201, and is a object to be transported by the transport device 100. The box trolley 200 is called, for example, a basket trolley whose main body is formed of a net and a frame, a heat insulating trolley whose main body is formed of a heat insulating material, or the like. The box trolley 200 not only means the case of being empty, but also the box trolley 200 is a combination of the box trolley 200 and the luggage accommodated in the box trolley 200. Specifically, the box trolley 200 can be exemplified by, for example, a net-like wall member erected from the peripheral edge of a rectangular base.

In the case of the present embodiment, the wheel 202 is a member called a so-called universal caster, and the wheel rolling on the floor surface can turn around the vertical axis. Further, in the box carriage 200, wheels 202 are attached to each of the four corners of the lower surface of the main body 201 having the appearance of a prism, and for example, the corners can be conveyed at right angles.

The box cart 200 may include not only universal casters but also wheels 202 that can rotate in any direction, such as ball casters. Further, the number of wheels 202 included in the box carriage 200 is not limited as long as it is 3 or more. Further, a wheel 202 that does not turn around the vertical axis may be provided.

FIG. 3 is a side view showing the fixed drive unit by cutting out a part of the housing.

FIG. 4 is a front view showing the fixed drive unit with a part of the housing cut out.

As shown in these figures, the fixed roller 131 is provided in the fixed drive unit 103. Further, the fixed drive unit 103 is a device for moving the box carriage 200 in the first transport path 101, and includes a fixed roller 131, a first drive source 132, and a first urging means 133. There is.

The fixed drive units 103 are arranged side by side along the first transport path 101 so that the fixed rollers 131 face inward on both sides of the first transport path 101. Further, the pair of fixed drive units 103 are arranged so as to face each other on both sides of the first transport path 101, and the pair is arranged along the first transport path 101. Further, the distance between the fixed drive units 103 adjacent to each other along the transport direction is equal to or less than the length of the box carriage 200 in the transport direction, and at least the distance between the fixed rollers 131 included in the adjacent drive units 103 is the length of the box carriage 200 in the transport direction. It is less than or equal to.

The fixed roller 131 is a roller that abuts on both side surfaces of the box carriage 200 arranged in the first transport path 101 and rotates about an axis extending in the vertical direction. In the case of the present embodiment, the fixed roller 131 is arranged at a position where it abuts on the side surface below the center of gravity of the empty box carriage 200. The fixed roller 131 moves the box carriage 200 that comes into contact with the box carriage 200 by rotating itself along the first transport path 101, and preferably comes into soft contact with the box carriage 200 and generates a frictional force. .. The shape and material of the portion of the fixed roller 131 in contact with the box carriage 200 are not particularly limited, and examples thereof include pneumatic tires and solid rubber tires such as urethane rubber tires. Further, in the figure, the fixed roller 131 is described in which the tires are stacked in two upper and lower stages, but the present invention is not limited to this, and the fixed roller 131 may be stacked in three or more stages or only one stage. Absent.

The first drive source 132 is a device that rotates the fixed roller 131 to generate a driving force for transporting the box carriage 200 by frictional force, and is, for example, an electric motor. The first drive source 132 and one of the fixed rollers 131 are connected by a first speed reducer 134 having a predetermined gear ratio. Further, the fixed drive unit 103 includes a plurality of fixed rollers 131 (two in the case of the present embodiment), and the plurality of fixed rollers 131 included in one fixed drive unit 103 are first transmission members such as a chain. 139 is used to rotate integrally with one first drive source 132. In this way, by abutting the plurality of fixed rollers 131 that rotate integrally with the side surface of the box carriage 200, the driving force can be systematically transmitted to the box carriage 200, and the box carriage 200 is stably moved. be able to.

The first urging means 133 is a device that generates a force for pressing the fixed roller 131 against the box carriage 200. In the case of the present embodiment, the fixed roller 131 and the first drive source 132 are attached to the first frame 135 and can slide in a horizontal plane in a direction perpendicular to the transport direction of the box carriage 200, and are the first urging means. The 133 is urging the fixed roller 131 together with the first frame 135 so as to project into the first transport path 101. The first urging means 133 is not particularly limited, but may be a so-called spring such as a coil spring or a leaf spring, or a device for urging by hydraulic pressure or pneumatic pressure using a cylinder.

FIG. 5 is a side view showing a part of the swivel unit cut out.

As shown in FIGS. 1, 2, and FIG. 2, the swivel unit 140 swivels with respect to the first transport path 101 to form an entry / exit area 152 (see FIGS. 1 and 2) in the first transport path 101. The swivel unit 140 arranged in the warehousing / delivery unit 171 includes a movable drive unit 104, a swivel floor 147, and a swivel means 148. Further, the swivel unit 140 arranged at the cross section 172 includes a movable drive unit 104, a widening means 161, an interference prevention means 162, a swivel floor 147, and a swivel means 148.

The entry / exit area 152 is a part of the transport path 110, and is a region that virtually appears when a plurality of movable rollers 141 are integrally swiveled so as to intersect the transport path 110 by the swivel unit 140.

The movable drive unit 104 is a device substantially similar to the fixed drive unit 103, and the movable roller 141 is provided in the movable drive unit 104. Further, the movable drive unit 104 can also move the box carriage 200 along the first transport path 101, and the first transport path 101 is formed by integrally turning the plurality of movable drive units 104 using the swivel means 148. It is also possible to move the box trolley 200 in the direction of intersecting with. The movable drive unit 104 includes a second drive source 142 and a second urging means 143 in addition to the movable roller 141.

The movable drive unit 104 is arranged on both sides of the first transport path 101 so that the movable rollers 141 face inward. In the case of the present embodiment, the movable drive unit 104 is arranged at positions corresponding to the four corners of the box carriage 200 mounted on the swivel floor 147. Further, the distance between the movable drive units 104 adjacent to each other along the transport direction is equal to or less than the length of the box carriage 200 in the transport direction as in the fixed drive unit 103, and at least the distance between the movable rollers 141 provided by the adjacent movable drive units 104 is set. It is less than or equal to the length of the box cart 200 in the transport direction. Further, the distance between the adjacent movable rollers 141 and the fixed rollers 131 is also equal to or less than the length of the box carriage 200 in the transport direction.

The movable roller 141 is a roller that abuts on both side surfaces of the box carriage 200 arranged in the first transport path 101 and rotates about an axis extending in the vertical direction. In the case of the present embodiment, the movable roller 141 is arranged at a position where it abuts on the side surface below the center of gravity of the empty box carriage 200. The movable roller 141 moves the box trolley 200 that comes into contact with the movable roller 141 along the first transport path 101, and preferably comes into soft contact with the box trolley 200 and generates a frictional force. .. The shape and material of the portion of the movable roller 141 that comes into contact with the box carriage 200 are not particularly limited, and examples thereof include pneumatic tires and solid rubber tires such as urethane rubber tires.

The second drive source 142 is a device that rotates the movable roller 141 to generate a driving force for transporting the box carriage 200 by frictional force, and is, for example, an electric motor. The second drive source 142 and one of the movable rollers 141 are connected by a second speed reducer 144 having a predetermined gear ratio. Further, the movable drive unit 104 includes a plurality of movable rollers 141 (two in the case of the present embodiment), and the plurality of movable rollers 141 included in one movable drive unit 104 is a second transmission member such as a chain. 149 is used to rotate integrally with one second drive source 142.

The second urging means 143 is a device that generates a force that presses the movable roller 141 against the box carriage 200. In the case of the present embodiment, the movable roller 141 and the second drive source 142 are attached to the second frame 145 and can slide in the horizontal plane in the direction perpendicular to the transport direction of the box carriage 200, and the second urging means. The 143 urges the movable roller 141 together with the second frame 145 so as to project into the first transport path 101.

The widening means 161 is a device that widens the distance between the movable rollers 141 arranged so as to face each other with the first transport path 101 in between. The interference prevention means 162 is a device for increasing the distance between the fixed roller 131 and the movable roller 141 arranged adjacent to each other. In the case of the present embodiment, the widening means 161 and the interference prevention means 162 are realized by one device. That is, each movable drive unit 104 is attached to each of the plurality of mobile devices 106. Then, after turning the movable drive unit 104 so as to intersect the first transport path 101, the movable drive unit 104 is moved by the moving device 106 so as to widen the distance between the opposing movable rollers 141, thereby causing the moving device 106. Functions as the widening means 161. Further, before turning the movable roller 141, the movable drive unit 104 is moved by the moving device 106 so as to narrow the distance between the opposing movable rollers 141, so that the adjacent fixed rollers 131 and the movable roller 141 are separated from each other. Since the movable drive unit 104 does not interfere with the fixed drive unit 103 even if it is swiveled, the moving device 106 also functions as the interference prevention means 162.

In the case of the present embodiment, the moving device 106 is provided in a swivel floor 147 in a buried state, and the swivel floor 147 swivels to swivel the movement of the mobile robot.

The widening means 161 and the interference prevention means 162 may be separate devices. Further, the interference prevention means 162 does not move the movable drive unit 104, but may be a device that moves the fixed roller 131 via the fixed drive unit 103. Specifically, as shown in FIG. 10, the interference prevention means 162 is fixed by moving the fixed drive unit 103 adjacent to the movable drive unit 104 in a direction away from the movable drive unit 104 along the first transport path 101. The drive unit 103 is moved. Further, the interference prevention means 162 may move the movable drive unit 104 in a direction away from the fixed drive unit 103 along the first transport path 101.

The swivel floor 147 is a member that swivels together with a movable roller in a state where the box carriage 200 transported along the first transport path 101 is placed. In the case of the present embodiment, the swivel floor 147 is a disk-shaped member arranged in a buried state so as to be flush with the road surface of the first transport path 101, and a plurality of swivel floors 147 are provided via the moving device 106 (this embodiment). In the case of the form of (4), the movable drive unit 104 is attached. Further, the swivel floor 147 has a swivel shaft extending in the vertical direction at the center of the movable drive unit 104 arranged at the four corners of the rectangle, and is installed so as to be able to swivel freely with respect to the first transport path 101.

The swivel means 148 is a device that integrally swivels the movable roller 141 around a swivel shaft that is arranged at an intermediate point of the movable rollers 141 that are arranged so as to face each other and extends in the vertical direction. In the case of the present embodiment, the swivel means 148 is connected to the swivel floor 147 and swivels the swivel floor 147 to swivel the movable roller 141 together with the movable drive unit 104. The specific structure of the swivel means 148 is not particularly limited, but for example, a device for rotating a gear that meshes with teeth provided on the peripheral surface of the swivel floor 147 with a motor can be exemplified.

The stopper 105 is a first transport path at a position where the movable rollers 141 are arranged when a plurality of movable rollers 141 are integrally swiveled in a direction intersecting the first transport path 101 (Y-axis direction in the drawing). It is a member that appears on one of the sides and abuts on the box carriage 200 to determine the position of the box carriage 200 in the first transport path 101.

In the case of the present embodiment, the stopper 105 is a rod-shaped member, and the haunting device 151 has a protruding position where the stopper 105 can come into contact with the box trolley 200, and the box trolley 200 and the stopper 105 that are swiveled by the swivel unit 140. It is a device that can move the stopper 105 to and from a retracted position that does not interfere with. The hoisting device 151 holds the stopper 105 in a cantilevered state, and moves the stopper 105 between the protruding position and the retracted position by rotating and swinging the stopper 105 around an axis orthogonal to the first transport path 101 in the horizontal plane. ing. Further, the haunting device 151 is attached to the movable drive unit 104.

Next, the operation of the swivel unit 140 in the transport device 100 will be described.

As shown in FIG. 6, when the box carriage 200 is transported along the first transport path 101, the movable drive unit 104 is arranged in the same arrangement as the fixed drive unit 103 and operates in the same manner as the fixed drive unit 103. .. In this case, the stopper 105 is in the retracted state.

Next, when forming a crossing path crossing the first transport path 101, as shown in FIG. 7, the movable drive unit 104 is provided by the interference prevention means 162 (in the case of the present embodiment, realized by the moving device 106). Is moved inside the transport path 110 together with the movable drive unit 104 to increase the distance from the fixed roller 131.

Next, as shown in FIG. 8, the intermediate points (swivel floors) of the movable rollers 141 arranged at the four corners of the rectangular region until the movable drive unit 104 is orthogonal to the first transport path 101 together with the swivel floor 147 by the swivel means 148. It is swiveled around a swivel shaft 300 arranged at the center of 147) and extending in the vertical direction.

Next, as shown in FIG. 9, the movable drive unit is separated by the widening means 161 (realized by the moving device 106 in the case of the present embodiment) so that the movable rollers 141 facing each other along the first transport path 101 are separated from each other. Move 104. As described above, a wide entry / exit area 152 can be formed along the first transport path 101, and the box trolley 200 carried by a person or a person does not interfere with the first transport path 101. It becomes possible to cross. Further, in this case, the rotary drive of the movable roller 141 of the movable drive unit 104 is stopped, and the function of moving the box carriage 200 is stopped. Further, if the purpose is only to cross the first transport path 101 and not to put in or take out the box carriage 200, the stopper 105 may not be provided.

Further, with the stopper 105 arranged at the appearance position, the movable drive unit 104 is returned to a distance where the box trolley 200 can be sandwiched, and the box trolley 200 is slightly moved by a person from the outside of the first transport path 101 to the entry / exit area 152. When inserted, the box trolley 200 is carried into the entry / exit area 152 by the rotation of the movable rollers 141 arranged on both sides of the entry / exit area 152, and can be brought into contact with the stopper 105 to be stopped. By turning the movable drive unit 104 together with the box carriage 200 in this state, the box carriage 200 can be arranged in the first transport path 101. Then, by rotating the movable roller 141 again, the box carriage 200 can be transported along the first transport path 101.

If the purpose is only to put the box trolley 200 in and out of the entry / exit area 152 and not to cross the worker or the like, the widening means 145 may not be provided.

On the contrary, by stopping the box trolley 200 transporting the first transport path 101 at a position sandwiched only by the movable rollers 141 and turning the movable drive unit 104 together with the box trolley 200, in the middle of the first transport path 101. The box trolley 200 can be carried out.

In the case of the present embodiment, there is a second transport path 102 that is flexively connected to the first transport path 101, and a fixed drive unit 103 having fixed rollers 131 is arranged on both sides of the second transport path 102. Has been done. Further, a movable drive unit 104 having a movable roller 141 is arranged at a portion where the first transport path 101 and the second transport path 102 intersect. That is, the swivel unit 140 is provided at the bent portion of the transport path 110.

As a result, when the box carriage 200 transported along the first transport path 101 is arranged in the swivel unit 140, that is, in the entry / exit area 152, the swivel means 148 also swivels the box cart 200 together with the movable drive unit 104. When the movable drive unit 104 turns until it is linearly aligned with the fixed drive units 103 arranged on both sides of the second transport path 102, the movable roller 141 in the movable drive unit 104 rotates, and the box carriage 200 is moved to the second transport path. Carry out to 102.

In this case, the stopper 105 is fixed to the swivel floor 147 and may swivel together with the swivel floor 147. Further, the widening means 161 and the interference prevention means 162 are not attached to the movable drive unit 104 in the portion.

As described above, the box carriage 200 can be transported in a bent shape (at right angles in the case of the present embodiment) without bending the transport path from the first transport path 101 to the second transport path 102. Therefore, it is possible to eliminate the waste of installation space caused by bending the transport path.

In the case of the present embodiment, a crossing path capable of crossing a person or a box carriage 200 can be formed in the transport path 110, and a flow line of a person who does not bypass the transport path 110 is secured. Is possible. In addition, the box trolley 200 can be taken in and out in the middle of the transport path 110. It is also possible to bend or intersect the transport paths 110 at right angles. From the above, it is possible to improve the degree of freedom in designing the transport path 110.

The invention of the present application is not limited to the above-described embodiment. For example, another embodiment realized by arbitrarily combining the components described in the present specification and excluding some of the components may be the embodiment of the present invention. In addition, the present invention also includes modifications obtained by making various modifications that can be conceived by those skilled in the art within the scope of the gist of the present invention, that is, the meaning indicated by the wording described in the claims, with respect to the above-described embodiment. Is done.

For example, a guide roller or a guide rail that simply contacts and guides the side surface of the box carriage 200 may be separately provided on the side of the transport path 110.

Further, although the movable drive unit 104 has been described as having the same structure as the fixed drive unit 103, the structures of the movable drive unit 104 and the fixed drive unit 103 are not limited to the same structure.

Further, when the movable drive unit 104 is arranged so as not to interfere with the fixed drive unit 103 even if it turns, it is not necessary to provide the interference prevention means 162.

Further, in the present embodiment, the transport path 110 bent at a right angle has been described, but the bending angle is not limited to a right angle.

Further, the second transport path 102 may be arranged on both sides of the end portion of the first transport path 101 at a T-shaped intersection or a cross intersection. In this case, the swivel unit 140 is arranged at the intersection.

Further, although the case where the stopper 105 is swung down to protrude and retracted by swinging up has been described, the movement of the stopper 105 is not limited to this operation. For example, the stopper 105 may be slid so as to project straight in the horizontal plane and retract in the same trajectory. Further, the stopper 105 may be moved up and down while being held in a horizontal state.

Further, as shown in FIGS. 11 and 12, not only when the stopper 105 is attached to the movable drive unit 104, but also when the stopper 105 is attached to the side of the first transport path 101 so as to be able to appear and disappear via the infestation device 151. Good.

Further, a portion having both functions of the carry-in / out section 171 and the cross section 172 may be provided in the first transport path 101.

The present invention can be used for transporting a box trolley.

100 Transport device 101 First transport path 102 Second transport path 103 Fixed drive unit 104 Movable drive unit 105 Stopper 106 Mobile device 110 Transport path 131 Fixed roller 132 First drive source 133 First urging means 134 First reducer 135 No. 1 frame 139 1st transmission member 140 Swivel unit 141 Movable roller 142 2nd drive source 143 2nd urging means 144 2nd reduction gear 145 2nd frame 147 Swivel floor 148 Swivel means 149 2nd transmission member 151 Entry / exit area 161 Widening means 162 Interference prevention means 200 Box trolley 201 Main body 202 Wheels 300 Swivel shaft

Claims (5)

A plurality of fixed rollers are arranged side by side along the first transport path on each side of the first transport path, and the first transport path is rotated by rotating fixed rollers that come into contact with both side surfaces of the box trolley passing through the first transport path. It is a transport device that transports multiple box carts at the same time while rolling wheels on the road surface.
A plurality of movable rollers that are in the middle of the first transport path and are arranged in opposition to the fixed rollers on each side of the first transport path.
An urging means for urging the movable rollers to abut on both side surfaces of the box trolley passing between the movable rollers arranged so as to face each other.
A drive source that rotates the movable roller and generates a driving force for transporting the box trolley that abuts on the movable roller.
A swivel means for integrally swirling a plurality of the movable rollers around a swivel axis arranged at an intermediate point of the movable rollers arranged in a facing direction and extending in the vertical direction.
Interference prevention means that increases the distance between the fixed rollers and the movable rollers that are arranged next to each other.
Conveying device equipped with. The transport device according to claim 1, further comprising a widening means for increasing the distance between the movable rollers arranged so as to face each other. The transport device according to claim 1 or 2 , further comprising a swivel floor that swivels together with the movable roller with a box cart mounted on it. When to pivot the movable roller in a direction crossing to the first conveying path, appearing on one side of the first conveyance path at a position where the movable roller is arranged, a box truck abuts a box truck The transport device according to any one of claims 1 to 3 , further comprising a stopper for determining the position of. Further provided with a fixed roller forming a second transport path that is flexively connected to the first transport path.
The transfer device according to any one of claims 1 to 4 , wherein the movable roller is arranged at a portion where the first transfer path and the second transfer path intersect.

Images