JP2017039577A - Conveying device and conveyance facility provided with conveying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a conveying device in which a second support portion of an elevation support part lying just under a first conveyance part can be elevated to a position sufficiently higher than a first conveying surface of the first conveyance part at a position for conveyance.SOLUTION: A conveying device is provided with: a first conveyance part 20 which can convey a conveyance object 50 in a first conveyance direction d2 in a state of supporting the conveyance object 50 from below by a first support portion 2 forming a first conveying surface 25; an elevation support part 30 provided just under the first conveyance part 20, and comprising a second support portion 3 which supports at upper ends 31 the conveyance object 50 from below movably at least in a direction different from the first conveyance direction d2, in a vertically movable manner between a descent position where the upper ends 31 lie below the first conveying surface 25 and an ascent position where the upper ends 31 lie above the first conveying surface 25, in a form of passing through the first conveying surface 25; and a lifter 40 for raising and lowering the elevation support part 30.SELECTED DRAWING: Figure 1

Description

  The present invention provides a first transport unit capable of transporting a transport target in a first transport direction in a state in which the transport target is supported from below by a first support unit that forms a first transport surface, and A first support is an elevating support provided directly below, and a second support that supports the object to be conveyed at the upper end so as to be movable at least in a direction different from the first transfer direction from below. An elevating support unit that is capable of ascending and descending in a form penetrating the first conveying surface across a descending position located below the conveying surface and an elevated position having an upper end located above the first conveying surface; The present invention relates to a transport apparatus provided with a lifting section for supporting section that raises and lowers a section and a transport facility provided with the transport apparatus.

As a conventional example of such a transport device, a roller conveyor (first transport) that can transport a transport target in the first transport direction while the transport target is supported from below by a plurality of rotating rollers (first support portions). Part) and a chain transformer (second support part) that can be moved up and down directly below the roller conveyor (for example, Patent Document 1).
In the conveying device of Patent Document 1, the roller conveyor is installed in a state where the height is fixed, and a chain transformer provided immediately below the roller conveyor is raised and formed by a plurality of rotating rollers of the roller conveyor. By projecting the upper end of the chain transformer from the first transport surface, the transport object is supported by the roller conveyor and transported, and the lateral direction that is supported by the chain transformer and orthogonal to the first transport direction in plan view It is possible to switch between the state of transporting the paper.
As described above, such a conventional transport apparatus projects the upper end portion of the second support portion from below the first transport surface of the first support portion, and moves the transport object from the first support portion to the second support portion. Change to support section. Therefore, such a conveyance apparatus is normally provided with the raising / lowering part for support parts which raises a 2nd support part.

JP2015-59035A

  The lifting part for the support part in the transport device of Patent Document 1 raises the second support part in the lift support part, but since the first transport part is fixed immediately above the lift support part, Even if the second support part is raised, it can be raised only to a height at which the second support part interferes with the first transport part. That is, the upper limit of the upper end portion of the second support portion is a height that depends on the distance at which the upper end portion of the second support portion at the raised position is separated from the first transport surface of the first transport portion, There exists a problem that a 2nd support part cannot be raised to a position sufficiently higher than the height of the 1st conveyance surface of a 1st conveyance part.

In particular, when it is necessary to install the first transport unit at a low height near the floor for the purpose of improving space utilization efficiency, the first transport unit is located when the second support unit is in the lowered position. A sufficient separation distance from the first conveying surface cannot be secured, and when the second support portion is positioned at the lifted position, the lift amount cannot be secured sufficiently. As a result, the upper end portion of the second support portion is sufficiently secured. There is a disadvantage that it cannot be raised to a high position.
For example, in the configuration of the conventional transport device, in order to ensure a sufficient amount of rise of the second support portion while installing the first transport portion close to the floor surface, for example, by forming pits on the floor surface, It is conceivable to form a sufficiently high space directly under one transport unit. However, such a configuration requires a large amount of work for installing the transport device, and increases the cost for installation. Moreover, when a conveyance apparatus is provided in a moving body, it is the structure which cannot be employ | adopted.

  Therefore, a transport device that can raise the second support part of the lifting support part provided directly below the first transport part to a position sufficiently higher than the first transport surface of the first transport part at the transport position is desired. It is done.

  The characteristic configuration of the transport device according to the present invention is the first transport that can transport the transport object in the first transport direction in a state where the transport object is supported from below by the first support portion that forms the first transport surface. And an elevating support part provided immediately below the first transport part, and the upper end part supports the transport object from below so as to be movable in a direction different from at least the first transport direction. The second support portion is configured such that the first transport surface extends over a descending position where the upper end portion is located below the first transport surface and an elevated position where the upper end portion is located above the first transport surface. A conveying device provided with an elevating support section provided in a form that penetrates freely and a support elevating section for elevating the elevating support section, wherein the first conveying section is configured to transfer the object to be conveyed Position for transporting in the first transport direction and above the transport position And a lifting part for transporting part that lifts and lowers the first transporting part is provided, and the lifting part for supporting part moves the second supporting part between the lowered position and the raised position. A first raising / lowering operation for raising and lowering between the two, and a second raising / lowering operation for raising and lowering the second support portion between the raised position and the second raised position further upward from the raised position. The unit positions the first transport unit at the transport position during the first lifting operation, and maintains a state in which the upper end portion is positioned above the first transport surface during the second lifting operation. In the point which is comprised so that said 1st conveyance part may be raised / lowered.

  According to this configuration, when the support lift unit lowers the lift support unit and the second support unit of the lift support unit is in the lowered position, the first support unit of the first transport unit supports the object to be transported. Ready to go. In addition, when the support lift unit raises the lift support unit and the second support unit is in the raised position, the upper end of the second support unit is positioned above the first transport surface, and the second support unit The part is in a state in which the conveyance object can be supported movably in a direction different from the first conveyance direction.

  Further, when the second support portion is positioned at the raised position by the first lifting operation, the upper end portion of the second support portion is positioned above the first transport surface with respect to the first transport portion located at the transport position. And it will be in the state which can support a conveyance target object from the downward direction in a 2nd support part.

  And while the 2nd support part raises / lowers by 2nd raising / lowering operation, the raising / lowering part for conveyance parts raises / lowers the 1st conveyance part, maintaining the state which an upper end part is located above a 1st conveyance surface. Thus, during the second lifting operation, the upper end portion of the second support portion is always positioned above the first transport surface of the first transport portion, and the state in which the transport target can be supported from below by the second support portion is maintained. Is done.

  Thus, when raising / lowering the raising / lowering support part by 2nd raising / lowering operation, the 1st conveyance part will raise / lower following the raising / lowering support part.

  And since the 1st conveyance part raises / lowers following a raising / lowering support part, even if the separation distance of the upper end part of the 2nd support part located in a raise position and the 1st conveyance surface is small, the 2nd raising / lowering performed after that In operation, the first transport unit rises following the lifting and lowering of the lift support unit, so that the upper end of the second support unit in the raised position is longer than the distance separating from the first transport surface of the first transport unit, The second support part can be raised from the lowered position.

  Thus, the conveyance which can raise the 2nd support part of the raising / lowering support part provided directly under the 1st conveyance part to a position sufficiently higher than the 1st conveyance surface of the 1st conveyance part in the position for conveyance. An apparatus can be provided.

  A further characteristic configuration of the transport device according to the present invention is provided with a guide support portion that supports the first transport portion so that the first transport portion can be lowered by its own weight and guides raising and lowering of the first transport portion. A holding portion is provided that restricts the lowering from the transfer position to hold the first transfer portion at the transfer position, and the lifting support portion is raised from the raised position to the second raised position. Accordingly, a receiving part that contacts the first transport part from below and supports the load of the first transport part is provided integrally with the second support part, and the support part elevating part is provided with the second support part. By raising the support portion from the raised position to the second raised position, the first conveying portion is moved from the conveying position to the conveying position while the receiving portion is in contact with the first conveying portion from below. Guided by the guide support part at a position above the position In that it is adapted to lift.

According to this configuration, when the second support part rises from the raised position to the second raised position, the receiving part integral with the second support part comes into contact with the first conveyance part from below to support the first conveyance part. Will do. Thereafter, since the support lift unit further raises the lift support unit, the first transport unit supported by the receiving unit provided integrally with the second support unit is lifted together with the second support unit. Then, if the elevating support unit is lowered by the support elevating unit, the first transport unit is lowered by its own weight while being guided by the guide support unit while being supported by the receiving unit of the elevating support unit that is lowered. To do. When the first transport unit is lowered to the transport position, further lowering is restricted by the holding, and the first transport unit is held at the transport position.
In other words, according to this configuration, the support lifting unit can move the first transport unit up and down via the receiving unit integral with the second support unit, and the support lifting unit can be moved to the transport unit. It functions as an elevator.
Since the support lifting unit functions as the transporting unit, there is no need to separately provide the support lifting unit and the transporting unit, and the configuration for raising and lowering the first transporting unit is simple. Can be achieved.

  The characteristic configuration of the transport facility according to the present invention is the transport facility provided with the transport device described above, and is the same as the first transport surface when the first transport unit is located at the transport position. A second conveyance device having a height conveyance surface and capable of transferring the conveyance object to and from the first conveyance unit is provided on the floor surface.

  According to this configuration, in the transport device, the second support portion can be raised to a sufficiently high position even if the first transport surface when positioned at the transport position is set to a low height near the floor surface. Therefore, when the second transport device for transferring the object to be transported with the transport device is provided on the floor surface of the transport facility, the transport surface of the second transport device can be set low. Therefore, the space of the transport facility can be used efficiently.

  A further characteristic configuration of the transport facility according to the present invention includes an article transport vehicle that includes the transport device and travels on the floor surface, and the first transport direction coincides with a travel front-rear direction of the article transport vehicle. There is in point.

According to this configuration, the article transport vehicle includes the transport device that can transfer the object to be transported to and from the second transport device, and can travel on the floor surface. The conveyance object can be exchanged at a position higher than the conveyance surface of the second conveyance device at a location away from the location where the object is exchanged.
In addition, since the first transport direction coincides with the traveling front-rear direction of the article transport vehicle, for example, the article transport vehicle travels toward the second transport device, and the transport object is placed between the second transport device. When the article transport vehicle stops at the place to give and receive, the article transport vehicle keeps the posture that has been traveled so far, and transports the article along the first transport direction by the first transport apparatus, thereby The transfer object can be exchanged properly.

Side view of the article transport vehicle when the elevating support part is located at the second ascending position Side view of the article transport vehicle when the elevating support part is located at the lowered position The principal part enlarged view which shows the change of the height of the 2nd support part and 1st conveyance part by 1st raising / lowering operation and 2nd raising / lowering operation | movement. The figure which shows a mode that a 2nd conveying apparatus and an article conveyance vehicle give and receive a conveyance target object. Top view of goods transport vehicle The top view of an article conveyance vehicle in the case of giving and receiving the conveyance target object supported by the 2nd support part in the 2nd raising position

  As shown in FIGS. 1 to 3, the transport device 1 according to the present embodiment holds the transport target object 50 in a state where the transport target object 50 is supported from below by the first support portion 2 that forms the first transport surface 25. The first transport unit 20 that can be transported in the first transport direction d2 and the elevating support unit 30 provided immediately below the first transport unit 20, and at least the first transport object 50 at the upper end 31 The second support part 3 that supports the second support part 3 movably in a direction different from the transport direction d2 from the lower side is shown in a lowered position H2 (the second support shown in FIG. 3A) in which the upper end part 31 is located below the first transport surface 25. The position of the part 3 relative to the first transport part 20) and the raised position H4 where the upper end part 31 is located above the first transport surface 25 (relative to the first transport part 20 of the second support part 3 shown in FIG. Ascending and descending support provided in a form penetrating the first conveying surface 25 over the first position) And parts 30, and the lifter 40 as a support portion for lifting unit for lifting the lifting support 30 is provided.

  And the 1st conveyance part 20 and the conveyance position H1 (position of the 1st conveyance part 20 shown in FIG. 2) which convey the conveyance target object 50 to the 1st conveyance direction d2, as shown in FIG.1 and FIG.2. It can be raised and lowered over a position above the transfer position H1 (the position of the first transfer unit 20 shown in FIG. 1). In the description of the present embodiment, as shown in FIG. 3, the position of the first transport unit 20 is indicated by the height of the first transport surface 25 with respect to the traveling vehicle body 10, and the lifting support unit 30 (and the second support provided therein) is provided. The position of the part 3) is indicated by the height of the second transport surface 35 relative to the traveling vehicle body 10.

  The transport apparatus 1 is provided with a lifter 40 that also serves as a support lifting unit that lifts and lowers the lifting support unit 30 as a transporting lift unit that lifts and lowers the first transport unit 20. The lifter 40 is configured to move the second support portion 3 up and down between the lowered position H2 and the raised position H4, and to raise the second support portion 3 further upward from the raised position H4 and the raised position H4. The lifter 40 moves up and down between the position (the position of the second support portion shown in FIG. 1), and the lifter 40 positions the first transport unit 20 at the transport position H1 during the first lift operation. During the second lifting / lowering operation, the first transport unit 20 is lifted and lowered while maintaining the state where the upper end 31 is positioned above the first transport surface 25.

  Further, the transport device 1 is provided with a guide support portion 22 that supports the first transport portion 20 so as to be lowered by its own weight and guides the raising and lowering of the first transport portion 20, and the first transport portion 20 is located at a transport position H1. A holding portion 23 is provided that restricts the lowering downward and holds the first conveying portion 20 at the conveying position H1, and the elevating support portion 30 is further elevated from the ascending position H4 to the ascending position H4. Accordingly, a receiving portion 33 that comes into contact with the first transport portion 20 from below and supports the load of the first transport portion 20 is provided integrally with the second support portion 3, and the lifter 40 moves the lift support portion 30 to the raised position H 4. The first transport unit 20 is lifted from the transport position H1 to a position above the lift position H4. Therefore, the lifter 40 also functions as a lifting / lowering unit for the conveyance unit.

Hereinafter, details of the transport apparatus 1 will be described.
In this example, first, an article transport vehicle 100 that mounts the transport device 1 on the traveling vehicle body 10 and transports the transport object 50 will be described. Next, as a specific example of using the article transport vehicle 100, as illustrated in FIG. 4, an example in which the article transport vehicle 100 is used in a transport facility 200 in which a fixed second transport device 70 is installed on a floor surface 80. Will be explained.

First, the article transport vehicle 100 will be described.
Although the details of the article transporting vehicle 100 are omitted, a plurality of wheels 11, a control unit 12 that controls the traveling operation of the traveling vehicle body 10 and the conveying operation of the conveying device 1, a power source 13 that supplies traveling power, A bumper 14 made of an elastic member is provided in order to maintain traveling safety. The traveling vehicle body 10 includes at least some of the wheels 11 for steering and at least some of the wheels 11 as drive wheels that can be switched between forward and reverse, and travels along the traveling front-rear direction d1 to travel straight ahead. And it is comprised so that turning driving | running | working can be performed.

The conveyance apparatus 1 with which the article conveyance vehicle 100 is provided is provided with the 1st conveyance part 20, the raising / lowering support part 30, and the lifter 40, as shown to FIGS. In this example, the transport device 1 is provided in a state in which the position in plan view is fixed with respect to the traveling vehicle body 10 such that the first transport direction d2 is the travel front-rear direction d1 of the article transport vehicle 100.
That is, the article transport vehicle 100 includes the traveling vehicle body 10 that travels on the floor surface 80, the transport vehicle 1 is provided on the traveling vehicle body 10, and the first transport direction d <b> 2 of the transport device 1 is the traveling front-rear direction d <b> 1 of the article transport vehicle 100. It matches.
The article transport vehicle 100 travels on the floor surface 80, and exchanges the transport target object 50 with various other devices.

The first transport unit 20 is a transport mechanism that can be transported in the first transport direction, and is configured as a so-called roller conveyor in this example.
The 1st conveyance part 20 supports the 1st support part 2 comprised by the some roller 21 which forms the 1st conveyance surface 25, and the some roller 21 in the position which mutually separated in the 1st conveyance direction d2 rotatably. The first base 24, the guide support portion 22 that guides the raising and lowering of the first base 24, and the holding portion 23 that contacts the first base 24 from below and holds the first transport portion 20 at the transport position H1. I have.

  As shown in FIG. 5, the plurality of rollers 21 are arranged such that the intervals between the adjacent rollers 21 in the first transport direction d2 are constant. In this example, a space S surrounded by the first base 24 is formed. The space S is a space including a gap formed between adjacent rollers 21 at the upper end portion.

It supplements about the guidance support part 22 and the holding | maintenance part 23 with which the conveying apparatus 1 is provided.
The guide support unit 22 is a guide mechanism that guides the operation of the first transport unit 20. In this example, it is configured by four rod-like bodies 32 penetrating in the vertical direction at the four corners in plan view of the first base 24 so as to guide the movement of the first transport unit 20 along the vertical direction.
The holding unit 23 is composed of a plurality of block bodies. The plurality of block bodies are fixed at the same height with respect to the four rod-shaped bodies 32 constituting the guide support section 22, and the first transport section 20 causes the transport object 50 to move in the first transport direction. The guide support portion 22 is provided in a fixed height at a height at which the lower end of the first base 24 comes into contact with the lower end of the first base 24 when it is located at the transfer position H1, which is the height to be transferred to d2. Accordingly, the holding unit 23 is configured to restrict the first transport unit 20 from descending below the transport position H1.
As described above, the traveling support body 22 is provided in the traveling vehicle body 10 to support the first transport unit 20 so as to be able to descend by its own weight, and the first transport unit 20 is restricted from descending below the transport position H1. A holding portion 23 that holds one conveyance portion 20 at the conveyance position H <b> 1 is provided in the guide support portion 22.

  The elevating support part 30 includes a receiving part 33 and a second support part 3 provided integrally with the receiving part 33.

  A lifter 40 that can be lifted and lowered mounted on the article transport vehicle 100 is connected from below by a receiving part 33, and the lifting support part 30 is lifted and lowered by the lifter 40.

The lifter 40 is a drive device that can raise at least the lifting support 30.
In this example, the lifter 40 includes a pair of X links, the lower end portion of the X link is connected to the traveling vehicle body 10, and the upper end portion is connected to the receiving portion 33 in the lifting support portion 30.

The second support part 3 is a member that penetrates the first transport surface 25 and supports the transport object 50 from below. The second support portion 3 is provided at the upper end of the plurality of rod-like bodies 32 fixed to the upper surface of the receiving portion 33 in a vertically upward posture, and the upper end of the rod-like body 32, and directly supports the conveyance object 50 from below. Part 31.
In this example, as the upper end portion 31, a ball caster having a rotary sliding portion made of a spherical body is used. And the upper end part 31 is being fixed to the front-end | tip part of the rod-shaped body 32 with the attitude | position in which the rotation sliding part faces upwards.

It supplements about the rod-shaped body 32 and the upper end part 31. FIG.
Depending on the length of the rod-like body 32, the height at which the upper end portion 31 protrudes above the first transport surface 25 can be determined.
In this example, each of the plurality of rod-like bodies 32 is configured to have the same length. Thereby, the rotation sliding part of the some upper end part 31 is equal to the same height. And the 2nd conveyance surface 35 is formed because the rotation sliding part of these some upper end parts 31 is equal in the same height.

  That is, the second support unit 3 supports the transport target object 50 from below by a plurality of the upper end portions 31 provided with the ball casters, so that the transport target object 50 can freely move on the second transport surface 35. It can be supported as possible.

Here, in the state where the upper end portion 31 is fixed to the rod-like body 32, the sum of the vertical dimensions of the rod-like body 32 and the upper end portion 31 is the thickness of the first transport unit 20 (the plurality of rollers 21 from the lower end of the first base 24. Is set to be larger than the length to the upper end of the.
If it does in this way, the length of the up-and-down direction of the 2nd support part 3 will become longer than the thickness of the 1st conveyance part 20.

In this example, as shown in FIG. 5, the rod-like bodies 32 are located in the gaps between the adjacent rollers 21, and the plurality of rod-like bodies 32 are along the rotation axis direction of the rollers 21 in each gap. It arrange | positions in the form which makes the column-shaped rod-shaped body group B. FIG.
In the example shown in FIG. 5, an example in which five rod-like bodies 32 are provided as the rod-like body group B is shown. However, how many rod-like bodies 32 constitute the rod-like body group B is arbitrary, and a plurality of rod-like bodies 32 are formed. The bodies 32 need only be dispersed and arranged in plan view so that an appropriate second transport surface 35 corresponding to the shape and size of plan view of the conveyance target 50 is formed.

  The lifter 40 lifts and lowers the lift support 30 as a lift for the support, and moves the second support 3 up and down between the lowered position H2 and the raised position H4. A second raising / lowering operation for raising and lowering between the ascending position H4 and the second ascending position further upward from the ascending position H4 is performed.

  The lifter 40 further serves as a transporting unit lifting / lowering unit, and performs the second lifting / lowering operation while maintaining the state where the receiving unit 33 supports the first base 24 from directly below, whereby the first transporting unit 20 is moved to the transporting position H1. Then, it can be raised to a position above that, and vice versa to lower the first transport unit 20 and return it to the transport position H1.

  The raising / lowering operations of the first conveying unit 20 and the raising / lowering support unit 30 in the first raising / lowering operation and the second raising / lowering operation will be described mainly with reference to FIG.

  In the first lifting / lowering operation, the second support portion 3 moves up and down between a lowered position H2 shown in FIG. 3 (a) and a raised position H4 shown in FIG. 3 (b). During the first raising / lowering operation, the conveyance supported by the first conveyance surface 25 as the lifter 40 is moved upward from the state where the elevation support portion 30 is at the lowered position H2 (X link is extended). The upper end 31 comes into contact with the object 50 from below. When the lifter 40 is further moved upward, the transport object 50 is separated from the first transport surface 25 in a state where the transport object 50 is supported by the upper end 31 from below. When the lifter 40 is further extended, as shown in FIG. 3B, the upper end portion 31 supports the conveyance object 50 from below, and the receiving portion 33 abuts from below the first base 24. It will be in the state. At this time, the position of the first transport surface 25 has not changed yet.

  In the process of operating the lifter 40 to the ascending side during the first raising / lowering operation, the total height of the rod-like body 32 and the upper end 31 is higher than the thickness of the first transport unit 20, so the upper end 31 is the first. When projecting above the transport surface 25 so that the transport object 50 can be supported by the upper end portion 31 and the lifter 40 is continuously operated to the ascending side, the receiving portion 33 of the lift support portion 30 is moved to the first transport portion. It is possible to contact the first base 24 of 20 from below and to support the first transport unit 20 from below by the lifting support unit 30.

It supplements about the sum total of the height of the rod-shaped body 32 and the upper end part 31. FIG.
The total height is higher than the thickness of the first conveying unit 20, but the height corresponding to the difference obtained by subtracting the thickness from the total height is a height equal to or less than the diameter of the roller 21 in this example. It is preferable that the height be less than half the diameter of the roller 21. In other words, the total height of the rod-shaped body 32 and the upper end portion 31 is preferably a length less than the diameter of the roller 21 with respect to the thickness of the first transport unit 20, more preferably less than half the diameter of the roller 21. It is better to increase the length of.
By determining the total height of the rod-shaped body 32 and the upper end portion 31, the position of the upper end portion 31 at the second ascending position can be made as high as possible while keeping the transport position H1 of the first transport portion 20 low. .

  When the lifter 40 is further moved upward by the second lifting / lowering operation after the first lifting / lowering operation is completed, the receiving portion 33 supports the first base 24 as shown in FIG. Is lifted from the transfer position H1. That is, the lifter 40 lifts and raises the first transport unit 20 via the lift support unit 30 in the process of lifting the second support unit 3 from the lift position H4 to the second lift position.

  During the second raising / lowering operation, the upper end 31 is positioned above the first conveying surface 25 from the gap of the roller 21 or the side of the roller 21 (as shown in FIG. 1 and FIG. 3B). Is maintained. Therefore, a state in which the plurality of upper end portions 31 forming the second conveyance surface 35 support the conveyance object 50 from below is maintained, and the conveyance object 50 moves in all directions along the second conveyance surface 35. The free state will be maintained.

  The transport device 1 of this example can increase the position of the upper end portion 31 in the second ascending position even if the vertical size of the lifting support portion 30 is reduced. For this reason, the first transport surface 25 when the first transport unit 20 is positioned at the transport position H1 can be set at a low position by reducing the vertical size of the lift support unit 30.

As described above, the transport device 1 of this example raises the lifting support unit 30 with the lifter 40 that is the first transport device located at the transport position H1, and then further the first transport unit 20 and the lift support unit. 30 can be raised integrally.
Further, during the second lifting operation, the upper side portion including the upper end portion 31 of the first support portion 2 protrudes from the first conveyance surface 25 of the first conveyance portion 20 located at a position higher than the conveyance position H1. Thus, the conveyance object 50 is supported by the upper end portion 31 of the first support portion 2.
And the lifter 40 raises the 1st conveyance part 20 and the raising / lowering support part 30 at the same speed in 2nd raising / lowering operation | movement.

  In this way, by lifting the first transport unit 20 integrally with the lifting support unit 30, the position of the upper end 31 at the second raised position is made as high as possible while keeping the transport position H1 of the first transport unit 20 low. be able to. And since the upper end part 31 is supporting the conveyance target object 50 above the 1st support part 2 during the 2nd raising / lowering operation, after the raising / lowering support part 30 is located in a 2nd raising position, it is the 1st conveyance direction d2. Can move the conveyance object 50 in another direction along the second conveyance surface 35 in another direction.

  As described above, the conveyance device 1 has a large difference between the height at which the conveyance target 50 is transferred by the first conveyance unit 20 and the height at which the conveyance target 50 is transferred by the elevating support unit 30. When the transport object 50 is transferred by the elevating support unit 30, the transport object can be moved in a direction different from the first transport direction d <b> 2 of the first transport unit 20.

A specific example of use of the article transport vehicle 100 on which the transport device 1 is mounted will be described.
As shown in FIG. 4, the article transport vehicle 100 can be used in a transport facility 200 in which a second transport device 70 is further provided.

The 2nd conveyance apparatus 70 is a conveyance apparatus different from the conveyance apparatus 1. In this example, the 2nd conveyance apparatus 70 is a fixed-type roller conveyor apparatus, and is provided in the floor 80, 1st conveyance part It has the conveyance surface 71 of the same height as the 1st conveyance surface 25 when 20 is located in the position H1 for conveyance. For this reason, between the 1st conveyance part 20 and the 2nd conveyance apparatus 70 by making both adjoin in the attitude | position in which the 1st conveyance direction d2 of a 1st conveyance part and the conveyance direction of the 2nd conveyance apparatus 70 correspond. The conveyance object 50 can be exchanged.

  As shown in FIG. 4, the article transport vehicle 100 receives the transport object 50 transported from the transport surface 71 of the second transport device 70 on the first transport surface 25 by the first support unit 2. With the support object 2 supporting the conveyance object 50, the vehicle 11 travels on the floor surface 80 by rotating the wheels 11 of the traveling vehicle body 10, conveys the conveyance object 50, and produces other equipment (for example, production of processing equipment or the like). Can be handed over to the equipment).

  Next, a specific example in which the conveyance device 1 delivers the conveyance object 50 to a chucking device which is an example of another facility using the article conveyance vehicle 100 will be described with reference to FIG.

FIG. 6 shows a state in which the conveyance object 50 is placed on the conveyance device 1.
In this example, the conveyance object 50 includes a pallet 51, a roll body 53, and a mounting table 52 that supports the roll body 53 placed on the pallet 51. The roll body 53 is a wound product obtained by winding a resin film, for example. The roll body 53 includes a hollow shaft 54 at the center thereof.

First, the article transport vehicle 100 in a state where the first transport unit 20 in an unloaded state is positioned at the transport position H1 travels along the traveling front-rear direction d1 and moves in the transport direction of the second transport device 70. In a state in which the transport direction d2 matches, it stops at a position adjacent to the second transport device 70. The conveyance object 50 is moved in the first conveyance direction d2 by the cooperation of the second conveyance device 70 and the first conveyance unit, and the first conveyance unit 20 receives the conveyance object 50 from the second conveyance device 70. Then, the article transport vehicle 100 moves to a chucking stop position set corresponding to a chucking device (not shown).
Then, in a state where the traveling vehicle body 10 is stopped at the chucking stop position, the transport device 1 lifts the roll body 53 to a height at which the pair of arms 60 of the chucking apparatus can chuck the roll body 53. That is, the lifter 40 raises the conveyance object 50 to a position at which it can be chucked while being supported by the upper end portion 31 of the elevating support portion 30 by the first elevating operation and the second elevating operation.

Then, chucking is started with the pair of arms 60.
First, as a chucking operation, the tip of the pair of arms 60 is moved to the vicinity of both ends of the shaft 54 of the roll body 53, and the interval between the pair of arms 60 is reduced by a set amount so as to approach each other. Insert it at the end.

In performing a chucking operation for inserting the chucking pin 61 into the end portion of the shaft 54, high positional accuracy is generally required for the positional relationship between the chucking pin 61 and the shaft 54.
In this example, when the article transport vehicle 100 is stopped at the chucking stop position, even if a so-called misalignment based on the shift of the stop position occurs, the roll body 53 is moved to the first position as the chucking operation proceeds. By moving along the second conveyance surface 35 at the upper end portion 31 of the second support portion 3 and the planar view posture of the roll body 53 is corrected together with the pallet 51, the misalignment is eliminated.

  In this way, when the transport device 1 and the article transport vehicle 100 are used, the roll body 53 is received together with the pallet 51 at a low position from the second transport device 70 installed close to the floor surface 80, and a pair of chucking devices is received. The arm 60 can lift the pallet 51 to a height at which the roll body 53 can be chucked, and the posture of the roll body 53 in a plan view is brought into an appropriate posture by the contact between the chucking pin 61 and the shaft 54 during the chucking operation. Since it is guided, the conveyance from the second conveyance device 70 to the chucking device can be appropriately performed.

[Another embodiment]
The present invention is not limited to the above-described embodiment, and various other modifications are possible. As an example of the change, another embodiment of the present invention will be described below. Note that the configurations of the following embodiments are not limited to those applied individually, and can be applied in combination with the configurations of other embodiments as long as no contradiction arises.

(1) In the above-described embodiment, the lifter 40 including the X link is illustrated as the support lifting unit that also serves as the transport unit lifting unit. However, specific configurations of the transport unit lifting unit and the support lifting unit are illustrated. Is not particularly limited.
For example, it is good also as a structure which the raising / lowering part for conveyance parts and the raising / lowering part for support parts carry out raising / lowering operation independently by each raising / lowering drive part. Moreover, it can also be set as the structure which used the actuator driven with a ball screw, and the structure which used the air cylinder for both or any one of the raising / lowering part for conveyance parts, and the raising / lowering part for support parts.

(2) In the above-described embodiment, the upper end portion 31 of the second support portion 3 is configured by a ball caster. However, if the upper end portion 31 can be supported movably in a direction different from the first transport direction, You may comprise the 2nd support part 3 and the upper end part 31 by a structure.
For example, you may comprise the 2nd support part 3 with the chain conveyor provided with the some winding chain which can rotate along the conveyance direction orthogonal to the 1st conveyance direction d2. In this case, the winding upper portion of the plurality of winding chains functions as the upper end portion 31.
(3) In the above-described embodiment, the conveyance object 50 is exemplified by the roll body 53 and the pallet 51 that supports the roll body 53. However, as the conveyance object 50, for example, a cardboard case or a container case Various articles can be employed.
(4) In the above-described embodiment, the conveying device 1 is mounted on the traveling vehicle body 10 and can move on the floor surface. However, the present invention is not limited to this, and the conveying device 1 may be fixed to the floor. Good.
(5) In the above-described embodiment, the fixed roller conveyor device is illustrated as the second transport device 70, but the present invention is not limited thereto, and the second transport device 70 may be movable on the floor surface. For example, the second transport device 70 may be a vehicle-type forklift. In this case, the lift part of the forklift is the transfer surface 71, and the lift part of the forklift transfers the transfer object 50 as the transfer surface 71 at the same height as the first transfer surface 25.

  Note that the configurations disclosed in the above-described embodiments (including other embodiments, the same applies hereinafter) can be applied in combination with the configurations disclosed in the other embodiments as long as no contradiction arises. The embodiment disclosed in this specification is an exemplification, and the embodiment of the present invention is not limited to this. The embodiment can be appropriately modified without departing from the object of the present invention.

1: Transport device 2: First support unit 3: Second support unit 10: Traveling vehicle body 20: First transport unit 22: Guide support unit 23: Holding unit 25: First transport surface 30: Lift support unit 31: Upper end 33: Receiving part 40: Lifter (lifting part for supporting part, lifting part for conveying part)
50: Transport object 70: Second transport device 71: Transport surface 80: Floor surface 100: Article transport vehicle 200: Transport equipment H1: Transport position H2: Lowering position H4: Lifting position d1: Traveling front and rear direction d2: First Transport direction

Claims (4)

A first transport unit capable of transporting the transport object in the first transport direction in a state in which the transport object is supported from below by a first support unit forming a first transport surface;
A second support that is an elevating support unit provided directly below the first transport unit, and that supports the transport object from below at the upper end so as to be movable in a direction different from at least the first transport direction. The part penetrates the first transport surface over a lowered position where the upper end portion is located below the first transport surface and an elevated position where the upper end portion is located above the first transport surface. Elevating and lowering support section that can freely move up and down,
A transport device provided with a lifting part for supporting part that lifts and lowers the lifting support part,
The first transport unit is movable up and down over a transport position for transporting the transport object in the first transport direction and a position above the transport position,
A lifting part for transporting part for raising and lowering the first transporting part is provided,
The support lifting unit is configured to move the second support unit up and down between the lowered position and the raised position, and to move the second support unit further upward from the raised position and the raised position. Perform a second lifting operation to raise and lower between the second ascending position,
The transport unit elevating unit positions the first transport unit at the transport position during the first elevating operation, and the upper end portion is positioned above the first transport surface during the second elevating operation. A transport device that raises and lowers the first transport unit while maintaining the state. A guide support part is provided for supporting the first transport part so as to be able to descend by its own weight and guiding the raising and lowering of the first transport part,
A holding unit is provided that restricts the first transport unit from descending below the transport position and holds the first transport unit at the transport position;
The elevating support part contacts the first conveying part from below as it rises from the ascending position to the second ascending position and supports a receiving part that supports the load of the first conveying part. In one with the part,
The lifting part for supporting part raises the second supporting part from the raised position to the second raised position, so that the first receiving part comes into contact with the first conveying part from below. The transport apparatus according to claim 1, wherein the transport unit is raised from the transport position to a position above the transport position while being guided by the guide support unit. A transport facility provided with the transport device according to claim 1 or 2,
The first conveyance unit has a conveyance surface that is the same height as the first conveyance surface when the first conveyance unit is located at the conveyance position, and the conveyance object is exchanged with the first conveyance unit. A transport facility with a flexible second transport device on the floor. An article transport vehicle that includes the transport device and travels on the floor surface is provided,
The transport facility according to claim 3, wherein the first transport direction coincides with a traveling front-rear direction of the article transport vehicle.

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