JP6401766B2 - Transport device - Google Patents

Description

  The present invention relates to a transport apparatus.

  2. Description of the Related Art Conventionally, a transport device that transports a building material such as a wall panel member on a carriage provided with a rack is known (see, for example, Patent Document 1).

JP 2002-70312 A

However, in such a conventional conveyance device, if there are irregularities on the ground of the construction site, it is difficult to allow the construction material to enter the entire carriage to the vicinity of the mounting location in the construction site.
In particular, when a flat panel member with a predetermined weight is stacked and transported on a carriage, the wheels of the carriage are taken up by the unevenness of the ground, causing the balance to be lost in the left-right direction, or falling to drop the load. The conveyance efficiency was not good.

  Then, this invention makes it a subject to provide the conveying apparatus which can carry in a construction material easily, without being influenced by the condition of the foot of a construction site.

  The transport device according to the present invention includes a rail that is laid horizontally, vertically, or diagonally, a support member that supports the rail at a predetermined height so as to form a clearance space portion on the lower surface side of the rail, and the rail. A carriage that is mounted on the carriage and rolls on the rail, and a locking member that restricts the movement of the carriage in the rail width direction so that the wheel does not come off the rail. It is a feature.

  ADVANTAGE OF THE INVENTION According to this invention, the conveying apparatus which can convey a building material easily can be provided, without being influenced by the present conditions, such as a construction site.

FIG. 3 is a perspective view illustrating a configuration of a transfer device according to the first embodiment. It is a top view of the trolley | bogie which showed the structure of the conveying apparatus and was mounted on the rail. It is a side view of the trolley | bogie which showed the structure of the conveying apparatus and was mounted on the rail. FIG. 3 is a cross-sectional view showing the configuration of the transport device at a position along the line III-III in FIG. 2. The structure of the leg part of a conveying apparatus is shown, (a) is equivalent to arrow a in FIG. 2, the side view of the leg part which looked at the outer side from the inside, (b) is the bb line of (a). A sectional view taken along the line, (c) corresponds to the arrow c in FIG. 2, and is a side view of the leg as seen from the outside, (d) is taken along line dd in (a). It is sectional drawing in a position. It is a side view of the slope which showed the whole structure of the conveying apparatus of Embodiment 2, and was provided in the construction site. It is a top view of the extension trolley mounted on the rail with the conveyance device of Embodiment 3. It is a side view which shows the whole structure of the conveying apparatus of Embodiment 4, and shows a mode that a construction material is conveyed to the upper floor of a construction site. FIG. 10 is a schematic perspective view illustrating a state in which a support member is used in the transport device according to the fifth embodiment. It is a typical perspective view explaining a mode that a pipe for scaffolding was used as a rail with a conveyance device of Embodiment 6.

  An embodiment of the present invention will be described in detail with reference to FIGS. In the description, the same elements are denoted by the same reference numerals, and redundant description is omitted.

  FIG. 1 is a perspective view illustrating a configuration of a transport apparatus 100 according to the first embodiment. The transport apparatus 100 includes rails 2 and 2 laid horizontally, and a support member 50 that supports the rails 2 and 2 at a predetermined height h1 so as to form a clearance space 90 on the lower surface side of the rails 2 and 2. And the carriage 10 that moves along the rails 2 and 2, the wheels 22 and 22 that are mounted on the carriage 10 and roll on the rails 2 and 2, and the carriage 10 so that the wheels 22 do not escape from the rail 2. And a slip-off preventing member 30 that restricts the movement of the rail in the rail width direction W.

FIG. 2 is a top view showing the configuration of the transport apparatus 100 according to the first embodiment, and shows the rails 2 and 2 laid on the construction site and the carriage 10 placed on the rails 2 and 2. FIG. 3 is a side view of the carriage 10, and FIG. 4 is a cross-sectional view taken along the line III-III in FIG.
A plurality of support members 50 according to the first embodiment are installed at predetermined intervals in the extending direction of the rails 2 and 2. As shown in FIG. 1, the carriage 10 is installed on the rails 2 and 2 supported by the support member 50.

  The support member 50 is mounted between the pair of rails 2 and 2 and is adapted to fit the distance between the wheels 22 and 22, and the width stop member 60 and the ground surface 80 (or the base, the upper surface of the support, the floor). And a lifting member 70 interposed between them and the like.

Of these, the width stop member 60 is formed by the raising member 70 on the left and right edges of the flat plate portion 63 and the flat plate portion 63 which are arranged to be horizontal at a predetermined height h2. Rail mounting portions 61 and 61 for fixing the pair of rails 2 and 2 above the space portions 90 and 90 (see FIG. 4) are configured.
The rail mounting portions 61, 61 project stopper projections 62, 62 that restrict the movement of the rails 2, 2 in the width direction upward.
The stopper protrusions 62, 62 of each width stop member 60 hold the dimension W2 between the rails 2, 2 constant and fix them. As a result, the distance between the pair of left and right wheels 22 and 22 of the carriage 10 and the distance between the rails 2 and 2 can be matched over the entire length of the rails 2 and 2.

The raising member 70 of the first embodiment supports the rail 2 so as to have a predetermined height h1, and forms a clearance space portion 90 corresponding to the rail 2 laying portion of the lower surface 2c of the rail 2. Yes. Further, the height h2 of the width stop member 60 is set to be lower than the height h1 of the rail 2 by the thickness direction dimension h3 of the thin rail mounting portion 61 (h1 = h2 + h3).
As shown in FIG. 4, the roller member 36 according to the first embodiment is provided with a predetermined interval so as not to contact the lower surface side of the rail mounting portion 61 while being inserted in the clearance space portion 90. Yes.

Further, the raising member 70 is interposed between the ground surface 80 and the flat plate portion 63 of the width stopper member 60. The raising member 70 is made of a long square member, and is set such that the widthwise dimension W1 is smaller than the widthwise dimension W2 that is the minimum of the rails 2 and 2 (W1 <W2). Yes.
Therefore, a sufficient width direction dimension can be obtained, and the roller member 36 in the clearance space 90 does not interfere with the raising member 70. In this state, the carriage 10 moves on the rails 2 and 2 laid substantially horizontally on the ground surface or floor surface while rolling the columnar (roller-shaped) wheels 22, It is configured to convey a flat building material 99 or the like loaded on the board.

  In the first embodiment, the raising member 70 is made of square material. However, the invention is not limited to this, and for example, the raising member 70 is made of another building material such as wood or brick. You may do it. Further, the shape, size, material, and combination of the raising member 70 are not particularly limited as long as the raising member 70 can support the width stopper member 60 so as to have a predetermined height h1 from below.

  The pair of left and right rails 2 and 2 in the first embodiment are configured by connecting a plurality of the same type 2 × 4 materials or 2 × 6 materials as standard building materials.

A carriage 10 that moves along the rails 2 and 2 is disposed on the rails 2 and 2. The cart 10 has a loading platform 11 on which building materials are loaded. The loading platform 11 is connected by vertical frame members 4 and 4 and horizontal frame members 6 and 6 so as to have a substantially rectangular shape in a top view.
Further, a substantially central portion between the vertical frame members 4, 4 and the horizontal frame members 6, 6 is connected by a reinforcing horizontal member 8 and a reinforcing vertical member 9. Then, the reinforcing cross member 8 and the reinforcing vertical member 9 are connected orthogonally at the center of the loading platform 11 to improve the rigidity of the loading platform 11.
Further, a traction hook member 14 is provided on the front side surface 6 a of the horizontal frame member 6 positioned on the front side in the traction direction F of the carriage 10.

  At the four corners of the loading platform 11 of the carriage 10, a plurality of square plate-like mounting plates 12 are provided. The mounting plate 12 of this embodiment is located at the corner where the vertical frame member 4 and the horizontal frame member 6 are connected. Each mounting plate 12 is fixed so that the side edges are connected to both the vertical frame member 4 and the horizontal frame member 6 so as to be integrated.

Each mounting plate 12 of the carriage 10 is provided with a mounting hole 12a. A pivot shaft 21 a protruding from the caster 20 is attached to each attachment hole 12 a.
As shown in FIG. 4, the caster 20 is mainly configured to include a metal bracket 21 as a bracket, a wheel 22, a shaft member 24, and a detachment preventing member 30.

Among these, the metal bracket 21 has an upper surface portion 21c having a pivot shaft 21a protruding from the center portion, and a pair of left and right side wall portions 21b and 21b provided integrally with the upper surface portion 21c. And it is comprised so that it may become the longitudinal cross-section substantially C shape which open | releases a downward direction in three surfaces (refer FIG.5 (b)).
The left and right side wall portions 21b and 21b extend downward from the left and right side edges of the upper surface portion 21c. A wheel 22 is supported between the left and right side wall portions 21b and 21b so as to be rotatable by a shaft member 24 provided horizontally.

  In the metal bracket 21 of the first embodiment, left and right side wall portions 21b and 21b are extended downward to form a pair of left and right extending portions 29 and 29 (see FIG. 5A). ). The extending portion 29 is extended to the substantially same vertical position as the side surface 2b of the rail 2 (see FIG. 5B). The extending portions 29 and 29 are configured to face the side surfaces 2b and 2b on both sides of the rail 2, respectively.

Each extended portion 29 is integrally formed with guide slopes 28 and 28 at the front and rear positions in the pulling direction F (see FIGS. 5A and 5C).
And these guide slope parts 28 and 28 are each formed so that it may expand toward the front-back direction (refer FIG.5 (d)). Thus, the guide slopes 28 and 28 guide the caster 20 when the carriage 10 is installed on the rail 2, and the center position in the width direction of the wheel 22 is directed to the left and right center positions on the upper surface 2 a of the rail 2. Are configured to guide.
Thereby, for example, even if the rails 2 and 2 made of a straight 2 × 4 material are connected at a connecting portion with a predetermined angle and draw a curve, the carriage 10 is connected to the rails 2 and 2. Can be run along.

In addition, the extension member 29 located outside the caster 20 is provided with a locking member 30 fixed by fixing bolts 31 (see FIGS. 5B and 5C).
The stopper member 30 has an arm portion 32 and a retaining portion 34 and has a substantially L-shape when viewed from the front, and the carriage 10 moves in the rail width direction so that the wheel 22 does not come off the rail 2. Is regulated.
Among these, the arm portion 32 has a flat plate shape in a side view, and extends further downward from the extending portion 29 of the metal bracket 21 that rotatably supports the wheel 22.

Further, as shown in FIG. 4, the retaining portion 34 is inserted into a clearance space portion 90 described later from the outer side in the left-right direction toward the inner side, and the roller member 36 facing the lower surface 2 c of the rail 2 and the arm portion 32. And a support shaft member 38 for supporting the roller member 36 in a cantilevered manner.
When the carriage 10 tilts to the left and right, the roller member 36 interferes with the lower surface 2c of the rail 2 and prevents further tilting.
In this embodiment, the roller member 36 is fixed and supported by the support shaft member 38. However, the present invention is not limited to this. For example, the roller member 36 is supported rotatably about the support shaft member 38 as a rotation center. It may be.

FIG. 6 is a side view of the slope 110 provided on the construction site, illustrating the overall configuration of the transfer device 100 according to the second embodiment.
The slope 110 is formed on the upper inclined surface of the scaffold 111 provided from the low place 115 to the high place 116. On the upper surface of the slope 110, a plurality of support members 50 are provided at predetermined intervals, and rails 2 and 2 are laid.
The carriages 10 that are prevented from coming off by the come-off preventing members 30 and 30 are disposed on the rails 2 and 2. At this time, the guide slope portions 28 and 28 integrally formed at the front and rear positions of the extended portion 29 of the caster 20 guide the rails 2 and 2 so as to come to the center in the width direction. For this reason, the left and right casters 20 and 20 can be easily attached to the rails 2 and 2.
In the second embodiment, the support member 50 includes the raising member 70 (see FIG. 1) as in the first embodiment. However, the rails 2 and 2 can be laid only by the width stopper member 60. If so, the raising member 70 may not be used.

Next, one end of the traction rope 114 is locked to the traction hook member 14 of the carriage 10. Then, the tow rope 114 is wound up by the electric winch 113 suspended from a highly rigid portion such as a wall panel member. Thereby, the carriage 10 is pulled up from the low place 115 to the high place 116 along the rails 2 and 2. At this time, the wheels 22, 22 of the carriage 10 are not detached from the rails 2, 2 by the detachment prevention members 30, 30, and there is no possibility of derailment or rollover.
Here, although the electric winch 113 is suspended from the wall panel member, the electric winch 113 is not limited to this, and the electric winch 113 may be locked to a pillar, a beam member, or the like as long as it has a high rigidity.

  In the transport apparatus 200 according to the second embodiment configured as described above, a plurality of support members 50 are placed on the slope 110 at predetermined intervals. For this reason, the unevenness of the ground surface is further mitigated, and the pair of left and right rails 2 and 2 can be laid from the low place 115 to the high place 116 in a flat state.

  Moreover, the rails 2 and 2 of the first and second embodiments are configured by connecting a plurality of 2 × 4 materials. For this reason, it has good dimensional stability, and it is easy to obtain materials on construction sites such as construction sites, etc., and material processing, rail 2 installation, recombination, direction change, and trajectory movement can be performed in a short time. Recyclability is also good.

Further, there is no possibility that the carriage 10 is tilted by the detachment preventing members 30 and 30 or the wheels 22 are removed. For this reason, regardless of the size of the building material that conveys the dimensions between the left and right casters 20, 20, the configuration of the carriage 10 including the loading platform 11 can be made compact regardless of the size of the building material. Therefore, the weight of the carriage 10 can be reduced and the vehicle loadability is also good.
In addition, in this Embodiment 1, although comprised so that it may wind up with the electric winch 113, depending on the weight of the building material 99 to convey, it can convey also by human power. In addition, by providing a power device such as an engine or an electric motor in the cart 10, it is possible to make it self-propelled.

For example, when the carriage 10 is pulled along the rails 2 and 2 by the electric winch 113 or manually, the carriage 10 moves along the rails 2 and 2 from the low place 115 to the high place 116 in a state where the building material is loaded. To do.
At this time, as shown in FIG. 4, the left and right side walls 21b and 21b of the metal bracket 21 located on both sides of the wheel 22 are arranged in the width direction of the wheel 22 so as not to interfere with the side surfaces 2b and 2b of the rail 2. Regulate the movement of For this reason, the wheel 22 does not roll off on the upper surface 2a of the rail 2 along the extending direction.

The roller member 36 of the come-off prevention member 30 moves in the clearance space portion 90 to prevent the carriage 10 from tilting, so that the carriage 10 does not come off from the rails 2 and 2 and derails or falls. Fasten like so. During movement, the loading platform 11 of the carriage 10 is kept substantially horizontal, and the building material 99 placed on the loading platform 11 is not dropped during transportation.
As shown in FIG. 1, the rail mounting portion 61 that supports the rails 2 and 2 is thin and has a small height direction dimension h <b> 3 like the flat plate portion 63. For this reason, the clearance amount between the lower surface side of the rail mounting part 61 and the roller member 36 is ensured, and the movement of the roller member 36 is not hindered.

  Moreover, the shape of the raising member 70 among the support members 50 that support the rails 2 and 2 can be processed to absorb the unevenness of the ground surface. Furthermore, the width stopping member 60 keeps the distance between the two rails 2 and 2 mounted on the rail mounting portions 61 and 61 constant. For this reason, even in a construction site where unevenness exists on the ground, a flat conveyance path can be easily formed on the upper surface of the slope 110, and the rails 2 and 2 can be laid to a desired location.

Even if the rails 2 and 2 turn left and right and draw a curve, the wheels 22 of the casters 20 can roll independently and follow the curve. Furthermore, a turntable may be provided at a curve having a small curvature radius, a branch point, or the like.
As described above, in the transport apparatus 100 according to the first embodiment, the rails 2 and 2 serving as a transport path can be easily laid using a building material that can be easily procured at a construction site. In addition, the transport device 100 can reliably transport the building material 99 to a desired place.

FIG. 7 is a top view illustrating a configuration of the carriage 210 used in the conveyance device according to the third embodiment. In addition, the same code | symbol is attached | subjected and demonstrated about the same thru | or equivalent part as the said Embodiment 1,2.
The cart 210 according to the third embodiment employs a configuration in which the two carts 10 and 10 according to the first embodiment are connected in the longitudinal direction along the extending direction of the rails 2 and 2. In addition, the one horizontal frame material 6, the left and right attachment plates 12 and 12, and the casters 20 and 20 of one carriage 10 in the connecting portion are omitted.
In this third embodiment, each caster 20 is provided with a locking member 30 (not shown) as in the first embodiment, so that the carriage 210 is prevented from coming off from the rails 2 and 2. .

In the cart 210 of the third embodiment configured as described above, in addition to the effects of the first and second embodiments, a long building material corresponding to the two carts 10 and 10 is further loaded on the loading platform 211. Can be transported.
Other configurations and operational effects are the same as those in the first and second embodiments, and thus the description thereof is omitted.

FIG. 8 is a top view illustrating the configuration of the carriage 310 used in the transport apparatus 300 according to the fourth embodiment. In addition, the same code | symbol is attached | subjected and demonstrated about the same thru | or equivalent part as the said Embodiment 1,2.
First, the differences in configuration will be mainly described. The carriage 310 according to the fourth embodiment is provided with a receiving fence 312 at the rear end 311 in the pulling direction. The receiving fence part 312 has the base part 313 formed at right angles to the loading platform 11 so that it may become a bottom face in the lifting state.
The receiving fence portion 312 is configured so that the building material 99 does not fall even when the flat building material 99 stacked on the loading platform 11 is pulled up along the rails 2 and 2 laid obliquely at an inclination angle α. It is received by contacting the bottom side 313.

  In the cart 310 of the fourth embodiment configured as described above, in addition to the effects of the first and second embodiments, the rail 2 having a large inclination angle α even if a sufficient scaffold area cannot be secured in the low place 115. , 2 can be laid and the carriage 310 can be pulled up along the rails 2, 2.

Further, both the rails 2 and 2 having a substantially flat inclination as in the second embodiment and the rails 2 and 2 having a large inclination angle α as in the fourth embodiment can be used as the carriage 310.
Furthermore, the rails 2 and 2 are configured by connecting a plurality of 2 × 4 materials. For this reason, it is not necessary to separately install a ladder by using both the ladder required for vertical movement.
Other configurations and operational effects are the same as those in the first to third embodiments, and thus the description thereof is omitted.

FIG. 9 is a schematic perspective view illustrating a state in which the gantry 410 is used in the transport apparatus 400 according to the fifth embodiment.
In the conveyance device 400 of the fifth embodiment, a trapezoidal frame 410 that supports the width stopper member 60 in a side view is used.
For example, when the position GL of the ground surface on the low place 115 side is lower than the position where the rails 2 and 2 on the high place side are laid, the gantry 410 is inserted under the width stop member 60 and the rail 2 , 2 are configured to have the same height direction position as the height side and to the desired height.
Other configurations and operational effects are the same as those in the first to fourth embodiments, and thus the description thereof is omitted.

FIG. 10 shows a conveyance device 500 according to the sixth embodiment in which a scaffolding pipe member (single pipe) 103 is used as the rail 102.
First, the difference in configuration from the transport apparatus 100 of the first embodiment will be described. In the transport apparatus 500 of the sixth embodiment, the left and right end portions of the width stopper member 160 that supports the hollow cylindrical tube member 103 are described. Is formed with a semicircular rail mounting portion 161 having an open upper surface as a rail mounting portion.
Then, the rail 102 is engaged with the rail mounting portion 161 and the bolt member 165 is fastened from below, whereby the pair of rails 102 and 102 are fixed to the left and right edge portions, respectively.

  The rail 102 of the sixth embodiment is configured by using a hollow cylindrical tube material 103. For this reason, even if it fixes at the position of any rotation angle around an axis | shaft, the surface which the wheel 22 contacts can be arrange | positioned upwards. Therefore, in addition to the function and effect of the first embodiment, the workability of laying the rails 102 and 102 is further good.

In addition, in this Embodiment 6, although the cylindrical wheel 22 of the same shape as Embodiment 1 is used, it does not restrict in particular to this. For example, instead of the wheel 22, a rubber tire or a small drum-like spool that engages with a single pipe may be used, and the shape, quantity, and material of the wheel 22 are not particularly limited.
Other configurations and operational effects are the same as or equivalent to those of the first to fifth embodiments, and thus description thereof is omitted.

As described above, in the transport device of the present invention, the rails 2 and 2 using the same building material are laid on a flat surface having unevenness, a slope connecting a low place and a high place, etc. Can be formed. For this reason, by changing the pulling direction, the building material 99 can be conveyed by the same cart 10 or the like continuously from the horizontal movement to the high place.
Therefore, since it is not necessary to transfer the building material 99 to another cart 10 or the like during the conveyance, the conveyance efficiency is good.

Further, the roller member 36 inserted in the clearance space 90 below the rail mounting portions 61 and 161 formed by the raising member 70 comes into contact with the lower surface 2c of the rail 2 to prevent the cart 10 from overturning. .
During the movement of the carriage 10, the roller member 36 moves in the clearance space 90. For this reason, it does not interfere with the surrounding rail 2, the rail mounting portion 61, the raising member 70, and the ground surface 80. Therefore, the carriage 10 can move on the rail 2 smoothly.
Thus, the transport apparatus of the present invention can easily carry in the building material 99 without being affected by the situation at the foot of the building site.

  As mentioned above, although the conveying apparatus which concerns on this embodiment was explained in full detail in Embodiment 1-6, this invention is not limited to these Embodiments 1-6, and is suitably in the range which does not deviate from the meaning of this invention. Needless to say, it can be changed.

  For example, in Embodiment 1, 2 × 4 material as a building standard material is used as the rail 2, and in Embodiment 6, the scaffold pipe material 103 is used as the rail 102. I have explained. However, the present invention is not limited to this, and any building material may be used as long as it is long and has dimensions in the width direction such that the wheel 22 is not removed by the bracket 21. For example, other standard materials such as 2 × 2 material, 2 × 6 material, laminated material, or metal material may be used as the rail, and the number, shape, and combination of the rails 2 are not particularly limited.

  Further, in the first embodiment, the rails 2 and 2 are laid horizontally, and in the fourth embodiment, the rails 2 and 2 laid obliquely with a large inclination angle α are used. The inclination angle α may be any number between 0 to 90 degrees, or may be vertical (α = 90 degrees).

  Further, the detachment preventing member 30 is fixed to the metal bracket 21 of the caster 20 by the fixing bolts 31, 31, but is not limited thereto. For example, when the carriage 10 is placed on the rails 2 and 2, the detachment prevention member 30 may be retracted so as not to interfere with the rails 2 and 2. The shape of the stopper member 30 is not limited to a roller shape. For example, the shape, quantity, and material of the stopper member 30 such as a rod shape and a plate shape are not particularly limited.

  In the above-described embodiment, the description has been given by showing the example in which the locking member 30 is fixed to the bracket 21. However, the present invention is not limited to this. For example, the locking member 30 may be fixed to the side portion of the carriage 10. In addition, the fixing place of the stopper member 30 is not particularly limited.

  Furthermore, although the plate-shaped thing was shown and demonstrated as the building material 99 conveyed with the trolley | bogie 10, it is not restricted to this in particular. For example, the shape, quantity, and material of the building material are not particularly limited as long as the material is carried in the field, such as square, pipe, roof tile, and residential equipment.

Industrial application fields

  The present invention is not limited to civil engineering sites such as construction sites and road construction, but is suitable for use in sites such as factories, agriculture, and fisheries.

2,102 Rail 10, 210, 310 Dolly 20 Caster 21 Bracket 21b Left and right side wall part 22 Wheel 28 Guide slope part 29 Extension part 30 Detachment member 32 Arm part 34 Detachment part 50 Support member 60, 160 Width prevention member 70 Lifting member 90 Clearance space 99 Building material 100, 300, 400, 500 Conveying device 103 Pipe material 113 Electric winch 311 Rear end portion 312 Receiving fence portion

Claims (5)

Rails laid horizontally, vertically or diagonally;
A plurality of support members for supporting the rail at a predetermined height so as to form a clearance space on the lower surface side of the rail;
A carriage that moves along the rail;
Wheels mounted on the carriage and rolling on the rail;
A locking member for restricting movement of the carriage in the rail width direction so that the wheel does not derail from the rail;
Equipped with a,
The support member includes a pair of left and right edge portions fixed to the left and right edge portions, respectively, and a width stop member adapted to fit the distance between the left and right pair of wheels, and the width stop member from the lower side to a predetermined height. A raising member for supporting the rail, and a stopper projection that protrudes upward from the upper surface of the width stop member and restricts movement of the rail in the width direction,
The raising member is set to be smaller than the dimension in the width direction that is the minimum of the rail,
The clearance space is located below the width stop member and to the side of the raising member,
The transport device according to claim 1, wherein the detachment preventing member has a retaining portion that is inserted into the clearance space portion and faces the lower surface side of the width retaining member . The anti-separation member comprises a bracket that rotatably supports the wheel, an arm portion that extends further downward from the bracket, and a cantilever shape from the lower end of the arm portion. The conveyance device according to claim 1, further comprising: a retaining portion having a letter shape . The conveying device according to claim 2 , wherein a guide slope portion that guides the wheel onto the rail is formed on the bracket. The said rail is comprised using the standard material for construction, The conveying apparatus as described in any one of Claims 1-3 characterized by the above-mentioned. The said rail is comprised using a pipe material, The conveying apparatus as described in any one of Claims 1-3 characterized by the above-mentioned.

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