JP2020001892A - Conveyance auxiliary body - Google Patents

Abstract

To provide a conveyance auxiliary body suitable for conveying a material at a construction site of a building.SOLUTION: A conveyance auxiliary body 100 includes: body tools 10 each formed of two shaft members 11, a plurality of roller conveyors 12 rotatably mounted between the two shaft members 11, and a plurality of height-adjustable leg tools 20 for holding the two shaft members 11 at a predetermined height; and connectors 30, 40 for connecting the plurality of body tools 10 to each other, wherein materials can be freely conveyed on the roller conveyors 12.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a transport auxiliary body.

  At the construction site of the building, after the foundation work is carried out and the steel frame is erected, carpentry work such as indoor walls, floors and ceilings is carried out. In this carpentry work, after carrying various materials on site by truck or the like, an operator unloads the materials from the truck, transports the materials into the building manually, and assembles the transported materials. Examples of materials include, for example, steel pulleys and joists, floor panels, ceiling panels, partition panels, solar panels, heat insulating materials, stairs, screen doors, bathroom tools, sinks, and the like. Generally, the panel materials are transported in a posture stacked in a plurality of stages. Transporting such materials at the site requires a great deal of labor, and with the aging of workers and the increase in female workers, reducing labor in transporting materials at the construction site is an urgent task. It has become a challenge. In addition, although it differs depending on the construction site, it is generally said that a single material transfer distance is about 8 m to 10 m. With respect to a material transport path at a construction site, a material is unloaded from a truck on the ground outdoors, and a worker manually transports the material on a generally uphill ground toward the entrance of the building. After transporting materials into the building across the entrance, the materials are transported to various places on the first floor, and materials are transported upstairs through stairs. That is, the material transport path from the truck into the building has an uphill slope, a stairway crossing, a stairway uphill, and a flat linear shape such as a linear shape or a curved shape. This is a variety of transport paths.

  Here, a conveyor device for loading an unmanned transport vehicle has been proposed. Specifically, it can reciprocate along a transport line of a roller conveyor perpendicular to the automatic guided vehicle, and a rod coaxial with the transport line attached to the roller conveyor, and reciprocate along the transport line together with the rod. This is a loading conveyor device having a claw that engages with the load only when returning and sends the load to the automatic guided vehicle, and a mechanism that reciprocates the rod (for example, see Patent Document 1).

Japanese Utility Model Publication No. 61-8641

  Since the loading conveyor device described in Patent Document 1 is not intended to be applied to a construction site of a building, the conveyor device has an ascending slope, a straddle, a stair climb, and the like, and has a linear or linear shape. It is not applicable to various flat linear conveyance paths such as linear.

  The present invention has been made in view of the above-described problems, and has as its object to provide a transport auxiliary body suitable for transporting materials at a construction site of a building.

In order to achieve the above object, one embodiment of the transport auxiliary body according to the present invention is:
Two shaft members, a plurality of roller conveyors rotatably mounted between the two shaft members, and a plurality of height-adjustable holding the two shaft members at a predetermined height. A main body formed by the legs,
A connecting tool for connecting the plurality of body tools to each other,
The material can be transported on the roller conveyor.

  According to this aspect, by connecting the plurality of main bodies with the connecting tool, a conveyance path having a conveyance length corresponding to the site can be formed, and the height of the legs of the main body can be adjusted, thereby making it possible to adjust the slope of the site. It is possible to form a conveyance path corresponding to unevenness of the ground, unevenness of the ground, and crossing over a front door. For example, two shaft members are arranged side by side at an interval (about 30 to 50 cm, for example, 30 cm), and at a predetermined interval (at an interval of about 20 to 40 cm, for example, about 30 cm) in the transport direction. A plurality of roller conveyors are rotatably attached to each shaft member. For example, two height-adjustable legs are attached near both ends of the two shaft members so as to connect the respective shaft members. The leg is rotatably attached to the two shaft members. When the main body is not used, the leg may be rotated toward the shaft member or the roller conveyor to form a storage posture. Alternatively, the legs may be detachably attached to the two shaft members. The height-adjustable leg can be formed by two leg pieces and a horizontal piece that connects each leg piece, and each leg piece has a first leg piece that is rotatably attached to a shaft member, for example. A second leg slidably attached to the first leg in the longitudinal direction of the leg. By fixing the second leg to the first leg with a stopper at a position where the leg has a desired height, a leg having a desired height is formed, and the height of the transport auxiliary body is adjusted. . The height of the two legs can be appropriately adjusted according to the gradient required for the transport assisting body and the change in height of the mounting surface. For example, when the length of the main body in the conveying direction is about 2 m, the length of the main body in the conveying direction is about 8 m by connecting the four main bodies with three sets (two in one set) of connecting tools. Can be formed. In addition, all the members of the transport auxiliary body may be made of a hard resin, in addition to metal. By making a part or all of the main constituent members of the main body made of hard resin or aluminum which is the lightest among metals, the main body can be made as light as possible.

Further, in another aspect of the transport assisting body according to the present invention, a first pin hole is formed in the shaft member, and a second pin hole is formed in the connecting member,
At least one of the first pin hole and the second pin hole is a long hole extending in a longitudinal direction of the shaft member or the coupling tool,
The first pin hole and the second pin hole are positioned and a pin is inserted to connect the main bodies with each other.

  According to this aspect, the connecting tool having the second pin hole, which is a long hole, is positioned with respect to the first pin hole of each shaft member of the two main body tools connected to each other. By inserting a pin (for example, simply dropping) into the main body, it is possible to quickly connect the main bodies with a simple connecting mechanism. Here, "at least one of the first pin hole and the second pin hole is a long hole extending in the longitudinal direction of the shaft member or the coupling tool" means that the first pin hole extends in the longitudinal direction of the shaft member. This includes a form in which the second pin hole extends in the longitudinal direction of the connector, and a form in which both the first pin hole and the second pin hole are long holes. For example, the shaft member is formed from a channel steel, and the coupling tool can be formed by a relatively small-sized channel steel that fits into the shaft member. A second pin hole corresponding to the first pin hole of both body tools is formed in one flange of, for example, a channel steel forming the connecting tool. A bolt with a head or a screw can be applied to the pin. Since at least one of the first pin hole and the second pin hole is a long hole, the pins inserted into both the first pin hole and the second pin hole move while moving in the range of the long hole. Can be linked. When the pin moves in the elongated hole, the two main body tools connected to each other change their planar alignment between a straight linear shape and a predetermined bent linear shape via the connecting tool. Can be. When using the transport assisting body, the second pin hole of the connecting tool is positioned with respect to the first pin hole of the main tool, and the main tool can be connected only by dropping pins into both pin holes, for example. . In addition, when the transport auxiliary body has been used and disassembled and stored, removing the pin automatically removes the connector from the main unit, so that the transport auxiliary body can be quickly disassembled and stored. It can be performed.

In another aspect of the transport auxiliary body according to the present invention, a first pin hole is formed in the shaft member,
The connecting tool is formed by two rotatable pieces having a second pin hole being rotatably connected to each other,
At least one of the first pin hole and the second pin hole is a long hole extending in a longitudinal direction of the shaft member or the coupling tool,
The body pins are connected to each other by positioning the first pin hole and the second pin hole and inserting a pin.

  According to this aspect, since the connecting member is formed by the two rotating pieces that are rotatable with respect to each other, for example, the other main body is angled vertically (up and down) with respect to one main body. It can be connected while adjusting. For example, it is possible to dispose the other main body in the horizontal direction via this rotatable connecting member with respect to one main body arranged in the transport direction with an upward slope. . Since the main body located at the downstream end of the ascending transport path, that is, at the downstream where the transported material is received by the worker, is disposed horizontally, the material receiving property is improved. Further, since at least one of the rotatable connection tool and the main body has an elongated hole extending in the longitudinal direction of the connection tool or the main body, the pin moves in the elongated hole as described above. This also allows for adjustment of the plane alignment. Note that the rotatable connecting tool may be applied so as to connect the main body tools in a laterally rotatable manner for adjusting the planar alignment.

Another aspect of the transport auxiliary body according to the present invention is a roller conveyor having a downstream end main body tool at a downstream end in the material conveying direction in a state where the plurality of main body tools are connected by the connecting tool. On the surface, a sheet material having high frictional resistance is wound, and a part of the sheet material is fixed to the downstream end main body,
When the material reaches the sheet material, the speed of the material is reduced by the sheet material.

  According to this aspect, the material conveyed vigorously on the roller conveyor is effectively converted to a sheet material having a high frictional resistance provided on the roller conveyor of the downstream end body at the downstream end in the conveyance direction. By decelerating, it is possible to suppress the material from jumping out of the downstream end main body in the transport direction. Among the plurality of roller conveyors of the downstream end main body, the sheet material may be wound on, for example, a roller conveyor located at the downstream end, or may be wound on one of the roller conveyors on the upstream side (second from the downstream end). A sheet material may be wound. A roller conveyor on which a sheet material having a high frictional resistance is wound on the surface of the roller conveyor of the downstream end body, and a part of the sheet material is fixed to the downstream end body so that the sheet material is wound. Can be suppressed, whereby a high braking effect is exerted by the sheet material having a high frictional resistance. Here, examples of the sheet material having a high frictional resistance include a cloth material and a resin sheet.

  Further, another aspect of the transport assisting body according to the present invention is that, in a state where the plurality of the main components are connected by the connecting component, the downstream end main component at the downstream end in the transport direction of the material is a movable stopper. It is characterized by having.

  According to this aspect, the material that has been vigorously conveyed on the roller conveyor can be reliably stopped by the movable stopper of the downstream end main body. For example, after the speed of the material is reduced by the above-described sheet material having a high frictional resistance, the material can be reliably stopped by the stopper. Here, the movable stopper can be formed of a shaped steel material such as a channel steel or an angle iron, and is rotatably attached to an end of the downstream end main body via a rotation shaft. When the stopper is not used, the stopper can be provided (suspended) below the conveying surface formed by the plurality of roller conveyors. On the other hand, when a stopper is used, the stopper can be erected on the two shaft members via the rotating shaft.

  Another aspect of the transport assisting body according to the present invention includes a short leg that has a locking piece that is locked to the shaft member, is adjustable in height, and has a shorter length than the leg. It is further characterized by being provided.

  According to this aspect, when the main unit cannot open the leg unit, the shaft member of the main unit is locked with the short leg unit, and the main unit is adjusted to a desired gradient while adjusting the height of the main unit. Can be arranged. For example, when the main body is erected on the entrance floor with a frame across the entrance from the approach or when the main body is erected on the stairs, when trying to arrange the main body with the legs opened The case where the inclination of the main body tool is excessive may occur. In such a case, the leg on the downstream side in the transport direction of the main body is not opened, and the downstream end side of the main body is supported by the short leg, for example, on the entrance floor or on a staircase, the main body at a desired gradient. Tools can be arranged.

  In another aspect of the transport assisting body according to the present invention, a fall prevention metal fitting is provided at a position where the leg is attached to the shaft member to prevent the leg from falling down by engaging with the leg. It is characterized by the following.

  According to this aspect, after the leg is rotated with respect to the shaft member and opened, by engaging the fall prevention metal fitting of the shaft member with the leg, the open posture of the strong leg with respect to the shaft member ( Standing posture) can be formed.

Further, another aspect of the transport assisting body according to the present invention further includes a leg base having a tubular portion into which the leg is fitted, and a wide piece on the lower surface of the tubular portion for increasing a contact area with the ground. Prepare,
The leg is accommodated in the cylindrical portion, and an anchor is inserted into an anchor hole formed in the wide piece so that the leg can be inserted into the ground.

  According to this aspect, the leg is placed on, for example, the ground via the wide piece of the leg base, so that the contact pressure to the ground can be reduced, and the leg sinks into the ground. Sinking (sinking) can be prevented. Further, by inserting an anchor (pin) having, for example, an L-shape alignment into the anchor hole formed in the wide piece and inserting the same into the ground, it is possible to prevent the foot implement from tipping over and blurring. The tool can be firmly fixed to the ground in a posture where it cannot fall. When the main body forming the transport assisting body is installed on relatively soft ground, the above-described leg base is suitable.

Further, in another aspect of the transport auxiliary body according to the present invention, the transport auxiliary body has a transport tool that transports the material by moving on a plurality of the roller conveyors,
The carrier has a groove on its lower surface, and a rotating plate is rotatably and rotatably housed in the groove,
When the transfer tool moves in the transfer direction, the rotating plate hanging downwardly contacts the roller conveyor, and is accommodated in the groove according to the movement of the transfer tool,
When the conveyance tool moves in the direction opposite to the conveyance direction, the rotating plate hanging downward is locked by the roller conveyor to stop the movement of the conveyance tool.

  According to this aspect, the material is placed on the carrier, and the worker pushes the material in the transport direction, so that the material is smoothly transported to the downstream end main body, and waits near the downstream end main body. Can hand over the materials to the workers. Further, since the carrier has a rotating plate for preventing reverse running on the lower surface thereof, the carrier (upper material) which is generally conveyed on a roller conveyor of a conveying auxiliary body having an uphill attitude. However, when, for example, the material is separated from the hand of the worker who is pushing and tries to run backward along a downward slope, the rotating plate housed in the groove on the lower surface of the transport tool hangs downward. The downward rotation of the rotating plate is locked by the roller conveyor positioned in the reverse running direction, so that the subsequent reverse running of the transporter loaded with the material can be effectively prevented.

  As can be understood from the above description, according to the transport auxiliary body of the present invention, it is possible to provide a transport auxiliary body suitable for transporting materials at a building construction site.

It is a perspective view explaining the conveyance auxiliary body concerning an embodiment. FIG. 2 is a perspective view illustrating a connecting tool according to the first embodiment. It is a perspective view showing the state where the connecting fixture of a 1st embodiment has connected two shaft members. It is a perspective view showing a connector (rotatable connector) of a 2nd embodiment. It is a perspective view showing the state where the connecting fixture of a 2nd embodiment has connected two shaft members. (A) is a figure which shows the state before the fall prevention fitting engages with a leg, and (b) is a figure which shows the state in which the fall prevention fitting is engaging with a leg. It is a perspective view which shows a short leg tool. It is a figure showing the state where a main part tool is supported by short leg equipment. FIG. 7 is a perspective view showing a state in which a sheet material is wound around a downstream end roller conveyor and fixed to a sheet material stopper. It is a perspective view showing the state where a stopper was set up in the downstream end main part. It is a figure showing the state where a leg component is attached to a leg of a leg component. It is the perspective view which looked at the conveyance tool from the back side. It is a perspective view which shows the connection tool of a modified form. It is a perspective view which shows a part of conveyance auxiliary body to which the connection tool of a modification is applied. It is a figure explaining a storage state of a plurality of main parts.

  Hereinafter, a transport assistant according to an embodiment will be described with reference to the accompanying drawings. In the specification and the drawings, substantially the same components are denoted by the same reference numerals, and redundant description may be omitted.

[Transport auxiliary body according to embodiment]
With reference to FIG. 1 to FIG. 12, a transport auxiliary body according to the embodiment will be described. Here, FIG. 1 is a perspective view illustrating a transport auxiliary body according to the embodiment. FIG. 2 is a perspective view showing the connecting tool of the first embodiment, and FIG. 3 is a perspective view showing a state where the connecting tool of the first embodiment connects two shaft members. FIG. 4 is a perspective view showing a connector (a rotatable connector) of the second embodiment, and FIG. 5 is a state in which the connector of the second embodiment connects two shaft members. FIG. FIGS. 6A and 6B are diagrams showing a state before the fall prevention fitting is engaged with the leg and a state where the fall prevention fitting is engaged with the leg in that order. FIG. 7 is a perspective view showing a short leg, FIG. 8 is a diagram showing a state in which the main body is supported by the short leg, and FIG. It is a perspective view which shows the state wound around and fixed to the sheet material stopper. Further, FIG. 10 is a perspective view showing a state in which a stopper is erected on the downstream end main body, and FIG. 11 is a view showing a state in which a leg is attached to a leg of the leg. FIG. 12 is a perspective view of the carrier as viewed from the rear side. In addition, although the transport auxiliary body 100 of the illustrated example is formed by three main bodies 10, it may be formed by two main bodies 10 or four or more main bodies 10. In addition, the transport auxiliary body 100 in the illustrated example includes two types of connectors 30 and 40. However, in a transport path having no linear change in the vertical plane (such as a linear change from an upward gradient to a horizontal one), The transport assisting body may be formed only by the connecting tool 30 of the first embodiment.

  The transport assisting body 100 shown in FIG. 1 is a transport assisting body that straddles an entrance door from the ground G with an upslope via a staircase and a porch, and forms a transport path leading into the entrance. The downstream end main body tool 10 straddling the entrance door is placed on, for example, a horizontal entrance finish. That is, the transport auxiliary body 100 in the illustrated example has an upward slope and forms a horizontal transport path downstream in the transport direction. The transport assisting body 100 includes a plurality of (three in the illustrated example) main bodies 10, a connecting tool 30 according to the first embodiment for connecting the main bodies 10, and a connecting tool 40 according to the second embodiment. . Materials are loaded from the main body 10 at the upstream end into the conveyance auxiliary body 100, and the conveyed materials are delivered to a worker (not shown) waiting in the main body 10 at the downstream end along the conveyance direction. It is. The upwardly inclined main body 10 and the horizontal downstream end main body 10 are connected to each other by a connecting member 40 (the connecting member of the second embodiment) that is rotatable in the X3 direction in a vertical plane. On the other hand, general main body tools 10 that do not rotate in the vertical plane are connected to each other by a connecting tool 30 (the connecting tool of the first embodiment). In addition, each coupling tool 30 and 40 will be described in detail below.

  The main body 10 includes two shaft members 11 parallel to each other, a plurality of roller conveyors 12 rotatably attached to each shaft member 11, and each shaft member near both ends of the pair of shaft members 11. And a leg 20 rotatably attached to the base 11. The upper surface of the roller conveyor 12 is set to be flush with the upper surface of the shaft member 11 or higher than the upper surface of the shaft member 11. The downstream end main body 10 further includes a stopper 50 and a sheet material 60 having high friction resistance in addition to the basic configuration.

  As an example, the length t1 of the main body 10 in the transport direction can be set to about 2 m, the width t3 between the pair of shaft members 11 to about 30 cm, and the pitch t2 between the roller conveyors 12 to about 30 cm. In particular, the present inventors have specified that when the pitch t2 between the roller conveyors 12 is about 30 cm, it is possible to support the transportation of various materials, large and small, used at the construction site of a building.

  The shaft member 11 is formed of a channel steel, and the roller conveyor 12 is, for example, a lightweight aluminum roll material.

  The leg 20 is rotatably attached to the shaft member 11. Specifically, a fixture 25, which is also formed of a channel steel, is fitted into the channel steel forming the shaft member 11, and is rotated with respect to a fixture 26 attached to the fixture 25. The leg 20 is rotatably mounted via a driving shaft 27.

  As shown in FIG. 1, in a state where the leg 20 is opened and erected, the fall prevention is similarly rotatably mounted on the fixing bracket 26 with respect to the engaging pin 28 mounted on the fixing bracket 26. By engaging the metal fitting 29, the open posture (standing posture) of the leg 20 can be maintained, and the body 10 can be prevented from falling down. The state before the fall prevention fitting 29 is engaged with the engagement pin 28 and the state in which the fall prevention fitting 29 is engaged will be described in detail below.

  The leg 20 is formed by two leg pieces 21 and a horizontal piece 22 connecting the leg pieces 21. Each leg piece 21 is attached to the first leg piece 21a rotatably attached to the shaft member 11 and slidably attached to the first leg piece 21a in the X1 direction which is the longitudinal direction of the leg piece 21. And the second leg piece 21b. At a position where the leg 21 has a desired height, the second leg 21b is slid with respect to the first leg 21a and fastened by a stopper (not shown), thereby forming the leg 20 having a desired height. Is done. The height of the main body 10 can be adjusted by adjusting each of the two pairs of legs 20 forming the main body 10 to a desired height, and the gradient (including the horizontal posture) of the main body 10 can be adjusted. Can be.

  The two main body tools 10 on the upstream side of the transport auxiliary body 100 are both mounted on the ground G having an upward slope in the transport direction. At the construction site of a building, there is a case where the ground G has irregularities or the load resistance of the ground G is low with respect to the weight of the transported material. In such a case, the main body mounted on the ground G may be used. There is a risk that the tool 10 will rattle, fall, or sink into the ground G. Therefore, the leg component 70 is attached to the leg component 20 of the main component 10 on the ground G, and the anchor 74 engaged with the leg component 70 is driven into the ground G, so that the leg component 20 on the ground G is formed. Guarantees the stability of The specific configuration of the leg base 70 will be described in detail below.

  As shown in FIG. 2, the connector 30 of the first embodiment is formed of a channel steel, and two second pin holes 32 are formed in a lower flange 31. The second pin hole 32 is a long hole extending in the Y3 direction which is the longitudinal direction of the connecting tool 30. A head bolt 33 (an example of a pin) is loosely fitted, and the head bolt 33 is fitted on the long hole. It is designed to be locked.

  As shown in FIG. 3, a connecting tool 30 formed of a channel steel smaller in size than the channel steel is provided inside the channel steel of each shaft member 11 of the two main body tools 10 connected to each other. It is loosely fitted, and the second pin hole 32 of the connector 30 and the first pin hole 11a (bolt hole) formed in the flange below the shaft member 11 are aligned. Then, by inserting the headed bolt 33 from above into the aligned second pin hole 23 and first pin hole 11a, both shaft members 11 are connected via the connector 30.

  As shown in FIG. 3, since the second pin hole 32 is a long hole extending in the longitudinal direction of the connecting tool 30, the headed bolt 33 can slide in the long hole 32. Therefore, as shown in FIG. 3, the mutually connected shaft members 11 can be bent left and right (X2 direction) in a horizontal plane. Therefore, the two main body tools 10 on the upstream side shown in FIG. 1 can be easily changed from a straight line to a bent line in a horizontal plane. In addition, if necessary, the shaft members 11 are connected to each other only in the bending direction by the connecting tool 30 as shown in FIG. 3, and the shaft members 11 outside the bending direction are connected by the connecting tool 30. Instead, it may be in a free state. In the illustrated example, the second pin hole 32 of the connecting tool 30 is a long hole, but the first pin hole 11a of the shaft member 11 may be a long hole, or the first pin hole 11a and the second pin Both of the holes 32 may be long holes.

  On the other hand, as shown in FIG. 4, in the connecting tool 40 of the second embodiment, the rotating pieces 41 and 42 formed of two channel steels are rotatable about a rotating shaft 46 formed by bolts. It is constituted by being assembled to. A second pin hole 45 is formed in each of the lower flanges of the rotating pieces 41 and 42. The second pin hole 45 is a long hole that extends in the Y1 direction and the Y2 direction, which are the longitudinal directions of the rotating pieces 41 and 42, and the headed bolt 47 (an example of a pin) is loosely fitted thereto, and With this, the headed bolt 47 is locked.

  As shown in FIG. 5, a rotating piece 41 formed of a channel steel smaller in size than the channel steel is provided inside the channel steel of each shaft member 11 of the two main bodies 10 connected to each other. , 42 are loosely fitted. Then, the headed bolt 47 is inserted from above into the second pin hole 45 of the connecting tool 40 and the first pin hole 11a which is a bolt hole formed in the flange below the shaft member 11. Both shaft members 11 are connected via the connecting tool 40.

  As shown in FIG. 5, since the second pin hole 45 is a long hole extending in the longitudinal direction of the rotating pieces 41 and 42, the headed bolt 47 can slide in the long hole 45. Therefore, as shown in FIG. 5, the shaft members 11 connected to each other can rotate in the X3 direction in the vertical plane about the rotation shaft 46, and in addition to the movement of the connecting member 30 shown in FIG. Similarly, it can bend in the horizontal direction in the horizontal plane. Therefore, the two main body tools 10 on the downstream side shown in FIG. 1 can be bent in a horizontal direction from an upward slope, and further, the transport direction can be changed from a straight line to a bent line in a horizontal plane. it can.

  As shown in FIG. 6A, the leg piece 21 constituting the leg tool 20 is rotatably attached to a fixing tool 25 formed of a channel steel having a smaller dimension than the shaft member 11. . More specifically, in a posture in which the leg piece 21 is opened (an upright posture), a fixing bracket 26 for attaching the leg piece 21 to the fixing tool 25 is accommodated in the groove 25 a opened in the fixing tool 25. It is configured. The fixing bracket 26 is rotatably attached to the fixing tool via a rotation shaft 27, and the leg 20 is moved in response to the rotation of the fixing bracket 26 with respect to the fixing tool 25. Can be formed in an open position and a closed position in storage.

  The state shown in FIG. 6A is a state in which the leg 20 is opened with respect to the fixture 25 and stands upright. In this state, the leg 20 may fall down or rattle due to a reaction force or the like received from the material in the transport direction when the material is transported. Therefore, as shown in FIG. 6B, the fall prevention fitting 29 rotatably mounted on the fixing tool 25 is rotated, and the engaging groove 29a at the end thereof is engaged with the fixing fitting 26. By engaging with the mating pin 28, the firm opening posture of the leg 20 with respect to the fixing tool 25 (and the shaft member 11) can be maintained.

  Next, with reference to FIGS. 7 and 8, a short leg 80 applied when the leg 20 cannot be opened and a usage example thereof will be described. For example, when the main body 10 is erected on the stairs as shown in FIG. 8, when the leg 20 is opened and the main body 10 is to be disposed, the inclination of the main body 10 becomes too large, and the material May not be able to be transported properly. In such a case, as shown in FIG. 8, the leg 20 on the downstream side in the transport direction of the main body 10 is not opened, and the downstream end side of the main body 10 is supported by the short leg 80. It is possible to dispose the main body 10 at a desired gradient even on a staircase.

  As shown in FIG. 7, the short leg member 80 is formed by connecting an L-shaped plate 82 and a substantially Z-shaped plate 83 to the upper surface of a steel base plate 81 by welding or the like. A slit S1 for inserting the shaft member 11 is provided between the L-shaped plate 82 and the substantially Z-shaped plate 83, and a housing space S2 for housing the shaft member 11 passing therethrough is provided. A screw shaft 84 is connected to the lower surface of the base plate 81 by welding or the like. The short leg 80 further includes a cylindrical shaft 85 having a screw groove hollow shaft (not shown) in which the screw shaft 84 is rotatably housed, and a wide support plate 86 to which the cylindrical shaft 85 is connected by welding or the like. When the screw shaft 84 is screwed into the cylindrical shaft 85, the entire structure is formed. In a state where the shaft member 11 is housed in the housing space S2, for example, by rotating the support plate 86 in the X5 direction, the height of the short leg 80 is adjusted as desired, and as shown in FIG. The main body 10 can be supported on the slope.

  Next, with reference to FIG. 9, a description will be given of the sheet material 60 having a high frictional resistance attached to the downstream end main body 10. As shown in FIG. 9, a sheet material 60 having high frictional resistance is wound on the surface of the downstream end roller conveyor 12A of the downstream end main body 10. The sheet material 60 is further fixed to a shaft-shaped sheet material stopper 13 attached to the shaft member 11 at a position away from the downstream end roller conveyor 12A. For example, the sheet material 60 is wound in a track shape on the downstream end roller conveyor 12 </ b> A and the axial sheet material stopper 13, and the sheet material 60 is fixed to the sheet material stopper 13 by bonding or tying. . As shown in the figure, at the downstream end of the downstream end roller conveyor 10, a sheet material 60 having a fixed length corresponding to the distance between the downstream end roller conveyor 12A and the sheet material stopper 13 is laid.

  As the sheet material 60 having high frictional resistance, a cloth material such as a nonwoven fabric, a woven fabric, or a knitted fabric, or a resin sheet such as a urethane sheet or a rubber sheet can be used.

  Since the sheet material 60 having high frictional resistance is laid at the downstream end of the downstream end main body 10, the material conveyed vigorously on the roller conveyor 12 is effectively decelerated at the downstream end in the conveying direction. Can be. By this deceleration, it is possible to prevent the material from jumping out of the downstream end main body 10 in the transport direction. In particular, not only the sheet material 60 is wound on the surface of the downstream end roller conveyor 12A of the downstream end body device 10, but also a part of the sheet material 60 is fixed to the downstream end body device 10 via the sheet material stopper 13. Thus, the rotation of the downstream end roller conveyor 12A around which the sheet material 60 is wound can be suppressed, and thereby a high braking effect by the sheet material 60 is exerted.

  The shaft-shaped sheet material stopper 13 may be slidably attached to the shaft member 11 along the longitudinal direction of the shaft member 11. For example, a slit (not shown) along the longitudinal direction of the shaft member 11 is formed in a channel steel web forming the shaft member 11, and the end of the sheet material stopper 13 is slidably engaged with this slit. Let it. In this way, by configuring the sheet material stopper 13 to be slidable along the longitudinal direction of the shaft member 11, the length of the sheet material 60 in the longitudinal direction of the shaft member 11 can be adjusted. Thereby, the contact area between the material and the sheet material 60 can be adjusted, and the adjustment of the braking performance by the sheet material 60 can be achieved.

  Next, the stopper 50 attached to the downstream end of the downstream end main body 10 will be described with reference to FIG. As shown in FIG. 10, a stopper 50 is rotatably attached to the shaft member 11 at the downstream end of the downstream end main body 10. FIG. 10 shows a state where the stopper 50 is erected on the shaft member 11. The stopper 50 is formed by cutting and bending a single steel plate, and includes a base piece 51 that directly contacts a material, a rib 52 formed by bending an upper portion of the base piece, and a base piece 51. The left and right ends are bent to form a grooved steel web forming the shaft member 11, and an L-shaped engaging piece 53 to be brought into contact with and engaged with the upper flange.

  In the standing posture of FIG. 10, a long hole 54 extending in the vertical direction is formed in the engagement piece 53, and the bolt hole and the long hole 54 formed in the web of the shaft member 11 are positioned. Is screwed in, the standing posture of the stopper 50 with respect to the shaft member 11 is maintained.

  Since the downstream end main body 10 has the movable stopper 50 at the downstream end, the material conveyed vigorously on the roller conveyor 12 can be reliably stopped by the stopper 50. In particular, the material can be reliably stopped by the stopper 50 after the speed of the material is reduced by the sheet material 60 having high frictional resistance.

  When the stopper 50 is not used, the wing bolt 55 is loosened, the stopper 50 is lifted up in the X6 direction along the long hole 54, and then the stopper 50 is pivoted rearward in the X7 direction to fall down, thereby pivoting the stopper 50. It can be hung below the member 11.

  Next, with reference to FIG. 11, a leg device 70 applied when the leg device 20 is placed on the ground G will be described. As shown in FIG. 11, the leg base 70 includes a tubular portion 71 into which the leg 21 forming the leg 20 is fitted, and a wide piece 72 on the lower surface of the tubular portion 71 for increasing the contact area with the ground. Have. The cylindrical portion 71 is connected to the wide piece 72 by welding or the like.

  The wide piece 72 has a circular shape in a plan view, and by adjusting the contact area thereof, the contact pressure on the ground G can be adjusted. Therefore, it is also possible to prepare a leg device 70 having wide pieces 72 with various ground contact areas, and use the leg device 70 according to the load resistance of the ground G at the construction site.

  The wide piece 72 has two anchor holes 73, and an L-shaped linear anchor 74 is inserted into the anchor holes 73. By attaching the leg base member 70 to the leg piece 21 and installing the back surface of the wide piece 72 on the ground G, inserting the anchor 74 into the anchor hole 73 and inserting it into the ground G, as shown in FIG. The fixture 70 can be fixed to the ground G. By this anchor fixation, it is possible to prevent the leg component 70 from tipping over and blurring, and the leg component 20 can be firmly fixed to the ground G in a posture in which the leg component 20 cannot fall over. When the leg 20 is placed on the relatively strong ground G, the leg 70 is not always necessary. When the main body 10 is installed on the relatively soft ground G, the leg base 70 is preferably used.

  Next, with reference to FIG. 12, a transport tool 90 applied when transporting materials along the roller conveyor 12 of the transport auxiliary body 100 will be described. The transporting tool 90 has a pedestal 91 formed of, for example, a laminated material, and a lower surface (rear surface) opposite to an upper surface on which materials are directly placed on the pedestal 91 is provided with a rectangular counterbore 92 (an example of a groove) in plan view. ) Has been established. In the counterbore 92, a rotation plate 93 has an engagement protrusion (not shown) protruding laterally from a side end thereof, and an engagement groove (not shown) provided in a wall surface of the counterbore 92. The rotation protrusion 93 is rotatably fitted in the rotation plate 93, so that the rotation plate 93 is attached to the counterbore 92 so as to be able to move in and out while rotating. Although the rotation plate 93 is formed of a metal plate, a cut piece formed when cutting the pedestal 91 and sitting may be diverted.

  When the back surface of the conveyance tool 90 is directed downward, as shown in FIG. 12, the rotation plate 93 is rotated downward in the X8 direction by its own weight and hangs down. The mounting position of the rotating plate with respect to the spot facing 92 is an end in the transport direction as shown in FIG. Therefore, when the transport tool 90 is transported on the transport auxiliary body 100 in the transport direction, the rotating plate 93 hanging downward sequentially contacts the roller conveyor 12 on the downstream side in the transport direction, and is moved in the X9 direction (upstream in the transport direction). Side) and is accommodated in the spot facing 92.

  On the other hand, when the conveyance tool 90 moves in the direction opposite to the conveyance direction, the rotating plate 93 hanging downward contacts the roller conveyor 12 that is in the direction opposite to the conveyance direction and is locked. The movement of the tool 90 can be stopped. As shown in FIG. 1, for example, a worker 90 (and materials placed thereon) that is being conveyed on the roller conveyor 12 of the conveyance auxiliary body 100 in an uphill attitude is manually pushed. When trying to run backward along the downward slope away from the hand, the rotating plate 93 shown in FIG. 12 abuts and locks the roller conveyor 12 located in the reverse running direction. As a result, it is possible to effectively prevent the transport tool 90 loaded with the material from moving backward.

  It should be noted that a carrier in which a plurality of pedestals are rotatably connected in a vertical plane or a horizontal plane may be applied. In the transporter of this embodiment, for example, a pedestal 91 having a rotating plate 93 is arranged on the upstream side in the transport direction, and the other pedestal without a rotating plate can be applied. As described above, according to the transfer tool formed by the plurality of pedestals, it is possible to transfer a large amount of materials at a time when the transfer path is very long.

[Transportation assisting body using connection tool according to modified embodiment]
Next, with reference to FIG. 13 and FIG. 14, a description will be given of a transport assisting body to which the coupler according to the modified embodiment is applied. Here, FIG. 13 is a perspective view showing a connector of a modified embodiment, and FIG. 14 is a perspective view showing a part of a transport auxiliary body to which the connector of the modified embodiment is applied.

  The illustrated coupling tool 30A is formed by assembling two channel steels 30a and 30b having different dimensions. Specifically, a relatively small-sized channel steel 30b is fitted into a relatively large-sized channel steel 30a in, for example, a groove at a central position in a longitudinal direction, and is connected to each other by welding or the like. As a result, as shown in FIG. 13, a T-shaped coupler 30A in a plan view is formed. As shown in FIG. 13, two long holes 32 extending in the Y3 direction, which is the longitudinal direction of the channel steel 30a, are opened at the left and right positions of the flange 31 below the channel steel 30a. The headed bolt 33 is inserted. On the other hand, an elongated hole 35 extending in the Y4 direction, which is the longitudinal direction of the channel steel 30b, is opened in the flange 34 below the channel steel 30b, and the headed bolt 33 is inserted into the elongated hole 35.

  As shown in FIG. 14, two connecting tools 30 </ b> A are attached to a lower flange of one of the shaft members 11 forming the main body 10 at an intermediate position of the main body 10 forming the transport auxiliary body. A total of four bolt holes (not shown) are provided. By inserting the headed bolt 33 into the bolt hole of the shaft member 11 corresponding to the long hole 32 of the connecting tool 30A, the two connecting tools 30A for the main body 10 extending in the main transport direction forming the main transport path. Is installed. Then, the headed bolt 33 is inserted through the long hole 35 of the channel steel 30b of the two connecting tools 30A and the bolt hole (not shown) of the shaft member 11 of the main body 10 forming the branch conveyance path. The main body 10 forming the main conveyance path and the main body 10 forming the branch conveyance path are connected. In the illustrated example, the branch transport path is connected to the main transport path in an orthogonal direction. However, for example, by removing one coupling tool 30A, the branch transport path is inclined in the direction inclined with respect to the main transport path. Can also be connected.

  As shown in FIG. 14, the material (not shown) conveyed in the main conveyance direction is not only conveyed in the main conveyance direction at the intersection with the branch conveyance path, but also turned to the branch conveyance path and branched. It can also be transported in the transport direction. By providing a plurality of such branch transport paths, it is possible to form a multilayer transport auxiliary body including a main transport path and a plurality of branch transport paths.

  Next, with reference to FIG. 15, a method of storing a plurality of main components 10 that can be obtained by disassembling the transport auxiliary body 100 will be described. Here, FIG. 15 is a diagram illustrating a stored state of a plurality of main components.

  As shown in FIG. 15, the plurality of main units 10 formed by disassembling the transport auxiliary body 100 are folded by turning the leg units 20 inward to make them as flat as possible. Then, the folded main body 10 is placed on two storage pedestals B having a height equal to or higher than the height of the main body 10 in the flat posture, and the main body 10 is stacked on the upper side, whereby a plurality of main bodies 10 are stacked. The tool 10 can be stored in a space as narrow as possible.

  The storage base B is integrally formed as a whole so that shaft members having a length approximately equal to the width of the main body 10 are stacked in the height direction. For example, the storage base B having a shape as shown in the figure can be integrally formed by injection molding or the like of a resin.

  The folded main body 10 is placed on the storage pedestal B, and the main body 10 is stacked on the upper side, so that the lower main body 10 and the folded legs 20 of the upper main body 10 do not interfere with each other. Can be stacked upward. Therefore, when the next main body 10 is used, when each main body 10 is conveyed from the illustrated storage position, trouble such as the main bodies 10 interfering with each other and being separated from each other does not occur.

  It should be noted that other embodiments in which other components are combined with the configuration and the like described in the above embodiment may be adopted, and the present invention is not limited to the configuration shown here. This can be changed without departing from the spirit of the present invention, and can be appropriately determined according to the application form.

  For example, the main body 10 has a speed sensor that specifies the conveyance speed of the material conveyed based on the rotation speed of the roller conveyor 12, and has an alarm device that issues an alarm signal based on a measurement signal from the speed sensor. Is also good. For example, a sensor or the like in which the material conveyance speed is specified from the rotation speed of the roller conveyor 12 can be applied. Then, when the worker manually transports the material in the transport direction using the transport assisting body 100, when the transport speed becomes equal to or higher than the worker's walking speed (for example, 4 km / h), a sound by an alarm device is output. By notifying the worker with light, the risk during transport is reduced, and safe and stable material transport can be performed.

  Further, a weight sensor for measuring the weight of the material to which the main body 10 is conveyed may be mounted. The weight sensor transmits a signal to the alarm device when a material having a load greater than the withstand load of the main body 10 is loaded, and the main body 10 is prevented from being damaged by alarming that the material is overweight from the alarm apparatus. Can be.

  Further, in the illustrated example, the use of the transport auxiliary body 100 is a construction site of a building, but the transport auxiliary body 100 can be applied to various uses such as agriculture and a transportation business in addition to the construction site of the building.

  10: body tool (downstream end body tool), 11: shaft member (channel steel), 11a: first pin hole, 12: roller conveyor, 12A: downstream end roller conveyor, 13: sheet material stopper, 20: leg tool , 21: leg piece, 21a: first leg piece, 21b: second leg piece, 22: horizontal piece, 25: fixture (channel steel), 26: fixture, 27: rotating shaft, 28: engagement Pin, 29: Fall prevention fitting, 30, 30A: Connector (channel steel), 31, 34: Flange, 32: Second pin hole (long hole), 33, 35: Headed bolt (pin), 40: Connector, 41, 42: rotating piece, 43, 44: flange, 45: second pin hole (long hole), 46: rotating shaft (headed bolt), 47: headed bolt (pin), 50: Stopper (movable stopper), 60: sheet material (sheet material with high frictional resistance), 70: leg base, 1: cylindrical portion, 72, wide piece, 74: anchor, 80: short leg, 90: carrier, 91: pedestal, 92: counterbore (groove), 93: rotating plate, 100: transport auxiliary, G : Ground, B: Storage base

Claims (9)

Two shaft members, a plurality of roller conveyors rotatably mounted between the two shaft members, and a plurality of height-adjustable holding the two shaft members at a predetermined height. A main body formed by the legs,
A connecting tool for connecting the plurality of body tools to each other,
An auxiliary material for transporting, wherein the material can be transported on the roller conveyor. A first pin hole is opened in the shaft member, and a second pin hole is opened in the connecting tool,
At least one of the first pin hole and the second pin hole is a long hole extending in a longitudinal direction of the shaft member or the coupling tool,
2. The transport assisting body according to claim 1, wherein the main body is connected to each other by positioning the first pin hole and the second pin hole and inserting a pin. 3. The shaft member is provided with a first pin hole,
The connecting tool is formed by two rotatable pieces having a second pin hole being rotatably connected to each other,
At least one of the first pin hole and the second pin hole is a long hole extending in a longitudinal direction of the shaft member or the coupling tool,
3. The transport assisting body according to claim 1, wherein the first pin hole and the second pin hole are positioned, and the main components are connected to each other by inserting a pin. 4. In a state in which the plurality of body members are connected by the connection member, a sheet material having a high frictional resistance is wound on the surface of the roller conveyor having the downstream end body member at the downstream end in the transport direction of the material, A part of the sheet material is fixed to the downstream end main body,
4. The transport assisting body according to claim 1, wherein when the material reaches the sheet material, the speed of the material is reduced by the sheet material. 5.   The downstream end main body at the downstream end in the transport direction of the material has a movable stopper when the plurality of main bodies are connected by the connecting tool. The transport auxiliary body according to any one of claims 1 to 4.   4. The vehicle according to claim 1, further comprising a short leg having a locking piece that is locked to the shaft member, the height of the leg being adjustable, and having a shorter length than the leg. 6. The transport assisting body according to any one of items 5 to 5.   The fall prevention metal fitting which engages with the leg and prevents the fall of the leg is provided at a place where the leg is attached to the shaft member. The transport auxiliary body according to claim 1. A leg portion having a tubular portion into which the leg portion fits, and a wide piece on a lower surface of the tubular portion to increase a contact area with the ground,
The said leg is accommodated in the said cylindrical part, An anchor is penetrated by the anchor hole opened in the said wide piece, and it can be inserted in the ground freely, The Claim 1 characterized by the above-mentioned. The transport auxiliary body according to 4. The transport auxiliary body has a transport tool that transports the material by moving on a plurality of the roller conveyors,
The carrier has a groove on its lower surface, and a rotating plate is rotatably and rotatably housed in the groove,
When the transfer tool moves in the transfer direction, the rotating plate hanging downwardly contacts the roller conveyor, and is accommodated in the groove according to the movement of the transfer tool,
When the transport tool moves in the direction opposite to the transport direction, the rotating plate hanging downward is locked by the roller conveyor, and stops the transport tool from moving. Item 9. The transport auxiliary body according to any one of Items 1 to 8.

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