JP2019119227A - Conveyance wagon - Google Patents

Abstract

PURPOSE: To provide a conveyance wagon for conveying materials and devices at the time of construction of a standing-up metal roof of a metal roof having an inclined surface and allow the conveyance wagon to consistently keep a pedestal horizontally to a ground surface when moving in a direction perpendicular to an up-down direction of the inclined surface of the roof or th like and to easily move beyond obstacles.CONSTITUTION: The present invention includes a top plate 1, shaft support portions 2 fixedly attached to a lower surface of the top plate 1 so as to be located on the front and rear sides, and step-wise shafts 3 pivotally supported by the shaft support portions 2. Each of the step-wise shafts 3 includes a bearing shaft portion 31, crank shaft portions 32 each extending from both axial ends of the bearing shaft portion 31 in opposite directions from each other, and wheel shaft portions 33 formed outward from respective ends of the crank shaft portions 32 so as to be parallel to the bearing shaft portion 31. The bearing shaft portions 31 of the step-wise shafts 3 are pivotally supported by the shaft support portions 2 so as to be parallel to each other on the front and rear sides of the top plate 1. Wheels 4 having the same diameter are provided at the respective wheel shaft portions 33.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a cart for transporting materials and equipment when constructing a vertical type metal roof or a metal roof having a slope, when moving in a direction orthogonal to the vertical direction of a slope such as a roof. The present invention relates to a transport truck that can keep a pedestal always horizontal to the ground and can easily get over obstacles such as traps.

  Conventionally, the shape of the lumber in the metal roof has many shapes with a slope in the shape of the roof such as a roving roof, a gable roof, a half-flow roof, etc., and few flat and horizontal ones. In addition, generally in the case of metal roofs, roof materials are often ground along the flow direction, which is called standing.

  The metal roof is roughly divided into a folded plate type and a flat type, and this case relates to a transport carriage used for flat type construction. In addition, with respect to inclination angle (theta) of a roof, the higher one of the position is called water upper side, and the lower one is called water lower side. Furthermore, the direction in which the rainwater flows is referred to as the flow direction, and the lateral direction perpendicular to this is referred to as the direction in which the rainwater flows. The transport carriage according to the present invention is suitable when moving in the direction of rowing.

  In the construction of a metal roof, the materials used are base materials (boards, etc.), moisture proofing agents (asphalt roofing), roofing materials (also called groove boards), slings for fixing roofing materials, bolts, screws, nuts Many materials such as fasteners are used. In order to carry out construction, these materials had to be provided on the roof as a stock yard, temporarily placed there, and transported from there to a predetermined position.

  At the time of construction, materials may be scattered in a plurality of places, but in order to interfere with the relationship of cranes and construction work, the materials may be put together in one place. Therefore, every time you use the materials, you will carry the materials from the temporary storage place.

  Material transport often has to be carried not only in the flow direction of the roof but also in the row direction. In the case of material transportation, a truck on which the material can be placed is often used. When the dolly moves in the row direction of the roof, the dolly is inclined in the width direction due to the inclination angle θ, and there is a risk that the placed material may fall along the roof flow direction. Furthermore, when moving on the roof, the tires of the truck hit the boat and it was difficult to move, and the truck was used less often because the boat was damaged or knocked down.

  Therefore, at a site where there are insufficient personnel, transportation of materials and equipment is a heavy burden on the worker, and transportation, which is an auxiliary operation, can not be performed on the roof if it is not performed. Smooth transportation is a major factor in the subsequent work, and labor saving and rationalization have been required.

  In the case of a general truck, the top board also has the same inclination as the slope, and there is a risk of the load falling, so it was not possible to cross the sloped roof. Moreover, when trying to get over obstacles such as a fence, there was a possibility that it would rather damage the fence and reduce the function as a roof.

  Moreover, although patent document 1 exists so that a load may be conveyed without inclining a material with respect to the inclination of a gradient, once a loading platform is installed, it is relatively easy to move in the flow direction, but in the column direction In this case, it is difficult to move a worker with a small number of workers because the work to be installed again increases and the transportation with a load is heavy is difficult, and it is difficult to install easily.

JP, 2000-274021, A

  For this reason, in the construction of a metal roof, the problem (the technical problem or the purpose, etc.) to be solved by the present invention is that the top plate on which the material is placed always holds the horizontal surface when carrying the material. It is an object of the present invention to realize a transport carriage which can be easily transported over without damaging the roofing material of the above and can be easily transported even by one worker.

  Therefore, in order to solve the above-mentioned problems by repeating the research, the inventor of the present invention has a top plate, a pivot portion fixed to front and rear lower surface positions of the top plate, and a pivot support portion. A step-shaped shaft, the step-shaped shaft being parallel to the crank shaft portion extending in opposite directions from both axial ends of the bearing shaft portion and parallel to the outside from the bearing shaft portion side from the tip of the crank portion; The wheel shaft portion is formed in such a manner that the bearing shaft portion of the stepped shaft is axially supported by the pivot portion in parallel on both sides in the front-rear direction of the top plate, and identical to each of the wheel shaft portions. The above-mentioned subject was solved by setting it as the transport truck by which the wheel part of diameter was provided.

  According to the invention of claim 2, in the carriage for transportation according to claim 1, the opposite direction of the crank portion at both ends of the stepped shaft is about 180 degrees, and the lengths thereof are formed identical. The above problem is solved by using a truck. According to the invention of claim 3, in the carriage for transportation according to claim 1 or 2, separate members are continuously fixed to the bearing shaft portion, the crank portion and the wheel shaft portion of the stepped shaft, respectively. The above problems have been solved by the present invention as a carrying truck.

  According to the invention of claim 4, in the carriage for transportation according to claim 1 or 2, one bearing rod of the bearing shaft portion, the crank portion and the wheel portion shaft portion of the stepped shaft is bent. The above-mentioned subject was solved by having set it as the truck for conveyance formed integrally. According to the fifth aspect of the present invention, there is provided a carriage according to any one of the first, second, third, or fourth aspect of the present invention, in which the wheel portion is a carriage having the same shape. Settled. The transport carriage according to any one of claims 1, 2, 3, 4 or 5, wherein the coefficient of friction between the shaft support portion and the stepped shaft is increased. The above problem is solved by doing.

  According to the first aspect of the present invention, the transport carriage can move while keeping the top plate flat at all times without tilting the top plate regardless of the slope of the roof when moving in the direction of the row of the roof. In addition, with regard to the operation when the wheel part hits the coffin, the carriage for transportation is carried out by the pair of front wheel side wheel parts and the pair of front wheel side wheel parts mounted via the shaft support and the stepped shaft. When traveling, you can easily move over the fence. That is, when the pair of wheel portions mounted on the step-like shaft on the front side of the top plate is in a state of being shifted in the front-rear direction of the top plate, the preceding wheels first go over the weir. Moving. At this time, since the rear wheel unit moves downward, the preceding wheel unit is lifted from the bottom, which makes it easy to get over the heel. Since this operation is also performed on the rear wheel portion of the top plate, the transport carriage can be moved without any problem with the bag.

  In the invention of claim 2, by setting the opposite direction of the crank portion at both ends of the stepped shaft to 180 degrees, the stepped shaft can be easily inclined when carrying roofs of different inclination angles. . In the invention of claim 3, by making the stepped shaft a separate member, the ease of assembly of the carriage for transportation can be improved, and it can be easily carried by being easily disassembled. Moreover, in the invention of claim 4, by making the stepped shaft into a single metal wire, the weight of the entire transport carriage can be reduced, and the cost at the time of manufacture can be reduced.

  In the invention of claim 5, stable transportation can be achieved by using the same tire. In the invention of claim 6, by increasing the coefficient of friction between the bearing portion and the stepped shaft, the carriage for transportation is stabilized, and it is stabilized when traveling over obstacles such as scissors or during transportation. It can move.

(A) is a partially cutaway perspective view of the first embodiment of the present invention, (B) is a front view showing a state in which the present invention is installed in a row direction. (A) is a perspective view of the shaft support portion, stepped shaft and wheel portion of the first embodiment installed on a steep slope, (B) is a side view of (A), (C) is a front view of (A) It is. (A) is a perspective view of the shaft support portion, stepped shaft and wheel portion of the first embodiment installed on a gentle slope; (B) is a side view of (A); (C) is a front view of (A) It is. (A) is a perspective view of the shaft support portion, stepped shaft and wheel portion of the first embodiment installed on a horizontal surface, (B) is a side view of (A), and (C) is a front view of (A). (A) is a plan view of a partial cross section of the shaft support portion, the stepped shaft, and the wheel portion of the second embodiment of the present invention, and (B) is a lock bolt added to the shaft support portion in the second embodiment of the present invention It is the top view made into a partial cross section of an axial support part, a step-like shaft, and a wheel part. (A) is a side view (B) of the first embodiment of the present invention corresponding to the installation of a steep slope. (B) is a side view of the first embodiment of the present invention corresponding to the installation of a gentle slope. (A) is a side view of 1st Embodiment of this invention corresponding to installation of a horizontal surface, it is a bottom view of (B) and (A). (A) thru | or (D) is a stroke figure at the time of crossing over a standing point part in 1st Embodiment in this invention.

  Embodiments of the present invention will be described below based on the drawings. The transport carriage of the present invention is mainly used to transport materials, tools, devices and the like to a predetermined position at a work site such as a construction site. In particular, the transporting carriage of the present invention is such that the top plate 1 on which the material is placed can always be kept horizontal at the site where the construction surface 9 such as a roof is inclined.

  Here, the construction surface 9 is a surface on which a roof, a wall or the like in a construction site is to be constructed, and the construction surface 9 is a slope or a horizontal surface having a slope. Moreover, the direction which the construction surface 9 inclines is called a flow direction, and the direction orthogonal to this flow direction is called a row direction. 1 to 8 show a first embodiment and a second embodiment of the present invention. The carriage for transportation according to these embodiments includes a top plate 1 having a handle 5 on a plane and a pivot 2 on the bottom, and a stepped shaft 3 having a wheel 4 pivotally supported on the pivot 2. And consists of.

  First, a first embodiment of the transport carriage of the present invention will be described based on FIGS. 1 to 8. As shown in FIGS. 1 (A) and 6 (A), the top plate 1 is flat and rectangular. The side along the long side of the rectangle of the top 1 is taken as the front-rear direction. Moreover, let the short side of the top 1 be the width direction. Moreover, let the side by which the said handle part 5 is mounted | worn with the top plate 1 be a back side, and let the other side be a front side.

  Further, on the bottom surface of the top plate 1, pivoting portions 2 are provided at four corners in plan view. The bearing portion 2 is provided with bearing holes 21 for axially supporting both ends of the bearing shaft portion 31 of the stepped shaft 3. The stepped shaft 3 is formed by integrating the bearing shaft portion 31, the crank portions 32, 32 and the wheel shaft portions 33, 33, which are fixed in a continuous manner, respectively.

  Next, as shown in FIG. 1 (A) and FIG. 2 (A), the stepped shaft 3 is a front wheel portion of the transport carriage, and the crank portions 32, 32 are bearings from both ends of the bearing shaft portion 31. They are provided so as to extend in opposite directions with respect to the axial center of the shaft portion 31 (see FIG. 1 (B), FIG. 2 (C), etc.). Here, in the first embodiment of the present invention, the angle in the opposite direction is 180 degrees. That is, each crank portion 32 is provided so as to be perpendicular to the axial direction of the bearing shaft portion 31 (see FIG. 1 (B), FIG. 2 (C), etc.).

  With respect to the bearing shaft portion 31, the configuration shapes of the crank portions 32, 32 and the wheel shaft portions 33, 33 provided on both sides in the axial direction thereof are point symmetric with the axial center position of the bearing shaft portion 31 as a central point. [See FIG. 2 (C)]. Further, the wheel shaft portions 33, 33 are provided at end portions of the crank portions 32, 32 outside the bearing shaft portion 31 side. Furthermore, wheel parts 4 and 4 are provided at the end parts of the wheel shaft parts 33 and 33 outside the crank parts 32 and 32 side.

The wheels 4, 4, in order to enable moving the entire carriage is provided on the wheel shaft 33, 33 so that it can rotate. Further, both the wheel portions 4 and 4 use normal tires 41, and balloon tires (low pressure) in order to easily get over ridges (stands) 91 and the like of a construction surface 9 such as a roof described later. Although a tire is used, a commonly used rubber tire may be used. In addition, as another embodiment of the wheel portion 4, although not shown, a roll-shaped wheel made of synthetic resin or rubber may be used.

  As shown in FIG. 2A, since the cranks 32, 32 are provided so as to connect and fix the bearing shaft 31 and the wheel shaft 33, 33, the bearing shaft 31 is rotated. Then, the wheel shaft portion 33 via the crank portions 32, 32 at both axial ends is also configured to integrally rotate. That is, the crank portion 32 and the wheel shaft portion 33 rotate around the axis of the bearing shaft portion 31 as a rotation center [FIG. 2 (B), FIG. 3 (B), FIG. 4 (B), FIG. See A), etc.].

  In addition, as shown in FIGS. 4 and 7B, when the wheel portions 4 and 4 are in contact with the ground in a horizontal plane, the bearing shaft portion 31 and the wheel shaft portions 33 and 33 maintain parallel in plan view. The cranks 32 and 32 configured and fixing them are configured to be perpendicular to the bearing shaft 31 and the wheel shafts 33 and 33.

  Furthermore, the crank portions 32 on one side of the crank portions 32 and 32 at both ends of the bearing shaft portion 31 are provided on the traveling direction side of the carriage with respect to the bearing shaft portion 31, and one crank portion 32 is on the opposite side in the traveling direction It is provided. These step-like configurations are provided to allow an operation to easily get over a ridge (a ridge portion) 91 described later, and when the wheel portion 4 on one side is inclined upward with respect to the ground, The wheel portion 4 is configured to be inclined downward by integrally interlocking the wheel shaft portion 33 and the crank portion 32 fixed to the bearing shaft portion 31 (see FIG. 6A). It is for. The rear wheel portion of the transport carriage also has the same configuration as the front wheel portion.

  Here, in the case of the conventional general truck, when moving the slope (flow direction) in the direction of the column, the whole truck is inclined along the slope (flow direction), so the top plate is also inclined in the same manner. Materials and equipment placed on top will fall. However, by using the stepped shaft 3 in the present invention, the wheel portion 4 on one side is lifted and grounded as shown in FIG. 1 (B) by the above configuration, and the opposite wheel portion 4 is lowered and grounded. Since the balance in the row direction is maintained and the top board 1 is kept horizontal to the slope (flow direction) of the sloped construction surface 9, it can move without tilting.

  Furthermore, according to the above configuration, a steep slope (flow direction) [see FIG. 2 (C)], a gentle slope (flow direction) [see FIG. 3 (C)], a horizontal surface [see FIG. 4 (C)], etc. Even when the inclination angles θ of the roofs are different, the top board 1 is kept horizontal to the ground by automatically tilting (rotating) the stepped shafts 3 in accordance with the inclination angles θ of the roofs. The tray 1 can move without tilting.

  Next, when moving an obstacle such as a weir (stand-up portion) 91 of the construction surface 9 such as a roof, the following process is performed. First, in the case of a conventional general truck, since two wheels in the traveling direction are provided parallel to the weir, these wheels simultaneously contact the weir, so the force to push it over the weir is Is strongly required.

  On the other hand, in the carriage for transportation of the present invention, first, as shown in FIG. 8A, one wheel portion 4 of the front wheel portion abuts on the weir 91 against the weir 91 in the traveling direction. Next, in order to get over the weir 91, the crank portion 32 on the side of the wheel portion 4 together with the wheel portion 4 is inclined upward. At this time, the other wheel portion 4 and the crank portion 32 on the side of the wheel portion 4 are inclined downward [see FIG. 8 (B)].

  Next, when the wheel portion 4 that is inclined upward climbs over the weir 91, the crank portion 32 is inclined downward along with the wheel portion 4. At this time, the other wheel portion 4 and the crank portion 32 on the side of the wheel portion 4 incline upward and climb over the weir 91 in order to get over the weir 91 (see FIGS. 8C and 8D). In addition, the wheel parts 4 and 4 of a rear wheel part can also go over the weir 91 like a front wheel part.

  As described above, since only one wheel portion 4 is in contact with the weir 91, the pushing force is small, the impact applied to the weir 91 is also small, and the weir 91 is less likely to be damaged. Further, in the carriage for transportation of the present invention, when the wheel portion 4 hits the weir 91, the wheel portion 4 on the contact side is up while the other wheel portion 4 interlocking is down because of the configuration of the stepped shaft 3. In order to move, the other wheel portion 4 lifts the wheel portion 4 on the contact side from the bottom, making it easy to get over the wedge 91. Since this operation is also performed on the rear wheel unit 4, movement is easily performed even if there is a weir 91.

  A second embodiment of the present invention is described in FIG. 5 (A). The carriage for transportation of this embodiment is composed of a top plate 1 having a pivot 2 at the back and a stepped shaft 3 pivotally supported by the pivot 2 and having a wheel 4. In the front wheel portion of the transport carriage, a stepped shaft 3 axially supported by the shaft supporting portions 2, 2 is provided, and at both ends of the stepped shaft 3, wheel portions 4, 4 are provided.

  As shown in FIG. 5A, the stepped shaft 3 is formed in a step shape in plan view when the wheel portions 4 and 4 are in contact with the ground, and the shape thereof is the bearing shaft in the first embodiment. It has a metal rod shape in which three members of the portion 31, the crank portion 32 and the wheel shaft portion 33 are integrated. The rear wheel portion of the transport carriage also has the same configuration as the front wheel portion.

  As shown in FIG. 5 (B), by providing the lock bolt 7 on the shaft support portions 2 and 2, the stepped shaft 3 and the shaft support portions 2 and 2 can be fixed by tightening the lock bolt 7. . Specifically, a screw hole 22 which reaches and intersects the bearing hole 21 of the shaft support portion 2 is formed, and the screw shaft portion of the lock bolt 7 is screwed into the screw hole 22.

  Then, by fastening the lock bolt 7, the stepped shaft 3 inserted in the bearing hole 21 is pressed, and the stepped shaft 3 is fixed to the bearing hole 21 of the shaft support 2. Fixing the stepped shaft 3 can maintain the stability of the entire transport carriage during movement. The lock bolt 7 may be installed on one side or both sides of the front wheel portion or the rear wheel portion, and can also be installed on the transport carriage of the first embodiment.

  In addition to the lock bolt 7, the bearing hole 21 may be slightly smaller than the stepped shaft 3 by making the bearing hole 21 provided in the bearing 2 or 2 smaller or making the stepped shaft 3 thicker. The structure is such that the shaft support is tightly supported, and the coefficient of friction between the shaft support 2 and the stepped shaft 3 is increased, thereby bringing the shaft support 2 and the stepped shaft 3 closer to a fixed state. There is a way to maintain the stability of the entire truck. In the first embodiment and the second embodiment, although the top plate 1 is described as a plate, even if the square pipe becomes square and is provided as a frame, it does not affect the configuration and the effect. Although the stepped shaft 3 is configured as a solid shaft, it may be a thick-walled pipe type.

DESCRIPTION OF SYMBOLS 1 ... top plate, 2 ... axial support part, 3 ... step-like shaft, 31 ... bearing shaft part,
32: Crank part, 33: Wheel shaft part, 4: Car part, 41: Tire, 5: Handle part,
7 Lock bolt.

Claims (6)

  A top plate, a shaft support fixed to front and rear lower positions of the top plate, and a stepped shaft supported by the bearing, wherein the stepped shaft is opposite to each other from both axial directions of the bearing shaft. And a wheel shaft portion is formed parallel to the outside from the bearing shaft portion side from the tip end of the crank portion and the crank portion extending to the upper end, and the bearing shaft portion of the stepped shaft is the ceiling A carriage for transportation, supported in parallel by the shaft support portion on both sides in the front-rear direction of the plate, and provided with wheel portions of the same diameter on the wheel shaft portions.   The transport carriage according to claim 1, wherein the opposite direction of the crank portion at both ends of the stepped shaft is about 180 degrees, and the lengths thereof are formed to be the same. .   The transport carriage according to claim 1 or 2, wherein the bearing shaft portion, the crank portion, and the wheel shaft portion of the stepped shaft are respectively fixed to different members in a continuous manner. Truck.   The transport carriage according to claim 1 or 2, wherein the bearing shaft portion, the crank portion, and the wheel portion shaft portion of the stepped shaft are integrally formed by bending one metal rod. Transport truck characterized by.   The transport carriage according to any one of claims 1, 2, 3 or 4, wherein the wheel portion is a tire having the same shape. The transport carriage according to any one of claims 1, 2, 3, 4 or 5, wherein the coefficient of friction between the shaft support portion and the stepped shaft is increased.

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