JP7356140B2 - Wheel members and assembly type transportation equipment - Google Patents

Description

Article 30, Paragraph 2 of the Patent Act applies Worker Limited Company website Publication date: October 21, 2020 Website address https://poweredworker. workerjp. com/

TECHNICAL FIELD The present invention relates to a wheel member constituting a transport tool and an assembled transport tool. In particular, the present invention relates to a wheel member and an assembly-type carrier, which constitute a carrier whose shape can be easily changed depending on the transportation location and the object to be transported, and which is easy to transport. More specifically, it can be assembled into various shapes of carriers using standard components of ``wedge tie-down type scaffolding,'' which is a type of single-tube scaffolding among steel pipe scaffolding mainly used at construction sites. The present invention relates to wheel members and assembly-type carriers.

A "wedge tie-down type scaffold" consists of a column member that has insertion holes for tie-downs on all four sides at predetermined intervals in the length direction, a horizontal member that has a wedge-shaped tapered insertion part at the end, diagonal members, etc. It is assembled from unit members. Specifically, the desired members of the strut member and the unit member are combined, the insertion part of the unit member is inserted into one of the fastening insertion holes around the strut member, and the head is lightly touched with a hammer. It is then hammered and assembled into the desired shape. Compared to clamp fixing, which holds the circumference of a round steel pipe and fixes it with bolts, this method is becoming more popular at construction sites because it requires less time and effort to assemble.

Compared to wide frame scaffolding, ``wedge tie-down scaffolding'' has the advantage of being assembled in a narrow dedicated area. On the other hand, since the constituent members of the strut members and unit members are long and thin, when the scaffold is dismantled, the dismantled constituent members of the upper layer of the scaffold are handed over to the lower level workers in order and lowered to the ground floor. A simple and safe transportation method is required in order to prevent accidents of falling components when dismantling scaffolding.

Conventionally, at construction sites, objects to be transported such as window frame sashes, exterior wall tiles, interior materials, painting materials, etc. have been equipped with transport tools adapted to their forms and used appropriately to transport them. Furthermore, as wooden pillars are easily damaged, workers may have to carry them by hand, and large-volume air conditioning duct members and specially shaped window sashes must be carefully constructed to fit the shape. It was transported using a specially constructed trolley.

As a technology for a carrier that can be assembled according to the object to be transported, Patent Document 1 discloses a technology that allows a rectangular bottom frame member to be easily assembled using pipes. The conventional clamp fixing method used to fix pipes together has been replaced with a fixing mechanism equipped with a wedge mechanism. Specifically, the pipe is inserted into an outer pipe in which a U-shaped wedge sliding portion is formed, and by sliding the wedge, the pipe is pressed against the inner surface of the outer pipe and fixed. It is said that this allows the structure to be simple and inexpensive, and the rod-shaped body can be fixed and easily assembled into an assembly type trolley.

In the case of this technique, it is possible to easily assemble a rectangular bottom frame member with wheels located at the four corners of the bottom. However, the types of vehicles to which this technology can be applied are limited to vehicles that have wheels at the four corners. Transporters with wheels at the four corners not only tend to fall over if the lateral spacing between the wheels is narrow, but also become difficult to drive on uneven gravel surfaces, etc. Therefore, transporters with narrow widths are recommended depending on the object to be transported. The problem was that it was not possible to change the shape.

Patent Document 2 discloses a technology for a movable tile storage cart that can be easily assembled and disassembled according to various tile sizes even if it is a single unit. Previously, special trolleys were manufactured depending on the size of the tiles being transported, but in order to make it easier to assemble and disassemble as desired to accommodate a variety of tiles, we now construct support columns and beams using scaffolding pipes. It is said that they will be connected using pipe clamps. In the case of this technology, not only the bottom frame but also the vertical building frame are assembled using scaffolding pipes, but the problem is that the assembly is cumbersome because they are connected using pipe clamps.

Patent Document 3 discloses that the dimensions are changed according to the shape of the building materials to be loaded, and that existing scaffolding equipment is used as a member of the trolley, and the upper surface of the trolley is made flat, so that it can be used for objects larger than the trolley. Technology has been disclosed for a prefabricated trolley that is said to be able to carry objects. In the case of this technology, a pair of parallel beam members are made into expandable double pipes, and the pipes forming the girder members are spanned over the beam members by fixing them with pipe clamps, so that the size of the bottom surface can be changed freely. ing.

The length of the double pipe that forms the beam member must be changed by inserting bolts into desired positions of holes drilled at predetermined intervals and tightening the bolts. Furthermore, the length of the girder member must be changed by changing the position of the pipe clamp and tightening the bolts. There was a problem in that changing the length in both the beam direction and the girder direction required time and effort.

The technology of the carrier described in any of Patent Documents 1 to 3 can only change the size and shape of the bottom frame of the carrier. Therefore, if the lateral spacing between the wheels is narrowed, it becomes easier to fall over, and it becomes difficult to drive on uneven gravel surfaces, so there is a problem that it is not possible to change the shape to suit the object being transported.

Patent Document 4 discloses a cart technology in which three wheels are supported radially around a moving shaft at three equal intervals. According to this technology, when one wheel hits a vertical surface in a place with steps, such as stairs, the center axis of the three wheels rises, making it easier for the adjacent wheel to climb over the stairs. It is said to be easy to transport things. In the case of this cart, although it is suitable for transporting objects in places with steps, it cannot change its shape, so it has the problem that it can only transport objects of a predetermined size and shape.

Japanese Patent Application Publication No. 2000-335425 Japanese Patent Application Publication No. 2005-239107 Jito No. 3026095 Publication Utility Model Publication No. 7-42735

Therefore, the inventor of the present application used the constituent members of a "wedge tie type scaffold", which is a type of single-tube scaffold among the steel pipe scaffolds mainly used at construction sites, to An object of the present invention is to provide a wheel member and an assembly-type carrier that can be easily changed into various shapes and can be easily transported.

A first aspect of the present invention is a wheel member constituting a transportation tool, which includes a pair of wheels with the same diameter, a connecting member for pivotally supporting the pair of wheels, and a pair of protruding shaft members, wheels are arranged side by side at intervals so as to form the same axis, and the connecting member pivotally supports each of the wheels from outside the plane of the pair of wheels, and from the outer diameter of the pair of wheels. the pair of protruding shaft members is provided at an outer position with a portion forming a line parallel to the axes of the pair of wheels, and the pair of protruding shaft members extends circumferentially from the portion forming the parallel line to the center plane of the pair of wheels. A pair of rod members are provided symmetrically with respect to each other, and a pair of rod members can be fitted onto the pair of protruding shaft members.

The pole member is preferably a support of a wedge-type scaffolding member, but is not limited thereto. In the wheel member of the present invention, a pair of rod members can be fitted to a pair of protruding shaft members provided at a position outside the outer diameter of the wheel, and the pair of rod members is provided at a position outside the outer diameter of the wheel. It is on the outside and does not interfere with wheel rotation. Therefore, by fitting the rod members onto the pair of protruding shaft members and making the rod members horizontal, the upper surfaces of the pair of rod members can be used as a cargo receiving portion and used as a cart. Further, by keeping the rod member in an upright position and protruding the load receiving member laterally from the rod member, the load receiving member can be used as a cart for carrying objects.

If the wheel running surface is uneven, such as a gravel surface or a construction site, using pneumatic tires with a large outer diameter makes it easier to transport the vehicle even on uneven surfaces. In addition, since the pair of protruding shaft members are arranged symmetrically with respect to the center plane of the wheels, even if the distance between the wheels is narrow, it is easy to transport the product smoothly without losing balance.

By holding the pair of rod members in the left and right hands while the carrying tool is in an upright position, the carrying tool can be carried without falling over. By transporting the transport equipment in an upright position, long items such as dismantled "wedge-tie scaffolding" support members can be transported through narrow passageways. It is suitable for When transporting on a flat place or indoors with a low ceiling, the pair of rod members may be transported horizontally.

According to the carrier of the first invention, the shape and size of the surfaces formed by the pair of rod members are not restricted by the position and size of the wheels, and the pair of rod members can be arranged symmetrically and in a well-balanced manner. Regardless of whether the object to be transported is long or wide, the surface of the cargo receiving part can be easily changed to a surface that matches the shape of the object to be transported, and it is easy to transport, which is an advantageous effect that has not been seen before.

A second invention of the present invention is the wheel member of the first invention, wherein the pair of wheels are removably pivoted on the connection member, and the pair of wheels are disposed on the inner surface of the connection member. The wheels are removed and can be pivotally supported on the outer surface of the connecting member.

According to the second aspect of the invention, the wheels are removable and the positions of the wheels can be changed between the inner surface and the outer surface of the connecting member that pivotally supports the wheels. When transporting a wide object, the wheels may be pivotally supported on the outer surface of the connecting member, and the distance between the wheels may be widened to ensure stable transport. Further, in a narrow place, for example, in a passageway of a construction scaffold, the wheels may be pivotally supported on the inner surface of the connecting member, and the interval between the wheels may be narrowed to reduce the overall width of the carrier.

According to the wheel member of the second invention, the width of the wheel can be made either wide or narrow by changing the mounting position of the wheel of one wheel member depending on the transportation location and the transported object. Therefore, it has the effect of being highly versatile as a wheel member forming a transportation tool.

A third invention of the present invention is the wheel member according to the first or second invention, wherein the connecting member is arranged on a surface opposite to the wheel from which the pair of protruding shaft members extend. , the pair of insertion holes are open in the circumferential direction, and an insertion claw provided on the mounting member can be inserted into each of the pair of insertion holes. It is said that Here, the mounting member may be a cargo receiving plate, a cargo receiving fork, etc. that forms the cargo receiving portion.

A load receiving plate or a load receiving fork forming a load receiving portion is attached to the surface opposite to the wheels, that is, the surface in front of the wheels, and the load receiving plate or receiving fork is attached to the protruding shaft member. If a gripping member is provided, it can be used as a simple manual forklift. In addition, if there are two or more pairs of insertion holes on the front surface, a load receiving part is attached to one pair of insertion holes, and a device to prevent loads from shifting to the side is attached to the other pair of insertion holes, it is possible to easily and It becomes a transport tool that can be transported safely. According to the third aspect of the present invention, even one worker can easily and safely transport objects in an upright state.

A fourth invention of the present invention is the wheel member according to the third invention, comprising a second pair of protruding shaft members, the second pair of protruding shaft members having the same width as the pair of protruding shaft members. and are arranged symmetrically with respect to the center plane of the pair of wheels in a plane including the axes of the pair of wheels, and the rod member is fittable to the second pair of protruding shaft members. It is characterized by the presence of According to the fourth invention, by attaching the rod members to the two pairs of juxtaposed protruding shaft members, it is possible to obtain a highly strong carrier.

A fifth invention of the present invention is a carrier comprising the wheel member of the third invention or the fourth invention, a cargo receiving member, and a gripping member, wherein the cargo receiving member has a pair of insertion claws, The gripping member is inserted into the pair of insertion holes to form a cargo receiving part, and the gripping member includes a pair of rod members, a stopper member for the pair of rod members, and a pair of gripping members, and a plurality of gripping members are arranged around the pair of rod members. A pair of strut members made of wedge fastening type scaffolding members provided with insertion holes constitute the pair of pole members, and each claw part provided at both ends of the horizontal member of the wedge fastening type scaffolding member is connected to the pair of pole members. Each claw part provided at one end of the bracket member of the wedge fastening type scaffolding member is inserted into the opposite insertion hole of the support member to form the width stop member, and each claw part provided at one end of the bracket member of the wedge fastening type scaffold member is inserted into the pair of opposite fitting holes of the support part. The pair of support members are inserted into the insertion holes of the support members to form the pair of gripping members, the pair of support members are fitted onto the pair of protruding shaft members and extend above the wheels, and the load receiving portion is connected to the support members of the pair of support members. It is characterized in that it is protruded below one side of the member, and the pair of gripping members are protruded above the other side of the pair of support members.

According to the fifth invention, the support member of the "wedge fastening type scaffolding member" is a pole member that is inserted into the protruding shaft member, the horizontal member is a stopper member for the pair of pole members, and the bracket member is a gripping member. A carrying tool that is used in an upright position is assembled. The support member has insertion holes formed around the circumference at intervals of about 40 cm in the length direction, so horizontal members, brackets can be inserted into the insertion holes at positions suitable for the object to be transported, the place to transport it, and the manner in which the transport tool is used. By inserting the members, it is possible to create a carrier that is easy to use.

Not only can the constituent members of the wedge-tied scaffolding commonly used at construction sites be combined with the wheel members of the present invention to create a transport tool, but each constituent member can be adapted to suit the size and length of the object to be transported. They may be combined as a transportation device depending on the situation. Conventionally, different types of transport equipment have been used depending on the type of transport items such as window frame sashes and interior boards, but according to the fifth invention, a transport tool suitable for transporting materials for construction sites is used. It is possible to easily assemble a conveyor, which has the effect of reducing the number of types of conveyors at the site.

A sixth invention of the present invention is the carrier according to the fifth invention, characterized in that the cargo receiving member is a pair of elongated claw-like members. The elongated claw-like member forms a receiving fork of a forklift for transportation. According to the sixth invention, the receiving member is a member forming a receiving fork, and since the receiving member is divided, it is applicable to objects placed on uneven places, pallets, etc. that have receiving fork insertion holes. suitable for

A seventh invention of the present invention is the carrier according to the fifth or sixth invention, which includes a second wheel member having a mounting part, the mounting part being a shaft body, and one end of the shaft body. It has a claw part and a clamp part at the other end, the claw part is inserted into the insertion hole of the column member, the clamp part is fixed to the column member, and a second It is characterized in that wheel members are arranged so that the rod member can be transported in an obliquely inclined state.

According to the seventh invention, when the rod member is tilted diagonally, the pair of wheel members and the second wheel member are grounded, and the rod member does not fall down even if it is not gripped by the worker, and the rod member can be tilted diagonally. Since it can be carried in a tilted state by towing or pushing a cart, it has the effect of being suitable for transporting a long object in a state where it is lying on its side.

- According to the wheel member of the first aspect of the present invention, the shape and size of the surfaces formed by the pair of rod members are not restricted by the position and size of the wheel, and the pair of rod members can be symmetrically and well-balanced. This has the advantage of being easier than ever before in that it is easy to change the surface of the cargo receiving area to match the shape of the cargo, and it is also easy to transport, regardless of whether the cargo is long or wide. be effective.
- According to the wheel member of the second aspect of the present invention, the width of the wheel can be made either wide or narrow by changing the mounting position of the wheel of one wheel member depending on the transportation location and the transported object. Therefore, it has the effect of being highly versatile as a wheel member forming a transportation tool.
- According to the wheel member of the third aspect of the present invention, even one worker can easily and safely transport objects in an upright state.

- According to the wheel member of the fourth aspect of the present invention, by attaching a rod member to each of the two pairs of juxtaposed protruding shaft members, it is possible to obtain a highly strong transport tool.
- According to the carrying device of the fifth aspect of the present invention, the horizontal member and the bracket member are inserted into the insertion holes at positions suitable for the object to be transported, the place of transportation, and the manner in which the carrying tool is used, making transportation easy to use. It can be used as a tool.
- According to the carrying tool of the sixth aspect of the present invention, the cargo receiving member is a member forming a cargo receiving fork, and since the receiving member is divided, objects placed on an uneven place, cargo receiving fork insertion hole, etc. It is suitable for application to pallets etc. having
- According to the carrying tool of the seventh aspect of the present invention, when the rod member is tilted diagonally, the pair of wheel members and the second wheel member are grounded, and the rod member does not fall down even if it is not gripped by the worker. Since the rod member can be carried with the rod member tilted diagonally by towing or pushing the cart, it is suitable for carrying a long object in a state where it is lying on its side.

FIG. 2 is a perspective view illustrating a wheel member and a carrier 1 (Example 1). FIG. 2 is a perspective view illustrating a carrier 2 and a unit member (Example 2). FIG. 2 is a perspective view illustrating a carrier 2 (Example 2). Explanatory diagram of wheel members and carrier 3 (Example 3) FIG. 3 is a side view illustrating how the carrier 3 is used (Example 3). FIG. 4 is a side view illustrating the carrier 4 (Embodiment 4). FIG. 5 is a side view illustrating the carrier 5 (Example 5). An explanatory diagram of a unit member of a wedge fastening type scaffolding member.

A plurality of wheel members into which unit members (hereinafter referred to as unit members) of a wedge fastening type scaffolding member are inserted and a plurality of carriers including the wheel members will be described with reference to FIGS. 1 to 7. Several forms of wheel members are shown in FIGS. 1, 2, 4 and 7, and the vehicle is shown in FIGS. 2-7.

FIG. 1 shows a transportation device 1 in which only a wheel member 100 and a short support member 20 (hereinafter referred to as a support member) of a wedge-type scaffolding member are assembled. A small-sized carrier 2 is shown in which a member 300 and a plurality of types of unit members are assembled. 4 and 5 show a large-sized transport tool 3 assembled with a wheel member 400 and a plurality of types of unit members, FIG. 6 shows a transport tool 4 for transporting a long object in a lying state, and FIG. Here, a carrier 5 is shown which can be carried even in places with steps. FIG. 8 shows a unit member of a wedge fastening type scaffolding member.

In order to facilitate understanding, an example of a unit member of a wedge fastening type scaffolding member will be briefly described with reference to FIG. 8, but it goes without saying that the present invention is not limited to the following example. The main members of the unit member are two types of support members 10 and 20, two types of horizontal members 30 and 40, and a bracket member 50. The long support member 10 has a length of 1.8 m, and the short support member 20 has a length of 0.9 m. If the length of the long horizontal member 40 is such that the distance between the axes of the strut members is 0.6 m, and the length of the short horizontal member 30 is such that the distance between the axes of the strut members is between 0.3 m and 0.4 m, good. The bracket member 50 consists of a horizontal portion 51 and a diagonal portion 52, and the horizontal length of the horizontal portion is 0.6 m. The pin 60 is a retaining member inserted into the hole 61 of the support member.

Insertion holes 11 and 21, which are open along the longitudinal direction of the support member, are formed at 45 cm intervals on opposite sides of the support member. In FIG. 8, the hole is narrow at the bottom and wide at the top, but the hole is not limited to this (see FIG. 8(A)). Claw portions 31 and 41 extending downward are formed at both ends of the horizontal member. Although the tips of the claws 31 and 41 are formed to be thinner than the base, the present invention is not limited to this, and a fall-off prevention claw (not shown) may be formed at the tips of the claws.

The claws 31 and 41 of the horizontal member are inserted into the opposing insertion holes 11 and 21 of the two side-by-side support members, and the head is lightly hit with a hammer to tightly connect the support member and the horizontal member. The member is a width stop member. In the bracket member 50, claw portions 53 extending downward are formed at both ends of a horizontal portion 51, a diagonal portion 52 extends in one direction from an intermediate position of the horizontal portion 51, and an end of the diagonal portion 52 abuts on a support member. This prevents the bracket member 50 from tilting. In FIG. 8, the horizontal members 30, 40 and the support member to which the bracket member 50 is attached are shown by broken lines.

In Example 1, a first wheel member 100 (see FIG. 1(A)) and a second wheel member 200 (see FIG. 1(B)) will be described with reference to FIG. The third wheel member 300 will be described with reference to the third wheel member 300, the fourth wheel member 400 with reference to FIG. 4, and the fifth wheel member 500 with reference to FIG. In the first wheel member 100 (see FIG. 1A), the connecting member 110 is formed by welding a bar-shaped round steel tube so as to pivotally support a pair of wheels 120 from outside the plane of the wheels.

In the figure, the upper ends of a pair of round steel pipes 111, 111 extending from the outer surface of each wheel 120, 120 above the axis form a substantially U-shape in the horizontal direction above the outer diameter of the wheel 120. It is welded to the horizontal member 112. Above the axis of the wheel 120, the horizontal member 112 is welded and integrated with a second horizontal member 113 parallel to the axis to form the connecting member 110. In FIG. 1, an extended line of a portion parallel to the axes of the pair of wheels is indicated by a dashed line A.

Each of the pair of wheels 120, 120 is pivotally supported on the inner side of the connecting member 110, and each wheel 120, 120 can be individually pivoted. The wheels are approximately 40cm in diameter and equipped with pneumatic rubber tires, making it possible to transport it even on uneven roads. In the figure, from the sides of the horizontal member 112, a pair of protruding shaft members 114, 114 are formed symmetrically with respect to the center plane of the wheel along the running direction of the wheel. A hole 115 is formed at the base of each protruding shaft member, through which a pin 60 (see FIG. 2) that prevents the support member from falling out passes through the hole 61 of the support member when the support member is inserted. In the following embodiments as well, when a support member is inserted into the protruding shaft member 114, a pin 60 is inserted to prevent it from coming off, but this is omitted in the description of the following embodiments.

The second wheel member 200 (see FIG. 1(B)) consists of a plate material 201 forming the top surface and a plate material 202 forming the side surfaces, and a pair of protruding shaft members 203, 203 protrude laterally from the top surface. has been done. Of course, the second wheel member 200a may be formed by deforming only the plate material 202 forming the side surface of the second wheel member 200 as the shaft member 204. In the third wheel member 300 (see FIG. 2), the horizontal member 112 constituting the first wheel member is vertically erected, and a pair of second horizontal members 113 are attached to the second horizontal member 113 symmetrically with respect to the center plane of the wheel. In addition to providing insertion holes 116, 116, a third horizontal member 117 is welded to the lower end of the horizontal member in parallel to the second horizontal member. In detail, as will be described later, in the third wheel member 300, a pair of support members 20 are inserted into a pair of protruding shaft members 114, a receiving fork 70 is inserted into a pair of insertion holes 116, and a carrier It is said that

The fifth wheel member (see FIG. 7) 500 has a pair of wheels, each of which has three small wheels 501, 501, 501 pivoted at the apex of an equilateral triangle, and one of the three small wheels. It is said to be a wheel that does not touch the ground. In FIG. 7, the fifth wheel member 500 is a wheel member in which a pair of wheels are pivotally supported outside the surface of the connecting member 502, and the distance between the wheels is widened. The wheel member may have a narrower width by changing its position. Further, round steel pipes 503, 503 are provided at positions outside the outer diameter of the wheels (see the dashed line), and the round steel pipes have a pair of insertion holes 504. , 504 are provided.

In Example 2, a small-sized carrier 2 assembled by inserting and fitting a plurality of types of unit members will be described with reference to FIGS. 2 and 3. The transportation tool 2 includes a third wheel member 300, a pair of short support members 20, 20, one short horizontal member 30, a pair of bracket members 50, 50, and a pair of receiving forks 70, 70. (See Figure 2). Each of the short support members 20, 20 is inserted into each of the pair of protruding shaft members 114, 114 of the third wheel member.

Each of the cargo receiving forks 70, 70 has a substantially "L" shape, and each of the downwardly facing insertion claws 71 formed on the upper end of the vertical portion on the wheel side is inserted into the insertion hole 116 of the second horizontal member 113. The lower end wheel side of the hanging portion is supported by the third horizontal member 117 provided at the lower end of the support member and serves as a cargo receiving portion. The claw portions 31, 31 at both ends of the horizontal member are inserted into the opposing insertion holes 21, 21 located above the pair of support members, and the horizontal member 30 is used as a stop member. Further, the claw portions 53, 53 of the pair of bracket members are inserted into the pair of insertion holes 21a, 21a on the wheel side located above the pair of support members, and serve as gripping portions for the operator.

The conveyor 2 in an assembled state is shown in FIG. 3(A). Since the width of the transport equipment is approximately 60 cm and the height is approximately 1.3 m, it can be passed through even scaffolding paths at construction sites, and can be used during construction of fall prevention nets, exterior wall tiles, painting materials, etc. Suitable for horizontal movement of construction materials that are divided and used externally.

Each wheel 120, 120 is supported by a bolt shaft 121 from inside the connecting member 110 (see FIG. 3(A)). By unscrewing the bolt shaft 121 that supported the wheel and supporting the removed wheel 120 from the outer surface of the connecting member 110 using the bolt shaft 121, the distance between the wheels becomes wider, making it difficult for heavy objects to fall over. It is suitable for transporting items such as items (see Figure 3(B)). Since it can be transported in a stable state, it is suitable for transporting wide construction materials such as window sashes and interior boards inside buildings under construction.

If the carrier 2 is tilted toward the gripping part, the center of gravity of the load receiving part is taken as the load point, the contact surface of the wheel is taken as the fulcrum, and the position of the gripping part is taken as the point of action, then the distance from the load point to the fulcrum is Since the distance from the point of application to the fulcrum can be approximately tripled, heavy construction materials can be easily and safely transported even by one worker.

In the third embodiment, a fourth wheel member 400 and a large-sized carrier 3 will be described with reference to FIGS. 4 and 5. The fourth wheel member 400 (FIG. 4A) is located above a horizontal portion (see broken line A) that is parallel to the axis of the wheel and constitutes the connecting member 110 located on the outside of the wheel. A pair of protruding shaft members extend upward from the horizontal member 118 of the connecting member and the horizontal member 119 located above the axis of the wheel, respectively, in symmetrical positions with respect to the center plane of the wheel. . A front member 410 that forms an insertion hole is provided on the left side of the horizontal portion of the tube, and a plate member 420 that can be repositioned in the front-rear direction parallel to the front member is screwed below the front member. Further, a tiltable pedal 430 is attached to the outside of the shaft extending from the horizontal member 119 toward the axis of the wheel.

The long strut member 10 is inserted into the pair of protruding shaft members on the left side of the fourth wheel member 400, and the short strut member 20 is inserted into the pair of protruding shaft members on the right side (FIG. 4). B) See figure). The claw portions 31 of the horizontal members are inserted into the four insertion holes 11, 11, 21, 21 in which the four support members 10, 10, 20, 20 face each other in the upper and lower stages, respectively, so that the support members Strongly tied together. Bracket members 50, 50 are inserted into the insertion holes 21, 21 on the worker side of the short support members 20, 20, and serve as gripping parts for the worker. In addition, downwardly directed insertion claws 71, 71 formed on the upper end wheel side of the cargo receiving fork are inserted into a pair of insertion holes 116, 116 provided in a horizontal portion located below the elongated support member. When fitted, the lower part of the cargo receiving fork abuts the repositionable plate member 420, so that the warping angle of the tip of the receiving fork can be changed.

When transporting an object, for example, an object 91 loaded on a platform pallet 90, using the carrier 3, tilt the carrier slightly forward and insert the tips of the receiving forks 70, 70 into the front and rear through-holes of the platform pallet. to lift the cargo 91 together with the pallet (see FIG. 5(A)). Then, by tilting the pedal 430 horizontally and holding it down with the tip of your foot, and holding the upper part of the long support member 10 and tilting it toward the worker (see FIG. 5(B)), the support Since the member is long, the distance between the fulcrum, which is the position of the gripping part, and the point of action can be made larger than in the carrier 2. Then, the ratio of the distance between the fulcrum and the point of action to the distance between the load point and the fulcrum can be increased, and the burden on the worker is reduced (see FIG. 5(B)). After tilting the carrier so that it can be carried stably, the operator returns the pedal 430 to its original position and carries it more safely by grasping the pair of grips with both hands. .

In the fourth embodiment, referring to FIG. 6, a part of the unit member of the fourth wheel member 400 is omitted or changed, and an auxiliary wheel 130 and a bracket member are attached to a long object, such as stacked scaffolding boards ( A transport tool 4 suitable for transporting objects (see broken lines in FIG. 6(B)) will be described. In the carrying tool 4, the bracket members 50, 50 forming the gripping part of the carrying tool 3 are omitted, and only the horizontal members 30, 30, 30, 30 for tightly connecting the short and long support members are provided in the upper stage. In addition, as shown in the figure, an auxiliary wheel 130 is attached to the right side of the short support member 20, and bracket members 50, 50 for preventing the transported object from shifting are inserted into the left side of each long support member 10, and a cargo receiving The forks 70, 70 are changed to a plate-shaped cargo receiving plate 72.

The claw portions of the horizontal members are inserted into the four opposing insertion holes of the long support members 10, 10, and the plurality of inserted horizontal members are strung together in a four-stage ladder shape. The carrying tool 4 has a cargo receiving section and is suitable for carrying long objects in a horizontal position.

The auxiliary wheels 130 are smaller in diameter than the wheels 120 of the carrier so that the height is such that the worker can easily grasp the ends of the long support members 10, 10 when the carrier 4 is tilted diagonally. It is preferable to use wheels, but is not limited thereto. The auxiliary wheel 130 has a wheel shaft 131 pivotally supported at a position forming one apex of a triangle, a claw portion 132 formed at a position forming one apex, and a clamp fitting 133 formed at a position forming one apex. It is said to be an auxiliary wheel for tools.

The claw portion 132 of the auxiliary wheel is inserted into the insertion hole 21 of the short support member, and the clamp fitting 133 surrounds the short support member and is tightened and fixed by bolting. The auxiliary wheel 130 may be disposed on each of the pair of short strut members 20, 20, or may be disposed such that one wheel is located in the center of the pair of short strut members. If there is only one auxiliary wheel, it will be easier to change direction during transport, and if there are two auxiliary wheels, it will be possible to transport stably. Of course, the auxiliary wheels may be made of resin casters so that the direction can be changed around the vertical axis.

Referring to FIG. 7, in the fifth embodiment, three small wheels 501, 501, 501 are pivotally supported at the vertices of an equilateral triangle, and one of the three small wheels is A carrier 5 with wheels that are not grounded will be described. The carrier 5 is provided with a pair of left and right wheels 500, 500, which are pivotally supported by a connecting shaft so that the left and right wheels rotate synchronously. A connecting member 502 extends from the connecting shaft in the direction of the conveying surface, and is provided with a portion located outside the outer diameter of the wheels (see the dashed line) and parallel to the axes of the pair of wheels, and includes a pair of protruding shaft members. A connecting member 503 having a hole for inserting a pawl portion is provided so as to be symmetrical with respect to the center plane of the pair of wheels.

A pair of claw portions 73 of the load receiving plate 72 are inserted into each of the insertion holes 504 to form a load receiving portion. Further, a short support member 20 of the unit member is inserted into each of the pair of protruding shaft members, and a claw portion of the horizontal member of the unit member is inserted into the insertion hole on the surface where the short support members face each other. The nail part of the bracket member 50 is inserted into the insertion hole in the upper part of the wheel side surface of the short support member, and is used as a grip part for the worker and forms a carrying tool.

A broken line in FIG. 7 shows how the carrier of Example 5 is used to climb over a step at a work place. To get over the step, the worker pulls the carrier 5 backwards. First, the small wheel 501a closest to the worker hits the step 510 and cannot move backward. Centering on the rotation axis of the small wheel 501a, the carrier 5 is tilted backward and pulled up, and the small wheel 501b on the load receiving plate side that was in contact with the ground is lifted up and moved backwards, and the small wheel 501a located above and not in contact with the ground is moved back. The wheels 501c are brought into contact with the ground (see bold line arrows in FIG. 7). When the carrier 5 is pulled up and retreated, the two small wheels 501a and 501c come into contact with the ground, allowing stable transportation.

(others)
- Any number of unit members of the wedge fastening type scaffolding member may be used as a transportation device, and the transportation device specifically shown in the example is only an example of a transportation device whose shape can be changed, and other configurations can be added. It's okay. For example, it goes without saying that drive assisting means, braking means, shock absorbing means, etc. may be added.
- In the above embodiment, an example in which the wheel members are connected in series by a support member is shown in FIG. 1(B), but the support member may be omitted and transportation may be carried out using only the wheel members. If the strut members are omitted, it is easier to change direction by placing wheel members at one end and the other end of a long member, such as a bundle of reinforcing bars or a steel frame member. Suitable for horizontal movement within the site.

-Also, in order to transport a wide object, it goes without saying that the wheel members may be arranged in parallel and transported.
- The embodiments disclosed herein are illustrative in all respects and should not be considered restrictive. The technical scope of the present invention is not limited to the above description, but is indicated by the claims, and it is intended that all changes within the meaning and range equivalent to the claims are included.

1, 2, 3, 4, 5...carrier,
100, 200, 200a, 300, 400, 500...wheel member,
10, 20... Support member, 30, 40... Horizontal member, 50... Bracket member,
11, 21, 21a...insertion hole,
31, 41...Claw part, 51...Horizontal part, 52...Diagonal member part, 53...Claw part, 60...Pin,
112...Horizontal member, 113...Second horizontal member, 117...Third horizontal member,
110...Connecting member, 120...Wheel, 111...Round steel pipe, 114...Protruding shaft member,
115...hole, 116...insertion hole,
201, 202... plate material, 203... protruding shaft material, 204... shaft material,
70... Receiving fork, 71... Insertion claw, 72... Receiving plate, 73... Claw portion,
501, 501a, 501b, 501c...small wheels,
502... Connection member, 503... Round steel pipe, 504... Fitting hole,
90... Loading platform pallet, 91... Transported object, 119... Horizontal member, 121... Bolt shaft body,
410...front member, 420...plate material,
130... Auxiliary wheel, 131... Wheel axle, 132... Claw portion, 133... Clamp fitting,
500...Wheel, 502,503...Connecting member

Claims (9)

A wheel member constituting a transport device, which includes a pair of wheels with the same diameter, a connecting member that pivotally supports the pair of wheels, and a pair of protruding shaft members, the pair of wheels forming the same axis. The connecting members are arranged side by side at intervals, and the connecting member pivotally supports each of the wheels from outside the plane of the pair of wheels, and the connecting member is attached to the pair of wheels at a position outside the outer diameter of the wheels. The pair of protruding shaft members are provided symmetrically with respect to the center plane of the pair of wheels in a circumferential direction from the part forming the parallel line, and The rod member can be fitted onto the pair of protruding shaft members, and the connecting member includes a pair of round steel pipes extending above the shaft center from the outer surface of each of the pair of wheels, and an upper end portion of the pair of round steel pipes. a U-shaped horizontal member welded above the outer diameter of the pair of wheels; and an axial center welded and integrated with the horizontal member above the axial center of the pair of wheels. a second horizontal member parallel to , and the pair of protruding shaft members are formed on the sides of the horizontal member. The pair of wheels are removably supported on the coupling member, and the pair of wheels disposed on the inner surface of the coupling member can be removed and pivoted on the outer surface of the coupling member. The wheel member according to claim 1, characterized in that: . The connecting member is provided with at least a pair of insertion holes on a surface opposite to the wheel from which the pair of protruding shaft members extend, and each of the pair of insertion holes is open in the circumferential direction. 3. The wheel member according to claim 1, wherein an insertion claw provided on the mounting member can be inserted into the pair of insertion holes. A wheel member constituting a transport device, which includes a pair of wheels with the same diameter, a connecting member that pivotally supports the pair of wheels, and a pair of protruding shaft members, the pair of wheels forming the same axis. The connecting members are arranged side by side at intervals, and the connecting member pivotally supports each of the wheels from outside the plane of the pair of wheels, and the connecting member is attached to the pair of wheels at a position outside the outer diameter of the wheels. The pair of protruding shaft members are provided symmetrically with respect to the center plane of the pair of wheels in a circumferential direction from the part forming the parallel line, and The rod member is capable of being fitted into the pair of protruding shaft members, and the connecting member includes at least one pair of fitting holes on a surface opposite to the wheel from which the pair of protruding shaft members extend, A wheel member characterized in that the pair of insertion holes are open in the circumferential direction, and insertion claws provided on the mounting member can be inserted into each of the pair of insertion holes. The pair of wheels are removably supported on the coupling member, and the pair of wheels disposed on the inner surface of the coupling member can be removed and pivoted on the outer surface of the coupling member. 5. The wheel member according to claim 4, characterized in that: . A second pair of protruding shaft members are provided, the second pair of protruding shaft members are lined up with the same width as the pair of protruding shaft members, and the pair of protruding shaft members are arranged in a plane including the axes of the pair of wheels. According to any one of claims 3 to 5, the rod member is provided symmetrically with respect to the center plane of the wheel, and the rod member is fittable to the second pair of protruding shaft members. Wheel parts. 7. A carrier comprising a wheel member, a cargo receiving member, and a gripping member according to any one of claims 3 to 6, wherein the cargo receiving member has a pair of insertion claws, and the pair of insertion holes is inserted into the container to form a cargo receiving part, and the gripping member includes a pair of rod members, a stopper member for the pair of rod members, and a pair of gripping members, and has a plurality of insertion holes around the periphery. A pair of strut members made of wedge-bound scaffolding members constitute the pair of pole members, and each claw provided at both ends of the horizontal member of the wedge-bound scaffolding member is inserted into the opposite end of the pair of strut members. Each claw part, which is inserted into the hole and forms the width stop member, and which is provided at one end of the bracket member of the wedge fastening type scaffolding member, is inserted into the insertion hole of the pair of support members on the opposite side from the load receiving part. The pair of support members are fitted onto the pair of protruding shaft members and extend above the wheels, and the load receiving portion is attached to one side of the pair of support members. A carrying tool, characterized in that it is projected downward, and the pair of gripping members are projected above the other side of the pair of support members. 8. The carrier according to claim 7, wherein the cargo receiving member is a pair of elongated claw-like members. A second wheel member having a mounting portion, the mounting portion being a shaft body, a claw portion provided at one end of the shaft body, and a clamp portion provided at the other end, wherein the claw portion is used for inserting and fitting the support member. The rod member is inserted into the hole, the clamp portion is fixed to the support member, and a second wheel member is arranged in line with the wheel member, so that the rod member can be transported in an obliquely inclined state. The carrier according to claim 7 or 8, characterized in that:

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