JP7318484B2 - Transport aids and transport containers - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transport container capable of storing and transporting articles and a transport aid that assists transport of the container.

Conventionally, there is a container having wheels at a biased position on the bottom (see Patent Document 1, for example). This type of container can be transported using wheels by gripping the projection provided on the top and tilting the container so that it is supported by the wheels.

Japanese Utility Model Laid-Open No. 59-45051

However, in the case of such a container, the user has to support part of the weight of the container during transportation via the projection provided on the container, which may increase the burden on the user. . In addition, if the container is so heavy that it is difficult to support it, or if it becomes impossible to support it due to fatigue or the like, there is a risk that the container will tip over.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a transport container that can be tilted forward with a simple operation and that can stand stably on its own when erected and when tilted forward.

Further, the present invention is a conveying aid for assisting the conveying of a container having wheels attached to it that is biased toward the front. An object of the present invention is to provide a carrier aid that can stand on its own.

In order to achieve the above object, the transport aid of the present invention is a transport aid for assisting transport of a container having wheels arranged biased toward the front side, comprising: a main body attached to the container; an auxiliary leg portion pivotally supported by a swing shaft portion on the upper front side of the main body portion and extending downward from the swing shaft portion so that the lower end portion can swing between an open state and a closed state; An auxiliary wheel provided at the lower end of the auxiliary leg, and an auxiliary leg connecting the main body and the auxiliary leg below the swing shaft and formed so as to be foldable at an intermediate portion to control the opening range of the auxiliary leg. and a leg limiter for limiting. The body portion has a side support portion which is arranged on the side surface side of the container and whose lower end portion is capable of contacting the floor surface, and when the container is placed upright in the vertical direction, the side support portion When the lower end portion contacts the floor surface, the auxiliary wheel separates from the floor surface, the container is tilted forward, and the auxiliary leg portion is in the open state, so that the lower end portion of the side support portion is brought into contact with the floor surface. The container is transportably supported by the wheels and the auxiliary wheels away from the container.

By configuring in this way, the container can be maintained in a stable state in both the standing state in which the container is erected and the state in which the container is tilted forward. When the container is tilted forward, the wheels and auxiliary wheels support the total weight of the container, including the contents.

In addition, in the upright container, the lower end of the transport aid comes into contact with the floor outside the side of the container. Therefore, the container is less likely to tilt to the side, and this also allows the container to be stably maintained in an upright position.

In the above configuration, the container has a lid portion that is pivotally supported by a pivot shaft portion to open and close an upper opening, and the main body portion includes a frame portion that surrounds the container and a front side of the frame portion. an arm portion extending upward and attached to the pivot shaft portion, and the side support portion may extend downward from the side surface side of the frame portion.

In the above configuration, the main body may be provided with a lower pressing portion that is arranged below the frame portion, connects the side support portions, and is capable of coming into contact with the back surface of the container.

In the above configuration, the leg opening restricting portion may be folded by folding upward so that the auxiliary leg portion can be maintained in a maximum open state while the bottom surface of the container is in contact with the ground.

In the above configuration, the leg opening restricting portion is folded by being bent downward, and the intermediate portion of the leg opening restricting portion contacts the floor surface before the container is tilted and the auxiliary wheels contact the floor surface. However, when the auxiliary wheels come into contact with the floor surface, they may be separated from the floor surface.

In the above configuration, the auxiliary leg portion has an auxiliary wheel support portion that supports the auxiliary wheel, and the lower end portion of the auxiliary leg portion is placed in a state farthest away from the main body portion so that the container is tilted forward to allow the container to move forward. The training wheel support may be perpendicular to the floor when the training wheels are in contact with the floor.

The above configuration may have a grasping portion rotatably supported by the main body portion or the container about a rotation shaft parallel to the swing shaft portion.

In the above configuration, a first engaging portion provided in the grip portion and a second engaging portion provided on the back side of the main body portion are provided, and the plurality of containers tilted forward are attached to the first engaging portion. and the second engaging portion.

According to the transport container of the present invention, it can be tilted forward with a simple operation, and it can stand stably on its own when it is erected and when it is tilted forward.

In addition, according to the carrying aid of the present invention, it is possible to assist the carrying of a container on which the wheels are attached so as to be biased toward the front, to allow the container to be tilted forward with a simple operation, and to stabilize the container when standing and tilting forward. can stand on its own.

FIG. 4 is a side view showing the upright state of the transport container according to the present invention; FIG. 4 is a front view of the transport container in an upright state; FIG. 4 is a side view of the transport container in a forward tilted state; It is a schematic perspective view of a container. FIG. 11 is a side view of the transport container A having a modified example of the sub gripper; It is a schematic perspective view of a 1st engaging part and a 2nd engaging part. FIG. 11 is a side view of the transport container when the intermediate shaft portion of the leg opening limiter comes into contact with the floor while the transport container is being tilted forward from the upright state to the forward tilting state; FIG. 10 is a side view of the transport container when the training wheels come into contact with the floor while the transport container is being tilted forward from the upright state to the forward tilting state; It is the side view which expanded the damping|braking part of a conveyance container. FIG. 4 is an enlarged side view of a state in which a braking portion of the conveying container is actuated; FIG. 11 is an enlarged side view of a forward tilting state of a transport container having a braking portion; It is a side view of the state which connected two conveyance containers in the front-back direction. It is a side view of the modification of a conveyance container.

Embodiments of the present invention will be described below with reference to the drawings. In this document, up and down are defined based on the direction of gravity. Further, when the transport container A is standing upright, the front surface of the transport container A in the transport direction is defined as the "front surface" or the "front surface". Also, the rear surface is defined as "rear surface" or "back surface". The surfaces adjacent to the front surface and the rear surface are defined as "side surfaces", and the direction along the floor surface FL and orthogonal to the "front-rear direction" is defined as the "left-right direction".

<Conveyance container A>
FIG. 1 is a side view showing a standing state St1 of a transport container A according to the present invention. FIG. 2 is a front view of the transport container in the standing state St1. FIG. 3 is a side view of the transport container A in the forward tilting state St2. FIG. 4 is a schematic perspective view of the container 100. FIG. Note that FIG. 4 shows a schematic shape of the container 100, and illustration of a lid portion 103, a pivot shaft portion 108, etc., which will be described later, is omitted.
As shown in FIGS. 1 to 3, the transport container A includes a container 100 and a transport aid 200. As shown in FIGS. The conveying container A has a standing state St1 in which the bottom surface 109 of the container 100 is brought into contact with the floor surface and the container 100 is erected, and a forward tilting state St2 in which the container 100 is tilted to the front surface 105 side. can be changed. The forward tilting angle of the forward tilting state St2 of the transporting container A is an angle at which the transporting container A does not return to the upright state St1 due to the weight of the transporting container A including the contents Pr.

In the standing state St1, the container 100 can stand on its own, and the transport aid 200 is held by the container 100. As shown in FIG. In addition, in the forward tilting state St2, the transport aid 200 supports the container 100 so that the container 100 is maintained forward tilted at a constant angle. Specific configurations of the container 100 and the transportation aid 200 will be described below.

<Container 100>
The container 100 has a cylindrical shape with a bottom, and has an upper opening 101 at the upper end. The container 100 also includes wheels 102 , a lid portion 103 and a partition portion 104 .

The wheels 102 are biased toward the front side of the bottom of the container 100 in the conveying direction. The wheels 102 are rotatable around axles extending in the left-right direction. The container 100 can be tilted toward the front surface 105 about the axle of the wheel 102 by pulling the upper portion toward the front surface 105 while the rotation of the wheel 102 is suppressed, that is, tilts forward about the axle. Then, the bottom surface 109 is separated from the floor surface FL by tilting the container 100 forward.

In the forward tilted state, the container 100 is supported by the wheels 102 and can be transported in the front-rear direction by the rotation of the wheels 102 . In this embodiment, the container 100, that is, the transport container A is transported to the front surface 105 side.

The lid portion 103 is arranged at the upper end of the container 100 so as to open and close the upper opening 101 . The lid portion 103 includes pivot ribs 1031 that are externally fitted onto the pivot shaft portion 108 arranged at the upper end of the front surface 105 of the container 100 . The lid portion 103 is rotatable in the front-rear direction around the pivot shaft portion 108 above the pivot shaft portion 108 . The pivot shaft portion 108 has a columnar shape extending parallel to the axle of the wheel 102 . The pivot shaft portion 108 may be the same member as the container 100 , or may be a member formed of a member different from the container 100 and attached to the container 100 .

The top opening 101 is opened by rotating the lid portion 103 forward. Conversely, the lid portion 103 is closed by rotating backward about the pivot shaft portion 108 . The arm portion 13 of the body portion 1 and the grip portion 5 described later are attached to the pivot shaft portion 108 . The pivot shaft portion 108 has strength capable of receiving forces acting on the main body portion 1 and the grip portion 5 .

As shown in FIG. 4, the container 100 has an internal space S that can accommodate the content Pr. The object Pr accommodated in the internal space S is, for example, a long object Pr formed by rolling a sheet of a predetermined width. Inside the internal space S, a partition portion 104 is provided below the top opening 101 in the upright state.

The partition part 104 divides the internal space S into the front-rear direction and the left-right direction perpendicular to the front-rear direction. When the objects Pr are accommodated in the internal space S, the objects Pr are accommodated one by one in each region partitioned by the partition portion 104 . In this way, by storing one item Pr in each region, contact between items Pr can be suppressed.

More specifically, the partition member 104 is arranged above the center in the longitudinal direction of the stored object Pr in the upright state and in contact with the lower end of the object Pr. By arranging the partition member 104 in this way, in both the upright state and the forward tilted state, the upper portion of the content Pr that contacts the partition member 104 is shorter than the lower portion. As a result, in the upright state and the forward tilting state, it is difficult for excessive force to act on the portion of the article Pr that contacts the partition member 104, and it is possible to reduce the burden during the storage and transportation of the article Pr. . In addition, when there is no problem even if the objects Pr come into contact with each other, a plurality of objects Pr may be accommodated in each area partitioned by the partition portion 104 .

Partition 104 may be flexible. Thereby, when the container 100 is tilted forward, the load on the content Pr can be suppressed by supporting the content Pr stored in the internal space S while being deformed. Furthermore, the partition part 104 may have a shape that can be elastically deformed. By doing so, even when vibrations, shocks, and the like act on the content Pr housed in the internal space S of the container 100, deformation, damage, and the like of the content Pr can be suppressed.

<Conveyance aid 200>
The carrying aid 200 is attached to the container 100 . The transport aid 200 transportably supports the container 100 in the forward-tilted state St2 tilted forward at a certain angle. That is, the transport aid 200 supports transport of the container 100 by supporting the weight of the container 100 and the object Pr housed in the container 100 . The details of the carrying aid 200 will be described below with reference to the drawings.

As shown in FIG. 1, FIG. , and a sub gripper 7 . The transportation aid 200 shown in this embodiment is formed by combining pipes. A rotary joint and a fixed joint are used as joints between pipes.

A rotary joint is provided at the axial end of one of the pipes, and has a tubular portion into which the pipe to be joined is rotatably or turnably inserted. A fixed joint secures the two pipes to be joined together. Incidentally, the joining of the pipes is not limited to this configuration, and a wide range of rotatably joining configurations and fixed configurations can be employed.

In the following description, when each member is referred to as being rotatably or rotatably joined or supported, a rotatable joint is used. Moreover, when each member is said to be fixed, it is fixed by a fixed joint.

<Body part 1>
The body portion 1 includes a frame portion 11, a swing shaft portion 12, an arm portion 13, a side support portion 14, a holding shaft portion 15, a base portion 16, a lower pressing portion 181, and a bottom connecting portion 182. And prepare. The frame portion 11 includes a front frame portion 111 , a rear frame portion 112 and two horizontal frame portions 113 . Each of the front frame portion 111, the rear frame portion 112 and the two lateral frame portions 113 is a pipe. By fixing the horizontal frame portions 113 to both the left and right ends of the front frame portion 111 and the rear frame portion 112, they are formed in a rectangular shape. In addition, in the present embodiment, the frame portion 11 is formed by combining pipes, but is not limited to this.

In the frame portion 11, the front frame portion 111 surrounds the front surface 105 of the container 100, the rear frame portion 112 surrounds the back surface 106 of the container 100, and the two lateral frame portions 113 surround the side surfaces 107 of the container 100, respectively. At least the rear frame portion 112 of the frame portion 11 contacts the rear surface 106 of the container 100 . However, the present invention is not limited to this, and the front frame portion 111 and the front surface 105 of the container 100 may further contact each other, or at least one of the two lateral frame portions 113 may further contact one of the side surfaces 107 of the container. good too.

The swing shaft portion 12 is arranged forward of the frame portion 11 on the front frame portion 111 side and fixed to the front frame portion 111 of the frame portion 11 . The swing shaft portion 12 extends parallel to the axle of the wheel 102 . The swing shaft portion 12 is also formed of a pipe. Note that the swing shaft portion 12 may be the same as the pipe that constitutes the front frame portion 111 . The auxiliary leg portion 2 is attached to the swing shaft portion 12 so as to be swingable. Details of the auxiliary leg 2 will be described later.

Arm portion 13 is fixed to front frame portion 111 of frame portion 11 . Arm portion 13 extends upward from front frame portion 111 of frame portion 11 . That is, the arm portion 13 extends upward from the front frame portion 111 of the main body portion 1 . The upper end of the arm portion 13 is rotatably supported by the pivot shaft portion 108 of the container 100 . Thereby, the body part 1 is attached to the container 100 .

The side support portion 14 is formed of a pipe. The side supports 14 are arranged outside both the left and right side surfaces 107 of the container 100 and extend vertically along the side surfaces 107 . The side support portions 14 extend downward from the side surfaces of the frame portion 11 . The side support portion 14 has a front support portion 141 , a rear support portion 142 , a floor contact portion 143 and a support connection portion 144 .

Two front support portions 141 are provided on the side support portion 14 and form a pair on the left and right. Each front support portion 141 extends downward from each lateral end portion of the front frame portion 111 of the frame portion 11 . The front support 141 is arranged along the side 107 of the container 100 . In addition, in the main body portion 1 of the present embodiment, the front support portion 141 extends vertically downward from the front frame portion 111 of the frame portion 11 . The lower end of the front support portion 141 is located above the upper end of the wheel 102 .

Two rear support portions 142 are provided on the side support portion 14 and form a pair on the left and right. Each rear support portion 142 extends downward from each lateral end of the rear frame portion 112 of the frame portion 11 . A rear support 142 is positioned along the side 107 of the container 100 . In addition, in the main body portion 1 of the present embodiment, the lower end of the rear support portion 142 is arranged below the lower end of the front support portion 141 .

In the standing state St1, the floor contact portion 143 is arranged to contact the floor surface and extend back and forth along the floor surface. The floor contact portion 143 is arranged behind the wheel 102 . The floor contact portion 143 is arranged outside the container 100 in the left-right direction. A lower end of the rear support portion 142 is fixed to a rear end portion of the floor contact portion 143 .

The support connection portion 144 connects the lower end portion of the front support portion 141 and the front end portion of the floor contact portion 143 . The support link 144 is of curved shape and is positioned behind and above the wheel 102 . In this embodiment, the support connecting portion 144 has a shape in which two pipes are perpendicular to each other. However, it is not limited to this. For example, a shape that intersects at an angle different from orthogonal, a shape in which three or more pipes are connected so as to bend, a shape that is curved according to the wheel 102, or a shape that can connect the front support portion 141 and the floor contact portion 143. Therefore, a shape that avoids contact with the wheel 102 can be widely adopted. Since the support connecting portion 144 has such a shape as to avoid contact with the wheel 102, the wheel 102 can rotate stably and smoothly.

As mentioned above, the lateral supports 14 are located outside both the left and right sides 107 of the container 100 . That is, the carrying aid 200 is provided with a pair of lateral support portions 14 arranged outside both the left and right side surfaces 107 of the container 100 . Each of the pair of lateral support portions 14 is a mirror image of the other.

The holding shaft portion 15 is formed of a pipe, and both ends of the holding shaft portion 15 are fixed to the lower portions of the front support portions 141 of the pair of side support portions 14, respectively. The holding shaft portion 15 extends parallel to the axle of the wheel 102 and connects the two front support portions 141 . A later-described first connecting rod portion 41 of the leg opening restricting portion 4 is rotatably attached to the holding shaft portion 15 . The details of the leg opening limiter 4 will be described later.

The pedestal portion 16 extends upward from both ends of the front frame portion 111 of the frame portion 11 . The pedestal portion 16 is used as a pedestal for supporting the sub-grip portion 7 . The details of the pedestal portion 16 will be described later.

The lower pressing portion 181 is formed of a pipe, and both ends of the lower pressing portion 181 are fixed to the lower portions of the rear support portions 142 of the pair of side support portions 14, respectively. The lower holding portion 181 extends parallel to the axle of the wheel 102 and connects the two rear support portions 142 .

The bottom connection portion 182 is formed of a pipe, and both ends of the bottom connection portion 182 are fixed to the floor contact portions 143 of the pair of side support portions 14 respectively. A bottom connecting portion 182 extends parallel to the axle of the wheel 102 and connects the two floor contacting portions 143 . At least in the upright state St1, the bottom surface 109 of the container 100 is placed on top of the bottom connecting portion 182 . If the holding shaft portion 15 and the lower pressing portion 181 can firmly connect the pair of side support portions 14, the bottom connecting portion 182 may be omitted. In this case, when the transport container A is in the standing state St1, the bottom surface 109 of the container 100 may directly contact the floor surface FL.

In addition, in this embodiment, although the main-body part 1 is formed by combining several pipes, it is not limited to this. For example, a plate material, a bar material, or the like may be used.

<Auxiliary leg 2>
The auxiliary legs 2 are formed of pipes and attached to the main body 1 in pairs on the left and right. The pair of auxiliary leg portions 2 are rotatably supported side by side in the left-right direction on the swing shaft portion 12 of the main body portion 1 . The auxiliary leg portion 2 extends downward from the swing shaft portion 12 . The pair of auxiliary legs 2 has a closed state Sc (see FIGS. 1, 2, etc.) in which the lower ends are close to the front surface 105 of the container 100, and an open state Sp (see FIG. 3), in which the lower ends are farthest from the front surface 105. It is possible to swing to In the present embodiment, the auxiliary leg portion 2 is formed of a pipe, but is not limited to this. good too.

An auxiliary wheel support portion 21 that rotatably supports the auxiliary wheel 3 is provided at the tip of each of the pair of auxiliary leg portions 2 . The auxiliary wheel support portion 21 includes a pipe, and the auxiliary wheel support portion 21 is fixed to the auxiliary leg portion 2 .

When the transport container A is in the forward tilting state St2 (see FIG. 3), the auxiliary legs 2 are in the open state Sp. The auxiliary wheel support portion 21 is fixed to the auxiliary leg portion 2 so as to be orthogonal to the floor FL when the transport container A is in the forward tilting state St2 and the auxiliary leg portion 2 is in the opened state Sp. The training wheel support portion 21 supports the training wheel 3 rotatably about an axis extending along the floor FL, and supports the training wheel 3 movably about an axis perpendicular to the floor FL. Next, the training wheel 3 will be explained.

The training wheels 3 are attached to each of the pair of training legs 2 via training wheel supports 21 . That is, the auxiliary wheels 3 are provided on each auxiliary leg 2 to form a pair. The auxiliary wheels 3 support the transport container A when the transport container A is in the forward tilting state St2. The container 100 is supported by a pair of wheels 102 in the forward tilting state St2. That is, the transport container A is supported on the floor FL by the wheels 102 and the auxiliary wheels 3 . As the wheels 102 and the auxiliary wheels 3 rotate, the transport container A is transported.

During transportation, the training wheel 3 is movable around an axis orthogonal to the floor surface FL by the training wheel support portion 21 . When the transport container A is transported, the direction in which the transport container A is transported can be easily changed by rotating the auxiliary wheels 3 around an axis orthogonal to the floor surface FL. That is, the conveying container A can easily turn in a small radius.

In this embodiment, the carrying aid 200 includes two training wheels 3, but is not limited to this. For example, the number of auxiliary wheels 3 may be one, or three or more. The number of the auxiliary wheels 3 is not particularly limited as long as the transport container A can be supported by the wheels 102 and the auxiliary wheels 3 in the forward tilting state St2. When the total weight of the transport container A is heavy, such as when the transport container A has a large weight of the contents Pr to be transported or a large amount of transport, at least two auxiliary wheels 3 are provided in order to stably support the transport container A. It is preferable to have

By tilting the transport container A forward, the auxiliary leg 2 moves from the closed state Sc to the open state Sp. The auxiliary wheel 3 comes into contact with the floor FL while the auxiliary leg 2 swings from the closed state Sc to the open state Sp. The auxiliary leg portion 2 and the auxiliary wheel support portion 21 have a shape and size that allow the auxiliary wheel 3 to come into contact with the floor FL.

The leg opening limiter 4 limits swinging of the auxiliary leg 2 . The leg opening limiter 4 is formed by combining pipes, but is not limited to this. The leg opening restricting portion 4 includes two first connecting rod portions 41 , two second connecting rod portions 42 , a connecting shaft portion 43 and an intermediate shaft portion 44 .

The two first connecting rod portions 41 are rotatably attached to the holding shaft portion 15 while being separated from each other in the left-right direction. The intermediate shaft portion 44 is parallel to the axle of the wheel 102 and has two first connecting rod portions 41 fixed to both ends in the left-right direction.

The connecting shaft portion 43 is parallel to the axle of the wheel 102 and fixed to each of the two auxiliary leg portions 2 at both ends. That is, the connecting shaft portion 43 connects the two auxiliary leg portions 2 so that they can swing together.

The two second connecting rod portions 42 are arranged parallel to each other. One ends of the two second connecting rod portions 42 are rotatably attached to the connecting shaft portion 43 . The other ends of the two second connecting rod portions 42 are rotatably attached to the intermediate shaft portion 44 . That is, the first connecting rod portion 41 and the second connecting rod portion 42 of the leg opening restricting portion 4 are rotatable with respect to each other about the intermediate shaft portion 44 .

The leg opening limiter 4 constitutes a link mechanism interlocking with the movement of the auxiliary leg 2 . That is, when the auxiliary leg portion 2 moves to the closed state Sc, the first connecting rod portion 41 rotates downward around the holding shaft portion 15 . Also, the second connecting rod portion 42 rotates downward around the connecting shaft portion 43 . As a result, when the auxiliary leg portion 2 moves in the closing direction, the leg opening restricting portion 4 is folded by bending the intermediate shaft portion 44 downward.

Similarly, when the auxiliary leg portion 2 moves to the open state Sp, the connecting shaft portion 43 fixed to the auxiliary leg portion 2 moves away from the holding shaft portion 15 . As a result, the second connecting rod portion 42 rotatably attached to the connecting shaft portion 43 is pulled, and the first connecting rod portion 41 is also pulled via the intermediate shaft portion 44 .

As a result, the first connecting rod portion 41 rotates around the holding shaft portion 15 . When viewed from the side, the first connecting rod portion 41 and the second connecting rod portion 42 are arranged on a straight line, so that the holding shaft portion 15 and the connecting shaft portion 43 in the leg opening restricting portion 4 the longest distance. That is, when the first connecting rod portion 41 and the second connecting rod portion 42 of the leg opening restricting portion 4 are arranged on a straight line, the auxiliary leg portion 2 is positioned in the opened state Sp.

<Gripping part 5, sub-gripping part 7>
The grip part 5 is formed of a pipe, but is not limited to this. As shown in FIGS. 1 and 2 , the gripping portion 5 includes two gripping arm portions 51 and a gripping arm connecting portion 52 . The two gripping arms 51 are arranged side by side in the lateral direction. One end of each of the two gripping arms 51 is rotatably attached to the pivot shaft 108 .

The gripping arm connecting portion 52 is formed of a pipe, but is not limited to this. Both ends of the gripping arm connecting portion 52 are respectively fixed to the two gripping arms 51 . That is, the gripping arm connecting portion 52 connects the gripping arm portion 51 . The grasping portion 5 rotates around the pivot shaft portion 108 . That is, the pivot shaft portion 108 is a rotating shaft that rotatably supports the grip portion 5 .

In the carrying aid 200 of the present embodiment, the grasping portion 5 is attached to the pivot shaft portion 108, but the present invention is not limited to this. For example, the rocking shaft portion 12 or the like may be rotatably attached to the transportation aid 200 or may be rotatably attached to another location of the container 100 . The gripping portion 5 can be attached to a rotatably attachable member parallel to the swing shaft portion 12 . The gripping portion 5 is used to pull the transport container A in the forward tilting state St2 and to connect a plurality of transport containers A. As shown in FIG. Therefore, it is preferable that the gripper 5 is arranged above the transport container A. As shown in FIG.

As shown in FIG. 1 and the like, the body portion 1 includes an interlocking portion 19 that interlocks the auxiliary leg portion 2 and the grip portion 5 . The interlocking portion 19 moves the auxiliary leg portion 2 from the closed state Sc to the open state Sp along with the rotation of the grip portion 5 at least when the grip portion 5 is rotated upward from the state in which it hangs down from the pivot shaft portion 108 . swing toward.

The interlocking portion 19 includes a first engaging portion 191 , a second engaging portion 192 , and an interlocking connecting portion 193 . The first engaging portion 191 is ring-shaped and attached to the grip portion 5 . The second engaging portion 192 has a ring shape similar to the first engaging portion 191 and is attached to the auxiliary leg portion 2 . In the interlocking portion 19, the interlocking connecting portion 193 is string-like. One end of the interlocking connecting portion 193 is tied to and engaged with the first engaging portion 191 , and the other end of the interlocking connecting portion 193 is tied to and engaged with the second engaging portion 192 . Although the interlocking connecting portion 193 is engaged with the first engaging portion 191 and the second engaging portion 192 by tying, the present invention is not limited to this, and may be connected by a method other than tying. good too.

As the grip portion 5 rotates, the auxiliary leg portion 2 swings toward the opened state Sp direction via the interlocking connection portion 193 of the interlocking portion 19 . As a result, when changing the state of the transport container A from the upright state St1 to the forward tilting state St2, the auxiliary legs 2 can be swung at a swing angle necessary for the forward tilting state St2.

The interlocking connecting portion 193 can swing the auxiliary leg portion 2 toward the open state Sp when the grip portion 5 is rotated upward. Further, when the gripping portion 5 is rotated to the highest position, the auxiliary leg portion 2 is configured to swing at a certain amount. In addition, the interlocking|linkage connection part 193 is not limited to string shape.

The interlocking connecting part 193 has an extendable structure. The interlocking connecting portion 193 causes the auxiliary leg portion 2 to swing when the grip portion 5 rotates, and does not loosen when the grip portion 5 rotates. By doing so, the interlocking connecting portion 193 is prevented from becoming entangled with other parts of the transportation aid 200 . Further, when the auxiliary leg portion 2 swings due to the forward inclination of the conveying container A, and the auxiliary wheel 3 contacts the floor FL forward of the swing shaft portion 12, the interlocking portion 19 is omitted. may

The sub-gripping portions 7 are provided in pairs on each of the left and right ends of the frame portion 11 . The sub-grip portion 7 is attached to the upper end of the pedestal portion 16 extending upward from the front frame portion 111 . The upper end of the pedestal portion 16 is formed into a curved surface, and the sub-grip portion 7 is attached to the upper end of the pedestal portion 16 with a universal joint.

Here, the universal joint includes all joints that join the sub-grip portion 7 to the pedestal portion 16 so that the angle of the sub-grip portion 7 with respect to the pedestal portion 16 can be freely changed. The sub gripper 7 is mainly used for tilting the transport container A, such as moving the transport container A from the standing state St1 to the forward tilting state St2 or from the forward tilting state St2 to the standing state St1. By providing the sub-gripping portion 7, the user can tilt the transport container A safely.

In this embodiment, the sub-grip part 7 is attached to the pedestal part 16 extending upward from the front frame part 111, but is not limited to this. It may be used for the main body 1 and the container 100 as long as it can be used for tilting the container 100 . FIG. 5 is a side view of a transport container A with a modification of the sub gripper. As shown in FIG. 5 , the carrying aid 200 may include a sub-grip portion 70 attached to the lateral support portion 14 .

As shown in FIG. 5, the sub-grip parts 70 are a pair of rod-like members attached to the front side of the front support parts 141 arranged on both left and right sides so as to be vertically rotatable. A connecting member 701 that connects the tips of the pair of sub-gripping portions 70 is provided. By providing such a sub-gripping portion 70 , the user can tilt the transport container A by gripping the connecting member 701 .

In addition, the connecting portions between the sub-grip portions 7 and 70 and the main body portion 1 serve as power points for applying force to the main body portion 1 . Further, in the tilting operation for rotating the conveying container A around the axle of the wheel 102, it is preferable that the point of force be at a position as high as possible. That is, regardless of the configuration, it is preferable that the portions of the sub-grip portions 7 and 70 that are joined to the main body portion 1 are higher. Further, if the structure allows the transport container A to be tilted using the gripping portion 5, the sub-gripping portions 7 and 70 may be omitted. Although specific shapes of the sub gripping portions 7 and 70 have been described, the present invention is not limited to these, and a structure that allows a user to grip and tilt the conveying container A safely and easily can be widely used. can be adopted. In the following description, it is assumed that the configuration using the sub-grip portion 7 is used.

<Engaging portion 6>
FIG. 6 is a schematic perspective view of a first engaging portion and a second engaging portion. As shown in FIGS. 1, 3, 6, etc., the engaging portion 6 has a first engaging portion 61 and a second engaging portion 62. As shown in FIG. The first engaging portion 61 and the second engaging portion 62 are configured to be engaged and separated by a simple operation. As for the first engaging portion 61 and the second engaging portion 62, for example, the first engaging portion 61 is an annular member. The second engaging portion 62 has a hook shape, is arranged to close the open portion of the hook, and includes an elastically deformable elastic member 621 inside. By pressing the first engaging portion 61 against the elastic member 621 of the second engaging portion 62, the first engaging portion 61 and the second engaging portion 62 are engaged. The configuration of the first engaging portion 61 and the second engaging portion 62 is an example, and other configurations may be used.

The first engaging portion 61 and the second engaging portion 62 are members for respectively connecting a plurality of transport containers A arranged in the front-rear direction. Therefore, the first engaging portion 61 and the second engaging portion 62 included in one transport container A are not engaged.

<Tilting operation of transport container A>
The configuration of the transport container A is as described above. Next, a procedure for operating the transport container A will be described with reference to the drawings. FIG. 7 is a side view of the transport container A when the intermediate shaft portion 44 of the leg opening limiter 4 comes into contact with the floor while the transport container A is tilted forward from the standing state St1 to the forward tilting state St2. FIG. 8 is a side view of the transport container A when the safety wheels 3 come into contact with the floor FL while the transport container A is tilted forward from the standing state St1 to the forward tilting state St2. Note that the tilting motion refers to the motion of moving the conveying container A from the standing state St1 to the forward tilting state St2, or vice versa.

The transport container A is used, for example, for transporting a fixed number of long objects Pr. For example, a long object Pr formed through a predetermined process is accommodated in the internal space S. In the transport container A, the contents Pr are accommodated in the internal space S in the upright state St1. Then, when a predetermined state (a state determined by the number, weight, time, etc.) is reached, the conveying container A is tilted forward and conveyed, for example, to the next process.

As shown in FIG. 1, when the transport container A is in the standing state St1, the floor contact portion 143 of the side support portion 14 of the transport aid 200 contacts the floor surface FL outside the lateral side of the container 100. ing. The floor contact portions 143 of the pair of side support portions 14 are connected to each other by a bottom connecting portion 182 . The bottom connecting portion 182 is also in contact with the floor FL. Bottom surface 109 of container 100 contacts bottom connector 182 . Since the transfer container A is in contact with the floor contact portion 143 and supported by the side support portions 14 on the outside of the side surface 107 of the container 100, it is difficult to overturn even if a lateral force acts on the container 100. . Thus, in the standing state St1, the transport container A can stand by in a stable state.

As noted above, bottom connector 182 may be omitted. When the bottom connection part 182 is omitted, the bottom surface 109 of the container 100 may be in contact with the floor surface FL and stand by. Even in this case, the floor contact portion 143 contacts the floor FL and the frame portion 11 is supported by the side support portions 14, so that the container 100 is less likely to overturn in the lateral direction.

In the carrying aid 200, the auxiliary leg 2 can freely swing between the closed state Sc and the open state Sp. When the conveying container A is in the standing state St1, the auxiliary leg portion 2 hangs substantially vertically downward from the swing shaft portion 12 due to its own weight. At this time, the auxiliary leg 2 is in the state closest to the front surface 105 of the container 100, that is, in the closed state Sc. The auxiliary leg 2 in the closed state Sc may be open to such an extent that it does not interfere with the surroundings by contacting the container 100 or other members of the transportation aid 200 or the like.

Further, when the transport container A is in the standing state St1, the holding shaft portion 15 and the connecting shaft portion 43 are arranged at positions close to each other. As a result, the first connecting rod portion 41 of the leg opening restricting portion 4 rotates downward around the holding shaft portion 15 , and the second connecting rod portion 42 rotates downward around the connecting shaft portion 43 . As a result, the leg opening restricting portion 4 is bent downward so that the intermediate shaft portion 44 is at the lower end. At this time, the intermediate shaft portion 44 and the rotary joint attached to the tip of the second connecting rod portion 42 rotatably attached to the intermediate shaft portion 44 are separated from the floor FL.

When the transport container A is in the standing state St1, each part of the transport aid 200 does not come into contact with the floor FL. That is, when the transport container A is in the standing state St1, the transport aid 200 is held by the container 100. As shown in FIG.

The transport container A is transported in a forward tilting state St2 (see FIG. 3) tilted forward at a constant angle with respect to the floor FL. Next, the tilting motion of the transport container A from the upright state St1 to the forward tilting state St2 will be described. First, the gripping portion 5 of the transport container A in the standing state St1 is rotated upward around the pivot shaft portion 108 .

At this time, the interlocking portion 19 interlocks with the rotation of the grip portion 5 to swing the auxiliary leg portion 2 from the closed state Sc toward the open state Sp. In addition, as described above, the auxiliary leg 2 swings up to a certain swing angle. As a result, when the transport container A is tilted forward, it is possible to prevent the auxiliary legs 2 from swinging insufficiently. Then, with the wheels 102 stopped rotating, the sub-gripping portion 7 is pulled forward to tilt the conveying container A toward the forward tilting state St2.

As a method for stopping the rotation of the wheel 102, there is a method in which the worker steps on the wheel 102 directly with his foot to stop it, but other methods may be used. For example, the transport aid 200 may have a configuration that stops the rotation of the wheels 102 . The braking portion 17, which is an example of a configuration for stopping the rotation of the wheel 102, will be described below with reference to the drawings. 9 is an enlarged side view of the braking portion 17 of the transport container A. FIG. FIG. 10 is an enlarged side view of the state in which the braking portion 17 of the conveying container A is actuated. FIG. 11 is an enlarged side view of the forward tilting state St2 of the conveying container A having the braking portion 17. FIG. 9 to 11, illustration of the grip portion 5 is omitted.

As shown in FIGS. 9 to 11, the braking portion 17 includes a contact portion 171, a rotating portion 172, a support portion 173, and a spring 174. As shown in FIGS. The contact portion 171 is a rod-shaped member, and stops the rotation of the wheel 102 when one end contacts the wheel 102 .

The rotating portion 172 is arranged at the lower end of the front support portion 141 . The rotating portion 172 rotatably supports the support portion 173 with respect to the front support portion 141 . That is, the support portion 173 is rotatably supported with respect to the front support portion 141 around the rotating portion 172 . A contact portion 171 is arranged on the support portion 173 .

Spring 174 is an example of an elastic member. The spring 174 has one end fixed to the front support portion 141 and the other end fixed to the support portion 173 . The support portion 173 is pulled by the elastic force of the spring 174 and arranged at a position along the front support portion 141, in other words, at the closest position.

When the support portion 173 is closest to the front support portion 141, the contact portion 171 is supported by the support portion 173 along the front support portion 141 (see FIG. 9). Further, when the support portion 173 is at the farthest position from the front support portion 141, the tip of the contact portion 171 contacts the wheel 102, and the rotation of the wheel 102 is stopped (see FIG. 10). Further, when no force is applied to the contact portion 171 , the contact portion 171 is maintained at the position closest to the front support portion 141 by the elastic force of the spring 174 . When the conveying container A is in the forward tilting state St2 with the contact portion 171 at the closest position, the contact portion 171 is arranged so as to be separated from the floor FL.

For example, the worker steps on the other end of the contact portion 171 in the braking portion 17, in other words, the contact portion 171 is urged in the direction to approach the wheel 102, so that the support portion 173 and the support portion 173 are supported. The contact portion 171 rotates around the rotating portion 172 . As a result, one end of the contact portion 171 comes into contact with the wheel 102, and the wheel 102 stops rotating.

When the contact portion 171 is in contact with the wheel 102 , the contact portion 171 is subjected to the force applied by the operator in the direction of pressing the wheel 102 and the elastic force of the spring 174 . In this state, when the operator removes the force applied to the braking portion 17 , the support portion 173 is lifted by the spring 174 . As a result, the contact portion 171 rotates upward, and the contact portion 171 is arranged at the position closest to the front support portion 141 .

By using the braking portion 17 in this manner, the movement of the wheel 102 can be stopped more reliably than when the wheel 102 is fixed by directly touching it with the operator's foot.

In addition, although it is disclosed that the operator steps on the contact portion 171 to operate the braking portion 17 in the present embodiment, the present invention is not limited to this. For example, the movement of the wheels 102 may be stopped in conjunction with the upward rotation of the gripping portion 5, or the braking portion 17 may move the wheels 102 when the sub gripping portion 7 is operated in the lifting direction. may be configured to stop the movement of The braking portion 17 may be provided on one side of the transport container A, or may be provided on both sides.

Then, with the wheels 102 stopped rotating, the sub-gripping portion 7 is pulled forward to tilt the conveying container A toward the forward tilting state St2. That is, the transport container A tilts forward about the axle of the wheel 102, that is, tilts forward.

As described above, the floor contact portion 143 of the side support portion 14 is arranged behind the wheel 102 . Therefore, when the transport container A tilts forward about the axle of the wheel 102, the floor contact portion 143 and the bottom connecting portion 182 are separated from the floor surface FL. By separating the floor contact portion 143 and the bottom connection portion 182 from the floor FL, the transport aid 200 is held by the container 100 and the transport container A is supported by the wheels 102 .

When the floor contact portion 143 and the bottom connecting portion 182 are separated from the floor FL during the tilting operation of the transport container A, the arm portion 13 of the transport aid 200 is rotatably supported by the pivot shaft portion 108. Therefore, the lower portion moves forward around the pivot shaft portion 108 . At this time, the lower pressing portion 181 comes into contact with the back surface 106 of the container 100 (see FIGS. 3, 7, 8, etc.). Thereby, the carrying aid 200 is supported by the container 100 .

That is, when the conveying container A is tilted forward, the arms 13 are rotatably supported by the pivot shafts 108, and the lower pressing portions 181 are brought into contact with the back surface 106, so that the conveying assisting device 200 is held in container 100 .

As described above, the auxiliary leg portion 2 is attached to the swing shaft portion 12 so as to be swingable. Further, the auxiliary leg portion 2 is further swung toward the open state Sp through the interlocking portion 19 by the rotation of the grip portion 5 . That is, when the conveying container A tilts forward, the auxiliary leg portion 2 further moves away from the front surface 105 of the container 100 around the pivot shaft portion 12 .

As the auxiliary leg portion 2 moves away from the front surface 105 of the container 100, the first connecting rod portion 41 and the second connecting rod portion 42 are also pulled and opened. As a result, the intermediate shaft portion 44 also gradually moves upward. The speed at which the intermediate shaft portion 44 moves upward is slower than the speed at which the conveying container A inclines. Therefore, for example, as shown in FIG. 7, when the transport container A is tilted to some extent, the intermediate shaft portion 44 contacts the floor surface FL before the auxiliary wheels 3 arranged at the tips of the auxiliary leg portions 2 do.

The intermediate shaft portion 44 of the leg opening limiter 4 can temporarily support the weight of the transport container A acting on the grip portion 5 when the transport container A is tilted forward. Therefore, a rapid change in weight can be suppressed, and the burden on the user when tilting the transport container A forward can be reduced.

The intermediate shaft portion 44 is not fixed. Therefore, by further tilting the conveying container A, the holding shaft portion 15 side of the first connecting rod portion 41 rotates downward around the intermediate shaft portion 44 . Further, the second connecting rod portion 42 rotates downward on the connecting shaft portion 43 side around the intermediate shaft portion 44 . Such actions of the first connecting rod portion 41 and the second connecting rod portion 42 swing the auxiliary leg portion 2 closer to the open state Sp. That is, by opening the first connecting rod portion 41 and the second connecting rod portion 42 around the intermediate shaft portion 44 , the auxiliary leg portion 2 is moved forward from the position where it hangs substantially vertically downward from the swing shaft portion 12 . side (see Figure 7).

As the transport container A further inclines, the first connecting rod portion 41 and the second connecting rod portion 42 of the leg opening restricting portion 4 are further opened. Then, the auxiliary wheel 3 attached to the auxiliary wheel support portion 21 at the tip of the auxiliary leg portion 2 comes into contact with the floor surface FL, and the intermediate shaft portion 44 of the leg opening limit portion 4 separates from the floor surface FL. As described above, by moving the auxiliary leg portion 2 in the opening direction by the leg opening limit portion 4, the position where the auxiliary wheel 3 first contacts the floor FL is forward of the swing shaft portion 12. There is (see Figure 8).

As a result, when the transport container A is further tilted forward and the auxiliary wheels 3 receive force from the floor FL, the auxiliary legs 2 are urged in the opening direction. Then, the conveying container A enters the forward tilting state St2, and the auxiliary legs 2 also enter the open state Sp (see FIG. 3).

When the conveying container A is in the forward tilting state St2, a force acts on the conveying aid 200 in a direction to rotate the lower portion forward about the pivot shaft portion 108 . On the other hand, a force acts on the container 100 to rotate the upper portion forward about the axle of the wheel 102 . Due to these forces, in the conveying container A, a force acts in a direction in which the wheels 102 and the auxiliary wheels 3 move away from each other. When the lower pressing portion 181 of the transport aid 200 contacts the back surface 106 of the container 100, the wheels 102 and the auxiliary wheels 3 are kept at a constant distance.

That is, when the transport container A is in the forward tilting state St2, the lower pressing portion 181 of the transport aid 200 comes into contact with the rear surface 106 of the container 100 . As a result, the transport container A is maintained in the forward tilting state St2.

When the user holds the sub-gripping portion 7 of the transporting container A in the forward tilting state St2 and lifts the sub-gripping portion 7 upward, the transporting container A moves to the upright state St1. At this time, since the leg opening limiter 4 has a structure that folds downward, it is folded by its own weight. Along with this, the auxiliary leg portion 2 also swings about the swing shaft portion 12 from the open state Sp toward the closed state Sc.

Then, as the auxiliary wheel 3 moves away from the floor FL, the intermediate shaft portion 44 of the leg spread limiter 4 comes into contact with the floor FL. The intermediate shaft portion 44 is lifted and separated from the floor FL. When the floor contact portion 143 and the bottom connecting portion 183 of the side support portion 14 of the carrying aid 200 come into contact with the floor FL, the leg opening limiting portion 4 is completely folded and the auxiliary leg portion 2 is closed. It will be in state Sc.

As described above, the transporting container A is tilted forward while holding the sub-gripping portion 7, thereby changing the state from the upright state St1 to the forward tilting state St2. Further, by holding the sub-grip portion 7 and lifting it upward, the state changes from the forward tilted state St2 to the standing state St1. That is, the tilting motion can be performed only by operating the sub-grip portion 7, which is highly convenient for the user.

In the case of the container 100 alone, the user must continue to support the container 100 when the container 100 is tilted forward for transportation. On the other hand, in the forward tilting state St2, the transport container A stands on its own by being supported by the auxiliary legs 2 . Therefore, the user who transports the transport container A does not need to support the weight of the transport container A, and the force required for transport can be reduced. This reduces the burden on the user and further enhances safety.

Further, by providing the leg opening limiter 4 that can be bent downward, the leg opening limiter 4 supports part of the weight that is supported when the transport container A is tilted forward. Further, the portion where the training wheel 3 first contacts the floor surface FL when the intermediate shaft portion 44 of the leg opening restricting portion 4 contacts the floor surface FL is positioned forward of the swing shaft portion 12 at that time. can be done. As a result, the conveying container A can be changed to a forward tilting state for conveying the conveying container A by a simple operation of grasping the sub-gripping portion 7 and tilting forward. Therefore, work such as opening the auxiliary leg portion 2 and fixing the auxiliary leg portion 2 is not required.

Further, when the conveying container A is tilted forward, the auxiliary leg portion 2 is forcibly moved in the opening direction by the leg opening restricting portion 4 . Therefore, it is possible to prevent the conveying container A from overturning forward due to insufficient opening of the auxiliary leg portion 2 . As a result, it is possible to reduce the burden on the user when tilting the transport container A forward in preparation for transport, and to enhance the safety of the user.

The transport aid 200 is attached to the pivot shaft portion 108 on the top of the container 100, and the floor contact portion 143 of the transport aid 200 is arranged at the rear. Therefore, in the erected state St1, the container 100 receives a force in the forward tilting direction from the transportation aid 200. As shown in FIG.

The total weight of the container 100 including the contents Pr may be lighter than the weight of the transport aid 200 when the contents Pr are not stored in the container 100 or the amount of the contents Pr is small. In the upright state St1, when the weight of the transport aid 200 acts on the container 100, which is light in weight, in the forward tilting direction, the container 100 tilts in the forward tilting direction. For example, when the wheels 102 move backward due to the forward tilting of the container 100, the conveying container A falls in the forward tilting direction.

In the conveying container A, the rear surface 106 of the container 100 contacts the lower pressing portion 181 . As a result, even when a forward-tilting force acts on the container 100 having a light total weight, the forward-tilting movement of the container 100 is suppressed, and the forward-tilting overturning is suppressed. That is, in the upright state St1, the transfer container A is prevented from overturning in the forward tilting direction even when the total weight of the container 100 is light. As a result, the transport container A can stably stand by in the upright state St1, and the objects Pr can be safely and reliably accommodated in the transport container A in the upright state St1.

Further, the transport container A has a small vertical projected area when it is in the standing state St1. In addition, the lateral support portion 14 contacts the floor surface FL outside the side surface 107 of the container 100, thereby stabilizing the transport container A in the upright state St1. In other words, when the transport container A is in the standing state St1, it is possible to stabilize and improve the area efficiency. Further, since the direction of the container 100 in the upright state St1 coincides with the direction of gravity, when the long object Pr is accommodated in the container 100, it is only necessary to support the object Pr in the vertical direction. , Unreasonable force such as bending stress is difficult to act. Therefore, it is possible to easily and safely store the long object Pr in the internal space S of the container 100 .

Assuming that the object Pr housed in the internal space S is a long object, when the transfer container A is in the upright state St1, the object Pr is set to the same length as the object Pr for containing or taking out the object Pr. It is necessary to lift vertically upwards or more. On the other hand, when the transport container A is in the forward tilting state St2, the container 100 is supported in a forward tilting state. When a long object Pr is taken out from the container 100 of the transport container A in the forward tilting state St2, the length of movement of the object Pr in the axial direction is the same as in the upright state St1, but The amount of movement in the direction can be reduced. Therefore, even a user with a short stature can easily perform the work. In the container 100 , part of the content Pr is supported by the partition 104 . Therefore, when the contained object Pr is taken out, the contained object Pr is supported by the partition part 104, so that the bending stress or the like is reduced, and the load on the contained object Pr can be reduced.

That is, in the transport container A, the objects Pr are stored in the upright state St1, and the objects Pr are transported in the forward-tilted state St2 while the objects Pr are taken out. can be done safely and easily.

<Connection of transport container A>
The transport container A can be transported independently, and a plurality of transport containers A can be connected to allow one user to simultaneously transport the connected transport containers A. The connection of a plurality of transport containers A will be described below with reference to the drawings. FIG. 12 is a side view of a state in which two transport containers A are connected in the front-rear direction. In the description of the connected state, the two transport containers A are distinguished by referring to the front transport container A as the front transport container Af and the rear transport container A as the rear transport container Ar, as necessary.

As shown in FIG. 12, the front-side transport container Af and the rear-side transport container Ar in the forward tilting state St2 are arranged side by side. Then, the grip portion 5 of the rear transport container Ar is rotated forward about the pivot shaft portion 108 . The first engaging portion 61 provided on the grip portion 5 of the rear transport container Ar is engaged with the second engaging portion 62 provided on the rear frame portion 112 of the frame portion 11 of the front transport container Af.

As described above, the two transport containers A are connected back and forth. When the user grabs the grip portion 5 of the front transport container Af and pulls it forward, the two connected transport containers A are transported forward at the same time. As a result, it is possible to transport a plurality of transport containers A at the same time even in a place where the width in the horizontal direction is narrow.

In the transport container A, the weight of the transport container A including the weight of the contents Pr is supported by the wheels 102 and the auxiliary wheels 3, and the wheels 102 and the auxiliary wheels 3 are rotatable on the floor FL. Therefore, by using the transport container A, the user can transport the same amount of contents Pr with less force than when the user grips and transports the tilted containers 100 one by one with both hands. be.

In the present embodiment, the configuration in which two transport containers A are connected in the front and rear has been described as an example, but two or more transport containers A may be connected. Also, the connection direction is not limited to the front and rear, and the connection may be made to the left and right. In this case, the first engaging portion and the second engaging portion have different configurations from those described above, and a wide variety of coupling methods that enable simultaneous transport of a plurality of transport containers can be employed.

<Modification>
Another example of the transport container according to the present invention will be described with reference to the drawings. FIG. 13 is a side view of a transport container A1 of a modified example. A conveying container A1 shown in FIG. 13 differs from the conveying container A shown in FIG. Other points of the transport container A1 are the same as those of the transport container A. Therefore, portions of the transport container A1 that are substantially the same as those of the transport container A are denoted by the same reference numerals as those of the transport container A, and detailed description of the same portions is omitted.

As shown in FIG. 13, in the leg opening restriction portion 4a of the transport container A1, the first connecting rod portion 41a and the second connecting rod portion 42a rotate upward when the auxiliary leg portion 2 is in the closed state Sc. That is, the intermediate portion of the leg opening restricting portion 4a is folded upward, that is, the intermediate shaft portion 44a moves upward.

The leg opening restricting portion 4a has a lock mechanism (not shown) that maintains the open state. As a structure for maintaining the open state, for example, a structure that restricts the rotation of the second connecting rod portion 42a around the intermediate shaft portion 44a, and a structure that restricts the rotation of the first connecting rod portion 41a around the holding shaft portion 15. A structure or the like that restricts and restricts the rotation of the second connecting rod portion 42a around the connecting shaft portion 43a can be used, but is not limited thereto. Folding of the leg opening restricting portion 4a requires work by the user.

With such a configuration, when the transport container A1 is in the standing state St1, it is possible to maintain the auxiliary leg 2 in the open state Sp. With this configuration, when the transport container A1 is tilted forward, the portion where the safety wheels 3 contact the floor FL can be accurately predicted, and the transport container A1 can be safely brought to the forward tilt state St2.

As the leg opening restricting portion 4a including the locking mechanism for maintaining the open state shown above, a structure that can be folded upward has been disclosed, but the leg opening restricting portion 4 shown in FIG. The downwardly folded structure may include structure to maintain the open state.

Although the embodiment of the present invention has been described above, the present invention is not limited to this content. Various modifications can be made to the embodiments of the present invention without departing from the spirit of the invention.

The conveying aid of the present invention can be employed as an aid for conveying a vertically elongated container having wheels, for example. Examples of such containers include trash cans, containers for transporting goods, and the like. The transport container of the present invention can also be configured as a wheelchair or a stroller by making it so that a person can sit on it.

A Transfer container 100 Container 101 Top opening 102 Wheel 103 Lid 1031 Pivot rib 104 Partition 105 Front 106 Back 107 Side 108 Pivot shaft 109 Bottom 200 Transfer aid 1 Body 11 Frame 111 Front frame 112 Rear frame Part 113 Horizontal frame portion 12 Swing shaft portion 13 Arm portion 14 Side support portion 141 Front support portion 142 Rear support portion 143 Floor contact portion 144 Support connection portion 15 Holding shaft portion 16 Pedestal portion 17 Lower pressing portion 18 Bottom connection portion 2 Auxiliary leg portion 21 Auxiliary wheel support portion 3 Auxiliary wheel 4 Leg opening limit portion 41 First connecting rod portion 42 Second connecting rod portion 43 Connecting shaft portion 44 Intermediate shaft portion 5 Gripping portion 51 Gripping arm portion 52 Gripping arm portion coupling portion 6 Engagement Part 61 First Engagement Part 62 Second Engagement Part 621 Elastic Member 7 Sub-Gripping Part 70 Sub-Gripping Part 701 Connecting Member A1 Transfer Container 4a Leg Opening Limiting Part 41a First Connecting Rod 42a Second Connecting Rod 43a Connection shaft portion 44a Intermediate shaft portion Af Front side transport container Ar Rear side transport container FL Floor surface Pr Contents S Internal space Sc Closed state Sp Open state St1 Standing state St2 Forward tilting state

Claims (8)

A transport aid for assisting transport of a container having wheels arranged biased on the front side,
a main body attached to the container;
an auxiliary leg pivotally supported by a swing shaft on the upper front side of the main body and extending downward from the swing shaft so that the lower end can swing between an open state and a closed state;
an auxiliary wheel provided at the lower end of the auxiliary leg;
a leg opening limiting portion connecting the main body portion and the auxiliary leg portion below the swing shaft portion and being foldable at an intermediate portion to limit an opening range of the auxiliary leg portion;
The main body is
Having a side support portion arranged on the side surface side of the container and having a lower end portion capable of contacting the floor surface,
When the container is placed upright along the vertical direction, the lower end of the side support portion comes into contact with the floor surface and the auxiliary wheels are separated from the floor surface,
By tilting the container forward and opening the auxiliary legs, the lower end of the side support part is separated from the floor surface and the container is supported by the wheels and the auxiliary wheels so as to be transportable. be,
The container has a lid that opens and closes the top opening by being pivotally supported by the pivot shaft,
The main body is
a frame surrounding the container;
an arm portion extending upward from the front side of the frame portion and attached to the pivot shaft portion;
The side support portion is a carrying aid extending downward from the side surface side of the frame portion . The main body is
2. The carrying aid according to claim 1 , further comprising a lower holding portion arranged below the frame portion to connect the side support portions and capable of coming into contact with the rear surface of the container. 3. The transport according to claim 1 or 2 , wherein the leg opening restricting portion is folded by being folded upward so that the auxiliary leg portion can be maintained in a maximum open state while the bottom surface of the container is in contact with the ground. Auxiliary. The leg opening restricting portion is folded by bending downward,
The intermediate portion of the leg opening limiter contacts the floor surface before the container is tilted and the training wheels contact the floor surface, and the training wheels are separated from the floor surface when the training wheels come into contact with the floor surface. The carrying aid according to claim 1 or 2 . The auxiliary leg has an auxiliary wheel support that supports the auxiliary wheel,
When the lower ends of the auxiliary legs are set to the furthest distance from the main body and the container is tilted forward to bring the auxiliary wheels into contact with the floor surface, the auxiliary wheel support portions are perpendicular to the floor surface. The carrying aid according to any one of claims 1 to 4 . 6. The carrying aid according to any one of claims 1 to 5, further comprising a gripping portion rotatably supported by the main body portion or the container with a rotating shaft parallel to the swing shaft portion. a first engaging portion provided in the gripping portion;
a second engaging portion provided on the back side of the main body;
7. The carrying aid according to claim 6 , wherein a plurality of forwardly inclined containers can be connected by engaging the first engaging portion and the second engaging portion. a carrying aid according to any one of claims 1 to 7 ;
and the container to which the transportation aid is attached.

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