JP5813713B2 - Transport cart - Google Patents

Description

  The present invention relates to a transport cart.

  In a transport cart for transporting a transported object, for example, a transport cart having a function of moving a mounting table (loading platform) on which the transported object is mounted, as disclosed in Patent Document 1 to Patent Document 3, for example. Are known.

JP 2002-321626 A JP 2004-243894 A JP 2009-184775 A

  In a transport cart having a function of raising and lowering the mounting table, when the mounting table is not lifted and lowered smoothly, there is a possibility that the loading and unloading operations of the object to be transferred cannot be performed smoothly.

  This invention is made | formed in view of the above, Comprising: It aims at providing the conveyance trolley with good workability | operativity.

  In order to solve the above-described problems and achieve the object, the transport carriage according to the present invention can be rotated on the carriage body on which the object to be conveyed is placed, the carriage body on which the mounting table is mounted, and the carriage body. At least a part of the mounting table due to the movement of the wire due to the rotation of the wheel, the wire supported by the wheel, a part of which is connected to the mounting table and the other part of which is wound by the rotation of the wheel. A guide mechanism for guiding the mounting table so as to move up and down.

  According to the present invention, since a wire is provided in which a part is connected to the mounting table and the other part is wound by the rotation of the wheel, the rotational force of the wheel is transmitted to the mounting table via the wire. And since the guide mechanism which guides a mounting base is provided so that at least a part of mounting base may be raised / lowered, at least one part of a mounting base can be raised / lowered only by rotating a wheel. Therefore, it is possible to perform the work of loading and unloading the object to be conveyed with good workability.

  As a desirable mode of the present invention, it is preferable that the guide mechanism raises a part of the mounting table so that the mounting table on which the transported object is mounted is inclined. Thereby, the operator can raise a part of the mounting table by pushing the transport carriage and rotating the wheels without requiring a great deal of force. Moreover, since the mounting table is inclined so that a part of the transferred object is lifted, the transferred object can be smoothly carried out of the mounted table.

  As a preferred aspect of the present invention, the guide mechanism is provided in the cart body, and is provided in the carriage with the first guide groove extending in the traveling direction of the cart body, and moves through the first guide groove. A first slide member, a second guide groove provided in the cart body and extending in a direction inclined with respect to the traveling direction, a second slide member provided in the mounting table and moving in the second guide groove; It is preferable to have. Thereby, for example, since the placing table is inclined only by the operator pressing the transport carriage, the work to load and unload the transported object can be performed with good workability. In addition, since the mounting table moves so as to slide in the traveling direction simultaneously with the lifting and lowering of the mounting table, it is possible to suppress a decrease in weight balance.

  As a desirable mode of the present invention, it is preferable to include a pulley that is attached to the cart body and supports the wire. As a result, the direction of the wire connected to the mounting table and the direction in which the mounting table is desired to move can be made closer, and the rotational force of the wheel is efficiently converted to a force that moves the mounting table.

  According to the present invention, an object to be conveyed can be conveyed with good workability.

FIG. 1 is a side view showing an example of a transport carriage according to the first embodiment. FIG. 2 is a side view showing an example of a mounting table according to the first embodiment. FIG. 3 is a rear view illustrating an example of the mounting table according to the first embodiment. FIG. 4 is a top view illustrating an example of the mounting table according to the first embodiment. FIG. 5 is a side view showing an example of a cart body according to the first embodiment. FIG. 6 is a front view showing an example of a cart body according to the first embodiment. FIG. 7 is a top view illustrating an example of the bogie body according to the first embodiment. FIG. 8 is a diagram illustrating an example of the operation of the transport carriage according to the first embodiment. FIG. 9 is a side view showing a part of the transport carriage according to the first embodiment. FIG. 10 is a cross-sectional view showing a part of the transport carriage according to the first embodiment. FIG. 11 is a diagram illustrating an example of the operation of the transport carriage according to the first embodiment. FIG. 12 is a diagram illustrating an example of the transport carriage according to the first embodiment. FIG. 13 is a diagram illustrating an example of the transport carriage according to the first embodiment. FIG. 14 is a diagram illustrating an example of a transport carriage according to the second embodiment. FIG. 15 is a diagram illustrating an example of a winding device according to the third embodiment.

  Hereinafter, embodiments according to the present invention will be described with reference to the drawings, but the present invention is not limited thereto. The components of the embodiments described below can be combined as appropriate. Some components may not be used. In addition, constituent elements of the embodiments described below include those that can be easily assumed by those skilled in the art, those that are substantially the same, and those in a so-called equivalent range.

  In the following description, an XYZ orthogonal coordinate system is set, and the positional relationship of each part will be described with reference to this XYZ orthogonal coordinate system. One direction in the horizontal plane is defined as the X-axis direction, the direction orthogonal to the X-axis direction in the horizontal plane is defined as the Y-axis direction, and the direction orthogonal to each of the X-axis direction and Y-axis direction (that is, the vertical direction) is defined as the Z-axis direction. Further, the rotation (inclination) directions around the X axis, Y axis, and Z axis are the θX, θY, and θZ directions, respectively. The X axis is orthogonal to the YZ plane. The Y axis is orthogonal to the XZ plane. The Z axis is orthogonal to the XY plane.

<First Embodiment>
A first embodiment will be described. FIG. 1 is a side view showing an example of a transport carriage 100 according to the present embodiment. The transport cart 100 is for transporting the transported object B, and can be rotated to the mounting base 1 on which the transported object B is mounted, the cart main body 2 on which the mounting base 1 is mounted, and the cart main body 2. The wheel 3 supported by the wheel 3, a part of which is connected to the mounting table 1, and another part of the wire 4 is wound up by the rotation of the wheel 3, and a guide mechanism 5 that guides the mounting table 1. In the present embodiment, the conveyed object B is a gas cylinder and has a weight of, for example, 50 kg or more and 100 kg or less. In addition, the to-be-conveyed object B is not limited to a gas cylinder.

  The mounting table 1 will be described. 2 is a side view of the mounting table 1, FIG. 3 is a rear view of the mounting table 1, and FIG. 4 is a top view of the mounting table 1. As shown in FIGS. 1, 2, 3, and 4, the mounting table 1 includes a frame member 11, a support member 12 connected to the frame member 11, and a vertical member 13 connected to the frame member 11. The support member 14 is connected to the vertical member 13 and can be opposed to the end surface on the −X side of the conveyed object B, and the horizontal member 15 is connected to the vertical member 13. The frame member 11 is a member in which two members extending in the X-axis direction and arranged in the Y-axis direction and two members extending in the Y-axis direction and arranged in the X-axis direction are combined. . The support member 12 is a member extending in the Y-axis direction, and a plurality of support members 12 are arranged in the X-axis direction. The support member 12 is disposed inside the frame member 11, and both ends of the support member 12 are connected to the frame member 11. The transported object B is placed on the support member 12. The vertical member 13 is a member extending in the Z-axis direction, and a plurality of the vertical members 13 are arranged so as to surround the conveyed object B. The lateral member 15 is a member extending in the X-axis direction, and is disposed above the frame member 11 (+ Z direction). With respect to the Y-axis direction, the transverse member 15 is disposed on both sides of the support member 12 (conveyed object B). The frame member 11 is connected to the lower end portion of the vertical member 13, and the horizontal member 15 is connected to an intermediate portion of the vertical member 13. Even if the transported object B placed on the support member 14 moves in the + Y direction or the −Y direction, the transported object B and at least one of the horizontal member 15 and the vertical member 13 come into contact with each other. B is prevented from falling from the mounting table 1. The support member 14 is supported by the vertical member 13 so as to face the −X side end surface of the conveyed object B. Even if the transported object B placed on the support member 12 moves in the −X direction, the transported object B may fall from the mounting table 1 due to the contact between the transported object B and the support member 14. Is prevented.

  Next, the cart body 2 will be described. FIG. 5 is a side view of the carriage main body 2, FIG. 6 is a front view of the carriage main body 2, and FIG. 7 is a top view of the carriage main body 2. As shown in FIGS. 1, 5, 6, and 7, the carriage main body 2 is supported by the support base 21 on which the mounting base 1 is mounted and the support base 21, and supports the wheels 3 rotatably. The member 22, the vertical member 23 connected to the support base 21, the guide member 24 connected to the vertical member 23, a part is connected to the guide member 24, and the other part is connected to the vertical member 23. And a guide member 25. The support base 21 is a frame member that is a combination of two members that extend in the X-axis direction and are arranged in the Y-axis direction, and two members that extend in the Y-axis direction and are arranged in the X-axis direction. is there. The mounting table 1 is supported by the support table 21. The vertical member 23 is a member extending in the Z-axis direction, and a plurality of the vertical members 23 are arranged so as to surround the mounting table 1. The guide member 24 is a member extending in the X-axis direction and is supported by the vertical member 23. The guide member 25 is disposed so as to be inclined with respect to the guide member 24. With respect to the Y-axis direction, the guide member 24 and the guide member 25 are disposed on both sides of the center of the carriage body 2. The support base 21 is connected to the lower end portion of the vertical member 23, and the guide member 24 is connected to the intermediate portion of the vertical member 23. One end of the guide member 25 and the guide member 24 are connected, and the other end of the guide member 25 and the vertical member 23 are connected. In the present embodiment, four vertical members 23 are arranged. With respect to the X-axis direction, the guide member 25 is connected to the vertical member 23 on one side (+ X side) from the center of the cart body 2, and the handle member (gripping member) 26 is connected to the vertical member 23 on the other side (−X side). Connected.

  Next, the wheel 3, the wire 4, and the guide mechanism 5 will be described with reference to FIGS. In the present embodiment, the transport carriage 100 is a four-wheel vehicle, and four wheels 3 are provided. The wheel 3 is supported (connected) by the shaft member 31 and rotates on the ground, whereby the transport carriage 100 moves (runs) in the X-axis direction. In the following description, of the four wheels 3, the wheel 3 arranged on one side (+ X side) from the center of the carriage main body 2 in the X-axis direction is appropriately referred to as a front wheel 3 </ b> A, and the other side (−X side). ) Is appropriately referred to as a rear wheel 3B. The two front wheels 3A are supported by the shaft member 31A, and the two rear wheels 3B are supported by the shaft member 31B. The support member 22 of the carriage main body 2 supports the shaft member 31 in a rotatable manner.

  A part of the wire 4 can be connected to the shaft member 31, and the other part of the wire 4 can be connected to the mounting table 1. In the present embodiment, one end of the wire 4 is connected to the shaft member 31 </ b> A of the front wheel 3 </ b> A, and the other end of the wire 4 is connected to the mounting table 1. The shaft member 31 </ b> A is provided with a fixing portion 41 that fixes one end portion of the wire 4. The mounting table 1 is provided with a fixing portion 42 that fixes the other end of the wire 4. The fixing portion 41 and the fixing portion 42 may include a fixing tool that can fix the wire 4, or may include a collar portion (convex portion) that can hook a part of the wire 4. In the present embodiment, the fixing portion 42 is provided on the vertical member 13 disposed on the other side (−X side) than the center of the mounting table 1 in the X-axis direction. At least a part of the wire 4 is wound around the shaft member 31 when the wheel 3 (the shaft member 31) rotates while the wire 4 is fixed to the fixing portion 41. Each of the fixing portion 41 and the fixing portion 42 fixes the wire 4 so that it can be released. That is, the wire 4 can be removed from each of the fixing portion 41 and the fixing portion 42. The fixed portion 41 may be disposed on the wheel 3 and one end of the wire 4 may be connected to the wheel 3. At least a part of the wire 4 may be wound around the wheel 3 by the rotation of the wheel 3.

  In the present embodiment, the transport carriage 100 includes a pulley 43 and a pulley 44 that support the wire 4. The pulley 43 and the pulley 44 are attached to the carriage main body 2. The pulley 43 is disposed on the other side (−X side) than the center of the carriage body 2 in the X-axis direction, and the pulley 44 is disposed on one side (+ X side).

  The guide mechanism 5 is provided in the guide member 24 of the carriage main body 2, and is provided in the guide groove 51 extending in the traveling direction (X-axis direction) of the carriage main body 2 (conveyance carriage 100) and the mounting table 1. 51, a slide member 53 that moves 51, a guide member 25 of the carriage main body 2, a guide groove 52 that extends in an inclined direction that is inclined with respect to the traveling direction of the carriage main body 2, and a guide that is provided in the mounting table 1. And a slide member 54 that moves in the groove 52. The guide groove 51 is parallel to the horizontal plane (XY plane) and extends in the X-axis direction. The guide groove 52 is inclined in the + Z direction (upward) toward the + X direction (the traveling direction of the carriage main body 2). Each of the slide member 53 and the slide member 54 includes a convex member protruding from the side surface of the mounting table 1.

  Next, an example of operation | movement of the conveyance trolley | bogie 100 which concerns on this embodiment is demonstrated with reference to FIG. In the present embodiment, the transport cart 100 is operated by the worker WM. For example, when performing the operation | work which loads the to-be-conveyed object B mounted in the conveyance trolley | bogie 100 on the loading platform of the conveyance vehicle TR, the one end part of the wire 4 is fixed to the fixing | fixed part 41, and the other end part of the wire 4 is the fixing | fixed part 42. The worker WM holds the handle member 26 and pushes the transport carriage 100 in the + X direction. When the transport trolley 100 is pushed in the + X direction by the worker WM, the wheels 3 rotate, and the transport trolley 100 moves (runs) in the + X direction.

  By rotation of the wheel 3, at least a part of the wire 4 is wound around the shaft member 31 (or the wheel 3). As a result, the other end portion (fixed portion 42) of the wire 4 moves in the + X direction, and a force in the + X direction acts on the mounting table 1. In the present embodiment, the guide mechanism 5 guides the mounting table 1 so that at least a part of the mounting table 1 moves up and down by the movement of the other end of the wire 4. In the present embodiment, when the other end of the wire 4 moves in the + X direction, the guide mechanism 5 raises the + X side end of the mounting table 1 (conveyed object B) and the other end of the wire 4 becomes −X. The mounting table 1 is guided so that the + X side end of the mounting table 1 descends when moving in the direction. In the example shown in FIG. 8, the transport carriage 100 is pushed in the + X direction by the worker WM, and a part of the wire 4 is wound around the shaft member 31 so that the other end of the wire 4 moves in the + X direction. The + X side end of the mounting table 1 is raised. Thereby, the mounting table 1 on which the transfer object B is mounted is inclined with respect to the horizontal plane. Since the mounting table 1 is tilted so that the + X side end of the transported object B is lifted, the work of loading the transported object B mounted on the transporting carriage 100 onto the transporting vehicle TR is smoothly performed. In addition, as shown in FIG. 8, the mounting table 1 is inclined so that the + X side end of the mounting table 1 is positioned more on the + X side than the + X side end of the carriage body 2, and The + X side end of the conveyed product B) protrudes from the cart body 2. Thereby, the carrying-out operation | work of the to-be-conveyed object B from the mounting base 1 can be performed smoothly.

  In the present embodiment, the guide mechanism 5 includes a guide groove 51 extending in the horizontal direction (X-axis direction) and a guide groove 52 extending in the inclination direction, and thus the mounting table 1 (conveyed object B). Simultaneously with the rise of the + X side end, the entire mounting table 1 moves in the + X direction. Thereby, even if the mounting table 1 is inclined, it is possible to suppress the weight balance of the transport carriage 100 from being lowered and to perform work with good workability. Further, in the present embodiment, the support member 14 is disposed at a position facing the end surface on the −X side of the transported object B mounted on the mounting table 1, so that the + X side end of the mounting table 1 Can be supported by the support member 14 even if the height is increased.

  On the other hand, for example, when the object B mounted on the transport vehicle TR is unloaded from the transport vehicle TR and mounted on the transport cart 100, the transport cart 100 approaches the transport vehicle TR with the mounting table 1 inclined, The to-be-conveyed object B of vehicle TR is mounted in the mounting base 1 of the conveying cart 100, and the conveying cart 100 moves to -X direction after that. When the transport carriage 100 moves in the −X direction, the wire 4 wound around the shaft member 31 is released from the shaft member 31. Thereby, the other end part (fixed part 42) of the wire 4 moves in the -X direction, and the + X side end part of the mounting table 1 is lowered.

  9 and 10 are diagrams illustrating an example of the wheel 3 in the loading work and the unloading work of the transported object B. FIG. FIG. 9 is a side view showing an example of the wheel 3, and FIG. 10 is a cross-sectional view. The wheel 3 is provided with a hole 3H penetrating in a direction parallel to the rotation axis of the wheel 3, and at least a part of the carriage body 2 has a hole 32H penetrating in a direction parallel to the rotation axis of the shaft member 31. A fixing member 32 is provided. For example, the fixing member 33 is disposed in the hole 3H and the hole 32H in a state where the mounting table 1 is inclined so that the + X side end of the mounting table 1 is disposed on the + Z side with respect to the −X side end. By doing so, rotation of the wheel 3 is prevented. Thereby, the loading operation and the unloading operation are smoothly performed in a state where the wheels 3 are fixed.

  In addition, when making the conveyance trolley | bogie 100 drive | work without raising the mounting base 1, the wire 4 is removed from the fixing | fixed part 41 (shaft member 31) and the fixing | fixed part 42 (mounting base 1). Since the rotational force of the wheel 3 is not transmitted to the mounting table 1 by removing the wire 4 from the fixing unit 41 and the fixing unit 42, the mounting table 1 does not move (elevate) even if the wheel 3 rotates.

  As described above, according to the present embodiment, the wire 4 is provided in which a part is connected to the mounting table 1 and the other part is wound around the shaft member 31 (or the wheel 3) by the rotation of the wheel 3. Therefore, the rotational force of the wheel 3 can be transmitted to the mounting table 1 via the wire 4. Therefore, the mounting table 1 can be moved only by the worker WM pushing the transport carriage 100 and rotating the wheels 3. Further, since the guide mechanism 5 for guiding the mounting table 1 so as to move up and down at least a part of the mounting table 1 is provided, the worker WM simply presses the transport cart 100 and rotates the wheels 3 to rotate at least the mounting table 1. A part can be raised and lowered. Therefore, the work of loading and unloading the transported object B can be performed with good workability.

  In addition, according to the present embodiment, the guide mechanism 5 raises the + X side end of the mounting table 1 so that the mounting table 1 on which the object B is mounted is tilted. Without requiring extra force, the carriage 3 can be pushed in the + X direction to rotate the wheel 3 to raise the + X side end of the mounting table 1. Moreover, since the mounting table 1 is inclined so that a part of the transferred object B is lifted, the transferred object B is smoothly carried out of the mounted table 1.

  Further, according to the present embodiment, the guide mechanism 5 includes the guide groove 51 extending in the traveling direction of the carriage main body 2 and the guide groove 52 extending in the inclination direction, so that the worker WM can transport the carriage 100. The mounting table 1 can be tilted by pushing and moving the mounting table 1 via the wire 4 and moving the slide member 53 and the slide member 54 along the guide groove 51 and the guide groove 52, respectively. Moreover, the mounting table 1 can be smoothly inclined only by the force of the worker WM. Further, since the guide mechanism 5 includes a guide groove 51 extending in the horizontal direction (X-axis direction) and a guide groove 52 extending in the inclination direction, as shown in the schematic diagram of FIG. Simultaneously with the rise of the end on the + X side of B (mounting table 1), the entire conveyed object B can be moved in the + X direction. Thereby, even if the conveyed product B is inclined, the weight balance of the transport carriage 100 is suppressed from being lowered, and the work can be performed with good workability. In addition, since the + X side end of the object to be conveyed B is inclined so as to protrude from the carriage main body 2 in the + X direction, it is possible to smoothly carry out the object B to be conveyed from the mounting table 1. Further, in the present embodiment, since the support member 14 is disposed at a position opposite to the −X side end surface of the transported object B, the support is supported even if the + X side end of the transported object B rises. The object B can be supported by the member 14.

  In the present embodiment, since the pulley 43 and the pulley 44 that support the wire 4 are provided, for example, a part including the other end of the wire 4 connected to the fixed portion 42 is substantially parallel to the X-axis direction. can do. That is, the direction of the wire 4 with respect to the fixed part 42 can be adjusted by the pulley 43 and the pulley 44, and the direction of a part including the other end of the wire 4 connected to the fixed part 42 and the mounting table 1 are moved. You can get closer to the direction you want. Therefore, the rotational force of the wheel 3 can be efficiently converted into a force that moves the mounting table 1 in the X-axis direction. In the present embodiment, the wire 4 is supported by the two pulleys 43 and 44. The number of pulleys that support the wire 4 may be one, or three or more. When a plurality of pulleys that support the wire 4 are provided, the peripheral lengths (diameters) of the pulleys may be the same or different. In the present embodiment, the pulley is provided on the carriage main body 2. At least one of the pulleys that support the wire 4 may be provided on the mounting table 1. The same applies to the following embodiments.

  In the present embodiment, at least a part of the wire 4 may be supported by a gear instead of the pulley or together with the pulley. The wire 4 may have a plurality of recesses that mesh with the gear. Moreover, when the gear which supports the wire 4 is provided with two or more, the number of teeth of these gears may respectively be equal, and may differ. The gear may be provided on the mounting table 1 or may be provided on the cart body 2. The same applies to the following embodiments.

  In the present embodiment, one end of the wire 4 is fixed to the front wheel 3A or the shaft member 31A that supports the front wheel 3A, and at least a part of the wire 4 is wound. One end of the wire 4 may be fixed to the rear wheel 3B or the shaft member 31B that supports the rear wheel 3B, and at least a part of the wire 4 may be wound. The same applies to the following embodiments.

  In the present embodiment, when the shaft member 31 and the wheel 3 rotate together and at least a part of the mounting table 1 is not raised or lowered, the wire 4 is removed from the shaft member 31. As shown in FIG. 12, a clutch mechanism 70 that transmits and interrupts the rotational force of the wheel 3 to the shaft member 31 may be provided. In FIG. 12, one end portion of the wire 4 is fixed to the shaft member 31 by a fixing portion 41. When the mounting table 1 is not raised or lowered, the clutch mechanism 70 is operated so that the rotational force of the wheel 3 is not transmitted to the shaft member 31 as shown in FIG. When the mounting table 1 is moved up and down, the clutch mechanism 70 is operated so that the rotational force of the wheel 3 is transmitted to the shaft member 31 as shown in FIG. Thereby, even when at least a part of the mounting table 1 is not raised or lowered, the transport carriage 100 can be run with the wire 4 connected to the shaft member 31.

  In the above-described embodiment, one end of the wire 4 is fixed to the shaft member 31 that is disposed closer to the center of the carriage body 2 than the wheels 3. As shown in FIG. 13, a shaft member 34 may be provided outside the wheel 3, and a fixing portion 41 may be provided on the shaft member 34 so that one end of the wire 4 is fixed.

Second Embodiment
A second embodiment will be described. In the following description, the same or equivalent components as those in the above-described embodiment are denoted by the same reference numerals, and the description thereof is simplified or omitted.

  FIG. 14 is a schematic diagram illustrating an example of a transport carriage 100B according to the present embodiment. In FIG. 14, a transport cart 100B includes a mounting table 1 on which the object B is mounted, a cart body 2 on which the mounting table 1 is mounted, a wheel 3 that is rotatably supported by the cart body 2, and one end. The wire 4 is connected to the shaft member 31 (or the wheel 3), the other end is connected to the mounting table 1, and at least a part of the wire 4 is wound around the shaft member 31 (or the wheel 3) by the rotation of the wheel 3. A guide mechanism 40 is provided for guiding the mounting table 1 so that the mounting table 1 moves up and down by the movement of the other end of the wire 4 due to the rotation of the wheel 3. One end portion of the wire 4 is fixed to the shaft member 31 at the fixing portion 41, and the other end portion of the wire 4 is fixed to the mounting table 1 at the fixing portion 42.

  In the present embodiment, the wire 4 is supported by the pulley 43B, the pulley 44B, and the pulley 45B. The pulley 43B and the pulley 44B are attached to the carriage main body 2. The pulley 45 </ b> B is attached to a support member 46 fixed to the carriage main body 2. By supporting the wire 4 by the pulley 43B, the pulley 44B, and the pulley 45B, for example, a part including the other end of the wire 4 can be parallel to the Z axis.

  The guide mechanism 40 is provided in the carriage main body 2 and has a guide member 25B having a guide groove 51B extending in the Z-axis direction (vertical direction), and a slide member 53B provided in the mounting table 1 and moving in the guide groove 51B. The guide member 52B is provided in the carriage main body 2 and has a guide groove 52B extending in the Z-axis direction, and the slide member 54B is provided in the mounting table 1 and moves in the guide groove 52B.

  In a state where the wire 4 is not wound around the shaft member 31, the mounting table 1 is supported by the cart body 2. The upper surface of the mounting table 1 is parallel to the XY plane. When the transport cart 100 </ b> B is pushed by the worker WM and the wheel 3 rotates, the wire 4 is wound around the shaft member 31. Thereby, the other end part (fixed part 42) of the wire 4 moves (rises) in the + Z direction. In the present embodiment, the guide mechanism 40 guides the mounting table 1 so that the mounting table 1 rises while maintaining the state where the upper surface of the mounting table 1 is parallel to the XY plane.

  When the wheel 3 rotates so that the wire 4 wound around the shaft member 31 is released, the other end portion (fixed portion 42) of the wire 4 moves (lowers) in the -Z direction. In the present embodiment, the guide mechanism 40 guides the mounting table 1 so that the mounting table 1 is lowered while maintaining the upper surface of the mounting table 1 parallel to the XY plane.

  As described above, the mounting table 1 may be moved up and down while the movement of the mounting table 1 in the θY direction is suppressed.

  In each of the above-described embodiments, the wire 4 is wound up when the carrier trolley 100 (100B) is pushed by the worker WM and the wheel 3 rotates. When the mounting table 1 is moved up and down, for example, the worker WM may rotate the wheel 3 to wind the wire 4. For example, after lifting the transport carriage 100 so that the wheel 3 and the ground are separated using a tool called jack (after jacking up), the wheel 3 is manually rotated to wind the wire 4 Good.

<Third Embodiment>
A third embodiment will be described. FIG. 15 is a diagram illustrating an example of the wire 4 winding device 80 according to the present embodiment. In the present embodiment, an example in which the wire 4 is wound up by the winding device 80 that can be attached to the shaft member 34 </ b> C provided outside the wheel 3 will be described.

  The winding device 80 includes an inner ring member 81 that can be connected to the shaft member 34C, an outer ring member 82 that is disposed around the inner ring member 81 and is rotatable with respect to the inner ring member 81, and an inner ring member 81 and an outer ring member 82. And rolling elements 83 disposed therebetween. The inner ring member 81 has a recess 81K in which the shaft member 34C is disposed. The shaft member 34C and the inner ring member 81 are fixed by disposing at least a part of the shaft member 34C in the recess 81K. In the present embodiment, the shaft member 34C is provided with a corner, and the recess 81K has an inner surface having a shape along the corner of the shaft member 34C. Thereby, the fluctuation | variation of the relative position of 34 C of shaft members and the inner ring member 81 is suppressed.

  The outer ring member 82 disposed around the inner ring member 81 via the rolling elements 83 (bearings) is in a state where the shaft member 34C and the inner ring member 81 are fixed to the shaft member 34C and the inner ring member 81. It can be rotated. The outer ring member 82 is provided with an operation portion 84 that can be held (gripped) by the worker WM. The worker WM can hold the operation portion 84 and rotate the outer ring member 82.

  In the present embodiment, one end of the wire 4 is fixed to the outer ring member 82. One end portion of the wire 4 is fixed to the outer ring member 82 at the fixing portion 41, and the other end portion of the wire 4 is fixed to the mounting table 1. When the outer ring member 82 is rotated by the worker WM, at least a part of the wire 4 is wound around the outer ring member 82 by the rotation of the outer ring member 82. Thereby, the other end part of the wire 4 moves, and at least a part of the mounting table 1 is raised by the movement of the other end part of the wire 4. Further, when the outer ring member 82 is rotated so that the wire 4 wound around the outer ring member 82 is released, at least a part of the mounting table 1 is lowered.

  As described above, according to the present embodiment, the wire 4 can be wound by the winding device 80 that is releasably attached to the shaft member 34. In the present embodiment, as described in the above embodiments, one end of the wire 4 can be fixed to the wheel 3 (or the shaft member 31 or the shaft member 34). The worker WM selects at least one of the operation of winding the wire 4 by fixing one end of the wire 4 to the wheel 3 and pushing the transport carriage 100 and the operation of winding the wire 4 using the winding device 80. And at least one part of the mounting base 1 can be raised / lowered.

DESCRIPTION OF SYMBOLS 1 Mounting base 2 Carriage body 3 Wheel 4 Wire 5 Guide mechanism 43 Pulley 44 Pulley 51 Guide groove 52 Guide groove 53 Slide member 54 Slide member 100 Conveyance cart B Conveyed object

Claims (4)

A mounting table on which the object to be transported is mounted;
A cart body on which the mounting table is mounted;
A wheel rotatably supported by the cart body;
A wire that is partly connected to the table and the other part is wound by rotation of the wheel;
And a guide mechanism that guides the mounting table such that at least a part of the mounting table is moved up and down by the movement of the wire by the rotation of the wheel.   The transporting carriage according to claim 1, wherein the guide mechanism raises a part of the mounting table so that the mounting table on which the object to be transported is mounted is inclined. The guide mechanism is
A first guide groove provided in the carriage body and extending in a traveling direction of the carriage body;
A first slide member provided on the mounting table and moving in the first guide groove;
A second guide groove provided in the cart body and extending in a direction inclined with respect to the traveling direction;
The transport carriage according to claim 1, further comprising: a second slide member that is provided on the mounting table and moves in the second guide groove.   The conveyance cart according to any one of claims 1 to 3, further comprising a pulley that is attached to the cart body and supports the wire.

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