JP5498194B2 - Transport cart and transport method - Google Patents

Description

  The present invention relates to a transport carriage and a transport method for transporting a workpiece.

  When transporting a brake pipe to be assembled to a vehicle, a plurality of brake pipes are bundled and transported. At this time, in order to prevent dust and dirt from entering the brake pipe, a case or a bag is put on the end of the brake pipe (see, for example, Patent Document 1).

No. 7-35198

  As described above, when a plurality of brake pipes are bundled and transported, in the work space of the transport destination, the worker removes the case or bag from the end of each brake pipe and arranges the brake pipes according to the work procedure. There is a need. Therefore, the conventional transport method has a problem that the number of steps after transporting the brake pipe increases, and the work efficiency decreases. In addition, since a plurality of brake pipes are bundled, when the brake pipes are taken out, the brake pipes may interfere with each other or get entangled with each other, and the brake pipes may be deformed or damaged.

  Therefore, in the present invention, the above-described problems are solved, dust and dirt are prevented from adhering to the workpiece, and a plurality of workpieces can be transported in an aligned state, so that deformation and scratches are caused on the workpiece. It is an object to provide a transport carriage and a transport method that can be prevented.

In order to solve the above-mentioned problem, the present invention is a transport carriage, and includes a first transport carriage having an accommodation space covered by a shielding member, and an openable / closable opening provided in a part of the shielding member. A second transport carriage that can be inserted into and removed from the housing space. The second transport carriage includes a base, a support that is erected on the base, and left and right sides of the base from the side of the support. A workpiece mounting member that extends in a direction and is arranged in the front-rear direction of the base, and a workpiece clamping member that is detachable from the workpiece mounting member, and the workpiece mounting member And the workpiece | work mounted on the said workpiece | work mounting member is clamped by the said workpiece | work clamping member attached to the said workpiece | work mounting member . The workpiece placement member and the workpiece clamping member are rod-shaped members, and the workpiece clamping member is disposed in parallel along the workpiece placement member and is rotatable about the axis of the workpiece placement member. It attaches to the said workpiece | work mounting member via a connecting member.
Note that the front / rear and left / right directions of the base are directions set in order to specify the arrangement of the workpiece mounting members, and do not limit the configuration of the entire transport carriage (for example, the traveling direction).

  Further, the present invention is a workpiece transfer method using the above-described transfer carriage, wherein the workpiece is placed on a pair of workpiece placement members provided on the second transfer carriage, and each of the works Attaching the workpiece holding member to the mounting member, holding the workpiece by the workpiece mounting member and the workpiece holding member, and setting the second transfer carriage to the first transfer carriage And storing the second transfer carriage in the storage space and fixing the second transfer carriage to the first transfer carriage.

In the above-described transfer carriage and transfer method, since the second transfer carriage on which the workpiece is mounted can be transferred in the state of being accommodated in the first transfer carriage, it is possible to prevent dust and dirt from adhering to the workpiece. Therefore, since it is not necessary to cover the work with a case or bag, it is possible to reduce man-hours after conveyance and to eliminate consumables such as strings and stoppers.
In particular, the present invention is effective when applied to a cylindrical workpiece having an open end, such as a brake pipe, and can prevent dust and dirt from entering the cylindrical workpiece.
Moreover, a some workpiece | work can be conveyed in the state which aligned and fixed on the workpiece mounting member. Therefore, the work can be transported stably and aligned in accordance with the work procedure, and the work can be sequentially taken out and used after the transport, so that the man-hours after transport can be reduced. In addition, while the work is fixed on the work placing member, the transport carriage can be moved to the work space, and the work can be taken out from the work placing member and used. Efficiency can be increased.
Further, by fixing the work on the work placing member, the work can be transported in a stable and aligned state so that the works are not entangled with each other. And when using a workpiece, since the workpieces arranged on the workpiece mounting member are sequentially taken out, the workpieces can be prevented from interfering with each other and entangled with each other. It can be prevented from occurring. Therefore, a plurality of workpieces can be conveyed together without deteriorating the external shape quality of the workpieces.

  In this configuration, the workpiece holding member attached to the workpiece placement member via the connecting member can be revolved around the axis of the workpiece placement member. When the workpiece holding member disposed above the workpiece mounting member is revolved around the workpiece mounting member, the vertical distance between the workpiece mounting member and the workpiece holding member is reduced. The workpiece can be securely held by the workpiece placing member and the workpiece holding member. Accordingly, since the workpiece can be prevented from shaking on the workpiece placing member due to vibration during conveyance, the workpieces can be prevented from interfering with each other and entangled with each other, and deformation and scratches can be prevented from occurring in the workpiece. be able to.

In the transport carriage and the transport method of the present invention, it is possible to prevent dust and dirt from adhering to the workpiece by transporting the second transport carriage in a state where it is accommodated in the first transport carriage. In addition to the reduction, consumables such as strings and stoppers can be eliminated.
In addition, since a plurality of workpieces can be transported while being aligned and fixed on the workpiece mounting member, the number of man-hours after transport can be reduced, and the workpieces can be prevented from interfering with each other and entangled. It is possible to prevent the workpiece from being deformed or scratched.

It is the perspective view which showed the conveyance trolley | bogie of this embodiment. It is the perspective view which showed the 1st conveyance trolley | bogie of this embodiment. It is the perspective view which showed the 2nd conveyance trolley | bogie of this embodiment. It is the perspective view which showed the connection member of this embodiment. It is the figure which showed the 2nd conveyance trolley | bogie of this embodiment, (a) is a perspective view of the state which mounted the brake pipe in the workpiece mounting member, (b) is a brake pipe by a workpiece mounting member and a workpiece clamping member. It is a perspective view of the state which pinched. It is the figure which showed the connection member of this embodiment, (a) is a side view, (b) is a side view when rotating a connection member. It is the figure which showed the connection member of other embodiment, and is a perspective view of the structure by which the external fitting part of a connection member is attached to a workpiece | work mounting member.

Next, embodiments of the present invention will be described in detail with reference to the drawings as appropriate.
In the present embodiment, a description will be given by taking, as an example, a transport carriage and a transport method for transporting a brake pipe assembled to a vehicle from a storage space to a work space provided in an assembly line of the vehicle.
In the following description, the up, down, front, back, left, and right directions correspond to the up, down, front, back, left, and right directions shown in the drawings.

  As shown in FIG. 1, the transport cart 1 according to the present embodiment includes a first transport cart 10 having a storage space 15 and a second transport cart 20 that can be taken into and out of the storage space 15.

As shown in FIG. 2, the first transport carriage 10 includes a rectangular bottom plate 11 that is wide in the left-right direction, an outer frame 12 provided on the upper surface 11 b of the bottom plate 11, a rear portion, left and right side portions, and an upper portion of the outer frame 12 And four shielding plates 13 attached to the outer frame 12 and a shielding sheet 14 attached to the front portion of the outer frame 12.
Casters 11a are respectively attached to the four corners of the lower surface of the bottom plate 11, and an operator can run the first transport carriage 10 by hand.
Further, a flap (not shown) is accommodated in the lower surface of the bottom plate 11, and the upper surface 11b of the bottom plate 11 is connected to the floor surface of the storage space or work space by pulling the flap forward and tilting. An inclined surface can be provided.

  The outer frame 12 includes vertical frame members 12e erected vertically at the four corners of the upper surface 11b of the bottom plate 11, upper end horizontal frame members 12f erected on the upper ends of the vertical frame members 12e, and rear and left and right sides. An intermediate horizontal frame member 12g erected at the intermediate portion in the height direction of each vertical frame member 12e, and fixing frame members 12h and 12h erected perpendicularly to the left and right edges of the upper surface 11b of the bottom plate 11 This is a rectangular parallelepiped framework.

The upper opening 12a, the left and right openings 12b and 12b, and the rear opening 12d of the outer frame 12 are closed by a transparent acrylic resin shielding plate 13. Further, the opening 12c on the front side of the outer frame 12 is closed by a transparent vinyl chloride shielding sheet 14.
The accommodation space 15 formed inside the outer frame 12 is a space that is sealed by being covered with the shielding plates 13 and the shielding sheet 14. The shielding plate 13 and the shielding sheet 14 correspond to “shielding members” in the claims.

In the outer frame 12, a plurality of hook-and-loop fasteners 16 are attached to the front surfaces of the upper edge and the left and right edges of the opening 12 c on the front side. On the other hand, a plurality of surface fasteners 17 to be joined to the respective surface fasteners 16 of the outer frame 12 are attached to the inner surface of the shielding sheet 14, and the shielding sheet 14 is attached to the outer frame 12 by joining the surface fasteners 16, 17. It is attached to the front part.
When opening the opening 12c on the front side of the outer frame 12 closed by the shielding sheet 14, the shielding sheet 14 is peeled off by pulling the shielding sheet 14 forward to peel off the hook-and-loop fasteners 16 and 17. It can be removed from the front part of the outer frame 12.
The number and interval of the hook-and-loop fasteners 16 and 17 are set in consideration of the adhesion between the shielding sheet 14 and the outer frame 12 when the shielding sheet 14 is attached to the front portion of the outer frame 12.
The shielding sheet 14 removed from the front portion of the outer frame 12 can be held on the outer surface of the outer frame 12 by being joined to a hook-and-loop fastener (not shown) provided on the rear portion and the left and right side portions of the outer frame 12. it can.

The fixing frame members 12h and 12h of the outer frame 12 are erected vertically on the left and right edges of the upper surface 11b of the bottom plate 11 in front of the middle portion in the front-rear direction. A connecting portion 12i to which both ends of the fixing member 18 are attached is provided below the fixing frame members 12h and 12h.
The fixing member 18 is a rod-shaped member, and both end portions thereof are detachable from the connecting portion 12i. The fixing member 18 is attached with two fixing bands 18 a and 18 a that are fastened to a base 21 of the second transport carriage 20 described later.

As shown in FIG. 3, the second transport cart 20 includes a base 21 that is a rectangular frame that is wide in the left-right direction, two front and rear columns 22, 22 erected on the base 21, and each column. A plurality of work placement members 30 supported by 22 and 22 and a plurality of work holding members 40 attached to each work placement member 30 are provided. Casters 21 a are respectively attached to the four corners of the lower surface of the base 21, and the operator can run the second transport carriage 20 by hand.
As shown in FIG. 1, the second transport carriage 20 is formed in a size that can be taken into and out of the accommodation space 15 through the opening 12 c on the front side of the outer frame 12 of the first transport carriage 10.

As shown in FIG. 3, the support column 22 is erected vertically at the intermediate portion in the left-right direction at the front edge portion and the rear edge portion of the base 21.
The support column 22 is composed of two rod-shaped members arranged in parallel on the left and right. Between each support | pillar 22 and 22, the beam member 22a of the front-back direction is constructed by the upper end part, the intermediate part, and the lower end part.

  The workpiece mounting member 30 is a rod-shaped member having a circular cross section, and a base end portion is attached to a side portion of the support column 22 and extends horizontally from the side portion of the support column 22 toward one side in the left-right direction. Yes. The workpiece placement member 30 is set to have an axial length so that the tip portion does not protrude outward from the left and right edge portions 21 b and 21 b of the base 21.

  A base end portion of the workpiece placement member 30 is attached to the support column 22 via a connection fitting 31. The connection fitting 31 is an annular component that is externally fitted to the support column 22, and a cylindrical fitting portion into which the proximal end portion of the workpiece placement member 30 is inserted is formed on the side portion. The connection fitting 31 is attached to the column 22 by a fastening member such as a bolt, and can be moved in the height direction of the column 22. Therefore, the height of the workpiece mounting member 30 can be adjusted by changing the attachment position of the connection fitting 31.

Two workpiece placement members 30, 30 are attached to the upper and lower portions of the front column 22, respectively. That is, four workpiece placement members 30 are attached to the front column 22 in the vertical and horizontal directions. In addition, four workpiece mounting members 30 are attached to the rear support column 22 in the vertical and horizontal directions.
Each workpiece placement member 30 of the front column 22 and each workpiece placement member 30 of the rear column 22 are arranged in parallel to each other at the same height. Thus, the two workpiece mounting members 30 and 30 are arranged in pairs in the front-rear direction (lateral direction). In the second transport cart 20 of the present embodiment, four pairs of front and rear work placing members 30, 30 are provided on the top, bottom, left, and right.

The workpiece holding member 40 is a rod-shaped member having a circular cross section, and is disposed in parallel with the workpiece mounting member 30 in parallel. The workpiece clamping member 40 is attached to the workpiece mounting member 30 via two connecting members 50 and 50. The axial length of the workpiece holding member 40 is shorter than the axial length of the workpiece mounting member 30.
In the present embodiment, one workpiece holding member 40 is attached to each of the eight workpiece placing members 30 attached to each support column 22, and the eight workpiece holding members 40 are provided. Is provided.

  As shown in FIG. 4, the connecting member 50 has an outer fitting portion 51 that is fitted on the workpiece holding member 40 at the upper portion, and a holding portion 52 that is held on the outer peripheral surface of the workpiece placing member 30 at the lower portion. Is formed. A reinforcing rib 53 (see FIG. 6A) is formed on the outer surface between the outer fitting portion 51 and the holding portion 52.

  The external fitting portion 51 is a cylindrical portion that is externally fitted to the workpiece clamping member 40, and can be slid in the axial direction of the workpiece clamping member 40 while being fitted to the workpiece clamping member 40. ing.

  The holding | maintenance part 52 is a C-shaped curved part partly cut off by the groove part 52a formed in the side part (refer Fig.6 (a)). The holding portion 52 is a portion fitted to the outer peripheral surface of the work placing member 30, and can be attached to and detached from the outer peripheral surface of the work placing member 30 by inserting and removing the work placing member 30 through the groove 52 a. It has become. Further, the holding portion 52 is fitted on the outer peripheral surface of the workpiece placement member 30 in a state of being rotatable around the axis of the workpiece placement member 30.

  In addition, in the connecting member 50, as shown in FIG. 6A, the vertical interval H between the workpiece placing member 30 and the workpiece holding member 40 arranged vertically via the connecting member 50 will be described later. The outer fitting portion 51 and the holding portion 52 are arranged at an interval so as to be larger than the diameter of the pipe body W1 of the brake pipe W (see FIG. 5A).

  As shown in FIG. 6A, from the state in which the holding portion 52 of the connecting member 50 is fitted to the outer peripheral surface of the workpiece placement member 30, and the workpiece placement member 30 and the workpiece holding member 40 are vertically arranged. As shown in FIG. 6B, when the connecting member 50 is rotated (tilted) around the axis of the workpiece placement member 30, the workpiece holding member 40 inserted through the outer fitting portion 51 is placed on the workpiece placement. Revolves around the axis of the member 30. Thereby, the workpiece holding member 40 moves obliquely downward, and the vertical interval H ′ between the workpiece mounting member 30 and the workpiece holding member 40 is before the connecting member 50 is rotated. It becomes smaller than the space | interval H (refer Fig.6 (a)) of the workpiece | work mounting member 30 and the workpiece | work clamping member 40. FIG.

Next, a method for transporting the brake pipe W using the transport carriage 1 will be described.
The brake pipe W shown in FIG. 5A is a metal cylindrical part having both ends opened. The brake pipe W is formed with enlarged diameter portions W2 and W2 at both ends of a pipe body W1 curved in accordance with the vehicle body shape, and the enlarged diameter portions W2 and W2 are connected to a brake fluid path on the vehicle side. In the present embodiment, a plurality of brake pipes W are mounted on the transport carriage 1 and transported.

  First, the 2nd conveyance trolley 20 shown in FIG. 3 is arrange | positioned independently on the floor surface of the storage space of components. At this time, the workpiece holding member 40 is removed from each workpiece placement member 30 of the second conveyance carriage 20, and each workpiece clamping member 40 is a storage case provided on the base 21 of the second conveyance carriage 20. (Not shown).

As shown in FIG. 5A, a plurality of brake pipes W are placed on a pair of front and rear work placing members 30 and 30. Specifically, the axial direction of the pipe body W1 is arranged in the front-rear direction, and the front part and the rear part of the pipe body W1 are placed on the workpiece placement members 30 and 30, respectively. Thereby, each enlarged diameter part W2, W2 is arrange | positioned rather than the workpiece | work mounting member 30 (front side, rear side).
Thus, the brake pipe W on each workpiece | work mounting member 30 and 30 can be stabilized by supporting the both ends of the axial direction of the long brake pipe W with a pair of workpiece | work mounting member 30 and 30. FIG. it can.

  When arranging a plurality of brake pipes W on the pair of workpiece placement members 30, 30, the tip side (front side) of the workpiece placement member 30 is matched to the assembly order (work procedure) of each brake pipe W after conveyance. The brake pipes W are arranged on the base end side.

  After the predetermined number of brake pipes W are placed on the pair of workpiece placing members 30 and 30, the workpiece holding member 40 is placed in parallel with the workpiece placing member 30 as shown in FIG. Deploy. At this time, each connecting member 50 is arranged so that the two connecting members 50, 50 attached to the workpiece holding member 40 are arranged on both sides of each brake pipe W placed on the work placing member 30. , 50 is adjusted.

Then, the work holding member 40 is attached to the work placement member 30 by fitting the holding portions 52, 52 of the connection members 50, 50 to the outer peripheral surface of the work placement member 30. As a result, the brake pipes W are sandwiched between the workpiece placing member 30 and the workpiece holding member 40 disposed above and below.
As illustrated in FIG. 6B, the connection member 50 is rotated (tilted) around the workpiece placement member 30, and the workpiece holding member 40 is moved obliquely downward to move the workpiece placement member 30. And the vertical gap H ′ between the workpiece clamping member 40 and the workpiece clamping member 40 are reduced. Thereby, the workpiece clamping member 40 comes into contact with each brake pipe W (see FIG. 5B) from above, and each brake pipe W is securely clamped by the workpiece mounting member 30 and the workpiece clamping member 40. The
In FIG. 6B, the connecting member 50 is rotated clockwise. However, even when the connecting member 50 is rotated counterclockwise, the workpiece holding member 40 is inclined downward. Therefore, the vertical distance H ′ between the workpiece placing member 30 and the workpiece holding member 40 can be reduced, and the brake pipe W can be moved by the workpiece placing member 30 and the workpiece holding member 40. Can be pinched.

  As shown in FIG. 5B, each brake pipe W placed on the pair of work placement members 30, 30 is sandwiched between the work placement member 30 and the work sandwiching member 40, and The connecting members 50 are respectively disposed on both sides of the entire brake pipe W in the width direction. Therefore, the brake pipes W can be kept in the order of assembly on the work placement members 30 and 30 without changing their order. In addition, since the brake pipe W is securely held by the workpiece mounting member 30 and the workpiece clamping member 40, the brake pipe W is swayed on each workpiece mounting member 30, 30 due to vibration during conveyance. Can be prevented. Therefore, the brake pipes W can be prevented from interfering with each other and entangled with each other, and deformation and scratches can be prevented from occurring in the brake pipe W.

2 is moved to the vicinity of the second transport carriage 20 on which the brake pipe W is mounted, and the shielding sheet 14 attached to the front portion of the outer frame 12 of the first transport carriage 10 is removed. The opening 12c on the front side of the outer frame 12 is opened. Further, the fixing member 18 is removed from the connecting portion 12i of the fixing frame members 12h and 12h.
Further, a flap (not shown) is pulled out from the bottom surface of the bottom plate 11 of the first transport carriage 10 to provide an inclined surface that connects the top surface 11b of the bottom plate 11 and the floor surface of the storage space.
As shown in FIG. 1, the second transport carriage 20 is moved from the front opening 12 c of the outer frame 12 into the accommodation space 15 using the inclined surface of the flap. In addition, after moving the 2nd conveyance trolley 20 in the accommodation space 15 of the 1st conveyance trolley 10, a flap (not shown) is stored in the lower surface of the bottom plate 11 of the 1st conveyance trolley 10. FIG.

  Both ends of the fixing member 18 are attached to the connecting portions 12 i of the fixing frame members 12 h and 12 h of the outer frame 12 in front of the second transport carriage 20 accommodated in the accommodating space 15. Further, the fixing bands 18 a and 18 a provided on the fixing member 18 are fastened to the front edge portion of the base 21 of the second conveyance carriage 20, and the second conveyance carriage 20 is fixed to the first conveyance carriage 10.

  The shielding sheet 14 is attached to the front portion of the outer frame 12 of the first transport carriage 10, and the opening space 12 c on the front side of the outer frame 12 is closed to seal the accommodation space 15. In this manner, with the second transport carriage 20 accommodated in the sealed accommodation space 15, the transport carriage 1 is loaded on the loading platform of a transport vehicle such as a truck and transported to a factory where the vehicle assembly operation is performed.

  In the factory of the transfer destination, the transfer carriage 1 is lowered from the transfer vehicle, and the first transfer carriage 10 is moved to a work space where the assembly work of the brake pipe W is performed. In the work space, the shielding sheet 14 is removed from the front portion of the outer frame 12 of the first transport carriage 10, and the opening 12 c on the front side of the outer frame 12 is opened. The removed shielding sheet 14 is held on the outer surface of the rear part of the outer frame 12 or the left and right side parts.

The fixing bands 18a and 18a of the fixing member 18 are removed from the base 21 of the second transport carriage 20, and the fixing member 18 is removed from the fixing frame members 12h and 12h.
In addition, a flap (not shown) is pulled out from the lower surface of the bottom plate 11 of the first transport carriage 10, and an inclined surface is provided to connect the upper surface 11b of the bottom plate 11 and the floor surface of the storage space. The second transport carriage 20 is carried out from the opening 12c on the front side of the frame 12.

  After the second transport carriage 20 is disposed at a predetermined position in the work space, the holding portion 52 of the connecting member 50 shown in FIG. 5B is removed from the work placing member 30 and the work holding member 40 is placed on the work. Remove from the mounting member 30. The removed workpiece clamping member 40 is accommodated in a storage case (not shown) provided in the second transport carriage 20.

  When the vehicle to be assembled is transported on the line, the operator takes out the brake pipe W from the workpiece placement members 30 and 30 shown in FIG. At this time, since the brake pipes W are arranged in order from the front side (the front end side of the work placement member 30) on the work placement members 30 and 30 in accordance with the assembly order, W can be sequentially taken out from the front side and assembled to the vehicle. In addition, since the brake pipe W is taken out from the work placement members 30 and 30 of the second transport carriage 20 moved to the work space and used, the brake pipe W can be reliably protected and work efficiency can be improved. it can.

  According to the conveying cart 1 and the conveying method configured as described above, the second conveying cart 20 on which the brake pipe W is mounted can be conveyed in a state of being accommodated in the first conveying cart 10 as shown in FIG. Therefore, dust and dirt can be prevented from entering the brake pipe W. Therefore, in this embodiment, since it is not necessary to cover the end of the brake pipe W with a case or a bag, it is possible to reduce man-hours after conveyance and eliminate consumables such as strings and stoppers.

  Also, by transporting a plurality of brake pipes W in a state of being aligned and fixed in order of assembly, the brake pipes W can be transported stably and in line with the work procedure. Since it can be taken out sequentially from the side and used, the man-hours after conveyance can be reduced.

  Further, by fixing the plurality of brake pipes W on the workpiece placement members 30 and 30, the brake pipes W can be transported in a stable and aligned state so that the brake pipes W are not entangled. Therefore, when using the brake pipe W, the brake pipes W aligned on the workpiece mounting members 30 and 30 are sequentially taken out, so that the brake pipes W are prevented from interfering and entangled with each other. It is possible to prevent the brake pipe W from being deformed or damaged. Therefore, a plurality of brake pipes W can be transported together without deteriorating the external quality of the brake pipes W.

The embodiment of the present invention has been described above, but the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the spirit of the present invention.
For example, as shown in FIG. 6A, the connection member 50 of the present embodiment has an outer fitting portion 51 that is fitted on the workpiece holding member 40 at the top, and is formed on the outer peripheral surface of the workpiece placement member 30. The holding portion 52 to be fitted is formed at the lower portion, but a holding portion 62 to be fitted to the outer peripheral surface of the workpiece holding member 40 is formed at the upper portion as in the connecting member 60 shown in FIG. An external fitting portion 61 that is externally fitted to the member 30 may be formed in the lower portion.

Moreover, in the 2nd conveyance trolley 20 of this embodiment, as shown in FIG. 3, although four pairs of front-back pair workpiece | work mounting members 30 and 30 are provided in the up-down and left-right, the number of the workpiece mounting members 30 or The attachment position is not limited and can be set according to the number of brake pipes W to be conveyed.
In the present embodiment, a pair of front and rear work placement members 30 and 30 are provided, but a pair of left and right work placement members 30 are arranged by arranging the two work placement members 30 and 30 in the left-right direction. , 30 may be configured.
Further, in the second transport cart 20 of the present embodiment, the two support columns 22 and 22 are provided. However, one support column 22 is erected at the center portion of the base 21, and the front and rear direction from the support column 22. A pair of work placement members 30, 30 may be provided on the extended portion that is extended.

Moreover, in the 1st conveyance trolley | bogie 10 of this embodiment, as shown in FIG. 2, although the shielding board 13 is attached to the upper part of the outer frame 12, the rear part, and the right-and-left side part, the upper part of the outer frame 12, a rear part, You may attach the same sheet-like member as the shielding sheet 14 to the left-right part.
Further, although the entire shielding plate 13 and shielding sheet 14 may be opaque, it is preferable to form a transparent window part in a part so that the inside of the accommodation space 15 can be seen.
Moreover, the shielding sheet 14 can be attached to the outer frame 12 using various coupling means such as a snap fastener or a slide fastener.

  Moreover, in the conveyance cart 1 of this embodiment, as shown in FIG. 1, although the brake pipe W is made into the conveyance object, the workpiece | work of conveyance object is not limited, Various work is made into a pair of workpiece mounting member For example, a long member having flexibility such as a brake hose can be transported. In addition, when a workpiece | work is large in the front-back direction, the stability of a workpiece | work can also be improved by providing another workpiece mounting member between a pair of workpiece mounting members 30 and 30. FIG.

DESCRIPTION OF SYMBOLS 1 Transfer trolley 10 First transfer trolley 11 Bottom plate 12 Outer frame 13 Shield plate 14 Shielding sheet 15 Storage space 16 Surface fastener 17 Surface fastener 18 Fixing member 18a Fixing band 20 Second transfer cart 21 Base 22 Strut 30 Work placement Member 40 Work clamping member 50 Connecting member 51 External fitting portion 52 Holding portion W Brake pipe W1 Pipe body W2 Expanded portion

Claims (3)

A first transport carriage having an accommodation space covered by a shielding member;
A second transport carriage that can be freely inserted into and removed from the accommodation space through an openable / closable opening provided in a part of the shielding member,
The second transport carriage is
The base,
A column erected on the base;
A pair of work placement members extending from the side of the support column in the left-right direction of the base and arranged in the front-rear direction of the base;
A workpiece holding member detachably attached to the workpiece mounting member,
The workpiece placed on the workpiece placement member is sandwiched by the workpiece placement member and the workpiece sandwiching member attached to the workpiece placement member ,
The workpiece placement member and the workpiece clamping member are rod-shaped members,
The workpiece holding member is disposed in parallel along the workpiece mounting member, and is attached to the workpiece mounting member via a connecting member that is rotatable around an axis of the workpiece mounting member. Conveyor cart. 2. The transport cart according to claim 1, wherein the workpiece is a cylindrical member having an open end. A method for transporting a workpiece using the transport carriage according to claim 1 or 2 ,
Placing the workpiece on a pair of workpiece placement members provided on the second transport carriage;
Attaching the workpiece clamping member to each workpiece mounting member, and clamping the workpiece by the workpiece mounting member and the workpiece clamping member;
Storing the second transport cart in the housing space of the first transport cart, and fixing the second transport cart to the first transport cart;
A conveying method characterized by comprising:

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