JP2011005970A - Carriage - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve load efficiency and storage efficiency in transporting or storing a plurality of carriages by constituting the carriage to be further disassembled in a pair of pedestals and a connection member in the nestable carriage equipped with a planar H-shaped truck.SOLUTION: The carriage includes: a pair of pedestals 1A, 1B equipped with moving wheels 2 on the bottom, respectively; the connection member 3 for connecting both of the pedestals 1A, 1B; side panels 4A, 4B erected on each of the pedestals 1A, 1B; and a loading platform 7 arranged between both of the panels 4A, 4B, in which both ends are supported by the pedestals 1A, 1B. In the carriage, tubular bodies 6A, 6B in which an installation column 5 of the side panels 4A, 4B is inserted so as to be taken out and put in are arranged in each of the pedestals 1A, 1B. Both ends of the connection member 3 and each of the pedestals 1A, 1B are detachably coupled by bolts.

Description

  The present invention provides a pair of mounts each provided with a moving wheel on the lower side, a connecting member for connecting both mounts, a side panel standing on each mount, and supported on the connecting member between both side panels. The present invention relates to a transporting carriage provided with a loading platform, each of which is provided with a cylindrical body into which a mounting column for a side panel is inserted.

  As described in Patent Document 1, this type of transport cart is a cart portion formed by integrally connecting a pair of mounts each having a cylindrical body into which a support column for mounting a side panel is inserted by a connecting member. A pair of side panels and a single cargo bed are combined, and the cart part is integrally manufactured so as not to be disassembled by welding or the like.

Japanese Patent Laid-Open No. 10-305705

  As described above, in the case where the cart unit is integrally manufactured so as not to be disassembled by welding or the like, even if the moving wheels can be removed from the gantry unit at both ends of the coupling member, the rod-shaped coupling member Since the pedestal part projects from both ends to the left and right sides, and the flat shape is an H-type trolley part, useless space is required when transporting it on a loading platform such as a truck or storing it in a warehouse. It was very difficult to make the loading efficiency and storage efficiency as small as possible.

  The present invention proposes a transport carriage capable of solving the above-described conventional problems, and the transport carriage according to the present invention described in claim 1 is denoted by the reference numerals of the embodiments described later. When attached, a pair of mounts 1A and 1B each provided with a moving wheel 2 on the lower side, a connecting member 3 for connecting both mounts 1A and 1B, and a side erected on each mount 1A and 1B A cylindrical body 6A having a panel 4A, 4B and a loading platform 7 disposed between both side panels 4A, 4B, into which the support columns 5 for mounting the side panels 4A, 4B are detachably inserted. In the transport cart provided with 6B, both end portions of the connecting member 3 and the mounts 1A and 1B are detachably coupled by bolts 42.

  When carrying out the present invention, specifically, as described in claim 2, the cylindrical bodies 6 </ b> A and 6 </ b> B can be fixed to and integrated with both ends of the connecting member 3 by welding or the like. According to a third aspect of the present invention, the bases 1A and 1B are provided with a main recess 23 into which mounting seats 39 projecting on both lower sides of the connecting member 3 are fitted. A bolt 42 for fixing the mounting seat 39 of the connected connecting member 3 can be provided. Further, the cylindrical bodies 6A and 6B are fixedly integrated with a connecting member 3 that is detachable with respect to the gantry 1A and 1B, or detachably attached to the gantry 1A and 1B separately from the connecting member 3. In this case, as described in claim 4, the mounts 1A and 1B are provided with sub-recesses 25 and 57 into which the lower ends of the cylindrical bodies 6A and 6B are inserted, and are inserted into the sub-recesses 25 and 57. Bolts 38 and 65 for fixing the cylindrical bodies 6A and 6B can be provided.

  In addition, as described in claim 5, the mounts 1 </ b> A and 1 </ b> B include a metal main body 11 to which the moving wheel 2 is bolted, and a synthetic resin exterior body 12 that covers the metal main body 11. The connecting member 3 can be bolted to the metal main body 11. In this case, as described in claim 6, the gantry 1A, 1B is provided with a main recess 23 into which mounting seats 39 projecting on both lower sides of the connecting member 3 are fitted, and the metal main body Reference numeral 11 denotes a structure having a gate-shaped cross-section portion (top plate portion 13c) that is open to the lower side, and an upper surface of the gate-shaped cross-section portion (top plate portion 13c) of the metal main body 11 at the lower end of the mounting seat 39. A horizontal plate portion 40 with a screw hole that comes into contact with the screw is provided, and a bolt 42 that passes through the gate-shaped cross section (top plate portion 13c) of the metal main body 11 upward from below is provided with a horizontal plate with a screw hole of the mounting seat 39. It can be screwed and fastened to the screw hole 41 of the plate part 40. Further, the cylindrical bodies 6A and 6B are fixedly integrated with a connecting member 3 that is detachable with respect to the gantry 1A and 1B, or detachably attached to the gantry 1A and 1B separately from the connecting member 3. In this case, as described in claim 7, the mounts 1A and 1B are provided with sub-recesses 25 into which the lower ends of the cylindrical bodies 6A and 6B are inserted, and the metal main body 11 is opened downward. The cylindrical body 6A, 6B is in contact with the upper surface of the portal cross section (top plate portion 13c) of the metal main body 11 at a lower end of the cylindrical body 6A, 6B. A horizontal plate portion 35 with a screw hole is provided, and a bolt 38 penetrating upward from the lower side of the gate-shaped cross section (top plate portion 13c) of the metal main body 11 is provided with a horizontal hole with a screw hole of the cylindrical bodies 6A and 6B. It can be screwed into the screw hole 36 of the plate part 35.

  Further, as described in claim 8, when the mounting seat 39 of the connecting member 3 is mounted on the mounts 1A and 1B, the lower surface of the connecting member 3 is the synthetic resin exterior body 12. Protrusions 22 and 24 that support the lower surface of the connecting member 3 can be integrally formed on the synthetic resin exterior body 12 so as to be higher than the surface by a certain height.

  Further, as described in claim 9, the synthetic resin exterior body 12 of the gantry 1A, 1B includes at least a side surface of the cylindrical bodies 6A, 6B attached to the gantry 1A, 1B during nesting. The vertical wall part 26 which covers the side surface which adjoins the said connection member 3 of another conveyance trolley can be integrally protruded. In this case, as described in claim 10, the vertical wall portion 26 is formed in a U shape in a planar shape covering three side surfaces excluding the side where the connecting member 3 of the cylindrical bodies 6 </ b> A, 6 </ b> B is present. The support columns 5 for mounting the side panels 4A and 4B inserted into the cylindrical bodies 6A and 6B are fastened by bolt nuts 46 and 47 passing through the vertical wall portion 26 and the cylindrical bodies 6A and 6B in the frame length direction. The vertical wall 26 is formed with a recess 28 in which both ends of the bolt nuts 46 and 47 are fitted, and at least a recess (on the side adjacent to the connecting member 3 of the other transport carriage at the time of nesting) The concave portion 28) of the side wall portion 26a can have a depth at which the end portions (bolt head portions 46a) of the bolt nuts 46 and 47 fitted inside thereof do not protrude out of the concave portion 28. Further, as described in claim 11, on one end side in the length direction of the gantry 1 </ b> A, 1 </ b> B, the synthetic resin exterior body 12 is integrally formed with a protruding portion 10 that regulates the nesting direction between the transport carriages. can do.

  Furthermore, as described in claim 12, the gantry 1A, 1B is entirely made of synthetic resin, and forms a reinforcing plate insertion groove 61 that opens downward along the gantry length direction. Both ends of the inserted reinforcing plate insertion groove 61 are closed with mounting seats 31 of the moving wheels 2 bolted to the lower sides of both ends of the mounts 1A and 1B, and the reinforcing plate 51 is mounted on the mounts 1A and 1B. Can be bolted. In this case, the cylindrical bodies 6A and 6B are fixedly integrated with the connecting member 3 that can be attached to and detached from the mounts 1A and 1B, or can be attached to and detached from the mounts 1A and 1B separately from the connecting member 3. When configured, as described in claim 13, the gantry 1 </ b> A, 1 </ b> B has a sub-recess portion 57 into which the lower ends of the cylindrical bodies 6 </ b> A, 6 </ b> B are inserted, and a tubular shape fitted to the sub-recess portion 57. Bolts 65 for fixing the bodies 6A and 6B are provided, and the reinforcing plate 51 can be fixed to the mounts 1A and 1B by the bolts 65 for fixing the cylindrical bodies 6A and 6B. Specifically, as described in claim 14, the reinforcing plate insertion groove portion 61 is disposed so as to be adjacent to the cylindrical wall portion 50 c inside the gantry forming the sub-recessed portion 57, and the reinforcing plate 51. Is provided with a screw hole 62 penetrating horizontally, and the cylindrical wall portion 50c inside the gantry forming the sub-recess 57 and the cylindrical bodies 6A and 6B inserted into the sub-recess 57 from the outside. Bolts 65 penetrating horizontally in the direction can be screwed into the screw holes 62 of the reinforcing plate 51.

  Further, according to the fifteenth aspect of the present invention, the synthetic resin bases 1A and 1B (synthetic resin main body 50) include at least one of the side surfaces of the cylindrical bodies 6A and 6B at the time of nesting. The vertical wall part 26 which covers the side surface adjacent to the said connection member 3 can be integrally protruded, and the synthetic resin stand 1A, 1B (synthetic resin main body 50) as described in Claim 16. ) Can be integrally formed with a protrusion 10 that restricts the nesting direction of the transport carts.

  According to the configuration of the present invention described in claim 1, by removing the side panel from each pedestal and removing both ends of the linking member from the pedestal respectively, a pair of long rod-shaped coupling members and a pair of moving wheels are provided. Since it can be divided into a base and two side panels that can be stacked flat, when transporting the carriage itself or storing it in a warehouse, etc. Compared to the conventional one where the large trolley part remains as it is, the size of the parts to be handled becomes smaller and the shape of the parts becomes simpler. It can be easily loaded or stowed, which helps reduce transportation and storage costs.

  In addition, although the cylindrical body by which the support | pillar for attachment of a side panel is detachably inserted can be fixed to the mount frame side, or it can also be attached detachably with respect to a mount frame, The structure of Claim 2 According to this, the number of detachable parts with respect to the gantry is reduced, and the work at the time of disassembly and assembly can be performed efficiently. Further, since the cylindrical body does not remain in the protruding state after the connecting member is removed, it is easy to stack the mounts and the space occupied when stacking can be reduced.

  Moreover, according to the structure of Claim 3, the attachment position of the connection member with respect to a mount frame is decided, and not only the bolting work becomes easy, but the horizontal external force acted between the mount frame and the connection member. Sometimes, it is not necessary to apply the external force to the bolts and bolt holes that connect the gantry and the connecting member, and it becomes easy to improve durability and reduce costs.

  In the case where the cylindrical body into which the side panel mounting columns are removably inserted at both ends of the connecting member is fixed and integrated, particularly according to the configuration of claim 4, the mounting position of the cylindrical body with respect to the gantry is determined. In addition to facilitating the bolting operation of the cylindrical body, when a horizontal external force acts between the gantry and the cylindrical body, the bolt that couples the external force to the gantry and the cylindrical body It is not necessary to act on the bolt holes, and it is easy to improve durability and reduce costs. In addition, when adopting the configuration according to claim 4, the cylindrical member can be regarded as a part of the connecting member, and the connecting member can be attached to the mount only by bolting the cylindrical member. The connecting member itself can also be bolted to the mount.

  The whole frame may be made of metal, but according to the configuration of claim 5, the frame is made by the presence of the synthetic resin exterior body as compared with the case where the whole is made of metal. Not only is the overall weight reduction possible, there is no need to paint the surface of the gantry, and there is no rusting on the surface of the gantry, but the moving wheels and connecting members are attached to the metal body, so synthetic resin Even if the thickness of the outer casing is reduced to further reduce the weight and cost, it is possible to ensure the necessary strength for the entire carriage. In this case, according to the structure of Claim 6 or 7, the attachment seat of a connection member and the lower end horizontal plate part of a cylindrical body can be directly abutted on the surface of a metal main body, and can be bolted directly. Therefore, the attachment strength of the connecting member and the cylindrical body can be increased as compared with the configuration in which the synthetic resin exterior body is interposed between the both bolted parts. Moreover, it is only necessary to insert a bolt upward from the lower side of the metal main body and screw it into the screw hole on the connecting member or the cylindrical body side, so that the installation work is compared to the case where a nut must be used together. Is easy and efficient.

  This type of transport cart can be configured such that the cart shape of the planar shape H can be nested in the horizontal direction in a state where the loading platform is removed or held upright along one side panel. Is. In this case, a step is provided between the upper side surface of the gantry and the lower side surface of the connecting member so that the upper side surface of the gantry of one transport cart and the lower side surface of the connecting member of the other transport cart are not in sliding contact with each other during nesting. Must be configured. When this configuration is applied to the transport carriage of the present invention, according to the configuration of claim 8, the metal main body can be obtained without sandwiching the synthetic resin exterior body between the metal main body and the mounting seat of the connecting member. It is possible to prevent the synthetic resin exterior body from being lifted with respect to (the connecting member bolted thereto) on the lower surface of the connecting member. Therefore, even if the mounting of the synthetic resin outer casing to the metal main body is simplified and the cost is reduced, the synthetic resin outer casing is lifted when the synthetic resin outer casing collides with the wall surface of the building. The fear of moving to is resolved.

  As described above, when the conveyance carriage of the present invention is configured to be nestable like the conventional conveyance carriage of this type, the carriage is configured in a two-layer structure of a metal body and a synthetic resin exterior, or the carriage When the whole is made of synthetic resin, by adopting the configuration according to claim 9 and claim 15, the cylindrical body of one transport carriage and the connecting member of the other transport carriage are directly connected during nesting. The presence of a synthetic resin vertical wall covering the side surfaces of the cylindrical bodies can be prevented from colliding and generating abnormal noise or damage to the cylindrical bodies. In addition, it is possible to reduce the assembly cost as compared with the case where the synthetic resin vertical wall portion serving as the buffer member is formed from a separate member and must be attached to the upper surface of the gantry or the side surface of the cylindrical body. it can. In addition, by adopting the configuration according to claim 11 and claim 16, the protrusion for regulating the nesting direction can be integrally formed with the gantry, and the assembly is compared with the configuration in which another part is attached to the gantry surface. This can lead to cost reduction.

  Further, when the configuration described in claim 9 is adopted, according to the configuration described in claim 10, the side panel is attached to the cylindrical body so as not to interfere with the load loaded on the loading platform or when the load is unloaded. Even if the bolt nut for fixing the support post is oriented in the lateral direction, the end of the bolt nut (the bolt head or the nut or the bolt shaft end protruding from the nut) protrudes from the synthetic resin vertical wall. Inconveniences such as collision with the other transport cart during nesting can also be avoided.

  It is possible to expect the overall weight of the pedestal to be made of synthetic resin, and to reduce the overall weight and to benefit from the fact that the surface is not a metal but a synthetic resin. In this case, according to the configuration of claim 12 Incorporation of a reinforcing plate can compensate for the lack of strength of the entire base. Moreover, after the reinforcing plate is inserted into the reinforcing plate insertion groove from the lower side at the time of assembling, only the mounting of the moving wheel and the bolting operation of the reinforcing plate are performed. The reinforcing plate can be securely fixed at a predetermined position in the gantry. In particular, according to the configuration of claim 13, a bolt for fixing the cylindrical body inserted in the sub-recess on the gantry side to the gantry can also be used as a fixing bolt for the reinforcing plate, Assembly man-hours can be reduced. Furthermore, according to the configuration of the fourteenth aspect, the reinforcing plate itself is used as a plate nut for a bolt for fixing the cylindrical body to the gantry, so that the number of parts can be further reduced. .

It is a front view of the whole conveyance trolley. It is a top view of the whole conveyance trolley. Fig. A is a left side view of the entire transport cart, and Fig. B is a right side view of the entire transport cart. It is a top view of the state which folded the loading platform. It is a top view which shows the nesting state of a conveyance trolley in the state which abbreviate | omitted the folded carrier and the side panel. FIG. 6 is an enlarged cross-sectional view showing details of a part A in FIG. 5. It is a cross-sectional top view which shows the nesting state in the wrong direction in the state which abbreviated the folding carrier and the side panel. It is a right view of a conveyance trolley principal part. FIG. 9 is an enlarged longitudinal sectional side view showing a further essential part of FIG. 8. It is a vertical right side view of the conveyance trolley essential part. It is a partially longitudinal front view which shows a loading platform support part. It is a partial cross section top view of a mount. It is a partial vertical side view of a mount. It is a cross-sectional plan view which shows the metal main body of a mount. It is a partial longitudinal front view which shows the principal part of a conveyance trolley. It is a partially longitudinal front view which shows a connection member with a cylindrical body, and a gantry on one side. It is a longitudinal front view in the wheel attachment position for the movement of a mount frame. It is a vertical front view of the principal part which shows a 2nd Example. It is a top view of the principal part which shows the 2nd Example. It is a cross-sectional plan view which shows the metal main body of a mount. FIG. 20 is a partially cross-sectional bottom view of FIG. 19. It is a top view which shows the mount frame of the 2nd Example. It is a vertical front view in the wheel attachment position for a movement of the 2nd Example. It is a partial cross-sectional plan view of the mount frame of the second embodiment. It is a vertical front view which shows the mount frame and reinforcement board of the 2nd Example. A figure is a longitudinal front view of the head of the connecting member with a cylindrical body of the second embodiment, and B figure is a longitudinal side view of the same.

  First, based on FIGS. 1 to 7, the overall structure of the transport carriage will be described. 1A and 1B are pedestals, each having a moving wheel 2 on the lower side and integrally connected by a connecting member 3. . Reference numerals 4A and 4B are side panels erected on the mounts 1A and 1B. At the center position of the lower side, a mounting column 5 with the lower half projecting downward is attached. These side panels 4A and 4B Cylindrical bodies 6 </ b> A and 6 </ b> B into which the mounting posts 5 are inserted and bolted are provided at both ends of the connecting member 3. Reference numeral 7 denotes a loading platform, which is supported on the gantry 1A, 1B in a state of being covered on the connecting member 3 between the side panels 4A, 4B, and the side of the gantry 1A side is connected to the cylindrical body 6A on the gantry 1A side. It is pivotally supported by the horizontal support shaft 8 so that it can be vertically raised and lowered, and can be folded into a folding posture that stands up along the inside of the side panel 4A. Reference numeral 9 denotes a locking tool for locking the folded cargo bed 7, which is attached to the predetermined height of the side panel 4 </ b> A so as to be swingable up and down, and at the center of the side opposite to the shaft support side of the cargo bed 7. The formed locked portion 7a is detachable. Although not shown in the drawings, an intermediate shelf can be detachably mounted horizontally between the side panels 4A and 4B as is well known in this type of carriage.

  When used as a transport cart, as shown in FIGS. 1 to 3, the transport platform 7 is horizontally deployed and supported on the gantry 1A, 1B, and the object to be transported is loaded on the platform 7 and moved. The wheel 2 can be manually pushed on the floor surface. As shown in FIG. 4, the unused transport cart has a folding posture in which the loading platform 7 stands up along the inner side of the side panel 4 </ b> A, and the locking tool 9 is attached to the locked portion 7 a of the loading platform 7 in the folding posture. As shown in FIG. 5, the trolley part in which the bases 1A, 1B project in a T shape from both ends of the rod-shaped connecting member 3 and the planar shape is H-shaped can be nested.

  In the above nesting, as shown in FIG. 5, the gantry 1A of the second transport trolley is adjacent to the outside of the gantry 1A of the first transport trolley, and the connecting members 3 of the respective transport trolleys are adjacent to each other. Then, nesting (right shifting nesting) is performed while sequentially shifting the plurality of transport carts to the right side, or conversely, the base 1B of the second transport cart outside the base 1B of the first transport cart. And the linking members 3 of the respective transport carts are adjacent to each other, and nesting (left-shifted nesting) is performed while sequentially shifting the plurality of transport carts to the left side. The carriages 1A and 1B arranged in a staircase are connected to each other in a group of carriages nested in the limit of the number of carriages 1A or 1B of other carriages that can enter between the carriages 1A and 1B. If an attempt is made adjacent to each other butt, it must be unified in one of the right shift nesting and left shift nesting. In this embodiment, in order to unify the right shifting nesting shown in FIG. 5, when trying to perform the left shifting nesting as shown in FIG. 7, it collides with the connecting member 3 of the preceding transport carriage, and the connecting members 3 Nesting direction restricting projections 10 that prevent nesting up to the adjacent normal depth are provided so as to project upward toward one end in the length direction of each gantry 1A, 1B.

  In addition, the loading platform 7 is integrally formed of synthetic resin. In a use state in which the platform 7 is horizontally laid down as shown in FIGS. 1 to 3, as shown in FIG. 10 and FIG. A concave groove portion 7b that enters the inside is formed at the center of the bottom surface along the length direction, and supported on the left and right side portions at both ends in the length direction so as to be in contact with and supported on the gantry 1A, 1B Surface 7c is formed. Of course, in order to compensate for the insufficient strength of the carrier 7 made of synthetic resin, it is possible to attach the reinforcing material by burying it.

  The detailed structure of each gantry 1A, 1B will be described with reference to FIGS. 12 to 17. Each gantry 1A, 1B is composed of a metal main body 11 and a synthetic resin exterior body 12 covering the metal main body 11. It is configured. The metal main body 11 is fitted to the lower open groove 13 having a length slightly shorter than the total length of the gantry 1A, 1B, and to the lower side of both ends in the length direction of the groove 13 and welded to each other. It is comprised from the wheel attachment members 14 and 15 which consisted of the groove | channel shape material of the upper open side which adhered.

  These two wheel mounting members 14 and 15 are arranged such that their rising side plate portions 14a and 14b and 15a and 15b are orthogonal to the falling side plate 13a and 13b of the groove member 13 and each wheel mounting member 14. , 15 are arranged so that the side plate portions 14a, 15b on one side close the open end of the channel member 13. The bottom plate portions 14c and 15c of the wheel mounting members 14 and 15 that are substantially flush with the falling side plates 13a and 13b of the groove member 13 are provided with nuts 16 and 17 fixed to the upper surfaces near the four corners. Utilizing this, screw holes that penetrate the bottom plate portions 14c and 15c are formed. Furthermore, the gate-shaped cross section at the center in the length direction of the metal main body 11, that is, the top plate portion 13 c between the two wheel mounting members 14, 15 of the groove member 13 is parallel to the width direction of the groove member 13. Two mounting holes 18 and 19 are provided, and a plurality of (four in the illustrated example) mountings are provided on the side plate portion 13a on one side of the channel member 13 at appropriate intervals in the length direction of the channel member 13. A hole 20 is provided.

  The synthetic resin exterior body 12 has an upper side wall portion 12a that covers the upper side of the metal main body 11, and a peripheral side wall portion 12b that covers four peripheral side surfaces of the metal main body 11. A large number of protrusions 12c for positioning the metal main body 11 are provided on the inner side of the side wall 12b, and when the material saving of the synthetic resin outer body 12 and other objects collide with the synthetic resin outer body 12 The buffering effect is obtained. Thus, the metal main body 11 is fitted into the lower open recess surrounded by the protruding portion 12c of the synthetic resin exterior body 12, and the side plate portion 13a on one side of the groove member 13 and the side plate portion 13a are fitted. Adjacent peripheral side wall portions 12b are joined by blind rivets 21 penetrating through the respective mounting holes 20 provided in the side plate portion 13a, so that the metal main body 11 and the synthetic resin exterior body 12 are integrated. .

  Further, on the upper side wall portion 12a of the synthetic resin exterior body 12, at the center position in the length direction of the synthetic resin exterior body 12, a first protrusion 22 for connecting member support, a main recess 23 for attaching a connection member, The second protrusion 24 for supporting the connecting member and the sub-recess 25 for attaching the cylindrical body are provided in parallel in this order in the width direction of the synthetic resin exterior body 12. The connecting member mounting main recess 23 and the cylindrical body mounting sub-recess 25 are formed by a rectangular hole provided in the upper side wall portion 12a of the synthetic resin exterior body 12, and a groove of the metal main body 11 positioned below the rectangular hole. The mounting holes 18 and 19 formed by the top plate portion 13c of the profile member 13 and provided in the top plate portion 13c of the groove profile member 13 (the gate-shaped cross section of the metal main body 11) are connected members in plan view. It is configured to be positioned at the center of the mounting main recess 23 and the cylindrical body mounting sub-recess 25. Further, the upper side wall portion 12a of the synthetic resin exterior body 12 is provided with a connecting member supporting second member within the periphery of a rectangular hole provided in the upper side wall portion 12a in order to form the cylindrical body attaching sub-recess 25. A vertical side wall portion 26 having a U-shaped cross-sectional shape is integrally provided so as to project upward from three sides excluding the side adjacent to the two protruding portions 24. Of the vertical side walls 26, two side walls 26 a and 26 b that are parallel to each other in the length direction of the gantry 1 </ b> A and 1 </ b> B are integrally provided with two vertical protrusions 27 in the width direction on the outside thereof. Mounting holes 29 penetrating in the horizontal direction are concentrically provided in the recesses 28 between the protrusions 27.

  The nesting direction regulating projection 10 is projected from the upper side wall 12a of the synthetic resin exterior body 12 of each of the mounts 1A and 1B by integral molding. Further, the first protruding portion 22 for supporting the connecting member is a side wall on the opposite side to the side where the metal main body 11 (groove 13) is riveted in the peripheral side wall portion 12b of the synthetic resin exterior body 12. It is formed flush with the portion in plan view. Of the peripheral side wall portion 12b of the synthetic resin exterior body 12, the head portion of the blind rivet 21 is fitted into the side wall portion on the side where the metal main body 11 (groove shape member 13) is riveted. A recessed portion 30 that is sufficiently deep compared to the thickness of the head is provided to prevent the head of the blind rivet 21 from protruding outward.

  The moving wheel 2 is of a caster type comprising a fork member 33 that pivotally supports a wheel main body 32 on a lower side of a substantially square mounting seat 31, and is rotatably supported around a vertical axis. A mounting seat 31 is screwed onto the nuts 16 and 17 mounted on the bottom plate portions 14c and 15c of the wheel mounting members 14 and 15 to the both wheel mounting members 14 and 15 of the metal main body 11 of the mounts 1A and 1B. Each of the four bolts 34 is attached detachably.

  The cylindrical bodies 6A and 6B at both ends of the connecting member 3 are provided with a horizontal plate portion 35 with a screw hole fixed so as to close the lower ends thereof, and the cylindrical bodies 6A and 6B are cylindrical on the gantry 1A and 1B side. When it is inserted into the body mounting sub-recess 25 and the horizontal plate portion 35 with the screw hole at the lower end is brought into contact with the top plate portion 13c (gate-shaped cross section) of the groove member 13 of the metal main body 11, The mounting hole 19 on the top plate portion 13c side and the vertical through screw hole 36 provided at the center of the horizontal plate portion 35 with screw holes are concentrically overlapped, and this cylindrical body The vertical side wall portion 26 disposed on the upper side of the mounting sub-recess 25 is adjacent to the three side surfaces of the cylindrical bodies 6A and 6B, and the cylindrical bodies 6A and 6B are provided on the vertical side wall portion 26. A mounting hole 37 penetrating in the horizontal direction is provided so as to overlap the mounting hole 29 concentrically. It is. Accordingly, the cylindrical bodies 6A and 6B are connected to the cylindrical bodies 6A through the mounting holes 19 from the lower side of the gantry 1A and 1B (the lower side of the top plate portion 13c (portion-shaped cross section) of the groove member 13). , 6B-side through screw hole 36 is screwed and fastened so that it can be attached to and detached from a fixed position regulated by the cylindrical body mounting sub-recess 25 and the vertical side wall portion 26 on the gantry 1A, 1B side. Can be attached to.

  On the other hand, as described above, the lower end portions of the cylindrical bodies 6A and 6B at both ends of the connecting member 3 are fitted into the sub-recesses 25 for mounting the cylindrical bodies on the gantry 1A and 1B side, and the horizontal plate portion 35 with screw holes is formed. When the metal body 11 is brought into contact with the top plate portion 13c (portion-shaped cross section) of the channel member 13, the lower side surfaces of both ends of the connecting member 3 are the first protrusions for supporting the connecting member on the gantry 1A, 1B side. At this time, it is attached to the lower side of both ends of the connecting member 3 so that it can be fitted into the connecting member attaching main recess 23 on the gantry 1A, 1B side. A seat 39 is fixedly projected. The mounting seat 39 is made of a groove-shaped member, and at the lower end thereof, a horizontal plate with a screw hole that abuts on the top plate portion 13c (gate-shaped cross section) of the groove-shaped member 13 of the metal main body 11. Part 40 is provided. A through screw hole 41 in the vertical direction of the horizontal plate portion 40 with the screw hole overlaps with a mounting hole 18 on the metal main body 11 (groove 13) side located at the center of the connecting member mounting main recess 23. It is provided as follows. Therefore, both ends of the connecting member 3 are connected to the connecting member 3 (from the lower side of the gantry 1A, 1B (below the top plate portion 13c (portion-shaped cross section) of the groove member 13) via the attachment hole 18 ( The bolt 42 is screwed and fastened to the through screw hole 41 on the mounting seat 39) side, so that it can be horizontally and detachably mounted at a fixed position regulated by the connecting member mounting main recess 23 on the gantry 1A, 1B side. it can. In this embodiment, since the cylindrical bodies 6A and 6B are fixed to both ends of the connecting member 3, the lower ends of the cylindrical bodies 6A and 6B are respectively attached to the bases 1A and 1B (metals). The bolts 38 to be fixed to the main body 11) and the bolts 42 to fix the mounting seat 40 of the connecting member 3 to the bases 1A and 1B (metal main body 11) are detachably attached to the bases 1A and 1B.

  As described above in detail, the moving wheel 2 is detachably attached to the wheel mounting members 14 and 15 of the metal main body 11 housed in the mounts 1A and 1B by bolts 34 below the both ends of the mounts 1A and 1B. Next, the two racks 1A and 1B are placed with the side of the side where the head of the blind rivet 21 that connects the synthetic resin outer body 12 and the metal main body 11 (grooved member 13) is located outside. In other words, the directions are changed by 180 degrees so that the first protrusion 22 for supporting the connecting member is located inside and the sub-recess 25 for attaching the cylindrical body (vertical side wall 26) is located outside. Parallel in state. In this state, the cylindrical body 6A fixed to one end of the connecting member 3 is fitted into the vertical side wall portion 26 and the cylindrical body mounting sub-recess 25 of the gantry 1A, and is positioned inside the cylindrical body 6A. The mounting seat 40 is fitted into the connecting member mounting main recess 23 of the gantry 1A, and is detachably attached to the gantry 1A side by bolts 38 and 42, respectively. Similarly, the tubular body 6B fixed to the other end of the connecting member 3 is fitted into the vertical side wall portion 26 and the tubular body mounting sub-recess 25 of the gantry 1B, and is located inside the tubular body 6B. The mounting seat 40 is fitted into the connecting member mounting main recess 23 of the gantry 1B, and is detachably attached to the gantry 1B side by bolts 38 and 42, respectively.

  A pair of side panels 4A and 4B are attached to each of the gantry 1A and 1B with respect to the trolley part having a planar shape assembled by the above operation. That is, the support columns 5 for the side panels 4A and 4B are inserted into the cylindrical bodies 6A and 6B at both ends of the connecting member 3 mounted on the mounts 1A and 1B. At this time, the width direction of the side panels 4A and 4B is regulated in parallel with the length direction of the gantry 1A and 1B by the cross-sectional shape of the mounting column 5 and the cross-sectional shape of the cylindrical bodies 6A and 6B. . The insertion depth of the mounting column 5 with respect to the cylindrical bodies 6A and 6B becomes constant when the lower sides of the side panels 4A and 4B are in contact with and supported by the upper ends of the cylindrical bodies 6A and 6B. At this time, the mounting hole that horizontally penetrates the lower end portion of the mounting column 5 so as to concentrically overlap the mounting hole 29 on the vertical side wall portion 26 side and the mounting hole 37 on the cylindrical body 6A, 6B side. 45 is provided. Accordingly, the bolt 46 is inserted from one side through the mounting hole 29 of the vertical side wall portion 26, the mounting hole 37 of the cylindrical bodies 6A and 6B, and the mounting hole 45 of the mounting column 5, and the nut 47 is inserted into the bolt 46 protruding to the opposite side. As a result, the side panels 4A and 4B can be detachably installed on the gantry 1A and 1B via the cylindrical bodies 6A and 6B fixed to both ends of the connecting member 3, respectively. When the mounting columns 5 for the side panels 4A and 4B are inserted into the cylindrical bodies 6A and 6B on the side of the mounts 1A and 1B and fixed with the bolt nuts 46 and 47 as described above, the cylindrical bodies 6A and 6B are attached. A supporting shaft insertion hole 43 b concentrically overlapping with a supporting shaft insertion hole 43 a provided in the vicinity of the upper end is provided in the mounting column 5.

  Bolt nuts 46 and 47 for attaching the side panels 4A and 4B to the cylindrical bodies 6A and 6B are vertical side walls together with bolts 38 for fixing the lower ends of the cylindrical bodies 6A and 6B to the mounts 1A and 1B (metal body 11). 26 also serves to attach the cylindrical bodies 6A, 6B to the gantry 1A, 1B (synthetic resin exterior body 12) via the H.26. Thus, the bolt nuts 46 and 47 pass through the recesses 28 between the protrusions 27 in the side wall portions 26a and 26b of the vertical side wall portion 26, so that the bolt head portion 46a, the nut 47 and the nut The height of the protrusion 27 can be increased so that the bolt shaft end 46b protruding from 47 does not protrude from the inside of the recess 28. In this embodiment, as shown in FIGS. The depth of 28 is set to such an extent that the bolt head 46a just fits.

  Therefore, as shown in FIG. 5, when this transport carriage is nested in a normal direction that is not blocked by the nesting direction restricting projection 10, the side wall 26a with which the connecting member 3 of the adjacent transport carriage comes into contact, that is, the nesting, The side panels 4A and 4B are tubular bodies using bolt nuts 46 and 47 in a direction in which the bolt heads 46a are fitted in the recesses 28 of the side wall 26a opposite to the side on which the direction regulating projections 10 are provided. By attaching to 6A and 6B, even if the bolt shaft end 46b protrudes from the inside of the recess 28 of the opposite side wall portion 26, there is a risk that the connecting member 3 of the transport carriage will come into contact with the bolt shaft end 46b and be damaged during nesting. It can be lost. In other words, at the time of nesting, the protrusion 27 of the side wall portion 26a in the vertical side wall portion 26 on the gantry 1A of one transport carriage is brought into contact with the connecting member 3 of the other transport carriage and the gantry of the other transport carriage The protrusion 27 of the side wall part 26a in the vertical side wall part 26 on 1B can be brought into contact with the connecting member 3 of one of the transport carriages, so that the impact caused by the collision in the nesting direction between the adjacent transport carriages can be reduced. . Of course, in order not to consider the direction of the bolt nuts 46, 47, the protrusions 27 of the side wall portions 26a, 26b in the vertical side wall portion 26 are made sufficiently high so that the bolt shaft end 46b on the nut 47 side is also provided. It is also possible to configure so that it always fits in the recess 28.

  When the pair of side panels 4A and 4B are attached, the loading platform 7 is attached. As shown in FIGS. 1, 8, 9, and 11, the synthetic resin carrier 7 has a pair of bearing protruding pieces 44 at the center of one side thereof, and the cylindrical bodies 6 </ b> A and 6 </ b> B. Are formed by integral molding at intervals that can be sandwiched between them. In this embodiment, the pair of bearing projecting pieces 44 is shown in FIG. 9 with respect to the cylindrical body 6A on the gantry 1A to which the side panel 4A on the side having the anchor 9 of the loading platform 7 is attached. As shown, the support shaft insertion hole 43a on the cylindrical body 6A side, the support shaft of the support column 5 for mounting the side panel 4A inserted into the cylindrical body 6A and fixed by bolt nuts 46, 47 The horizontal support shaft 8 is inserted through the insertion hole 43 b and the shaft hole 44 a of the bearing projecting piece 44, and the loading platform 7 is attached to the horizontal support shaft 8 so as to be swingable up and down. Thus, the loading platform 7 is fitted on the connecting member 3 in the recessed groove portion 7b by being horizontally inclined around the horizontal support shaft 8, and is supported on both the left and right sides at both ends in the length direction. The surface 7c is supported on the synthetic resin exterior body 12 of the two racks 1A and 1B.

  The horizontal support shaft 8 used in this embodiment is provided with a head portion 8a at one end of a metal round bar, and at the other end, retaining protrusions 8b along the axial direction at a plurality of locations in the circumferential direction. The protrusions 8b are integrally protruded and press-fitted into the shaft hole 44a of the protruding piece 44 for bearing made of synthetic resin without using a retaining member such as a split pin or a β pin. By doing so, the retaining protrusion 8b protruding from the shaft hole 44a is configured to prevent the horizontal support shaft 8 from slipping out. Of course, the supporting shaft insertion hole 43a on the cylindrical body 6A side made of metal and the supporting shaft insertion hole 43b of the mounting support column 5 made of metal are also affected by the retaining protrusion 8b. It is comprised so that the horizontal spindle 8 can be smoothly inserted without.

  When nesting transport carts that are not used, as described above, the nesting direction regulating projections 10 projecting on the two racks 1A and 1B can unify the nesting directions, and the adjacent transport carts. Synthetic resin vertical sidewalls integrally projecting from the synthetic resin exterior body 12 so as to surround the cylindrical bodies 6A and 6B with respect to the impact caused by the collision between the connecting member 3 and the cylindrical bodies 6A and 6B between the carriages The portion 26, which can also be effectively relaxed by the protrusion 27. Of course, when it is used as a transport carriage, the peripheral side wall portion 12b of the synthetic resin exterior body 12 forming the peripheral surface of the gantry 1A, 1B, and the protrusion that also forms a space between the metal main body 11 and the peripheral side wall portion 12b. Due to the presence of the strip portion 12c, a reliable bumper effect at the time of collision with another object can be obtained, and there is no need to attach a bumper as a separate part.

  Furthermore, since the lower side level of the connecting member 3 is made higher than the upper side level of the respective bases 1A and 1B, the base 1A of the other transport carriage is placed below the connection member 3 of one transport base during nesting. There is no risk of receiving frictional resistance when entering 1B, and nesting can be performed easily and smoothly. However, if there is a gap between the upper surface of the gantry 1A, 1B and the lower surface of the connecting member 3, the gantry The synthetic resin outer body 12 of 1A, 1B is not structured to be sandwiched between the metal main body 11 and the connecting member 3, and the metal main body 11 and the synthetic resin outer body 12 are connected to each other of the mounts 1A, 1B. It is not connected by the blind rivet 21 or the like on both the inner surface side and the outer surface side facing each other, but is connected by the blind rivet 21 only on the outer surface side. When the side surface collides with another object, pedestal 1A, there is a risk of tilting as synthetic resin sheathing body 12 floats relative to the metallic body 11 at the inner surface side of 1B. However, according to the above-described embodiment, the first protrusion 22 and the second protrusion 24 for supporting the connecting member, which are in contact with the lower surface of the connecting member 3, are integrally formed on the synthetic resin exterior body 12. There is no inconvenience.

  For example, when transporting a large number of transport carts in the distribution process until sale or when storing them in a warehouse, the horizontal support shaft 8 is pulled out and the loading platform 7 is removed, and the pair of side panels 4A and 4B are Then, the bolt nuts 46 and 47 are removed and pulled out from the cylindrical bodies 6A and 6B on the gantry 1A and 1B side, the bolts 38 and 42 are removed from both the gantry 1A and 1B, and the connecting member 3 together with the cylindrical bodies 6A and 6B at both ends. Are removed from the two racks 1A and 1B, so that two moving wheels 2 (which can also be removed from the racks 1A and 1B by removing bolts 34 if necessary) are provided below both ends in the length direction. The gantry 1A, 1B, the connecting member 3 provided with the cylindrical bodies 6A, 6B at both ends, and the two side panels 4A, 4B and the loading platform 7 that can be overlapped with each other can be divided into two gantry 1A, 1 And the connecting member 3 in a limited loading space or storage space as compared with the case where the two racks 1A and 1B have to be handled as a flat H-shaped carriage unit in which the connecting members 3 are integrated. It becomes easy to efficiently pack the transport cart.

  Next, a second embodiment of the present invention will be described based on FIGS. 18 to 25 showing only the gantry 1A side on one side. In this second embodiment, the gantry 1A, 1B is composed of a synthetic resin main body 50 and a reinforcing plate 51, and a cylindrical member 6A, 6B is fixed to both ends of the connecting member 3 below both ends. A mounting seat 52 made of a groove material that is open on the upper side is fixed within a certain range in the length direction so as to be connected to the shaped bodies 6A and 6B, and the horizontal plate portion 53 of the horizontal plate portion 53 is fixed to the lower horizontal plate portion 53 of the mounting seat 52. Through nuts 54a and 54b fixed to the upper surface, vertical threading holes are provided at two locations in the length direction. Also, the cylindrical bodies 6A and 6B are provided with support shaft insertion holes 43a for supporting the loading platform 7 horizontally in the vicinity of the upper end, and mounting holes 55 for the mounts 1A and 1B are horizontally positioned in the vicinity of the lower end. It is provided vertically.

  The synthetic resin main body 50 of the gantry 1A, 1B has a concave groove-shaped connecting member mounting main recess 56 into which the entire lower half of the mounting seat 52 of the connecting member 3 is fitted, and a vertical through-hole-shaped hole. A cylindrical body attaching sub-recess 57 is provided. The connecting member mounting main recess 56 is formed so that one end thereof communicates with the cylindrical body mounting sub-recess 57 and the other end is opened to the inner side of the mount 1A, 1B (synthetic resin main body 50). Has been. Further, the synthetic resin main body 50 has two vertical directions that match the nuts (through screw holes) 54a and 54b in the mounting seat 52 of the connecting member 3 whose lower half is fitted in the connecting member mounting main recess 56. Mounting holes 58a and 58b penetrating into the cylindrical body, mounting holes 59 penetrating in the horizontal and vertical directions matching the mounting holes 55 of the cylindrical bodies 6A and 6B inserted into the cylindrical body mounting sub-recesses 57, and the moving wheel 2 A mounting hole 60 penetrating in the vertical direction for bolting the mounting seat 31 is provided.

  The synthetic resin main body 50 of the gantry 1A, 1B is connected to a nesting direction regulating projection 10 and a vertical side wall portion 26 having a U-shaped planar shape covering the side surfaces of the cylindrical bodies 6A, 6B. An upper side wall portion 50a in which a member mounting main concave portion 56 is formed, a peripheral side wall portion 50b, a rectangular tubular wall portion 50c in which a cylindrical body mounting sub-recess portion 57 is formed, and mounting holes 58a and 58b penetrating vertically. , 60 to form a cylindrical wall portion 50d integrally projecting downward from the upper side wall portion 50a, and a plate-like wall portion that connects the cylindrical wall portions 50 to each other and is also integrated with the peripheral side wall portion 50b. 50e and 50f. A mounting hole 59 penetrating in the horizontal and vertical direction for fixing the cylindrical bodies 6A and 6B is provided in the rectangular cylindrical wall portion 50c, and the mounting holes 58a and 58b for fixing the mounting seat 52 of the connecting member 3 are provided. The periphery of the lower end opening is formed one step lower so that the bolt head does not protrude below the mounts 1A and 1B, and the mounting of the moving wheel 2 around the lower end opening of the mounting hole 60 for mounting the moving wheel 2 is further performed. The lower surface with which the seat 31 abuts is also formed one step lower.

  The reinforcing plate 51 is a belt-like metal plate whose plate surface is vertically oriented and whose length direction is parallel to the length direction of the gantry 1A, 1B, and the length thereof is the entire length in the length direction of the gantry 1A, 1B. It is a little shorter, and is inserted upward into the reinforcing plate insertion groove 61 formed in the synthetic resin main body 50 from below the mounts 1A and 1B. The reinforcing plate insertion groove 61 has a plate-like wall of the synthetic resin main body 50 at a position where the reinforcing plate 51 inserted into the reinforcing plate insertion groove 61 comes into contact with the outer surface of the inner wall portion of the square tubular wall portion 50c. It is formed by a lower open notch provided in the portion 50e, and is between the inner side surface of the mounting seat 31 of the moving wheel 2 bolted to the mounting hole 60 and the groove bottom of the reinforcing plate insertion groove portion 61. Thus, both end regions of the reinforcing plate 51 are sandwiched and positioned. Further, when the reinforcing plate 51 is inserted into the reinforcing plate insertion groove portion 61, it is concentric with a horizontal vertical mounting hole 59 provided in a rectangular tubular wall portion 50c forming a cylindrical body attaching sub-recess 57. Through screw holes 62 are provided so as to overlap each other. Reference numeral 50 f denotes plate-like wall portions that form both ends of the reinforcing plate insertion groove 61.

  In a state where the reinforcing plate 51 is inserted into the reinforcing plate insertion groove 61 of the synthetic resin main body 50 of the gantry 1A, 1B from below, the mounting seats 31 of the moving wheels 2 are placed below both ends of the synthetic resin main body 50. By attaching each mounting hole 60 with bolt nuts 63 and 64 penetrating in the vertical direction, the pedestals 1A and 1B having the reinforcing plate 51 and having the moving wheels 2 on the lower sides of both ends are assembled. In this embodiment, a nut fitting recess 60a in which the nut 64 is fitted in a non-rotating state is formed in the upper end opening of each mounting hole 60, and the nut 64 fitted in the nut fitting recess 60a. The nut 63 and the bolt 63 are configured so that the shaft ends of the nut 64 and the bolt 63 do not protrude from the upper surface of the gantry 1A, 1B (synthetic resin main body 50).

  Thereafter, the cylindrical bodies 6A and 6B at both ends of the connecting member 3 are inserted from the vertical side wall portion 26 into the sub-recess portion 57 for mounting the cylindrical body, and the lower half of the mounting seat 52 below both ends of the connecting member 3. The portion is fitted into the connecting member mounting main recess 56. The insertion depth of the cylindrical bodies 6A and 6B into the connecting member mounting main recess 56 is determined by the fitting of the mounting seat 52 to the connecting member mounting main recess 56. As a result, the cylindrical body mounting sub recess 57 is formed. Since the mounting hole 59 of the formed rectangular tubular wall portion 50c, the mounting holes 55 of the cylindrical bodies 6A and 6B to the mounts 1A and 1B, and the through screw holes 62 of the reinforcing plate 51 overlap concentrically, the mount 1A , 1B, the bolt 65 is inserted into the mounting holes 55, 59 and screwed into the through screw hole 62 of the reinforcing plate 51, whereby the reinforcing plate 51 is used as a plate nut for the bolt 65 to form the cylindrical body 6A. , 6B can be fixed to the gantry 1A, 1B (the synthetic resin main body 50 and the reinforcing plate 51). The heads of bolts 65 for fixing the cylindrical bodies 6A and 6B are fitted to the outer side surfaces of the mounts 1A and 1B, that is, the peripheral side wall portions 50b that form the outer surface of the synthetic resin main body 50. A vertical groove 50g is formed.

  On the other hand, by fitting the mounting seats 52 on both lower sides of the connecting member 3 into the connecting member mounting main recess 56, nuts (through screw holes) 54a and 54b on the mounting seat 52 side and the bases 1A and 1B (composite) Since the two mounting holes 58a and 58b on the resin main body 50) side are concentrically overlapped, the bolts 66a and 66b inserted from below the mounting holes 58a and 58b are nuts (through screw holes) on the mounting seat 52 side. By screwing and fastening to 54a and 54b, the mounting seats 52 at the lower ends of both ends of the connecting member 3 can be fixed in the connecting member mounting main recesses 56 of the mounts 1A and 1B (the synthetic resin main body 50). In the mounted state of the connecting member 3, the height of the mounting seat 52 is set so that the lower surface level of the connecting member 3 is higher than the upper surface level of the mounts 1A and 1B by a predetermined height.

  In this embodiment, the mounting holes 37 for fixing the side panel shown in the previous embodiment are not provided in the cylindrical bodies 6A and 6B. Therefore, the column 5 for mounting the side panels 4A and 4B has a cylindrical shape when it is inserted into the cylindrical bodies 6A and 6B to such a depth that the lower sides of the side panels 4A and 4B are supported by the upper ends of the cylindrical bodies 6A and 6B. Only the support shaft insertion hole 43b concentrically overlapping the support shaft insertion hole 43a on the side of the rods 6A and 6B is provided, and the side panel 4A on the side of supporting the loading platform 7 has the support shaft insertion holes 43a and 43b and the loading platform 7. By inserting the support shaft 8 through the shaft hole 44a of the bearing protrusion piece 44 on the side and supporting the loading platform 7, it can be attached to the cylindrical body 6A via the support shaft 8 in a retaining state. The other side panel 4B can be attached to the cylindrical body 6B by inserting a dedicated coupling pin or bolt and nut instead of the support shaft 8 into the support shaft insertion holes 43a and 43b.

  Of course, the length of the mounting column 5 of the side panel 4B on the side where the support shaft 8 does not penetrate the mounting column 5 is lengthened, and the bolt 65 connecting the cylindrical body 6B and the gantry 1B is attached to the mounting column 5. It is also possible to configure the mounting column 5 to be attached to the cylindrical body 6B with the bolt 65. Of course, the mounting structure on the side panel 4B side can also be employed on the side panel 4A side. In any case, as in the previous embodiment, the bolt nuts 46 and 47 for fixing the support columns 5 for attaching the side panels 4A and 4B to the cylindrical bodies 6A and 6B are not necessary, and the cylindrical body 6A. , 6B, both side wall portions 26a, 26b of the vertical side wall portion 26 function only as a cushioning member during nesting. Therefore, even when the protrusions 27 are provided on both side wall portions 26a, 26b, the protrusions In consideration of only the buffering effect 27, an arbitrary number (three in the illustrated example) of an arbitrary height can be arranged at an arbitrary interval.

  The transport cart according to the present invention can be utilized as a nestable distribution cart used in the field of merchandise distribution.

DESCRIPTION OF SYMBOLS 1A, 1B Mounting frame 2 Wheel for movement 3 Connecting member 4A, 4B Side panel 5 Mounting column 6A, 6B Cylindrical body 7 Loading platform 8 Horizontal support shaft 10 Nesting direction control protrusion 11 Metal main body 12 Synthetic resin exterior body 12a , 50a Upper side wall portion 12b, 50b Peripheral side wall portion 12c Projection portion 13 Groove shape member 14, 15 Wheel mounting member 16, 47, 54a, 54b, 64 Nut 18-20, 29, 37, 45, 55, 58a-60 Mounting hole 21 Blind rivet 22 Connecting member supporting first protrusion 23, 56 Connecting member mounting main recess 24 Connecting member supporting second protrusion 25, 57 Cylindrical body mounting sub recess 26 Vertical side wall 26a, 26b Both sides Wall 27 Projection 28, 30 Recess 31 Moving wheel mounting seat 34, 38, 42, 46, 63, 65, 66a, 66b 35, 40, 53 Horizontal plate portion with screw hole 36, 41, 62 Through screw hole 39, 52 Connecting member mounting seat 43a, 43b Support shaft insertion hole 44 Bearing protruding piece 50 Synthetic resin main body 50c Square cylindrical wall portion 50d Cylindrical wall portion 50e, 50f Plate-like wall portion 50g Concave groove portion 51 Reinforcement plate 52 Mounting seat 61 Reinforcement plate insertion groove portion

Claims (16)

  Each gantry includes a pair of gantry with moving wheels on the lower side, a connecting member for linking the two gantry, a side panel standing on each gantry, and a loading platform disposed between both side panels. The transport carriage is provided with a cylindrical body into which a column for attaching a side panel is inserted, wherein both ends of the connecting member and each mount are detachably coupled by bolts.   The conveyance cart according to claim 1, wherein the cylindrical body is fixed to both ends of the connecting member.   The gantry is provided with a main recess for fitting a mounting seat projecting on both lower sides of the connecting member, and a bolt for fixing the mounting seat of the connecting member fitted in the main recess is provided. The conveyance cart according to claim 1 or 2.   The cylindrical body is detachable with respect to the gantry, and the gantry is provided with a sub-recess portion into which a lower end portion of the cylindrical body is inserted, and the cylindrical body inserted into the sub-recess portion is provided. The conveyance cart according to any one of claims 1 to 3, wherein a bolt to be fixed is provided.   The gantry is composed of a metal main body to which a moving wheel is bolted, and a synthetic resin exterior body covering the metal main body, and the connecting member is bolted to the metal main body. The conveyance trolley | bogie of any one of Claims 1-4.   The mount is provided with a main recess into which a mounting seat projecting on both lower sides of the connecting member is fitted, and the metal main body includes a gate-shaped cross-section portion that is open on the lower side, At the lower end, there is provided a horizontal plate portion with a screw hole that comes into contact with the upper surface of the portal cross section of the metal main body, and a bolt that penetrates the gate cross section of the metal main body upward from below The conveyance cart according to claim 5, wherein the carriage is screwed and fastened to a screw hole of a horizontal plate portion with a screw hole of a seat.   The cylindrical body is detachable with respect to the gantry, and the gantry is provided with a sub-recess portion into which a lower end portion of the cylindrical body is inserted, and the metal main body has a gate shape with a lower opening. A horizontal plate portion with a screw hole that is in contact with the upper surface of the portal cross section of the metal main body is provided at the lower end of the cylindrical body, and the portal cross section of the metal main body is disposed on the lower side. The conveying cart according to claim 5, wherein a bolt penetrating upward from is screwed and fastened to a screw hole of a horizontal plate portion with a screw hole of the cylindrical body.   The mounting seat of the connecting member is configured such that when the mounting seat is mounted on a gantry, the lower surface of the connecting member is configured to be higher than the surface of the synthetic resin exterior body by a certain height, and the synthetic resin exterior body The conveying cart according to any one of claims 5 to 7, wherein a protruding portion that supports a lower surface of the connecting member is integrally formed.   The synthetic resin exterior body of the gantry is integrally formed with a vertical wall portion that covers at least the side surface of the cylindrical body attached to the gantry and the side surface adjacent to the connecting member at the time of nesting. The conveyance cart according to any one of claims 4 to 8, which is provided in a protruding manner.   The vertical wall portion is formed in a U-shape so as to cover three side surfaces excluding the side where the connecting member of the cylindrical body is present, and penetrates the vertical wall portion and the cylindrical body in the frame length direction. The bolts and nuts fix the support columns for the side panels inserted into the cylindrical body, and the vertical walls are formed with recesses into which both ends of the bolts and nuts are respectively fitted. The conveyance cart according to claim 9, wherein the concave portion on the side adjacent to the cylindrical body of the conveyance cart has a depth at which an end portion of the bolt and nut fitted inside thereof does not protrude outside the concave portion.   The projection part which regulates the nesting direction of this conveyance trolley is integrally formed in the said synthetic resin exterior body in the one end side of the length direction of the said base. The transport cart described.   The gantry is entirely made of synthetic resin, and is formed with a reinforcing plate insertion groove portion that is open downward along the gantry length direction. Both ends of the reinforcement plate insertion groove portion into which the reinforcement plate is inserted are The conveying cart according to any one of claims 1 to 4, wherein the carriage is closed by a mounting seat of a moving wheel bolted to the lower side of both ends, and the reinforcing plate is bolted to a mount.   The cylindrical body is detachable from the gantry, and the gantry has a sub-recess portion into which a lower end portion of the cylindrical body is inserted, and a bolt for fixing the cylindrical body fitted in the sub-recess portion. The transport carriage according to claim 12, wherein the reinforcing plate is fixed to the gantry with a bolt for fixing the cylindrical body.   The reinforcing plate insertion groove is disposed so as to be adjacent to a cylindrical wall portion inside the gantry forming the sub-recess, and the reinforcing plate is provided with a screw hole penetrating horizontally to form the sub-recess. A bolt that horizontally penetrates the cylindrical wall portion inside the gantry and the cylindrical body inserted into the sub-recess portion horizontally inward from the outside is screwed into the screw hole of the reinforcing plate. The transport cart as described in the item.   The vertical wall portion that covers at least a side surface of the cylindrical body adjacent to the connecting member at the time of nesting is integrally projected from the synthetic resin frame. The conveyance cart of any one of 12-14.   The conveyance cart according to any one of claims 12 to 15, wherein a protrusion that regulates a nesting direction of the conveyance carts is integrally formed on the synthetic resin frame.

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