Locking part structure of transport vehicle and transport vehicle

Abstract

The invention relates to a clamping part structure of a transport vehicle and the transport vehicle. The locking portion structure includes a guide rail, a base block, a guided portion, and a fixing portion. The guide rail is provided at an upper portion of the vehicle body. The base block supports a locking member capable of locking a body to be conveyed. The guided portion is guided by the guide rail and is movable together with the base block. The fixing part can fix the position of the base block relative to the guide rail.

Description

Technical Field

[0001] The invention relates to a locking part structure of a transport vehicle and the transport vehicle. Background Art

[0002] As a transport vehicle used in a factory or the like, there is known a transport vehicle that is used in connection with an object to be transported (for example, refer to Patent Document 1).

[0003] The transport vehicle described in Patent Document 1 is an unmanned transport vehicle that moves along a prescribed driving route within a factory. The transported object (transported trolley) transported by the transport vehicle has wheels that contact the road surface and a loading frame for carrying goods. A connecting device having a pair of L-shaped arms for gripping the transported object is provided on the upper portion of the transport vehicle. The connecting device is constructed in a manner that can grip the gripping object portion of the transported object by moving and rotating the pair of arms. On the transported object, a gate-shaped frame is provided on the inner side of the wheels at the four corners. The gripping object portion is provided at the top position of the gate-shaped frame.

[0004] The transport vehicle moves in a manner of diving under the door-shaped frame of the transported object. In this state, the transport vehicle operates the connection device and grasps the grasping object part with a pair of arms. As a result, the transported object is connected to the transport vehicle and is transported to the destination position following the movement of the transport vehicle.

[0005] Prior art literature

[0006] Patent Literature

[0007] Patent Document 1: Japanese Patent Application Publication No. 2010-036644 Summary of the invention

[0008] Problem that the invention aims to solve

[0009] The transport vehicle disclosed in Patent Document 1 can hold the transported object by the arm as long as the holding position and width of the transported object held by the arm of the connecting device are constant. However, it is difficult to hold the transported object when transporting various transported objects of different sizes, shapes, etc.

[0010] In addition, in the transport vehicle disclosed in Patent Document 1, it is difficult to adjust the gripping position of the arm relative to the transported object. Therefore, it is necessary to accurately locate the gripping position relative to the transported object. Therefore, in the case of the transport vehicle disclosed in Patent Document 1, it is necessary to provide a complex mechanism including various detection sensors in order to achieve reliable grip (locking) relative to the transported object.

[0011] Therefore, the present invention provides a locking portion structure of a transport vehicle and a transport vehicle that can simultaneously transport various transported objects having different specifications while simplifying the structure.

[0012] Solutions for solving problems

[0013] The locking structure of a transport vehicle according to one aspect of the present invention comprises: a guide rail, which is arranged on the upper part of the vehicle body; a base block, which supports a locking member capable of locking a transported body; a guided part, which is guided by the guide rail and can move together with the base block; and a fixing part, which can fix the position of the base block relative to the guide rail.

[0014] The locking portion structure of the above-mentioned structure releases the position fixation of the base block by the fixing portion when the position of the locking member on the vehicle body is changed. The locking portion structure moves the base block and the guided portion to the desired position along the guide track in this state. Afterwards, the base block is fixed relative to the guide track by the fixing portion. Thus, the locking position of the locking member on the transported body is adjusted to an appropriate position. Therefore, by appropriately adjusting the position of the locking member on the vehicle body in this way, various specifications of transported bodies with different sizes and shapes can be locked. Therefore, when the locking portion structure of this structure is adopted, various specifications of transported bodies with different sizes and shapes can be transported by the transport vehicle.

[0015] Alternatively, the recessed portion of the guide rail that opens in one direction extends in a direction that intersects the vertical direction. Alternatively, the guide rail is formed by a guide groove having an anti-slip flange that extends inwardly at the opening edge of the recessed portion. Alternatively, the guided portion is movably accommodated in the recessed portion. Alternatively, the fixing portion is formed by a connecting member that can fix the guided portion so that the guided portion is pressed against the anti-slip flange.

[0016] In this case, when changing the position of the locking member on the vehicle body, the pressure of the guided part on the anti-slip flange (guide groove) is released. The locking part structure moves the base block and the guided part along the guide groove to the desired position in this state. At this time, the guided part moves in the guide groove. After that, the guided part is pressed and fixed to the anti-slip flange of the guide groove by a connecting piece. In this way, the locking position of the locking member on the transported body is adjusted to an appropriate position.

[0017] In this structure, the guided portion connected to the base block is stably supported by the guide groove with the anti-drop flange. Therefore, when this structure is adopted, the locking member for locking the transported object can be stably supported on the vehicle body.

[0018] The guide groove may open vertically upward. The upper edge of the opening of the guide groove may be formed of a substantially horizontal flat surface.

[0019] In this case, the base block supporting the locking member is stably supported by a substantially horizontal flat surface of the upper edge of the opening of the guide groove. In addition, the upper edge of the opening of the guide groove on which the base block is placed is a flat surface. Therefore, when the position of the locking member is adjusted, the base block can be smoothly moved above the guide groove.

[0020] Alternatively, the guide rail may be composed of a plurality of guide grooves. Alternatively, the plurality of guide grooves may correspond to the guide grooves respectively. Alternatively, the plurality of guide grooves may be arranged on the upper portion of the vehicle body. Alternatively, the plurality of guide grooves may have a plurality of openings that open vertically upward and correspond to each other in a one-to-one manner. Alternatively, the flat surfaces of the upper side edges of the plurality of openings may be arranged at the same height.

[0021] In this case, the cargo can be stably placed on the upper edge of the plurality of guide grooves. Therefore, when this structure is adopted, the cargo can be well conveyed by utilizing the ineffective space on the guide grooves.

[0022] The guide rail may be detachably mounted on the vehicle body.

[0023] In this case, the guide rail can be replaced with another appropriate guide rail of different size and shape according to the object to be transported, the place to be transported, etc. Therefore, when this structure is adopted, objects of more diverse specifications can be transported. Moreover, the above-mentioned effect can also be obtained in various usage environments.

[0024] Alternatively, the guide rail may be provided in a plurality of blocks separated from each other.

[0025] In this case, the unnecessary space occupied by the guide rail can be suppressed according to the specifications of the transported object, and the position and direction of the guide rail on the vehicle body can be appropriately set. Therefore, when this structure is adopted, the transport vehicle can be made small and light while transporting objects of various specifications.

[0026] A transport vehicle according to one aspect of the present invention comprises: a vehicle body having drive wheels; a guide rail disposed on an upper portion of the vehicle body; a base block supporting a locking member capable of locking a transported body; a guided portion guided by the guide rail and capable of moving together with the base block; and a fixing portion capable of fixing the position of the base block relative to the guide rail.

[0027] The transport vehicle of the above structure can lock various transported objects of different sizes and shapes by properly adjusting the position of the locking member on the vehicle body. Therefore, when the transport vehicle of this structure is adopted, various transported objects of different sizes and shapes can be transported.

[0028] It is desirable that a portion of the guide rail is disposed just above the drive wheel.

[0029] In this case, the load of the guide rail, the locking member, etc. acts on the drive wheel from directly above, so that the driving force of the drive wheel can act on the road surface efficiently when the transport vehicle is traveling. Therefore, the driving stability and turning performance of the transport vehicle can be well maintained.

[0030] Effects of the Invention

[0031] The locking structure of the transport vehicle is configured such that the base block and the guided part can move along the guide track on the vehicle body, and the base block can be fixed on the guide track by the fixing part. Therefore, the position of the base block and the position of the locking member that locks the transported object can be properly adjusted together. Therefore, when the locking structure of the transport vehicle of the present invention is adopted, it is possible to simplify the structure and transport various transported objects of different specifications at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a perspective view showing the transport vehicle according to the first embodiment.

[0033] Figure 2 It is along Figure 1 Cross-sectional view along line II-II.

[0034] Figure 3 It is a perspective view showing the guided portion and the fixing portion according to the first embodiment.

[0035] Figure 4 This is a perspective view of the guided portion and the fixing portion according to the first embodiment as seen from another angle.

[0036] Figure 5 It is along Figure 1 A cross-sectional view of line VV.

[0037] Figure 6 It is a perspective view showing another usage state of the transport vehicle according to the first embodiment.

[0038] Figure 7 It is a perspective view showing a support portion of a locking member according to a second embodiment.

[0039] Figure 8 It is along Figure 7 A cross-sectional view taken along line VIII-VIII.

[0040] Fig. 9 It is a perspective view showing a transport vehicle according to a third embodiment.

[0041] Fig.10It is a perspective view showing a transport vehicle according to a fourth embodiment.

[0042] Fig.11 It is a perspective view showing a transport vehicle according to a fifth embodiment.

[0043] Fig.12 It is a perspective view showing a transport vehicle according to a sixth embodiment.

[0044] Fig.13 is a diagram showing a support portion of the seventh embodiment, and is Figure 2 , Figure 8 The corresponding cross-sectional view.

[0045] Description of Reference Numerals

[0046] 1. 201, 301, 401, 501, transport vehicle; 2. vehicle body; 3. driving wheel; 12. guide groove (guide rail); 13. 113, 613, base block; 14. transported trolley (transported body); 15. locking member; 24. anti-slip flange; 25. guided block (guided part); 30. connecting member (fixing part); 60. guide rail (guide rail); 65. guide arm (guided part); 71. fixing bolt (fixing part). DETAILED DESCRIPTION

[0047] Next, embodiments of the present invention will be described based on the drawings.

[0048] In addition, in the embodiments described below, the same reference numerals are used for common parts, and some repeated descriptions are omitted. In addition, an arrow UP pointing vertically upward, an arrow FR pointing in front of the transport vehicle, and an arrow LH pointing forward and indicating the left side are recorded in appropriate places in each figure. Hereinafter, the direction indicated by the arrow UP is referred to as "up", and the opposite side of the "up" is referred to as "down". Moreover, the direction including the direction indicated by the arrow FR is referred to as the "front-rear direction", and the direction including the direction indicated by the arrow LH is referred to as the "left-right direction".

[0049] <First embodiment>

[0050] Figure 1 It is a perspective view showing the transport vehicle 1 according to the present embodiment.

[0051] The transport vehicle 1 of this embodiment is an unmanned transport vehicle that moves autonomously in a factory or field under the control of a control device. The transport vehicle 1 may also be provided with a control device for controlling the transport vehicle 1. The transport vehicle 1 may also be controlled by a control device provided outside the transport vehicle 1. The transport vehicle 1 has a vehicle body 2 and a plurality of drive wheels 3. The vehicle body 2 has a substantially rectangular parallelepiped shape. The plurality of drive wheels 3 are provided below the four corners of the vehicle body 2. The plurality of drive wheels 3 use Mecanum wheels.

[0052] The plurality of driving wheels 3 are respectively provided with a plurality of drum-shaped tubes 4 and a drum-shaped tube holder 5. The plurality of drum-shaped tubes 4 are barrel-shaped rolling bodies. The drum-shaped tube holder 5 rotatably supports the plurality of drum-shaped tubes 4 on the outer periphery. In each of the plurality of driving wheels 3, the drum-shaped tube holder 5 is driven by a driving unit (not shown) having a motor and a reducer. The plurality of drum-shaped tubes 4 are rotatably held on the outer periphery of the drum-shaped tube holder 5 in a state in which the holder rotation axis of the drum-shaped tube holder 5 is tilted.

[0053] The control device controls the rotation direction and torque of each of the multiple driving wheels 3 (drum-shaped tube holder 5) separately.Thus, the transport vehicle 1 can move freely in various directions.In addition, for the driving wheels 3 of the left and right sides of the transport vehicle 1 configured in the multiple driving wheels 3, the tilting direction of the drum-shaped tube 4 on the periphery of the drum-shaped tube holder 5 is set to the opposite direction.

[0054] The upper surface of the vehicle body 2 is formed flat. A trolley stopper 10 is mounted on the upper surface of the vehicle body 2. The trolley stopper 10 is mounted on the upper surface of the vehicle body 2 in a detachable manner by bolt fastening or the like. The trolley stopper 10 includes a rectangular plate-shaped substrate 11 having a size substantially the same as that of the upper surface of the vehicle body 2. A plurality of guide grooves 12 extending in the front-rear direction are arranged on the upper surface side of the substrate 11. In the present embodiment, two guide grooves 12 are provided on the right and left sides, respectively, across the center position of the substrate 11 in the left-right direction. The guide grooves 12 constitute a guide rail in the present embodiment extending in a direction intersecting the vertical direction.

[0055] In this embodiment, two base blocks 13 are respectively installed in the outer two guide grooves 12 of the four guide grooves 12. A locking member 15 that can lock a transported trolley 14 as a form of a transported body is installed on each base block 13. The locking member 15 includes a support pipe 16 and two upper and lower clamping devices 17. The support pipe 16 stands upward from the base block 13. The upper and lower clamping devices 17 are installed in a manner that the height can be adjusted relative to the support pipe 16.

[0056] The transported trolley 14 is provided with a loading plate 18, a leg column 19 and a caster 20. Articles can be loaded on the loading plate 18. In addition, an operator can also be loaded on the loading plate 18. That is, the loading plate 18 can be used as a pedal for the operator. Four leg columns 19 extend downward from positions close to the four corners of the loading plate 18. The caster 20 is mounted on the lower end of each leg column 19. Two fixed pipes 21 extending in the left and right directions are mounted in a manner separated up and down on the left and right leg columns 19 located on the front side of the transported trolley 14. Similarly, two fixed pipes 21 extending in the left and right directions are also mounted in a manner separated up and down on the left and right leg columns 19 located on the rear side of the transported trolley 14. Such a plurality of fixed pipes 21 are respectively arranged at a position higher than the trolley stopper 10 of the transport vehicle 1. In addition, the caster 20 is mounted on the lower end of each leg column 19 in a swingable manner. Therefore, when an external force in a predetermined direction acts on the transport vehicle 1 from the transport vehicle 1, the casters 20 rotate in the direction in which the external force acts. Therefore, the transport vehicle 14 can move in the same direction as the propulsion direction of the transport vehicle 1.

[0057] When transporting the transported trolley 14, the transport trolley 1 is arranged between the left and right leg columns 19 of the transported trolley 14. At this time, the trolley stopper 10 of the upper part of the transport trolley 1 is located below the loading plate 18 of the transported trolley 14. After that, the locking member 15 is installed on the base block 13 on each of the left and right guide grooves 12 in a manner that the support pipe 16 stands upward. The locking member 15 is respectively arranged in front and behind the transported trolley 14, and the upper and lower clamping devices 17 are connected to the corresponding locked pipes 21 of the transported trolley 14.

[0058] Figure 2 It is along Figure 1 Cross-sectional view along line II-II. Figure 3 It is a perspective view showing the guided block 25 to which the coupling member 30 described later is attached. Figure 4 This is a three-dimensional view of the guided block 25 with the connecting member 30 installed, viewed from another angle. Figure 5 It is along Figure 1 A cross-sectional view of line VV.

[0059] like Figure 2 , Figure 5 As shown, each guide groove 12 of the carriage locking block 10 is formed by joining a pair of groove-forming blocks 22 having an L-shaped cross section to the upper surface of the substrate 11. The L-shaped cross section of the groove-forming block 22 extends longitudinally in one direction, and one end side of the L-shaped cross section is welded and fixed to the upper surface of the substrate 11. A slit 23 (opening) of a certain width extending along the extending direction of the groove-forming block 22 is formed between the other ends of the pair of groove-forming blocks 22. That is, the guide groove 12 has the slit 23.

[0060] Furthermore, when the number of guide grooves 12 is two or more, that is, when a plurality of guide grooves 12 are provided on the upper portion of the vehicle body, a plurality of slits 23 are provided in a one-to-one correspondence with the plurality of guide grooves 12. In the plurality of guide grooves 12, the flat surfaces of the upper side edges of the plurality of slits 23 are formed so as to all have the same height.

[0061] The recessed portion of the guide groove 12 formed in this way, which is formed by the upper surface of the base plate 11 and the upright walls of the left and right groove forming blocks 22, extends in the front-back direction (a direction intersecting the vertical direction). In addition, at the opening edge of the above-mentioned recessed portion, the anti-slip flange 24 extending inward is formed by the horizontal walls of the left and right groove forming blocks 22.

[0062] The guided block 25 is accommodated in the pocket portion (the pocket portion excluding the slit 23) of the guide groove 12 configured as described above so as to be movable in the front-rear direction. The guided block 25 is formed in a rectangular parallelepiped shape that is short in the up-down direction. Figure 3 , Figure 4 As shown, the guided block 25 is formed with a threaded hole 26 in a manner that penetrates in the up-down direction. A connector 30 having an external threaded portion 27 is threadedly engaged with the threaded hole 26. The connector 30 has a rod 28, the external threaded portion 27 described above, and a head 29. The rod 28 has a predetermined outer diameter that is smaller than the width of the slit 23 of the guide groove 12. The external threaded portion 27 is formed on one end side of the rod 28. The head 29 is formed on the other end side of the rod 28. The head 29 of the connector 30 is formed in a manner that has an outer diameter that is larger than the width of the slit 23. A tool engaging hole 29a for a screwing tool to be engaged is formed on the end surface of the head 29.

[0063] In addition, chamfered portions 25a are provided at the corners on both sides of the lower end of the guided block 25. The chamfered portions 25a extend in the front-to-back direction, preventing the guided block 25 from interfering with the unillustrated welding portion (weld bead) between the substrate 11 and the left and right groove-forming blocks 22. In the present embodiment, the guided block 25 is formed into a square shape when viewed from above, but the guided block 25 can also be set to a rectangular shape in which the length in the front-to-back direction is longer than the length in the left-to-right direction when viewed from above. At this time, it is desired that the length in the left-to-right direction of the guided block 25 is longer than the left-to-right width of the bag-shaped portion of the guide groove 12. Thus, it is possible to prevent the guided block 25 from being received into the guide groove 12 in the wrong orientation.

[0064] In addition, in the present embodiment, the guided block 25 constitutes a guided portion that is guided by the guide groove 12 (guide rail) and is movable together with the base block 13 .

[0065] The base block 13 includes a first block 13F and a second block 13S. The first block 13F is placed on the upper edge of the slit 23 of the guide groove 12. The second block 13S is fixed to the first block 13F by a plurality of bolts 31 in a state of being superimposed on the upper surface of the first block 13F. The first block 13F is made of a thick metal plate having a width in the left-right direction greater than the width of the upper edge of the guide groove 12.

[0066] The upper edge of the slit 23 on which the first block 13F is placed is formed of a substantially horizontal flat surface. The flat surfaces of the upper edge of the slit 23 of each guide groove 12 are formed so that all of them have the same height.

[0067] The second block 13S includes a plate portion 32 and a cylinder portion 33. The plate portion 32 is a metal plate that is stacked on the upper surface of the first block 13F. The cylinder portion 33 is welded and fixed to the approximate center of the upper surface of the plate portion 32 and is made of metal. The plate portion 32 is fastened and fixed to the first block 13F by a plurality of bolts 31. The cylinder portion 33 stands upward from the upper surface of the plate portion 32 with its axis facing vertically upward. The lower end of the support tube 16 that is provided as the locking member 15 can be engaged with the outer peripheral surface of the cylinder portion 33. The locking member 15 is supported on the base block 13 in a state where the lower end of the support tube 16 is engaged with the cylinder portion 33.

[0068] The length of the plate portion 32 of the second block 13S in the front-to-back direction is shorter than that of the first block 13F in the front-to-back direction. A through hole 34 is formed in the front portion of the first block 13F extending forward relative to the second block 13S and in the rear portion extending rearward relative to the second block 13S. Figure 2 ). The rod portion 28 of the connecting member 30 passes through the through hole 34 from above. The external thread portion 27 on the top side of the rod portion 28 that passes through the through hole 34 is threadedly engaged with the guided block 25 in the guide groove 12. If the connecting member 30 is further screwed in using the screw-in tool, the threaded engagement depth of the external thread portion 27 and the guided block 25 gradually becomes deeper, and the upper edge of the guided block 25 is pressed against the left and right anti-slip flanges 24 of the guide groove 12. As a result, the left and right anti-slip flanges 24 are firmly clamped and fixed by the head portion 29 of the connecting member 30 and the guided block 25. As a result, the base block 13 supporting the corresponding locking member 15 is fixed in position relative to the guide groove 12.

[0069] Furthermore, when the screwing of the coupling member 30 is loosened from this state, the fixed position of the base block 13 can be readjusted.

[0070] In addition, in the present embodiment, four guide grooves 12 arranged in the left-right direction are provided in the carriage locking block 10 fixed to the vehicle body 2. Therefore, the guide groove 12 can be arbitrarily selected, and the base block 13 can be fixed relative to the selected guide groove 12. Therefore, the setting width and the left-right position of the locking member 15 supported by the base block 13 can be freely adjusted.

[0071] The plurality of groove blocks 22 constituting the guide groove 12 are heavy and strong structures. In the present embodiment, these groove blocks 22 are arranged just above the four driving wheels 3. Therefore, a part of the guide rail (guide groove 12) is arranged just above the driving wheels 3. In this case, the load of the guide rail (guide groove 12), the locking member 15, etc. acts on the driving wheels 3 from just above, so that the driving force of the driving wheels 3 can act on the road surface efficiently when the transport vehicle 1 is traveling. Therefore, the driving stability and turning performance of the transport vehicle 1 can be well maintained.

[0072] The locking structure of the transport vehicle 1 of this embodiment is configured such that the base block 13 supporting the locking member 15 and the guided block 25 in the guide groove 12 can move along the guide groove 12 on the vehicle body 2. Furthermore, the position of the base block 13 can be fixed at any position on the guide groove 12 by a connecting member 30 as a fixing portion.

[0073] When changing the position of the locking member 15 on the vehicle body 2, the position fixation of the base block 13 by the connecting member 30 is released, and in this state, the base block 13 and the guided block 25 are moved to a desired position along the guide groove 12. Thereafter, the base block 13 is fixed relative to the guide groove 12 by the connecting member 30. Thus, the locking position of the locking member 15 on the transported carriage 14 is adjusted to an appropriate position.

[0074] Therefore, the locking structure of this embodiment can lock various transported carts 14 of different sizes and shapes by appropriately adjusting the supporting position of the locking member 15 on the vehicle body 2 as described above. Therefore, the transport vehicle 1 can transport various transported carts 14 of different sizes and shapes.

[0075] Therefore, when the locking portion structure of the present embodiment is adopted, it is possible to transport various transported carts 14 having different specifications while simplifying the structure.

[0076] In addition, the guide track of the guiding base block 13 and the guided block 25 (guided portion) of the locking portion structure of the present embodiment is composed of a guide groove 12. The recessed portion of the guide groove 12 that opens upward (in one direction) extends in the front-to-back direction (a direction intersecting the vertical direction). In the guide groove 12, an anti-slip flange 24 extending inward is provided at the opening edge of the recessed portion. And the guided block 25 is accommodated in the recessed portion of the guide groove 12 in a movable manner. Moreover, the guided block 25 is configured to be fixed by a connecting member 30 as a fixing portion, and is pressed against the anti-slip flange 24 due to the screwing in of the connecting member 30. Therefore, the guided block 25 connected to the base block 13 is stably supported by the guide groove 12 with the anti-slip flange 24. Therefore, when this structure is adopted, the locking member 15 that locks the transported trolley 14 can be more stably supported on the vehicle body 2.

[0077] In addition, the slit 23 of the guide groove 12 of the locking portion structure of the present embodiment opens vertically upward. The upper edge of the slit 23 is composed of a substantially horizontal flat surface. Therefore, the base block 13 supporting the locking member 15 is stably supported by the substantially horizontal flat surface of the upper edge of the slit 23. In addition, in the case of this structure, the upper edge of the slit 23 on which the base block 13 is placed is a flat surface, so that the base block 13 can be smoothly moved above the guide groove 12 when the position of the locking member 15 is adjusted.

[0078] Furthermore, the upper surface side of the plurality of guide grooves 12 arranged separately in the left-right direction of the locking portion structure of this embodiment is composed of a flat surface of the same height. Figure 6 As shown, the cargo 40 can be stably placed on the upper edge of the plurality of guide grooves 12. Figure 6 It is a diagram for explaining a method of placing the cargo 40. Figure 6 is with Figure 1 The corresponding stereogram.

[0079] Therefore, when the locking portion structure of the present embodiment is adopted, the dead space on the guide groove 12 can be effectively utilized to convey the cargo 40 in a good manner.

[0080] In addition, the carriage stopper 10 forming the guide groove 12 (guide rail) of the locking portion structure of the present embodiment is installed on the vehicle body 2 in a detachable manner by bolt fastening or the like. Therefore, the guide groove 12 (guide rail) can be replaced with another appropriate guide rail of different size and shape according to the transported carriage 14, the transported place, etc. Therefore, when this structure is adopted, more diverse specifications of the transported carriage 14 can be transported, and the above-mentioned effect can also be obtained in a variety of usage environments.

[0081] <Second embodiment>

[0082] Figure 7 It is a perspective view showing the structure of the support portion of the locking member 15 according to the present embodiment. Figure 8 It is along Figure 7 A cross-sectional view taken along line VIII-VIII.

[0083] The locking portion structure of this embodiment is different from the first embodiment in the structure of the base block 113 supporting the locking member 15. The other parts have the same structure as the structure of the first embodiment. The base block 113 includes a first block 113F and a second block 113S. The first block 113F is fixed to the guide groove 12 in a detachable manner by the guided block 25 and the connecting member 30. The second block 113S is fixed to the upper part of the first block 113F by a plurality of bolts 31.

[0084] A fitting hole 42 is formed in the approximate center of the first block 113F and passes through the first block 113F in the up-down direction. The inner diameter of the fitting hole 42 is set to be substantially the same as the outer diameter of the lower end side of the support tube 16 of the locking member 15. The lower end of the support tube 16 is fitted into the fitting hole 42.

[0085] The second block 113S includes a plate portion 132 and a cylinder portion 133. The plate portion 132 is fixed to the upper surface of the first block 113F by a plurality of bolts 31. The cylinder portion 133 protrudes upward from the approximate center of the plate portion 132. A through hole 43 having a substantially same diameter is formed in the plate portion 132 at the same position as the fitting hole 42 of the first block 113F. The cylinder portion 133 is formed to have the same inner diameter as the inner diameter of the through hole 43. The lower end of the locking member 15 passes through the cylinder portion 133 and the through hole 43 and fits into the fitting hole 42 of the first block 113F having a thickness.

[0086] In addition, a plurality of reinforcing ribs 44 are fixed to the outer peripheral surface of the cylinder 133. The lower end of each reinforcing rib 44 is fixed to the upper surface of the plate 132. The cylinder 133 is restricted from falling down by the plurality of reinforcing ribs 44. In addition, after the lower end of the support tube 16 passes through the cylinder 133 and the through hole 43 and is engaged with the engaging hole 42 of the first block 113F, the support tube 16 is fixed to the cylinder 133 by the screw 45 that passes through the peripheral wall of the cylinder 133.

[0087] In the locking structure of the present embodiment, the lower end of the support tube 16 passes through the second block 113S and the first block 113F, and is engaged with the cylinder 133, the through hole 43, and the engagement hole 42. Therefore, the lower end of the support tube 16 can be held from the radially outer side in a manner with a sufficiently deep engagement amount. Moreover, in the present embodiment, a plurality of reinforcing ribs 44 are fixed to the outer peripheral surface of the cylinder 133 of the second block 113S. The lower surfaces of these reinforcing ribs 44 are fixed to the upper surface of the plate 132. Therefore, the fall of the support tube 16 that is locked to the transported carriage can be strongly restricted.

[0088] Therefore, when the locking portion structure of the present embodiment is adopted, various transported carts having different specifications can be firmly locked by the locking member 15 without shaking.

[0089] <Third embodiment>

[0090] Fig. 9 It is a perspective view showing the transport vehicle 201 according to the present embodiment.

[0091] The trolley stopper block of the transport vehicle 201 of the present embodiment, which is fixed to the upper surface of the vehicle body 2 in a detachable manner, is not a block, but is composed of two trolley stopper blocks 210A and 210B separated in front and back of the transport vehicle 201. The trolley stopper block 210A on the front side is provided with a substrate 11A. The substrate 11A has a front-to-back length shorter than half the length of the front-to-back length of the upper surface of the vehicle body 2. On the upper surface side of the substrate 11A, four guide grooves 12 extending in the front-to-back direction are arranged in the left-right direction. Similarly, the trolley stopper block 210B on the rear side is provided with a substrate 11B. The substrate 11B has a front-to-back length shorter than half the length of the front-to-back length of the upper surface of the vehicle body 2. On the upper surface side of the substrate 11B, four guide grooves 12 extending in the front-to-back direction are arranged in the left-right direction.

[0092] The front trolley locking block 210A and the rear trolley locking block 210B are arranged in a front-rear separated manner on the upper surface of the vehicle body 2. As in the first embodiment described above, the base block used for supporting the locking member is detachable relative to the guide grooves 12 of the front and rear trolley locking blocks 210A and 210B.

[0093] <Fourth embodiment>

[0094] Fig.10 It is a perspective view showing the transport vehicle 301 according to the present embodiment.

[0095] The transport vehicle 301 of this embodiment has two trolley stop blocks 310A and 310B fixed to the upper surface of the vehicle body 2 in a manner that they are separated and detachable. The trolley stop blocks 310A and 310B at the front and rear of the transport vehicle 301 are formed with two guide grooves 12 extending in the left and right directions on the upper surface sides of the substrates 11A and 11B. In this embodiment, as in the first embodiment described above, the base blocks for supporting the locking member are also detachable relative to the guide grooves 12.

[0096] <Fifth embodiment>

[0097] Fig.11 It is a perspective view showing the transport vehicle 401 according to the present embodiment.

[0098] The transport vehicle 401 of this embodiment has two trolley stop blocks 210A and 310B fixed on the upper surface of the vehicle body 2 in a manner that is separated from each other and can be detached. The trolley stop block 210A on the front side has four guide grooves 12 extending in the front-to-back direction formed on the upper surface side of the base plate 11A. Two guide grooves 12 extending in the left-right direction are formed on the upper surface side of the trolley stop block 310B on the rear side. In this embodiment, as in the first embodiment described above, the base block for supporting the locking member is also detachable relative to each guide groove 12.

[0099] <Sixth embodiment>

[0100] Fig.12 It is a perspective view showing the transport vehicle 501 according to the present embodiment.

[0101] The transport vehicle 501 of this embodiment has two carriage stoppers 510A and 510B fixed to the upper surface of the vehicle body 2 in a manner that they can be separated and detached. The plurality of groove forming pieces 50 of the front and rear carriage stoppers 510A and 510B are fixed to the base plates 11 via support pillars 51 .

[0102] The plurality of groove forming pieces 50 are formed of square-shaped plates of the same size. The plurality of groove forming pieces 50 are arranged in a matrix with a certain gap in the front-back direction and the left-right direction. In the present embodiment, the arrangement of the groove forming pieces 50 is utilized to form a plurality of guide grooves 12v extending in the front-back direction and a plurality of guide grooves 12l extending in the left-right direction. In the present embodiment, similarly to the first embodiment described above, a base block for supporting the locking member is also provided that can be detached relative to each guide groove 12v, 12l.

[0103] In the present embodiment, the base block can be adjusted to any fixed position in the front-rear direction and the left-right direction along the guide grooves 12v and 12l of the carriage locking blocks 510A and 510B.

[0104] The locking structure of the above-mentioned third to sixth embodiments is composed of a carriage locking block having a plurality of guide grooves 12 (12v, 12l) divided into two pieces. Therefore, in these embodiments, it is possible to suppress the space occupied by unnecessary guide grooves 12 (12v, 12l) according to the specifications of the transported carriage, and at the same time, appropriately set the position and orientation of the guide grooves 12 (12v, 12l) on the vehicle body 2. Therefore, when these structures are adopted, it is possible to seek to reduce the size and weight of the transport vehicles 201 to 501, while transporting transport vehicles of various specifications.

[0105] In addition, especially in Fig.12In the sixth embodiment shown, a plurality of guide grooves 12v extending in the front-rear direction and a plurality of guide grooves 12l extending in the left-right direction are simultaneously formed by using a plurality of groove forming sheets 50 arranged in a matrix. Therefore, when the structure of this embodiment is adopted, the degree of freedom of position adjustment of the base block (locking member) is further improved, and a more diverse range of transported carts can be transported.

[0106] In addition, Fig.12 In the embodiment shown, each carriage stopper 510A, 510B arranged separately in the front and rear is formed with guide grooves 12v and guide grooves 12l by using a plurality of groove forming pieces 50 arranged in a matrix. However, it is also possible to form the carriage stopper with one piece and to form guide grooves 12v and guide grooves 12l in the same manner in the piece.

[0107] <Seventh embodiment>

[0108] Fig.13 15 is a diagram showing a support portion of the locking member 15 of the present embodiment, and is Figure 2 , Figure 8 The corresponding cross-sectional view.

[0109] The guide rail provided on the upper part of the vehicle body 2 of the locking portion structure of the present embodiment is composed of a guide rail 60. The guide rail 60 includes a support portion 61 and a guide rail body 62. The support portion 61 stands up from the upper surface of the substrate 11. The guide rail body 62 is formed at the upper end portion of the support portion 61 to have a width wider than the width of the support portion 61 in the left-right direction. In addition, the locking portion structure of the present embodiment has a base block 613 that supports the locking member 15. The base block 613 includes a first block 613F and a second block 613S. The first block 613F is supported on the upper surface of the guide rail body 62 of the guide rail 60. The second block 613S is stacked and fixed on the upper surface of the first block 613F.

[0110] The first block 613F includes a pair of guide arms 65. The pair of guide arms 65 extend downward from the left and right side edges in a hook shape (L-shape). The pair of guide arms 65 face the side surface and the lower surface of the guide rail body 62 of the guide rail 60. The lower surface of the upper wall of the first block 613F and the pair of guide arms 65 form a guide groove 70 that surrounds the periphery of the guide rail body 62. The guide groove 70 of the first block 613F of the base block 613 is guided in the front-rear direction by the guide rail body 62 of the guide rail 60.

[0111] In the present embodiment, the pair of guide arms 65 formed integrally with the first block 613F constitutes a guided portion.

[0112] The second block 613S includes a plate portion 32 fastened to the upper surface of the first block 613F by a plurality of bolts 31 and a tube portion 33 protruding upward from the plate portion 32. The support pipe 16 of the locking member 15 similar to the first embodiment is supported by the tube portion 33 in a fitted state.

[0113] A threaded hole 68 is formed at the center position in the left-right direction of the upper wall of the first block 613F and penetrates in the up-down direction. In addition, a through hole 67 is formed at a position corresponding to the threaded hole 68 of the plate portion 32 of the second block 613S. The rod portion 71a of the fixing bolt 71 that penetrates the through hole 67 of the plate portion 32 is threadedly engaged with the threaded hole 68 of the first block 613F. The fixing bolt 71 is screwed in from the upper side of the plate portion 32 using a screwing tool. When the fixing bolt 71 is screwed in more than a predetermined amount, the top end of the rod portion 71a is pressed against the upper surface of the guide rail body 62 of the guide rail 60. As a result, the base block 613 is fixed in position relative to the guide rail 60.

[0114] In the present embodiment, the fixing portion that can fix the position of the base block 613 with respect to the guide rail 60 (guide rail) is formed by the fixing bolt 71 .

[0115] As described above, the locking portion structure of the present embodiment is configured such that the base block 613 supporting the locking member 15 and the guide arm 65 as the guided portion are integrally formed, and these can move along the guide rail 60. Furthermore, the position of the base block 613 can be fixed at any position on the guide rail 60 by the fixing bolt 71 as the fixing portion. Therefore, the locking portion structure of the present embodiment is different from the first embodiment in terms of the specific structure of the guide rail, the guided portion, the fixing member, etc., but the same basic effect as the basic effect of the first embodiment described above can be obtained.

[0116] That is, by properly adjusting the supporting position of the locking member 15 on the vehicle body 2, various transported carts of different sizes and shapes can be locked. Therefore, when the locking portion structure of this embodiment is adopted, it is also possible to simplify the structure and transport various transported carts of different specifications.

[0117] In addition, the present invention is not limited to the above-mentioned embodiment. Various design changes can be made within the scope of the main purpose of the present invention. For example, in the above-mentioned embodiment, the transported trolley 14 is used in which the legs 19 protrude downward from the four corners of the loading plate 18 and the casters 20 are installed at the lower ends of the legs 19, but the structure and shape of the transported trolley 14 are not limited to this. If the transported trolley 14 can move on the road with the help of wheels, it can adopt other structures and shapes.

[0118] Furthermore, in the above-described embodiment, an unmanned transport vehicle is used as the transport vehicle, but the transport vehicle may also be a manned transport vehicle with a driver on board.

[0119] In addition, in the above-mentioned embodiment, the locking member 15 having the support pipe 16 and the pair of clamping devices 17 is adopted. The locking member is not limited to this structure as long as it can lock the transported carriage 14 in a state supported by the base block 13. For example, the part supported by the base block 13 may be a structure other than the pipe material, and the part that locks the transported carriage 14 may also be a locking mechanism other than the clamping device 17.

[0120] Furthermore, in the third to sixth embodiments, each block having a guide rail is fixed to the upper surface of the vehicle body 2 of the transport vehicle by bolt fastening or the like, but at least one of the blocks may be configured to be positionally adjustable by an actuator. In addition, the number of blocks provided on the upper surface of the vehicle body 2 is not limited to two. The number of blocks may also be three or more.

[0121] In the above-mentioned embodiment, the guide groove and the guide rail are described as the guide rail, but the guide rail is not limited to these. The guide rail may be, for example, a structure in which the guide groove and the guide rail are combined.

[0122] In addition, the above description is based on an example in which a transport vehicle transports a transported cart, but the transported object transported by the transport vehicle is not limited to the transport cart. The transported object transported by the transport vehicle may be, for example, a rack, a pallet, a forklift, a lift, a crane, a robot, etc.

[0123] In the embodiments disclosed in this specification, a component composed of multiple objects may be integrated into one, or a component composed of one object may be divided into multiple objects. Regardless of whether the components are integrated or not, they may be configured in a manner that can achieve the purpose of the invention.

Claims

1. A locking structure of a transport vehicle, wherein: The locking structure of the transport vehicle has: A guide rail disposed on an upper portion of the vehicle body; A base block, which supports a locking member capable of locking the transported object; a guided portion, which is guided by the guide rail and can move together with the base block; as well as A fixing portion can fix the position of the base block relative to the guide rail.

2. The locking structure of the transport vehicle according to claim 1, wherein: The guide rail is composed of a guide groove, a concave portion of the guide groove opening in one direction extending in a direction intersecting the vertical direction, and an anti-slip flange extending inwardly is provided at an opening edge of the concave portion of the guide groove. The guided portion is movably accommodated in the recessed portion. The fixing portion is constituted by a connector capable of fixing the guided portion so as to press the guided portion against the anti-separation flange.

3. The locking structure of the transport vehicle according to claim 2, wherein: The guide groove opens vertically upward. An upper edge portion of the opening of the guide groove is formed of a substantially horizontal flat surface.

4. The locking structure of the transport vehicle according to claim 3, wherein: The guide track is composed of a plurality of guide grooves. The plurality of guide grooves respectively correspond to the guide grooves, The plurality of guide grooves are provided on the upper portion of the vehicle body, The plurality of guide grooves have a plurality of openings that open vertically upward and correspond to each other in a one-to-one manner. The flat surfaces of the upper edge portions of the plurality of openings are set at the same height.

5. The locking structure of the transport vehicle according to claim 1, wherein: The guide rail is detachably mounted relative to the vehicle body.

6. The locking structure of the transport vehicle according to claim 5, wherein: The guide rails are provided in a plurality of blocks separated from each other.

7. A transport vehicle, wherein: The transport vehicle has: a vehicle body having drive wheels; A guide rail disposed on an upper portion of the vehicle body; A base block, which supports a locking member capable of locking the transported object; a guided portion, which is guided by the guide rail and can move together with the base block; as well as A fixing portion can fix the position of the base block relative to the guide rail.

8. The transport vehicle according to claim 7, wherein: A portion of the guide rail is disposed just above the drive wheel.

Images