JP2009006802A - Parent and child wheeled cart - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily connect a parent wheeled cart and a treatment chamber in order to deploy and retract a child wheeled cart between the parent wheeled cart and the treatment chamber by moving the child wheeled cart, and when the child wheeled cart is loaded to the parent wheeled cart or the treatment chamber, to automatically lock the child wheeled cart to the parent wheeled cart or the treatment chamber without requiring a manual operation. <P>SOLUTION: A bridge plate 28 is provided to a front end portion of the parent wheeled cart 6 so as to be pivotable around a support shaft 30, for bridging between the parent wheeled cart 6 and a treatment chamber 3. A stopper 21 is a member extending to a front-and-rear direction along which a child wheeled cart 7 travels. The stopper 21 is provided to a rear end portion of the child wheeled cart 7 so as to be pivotable around a support shaft 49 along a right-and-left direction, and is arranged such that a front end portion thereof is lowered due to its own weight to be inclined. When the child wheeled cart 7 is loaded from the treatment chamber 3 to the parent wheeled cart 6 or from the parent wheeled cart 6 to the treatment chamber 3, the front end portion of the stopper 21 runs onto inclined faces 27 and 57 provided to stopper portions 22 and 53 to be fitted into recessed portions 25 and 56 provided to the stopper portions 22 and 53. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a carriage used for putting food materials and sterilized materials into and out of a processing tank of a food machine or a sterilizer, for example. In particular, the present invention relates to a parent-child cart that can be transported by placing a child cart on the parent cart, and the child cart travels between the main cart and the processing tank.

  Patent Document 1 below discloses that the tray carriage (1) is taken in and out between the carriage carrier (27) and the sterilization tank. Further, with the tray cart (1) placed on the cart transport vehicle (27), the latch hole (16) of the lock plate (17) of the tray cart (1) and the slider of the cart transport vehicle (27). It is disclosed that the tray carriage (1) is fixed to the carriage carrier (27) by inserting a retaining pin (26) into the locking blind hole of (23).

Patent Document 2 below discloses that a multi-stage tray (12) is taken in and out between a transport cart (15) and a steamer body (11). Furthermore, with the multi-stage tray (12) placed on the mounting base (17) of the steamer main body (11), the holding base (17) and the multi-stage tray (12) are locked and retained by a drop lock etc. It can be attached and detached with the tool (19). In addition, with the multi-stage tray (12) placed on the transport cart (15), there is a locking holder (26) between the transport cart (15) and the multi-stage tray (12) such as a drop lock. It is possible to attach and detach.
JP 7-313127 A (paragraph numbers [0008], [0009]) JP 2006-43092 A (paragraph numbers [0015], [0016], [0024])

  In the invention disclosed in each of the above patent documents, the child cart (tray cart, multi-stage tray) is detachably locked to the master cart (cart cart, transport cart) or the processing tank (sterilization tank, steamer body). However, for the locking, it was necessary to manually operate pins, locks and the like after the child cart was placed on the master cart or the treatment tank. In addition, at that time, it is necessary to align the pin with the hole through which the pin passes.

  The problem to be solved by the present invention is to automatically position the child carriage on the parent carriage or the treatment tank without requiring a manual operation when the child carriage is loaded on the parent carriage or the treatment tank.

  The present invention has been made to solve the above-mentioned problems. The invention according to claim 1 is directed to a main carriage that is bridged over or abutted with a carry-in destination, and between the master carriage and the carry-in destination. A parent-child trolley comprising a child trolley that is moved in and out and has a stopper that is locked to a locking portion of the parent trolley as the loading destination is loaded onto the parent trolley.

  According to the first aspect of the present invention, the child carriage is locked to the parent carriage by the stopper as the child carriage is loaded onto the parent carriage from the destination such as the processing tank. Therefore, the positioning of the parent cart and the child cart can be easily performed automatically without requiring manual operation.

  The invention described in claim 2 is characterized in that the child cart is locked to the locking portion of the carry-in destination by the stopper as the child cart is loaded onto the carry-in destination. Item 2. The parent-child cart according to item 1.

  According to the second aspect of the present invention, the child cart is locked at the desired position of the carry-in destination by the stopper as the child cart is loaded onto the carry-in destination such as the processing tank from the master cart. Therefore, positioning of the carrying-in destination such as the processing tank and the child cart is easily performed automatically without requiring a manual operation.

  According to a third aspect of the present invention, the stopper is a member that extends in the front-rear direction in which the child carriage travels, and is provided at the rear end of the child carriage so as to be swingable about an axis extending in the left-right direction. The front end of the stopper is inclined by being lowered by its own weight or urging force, and the front end of the stopper is inclined on the inclined surface provided on the stopper or the locking portion. It rides on a surface and fits into a recess provided in the locking part, or the front end of the stopper fits into a recess that constitutes the locking part. The parent-child cart described.

  According to the third aspect of the present invention, the stopper is provided to be inclined with its front end lowered downward due to its own weight or urging force. The part gets over the inclined surface and fits into the recess, or the front end simply fits into the recess and is locked. And the release | release of the latch only needs to lift the front-end part of a stopper. In this way, it is possible to reliably position and release the child carriage with a simple configuration. Further, since the stopper is provided so as to be swingable at the rear end portion of the child carriage, it is easy to release the locking of the child carriage with respect to the parent carriage or the carry-in destination from the front side (the rear end portion of the child carriage). It can be carried out. Therefore, even when the carry-in destination is heated in the processing tank of the food machine or the sterilizer, it is possible to easily release the lock at the opening of the processing tank.

  According to a fourth aspect of the present invention, a transfer plate for bridging between the carry-in destination is provided at the front end portion of the main carriage so as to be rotatable about a pivot along the left-right direction. The operation of a handle provided at the rear end of the carriage allows the tip of the transfer plate to be moved up and down around the pivot axis by rotating a cam. The parent-child cart according to item 1.

  According to the fourth aspect of the present invention, since the main carriage and the carry-in destination are bridged by the transfer plate, the sub-cart can easily travel between the main carriage and the carry-in destination and can be taken in and out. Further, the transfer plate rotates around the pivot and can be deployed and stored with respect to the main carriage. Moreover, the unfolding or storing operation can be easily performed with a simple configuration because the cam is rotated by the handle at the rear end of the main carriage.

  Further, the invention according to claim 5 is that the transfer plate is engaged with the carry-in destination when the front end portion is lowered forward around the pivot axis and is bridged to the carry-in destination. It is a parent-child trolley | bogie of Claim 4 characterized by the above-mentioned.

  According to the fifth aspect of the present invention, the delivery between the delivery plate and the carry-in destination can be performed more reliably between the main carriage and the carry-in destination.

  According to the parent and child cart of the present invention, the child cart is automatically locked to the parent cart or the processing tank by the stopper without requiring manual operation when the child cart is loaded on the parent cart or the processing tank or the like. . Therefore, it is possible to easily position the child carriage relative to the parent carriage or the processing tank.

Next, an embodiment of the present invention will be described.
The parent-child cart of the present invention includes a parent cart and a child cart that can be carried on the carriage. The parent cart and the child cart each have a plurality of wheels at the bottom, and can be driven by pushing or pulling. The child cart can be moved in and out between the parent cart and the destination.

  The carry-in destination refers to a place where the child carriage is lowered from the parent carriage or a place where the child carriage is placed on the parent carriage, and typically includes a processing tank such as a food machine or a sterilizer. For example, saturated steam cooker, vacuum cooler, steamer, steam cooler, steam convection oven, vacuum cold air combined cooler, thawing machine, flowing water heating / cooling device, retort sterilizer, steam sterilizer, gas sterilizer, etc. A treatment tank is included.

  Depending on the purpose, the child cart is loaded with food or food or a material to be sterilized. At this time, the object to be transported or the container thereof (for example, hotel pan) may be held on a shelf or a shelf frame provided in the child cart, or simply placed on the carrier that forms the child cart, or the container on the carrier (For example, Banju) may be stacked. In any case, the object to be transported is put into and out of the processing tank together with the child carriage.

  In order to move the child cart between the main carriage and the carry-in destination and put it in and out, the master cart can be suspended or brought into contact with the carry-in destination and stopped. Of course, the parent carriage may be brought into contact with the carry-in destination and bridged. Thus, it arrange | positions so that each floor surface (wheel running surface of a child trolley | bogie) of a main trolley | bogie and a carrying-in destination may continue.

  It is preferable to bridge the main carriage and the carry-in destination with a transfer plate. For this purpose, the main carriage and / or the destination is provided with a transfer plate for bridging the main carriage and the destination. At this time, if a delivery plate is provided in the parent cart, even if there are a plurality of delivery destinations, it is not necessary to provide delivery plates at each delivery destination. Thus, in the present embodiment, a case where a transfer plate is provided on the main carriage will be described, but a case where a transfer plate is provided at the carry-in destination can be similarly configured.

  One or a plurality of transfer plates are provided at the front end of the main carriage. Each transfer plate is composed of a plate material and / or a rail. In the case where the transfer plates are provided on the left and right sides of the front end portion of the master carriage, the left and right wheels of the slave carriage travel on the transfer boards. Alternatively, the left and right transfer plates may be integrated to form a single transfer plate.

  The transfer plate may be provided at the front end portion of the main carriage so as to extend forward and be fixed, but it is preferably provided at the front end portion of the main carriage so that it can be unfolded or stored using a hinge or the like. Specifically, the transfer plate is provided at its front end at the front end of the main carriage so as to be rotatable about a pivot along the left-right direction. And this delivery board is good to expand | deploy or store by rotating a cam by operation of the handle provided in the rear-end part of the main trolley | bogie. At this time, a cam shaft is provided in the lower part of the main carriage along the front-rear direction, and the cam shaft is simply provided with the handle at the rear end portion and the cam fixed at the front end portion. It is. In this case, the transfer plate is retracted by bringing the lower surface of the transfer plate into contact with the cam and raising the tip of the transfer plate around the pivot axis by rotating the cam.

  When the transfer board is developed from the main carriage to the carry-in destination and is bridged between the main carriage and the carry-in destination, the transfer board and the carry-in destination are preferably engaged. For example, a projecting part such as a pin is provided to protrude upward at the carry-in destination, and the projecting part enters the engagement hole (including a groove-shaped member) provided in the delivery board when the delivery board is deployed. The configuration may be made. Alternatively, conversely, a protrusion may be provided on the lower surface of the transfer plate, and this protrusion may be inserted into an engagement hole provided in the carry-in destination.

  As described above, the child carriage travels between the parent carriage and the carry-in destination. In order to position both in a state where the child carriage is mounted on the parent carriage, a stopper provided on the child carriage is engaged with an engaging portion provided on the parent carriage. Alternatively, in addition to or in addition to this, a stopper provided on the slave cart is locked to the locking portion provided on the carry-in destination in order to position both in the state where the slave cart is loaded on the carry-on destination. The configuration is as follows. In either case, the stopper of the child cart is automatically locked to the main cart or the locking part of the destination when loading from the destination to the main cart or from the main cart to the destination. It is good to set it as a structure.

  Specifically, the stopper of the child carriage is a member extending in the front-rear direction in which the child carriage travels, and is provided at the rear end portion of the child carriage so as to be swingable around a support shaft extending in the left-right direction. And this stopper is inclined and provided by dropping the front end part downward by its own weight or urging force. On the other hand, each locking portion of the main carriage and the carry-in destination is configured to include a recess. For example, if the carry-in destination is described as a processing tank, the recess is formed in the upper surface of the main carriage or the bottom surface in the processing tank. Alternatively, one or a plurality of convex portions are provided on the upper surface of the main carriage or the bottom surface in the treatment tank, and the concave portions are formed by the convex portions. In the latter case, the convex portion of the main carriage is formed so as to incline downward as the front end portion thereof moves forward, and the rear end portion of the convex portion in the treatment tank is rearward (on the opening side of the treatment tank). As it goes, it is inclined downward.

  Since it is such a configuration, with the loading of the child cart to the parent cart, or the loading of the child cart to the carry-in destination, the front end of the stopper simply fits into the recess that constitutes the locking portion, When the locking portion has a convex portion, the convex portion rides on the inclined surface provided in the locking portion and fits into the concave portion. Thus, the child carriage is locked and positioned by the parent carriage or the carry-in destination and the stopper. By adjusting the setting position of the locking portion at the main carriage or the carry-in destination, the sub-cart can be positioned at a desired position at the main carriage or the carry-in destination.

  By the way, when a latching part is provided only in either a main trolley | bogie or a carrying-in destination, you may respond by forming an inclined surface in the front-end part of a stopper instead of forming an inclined surface in the said convex part. In that case, the front end portion of the stopper rides on the convex portion by its own inclined surface and fits into the concave portion. Further, the inclined surface formed on the convex portion and the stopper is not limited to a linear plane, and may be an arcuate curved surface.

  In the locked state between the stopper and the locking portion, even if the child cart is pushed or pulled, the movement of the child cart is restricted by the stopper. In order to release this restriction and enable the movement of the child carriage, it is necessary to release the locking between the stopper and the locking portion. For this purpose, the stopper may be rotated a little around the support shaft to lift the front end of the stopper. If the operation part is provided at the rear end part of the stopper so as to extend rearward from the support shaft, the front end part of the stopper can be easily floated upward by pushing down the operation part. In this way, after the slave cart is moved a little while releasing the locking between the stopper and the locking portion, the slave cart can be moved even when the hand is released from the stopper. Then, the child carriage may be caused to travel again until the stopper is locked to the main cart or the locking portion at the carry-in destination.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a schematic perspective view showing a usage state of the first embodiment of the parent-child cart of the present invention. The parent-child trolley 1 of this embodiment is used for putting foods 4 (FIG. 4) in and out of the treatment tank 3 of the saturated steam cooker 2. In FIG. 1, the treatment tank 3 is shown with a part cut away, and the door 5 (FIG. 6) is omitted.

  The parent and child cart 1 of this embodiment is composed of a wagon-shaped parent cart 6 and a child cart 7 that can be carried on the parent cart 6. The child cart 7 is loaded with the food 4 and travels between the main cart 6 and the processing tank 3 and puts in and out.

  The parent cart 6 of the present embodiment includes a frame 9 assembled into a substantially rectangular box shape by means of sections 8, 8,... Having a substantially L-shaped cross section. Casters 10, 10,... Are provided at the lower four corners of the underframe 9, respectively. As is well known, the caster 10 includes a yoke 11 that is bifurcated downward, an axle 12 that spans a groove in the yoke 11, and a wheel 13 that is rotatably supported by the axle 12. In this embodiment, each caster 10 provided on the front left and right sides of the underframe 9 cannot turn the yoke 11, but each caster 10 provided on the back left and right of the underframe 9 can turn the yoke 11. It is said. However, the yokes 11 of all casters 10 may be turnable or non-turnable as desired. By the way, each caster 10 provided on the rear left and right of the underframe 9 includes a foot stopper (not shown). By operating this stepping stopper with the foot, the restriction of the rotation of the wheel 13 and the release thereof can be switched.

  A hand pressing portion 14 is provided at the upper rear portion of the underframe 9. The hand pushing portion 14 of the present embodiment is configured such that the round pipe is bent into a substantially U-shape that opens downward, and both left and right end portions thereof are bent forward in an arc shape, and the tip portion thereof is a frame 9. It is fixed to the left and right ends of the rear upper part. On the other hand, a cushion material 15 is provided at the front end of the underframe 9.

  FIG. 2 is a schematic perspective view showing the upper part of the parent carriage 6 on which the child carriage 7 is placed and connected to the processing tank 3, and the upper part of the child carriage 7 is cut away. Further, the hand pushing portion 14 of the main carriage 6 and a part of the processing tank 3 are cut out and the door 5 of the processing tank 3 is omitted. FIG. 3 is a rear view of the child carriage 7 mounted on the upper portion of the parent carriage 6, and a rail tray 16 described later is shown cut at a portion having the widened portions 17, 17.

  A substantially rectangular shallow box-shaped rail dish 16 that opens upward is provided horizontally on the top of the base frame 9 of the main carriage 6. At this time, the rail pan 16 is provided so as to bridge the front and rear shape members 8, 8 above the underframe 9. Further, the left and right side walls of the rail dish 16 are formed with steps. That is, as shown in FIG. 3, first side walls 19, 19 are formed by extending vertically upward from the bottom wall 18 of the rail dish 16, extending horizontally outward in the left-right direction, and further extending upward. Second side walls 20, 20 are formed. As a result, widened portions 17, 17 extending outward in the left-right direction are formed on the upper portions of the left and right side edges of the rail dish 16. However, the widened portions 17 and 17 are not provided at the front end portion of the rail plate 16, and only the first side walls 19 and 19 are provided to slightly extend forward. Between the left and right first side walls 19, 19, the rail dish 16 is formed to open forward.

  At the center of the rail plate 16, there is provided a locking portion 22 that locks a stopper 21 of a child carriage 7 described later. The locking portion 22 of this embodiment is composed of a first convex portion 23 and a second convex portion 24. The first convex portion 23 and the second convex portion 24 are each formed from a substantially rectangular piece, and are fixed to the upper surface of the bottom wall 18 of the rail pan 16 so as to be separated from each other in the front-rear direction. Thereby, the recessed part 25 (FIG. 5) is formed of the clearance gap between the 1st convex part 23 and the 2nd convex part 24. FIG. As will be described later, a stopper piece 26 provided at the front end portion of the stopper 21 is fitted and locked in the recess 25. By the way, the 1st convex part 23 arrange | positioned ahead is formed in the inclined surface 27 which inclines below as the front-end part goes ahead.

  A transfer plate 28 for bridging the bottom wall 18 of the rail plate 16 and the bottom surface in the processing tank 3 is provided at the front end of the rail plate 16. The transfer plate 28 of the present embodiment is formed of a substantially rectangular plate material, and both left and right side edges are bent perpendicularly to the plate surface to form left and right side walls 29, 29. The base end portions of the left and right side walls 29, 29 of the transfer plate 28 are overlapped with the front end portions of the left and right side walls (first side walls 19, 19) of the rail plate 16, and are respectively pivoted along the left and right directions. It is provided so as to be able to swing (FIG. 4).

  The transfer plate 28 is located between a deployed position (FIGS. 2 and 5) in which the bottom wall 31 is horizontal or slightly lowered at the tip (FIGS. 2 and 5) and a storage position (FIGS. 1 and 4) in which the tip is raised upward. It can be swung around the pivot 30. The unfolding and storing of the transfer plate 28 is performed by rotating the cam 32 provided at the lower part of the transfer plate 28. The cam 32 of the present embodiment is made of a substantially egg-shaped plate material, and is arranged with its plate surface facing forward and backward. The cam 32 is rotated by a cam shaft 33 connected thereto.

  The main carriage 6 includes vertical walls 34 and 34 at the lower portions of the front and rear ends of the rail plate 16 (FIG. 4). The cam shaft 33 is rotatably held along the front-rear direction at the central portion in the left-right direction at the lower part of the rail pan 16 so as to bridge the front-rear vertical walls 34, 34. At this time, the cam shaft 33 is provided so as to extend forward and backward from the rail plate 16 and the front and rear vertical walls 34 and 34, respectively.

  The cam shaft 33 is provided with a handle 35 at the rear end while the cam 32 is fixed at the front end. As described above, the cam 32 according to the present embodiment is formed of a substantially egg-shaped plate material. However, the cam 32 has a front end perpendicular to the plate surface at a position deviated to one side of the longitudinal center of the long axis. The part is fixed. Further, the handle 35 of the present embodiment is formed by bending the rear end portion of the cam shaft 33 vertically.

  The handle 35 is rotatable by a set angle in relation to a handle holding piece 36 provided on the rear vertical wall 34. In the present embodiment, the handle 35 can be rotated by 90 degrees between a horizontal state with the tip portion directed to the right side and a vertical state with the tip portion directed upward. In the horizontal state of the handle 35, the long axis of the cam 32 is horizontally disposed, and the transfer plate 28 is in a developed state. On the other hand, in the vertical state of the handle 35, the long axis of the cam 32 is arranged vertically, and the transfer plate 28 is in the retracted state. By changing the size of the cam 32 or the like, the inclination angle of the transfer plate 28 in the retracted state can be changed.

  As shown in FIGS. 1 and 2, the child cart 7 of the present embodiment is vertically separated from the front and rear end portions of the bottom members 37, 37 disposed in the front-rear direction and spaced apart from each other in the left-right direction. Of the side pillars 38, 38 standing upright, the central pillars 39, 39 standing upright from the center in the front-rear direction of each bottom member 37, and the side pillars 38, 38,. And a top plate 40 held on the top.

  Each bottom member 37 is formed from a substantially U-shaped cross-section member opened downward, and axles 41 are provided at both front and rear ends so as to cross the groove, and wheels 42 are rotatably held on the axles 41. . The wheel 42 is housed in a groove having a substantially U-shaped cross section that forms the bottom member 37 at the upper portion of the peripheral side surface, and the lower portion of the peripheral side surface is lower than the groove of the substantially U-shaped member that forms the bottom member 37. Exposed. The left and right bottom members 37, 37 provided with the wheels 42 in this way have a lateral dimension that is slightly smaller than the separation distance between the first side walls 19, 19 of the rail pan 16 of the main carriage 6.

  Each side column 38 is formed from a substantially U-shaped cross-section material that opens outward in the front-rear direction. That is, each side column 38 erected on the front left and right is disposed with the groove of the substantially U-shaped cross section facing forward, and each side column 38 erected on the rear left and right is substantially U-shaped in cross section. The grooves are arranged facing rearward. On the other hand, the central column 39 is formed of a substantially rectangular plate material that is elongated vertically, and is arranged with its plate surface facing forward and backward. Each central column 39 is provided so as to extend slightly above each side column 38.

  The top plate 40 is formed from a substantially rectangular plate material, and is formed in a gentle triangular shape when viewed from the side (FIG. 4). The top plate 40 is held at the upper ends of the side columns 38 at the four corners, and held at the upper ends of the central columns 39 at the center. At that time, the upper end side of the central piece 43 of the substantially U-shaped cross-sectional material constituting each side column 38 and the front and rear end sides of the top plate 40 are continuously connected.

  The left and right side edges of the top plate 40 are slightly bent upward. This bent portion is continuous with the end pieces on the outer side in the left-right direction of the substantially U-shaped cross-section material constituting each side column 38 at both front and rear end portions. In addition, between the end pieces on the inner side in the left-right direction of the substantially U-shaped cross-section material constituting each side column 38, the front and rear end sides of the top plate 40 are slightly bent upward.

  A substantially L-shaped material 44, 44,... Is fixed between the left and right side columns 38, 38 or between the left and right central columns 39, 39, respectively. At this time, the substantially L-shaped material 44 is provided across the center pieces 43, 43 of the left and right side columns 38, 38 or between the left and right center columns 39, 39. In this embodiment, four substantially L-shaped members 44, 44,... Are provided at a set height, spaced apart at equal intervals in the vertical direction. The substantially L-shaped material 44 fixed to the front and rear side columns 38 is horizontally provided with one piece thereof facing inward in the front-rear direction, and the substantially L-shaped material 44 fixed to the central column 39 is provided with the one piece front and rear. It is provided horizontally toward the outside in the direction.

  In this manner, the hotel pan 45 is detachably held between the substantially L-shaped members 44 facing each other in the front-rear direction. As is well known, the hotel pan 45 is a substantially rectangular stainless steel container that is open only upward, and a brim portion is formed on the upper end portion along the outer periphery. Therefore, the hotel pan 45 is held horizontally with the flanges on the two opposite sides placed on the one piece of the substantially L-shaped members 44, 44 on the front and rear sides. In this embodiment, a total of eight hotel pans 45 can be loaded on the child cart 7, two at the front and rear and four at the top and bottom. By the way, vertical pieces 46 and 46 are provided at the left and right ends of the substantially L-shaped material 44, respectively, so that the hotel pan 45 is prevented from falling off.

  As shown in FIG. 1, in the state where the hotel pans 45, 45,... Are held on the child cart 7, the left and right ends of each hotel pan 45 are exposed to the outside in the left-right direction with respect to the child cart 7. However, since the left and right side edges of the top plate 40 are bent upward, even when the child cart 7 is loaded into the saturated steam cooker 2 and cooked, the condensate of the steam generated on the top plate 40 remains in the hotel. There is no risk of falling into the pan 45. In addition, since the top plate 40 is formed in a triangular shape when viewed from the side, the condensed water is guided to the front and the back of the top plate 40 and discharged downward through a groove of a substantially U-shaped cross section constituting the side column 38. Is done.

  As shown in FIG. 2, a stopper 21 that can be engaged with and disengaged from the locking portion 22 of the parent carriage 6 is provided at the rear end of the child carriage 7. The stopper 21 locks the child cart 7 to the parent cart 6 in a state where the child cart 7 is completely placed on the rail plate 16 of the parent cart 6. The stopper 21 of the present embodiment includes a wire 47 bent in a substantially U shape that opens forward, a round bar-like stopper piece 26 that is fixed to both ends of the opening along the left-right direction, and a center portion in the front-rear direction. It is constituted by a cylindrical member 48 provided slightly rearward along the left-right direction.

  The cylindrical member 48 of the stopper 21 is rotatably held on a support shaft 49 provided at the rear portion of the child carriage 7. That is, a round bar-shaped support shaft 49 is provided at the rear portion of the child carriage 7 so as to bridge the left and right bottom members 37, 37. The support shaft 49 has a small-diameter portion at the center in the left-right direction, and the cylindrical member 48 of the stopper 21 is rotatably fitted in the small-diameter portion. As a result, the stopper 21 can swing around the support shaft 49.

  The cylindrical member 48 of the stopper 21 is formed slightly shorter than the length of the small diameter portion of the support shaft 49. Accordingly, the cylindrical member 48 slides along the small diameter portion, so that the stopper 21 can be moved slightly to the left and right. However, the inner diameter of the cylindrical member 48 is smaller than that of the left and right large diameter portions of the support shaft 49 and is held within the range of the small diameter portion of the support shaft 49. By the way, regardless of the position of the stopper 21 in the left and right direction in the small diameter portion of the support shaft 49 or the position in the left and right direction of the child carriage 7 in the rail plate 16 of the parent carriage 6, the relationship between the stopper 21 and the locking portion 22. Stopping is configured to be accomplished as described below.

  As described above, the stopper 21 is provided so as to be swingable around the support shaft 49 extending in the left-right direction at a position slightly rearward from the central portion in the longitudinal direction (front-rear direction), and the stopper piece 26 is provided at the front end portion. . As a result, the stopper 21 is provided to be inclined with its front end lowered downward by its own weight. Therefore, when the child cart 7 is put in and out between the main cart 6 and the processing tank 3, the stopper piece 26 of the stopper 21 basically hits the bottom wall 18 of the rail dish 16, the bottom surface in the processing tank 3, and the like. It is done while touching.

  The stopper 21 is exposed to be operable at the rear lower portion of the child carriage 7 as the operation portion 50 at the rear end thereof. By pushing the operating portion 50 downward, the stopper 21 rotates around the support shaft 49 and the stopper piece 26 at the front end thereof is raised upward.

  The saturated steam cooker 2 adjusts the pressure in the processing tank 3 to adjust the saturated steam temperature in the processing tank 3, and heats the food 4 in the processing tank 3 with saturated steam at a desired temperature. It is. Moreover, the saturated steam cooker 2 is comprised so that the vacuum cooling or the ventilation cooling of the foodstuff 4 after heat cooking is possible depending on necessity.

  The processing tank 3 of the present embodiment is a metal can body formed in a substantially rectangular hollow box shape. The processing tank 3 includes a processing tank main body 51 that opens to the front side and has a hollow portion, and a door 5 (FIG. 6) that opens and closes the opening of the processing tank main body 51. The processing tank main body 51 is formed with a substantially rectangular hollow portion opened to the front side, and a packing 52 is continuously provided along the outer periphery of the substantially rectangular opening. In the state where the door 5 is closed, the gap between the processing tank main body 51 and the door 5 is sealed with the packing 52.

  The saturated steam cooker 2 is preferably capable of locking the child cart 7 at a desired position in the processing tank 3 when the food 4 is carried into the processing tank 3 together with the child cart 7. Specifically, the treatment tank main body 51 has a hollow portion that is slightly larger than the child carriage 7, but the child carriage 7 is completely placed in the central portion of the hollow portion, and the treatment tank main body 51 is placed in the treatment tank main body 51. 7 is preferably locked. Therefore, it is preferable to provide a locking portion 53 to be locked with the stopper 21 of the child carriage 7 on the bottom surface in the processing tank 3. The locking portion 53 provided in the processing tank 3 has the same configuration as that of the locking portion 22 provided in the main carriage 6 but is provided symmetrically in the front-rear direction.

  Specifically, a locking portion 53 that locks the stopper 21 of the child carriage 7 is provided at the center in the left-right direction of the bottom surface in the processing tank 3. The locking portion 53 includes a first convex portion 54 and a second convex portion 55, similarly to the locking portion 22 provided on the parent cart 6. However, the 1st convex part 54 arrange | positioned in the back (the opening part side of the processing tank 3) is formed in the front-back direction longer than the 1st convex part 23 of the main carriage 6. FIG.

  Moreover, the 1st convex part 54 and the 2nd convex part 55 are spaced apart back and forth similarly to Example 1, and are fixed to the bottom face in the processing tank 3. FIG. Thereby, the recessed part 56 is formed by the clearance gap between the 1st convex part 54 and the 2nd convex part 55. FIG. The stopper piece 26 of the stopper 21 is fitted and locked in the recess 56. The 1st convex part 54 arrange | positioned back is formed in the inclined surface 57 which inclines below as the rear-end part goes back.

  Next, the use of the parent-child cart 1 of the present embodiment will be described. 4 to 6 are schematic longitudinal sectional views showing the usage state of the parent-child cart 1 according to the present embodiment, FIG. 4 shows a state in which the parent-child cart 1 is about to be connected to the treatment tank 3, and FIG. FIG. 6 shows a state in which the child cart 7 is completely loaded in the processing tank 3 by connecting the parent cart 6 and the processing tank 3 and the child cart 7 is loaded in the processing tank 3. The door 5 is closed. 4 and 5, the door 5 of the processing tank 3 is omitted, and in FIG. 6, the closing structure of the door 5 of the processing tank 3 is shown in a simplified manner.

  In the state of FIG. 4, a child carriage 7 is placed on the parent carriage 6, and both are locked by a stopper 21. In other words, the stopper piece 26 of the stopper 21 of the child carriage 7 is fitted in the recess 25 of the locking portion 22 of the parent carriage 6. In the state shown in FIG. 4, the child cart 7 holds a hotel pan 45 in which the food 4 is put. Furthermore, the transfer plate 28 of the parent cart 6 is in a retracted state. The case where the foodstuff 4 is carried into the processing tank 3 of the saturated steam cooker 2 together with the child cart 7 from such a state will be described.

  First, as shown in FIG. 4, with the door 5 of the processing tank 3 opened, the master steamer 2 faces toward the saturated steam cooker 2 so that the front end of the child carriage 7 faces the opening of the processing tank 3. What is necessary is just to push the trolley | bogie 6 forward. When the front end portion of the main carriage 6 hits the front surface of the saturated steam cooker 2 through the cushion material 15, the handle 35 of the cam shaft 33 is rotated 90 degrees clockwise. As a result, the cam 32 rotates, and the transfer plate 28 lowers its tip end downward around the pivot 30. Thereby, the transfer board 28 connects the bottom face in the processing tank 3 and the bottom wall of the rail dish 16 on the same plane or slightly lowers the tip.

  By the way, in the present embodiment, protrusions 58 and 58 are provided on the bottom surface in the processing tank 3 at the left and right lower parts on the opening side of the processing tank 3, respectively. The protrusion 58 is formed in a pin shape that slightly protrudes upward from the bottom surface in the processing tank 3, and its upper end is preferably formed in a substantially hemispherical shape or a tapered shape. These protrusions 58 and 58 are provided at positions that do not interfere with the traveling of the left and right wheels 42 and 42 of the child carriage 7. On the other hand, engagement holes 59 and 59 into which the protrusions 58 and 58 are inserted when the transfer plate 28 is bridged to the processing tank 3 are formed in both the left and right portions of the front end portion of the transfer plate 28. The engagement hole 59 is formed by a round hole or a long hole having a diameter larger than that of the protrusion 58. When the transfer plate 28 is bridged to the processing tank 3, the protrusion 58 of the processing tank 3 enters and engages with the engagement hole 59 of the transfer plate 28, so that the transfer plate 28 is securely attached to the bottom surface of the processing tank 3. Connected to. In this way, in a state where the processing tank 3 and the parent cart 6 are connected, the foot stopper of the caster 10 of the parent cart 6 is operated to position the parent cart 6.

  In this state, as shown in FIG. 5, the child carriage 7 is moved from the parent carriage 6 into the treatment tank 3. At that time, as shown in FIG. 4, in the initial state, the child cart 7 is locked to the parent cart 6 by the stopper 21, so it is necessary to release the locking first. For that purpose, the operation part 50 of the stopper 21 may be pushed downward. Thereby, the stopper 21 can be rotated around the spindle 49 and the front stopper piece 26 can be lifted upward. In this way, the slave carriage 7 may be pushed forward in a state where the stopper 21 and the locking portion 53 are unlocked. After the child carriage 7 advances a little and passes through the recess 25 of the locking portion 22, the hand may be released from the stopper 21.

  When the child cart 7 is placed in the processing tank 3, the stopper 21 of the child cart 7 is locked to the locking portion 53 in the processing tank 3 at a set position in the processing tank 3. This locking is automatically performed by pushing the child carriage 7 into the treatment tank 3. That is, when the stopper piece 26 comes into contact with the inclined surface 57 of the first convex portion 54, the stopper 21 rotates around the support shaft 49 and automatically lifts the stopper piece 26. Then, after passing through the upper surface of the first convex portion 54, the stopper piece 26 fits into the concave portion 56 by its own weight as shown in FIG. Since the front and rear of the recess 56 are formed on vertical surfaces, the locking between the locking portion 53 and the stopper 21 is not released unless the stopper 21 is manually operated. In this way, the child carriage 7 can be positioned at a predetermined position in the processing tank 3.

  Thereafter, the main carriage 6 is cleaned up. First, the handle 35 of the camshaft 33 is rotated 90 degrees counterclockwise to store the transfer plate 28. As a result, the engagement between the protrusion 58 of the processing tank 3 and the engagement hole 59 of the transfer plate 28 is released. And what is necessary is just to operate the foot stopper of the caster 10 of the main trolley | bogie 6, and to release | lock the wheel. Thereby, the movement of the main carriage 6 can be performed freely. Then, as shown in FIG. 6, the door 5 of the processing tank 3 may be closed and the food 4 may be cooked.

  In order to take out the food 4 together with the child carriage 7 from the treatment tank 3 after the cooking of the food 4, an operation reverse to the above may be performed. That is, first, with the door 5 of the treatment tank 3 being opened, the master carriage 6 on which the child carriage 7 is not placed is connected to the treatment tank 3. In other words, the main carriage 6 may be advanced until the front end of the saturated steam cooker 2 hits the front surface, and the transfer plate 28 may be developed by operating the handle 35. Then, the master cart 6 is positioned by operating the foot stopper of the caster 10 of the master cart 6.

  Next, the operation unit 50 of the stopper 21 of the child carriage 7 is pushed downward to release the engagement between the stopper 21 and the engagement part 53 and pull out the child carriage 7 from the processing tank 3. After the child cart 7 is slightly pulled out from the processing tank 3, the hand may be released from the operation unit 50. In this state, as shown in FIG. 5, the stopper 21 is in an inclined state in which the stopper piece 26 at the front end is lowered. Then, the child cart 7 is placed on the parent cart 6. At this time, the child cart 7 is guided between the left and right first side walls 19, 19 of the parent cart 6.

  When the child cart 7 is completely loaded on the parent cart 6, the stopper 21 of the child cart 7 is locked to the locking portion 22 of the parent cart 6. This locking is automatically performed by placing the child cart 7 on the parent cart 6. That is, when the stopper piece 26 comes into contact with the inclined surface 27 of the first convex portion 23, the stopper 21 rotates around the support shaft 49 and automatically lifts the stopper piece 26. Then, after passing through the upper surface of the first convex portion 23, the stopper piece 26 fits into the concave portion 25 by its own weight as shown in FIG. Since the front and rear of the recess 25 are formed on vertical surfaces, the locking between the locking portion 22 and the stopper 21 is not released unless the stopper 21 is manually operated. In this way, the child carriage 7 can be positioned at a predetermined position on the parent carriage 6. By the way, when the child cart 7 is taken out from the saturated steam cooker 2, even if the condensed water of the steam is attached to the child cart 7, the condensed water is left and right widened portions 17, 17 of the rail dish 16 of the parent cart 6. It will be received at.

  Thereafter, the handle 35 of the camshaft 33 is rotated 90 degrees counterclockwise to store the transfer plate 28 and the foot stopper of the caster 10 of the main carriage 6 is operated to unlock the wheel. Thereby, movement of the main trolley | bogie 6 can be made freely and the foodstuff 4 can be carried to a desired place. And you may carry the foodstuff 4 with the subcart 7 into the processing tank of other food machines, such as a vacuum cooler, as needed. Even in that case, the slave cart 7 can be positioned as in the case of the saturated steam cooker 2 by providing the engaging portion 53 in the processing tank of the food machine.

  FIG. 7 is a schematic longitudinal sectional view showing a modification of the first embodiment, and shows a state in which the child carriage 7 is accommodated in the processing tank 3. In the first embodiment, the locking portion 53 of the stopper 21 is configured by providing the first convex portions 23 and 54 and the second convex portions 24 and 55 on the main carriage 6 and the processing tank 3. The recess 56 is simply formed on the bottom surface in the treatment tank 3. Similarly, the locking portion 22 of the main carriage 6 may be configured by simply forming the recess 25 in the bottom wall 18 of the rail dish 16.

  Also in this modified example, the stopper 21 is in an inclined state in which the front stopper piece 26 is dropped downward by its own weight in the normal state. Further, the stopper piece 26 slides and moves on the bottom surface in the processing tank 3 and the bottom wall 18 of the rail dish 16. When the child carriage 7 is arranged at a predetermined position in the main carriage 6 or the processing tank 3, the stopper piece 26 fits into the recesses 25 and 56 by its own weight, and the child carriage 7 enters the main carriage 6 or the processing tank 3. Locked. Since other configurations and use are the same, description thereof will be omitted.

  8 to 10 are schematic views showing Embodiment 2 of the parent-child cart 1 of the present invention, FIG. 8 is a perspective view, FIG. 9 is a left side view, and FIG. 10 is a plan view. FIG. 11 is a schematic perspective view showing an upper portion of the parent cart 6 on which the child cart 7 is placed, and the upper portion of the child cart 7 is cut away.

  The parent-child cart 1 according to the second embodiment is basically the same as the parent-child cart 1 according to the first embodiment. Therefore, in the following, the description will focus on the differences from the first embodiment, and the description of the points common to the first embodiment will be omitted. Further, portions corresponding to those in the first embodiment will be described with the same reference numerals.

  Similarly to the first embodiment, the parent and child cart 1 of the second embodiment also includes a parent cart 6 and a child cart 7 that can be carried on the cart. Similar to the first embodiment, the main carriage 6 includes a base frame 9 assembled into a substantially rectangular box shape by means of the substantially L-shaped cross sections 8, 8,... Each is provided with a caster 10. At this time, each caster 10 provided on the front left and right sides of the frame 9 cannot turn the yoke 11, but each caster 10 provided on the rear left and right of the frame 9 can turn the yoke 11. Further, each caster 10 provided on the left and right sides of the underframe 9 includes a foot stopper, and the wheels 13 can be fixed as desired.

  The hand push portion 14 of the main carriage 6 is formed by bending a round pipe into a substantially U shape that opens downward, and both open ends are fixed to the left and right rear ends of the upper portion of the base frame 9. Further, in the second embodiment, the drain pan 60 is horizontally provided in the middle part of the base frame 6 of the main carriage 6 in the vertical direction. The drain pan 60 is substantially the same size as the cross-sectional shape of the underframe 9 and has a shallow box shape opened upward. When the child cart 7 is taken out from the saturated steam cooker 2 and placed on the master cart 6, the condensed water of the steam adhering to the child cart 7 may fall downward. Accepted by drain pan 60.

  As shown in FIG. 9, a drain valve 61 is provided below the drain pan 60. Therefore, if desired, the drain valve 61 can be opened to drain the water in the drain pan 60. The drain pan 60 can be attached to and detached from the frame 9 from the rear part of the frame 9. Therefore, if desired, the drain pan 60 can be cleaned by pulling it back from the frame 9 and removing it. In order to easily pull out the drain pan 60 with respect to the frame 9, a handle 62 is provided at the rear portion of the drain pan 60.

  In the first embodiment, the rail dish 16 is provided on the upper portion of the underframe 9 and the child carriage 7 is placed between the first side walls 19 and 19. In the second embodiment, the left and right sides of the upper portion of the underframe 9 are arranged. Rail members 63, 63 are provided at both ends in the front-rear direction, and the left and right wheels 42, 42 of the child carriage 7 travel on the left and right rail members 63, 63, respectively. That is, each rail member 63 is made of a substantially U-shaped cross section, is provided with its groove opened upward, and is guided by the groove so that the wheel 42 of the child carriage 7 can travel in the front-rear direction. .

  A guide plate 64 made of a substantially rectangular plate that is elongated in the front-rear direction is provided horizontally at the center in the left-right direction at the top of the underframe 9. On the upper surface of the guide plate 64, as in the first embodiment, the locking portion 22 composed of the first convex portion 23 and the second convex portion 24 is provided.

  As in the first embodiment, the cam shaft 33 is disposed along the front-rear direction and is rotatably supported at the lower portion of the guide plate 64. The cam shaft 33 has the cam 32 fixed to the front end portion, while the rear end portion is bent vertically to be provided with a handle 35. As shown in FIG. 11, the cam 32 of the second embodiment is formed of a substantially rectangular plate material, and the left and right ends thereof are formed in a substantially semicircular shape for guiding the rotation of the cam 32. Then, the front end portion of the cam shaft 33 is fixed at a position that is eccentric to one side in the vertical direction with respect to the vertical center portion on the left and right other side.

  The handle 35 of the second embodiment can be rotated by 180 degrees in relation to the handle holding piece 36 provided on the rear vertical wall 34. That is, it can be rotated by 180 degrees between the first horizontal state with the tip portion directed to the right side and the second horizontal state with the tip portion directed to the left side. When the handle 35 is in the first horizontal state, the transfer plate 28 is in the unfolded state, and in the second horizontal state of the handle 35, the transfer plate 28 is in the retracted state.

  Similarly to the first embodiment, the transfer plate 28 of the second embodiment is also made of a substantially rectangular plate material. The right and left side edges are bent perpendicularly to the plate surface, and the left and right side walls 29, 29 are formed. Is formed. The base end portions of the left and right side walls 29, 29 of the transfer plate 28 are superimposed on the front end portions of the left and right rail members 63, 63 on the outer ends in the left-right direction, and are respectively connected to the pivots 30, 30 along the left-right direction. And can be swung.

  The child cart 7 according to the second embodiment includes bottom members 37 and 37 that are spaced apart from each other in the front-rear direction and side columns 38 that are vertically erected from the front and rear ends of each bottom member 37. 38 and a top member 65 for connecting the upper ends of the front and rear side columns 38, 38 to each other.

  Each bottom member 37 is formed of a substantially U-shaped cross-section member that opens downward, as in the first embodiment, and axles 41 are provided at both front and rear ends so as to cross the groove. 42 is rotatably held. The wheel 42 can travel along a groove having a substantially U-shaped cross-section that forms the rail member 63 of the parent cart 6.

  The front and rear side columns 38 and 38 and the top member 65 are formed of a shape having a substantially rectangular cross section. Further, substantially U-shaped members 66, 66,... Are fixed between the left and right side columns 38, 38, respectively. In this embodiment, ten approximately U-shaped members 66, 66,... Are provided at a set height, spaced apart at equal intervals. At this time, each substantially U-shaped member 66 is provided horizontally with its groove directed inward in the front-rear direction.

  In this way, a tray, a hotel pan, or the like is detachably held between the substantially U-shaped members 66 facing each other in the front-rear direction. By the way, drop-off prevention bars 67 and 67 are provided on the side pillars 38 and 38 provided on the front left and right sides, respectively, in order to prevent the tray and the hotel pan from dropping off. FIG. 12 is a schematic perspective view showing the dropout prevention bar 67. In this figure, the drop-off prevention bar 67 provided on the front left side column 38 is shown, but the drop-off prevention bar 67 provided on the front right side column 38 has the same configuration.

  Bar holders 68 and 68 are provided on the upper and lower sides of the front left and right side columns 38 on the outer sides in the left and right direction, respectively. The bar holder 68 is a substantially rectangular plate material that is horizontally held, and has a bar insertion hole 69 that penetrates in the vertical direction. However, the bar insertion hole 69, as shown in the drawing, is formed in the plate material constituting the bar holder 68 by opening at one end side thereof, and forming a groove on the side surface of the side column 38. It may be configured to be closed.

  On the upper part of the upper bar holder 68, a bar hanger 70 is provided. The bar hanger 70 is composed of a U-shaped material in cross section, and is fixed to the outer surface of the left and right side columns 38 with the groove directed inward in the left-right direction. A shallow first groove 71 is formed in the upper part of the central piece of the bar hanger 70. Further, a second groove 72 deeper than the first groove 71 is formed in the upper part of the rear end piece of the bar hanger 70.

  The drop-off prevention bar 67 is suspended by the bar suspension 70, and at that time, is also retained by the upper and lower bar holders 68, 68. The drop-off prevention bar 67 has upper and lower ends of a round bar extending in the vertical direction bent vertically, and then bent inward in the vertical direction to form attachment portions 73 and 73. The drop prevention bar 67 has an upper mounting portion 73 inserted into the bar insertion hole 69 of the upper bar holder 68 via the bar hanger 70, while the lower mounting portion 73 is connected to the lower bar. It is provided by being inserted into the bar insertion hole 69 of the holder 68.

  With such a configuration, the drop-off prevention bar 67 is arranged to extend outward in the left-right direction from the side column 38 when the upper end portion is arranged in the first groove 71 as shown by a two-dot chain line in FIG. . Therefore, in that state, trays, hotel breads, and the like can be taken in and out of the substantially U-shaped material 66. On the other hand, as shown by a solid line in FIG. 12, when the upper end portion is disposed in the second groove 72, the dropout prevention bar 67 is disposed so as to extend rearward from the side pillar 38. Therefore, in this state, dropping of the tray, hotel pan, etc. held by the substantially U-shaped material 66 is prevented.

  Also in the second embodiment, a support shaft 49 is provided at the rear portion of the child carriage 7 so as to bridge the left and right bottom members 37, 37. A stopper 21 is provided so as to be swingable. The structure of the stopper 21, the locking of the locking portions 21, 53 of the main carriage 6 and the processing tank 3 and the stopper 21, and the release thereof, the insertion and removal of the child carriage 7 between the processing tank 3 and the main carriage 6, etc. The description is omitted because it is performed in the same manner as in the previous embodiment.

  According to the structure of each said Example, the main trolley | bogie 6 and the processing tank 3 are connected by the swing board 28 which can be rock | fluctuated. Therefore, even if it is a plurality of food machines with different heights of the processing tank 3 or the same food machine but the installed floor is different, the child cart 7 can be easily put in and out of the processing tank 3. it can.

  In addition, the main cart 6 or the processing tank 3 and the sub cart 7 are automatically locked mechanically by the movement of the sub cart 7 by the pendulum stopper 21. Therefore, the slave carriage 7 can be easily and reliably positioned with a simple configuration. Moreover, since the operation unit 50 is disposed at the rear end of the child carriage 7, the stopper 21 can be easily released.

  The parent-child cart 1 of the present invention is not limited to the configuration of each of the embodiments described above, and can be changed as appropriate. For example, although each said Example demonstrated the case where the child trolley | bogie 7 was put in / out of the processing tank 3 of the saturated steam cooking machine 2, the object which puts in / out the child trolley | bogie 7 is not restricted to the saturated steam cooker 2, Other It may be a food machine. Moreover, according to the to-be-conveyed object loaded on the child trolley | bogie 7, it can use similarly not only to a food machine but to a sterilizer etc. Furthermore, the place where the child cart 7 is taken in and out with respect to the parent cart 6 is not limited to the processing tank 3.

  Also in the second embodiment, as in the first embodiment, the locking portions 22 and 53 provided in the main carriage 6 and / or the processing tank 3 are constituted by simple recesses 25 and 56 as shown in FIG. May be. Furthermore, in the said Example, since the stopper piece 26 got over the 1st convex parts 23 and 54, the inclined surfaces 27 and 57 were formed in the 1st convex parts 23 and 54, but it replaces with that and a stopper piece is replaced with it by the case. It is good also as a structure which forms an inclined surface in the side of 26 and gets over the 1st convex parts 23 and 54 by the inclined surface.

  Further, in each of the above embodiments, the first convex portions 23 and 54 may be provided so as to protrude upward by a set amount by a spring, and may be configured to be pushed downward against the urging force. In this case, the stopper piece 26 can pass through the first convex portions 23 and 54 while being pushed downward by the loading of the child cart 7 on the parent cart 6 or the loading of the child cart 7 on the processing tank 3. . After the passage, the first protrusions 23 and 54 protrude upward again to lock the stopper piece 26 by the biasing force of the spring.

  Further, in each of the above embodiments, the stopper 21 has a configuration in which the front end portion (stopper piece 26) is inclined downward by its own weight, but depending on the case, the front end portion of the stopper 21 may be formed using a torsion coil spring or the like. It is good also as a structure which inclines by dropping below by urging | biasing force.

  Furthermore, in each said Example, it was set as the structure which hold | maintains the hotel bread 45 etc. which put the foodstuff 4 in the substantially L-shaped material 44,44 or the substantially U-shaped material 66,66 provided in the sub-cart 7. A container (for example, banju) containing the ingredients 4 may be simply placed or stacked. In that case, it is sufficient for the child cart 7 to simply have a loading platform, and a shelf frame and a shelf may be omitted.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic perspective view which shows the use condition of Example 1 of the parent-child trolley | bogie of this invention, and it has not shown and it abbreviate | omitted and showed the door of the process tank. In Example 1, it is a schematic perspective view which shows the upper part of the main trolley | bogie with which the sub trolley | bogie is mounted and connected with the processing tank, and has shown the upper part of the sub trolley | bore notched. In Example 1, it is a rear view of the child trolley | bogie mounted on the upper part of the parent trolley | bogie. It is a schematic longitudinal cross-sectional view which shows the use condition of the parent-child trolley | bogie of Example 1, and has shown the state which is going to connect a parent-child trolley | bogie to a processing tank. It is a schematic longitudinal cross-sectional view which shows the use condition of the parent-child trolley | bogie of Example 1, and has shown the state which connects a parent trolley | bogie and a processing tank and mounts a child trolley in a processing tank. It is a schematic longitudinal cross-sectional view which shows the use condition of the parent-child trolley | bogie of Example 1, and has shown the state which carried the child trolley completely in the processing tank, and closed the door of the processing tank. It is a schematic longitudinal cross-sectional view which shows the modification of Example 1, and has shown the state which accommodated the child trolley | bogie in the processing tank. It is a schematic perspective view which shows Example 2 of the parent-child cart of this invention. It is a left view of the parent-child trolley | bogie of Example 2. FIG. It is a top view of the parent-child trolley | bogie of Example 2. FIG. In Example 2, it is a schematic perspective view which shows the upper part of the main trolley | bogie with which the sub trolley | bogie was mounted, and has shown notching the upper part of a sub trolley | bogie. It is a schematic perspective view which shows the drop-off prevention bar of the parent-child trolley | bogie of Example 2. FIG.

Explanation of symbols

1 Parent-child cart 3 Treatment tank (delivery destination)
6 Parent cart 7 Child cart 21 Stopper 22 Locking portion 25 Recessed portion 26 Stopper piece (front end of stopper)
27 Inclined surface 28 Transfer plate 30 Axis 32 Cam 35 Handle 49 Support shaft 53 Locking portion 56 Recessed portion 57 Inclined surface 58 Protruding portion 59

Claims (5)

A parent truck that is bridged or matched with the destination,
A child carriage that has a stopper that is moved between the main carriage and the carry-in destination, and that is stopped by the latching portion of the main carriage as the carry-in destination is loaded onto the main carriage. A parent-child cart characterized by comprising. The parent-child trolley according to claim 1, wherein the child cart is locked to the locking portion of the carry-in destination by the stopper as the main cart is loaded onto the carry-in destination. The stopper is a member extending in the front-rear direction in which the child carriage travels, and is provided at the rear end portion of the child carriage so as to be swingable about an axis extending in the left-right direction. Is tilted downward and
Along with the loading of the child carriage, the front end portion of the stopper rides on the inclined surface provided on it or the inclined surface provided on the locking portion and fits into the concave portion provided on the locking portion, or The parent-child trolley according to claim 1 or 2, wherein a front end portion of the stopper fits into a concave portion constituting the locking portion. At the front end of the main carriage, a transfer plate for bridging between the destination is provided so as to be rotatable around a pivot along the left-right direction,
The front end portion of the transfer plate can be moved up and down around the pivot axis by rotating a cam by operating a handle provided at a rear end portion of the main carriage. The parent-child cart as described in any one of items. 5. The parent-child cart according to claim 4, wherein the transfer plate is engaged with the carry-in destination when the front end is lowered forward around the pivot axis and is bridged to the carry-in destination. .

Images