JP4432109B2 - Safe delivery system for transport vehicles - Google Patents

Description

  The present invention relates to a safety carry-out system for a transport vehicle having a foldable wheel portion.

  When sterilizing items to be sterilized, such as medical instruments, surgical clothing, and patient clothing, in a medical institution, the items to be sterilized are loaded on a transport vehicle, and the items to be sterilized are stored in the sterilization tank of the sterilizer. Sterilization is performed. Here, since the sterilization tank has a floor having a certain height, the floor surface of the sterilization tank is higher than the floor surface of the room in which the sterilization apparatus is installed. For this reason, when the transporter is taken in and out of the sterilization tank, the step must be overcome, and the work becomes difficult. In particular, in the sterilization of medical devices, since many devices are loaded on a transport vehicle, the total weight is as high as 150 kg, and it is difficult for one medical worker to exceed the step by human power. Therefore, it is conceivable to dig down the floor surface of the part where the sterilizer is installed, or to provide a slope to alleviate the level difference, but it is difficult to implement because the floor of the building must be constructed.

  A technique for solving the above-described problem is described in Japanese Utility Model Publication No. 55-5402 (Patent Document 1). In the transport vehicle storage device described in the publication, the wheel portion of the transport vehicle has a foldable structure, and a plurality of support rollers are horizontally arranged on the left and right walls in the sterilization tank, so that the sterilization tank of the transport vehicle At the time of carrying in, the carrier is supported by the support roller, and the wheel is folded to accommodate the carrier. This support roller is provided at a position that supports the transport vehicle at almost the same height as when it is running on wheels, and almost moves the center of gravity when the transport vehicle enters the sterilization tank from the outside. You can work easily. Further, when the transport vehicle is unloaded from the sterilization tank, the vehicle is shifted from a state where the wheel portion is folded while the transport vehicle is supported by the support roller to a state where the transport vehicle can be supported while supporting the weight of the transport vehicle. When it is confirmed that the wheel portion has completely shifted to the running state, the transporter is further pulled out to ground the wheel. When all the wheels are grounded in this way, the unloading operation is completed and the transport vehicle is transported to the target location.

  The technology related to the transport vehicle accommodation device described in Patent Document 1 is useful when the wheel portion reliably shifts from the folded state to the travel state when the transport vehicle is unloaded from the sterilization tank of the transport vehicle. However, if for some reason the wheel portion is not completely shifted and the wheel is heavy, the entire transport vehicle may be tilted, which may cause a safety problem.

  In order to solve this problem, as shown in Japanese Patent Laid-Open No. 2003-2208 (Patent Document 2), the applicant provides a support means for preventing the cart from tilting when the cart is unloaded. Proposing technology.

Japanese Utility Model Publication No. 55-5402 Japanese Patent Laid-Open No. 2003-2208

  The technology described in Patent Document 2 improves the safety when the transport vehicle is carried out. However, when the vehicle is taken out without being shifted to the traveling state, it may still be a safety problem. is there.

This invention is an improved invention of Patent Document 2, and can reliably confirm the transition of the wheel section to the traveling state when the transport vehicle is unloaded, thereby further improving the safety when the transport vehicle is unloaded. It is an object.

The present invention has been made to solve the above-mentioned problems, and the invention according to claim 1 is such that the wheel part is folded when being carried into the storage tank, and the wheel part is unfolded when being carried out. A transport vehicle having a foldable wheel portion that returns to a traveling state and a first engagement member, and a support device having a second engagement member provided outside a storage tank, wherein the support device is the transport vehicle. with the time of unloading supporting the cart, and the movement preventing means for the second engaging member is stopped by blocking the movement of the unloading direction of the truck engages the first engagement member in the support state And release means for releasing the movement blocking by the movement blocking means.

The present invention as described in claim 2, wherein the movement preventing means in claim 1 prevents the movement of the unloading direction of the truck and engaged with the first engagement member provided on said truck wherein the second engagement member, the canceling means for canceling the movement preventing by lowering the second engagement member provided on the supporting device at a height that does not engage the first engagement member provided on said truck It is characterized by having prepared.

  According to the present invention, when the transport vehicle is unloaded from the opening, the transport vehicle is supported by the recording support device, and at that time, the transport vehicle moves in the unloading direction by the movement blocking means. Is prevented and the transport vehicle is stopped, so that in this stop state, it can be confirmed that the wheel portion of the transport vehicle is in a traveling state. As a result, the transport vehicle can be safely taken out.

  Next, an embodiment of the present invention will be described. The embodiment of the present invention is applied to a transporting safety system system for a transporting vehicle including a transporting vehicle that can fold a wheel part and a sterilizing device having a sterilization tank that accommodates the transporting vehicle. And it is applicable to the apparatus which accommodates not only a sterilizer but the similar conveyance vehicle in a storage tank, for example, what was loaded, such as a freezer and a storage, in the storage tank with the said transport vehicle.

  This embodiment has a transport vehicle having a collapsible wheel portion, an opening for carrying in and out of the transport vehicle, and a storage tank for storing the transport vehicle by folding the wheel portion. An accommodation device and a support device for supporting the transport vehicle at the time of unloading are provided, and the support device includes a movement blocking means for blocking movement of the transport vehicle in the unloading direction.

  In this embodiment, the wheel portion of the transport vehicle is foldable, and when the vehicle is loaded into the storage tank, the wheel portion is folded, and when the transport vehicle is unloaded from the storage tank, The folding of the wheel part is released, and the transport vehicle returns to the traveling state. At the time of carrying out the transport vehicle, the transport vehicle is supported by the support device, but at that time, the movement preventing means prevents the movement in the carry-out direction and stops. With the support and stop functions of the support device, it is possible to reliably confirm the return of the wheel unit to the running state. Here, “support” means that the load of the transport vehicle is supported, and the transport vehicle does not tilt even if the operator of the transport vehicle releases the hand. The movement preventing means can be referred to as stop means in the sense of temporarily stopping the transport vehicle.

  The said transport vehicle is a vehicle which mounts and conveys the articles to be stored in the storage tank, and has a pair of foldable front wheel portions and a pair of rear wheel portions. The transport vehicle can have the same configuration as that described in Patent Document 2. The article is to be sterilized when the container is a sterilizer.

The storage tank of the storage device includes an opening through which the transport vehicle can be loaded and unloaded with the wheel portion folded. The opening is provided with a sealable door. In the open state of the door, the transport vehicle can be carried into and out of the storage tank.

  The support device is outside the storage tank, and when the transport vehicle is unloaded from the opening, a rear portion of the transport vehicle is positioned in the storage tank, and a front portion of the transport vehicle is In the state located outside a storage tank, it is provided in the position which can support the said front part. The support device has a function of supporting the transport vehicle and a movement blocking function of blocking movement of the transport vehicle in the carry-out direction in this support state. The front part means a front part in the carry-out direction of the transport vehicle, and the rear part means a rear part in the carry-out direction of the transport car. The support device is configured to support the left and right end sides of the front portion of the transport vehicle, and does not have a stop function, but only a support function (second example shown in Patent Document 2). The left and right other ends of the front part are supported by a support roller).

  Specifically, the support device engages with a support member as a support means for supporting the transport vehicle at the time of unloading, and a first engagement member provided in the transport vehicle in a support state by the support member. It can be provided with a second engagement member as a movement blocking means for blocking and stopping the movement of the transport vehicle in the unloading direction. Here, the engagement can be rephrased as contact.

  Furthermore, the support device preferably includes release means capable of releasing the movement prevention. This release means can release the movement blocking state without lifting the transport vehicle. More specifically, the release means is configured to release the engagement between the first engagement member and the second engagement member. In this configuration, it is preferable to disengage the second engagement member by moving the second engagement member from the engagement position to the engagement release position.

  By providing such release means, after confirming that the wheel portion has returned to the traveling state, the movement prevention can be released by the release means, and the transport vehicle can be pulled out of the storage tank.

  Hereinafter, a specific embodiment 1 of the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic configuration diagram of a partial vertical cross-section of the first embodiment, and FIG. 2 is an explanatory diagram of a partial cross-section when a part of the transport vehicle in the traveling state of the first embodiment is viewed from the side. FIG. 3 is an explanatory view of a partial cross section of a part of the transport vehicle as viewed from the bottom surface, and FIG. 4 is an explanatory view of a partial cross section of the transport vehicle as viewed from the side with the wheel portion in a folded state. FIG. 5 is an explanatory view of a partial cross section showing the transport vehicle in a state where the wheel portion is fixed as a running state, and FIG. 6 is an explanatory view of the support device of the first embodiment as viewed from above. FIG. 7 is an explanatory view of the support device as viewed from the front, FIG. 8 is an explanatory view of the support device as viewed from the side, and FIG. It is explanatory drawing which looked at the support apparatus from the plane.

  The first embodiment is applied to a carry-out safety system for a transport vehicle for a sterilizer. As shown in FIG. 1, this unloading safety system includes a transport vehicle 3 having foldable first wheel portions 1, 1 and second wheel portions 2, 2, and an opening for loading and unloading the transport vehicle 3. , A sterilization apparatus 6 having a sterilization tank 5 as a storage tank for storing the transport vehicle 3 by folding both the wheel portions 1 and 2, and provided outside the sterilization tank 5, the transport vehicle 3 is provided as a main part with a support device 7 that supports 3 when unloading and prevents the transport vehicle 3 from moving in the unloading direction in this supported state.

The unloading safety system ensures that the two wheel portions 1 and 2 are returned to the traveling state by stopping the transporting vehicle 3 while being supported by the support device 7 when the transporting vehicle 3 is unloaded. And the both wheel portions 1 and 2 can be fixed. Further, as will be described in detail later, the support device 7 includes a support unit that supports the transport vehicle 3 when unloading, and a movement blocking unit that blocks movement of the transport vehicle 3 in the unloading direction in a support state by the support unit. And release means for releasing the movement blocking by the movement blocking means.

  The support device 7 is provided so as to support the left and right end sides of the front portion of the transport vehicle 3, does not have a movement blocking function, and has a support function similar to the second support roller 34 described later. The support device (not shown) (corresponding to the second support roller described in Patent Document 2) is configured to support the left and right other ends of the front portion of the transport vehicle 3. In the following description, the second support device simply supports the transport vehicle 3, and thus description of the operation is omitted.

  First, each main part of this unloading safety system will be described. Referring to FIGS. 1 and 2, the transport vehicle 3 functions as a cart for loading and transporting medical instruments, surgical clothes, patient clothes, and the like, and is a frame (transport vehicle formed by combining a plurality of rod-shaped members. The main body 9 and the first wheel portions 1 and 1 and the second wheel portions 2 and 2 are provided on the bottom surface of the frame 9 so as to be convenient for movement.

The basic configuration of the transport vehicle 3 is the same as that of the transport vehicle disclosed in Patent Document 2. The difference is that a front first engagement member 10 and a rear first engagement member 11 for stopping the transport vehicle 3 are provided. The front first engagement member 10 is provided on the left end of the bottom portion of the frame 9 when the transport vehicle 3 is viewed from the front, and at a rear position spaced from the first wheel portions 1 and 1 by a predetermined distance. . The rear first engagement member 11 is attached to a left end portion of the bottom portion of the frame 9 when viewed from the front of the transport vehicle 3 and at a rear position spaced apart from the second wheel portions 2 and 2 by a predetermined distance. . The first engagement member 10, 11 by engaging the second engagement member 12, wherein a movement preventing means of the support device 7, and prevents movement of the in the ejection direction of the truck 3, Pause. The first engagement members 10 and 11 are plate-like members and are fixed to the frame 9 by attachment members 13 and 13, respectively.

  Next, the first wheel portions 1 and 1 and the second wheel portions 2 and 2 will be described. The first wheel portions 1, 1 are provided on the front side in the carry-out direction of the transport vehicle 3, and the second wheel portions 2, 2 are provided on the rear side in the carry-out direction, each consisting of a pair of wheel portions. Since the first wheel portions 1 and 1 and the second wheel portions 2 and 2 have the same configuration, the first wheel portions 1 and 1 will be described.

  As shown in FIGS. 2 to 5, each wheel portion 1 of the first wheel portions 1, 1 has a movable portion 15 having a wheel 14 rotatably attached to the tip. This movable part 15 is attached to the said frame 9 so that rotation, ie, folding, is possible. Specifically, the fixing members 17 are fixed to the substrate members 16 and 16 attached to the front and rear portions of the frame 9, respectively, and the movable portion 15 is attached to the first support shaft 18 provided on each fixing member 17. Is mounted for rotation.

  A locking claw member 19 is rotatably attached to the second support shaft 20 in the movable portion 15. The locking claw member 19 is provided with a first groove portion 20 and a second groove portion 21. On the other hand, the fixing member 17 is provided with an engaging pin 23 that can be engaged with both the groove portions 20 and 21. As shown in FIG. 2, the first groove portion 20 engages with the engagement pin 23 in the traveling state of the first wheel portions 1, 1. Therefore, even if it is attempted to rotate the movable portion 15 clockwise with respect to the first support shaft 20 in this state, the locking claw member 19 prevents the rotation and does not shift to the folded state. Further, the stopper 15 (not shown) is configured so that the movable portion 15 cannot rotate further counterclockwise than the state of FIG.

As shown in FIG. 3, the locking claw members 19 of the first wheel portions 1, 1 are connected to each other by a bar-like connecting member 24. A triangular rocking plate 25 is provided at the center of the connecting member 24, and a roller 26 is provided below the rocking plate 25. The roller 26 is lifted in contact with the abutting piece 27 provided on the floor 28 of the sterilization tank 5 shown in FIG. 1 when the transport vehicle 3 is carried into the sterilization tank 5. As a result, the connecting member 24 is lifted, the locking claw members 19 are further lifted, and the engaging pin 23 is released from the first groove 21. Further, when the transport vehicle 3 is advanced in the loading direction (rightward in FIG. 1), the movable portion 15 rotates clockwise while hitting the floor 28 of the sterilization tank 5 and shifts to the folded state shown in FIG. .

  The movable portion 15 is urged counterclockwise by an urging means (not shown). When each of the first wheel parts 1 comes out of the sterilization tank 5 when the transport vehicle 3 is unloaded from the sterilization tank 5, the movable part 15 is counteracted by the urging force of the urging means from the folded state of FIG. It rotates clockwise and shifts to the running state shown in FIG. At this time, the first groove portion 21 engages with the engagement pin 23, and the first groove portion 21 is configured so that it cannot be changed to a folded state unless this engagement is released.

  Further, the second groove portion 22 is configured such that the engagement pin 23 can be engaged therewith. As a result, even if the first wheel portions 1 cannot be fixed in the running state for some reason, the engagement pin 23 engages with the second groove portion 22 so that the intermediate state before the transition to the folded state is reached. Stays in the same state. At this time, the transport vehicle 3 is slightly tilted but never falls.

  Further, as shown in FIG. 5, the fixed member 17 and the movable part 15 are respectively formed with a first hole 29 and a second hole 30. When the wheel parts 1 are in the running state, The positions of the holes 29 and 30 are configured to match. When the transport vehicle 3 is temporarily stopped by the support device 7, it is confirmed that each wheel portion 1 has shifted to the running state, and the lock pin 31 shown in FIG. Install through. Thereby, the said movable part 15 can be fixed completely and safety | security can be improved further.

  Next, the sterilization tank 5 will be described. Referring to FIG. 1, the sterilization tank 5 is a tank for sterilizing an object to be sterilized with steam or the like, and is formed in a box shape. The opening 4 of the sterilization tank 5 is provided with an openable / closable door (not shown). The door may be a shutter type so that the support device 7 does not interfere with opening and closing. Further, since the sterilization tank 5 has a certain thickness, the floor 28 of the sterilization tank 5 is higher than the floor 32 of the room where the sterilizer 1 is installed. A plurality of first support rollers 33, 33,... Are horizontally arranged on the left and right wall surfaces in the sterilization tank 5 as support means for supporting the transport vehicle 2 at intervals in the loading / unloading direction. ing. Each said 1st support roller 33 supports the bottom part of the flame | frame 9 of the said transport vehicle 3 so that the said transport vehicle 3 can be moved to a carrying-out direction and a carrying-in direction.

  Furthermore, the said support apparatus 7 is demonstrated based on FIG. 1, FIG. 6 ~ FIG. 6 is an explanatory view of the support device 7 as viewed from above, FIG. 7 is an explanatory view as viewed from the A direction in FIG. 6, and FIG. 8 is an explanatory view as viewed from the B direction in FIG. The support device 7 is provided outside the sterilization tank 5 and near the opening 4, and includes a second support roller 34 for supporting the frame 9 as support means of the transport vehicle 3. Yes. The second support roller 34 is rotatably attached to a first shaft 36 provided on the gantry 35 and is provided so as to have the same height as the first support rollers 33.

Further, as described above, the support device 7 is in contact with the first engaging members 10 and 11 provided on the transport vehicle 3 so as to prevent the transport vehicle 3 from moving in the unloading direction and stop. The second engaging member 12 is provided. The second engagement members 12 are respectively connected to the first engagement members 10 and 11 after the first wheel portion 1 and the second wheel portion 2 are respectively shifted from the folded state to the traveling state and before being grounded. By engaging with, the transport vehicle 3 functions so as to be pulled out further, that is, to stop temporarily without being able to advance in the left direction in FIG.

As shown in FIG. 6, the second engagement member 12 has a first end surface 37 on the sterilization tank 5 side as a vertical surface so as to be easily engaged with the side surfaces of the first engagement members 10 and 11, and the opposite second end face 38 is not engaged with the first engagement members 10 and 11 shape of the end face 37. A shape that does not engage with the first engagement member 10 and 11, the tapered portion 39 is provided on the upper 6 and 7 in this embodiment. However, the or rounded upper corners of the second end surface 38, it can be shaped as ski tip downwards.

Next, the configuration of the release means of the support device 7 will be described. The second engagement member 12 is attached in the vicinity of the tip of an arm 41 that is rotatably supported around a second shaft 40 provided on the mount 35. Then, the second engagement member 12, the position of engagement with the first engagement members 10 and 11, in a position not engaging with the first engagement members 10 and 11, the second engagement member It can be switched by a stepping lever 42 as the moving means. The lever 42 is formed by bending a round bar. The lever 42 is provided on the distal end side of the arm 41 with respect to the second engagement member 12, and the lever 42 is pushed down to move the second engagement member 12 to the first engagement member 10, and it is configured so that it can be lowered to a height that does not 11 and engagement.

  And as shown in FIG. 1, the said 2nd engagement member 12 is comprised so that it may become the height which always engages with said 1st engagement members 10 and 11. As shown in FIG. That is, the arm 41 is urged by the first urging means 43 made of a spring body, and comes into contact with the height adjusting member 44 and stops. In this stopped state, the second engagement member 12 is normally held at a position (height) that can be engaged with the first engagement member 11.12.

  Further, this configuration will be described in detail with reference to FIG. The first urging means 43 is configured to pull a first locking member 45 provided on the side of the arm 41 opposite to the lever 42 in the direction of the floor 32 of the room. The second locking member 46 provided on the arm 41 and the first locking member 45 provided on the arm 41 are locked. Thus, the first biasing means 43 biases the arm 41 clockwise around the second shaft 40. The arm 41 is regulated to a predetermined height by the height adjusting member 44.

  By providing the release means having such a function, the operator can engage the second engagement member 12 with the first engagement members 10 and 11 and the transport vehicle 3 is temporarily stopped. It is confirmed that each first wheel portion 1 is definitely in a running state. After this confirmation, the lever 42 is stepped on, the second engagement member 12 is switched to a height that does not engage with the first engagement members 10, 11, the first wheel portions 1 are grounded, and the transportation is performed. The car 3 can be moved further to the left.

  Next, in this embodiment, when the transport vehicle 3 engages with the second engagement member 12 and temporarily stops, the transport vehicle 3 is returned to the sterilization tank 5 side to some extent by reaction. ing. This configuration will be described. As shown in FIGS. 6 and 7, the second engagement member 12 is fixed around the third shaft 49 in the horizontal plane by the first support bracket 47, the second support bracket 48, and the third shaft 49. The arm 41 is attached so as to be rotatable within a range of angles. As shown in FIG. 8, the second engagement member 12 passes counterclockwise in FIG. 6 in a state of passing through the rectangular cutout hole 50 of the arm 41, that is, the second engagement member 12. Is biased by the second biasing means 52 in the direction toward the second shaft 40 side.

  One end of the second urging means 52 is locked to a third locking member 54 provided on the second engagement member 12, and the other end is provided to a nut 55 for fixing the second shaft 40. Locked to the fourth locking member 56. As a result, the second engagement member 12 is urged counterclockwise within the cutout hole 50. That is, the second urging means 52 causes the second engagement member 12 to move the tip 51 within a range in which the second engagement member 12 can rotate within the notch hole 50, that is, a distance indicated by a solid line arrow (so-called stroke) shown in FIG. It is configured to be movable.

  With such a configuration, the second engagement member 12 stops the transport vehicle 3 from moving in the left direction (unloading direction) at the position shown in FIG. Return to the right (loading direction) to some extent by rebounding by the spring force. Along with this returning operation, the second engagement member 12 is also rotated by the second biasing means 52 while keeping the state in contact with the first engagement members 10 and 11. The second engagement member 12 continues to contact the first engagement members 10 and 11 even when the transport vehicle 3 finishes moving in the right direction by return (bounce) and stops completely. The transport vehicle 3 is configured to maintain a stopped state.

  Here, the operation of this embodiment will be described. The carrying out of the transport vehicle 3 will be described. The door of the sterilization tank 5 is opened, and the accommodated transport vehicle 3 is pulled out from the opening 4 to the near side (left direction in FIG. 1). Each said 1st wheel part 1 contact | abuts with the said abutting member 27, and it transfers to a driving | running | working state from a folding state as mentioned above. When the transport vehicle 3 is further moved leftward from the state where the first engagement member 10 and the second engagement member 12 are not in contact with each other as shown in FIG. 10 abuts on the second engagement member 12, and as shown in FIG. 1, the transport vehicle 3 is stopped from moving in the carry-out direction. In this state, each said 1st wheel part 1 has already come out of the said sterilization tank 5, and has changed to the driving | running | working state from the folded state, but has not touched the floor surface 32 of the room yet. The rear half of the transport vehicle 3 remains in the sterilization tank 5, and the rear portion of the frame 9 is held by the first support rollers 33, and the second wheel portion 2, 2 is in a folded state.

  In the temporarily stopped state of the transport vehicle 3, the operator confirms that the first wheel portions 1 and 1 are in the traveling state shown in FIG. Do. Thereby, the transition to the traveling state of the first wheel portions 1 and 1 can be ensured.

  After confirming the transition to the running state, the operator pushes down the lever 42 toward the floor 32 of the room. As a result, the second engagement member 12 moves down and slides under the first engagement member 10 and moves to a height at which the second engagement member 12 does not engage with the first engagement member 10. As a result, the stop by the support device 7 is released, and the transport vehicle 3 can further proceed to the left.

  In this movement blocking release operation, once the lever 42 is pushed down, the second engagement member 12 is urged by the second urging means 52 and lowered along the lower surface of the first engagement member 10. And slide under the first engaging member 10. Therefore, it is not necessary to continue stepping on the lever 42, and the worker can perform the work of releasing the foot from the lever 42 and moving the transport vehicle 3 to the left.

    When the transport vehicle 3 is further moved leftward from the state shown in FIG. 1, the second wheel portions 2 and 2 are in a traveling state, and the first engagement member 11 is the second engagement member. 12 hits. Here, the same operation as the temporary stop operation by the first engagement member 10 and the second engagement member 12, the release operation by the lever 42, and the movement operation of the transport vehicle by the operator is repeated. Thus, the transport vehicle 3 is completely removed from the sterilization tank 5.

  Next, when the transport vehicle 3 is accommodated in the sterilization tank 5, the first engagement members 10 and 11 come into contact with the second engagement member 12 from the second end face 38 side. Since the taper portion 39 is provided on the second end surface 38, the first engagement members 10 and 11 run on the second engagement member 12 along the taper surface without being engaged. . That is, although the second engagement member 12 is urged by the first urging means 43, it can be pushed down. Therefore, the second engagement member 12 is pushed against the first engagement members 10, 11 as shown in FIG. Then, it enters under these first engaging members 10 and 11. In this way, the first engagement members 10 and 11 pass over the second engagement member 12. Therefore, when the transport vehicle 3 is carried into the sterilization tank 5, the support device 7 does not hinder the travel of the transport vehicle 3, and the operator passes the transport vehicle 3 as it is without stepping on the bar 42. be able to.

  The present invention is not limited to the above-described embodiment, but includes Embodiment 2 shown in FIG. In this embodiment, the second urging means 52 is omitted as a fixed second engaging member 57 in which the second engaging member 12 is fixed to the arm 41. In the second embodiment, when the transport vehicle 3 is carried out, the fixed second engagement member 57 is moved to the lower side of the stop members 11 and 12 while the lever 42 is kept pressed down. However, since the transport vehicle 3 can be confirmed and stopped once by the fixed second engagement member 57, it is the same as the first embodiment in that the safety can be improved. According to the second embodiment, by omitting the second urging means 52, there is an advantage that the configuration can be simplified.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. It is explanatory drawing of the partial cross section which looked at a part of the said transport vehicle of the traveling state of the Example 1 from the side surface. It is explanatory drawing of the partial cross section which looked at a part of the said transport vehicle from the bottom face. It is explanatory drawing of the partial cross section which looked at the said transport vehicle which made the said wheel part the folding state from the side surface. It is sectional drawing of the partial cross section which shows the said transport vehicle of the state which fixed the said wheel part. It is explanatory drawing which looked at the support apparatus of the Example 1 from the plane. It is explanatory drawing which looked at the said support apparatus from the front. It is explanatory drawing which looked at the said support apparatus from the side surface. It is explanatory drawing which looked at the said support apparatus at the time of carrying in of the said transport vehicle from the plane. It is explanatory drawing which looked at the support apparatus of Example 2 of this invention from the plane.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 1st wheel part 2 2nd wheel part 3 Transport vehicle 4 Opening part 5 Sterilization tank (containment tank)
6 Sterilizer (container)
7 support device 10 first engagement member 11 first engagement member 12 second engagement member (movement blocking means)

Claims (2)

When carrying into the storage tank, the wheel part is folded, and when carrying out, the folding of the wheel part is released and the carriage returns to the running state and the transport vehicle having the first engagement member, and the storage tank A support device having a second engagement member provided on the outside,
The support device is configured to support the transport vehicle at the time of unloading of the truck, blocking the movement in the unloading direction of the cart in this supported state is the second engagement member engages the first engagement member A transporting safety system for a transport vehicle, comprising: a movement preventing means for stopping the movement and a releasing means for releasing the movement blocking by the movement blocking means. It said movement preventing means includes the second engagement member for preventing movement of the unloading direction of the truck and engaged with the first engagement member provided on the truck, provided on the supporting device truck according to claim 1, further comprising a canceling means for canceling the movement preventing by lowering the height without first engagement member and the engagement having a second engagement member to the truck Unloading safety system.

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