JP5608550B2 - Aerial work platform - Google Patents

Description

  The present invention relates to an aerial work vehicle that can secure a worker's safety by a protective wall that spans a platform from a container to a target position and is pulled out from the left and right doors of the container.

  As a conventional aerial work vehicle, the applicant of the present invention has already, for example, in the width direction of the door to the left and right doors of the container that can be raised and lowered with respect to the chassis for the purpose of carrying food and luggage into and out of the aircraft. Some have been provided with a plurality of protective walls that can be pulled forward along. This protective wall further includes a plurality of sub-protective walls (mini-panels) that can be pulled out and stored outside the outermost protective wall, and these secondary protective walls closed the door in a state of being stored outside the door. Sometimes, it can be configured as a part of a door (see, for example, “Patent Document 1”).

JP 2006-137576 A

  However, since the conventional secondary protection wall slides along the lateral width of the door, only the secondary protection wall cannot be opened and closed with respect to the outermost protection wall. In addition, since the conventional secondary protective wall is arranged further outside the outermost protective wall arranged outside the door, if the space outside the outermost protective wall cannot be used due to operational restrictions, etc. A protective wall cannot be provided.

  The object of the present invention is that when not in use, the door can be opened and closed without being stored outside the door of the container, and when the door is opened and used, the main protective wall disposed outside the door It is to provide a new aerial work vehicle equipped with a secondary protection wall that can be opened and closed to the left and right.

The aerial work platform of the present invention includes a container that can be raised and lowered with respect to the chassis or the carriage, and two doors that form an opening that opens to the left and right from the container and communicates with the interior of the container,
At least one main protection that can be pulled out and stored along the width direction of the door on the outside of the door, and when the door is closed in the storage state, the door tip becomes a calling portion together with the door An aerial work vehicle with walls,
An auxiliary protective wall is placed inside the outermost main protective wall on the outermost side with a door in between, and the auxiliary protective wall is connected to the door of the outermost main protective wall via a hinge so that it can be opened and closed. It is characterized by.

  In the present invention, the hinge is preferably a one-sleeve hinge in which the hinge part is connected to the outermost main protective wall side and the one sleeve side part is connected to the suspending side of the sub-protective wall. In this case, a concave portion for accommodating the one-sleeve side portion of the one-sleeve hinge can be provided in the summing portion of the door and the door tip of the protective wall.

Further, the hinge when a piece sleeve hinge, the two left and right of the piece sleeve hinge, the sleeved portion of the at least one of said pieces sleeve hinge, when closed the door with sub protective wall, the other A seal member for sealing a gap between the long sleeve side portion of the one- sleeve hinge can be provided. Further, a seal member is provided on the back side of the long sleeve side portion of the one- sleeve hinge or the summing portion of the door to seal a gap with the summing portion of the door when the door is closed together with the auxiliary protective wall. Can do. Moreover, the guide which forms the clearance gap for accommodating the sub-protection wall piled up inside the door between the said inner surfaces can be provided in the inner surface of a door.

  In addition, in the present invention, the opening angle between the outermost main protective wall and the auxiliary protective wall is provided by providing a through hole in the auxiliary protective wall and inserting the tip of the pin member into each through hole of the auxiliary protective wall as appropriate. Can be configured to be fixed.

  In the present invention, a sub-protective wall is arranged inside the outermost main protective wall stored outside the door of the container with the door interposed therebetween, and the sub-protective wall is placed on the door end of the outermost main protective wall. When the auxiliary protective wall is opened and closed with respect to the outermost main protective wall, it can be prevented from interfering with the summoned portion of the door.

  For this reason, if the sub-protection wall is closed inward with the hinge as a base point, the sub-protection wall can be accommodated inside the door so that the sub-protection wall sandwiches the door between the outermost main protection wall. Further, the main protective wall can be pulled out from the outside of the door without opening and closing the auxiliary protective wall even after the door is opened. Further, the secondary protective wall can be opened and closed by a hinge after the main protective wall is pulled out from the outside of the door or without pulling out the main protective wall.

  Therefore, according to the present invention, when not in use, the door can be opened and closed without being stored outside the container door, and when the door is opened and used, the main protective wall disposed outside the door can be opened. In contrast, it is possible to provide a new aerial work platform equipped with a secondary protection wall that can be opened and closed to the left and right.

It is a food service truck which is one form of an aerial work vehicle of the present invention, and is a side view showing a state in which a container is raised and lowered. It is a principal part perspective view which shows the said opening / closing door typically from the container inside in the state which closed the opening / closing door of the container based on the form. It is principal part sectional drawing which shows the said opening / closing door typically with a part of container in the state which closed the opening / closing door of the container based on the form. It is principal part sectional drawing which shows the AA cross section of FIG. It is principal part sectional drawing which shows the BB cross section of FIG. It is a principal part perspective view which shows the state which opened the opening-and-closing door of the container based on the form typically from the container inside. It is a principal part perspective view which shows typically the state which pulled out the main protective wall from the container opening-and-closing door and opened the sub-protective wall based on the form from the container inside. It is a principal part side view which shows typically the state which pulled out the main protection wall from one opening-and-closing door of the container based on the form, and opened the sub-protection wall with the platform. FIG. 7 is a front view schematically showing a part of the protective wall structure in which the protective wall and the secondary protective wall are housed in FIG. FIG. It is a principal part perspective view which shows typically the protection wall structure of FIG. 9 centering on a long sleeve hinge part. It is a principal part perspective view which shows typically the state closed as an opening-and-closing door in the state of FIG. 9 from the container outer side. It is a principal part perspective view which shows typically the state opened as an opening-and-closing door in the state of FIG. 9 from the container outer side. It is a principal part perspective view which shows typically the state which pulled out the main protection wall from the state of FIG. 12 from the container outer side. It is a principal part perspective view which shows typically the state which opened the sub-protection wall from the state of FIG. 13 from the inside of a platform. It is a principal part perspective view which shows typically the state which pulled out the main protection wall from the other opening-and-closing door of the container based on the form, and opened the sub-protection wall from the inside of a platform. It is a front view which shows typically the protection wall structure of the state in which the main protection wall of FIG. 15 and the sub-protection wall were accommodated in the partial cross section from the summing part (door tip of the main protection wall) of an opening / closing door. It is a principal part perspective view which shows the sub-protection wall of FIG. 16 typically centering on a long sleeve hinge part. It is a principal part perspective view which shows typically the state which opened the sub-protection wall from the state of FIG. 17 from the inside of a platform. It is a principal part top view which shows typically the positioning structure of the sub-protection wall of FIG. It is a principal part top view which shows typically an example of the form of the protective wall structure based on the form with a platform. It is a principal part top view which shows typically the other example of the form of the protective wall structure based on the form with a platform. It is a principal part top view which shows still another example of the form of the protective wall structure based on the form typically with a platform.

  Hereinafter, with reference to drawings, the food service truck which is one form of the present invention is explained in detail.

  In FIG. 1, the code | symbol 1 is a self-propelled chassis which has the cab 1a ahead. Reference numeral 2 denotes a link mechanism arranged on both sides of the vehicle with an interval. In the link mechanism 2, the lower end of one link arm 2a is pivotally supported by a chassis frame 1b provided on the chassis 1, while the lower end of the other link arm 2b slides on the chassis frame 1b.

  Reference numeral 3 denotes a cargo bed frame 3. While the upper end part of the link arm 2a is slidably supported by the loading frame 3, the upper end part of the link arm 2b is pivotally supported. Thereby, the link mechanism 2 functions like a pantograph, and the loading frame 3 can freely move up and down in the direction indicated by the arrow Y in FIG. 1 by controlling the actuators 4 a and 4 b with respect to the chassis 1. Can do.

  Reference numeral 5 denotes a container supported by the cargo bed frame 3. The container 5 can freely move up and down following the control of the actuators 4 a and 4 b with respect to the chassis 1. In addition, the container 5 can be freely slid in the direction indicated by the arrow X in FIG. 1 by an actuator (not shown). Thereby, it is possible to freely approach a target position such as a boarding gate of an aircraft.

  Reference numeral 6 denotes a platform for an operator to carry out or carry in luggage such as food. The platform 6 includes a connecting platform 6 a that moves up and down along the container 5 as the container 5 moves up and down. The connection platform 6a has a holding plate 6b. The holding board 6b holds the main platform 6c.

  The main platform 6c can be slid left and right on the holding plate 6b by an actuator (not shown) as shown in FIGS. The main platform 6c includes sub platforms 6d and 6e. Each of the sub platforms 6d and 6e can also be slid back and forth from the main platform 6c by an actuator (not shown), for example, as shown in FIGS.

  Reference numerals 7 and 8 are open / close doors for closing the inside of the container 5 as shown in FIG. Each of the open / close doors 7 and 8 is attached to the container 5 via an arm hinge H as shown in FIG. As a result, each of the open / close doors 7 and 8 forms an opening that opens from the container 5 to the left and right and communicates with the inside of the container 5 as shown in FIG. In addition, the code | symbol W is the window formed in each of the opening-and-closing doors 7 and 8. FIG. The window W disposed on the upper side of the open / close doors 7 and 8 is mainly used during container work, and the window W disposed on the lower side of the open / close door 8 mainly passes through the interior of the container 5 from the cab 1a. It is for confirmation. Reference numeral 30 denotes a door lock mechanism that locks the doors 7 and 8 by operating the handle 31.

  Reference numerals 9 and 10 are first and second main protective walls provided outside the door 7 as shown in FIG.

  As shown in FIG. 7 and the like, the first main protective wall 9 is disposed adjacent to the open / close door 7 via an intermediate member 40. As shown in FIG. 8, the intermediate member 40 is disposed at two locations, upper and lower, between the open / close door 7 and the first main protective wall 9. As shown in the enlarged view of the R portion in FIG. 9, the intermediate member 40 is provided with roller members 42 and 43 that are rotatable above and below the connecting plate 41 so as to be spaced apart from each other. Two roller members 42 and 43 are provided at intervals in the front-rear direction.

  Each of the roller members 42 is supported by a guide rail 52 fixed to the outside of the opening / closing door 7 so as to be able to roll. Each roller member 43 is supported by a guide rail 53 fixed inside the first main protective wall 9 so as to be able to roll. Accordingly, the first main protective wall 9 can be pulled out and stored along the lateral width direction of the open / close door 7 as shown in FIG.

  The second main protective wall 10 is also disposed adjacent to the first main protective wall 9 via the intermediate member 40 as shown in FIG. Similar to the open / close door 7 and the first main protective wall 10, the intermediate member 40 is arranged at two locations, as shown in FIG. As shown in FIG. 9 and the like, each roller member 42 is supported by a guide rail 54 fixed to the outside of the first main protective wall 9 so as to be able to roll. Each roller member 43 is supported by a guide rail 55 fixed to the inside of the second protective wall 10 so as to be able to roll. Accordingly, the second protective wall 10 can be pulled out and stored along the lateral width direction of the first protective wall 9 through the intermediate member 40 as shown in FIG.

  In this embodiment, the open / close door 7 and the second main protective wall 10 are connected by a chain mechanism C via the first main protective wall 9 as shown in FIG. As a result, when the operator grasps the handle 10 a provided inside the second main protective wall 10 and pulls out the second main protective wall 10, the first main protective wall 9 follows the second main protective wall 10. Pulled out. Therefore, the worker can easily form a protective wall along the platform 6 on the platform 6 as shown in FIG.

  Reference numeral 32 denotes a fixing pin for positioning the first main protective wall 9 and the second main protective wall 10. Since the first main protective wall 9 and the second main protective wall 10 are restrained by the open / close door 7 by the chain mechanism C, the fixing pin 32 is inserted into the second main protective wall 10, so that the open / close door 7 The first main protective wall 9 and the second main protective wall 10 can be positioned with respect to each other.

  Similarly, from the state shown in FIG. 8, when the operator grasps the handle 10 a provided inside the second main protective wall 10 and pulls the second main protective wall 10 into the open / close door 7, the first main protective wall 9. Is also drawn outside the open / close door 7 following the second main protective wall 10. Therefore, the operator can easily store the protective wall on the platform 6 outside the door 7 as shown in FIG.

  Reference numeral 11 denotes a sub-protective wall provided at the door end 10f of the second main protective wall (outermost main protective wall) 10 located on the outermost side. The sub-protection wall 11 has a frame structure, and is connected to the second main protection wall 10 so as to be openable and closable via two hinges 12 spaced apart from each other as shown in FIG. Yes.

  As shown in FIG. 10, one hinge board 12a of the hinge 12 is connected to the door end 10f of the second main protective wall 10 via a connecting member 13 made of an L-shaped angle member. Thereby, the hinge part (shaft part 12 s) of the hinge 12 is connected to the door end 10 f side of the second main protection wall 10.

  On the other hand, the other hinge board 12b of the hinge 12 is connected to an extension member 14 provided integrally on the suspension base 11f side of the sub-protection wall 11 as shown in FIG. The extension member 14 interferes with the summing portion 7f of the open / close door 7 and the door end 9f of the first protective wall 9 when the open / close door 7 is opened / closed with respect to the second main protective wall 10 as shown in FIG. It is provided so as not to cross these. As a result, the hinge 12 has the extension member 14 as the one-sleeve side portion, and the one-sleeve side portion is connected to the suspension base 11 f side of the auxiliary protective wall 11.

  Therefore, the hinge 12 functions as a one-sleeve hinge that connects the open / close door 7 and the auxiliary protective wall 11 with the extension member 14 as a one-sleeve side portion.

  In the open / close door 7, as shown in FIG. 11, the container 5 is opened from the closed state as shown in FIG. 12, and then the second main protective wall 10 is pulled out along the platform 6 as shown in FIG. 13. Thus, a protective wall composed of the open / close door 7 and the first and second main protective walls 9 and 10 can be formed. Further, if the auxiliary protective wall 11 is opened with the hinge 12 as a base point, the door end side of the second main protective wall 10 can be further protected as shown in FIG.

  The same applies to the door 8, and reference numerals 15 and 16 denote first and second main protective walls provided outside the door 8 as shown in FIG.

  Similarly to the opening / closing door 7 side, the first main protective wall 15 is also arranged adjacent to the opening / closing door 8 via an intermediate member 40 as shown in FIG. Thereby, as with the opening / closing door 7 side, the first main protective wall 15 can be pulled out and stored along the lateral width direction of the opening / closing door 8 as shown in FIG.

  Similarly to the open / close door 7 side, the second main protective wall 16 is also disposed adjacent to the first main protective wall 15 via the intermediate member 40 as shown in FIG. As a result, as with the open / close door 7 side, the second main protective wall 16 can also be pulled out and stored along the lateral width direction of the first main protective wall 15 via the intermediate member 40 as shown in FIG. It is.

  The open / close door 8 and the second main protective wall 16 are also connected by the chain mechanism C via the first main protective wall 15 as shown in FIG. As a result, when the operator grasps the handle 16a provided inside the second main protective wall 16 and pulls out the second main protective wall 16, the first main protective wall 15 is also the second main protective wall 15 like the open / close door 7 side. It is pulled out following the protective wall 16. Therefore, the operator can easily form the main protective wall along the platform 6 on the platform 6 as shown in FIG.

  Similarly, from the state shown in FIG. 15, when the operator grasps the handle 16 a provided inside the second main protective wall 16 and pulls the second main protective wall 16 into the open / close door 8, the first main protective wall 15. Is also drawn to the outside of the door 8 following the second main protective wall 16. Therefore, the operator can easily store the protective wall on the platform 6 outside the door 8 as shown in FIG.

  Reference numeral 17 denotes a sub-protective wall provided at the door end 16 f of the second main protective wall (outermost main protective wall) 16 located on the outermost side. The sub-protective wall 17 has a frame structure similar to the sub-protective wall 11, and as shown in FIG. 17 and the like, the sub-protective wall 17 is connected to the second main protective wall 16 via two hinges 12 that are spaced apart vertically. And can be opened and closed.

  Similarly to the open / close door 7 side, one hinge board 12a of the hinge 12 is also connected to the door end 16f of the second main protective wall 16 via an L-shaped connecting member 13, as shown in FIG. Thereby, the hinge part (shaft part 12s) of the hinge 12 is connected to the door end 16f side of the second main protective wall 16.

  On the other hand, the other hinge board 12b of the hinge 12 is also connected to an extension member 14 provided integrally on the suspension base 17f side of the auxiliary protective wall 17, as shown in FIG. Yes. Similarly to the opening / closing door 7 side, the extension member 14 also has a summing portion 8f of the opening / closing door 8 and a door end 15f of the first main protection wall 15 when the opening / closing door 8 is opened / closed with respect to the second main protection wall 15. It is provided so as to cross these so as not to interfere. As a result, the hinge 12 is connected to the suspension base 17f side of the sub-protective wall 17 with the extension member 14 as the one-sleeve side portion, similarly to the open / close door 7 side.

  Therefore, the hinge 12 on the open / close door 8 side also functions as a single-sleeve hinge that connects the open / close door 8 and the sub-protective wall 17 with the extension member 14 as a single-sleeve side portion, similarly to the open / close door 7 side.

  As described above, according to the present embodiment, on the opening / closing door 7 side, as shown in FIG. 10 and the like, the second main protection wall 10, which is the outermost main protection wall stored outside the opening / closing door 7 of the container 5. A hinge portion 12 s of a hinge 12 that functions as a one-sleeve hinge is fixed to a door tip 10 f via a connecting member 13, and an extension member 14 corresponding to the long-sleeve side portion of the hinge 12 is attached to a suspension base of the auxiliary protective wall 11. By being connected to the 11f side, when the secondary protective wall 11 is opened and closed with respect to the second main protective wall 10, it does not interfere with the summing portion 7f of the door 7 and the door tip 9f of the first main protective wall 9. Can be.

  Therefore, if the secondary protective wall 11 is closed by rotating the secondary protective wall 11 inward with the hinge portion 12s at the door tip 10f of the second primary protective wall 10 as shown in FIGS. 6 and 9, etc. The auxiliary protective wall 11 can be housed inside the open / close door 7 such that the open / close door 7 and the first main protective wall 9 are sandwiched between the protective wall 11 and the second main protective wall 10. Further, as shown in FIG. 12 and the like, even after the opening and closing door 7 is opened, the protective walls 9 and 10 are opened from the outside of the opening and closing door 7 as shown in FIG. It can be pulled out. Further, the sub-protection wall 11 is formed after the first and second main protection walls 9 and 10 are pulled out from the outside of the door 7 as shown in FIG. 13, or as shown in FIG. The two main protective walls 9 and 10 can be opened and closed as shown in FIG. 14 by the hinge 12 functioning as a one-sleeve hinge without pulling out.

  The same applies to the open / close door 8 side. The hinge 12 of the hinge 12 functioning as a one-sleeve hinge is provided on the door end 16f of the second main protective wall 16 which is the outermost main protective wall housed outside the open / close door 8 of the container 5. The portion 12 s is fixed via the connecting member 13, and the extension member 14 corresponding to the long sleeve side portion of the hinge 12 is connected to the suspension base 17 f side of the sub-protective wall 17. Thus, when the auxiliary protective wall 17 is opened and closed, it can be prevented from interfering with the summing portion 8 f of the open / close door 8 and the door tip 15 f of the first main protective wall 15.

  Therefore, as with the second main protective wall 10, the second main protective wall 16 can be rotated by rotating the auxiliary protective wall 17 inward with the hinge portion 12 s as a base point to close the auxiliary protective wall 11. The secondary protective wall 17 is stored inside the open / close door 8 such that the secondary protective wall 17 sandwiches the open / close door 8 and the first primary protective wall 15 between the secondary protective wall 17 and the second primary protective wall 16. Can do. Similarly to the case shown in FIG. 12, even after the opening / closing door 8 is opened, as in the case of the opening / closing door 7, the auxiliary protective wall 17 is not rotated and opened, as shown in FIG. 13. The first and second protective walls 15 and 16 can be pulled out from the outside of the open / close door 8. Further, as shown in FIG. 13, the secondary protective wall 17 is the same as the secondary protective wall 11 after the first and second primary protective walls 15, 16 are pulled out from the outside of the open / close door 7, or As shown in FIG. 12, the hinge 12 functioning as a one-sleeve hinge can be opened and closed as shown in FIG. 18 without pulling out the first and second main protective walls 15 and 16.

  Therefore, according to the present invention, when not in use, the doors 7 and 8 can be opened and closed without being stored outside the doors 7 and 8 of the container 5, and the doors 7 and 8 are opened for use. Sometimes, the secondary protective wall that can be freely opened and closed with respect to the second main protective walls 10 and 16 from the state housed in the open / close doors 7 and 8 or the state pulled out from the open and close doors 7 and 8. 11 and 17 can be provided.

  Further, in this embodiment, on the opening / closing door 7 side, as shown in FIG. 8 and the like, a recess 10c is provided in the door tip 10f of the second main protective wall 10. The concave portion 10 c accommodates the connecting member 13. In addition, the summing portion 7f of the door 7 is also provided with a recess 7c as shown in FIG. As shown in FIG. 12 and the like, the concave portion 7 c accommodates the extension member 14 that is the long sleeve side portion of the hinge 12 when the auxiliary protective wall 11 is closed. Thereby, even when the sub-protection wall 11 is closed, the overall size does not exceed the size of the opening / closing door 7 as shown in FIG.

  The same applies to the open / close door 8 side, and as shown in FIG. 15 and the like, a recess 16c is provided in a door tip 16f of the second protective wall 16. The recessed part 16c also accommodates the connecting member 13 in the same manner as the opening / closing door 8 side. In addition, the summing portion 8f of the door 8 is also provided with a recess 8c as shown in FIG. Similarly to the open / close door 7 side, the recessed portion 8 c also accommodates the extension member 14 that is the long sleeve side portion of the hinge 12 when the auxiliary protective wall 17 is closed. Thereby, even when the sub-protection wall 17 is closed, the overall size does not go out of the size of the opening / closing door 8 as shown in FIG.

  Accordingly, as in this embodiment, the summing portion 7f of the open / close door 7 and the door tip 10f of the second main protective wall 10 are provided with the recesses 7c and 10c for accommodating the long sleeve hinges (12 to 14), respectively, and the opening and closing. If the concave portions 8c and 16c for accommodating the long sleeve hinges (12 to 14) are provided in the summing portion 8f of the door 8 and the door tip 16f of the second main protective wall 16, respectively, the opening and opening and closing of the container 5 Without changing the size of the doors 7 and 8, as shown in FIG. 2, the doors 7 and 8 can be housed inside the open / close doors 7 and 8 of the container 5.

  In the present embodiment, the first main protective walls 9 and 15 are narrower than the open / close doors 7 and 8, respectively. For this reason, in this embodiment, it is not necessary to provide a recess for the first main protective walls 9 and 15. However, according to the present invention, when the first main protective walls 9 and 15 interfere with the long-sleeve hinges (12 to 14), the recesses are formed in the same manner as the open / close doors 7 and 8 and the second main protective walls 10 and 16. Can be provided.

Incidentally, reference numeral S ₁ shown in FIG. 2 and the like is a sealing member for sealing a gap in the summoned portion that is generated when the open / close doors 7 and 8 are closed. As shown in the AA cross section of FIG. 4, the seal member S ₁ is provided with a plate member 18 such as an L-shaped angle member at the summing portion of the door 8 and provided at the tip of the plate member 18. It has been. The seal member S ₁ closes the open / close door 7 and then closes the open / close door 8, thereby sealing the plate member 18 provided on the open / close door 7 as indicated by a two-dot chain line. The seal member S ₁ can be provided on at least _one of the open / close doors 7 and 8.

In addition, in this embodiment, when the open / close doors 7 and 8 are closed together with the auxiliary protective walls 11 and 17 on the extension members 14 which are the long sleeve side portions of the open and close doors 7 and 8, respectively, as shown in FIG. A seal member S ₂ is provided to seal the gap between the _two . As shown in the BB cross section of FIG. 5, the seal member S _{2 is} also provided with a plate member 18 such as an L-shaped angle member on the extension member 14 of the hinge 12, and is provided at the tip of the plate member 18. ing. The sealing member S ₂ also seals the plate member 18 provided on the extension member 14 of the opening / closing door 7 by closing the opening / closing door 8 after closing the opening / closing door 7 as shown in FIG. Thereby, when the open / close doors 7 and 8 are closed, the seal member S ₂ seals the inside of the container 5 from the outside as shown in FIG. The seal member S ₂ can also be provided on at least one of the open / close doors 7 and 8 in the same manner as the seal member S ₁ .

Further, in this embodiment, as described above, the summing portions 7f and 8f of the open / close doors 7 and 8 are respectively formed with the recesses 7c and 8c for accommodating the extension member 14 in a state where the auxiliary protective walls 11 and 17 are closed. Has been. For this reason, in this embodiment, the seal member S ₃ is provided on the back surface 14 f of the extension member 14. As shown in FIG. 5 and the like, each of the sealing members S ₃ has a recess 7 c when the first main protective wall 9 and the second main protective wall 10 are stored in the open / close door 7 with the sub protective wall 11 closed. When the first main protective wall 15 and the second main protective wall 16 are stored in the open / close door 8 with the sub-protective wall 17 closed, the recess 8c is sealed. The seal member S3 can also be provided in the recess 7c or 8c.

Furthermore, the open / close doors 7 and 8 are respectively provided with guides 19 for accommodating the auxiliary protective walls 11 and 17. As shown in FIG. 6 and the like, the guides 19 are superimposed on the inner surfaces of the doors 7 and 8 between the inner surfaces F ₇ and F ₈ , respectively, on the inner surfaces F ₇ and F ₈ of the doors 7 and 8. A gap for accommodating the auxiliary protective walls 13 and 19 is formed. Thereby, as shown in FIG. 2, even if the open / close doors 7 and 8 are closed in a state where the sub-protection walls 11 and 17 are stored, the open / close doors 7 and 8 are not opened by mistake. .

  By the way, the opening angle of each of the secondary protection walls 11 and 17 can be freely adjusted by the hinge 12. However, in this embodiment, as shown in FIG. The protective wall 11 is configured to be kept closed.

  As shown in FIG. 19 and the like, the second main protective wall 10 is provided with a support plate 22 in which a through hole 21 is formed. The long shaft portion 20a of the lock pin 20 can be rotatably inserted into the through hole 21. Further, as shown in FIG. 14, the long shaft portion 20a rotatably penetrates the inside of the pipe member 23 arranged below the support plate 22, and is attached to the tip of the nut 24 (in this embodiment, FIG. 19). As shown in FIG. 4, the nuts are held by the double nuts 24a and 24b).

  On the other hand, the extension member 14 of the sub protection wall 11 is also provided with a pipe member 26 in which a through hole 25 into which the short pin 20b of the lock pin 20 can be inserted is formed, as shown in FIG.

  As shown in FIG. 10, when the short pin 20 b of the lock pin 20 is inserted into the through hole 25, the through hole 21 and the through hole 25 are arranged such that the sub-protective wall 11 is against the second main protective wall 10. It is provided at intervals that cannot be opened. Thereby, if the short pin 20b of the lock pin 20 is inserted into the through hole 25, the sub protection wall 11 can be kept closed. In other words, if the lock pin 20 is inserted into the through hole 25, the auxiliary protective wall 11 will not be accidentally opened with respect to the second main protective wall 10. Therefore, by using the lock pin 20, the first main protective wall 9 and the second main protective wall 10 can be taken in and out while maintaining the closed state of the sub protective wall 11.

  Further, when the lock pin 20 is used, when the sub-protection wall 11 is opened with respect to the second main protection wall 10, the opening angle can be maintained at a constant angle.

  As shown in FIG. 19, the extension member 14 of the sub-protection wall 11 is provided with a plate-shaped angle adjusting member 27. The angle adjusting member 27 is provided with a plurality of through holes 27a. The short pin 20b of the lock pin 20 can be inserted into each of the through holes 27a. As shown in FIG. 19, each of the through holes 27 a is arranged so as to exist on the turning radius of the lock pin 20 (short pin 20 b) with the through hole 21 as a base point according to the opening angle of the sub-protective wall 11. Has been.

  For this reason, when the opening / closing door 7 is opened and the through hole 27a at the position corresponding to the short pin 20b of the lock pin 20 is determined, the short pin 20b of the lock pin 20 is inserted into the through hole 27a. The movement of the protective wall 11 is regulated by the lock pin 20. That is, if the lock pin 20 is inserted into the through hole 27 a, the auxiliary protective wall 11 does not move at a constant angle with respect to the second protective wall 11. Therefore, by using the lock pin 20, when opening the sub-protection wall 11, the opening angle can be maintained at a constant angle.

  The above description relates to the door 7 side, but the same applies to the door 8 side as shown in FIGS. Reference numeral 28 denotes a through hole for accommodating the short pin 20b of the lock pin 20 when the auxiliary protective wall 11 is opened and closed. Thereby, if the short pin 20b of the lock pin 20 is inserted into the through hole 28, it is possible to prevent the lock pin 20 from rotating around the through hole 21 and playing.

  According to the present invention, the lock pin 20 can also be rotated around the through hole 21 in a state where the lock pin 20 can be freely removed without preventing the longitudinal axis 20a from coming off.

  FIG. 20 is an example of the form of the protective wall structure according to this embodiment. In this embodiment, the platform 6 forms a work space by extending the sub platforms 6d and 6e from the main platform 6c.

  On the open / close door 7 side, the open / close door 7 is opened so as to be aligned with the side edge of the main platform 6c, the first main protective wall 9 and the second main protective wall 10 are pulled out, and the auxiliary protective wall 11 is used as the first main protective wall. It is open to align with the side edges of the wall 9 and the second main protective wall 10. On the other hand, on the side of the open / close door 8, the open / close door 8 is opened so as to be aligned with the side edge of the main platform 6 c, and the first main protective wall 15 and the second main protective wall 16 are pulled out partway, and the sub-protective wall. 17 is opened halfway so as to be perpendicular to the first main protective wall 15 and the second main protective wall 16. If the worker adopts such a form of the protective wall structure, it is effective in a working state in which the machine body door is opened on the sub platform 6e side and a boarding entrance (conveying port) is formed on the sub platform 6d side.

  FIG. 21 is another example of the form of the protective wall structure according to the present embodiment. In this embodiment, the platform 6 forms a work space by sliding the main platform 6c in the lateral direction (container left direction) with respect to the connection platform 6a and extending the sub platforms 6d and 6e respectively.

  On the open / close door 7 side, the open / close door 7 is greatly opened in accordance with the sliding direction of the main platform 6c, the first main protective wall 9 and the second main protective wall 10 are pulled out, and the secondary protective wall 11 is moved to the side of the secondary platform 6d. Open to align with the edges. On the other hand, on the opening / closing door 8 side, the opening / closing door 8 is opened slightly in accordance with the sliding direction of the main platform 6c, the first main protection wall 9 and the second main protection wall 10 are pulled out, and the sub protection wall 17 is attached to the sub protection wall 17. It is half open so as to face the protective wall 11. If the worker adopts such a form of the protective wall structure, since the chassis 1 cannot be worn near the fuselage, it is effective in a working state in which the platform 6 cannot be directed straight to the boarding port (conveying port).

  FIG. 22 shows still another example of the form of the protective wall structure according to the present embodiment. In this embodiment, the platform 6 forms a work space by sliding the main platform 6c laterally (to the left side of the container) with respect to the connection platform 6a and alternately extending the sub platforms 6d and 6e. ing.

  On the open / close door 7 side, the open / close door 7 is opened slightly in accordance with the sliding direction of the main platform 6c, the first main protective wall 9 and the second main protective wall 10 are pulled out partway, and the sub-protective wall 11 is pulled out to the main platform 6c. Open to align with the edges of the. On the other hand, on the opening / closing door 8 side, the opening / closing door 8 is greatly opened in accordance with the sliding direction of the main platform 6c, and the first main protection wall 9 and the second main protection wall 10 are pulled out halfway, and the sub-protection wall 17 is provided. Is partially opened along the side edge of the main platform 6c (sub-platform 6e). If the operator adopts such a form of the protective wall structure, the platform 1 cannot be put close to the fuselage, so that the platform 6 cannot be directed straight to the boarding entrance (conveyance port), and the sub-wall structure is in an auxiliary state. This is effective in a working state in which the machine body door opens on the platform 6d side, a boarding port (conveyance port) is formed on the sub platform 6e side, and the opened machine door interferes with the sub platform 6d.

  According to the present invention, the platform 6 can also slide the main platform 6c in the horizontal direction (the container left direction) with respect to the connection platform 6a. Further, the shape of the platform 6 should be appropriately selected according to the work situation. That is, the form of the protective wall structure described in FIGS. 20 to 22 is merely an example as described above. Therefore, the form of the protective wall structure can be appropriately modified. Reference numeral 6r denotes a protective member for protecting the sub platforms 6d and 6e. The protection member 6r is made of an elastic material such as rubber, for example.

  The above description is merely an example of the present invention, and various modifications can be made. For example, in the above embodiment, the main protective wall is composed of two sheets, but the main protective wall may be at least one for the open / close door. Further, the structure for sliding the main protective wall relative to the open / close door and the structure for sliding between the main protective walls are not limited to this as long as the main protective wall can be pulled out and stored.

  As for the auxiliary protective walls 11 and 17, a thin plate member such as a metal mesh plate can be provided to the frame structure. In addition, the sub-protection walls 11 and 17 can employ the same plate member as the main protection wall or the like instead of the frame structure. Furthermore, the size of the auxiliary protective walls 11 and 17 is not limited as long as the function of the hinge 12 is exhibited.

  In addition, the shapes of the auxiliary protective walls 11 and 17 can be changed as appropriate. For example, the sub-protection wall 11 has its tip portion inclined according to the body cross-sectional shape of the fuselage. Further, as shown by two-dot chain lines in FIGS. 8 and 15, protection members 11 r and 17 r can be provided at the tips of the sub-protection walls 11 and 17, respectively.

  In this embodiment, the long sleeve hinges (12 to 14) are separately formed as the hinge 12, the connecting member 13, and the extending member 14. However, according to the present invention, the connecting member 13 and the extending member 14 are connected to the hinge board 12a. , 12b, or the second main protective wall 10 (16) and the sub protective wall 11 (17) itself. Although the container 5 is provided in the chassis 1, according to this invention, it can also be arrange | positioned on the trolley separated from the cab 1a.

  Furthermore, according to the present invention, the connection between the secondary protective wall 11 (17) and the second main protective wall 10 (16) is performed between the open / close door 7 (8) and the outermost main protective wall. For example, a normal hinge having the same sleeve length (the length of the hinged board) can be obtained by changing the extension member 14 to a member having the same length as that of the connecting member 13. Can also be done.

  The present invention comprises a chassis or a container that can be raised and lowered relative to the carriage, and two doors that open from the container to the left and right to form an opening that leads to the interior of the container. An aerial work platform with at least one protective wall that can be pulled out and stored along the direction, and when the door is closed in the stored state, the door tip becomes a summing part with the door. If it exists, it can be used for an aerial work vehicle for various purposes such as transporting food, luggage and boarding people.

DESCRIPTION OF SYMBOLS 1 Chassis 2 Link mechanism 3 Cargo frame 5 Container 6 Platform 7 Opening and closing door 8 Opening and closing door 9 1st main protection wall 10 2nd main protection wall 11 Sub protection wall 12 Hinge (long sleeve hinge)
13 Connecting member (long sleeve hinge)
14 Extension member (long sleeve hinge)
15 1st main protective wall 16 2nd main protective wall 17 Sub protective wall 19 Guide 20 Lock pin 20a Long pin 20b Short pin 21 Through hole (for long pin rotation)
22 Through-hole 27 Angle adjusting member 27a Through-hole (for fixing short pin)
28 Through hole (for fixing lock pin)

Claims (7)

A carriage or a container that can be raised and lowered with respect to the carriage, and two doors that open from side to side to form an opening that leads to the interior of the container,
At least one main protection that can be pulled out and stored along the width direction of the door on the outside of the door, and when the door is closed in the storage state, the door tip becomes a calling portion together with the door An aerial work vehicle with walls,
An auxiliary protective wall is placed inside the outermost main protective wall on the outermost side with a door in between, and the auxiliary protective wall is connected to the door of the outermost main protective wall via a hinge so that it can be opened and closed. An aerial work vehicle characterized by   In Claim 1, the hinge is a one-sleeve hinge in which the hinge portion is connected to the outermost main protective wall and the one-sleeve side portion is connected to the suspending side of the auxiliary protective wall. car.   3. The aerial work vehicle according to claim 2, wherein a recess for accommodating the one-sleeve side portion of the one-sleeve hinge is provided in the summing portion of the door and the door tip of the protective wall. The long sleeve of the other one- sleeve hinge according to claim 2 or 3 , wherein when the door is closed together with the auxiliary protective wall on the long-sleeve side portion of at least one of the left and right one- sleeve hinges, An aerial work vehicle characterized in that a seal member for sealing a gap with a side portion is provided. 5. When the door is closed together with the auxiliary protective wall on the back side of the long sleeve side portion of the one- sleeve hinge or the summing portion of the door according to claim 2, An aerial work vehicle characterized in that a seal member for sealing a gap is provided.   The guide according to any one of claims 1 to 5, wherein a guide is formed on the inner surface of the door so as to form a gap between the inner surface and the auxiliary protective wall superimposed on the inner side of the door. An aerial work vehicle. In any one of Claims 1 thru | or 6, while providing the pin member which has a shaft part which can rotate centering on the outermost main protection wall side, a plurality of penetration holes which can insert the tip of the pin member concerned are provided,
An aerial work vehicle characterized in that the opening angle between the outermost main protective wall and the secondary protective wall is fixed by inserting the tip of the pin member into each through hole of the secondary protective wall as appropriate. .

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