JP5315216B2 - Transport vehicle - Google Patents

Description

  The present invention relates to a transport vehicle, and more particularly to a transport vehicle that can reduce the burden on a support member and suppress damage to the support member.

  Some transport vehicles are configured such that a load can be mounted at the center, and a box such as a control panel in which a control device or a drive device is housed is disposed at an end or the like. When performing the inspection work of the control device or the like housed in the box, the inspection door that is rotatably supported by a support member such as a hinge is opened.

  Here, as a door structure used for a box such as a control panel, for example, as disclosed in Japanese Utility Model Publication No. 59-175595, a roller 8 (rolling member) is provided at the lower part of the door 1 (inspection door). There is one in which the roller 8 receives the load of the door 1 and can reduce the load applied to the hinge 3 (support member) by being arranged so as to contact the floor of the body 2 (storage body).

Japanese Utility Model Publication 59-175595

  However, since the inspection vehicle has a large inspection door, the inspection door is heavy, and since the inspection door is equipped with a device such as a control device, the inspection door is further heavy. It has become. Therefore, when the conventional door structure described above is applied as it is to the inspection door of the transport vehicle, the load acting on the support member is increased due to vibration during traveling of the transport vehicle, and the support member is easily damaged. was there.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a transport vehicle that can reduce the burden on the support member and suppress the breakage of the support member.

  In order to achieve this object, a transport vehicle according to claim 1 is a box-shaped storage body that opens on one side, an inspection door that opens and closes the opening of the storage body, and the inspection door that is rotatable. A holding member attached to either the inner wall surface of the storage body or the surface of the inspection door facing the storage body, and a holding member thereof. The contact member having a rolling member held so as to be able to roll and the inner wall surface of the storage body or the surface of the inspection door facing the storage body are attached to the other side and from the inspection door side. The rolling member is in contact with the descending surface in a state in which an opening of the housing is closed by the inspection door. .

  The transport vehicle according to claim 2 is the transport vehicle according to claim 1, wherein the lowering surface is connected to the first lowering surface and an end portion of the first lowering surface on the inspection door side, and the first lowering surface. The rolling member is in contact with the first descending surface in a state in which the opening of the storage body is closed by the inspection door.

  The transport vehicle according to claim 3 is the transport vehicle according to claim 1, wherein the lowering surface is connected to the first lowering surface and an end of the first lowering surface on the inspection door side and the first lowering surface. And a third descending surface having a smaller angle of inclination with respect to the ground than the one descending surface, and the rolling member is in contact with the first descending surface in a state where the opening of the storage body is closed by the inspection door.

  According to the transport vehicle of the first aspect, the holding member that is attached to either the inner wall surface of the storage body or the surface of the inspection door that faces the storage body, and the rolling member that is rotatably held by the holding member. A lowering member that is attached to either the contact member having a moving member and the inner wall surface of the storage body or the surface of the inspection door that faces the storage body, and that is inclined downward toward the ground side from the inspection door side toward the storage body side. The rolling member is in contact with the descending surface in a state where the opening of the housing is closed by the inspection door, and the rolling member is placed on the rolling member from the inspection door side by the weight of the inspection door. The force that tries to roll to the container side works. Thereby, it can be set as the state where the inspection door was pressed by the storage body by the effect | action of the force which is going to attract the inspection door to the storage body side. Therefore, it is possible to displace the storage body and the inspection door in the same direction in an integrated state against vibrations generated when the transport vehicle travels, and to displace the inspection door relative to the storage body. Can be suppressed. As a result, it is possible to reduce the burden on the support member and prevent the support member from being damaged.

  In addition, in the state where the opening of the storage body is closed by the inspection door, a force is always applied to the inspection door toward the storage body side, so that the inspection door is prevented from moving in the opening direction while the transport vehicle is traveling. There is an effect that can be done. Further, in this case, if the inspection door is configured to contact the storage body via a packing made of an elastic material, the inspection door presses the packing by the force to attract the inspection door described above. The state where the body is sealed by the inspection door can be reliably maintained.

  Also, when performing the work of closing the inspection door to close the opening of the storage body, the rolling member tries to roll on the descending surface due to the weight of the inspection door, so that the inspection door is moved in the closing direction by its own weight. Can be moved. Therefore, since the role which assists the operation | work which closes an inspection door can be played, there exists an effect that the operation | work which closes an inspection door can be performed with smaller force. In addition, there is an effect that the inspection door can be easily moved to the closed position, and the storage body can be reliably sealed by the inspection door.

  In the transport vehicle according to claim 2, in addition to the effect achieved by the transport vehicle according to claim 1, the descending surface is connected to the first descending surface and the end of the first descending surface on the inspection door side. The rolling member is in contact with the first descending surface in a state in which the opening of the storage body is closed by the inspection door. Even when the inspection door moves in the opening direction during traveling, the rolling member comes into contact with the second descending surface having a large inclination angle with respect to the ground to ensure that the inspection door moves in the opening direction. There is an effect that it can be suppressed.

  According to a third aspect of the present invention, in addition to the effect of the first aspect of the present invention, the lowering surface is connected to the first lowering surface and the end of the first lowering surface on the inspection door side. Since the rolling member is in contact with the first descending surface in the state where the opening of the storage body is closed by the inspection door with the third descending surface having a smaller inclination angle with respect to the ground than the first descending surface, the inspection door When the rolling member is opened, the rolling member moves from the first descending surface to the third descending surface having a smaller inclination angle with respect to the ground than the first descending surface, thereby reducing the force required to open the inspection door. be able to. Therefore, the inspection door can be opened with a small force as compared with the case where the descending surface includes only the first descending surface. In addition, in the initial stage when closing the inspection door, the rolling member rolls on the third descending surface whose inclination angle with respect to the ground is smaller than that of the first descending surface, so that the rolling member rolls toward the storage body. It is possible to suppress the force. Therefore, even if the weight of the inspection door is large, the inspection door can be moved slowly in the closing direction, so that the impact when the inspection door is closed can be reduced.

It is a back perspective view of the conveyance vehicle in a 1st embodiment of the present invention. (A) is a rear view of a conveyance vehicle, (b) is sectional drawing of the conveyance vehicle in the IIb-IIb line | wire of Fig.2 (a). (A) is a partial expanded sectional view of the conveyance vehicle before closing a storage body with an inspection door, (b) is a partial enlarged sectional view of a conveyance vehicle in the state where a storage body was closed with an inspection door. (A) And (b) is the elements on larger scale of the conveyance vehicle in 2nd Embodiment of this invention. (A) And (b) is the elements on larger scale of the conveyance vehicle in 3rd Embodiment of this invention. It is a partial expanded sectional view of a cradle and a contact member in the state where a storage object was closed by an inspection door.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. First, the schematic configuration of the transport vehicle 100 will be described with reference to FIG. FIG. 1 is a rear perspective view of a transport vehicle 100 according to the first embodiment of the present invention.

  As shown in FIG. 1, the transport vehicle 100 is a vehicle for carrying a load and transporting it to a predetermined position, and includes a control panel 1 in which a control device that controls operation of the transport vehicle 100 is housed, The load receiving part 2 is configured to be capable of mounting an object, and the drive wheel 3 that supports the load receiving part 2 and rolls on the ground is mainly provided. The control panel 1 is arranged on the front side and the rear side (upper right side and lower left side in FIG. 1) of the transport vehicle 100 of the cargo receiving unit 2, and is open on one side (the front side or the rear side in the travel direction of the transport vehicle 100). Is formed, and an inspection door 5 that is rotatably disposed on one surface side of the storage body 4 and closes the opening of the storage body 4 is provided. The inspection door 5 is opened and closed when performing inspection work on the control device housed in the control panel 1.

  Next, with reference to FIG. 2, the structure of the storage body 4 and the inspection door 5 is demonstrated. 2A is a rear view of the transport vehicle 100, and FIG. 2B is a cross-sectional view of the transport vehicle 100 taken along line IIb-IIb in FIG. 2A. 2A and 2B, illustration of the control device housed in the control panel 1 is omitted, and the illustration of the control device is similarly omitted from this point onward. FIG. 2A illustrates a state in which the inspection door 5 on one side (right side in FIG. 2A) is opened and the inspection door 5 on the other side (left side in FIG. 2A) is closed. Further, in FIGS. 2 (a) and 2 (b), the opening angle of the inspection door 5 with respect to the one surface side (FIG. 2 (a) front side in the vertical direction of the paper surface, right side of FIG. 2 (b)) is different. 2A shows a state in which the opening angle of the inspection door 5 with respect to the one surface side of the storage body 4 is an obtuse angle, and FIG. 2B shows the one surface side of the storage body 4 of the inspection door 5. The state where the open angle with respect to (FIG. 2 (a) front side in the direction perpendicular to the paper surface, right side of FIG. 2 (b)) is a right angle is shown.

  As shown in FIG. 2 (a), the storage body 4 includes both sides in the vehicle height direction of the transport vehicle 100 (upper side and lower side in FIG. 2 (a)), both sides in the vehicle width direction (left side and right side in FIG. 2 (a)), And the side of the cargo receiving portion 2 (see FIG. 2 (a), the back side in the direction perpendicular to the paper surface, see FIG. 1) is surrounded by a plate-like wall portion 41, and one side (FIG. 2 (a) front side) is open. It is formed in a box shape. In addition, extending portions 42 extending toward the outside of the storage body 4 are provided at the opening-side end portions of the wall portions 41 disposed on both the vehicle height direction side and the vehicle width direction sides of the transport vehicle 100. It is connected continuously.

  In addition, the inspection door 5 has a hinge 6 that rotatably supports the inspection door 5 on the extended portion 42 disposed on one side in the vehicle width direction of the transport vehicle 100 (right side in FIG. 2A). Are connected through. The hinge 6 includes an L-shaped plate member and a shaft member that rotatably supports the plate member. The plate member is joined to the extending portion 42 and the shaft member is the inspection door 5. It is joined to.

  As shown in FIG. 2B, the extending portion 42 has a substantially U-shaped cross section by a pair of opposing walls 42a1 and 42a2 facing each other and a continuous wall 42b connecting the pair of opposing walls 42a1 and 42a2. It is configured. The extended portion 42 has an end portion of the opposing wall 42a1 on one side (left side in FIG. 2 (b)) in a state where the convex surface side (continuous wall 42b side) is directed to the inside of the opening of the storage body 4. One extended portion 42 having a frame shape is formed by connecting 42 connected to the wall portion 41 and connected to each adjacent wall portion 41 to each other.

  A packing 43 made of an elastic material is covered on the outer wall surface (the surface facing the inspection door 5) of the facing wall 42a2 on the other side (the right side in FIG. 2B). When closing the opening of the storage body 4 by the inspection door 5, the inspection door 5 can be securely adhered to the extended portion 42 by interposing the packing 43 between the inspection door 5 and the facing wall 42 a 2. . Thereby, the storage body 4 can be reliably sealed by closing the inspection door 5.

  Furthermore, the convex surface side (the inner wall surface side of the storage body 4) of the continuous wall 42b constituting the extending portion 42 on one side in the vehicle height direction (the lower side in FIG. 2B) is formed of a plate-like member. The cradle 70 is attached. The cradle 70 is a member that supports the inspection door 5 in a state where the opening of the storage body 4 is closed by the inspection door 5. The cradle 70 is provided with a rising surface 71 that rises and inclines from the inspection door 5 side toward the storage body 4 side, and is connected to the rising surface 71 and the storage body 4 side, and from the inspection door 5 side to the storage body 4 side. And a descending surface 72 inclined downward. The cradle 70 is configured so that the rising surface 71 and the lowering surface 72 are opposed to the connecting surface 42b on the other side in the vehicle height direction (upper side in FIG. 2B). It is attached to the convex side.

  The inspection door 5 is a member for opening and closing the opening of the storage body 4, and one side in the longitudinal direction (left side in FIG. 2B) of the inspection door 5 is connected to the transport vehicle 100 via two hinges 6. It is supported by an extending portion 42 disposed on one side in the vehicle width direction (the rear side in FIG. 2B in the direction perpendicular to the paper surface). The inspection door 5 is erected from a rectangular flat plate portion 51 and from the end of each side of the flat plate portion 51 to the side facing the storage body 4 (the front side in the vertical direction in FIG. 2B). The four side plate portions 52 are configured.

  A side plate portion 52 erected on one side in the longitudinal direction of the flat plate portion 51 (left side in FIG. 2B) is connected to the extending portion 42 via a hinge 6. Further, the flat plate portion 51 is a portion that is in contact with the packing 43 in a state in which the opening of the storage body 4 is closed by the inspection door 5, and is on the other side in the longitudinal direction of the flat plate portion 51 on the surface facing the storage body 4. A contact member 80 attached to the right side (FIG. 2B) is provided.

  The abutting member 80 is a member that abuts on the cradle 70 in a state where the storage body 4 is closed by the inspection door 5. The contact member 80 includes a plate-like holding member 81 attached to the inspection door 5 and a rolling member 82 that is held by the holding member 81 so as to be able to roll. The holding member 81 holds the rolling member 82 at a position where the distance dimension from the rolling member 82 to the one hinge 6 is equal to the distance dimension from the receiving base 70 to the one hinge 6. Further, the holding member 81 has a distance dimension from the axle that pivotally supports the rolling member 82 so as to be able to roll to the surface facing the storage body 4 of the inspection door 5 so that the opening of the storage body 4 is closed by the inspection door 5. In this state, the distance between the end of the descending surface 72 on the inspection door 5 side (the right side in FIG. 2B) and the surface of the inspection door 5 facing the housing 4 is larger than the distance 4. The rolling member 82 is held at a position smaller than the distance dimension from the end portion on the side (left side in FIG. 2B) to the surface of the inspection door 5 facing the housing 4. Further, in the holding member 81, the lowermost portion of the rolling member 82 is lower than the position of the end portion of the descending surface 72 on the inspection door 5 side and is higher than the position of the end portion of the descending surface 72 on the storage body 4 side. The rolling member 82 is held at the position. Accordingly, the rolling member 82 can be brought into contact with the descending surface 72 in a state where the opening of the storage body 4 is closed by the inspection door 5.

  Note that the cradle 70 and the contact member 80 are desirably disposed on the other side in the longitudinal direction of the inspection door 5 (the right side in FIG. 2B) rather than the central portion in the longitudinal direction of the inspection door 5. The hinge 6 supports one side in the longitudinal direction of the inspection door 5, while the receiving table 70 supports the other side in the longitudinal direction of the inspection door 5, so that the other side in the longitudinal direction of the inspection door 5 is lowered by the weight of the inspection door 5. The burden on the hinge 6 can be reduced by preventing sinking.

  Further, a flat shelf 51 a is attached to the flat plate portion 51 on the surface facing the storage body 4, and a control device 90 is placed on the shelf 51 a. Thereby, even when a place for arranging the control device 90 on the bottom surface of the storage body 4 cannot be secured, the control device 90 can be stored inside the storage body 4.

  Next, the opening / closing operation | movement of the inspection door 5 is demonstrated with reference to FIG. 3A is a partially enlarged cross-sectional view of the transport vehicle 100 before the storage body 4 is closed by the inspection door 5, and FIG. 3B is a view of the transport in a state where the storage body 4 is closed by the inspection door 5. FIG. 2 is a partially enlarged cross-sectional view of a vehicle 100. 3A and 3B correspond to the cross-sectional view taken along the line IIb-IIb in FIG. 3A and 3B, the storage body 4, the inspection door 5, and the contact member 80 are schematically shown for the sake of simplicity, and the inspection door 5 rotates in the closing direction. At this time, the contact member 80 is illustrated so as to move in parallel, and FIGS. 4A, 4B, 5A, and 5B are similarly illustrated.

  As shown in FIG. 3A, when the inspection door 5 is moved in the closing direction (left side in FIG. 3), the rolling member 82 is raised before the opening of the storage body 4 is completely closed by the inspection door 5. It abuts on the surface 71. At this time, the rising surface 71 is inclined upward from the inspection door 5 side toward the storage body 4 side, and the rising surface 71 is directed toward the inspection door 5 side. Thereby, the rolling member 82 can be easily brought into contact with the rising surface 71, and the rolling member 82 can be easily guided to the receiving base 70.

  As shown in FIG. 3B, when the inspection door 5 is moved in the closing direction in a state where the rolling member 82 is in contact with the rising surface 71, the rolling member 82 rolls on the rising surface 71, When the inspection door 5 is further moved in the closing direction, the rolling member 82 comes into contact with the descending surface 72. At this time, a force for rolling the descending surface 72 is exerted on the rolling member 82, and this force serves to assist the movement of the inspection door 5 in the closing direction. Can be moved to the side. Therefore, the operation of closing the inspection door 5 can be performed with a smaller force. Further, since the inspection door 5 can be reliably moved to the closed position, a state in which the flat plate portion 51 is in close contact with the packing 43 can be reliably formed. Further, even after the flat plate portion 51 is brought into close contact with the packing 43, the packing 43 is pressed against the inspection door 5 because a force is always applied to the inspection door 5 toward the storage body 4. Thereby, the state which sealed the storage body 4 with the inspection door 5 can be maintained reliably.

  Further, in a state where the opening of the storage body 4 is closed by the inspection door 5, the rolling member 82 is in contact with the descending surface 72, so that the rolling member 82 rolls on the descending surface 72. The power to work. As a result, the inspection door 5 is constantly attracted to the storage body 4 due to the weight of the inspection door 5 and the control device 90, so that the inspection door 5 is stored against vibrations generated when the transport vehicle 100 travels. The body 4 and the inspection door 5 can be displaced in the same direction in an integrated state, and displacement of the inspection door 5 relative to the storage body 4 can be suppressed. Therefore, the burden of the hinge 6 by supporting the inspection door 5 can be reduced, and as a result, damage to the hinge 6 can be prevented.

  Further, in a state where the opening of the storage body 4 is closed by the inspection door 5, a force is always applied to the inspection door 5 to attract the storage body 4, so that, for example, the inspection door 5 stores the inspection door 5. Even when the operator forgets to lock the inspection door 5 when the storage body 4 is closed by the inspection door 5 when the locking mechanism for fixing to the body 4 is provided, the transport vehicle 100 It is possible to suppress the inspection door 5 from moving in the opening direction during traveling.

  Next, with reference to FIG. 4, the conveyance vehicle 200 in 2nd Embodiment of this invention is demonstrated. In the first embodiment, the case has been described in which the cradle 70 is attached to the extended portion 42 of the storage body 4 and the contact member 80 is attached to the flat plate portion 51 of the inspection door 5. In the second embodiment, the contact member 180 is attached to the extended portion 42 of the storage body 4, and the cradle 170 is attached to the flat plate portion 51 of the inspection door 5. In addition, the same code | symbol is attached | subjected about the part same as 1st Embodiment, and the description is abbreviate | omitted.

  FIGS. 4A and 4B are partially enlarged cross-sectional views of the transport vehicle 200 according to the second embodiment of the present invention. FIG. 4A is a view before the storage body 4 is closed by the inspection door 5. FIG. 4B shows a state where the storage body 4 is closed by the inspection door 5.

  As shown in FIG. 4A, the extending portion 42 is formed on the convex side of the connecting wall 42b constituting the extending portion 42 on one side in the vehicle height direction (lower side in FIG. 4A). The contact member 180 is attached to the inner wall surface side, and the contact member 180 rolls to the plate-like holding member 181 attached to the convex side of the continuous wall 42b and the holding member 181. And a rolling member 182 that can be held.

  The flat plate portion 51 of the inspection door 5 is provided with a cradle 170 that is attached to the other side in the longitudinal direction of the flat plate portion 51 and formed from a plate-like member on the surface facing the storage body 4. The cradle 170 is connected to the ascending surface 171 that rises and inclines from the inspection door 5 side toward the housing body 4 side, and is connected to the ascending surface 171 and the inspection door 5 side and from the inspection door 5 side to the housing body 4 side. And a descending surface 172 that inclines downward.

  The holding member 181 holds the rolling member 182 at a position where the distance dimension from the rolling member 182 to the one hinge 6 is equal to the distance dimension from the receiving base 170 to the one hinge 6. Further, the holding member 181 has a distance dimension from the axle that pivotally supports the rolling member 182 to the surface facing the storage body 4 of the inspection door 5 so that the opening of the storage body 4 is closed by the inspection door 5. In this state, the rolling member 182 is held at a position smaller than the distance dimension from the end of the descending surface 172 on the storage body 4 side (left side in FIG. 4A) to the surface of the inspection door 5 with respect to the storage body 4. ing. Further, in the holding member 181, the uppermost part of the rolling member 182 is lower than the position of the end of the descending surface 172 on the inspection door 5 side and is higher than the position of the end of the descending surface 171 on the storage body 4 side. The rolling member 182 is held at the position. Accordingly, the rolling member 182 can be brought into contact with the descending surface 172 in a state where the opening of the storage body 4 is closed by the inspection door 5.

  When closing the storage body 4 with the inspection door 5, if the inspection door 5 is moved in the closing direction (left side in FIG. 4A), the inspection body 5 rises before the opening of the storage body 4 is completely closed. The surface 171 contacts the rolling member 182. At this time, the rising surface 171 is inclined upward from the inspection door 5 side toward the storage body 4 side, and the rising surface 171 is directed toward the storage body 4 side. Thereby, the rising surface 171 can be easily brought into contact with the rolling member 182, and the rising surface 171 can be easily guided to the rolling member 182.

As shown in FIG. 4B, in the state where the rising surface 171 is in contact with the rolling member 182,
When the inspection door 5 is further moved in the closing direction (left side in FIG. 4B), the rolling member 182 rolls on the rising surface 171, and when the inspection door 5 is further moved in the closing direction, the rolling member. 182 contacts the descending surface 172. At this time, on the descending surface 172, a force that moves toward the storage body 4 by the rolling of the rolling member 182 works, and the force plays an auxiliary role of moving the inspection door 5 in the closing direction. The inspection door 5 can be urged to move toward the housing 4 by its own weight, and the flat plate portion 51 can be brought into close contact with the packing 43. Further, even when the opening of the storage body 4 is closed by the inspection door 5, a force that always tries to pull the inspection door 5 toward the storage body 4 works, so that the packing 43 is pressed against the inspection door 5. Thereby, the storage body 4 can be reliably sealed.

  Further, in the state where the opening of the storage body 4 is closed by the inspection door 5, the lowering surface 172 is in contact with the rolling member 182, so that the lowering surface 172 is stored by the rolling of the rolling member 182. The force which moves to the body 4 side works. Thereby, since the force which always tries to be attracted to the container 4 side is applied to the inspection door 5 due to the weight of the inspection door 5, vibration of the inspection door 5 generated when the transport vehicle 200 travels is suppressed. Can do. Therefore, the burden of the hinge 6 by supporting the inspection door 5 can be reduced, and as a result, damage to the hinge 6 can be prevented.

  Further, in the state where the opening of the storage body 4 is closed by the inspection door 5, a force is always applied to the inspection door 5 so as to attract the storage body 4, so that, for example, the inspection door 5 attaches the inspection door 5 to the storage body 4. Even when the operator forgets to lock the inspection door 5 when the storage body 4 is closed by the inspection door 5 in the case where the locking mechanism for fixing the inspection door 5 is provided, the transport vehicle 200 is running. It is possible to suppress the inspection door 5 from moving in the opening direction.

  Next, with reference to FIG. 5, the conveyance vehicle 300 in the 3rd Embodiment of this invention is demonstrated. In the first embodiment, the pedestal 70 is attached to the extending portion 42 on one side in the vehicle height direction, whereas in the third embodiment, the receiving portion 42 is received on the extending portion 42 on the one side in the vehicle height direction. While the base 70 is attached, the receiving base 270 is attached to the extending portion 42 on the other side in the vehicle height direction. In addition, the same code | symbol is attached | subjected about the part same as 1st Embodiment, and the description is abbreviate | omitted.

  FIGS. 5A and 5B are partially enlarged cross-sectional views of the transport vehicle 300 according to the third embodiment of the present invention. FIG. 5A is a view before the storage body 4 is closed by the inspection door 5. FIG. 5B shows a state where the storage body 4 is closed by the inspection door 5.

  As shown in FIG. 5 (a), the convex side (inner wall surface of the storage body 4) of the continuous wall 42b constituting the extending portion 42 on one side in the vehicle height direction of the storage body 4 (lower side in FIG. 5 (a)). Side) and the other side in the vehicle height direction (upper side in FIG. 5 (a)), the convex wall side (inner wall surface side of the storage body 4) of the continuous wall 42b constituting the extending portion 42 is formed of a plate-like member. Receiving bases 70 and 270 are respectively attached. The cradle 270 is formed by a plate-like member, and is provided with a rising surface 271 that rises and inclines from the end on the inspection door 5 side toward the storage body 4 side, and is connected to the rising surface 271 and the storage body 4 side. In addition, a descending surface 272 that inclines downward from the inspection door 5 side toward the storage body 4 side is provided, and the connecting portion between the ascending surface 271 and the descending surface 272 is smoothly connected in a curved shape. The descending surface 272 side of the cradle 270 extends from the end of the descending surface 272 on the container 4 side toward the extending portion 42 on the other side, and is attached to the extending portion 42 on the other side. Yes. Further, the end of the cradle 270 on the rising surface 271 side is a free end directed toward the inspection door 5 side.

  The flat plate portion 51 of the inspection door 5 includes contact members 80 and 280 attached to the other side in the longitudinal direction of the flat plate portion 51 on the surface facing the housing body 4. The contact member 280 is a member that contacts the receiving base 270 when the inspection door 5 opens or closes the opening of the storage body 4. The contact member 280 includes a plate-like holding member 281 attached to the inspection door 5 and a rolling member 282 that is held by the holding member 281 so as to be able to roll.

  The holding member 281 holds the rolling member 282 at a position where the distance dimension from the rolling member 282 to the one hinge 6 is equal to the distance dimension from the receiving base 270 to the one hinge 6. The holding member 281 has a distance dimension from the axle that pivotally supports the rolling member 282 so as to be able to roll to the surface of the inspection door 5 that faces the storage body 4, and the inspection door 5 closes the opening of the storage body 4. In this state, the distance between the end of the descending surface 272 on the inspection door 5 side (the right side in FIG. 5 (a)) and the surface of the inspection door 5 facing the housing 4 is larger than the distance between the housing 4 and the descending surface 272. The rolling member 282 is held at a position smaller than the distance dimension from the end portion on the side (left side in FIG. 5 (a)) to the surface of the inspection door 5 facing the housing 4. Further, in the holding member 281, the lowermost part of the rolling member 282 is lower than the position of the end of the descending surface 272 on the inspection door 5 side and is higher than the position of the end of the descending surface 272 on the storage body 4 side. The rolling member 282 is held at the position. Accordingly, the rolling member 282 can be brought into contact with the descending surface 272 in a state where the opening of the storage body 4 is closed by the inspection door 5.

  When the inspection door 5 is moved in the closing direction (left side in FIG. 5 (a)), the rolling members 82 and 282 are moved to the rising surfaces 71 and 271 before the opening of the storage body 4 is completely closed by the inspection door 5. Abut. At this time, the rising surfaces 71 and 271 are inclined upward from the inspection door 5 side toward the storage body 4 side, and the rising surfaces 71 and 271 are directed to the inspection door 5 side. Accordingly, the rising surfaces 71 and 271 can be easily brought into contact with the rolling members 82 and 282, and the rising surfaces 71 and 271 can be easily guided to the rolling members 82 and 282.

  As shown in FIG. 5B, in a state where the rolling members 82 and 282 are in contact with the rising surfaces 71 and 271, when the inspection door 5 is further moved in the closing direction (left side in FIG. 4B), When the rolling members 82 and 282 roll on the rising surfaces 71 and 271 and further move the inspection door 5 in the closing direction, the rolling members 82 and 282 come into contact with the descending surfaces 72 and 272. At this time, a force for rolling the descending surfaces 72 and 272 acts on the rolling members 82 and 282, and the force serves to assist in moving the inspection door 5 in the closing direction. Thus, the flat plate portion 51 can be brought into close contact with the packing 43 while being urged to move toward the storage body 4 side. Furthermore, since the force which attracts the inspection door 5 to the storage body 4 side works, the packing 43 is pressed by the inspection door 5. In particular, in the present embodiment, since the flat plate portion 51 includes the two rolling members 82 and 282, the storage body 4 can be more reliably sealed.

  Further, since the rolling members 82 and 282 are in contact with the descending surfaces 72 and 272 in a state where the opening of the storage body 4 is closed by the inspection door 5, the rolling members 82 and 282 include the descending surface. The force which rolls 72,272 works. As a result, a force is always applied to the inspection door 5 to attract the inspection door 5 toward the container 4 due to the weight of the inspection door 5, so that the inspection door 5 generated when the transport vehicle 300 travels is applied. Vibration can be suppressed. In particular, in the present embodiment, since the inspection door 5 is supported by the two hinges 6 and the two pedestals 70 and 270, the burden on the hinges 6 by supporting the inspection door 5 is more effectively reduced. As a result, damage to the hinge 6 can be prevented.

  Further, in the state where the opening of the storage body 4 is closed by the inspection door 5, a force is always applied to attract the inspection door 5 to the storage body 4 side. Even when the operator forgets to lock the inspection door 5 when the storage body 4 is closed by the inspection door 5 in the case where the locking mechanism for fixing to the inspection door 5 is provided, the traveling of the transport vehicle 300 is performed. It is possible to prevent the inspection door 5 from moving in the opening direction.

  The present invention has been described above based on the embodiments. However, the present invention is not limited to the above embodiments, and various improvements and modifications can be made without departing from the spirit of the present invention. It can be easily guessed.

  For example, the hinge 6 may support the inspection door 5 so as to be movable in the vertical direction (vehicle height direction). As a result, when the rolling members 82, 182, 282 come into contact with the cradle 70, 170, 270, the inspection door 5 is moved while the inspection door 5 is lifted, thereby making it easier to open and close the inspection door 5. be able to.

  In each of the above embodiments, the case where the present invention is used for the door structure of the control panel 1 has been described. However, the present invention is not necessarily limited thereto, and the present invention is provided in a box body in which a drive device and the like are stored. It may be used for the door structure of the inspection port.

  Further, in each of the above embodiments, the case where the packing 43 is covered on the outer wall surface of the facing wall 42a2 of the storage body 4 has been described. However, the present invention is not necessarily limited to this, and the packing 43 is a flat plate of the inspection door 5. The part 51 may be covered.

  Further, in each of the above embodiments, the case where the connecting portions of the rising surfaces 71 and 171 and the falling surfaces 72 and 172 have a shape in which straight lines are directly connected to each other has been described. However, the present invention is not necessarily limited thereto. Of course, the connecting portions of the rising surfaces 71, 171 and the falling surfaces 72, 172 can be smoothly connected in a curved shape.

  In the above embodiment, the cradle 70, 170, 270 includes the rising surfaces 71, 171, 271 and the descending surfaces 72, 172, 272, and the descending surfaces 72, 172, 272 are formed at a constant inclination angle. However, the present invention is not necessarily limited to this, and other configurations are naturally possible. Here, with reference to FIG. 6, the modification which is the other structure of a receiving stand is demonstrated. 6 (a) to 6 (f) are partial enlarged cross-sectional views of the cradles 370, 470, 570, 670, 770, 870 and the abutting member 80 in the modified example, and IIb- of FIG. 2 (a). This corresponds to a cross-sectional view taken along line IIb. In addition, the same code | symbol is attached | subjected about the part same as 1st Embodiment, and the description is abbreviate | omitted.

  As shown in FIG. 6A, the cradle 370 is connected to the rising surface 71, the rising surface 71 and the storage body 4 side, and is inclined downward from the inspection door 5 side to the storage body 4 side. The descending surface 372 is connected to the first descending surface 372a, the end of the first descending surface 372a on the inspection door 5 side, and the end of the ascending surface 71 on the storage body 4 side. And a continuous surface 372b. Further, the connecting portion 372b is formed at an inclination angle of 90 degrees with respect to the ground.

  In this case, even when the inspection door 5 is moved in the opening direction (right side in FIG. 6A) due to the vibration of the inspection door 5 in a state where the rolling member 82 is in contact with the first descending surface 372a, When the rolling member 82 abuts on the continuous surface 372b having an inclination angle of 90 degrees with respect to the ground, it is possible to more reliably suppress the rolling member 82 from moving toward the rising surface 71.

  As shown in FIG. 6B, the cradle 470 is connected to the rising surface 71, the rising surface 71 and the storage body 4 side, and is inclined downward from the inspection door 5 side to the storage body 4 side. The descending surface 472 is connected to the first descending surface 472a, the end of the first descending surface 472a on the inspection door 5 side, and the end of the ascending surface 71 on the container 4 side. A second descending surface 472b. Further, the second descending surface 472b has a larger inclination angle with respect to the ground than the first descending surface 472a, and the inclination angle with respect to the ground is less than 90 degrees.

  In this case, even when the inspection door 5 moves in the opening direction (right side in FIG. 6B) due to vibration of the inspection door 5 in a state where the rolling member 82 is in contact with the first descending surface 472a, Since the rolling member 82 contacts the second descending surface 472b having a larger inclination angle with respect to the ground than the first descending surface 472a, it is possible to more reliably suppress the rolling member 82 from moving to the ascending surface 71 side. Moreover, compared with the case where the inclination angle of the second descending surface 472b with respect to the ground is 90 degrees, the impact when the rolling member 82 contacts the second descending surface 472b can be reduced.

  As shown in FIG. 6C, the cradle 570 is connected to the rising surface 71, the rising surface 71 and the storage body 4 side, and tilts downward from the inspection door 5 side toward the storage body 4 side. The descending surface 572 is connected to the first descending surface 572a, the end of the first descending surface 572a on the inspection door 5 side, and the end of the ascending surface 71 on the container 4 side. A third descending surface 572b. Further, the third descending surface 572b is formed with a smaller angle of inclination with respect to the ground than the first descending surface 572a.

  In this case, when the inspection door 5 is opened with the rolling member 82 in contact with the first descending surface 572a, the rolling member 82 is grounded from the first descending surface 572a to the ground than the first descending surface 572a. The force required to open the inspection door 5 can be reduced by moving to the third descending surface 572b having a small inclination angle with respect to. Therefore, compared with the case where the descending surface 572 includes only the first descending surface 572a, the inspection door 5 is prevented from moving in the opening direction (right direction in FIG. 6 (c)) by the first descending surface 572a. When opening 5, the inspection door 5 can be opened with a small force. Further, in the initial stage when the inspection door 5 is closed, the rolling member 82 rolls on the third descending surface 572b, so that the rolling member is compared with the case where the descending surface 572 is only the first descending surface 572a. The force which 82 tries to roll to the container 4 side can be suppressed. Therefore, since the inspection door 5 can be moved slowly in the closing direction (the left direction in FIG. 6C), the impact when closing the inspection door 5 can be reduced.

  As shown in FIG. 6D, the cradle 670 includes a descending surface 672 that inclines downward from the inspection door 5 side toward the housing body 4 side. The descending surface 672 is formed with a constant inclination angle with respect to the ground from the end on the inspection door 5 side to the end on the storage body 4 side. In this case, since the shape of the cradle 670 is simplified, the manufacturing cost of the cradle 670 can be reduced.

  As shown in FIG. 6E, the cradle 770 includes a rising surface 71 and a falling surface 772. The descending surface 772 has a gradually decreasing inclination angle with respect to the ground as it goes from the storage body 4 side to the inspection door 5 side.

  In this case, when the inspection door 5 is opened with the rolling member 82 in contact with the descending surface 772, the rolling member 82 contacts as the rolling member 82 rolls toward the inspection door 5 side. Since the inclination angle of the descending surface 772 with respect to the ground is gradually reduced, the force required to open the inspection door 5 is gradually reduced as the inspection door 5 is moved in the opening direction (left direction in FIG. 6 (e)). Can be made. Therefore, compared with the case where the descending surface 772 is formed at a constant inclination angle, the force required to move the inspection door 5 in the opening direction can be reduced. On the other hand, when the inspection door 5 is closed, the rolling member 82 in contact with the descending surface 772 can gradually increase the force of rolling toward the storage body 4 side. Even if it is large, the inspection door 5 can be moved slowly in the closing direction (right direction in FIG. 6 (e)), and the impact when closing the inspection door 5 can be reduced. Further, in the state where the inspection door 5 closes the opening of the storage body 4, the rolling member 82 can be brought into contact with the descending surface 772 on the storage body 4 side where the inclination angle with respect to the ground becomes large. It is possible to suppress the movement of 5 in the opening direction.

  As shown in FIG. 6 (f), the cradle 870 includes a rising surface 71 and a falling surface 872. The descending surface 872 gradually increases in inclination angle with respect to the ground as it goes from the storage body 4 side to the inspection door 5 side.

  In this case, even when the rolling member 82 rolls toward the inspection door 5 due to the vibration of the inspection door 5 with the rolling member 82 in contact with the descending surface 872, the rolling member 82 rolls. Since the inclination angle of the moving descending surface 872 with respect to the ground gradually increases from the storage body 4 side toward the inspection door 5 side, the rolling member 82 is reliably prevented from moving toward the ascending surface 71 side. it can. Therefore, it can suppress reliably that the inspection door 5 moves to an open direction (FIG.6 (f) right direction).

  Further, in each of the above embodiments, the pedestals 70, 170, 270, 370, 470, 570, 770, 870 are the rising surfaces 71, 171, 271 that are inclined upward from the inspection door 5 side toward the storage body 4 side. And descending surfaces 72, 172, 272, 372, 472, 572 that are connected to the ascending surfaces 71, 171, 271 and the storage body 4 side and are inclined downward from the inspection door 5 side toward the storage body 4 side. However, the present invention is not necessarily limited to this, and the rising surfaces 71, 171 and 271 may be formed in parallel to the ground. Thereby, when the rolling members 82, 182, and 282 roll on the rising surface, it is possible to avoid the rolling members 82, 182, and 282 from rolling toward the inspection door 5, so that the rising surface is inspected. Compared with the case of rising and tilting from the door 5 side toward the storage body 4 side, the force required when moving the inspection door 5 in the closing direction can be reduced.

  In addition, it is naturally possible to configure another cradle by combining some or all of the cradle configurations described in the above embodiments and modifications.

100, 200, 300 Transport vehicle 1 Control panel (box)
4 Storage body 5 Inspection door 6 Hinge (supporting member)
70, 170, 270, 370, 470, 570, 670, 770, 870 Receiving base 72, 172, 272, 372, 472, 572, 672, 772, 872 Lowering surface 372a, 472a, 572a First lowering surface 372b Surface (second descending surface)
472b Second descending surface 572b Third descending surface 80, 180, 280 Contact member 81, 181, 281 Holding member 82, 182, 282 Rolling member

Claims (3)

In a transport vehicle including a box-shaped storage body that opens on one side, an inspection door that opens and closes the opening of the storage body, and a support body that rotatably supports the inspection door.
A holding member attached to any one of an inner wall surface of the storage body or a surface of the inspection door facing the storage body, and a contact member having a rolling member that is rotatably held by the holding member; And a lower surface that is attached to either the inner wall surface of the storage body or the surface of the inspection door that faces the storage body and that is inclined downward toward the ground side from the inspection door side toward the storage body side. With a cradle,
The transport vehicle, wherein the rolling member is in contact with the descending surface in a state where the opening of the storage body is closed by the inspection door. The descending surface includes a first descending surface and a second descending surface that is connected to an end of the first descending surface on the inspection door side and has a larger inclination angle with respect to the ground than the first descending surface. ,
2. The transport vehicle according to claim 1, wherein the rolling member is in contact with the first descending surface in a state where the opening of the storage body is closed by the inspection door. The descending surface includes a first descending surface and a third descending surface that is connected to an end of the first descending surface on the inspection door side and has a smaller inclination angle with respect to the ground than the first descending surface. ,
2. The transport vehicle according to claim 1, wherein the rolling member is in contact with the first descending surface in a state where the opening of the storage body is closed by the inspection door.

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