JP2016215806A - Container handling vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a container handling vehicle comprising an inexpensive and simplified lashing device for lashing a container to a support frame during tilt of the container.SOLUTION: A lashing device 60 comprises: engagement means 65 disposed on a support frame 10 and movable between an engagement position where it engages with a container 2, and a non-engagement position; energization means 68 connected to the engagement means 65 and the support frame 10, and energizes the engagement means 65 to the engagement position; and a contact member 69 disposed on a sub chassis 13, and contacts the engagement means 65 when the support frame 10 is in a horizontal state, for holding the engagement means 65 at the non-engagement position. When the support frame 10 is tilted, the engagement means 65 is separated from the contact member 69 and moves toward the engagement position by the energization force of the energization means 68.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a container handling vehicle capable of loading, unloading, and tilting containers.

  Conventionally, a container handling vehicle capable of loading, unloading and tilting a container is known. The container handling vehicle includes a support frame that supports the container, and the support frame includes a dump frame whose rear end portion is supported to be tiltable to the chassis, and a cargo handling arm that is rotatably connected to the front end portion of the dump frame. Composed. In addition, the container handling vehicle includes a dump cylinder that tilts the support frame. The front end portion of the dump cylinder is connected to the front portion of the chassis, and the rear end portion is connected to the support frame.

  When tilting the container, the dump cylinder is extended. Then, the support frame tilts, and the container supported by the support frame also tilts.

  By the way, in the container handling vehicle, the container is not always fixed to the support frame so that the container can be lowered from the chassis, and is configured to be separated from the support frame. However, if the container can be separated from the support frame when the container is tilted, the rear portion of the container may be lifted from the support frame when the tilt angle is increased.

  Therefore, conventionally, a hydraulic lashing device for tying the container to the support frame when tilting is provided, and when the container is tilted, the lashing device is driven to tie the container to the dump frame (for example, Patent Documents). 1).

JP 2003-89324 A

  However, the hydraulic lashing device is expensive and has a complicated structure. Therefore, in the conventional container handling vehicle, there is a problem that the cost is increased and the structure is complicated by providing a hydraulic lashing device as a lashing device for tying the container to the support frame when tilting. .

  The present invention has been made in view of the above points, and an object thereof is to provide a container handling vehicle equipped with an inexpensive and simple lashing device as a lashing device for tying the container to a support frame when the container is tilted. It is to be.

  A container handling vehicle according to the present invention includes a chassis, a support frame that extends in the vehicle front-rear direction and has a rear portion that is tiltably supported by the chassis, a container that is supported by the support frame, and a front end that is coupled to the chassis. A dump cylinder that tilts the support frame by extending and contracting, and a lock that secures the container to the support frame when the support frame tilts. A binding device. The lashing device is provided on the support frame and is movable between an engagement position that engages with the container and a non-engagement position that does not engage the container; and An urging means for urging the engagement means toward the engagement position; and a first linking part connected to the support frame; and a biasing means for urging the engagement means toward the engagement position; A contact member that keeps the engagement means in the non-engagement position by contacting the engagement means when the support frame is in a horizontal state, and when the support frame is tilted, The combination means is configured to move away from the contact member and move to the engagement position by the urging force of the urging means.

  According to the container handling vehicle, when the support frame is tilted, the engaging means is separated from the contact member, and the engaging means is moved to the engaging position by the urging force of the urging means. As a result, the container engages with the engaging means provided on the support frame and is secured to the support frame. Therefore, it is possible to prevent the rear portion of the container from floating from the support frame when the container is tilted. On the other hand, when the support frame is returned to the horizontal state, the engagement means comes into contact with the contact member and receives a force from the contact member, so that the engagement position is changed from the engagement position to the non-engagement position. Moving. As a result, the container is unlocked. Therefore, the container can be lowered from the chassis. Thus, according to the container handling vehicle, a hydraulic lashing device is unnecessary, and the lashing of the container and its release are performed in conjunction with the tilting of the support frame by an inexpensive and simple lashing device. Can do.

  According to a preferred aspect of the present invention, the engaging means includes a rotating shaft supported by the support frame, and an engaging member rotatably supported by the rotating shaft. The engaging member includes a hook portion that can be engaged with the container, a connecting portion that is connected to the first connecting portion of the urging means, and a cam portion that can contact the contact member. When the support frame shifts from the tilted state to the horizontal state, the cam portion is pushed up by the contact member, so that the hook portion moves to the non-engagement position, and the support frame tilts from the horizontal state. When shifting to the state, the cam portion is separated from the contact member, and the hook portion is moved to the engagement position.

  According to the said aspect, the said lashing apparatus can be comprised cheaply and simply.

  According to another preferred aspect of the present invention, the pivot shaft of the engaging means is disposed in parallel with the support frame. The container is provided so as to extend in the vehicle front-rear direction on a side portion of the container frame, a container frame extending in the vehicle front-rear direction provided at a lower portion of the container main body, and And an engaging arm that engages with the hook portion of the engaging means.

  Thereby, an inexpensive and simple container can be obtained in which the engagement with the engagement member and the release thereof are favorably performed.

  According to another preferable aspect of the present invention, the hook is provided on the support frame and disposed at a position where the engagement member contacts the engagement member when the engagement member moves to the engagement position. A stopper for restricting the rotation of the engaging member is provided so as not to contact the container frame.

  According to the above aspect, since the hook portion does not contact the container frame when the engaging member moves to the engaging position, the container frame can be prevented from being damaged by the engaging member.

  According to another preferable aspect of the present invention, the support frame includes a dump frame having a rear portion supported by the chassis so as to be tiltable, a pivot frame coupled to the front portion of the dump frame, and the engagement with the container. And a load handling arm that can be combined. The front end of the engagement arm is located behind the intermediate position of the container body in the vehicle front-rear direction.

  According to the said aspect, loading and unloading of a container can be performed when a cargo handling arm rotates with respect to a dump frame. Since the engagement arm is arranged at the rear part of the container main body, it is difficult to get in the way when the container is loaded and unloaded. According to the said aspect, the suitable one aspect | mode of an engagement arm can be provided.

  According to another preferable aspect of the present invention, the support frame is configured to be extendable. The container handling vehicle is further provided with a first engagement member provided on the support frame and with the first engagement member when the container moves forward as the support frame expands and contracts. And a second engagement member that is disengaged from the first engagement member when the container moves rearward as the support frame expands and contracts. The dump cylinder is configured to tilt the support frame when the engagement between the first engagement member and the second engagement member is released.

  According to the above aspect, the container can be secured by the first engagement member and the second engagement member by moving the container forward during traveling of the container handling vehicle. Therefore, it is possible to prevent the container from floating during traveling. On the other hand, when the support frame is tilted, the first engagement member and the second engagement member are disengaged, so that the rear portion of the container may be lifted without the securing device. Therefore, the necessity of the lashing device is high, and the above-described effects are remarkably exhibited.

  ADVANTAGE OF THE INVENTION According to this invention, the container handling vehicle provided with the cheap and simple lashing device can be provided as a lashing device which ties a container to a support frame at the time of tilting of a container.

It is a figure showing operation | movement of the container handling vehicle at the time of loading and unloading a container. It is a top view of the cargo handling apparatus of a container handling vehicle. It is a side view of the principal part of a container handling vehicle. It is a side view of the principal part of a container handling vehicle when moving a container back. It is a side view of the principal part of a container handling vehicle when tilting a container. It is the figure which looked at the container tying device at the time of left tilt from the vehicle back, and is a figure corresponding to the VI-VI line section of FIG. It is the figure which looked at the container securing apparatus at the time of the left tilt from the vehicle rear, and is a figure corresponding to the VII-VII line section of FIG. It is a top view of the container lashing device at the time of tilting on the left. It is a left view of the container securing apparatus at the time of tilting to the left.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 shows a container handling vehicle 1 according to this embodiment. The container handling vehicle 1 includes a cargo handling device 3 that performs the tilting, loading, and unloading operations of the container 2. The phantom lines in FIG. 1 represent the operation of the container handling vehicle 1 when loading and unloading the container 2.

(Construction of container handling vehicle)
The container handling vehicle 1 includes a pair of left and right body frames 11 extending in the vehicle front-rear direction, and a cab 12 disposed on the front end of the body frame 11. In the following description, front, rear, left, right, upper, and lower refer to front, rear, left, right, upper, and lower, respectively, as viewed from a passenger (not shown) in the cab 12 unless otherwise specified. Shall. On the left and right body frames 11, left and right subchassis 13 are respectively arranged. Each subchassis 13 extends in the front-rear direction. As shown in FIG. 2, the front end portions of the left and right subchassis 13 are connected by a front cross member 15. The rear ends of the left and right subchassis 13 are connected by a rear cross member 17. The body frame 11, the subchassis 13, the front cross member 15, and the rear cross member 17 constitute a “chassis”.

  The container 2 is supported by the left and right subchassis 13. As shown in FIG. 3, the container 2 includes a box-shaped container main body 2m for storing the contents, and a container frame 2k provided in the lower part of the container main body 2m and extending in the front-rear direction. In the present embodiment, the container body 2m is formed in a rectangular parallelepiped shape in which the length in the front-rear direction is longer than the length in the left-right direction and the length in the vertical direction. However, the shape of the container 2 described here is only an example, and the shape of the container according to the present invention is not particularly limited. On the upper part of the front wall 2f of the container main body 2m, an engagement pin 22 that can be engaged with a hook 38c of a cargo handling arm 34 described later is provided. Although illustration is omitted, the upper end portion of the rear wall 2b of the container main body 2m is rotatably supported by an axis extending in the vehicle width direction. The vehicle width direction is synonymous with the left-right direction. An opening (not shown) is formed at the rear end of the container body 2m, and the opening is opened and closed by the rear wall 2b rotating around the axis.

(Handling device)
As shown in FIG. 2, the cargo handling device 3 includes a pair of left and right dump frames 30 and a cargo handling arm 34. The dump frame 30 and the cargo handling arm 34 constitute the support frame 10. The cargo handling device 3 further includes a pair of left and right dump cylinders 35 and an extension cylinder 39.

  A rotation shaft 31 extending in the vehicle width direction is provided at the rear end portion of the sub chassis 13. A rear end portion of the dump frame 30 is rotatably attached to the rotation shaft 31. Therefore, the rear end portion of the dump frame 30 is supported by the subchassis 13 via the rotation shaft 31 so as to be tiltable. The dump frame 30 can be tilted with respect to the sub chassis 13. A rotation shaft 32 extending in the vehicle width direction is provided at the front portion of the dump frame 30. In addition, in this specification, the front part of a member means a part ahead of the middle position in the front-rear direction of the member, and the rear part of the member means a part behind the middle position in the front-rear direction of the member. Say.

  The cargo handling arm 34 includes a rotating arm 37 and a hook arm 38 slidably connected to the rotating arm 37. As the hook arm 38 slides, the cargo handling arm 34 expands and contracts. Therefore, the support frame 10 is configured to be extendable. The rear portion of the rotation arm 37 is connected to the front portion of the dump frame 30 via the rotation shaft 32. The rotation arm 37 is rotatably supported on the rotation shaft 32 and is rotatable with respect to the dump frame 30. As shown in FIG. 3, the hook arm 38 is formed in an L shape when viewed from the side. The base portion of the hook arm 38 is slidably inserted into the rotation arm 37. A hook 38 c is provided at the tip of the hook arm 38.

  Although illustration is omitted, the cargo handling device 3 includes a cargo handling arm securing device that secures the cargo handling arm 34 to the dump frame 30 so that the cargo handling arm 34 does not rotate with respect to the dump frame 30. The structure of the cargo handling arm securing device is not limited at all, and various known cargo handling arm securing devices can be used. Since the structure of the cargo handling arm lashing device is well known, its description is omitted here.

  As shown in FIG. 2, a telescopic cylinder 39 extending in the front-rear direction is disposed inside the turning arm 37 and the hook arm 38. The front end of the telescopic cylinder 39 is rotatably connected to a pin 38p formed on the hook arm 38. The rear end portion of the telescopic cylinder 39 is rotatably supported by a pin 37 p formed on the rotating arm 37. In the present embodiment, the telescopic cylinder 39 is constituted by a hydraulic cylinder, but is not particularly limited. When the telescopic cylinder 39 contracts, the hook arm 38 slides backward with respect to the rotating arm 37, and the support frame 10 contracts. When the telescopic cylinder 39 extends, the hook arm 38 slides forward with respect to the rotating arm 37, and the support frame 10 extends.

  The dump cylinder 35 is provided on each of the left and right sides of the cargo handling arm 34. In the present embodiment, the dump cylinder 35 is constituted by a hydraulic cylinder. However, the dump cylinder 35 is not limited to a hydraulic cylinder, and may be configured by an air cylinder, an electric actuator, or the like. The front end of the dump cylinder 35 is connected to the chassis. In the present embodiment, a pin 15p is provided on the front cross member 15, and the front end portion of the dump cylinder 35 is rotatably connected to the pin 15p of the front cross member 15. The rear end portion of the dump cylinder 35 is connected to the support frame 10. In the present embodiment, the rear end portion of the dump cylinder 35 is rotatably connected to a pin 33 provided on the bracket 37 b of the rotating arm 37. The rear end portion of the dump cylinder 35 is rotatably supported by the rotation arm 37 via the pin 33.

  A guide roller 16 is provided at the rear end of the sub chassis 13. The guide roller 16 is a roller that guides the container 2 in the front-rear direction when the container 2 is loaded and when the container 2 is lowered.

(Container lashing device)
The cargo handling device 3 includes a container lashing device 50 (see FIG. 3) that prevents the container 2 from jumping up during traveling. Next, the container lashing device 50 will be described.

  As shown in FIG. 3, the rotary arm 30 is provided with a first engagement member 51. In the present embodiment, the first engaging member 51 is formed in a gate shape and protrudes upward from the rotating arm 30. That is, the first engagement member 51 includes a left plate and a right plate that extend upward from the rotation arm 30, and a top plate that spans between the left plate and the right plate. A pair of left and right second engaging members 52 are provided on the bottom wall 2 a of the container 2. The second engagement member 52 is formed in a shape that extends downward from the bottom wall 2a and then protrudes forward. The second engagement member 52 is formed so as to be insertable inside the first engagement member 51, and can be engaged with the first engagement member 51.

  When the container 2 is loaded, the container 2 is pulled forward by the cargo handling arm 34 of the support frame 10. When the container 2 moves forward, the second engagement member 52 of the container 2 is inserted inside the first engagement member 51, and the first engagement member 51 and the second engagement member 52 are engaged. Thereby, the container 2 is secured to the support frame 10, and the container 2 is prevented from jumping up during traveling.

  The shapes of the first engagement member 51 and the second engagement member 52 are merely examples. The first engagement member 51 and the second engagement member 52 need only be engageable with each other, and the shapes thereof are not particularly limited.

  When discharging the contents in the container 2, the container 2 is tilted and the rear wall 2b is opened. In the present embodiment, the container 2 is moved rearward as shown in FIG. 4 before the container 2 is tilted so that the contents discharged from the container 2 are not caught by the rear bumper 53. However, when the container 2 is moved rearward, the engagement between the first engagement member 51 and the second engagement member 52 described above is released. For this reason, when the container 2 is tilted, the lashing by the container lashing device 50 is released. Therefore, when the tilt angle is increased, the rear portion of the container 2 may be lifted from the support frame 10. Therefore, in this embodiment, the container securing device 60 at the time of tilting is provided to prevent the rear part of the container 2 from floating when the container 2 is tilted.

(Container lashing device when tilting)
The container securing device 60 at the time of tilting is configured to secure the container 2 to the support frame 10 when the container 2 is tilted and to release the container 2 from being locked when not tilted. The tilting container lashing device 60 is configured to execute the lashing and the release thereof without using a driving device such as a hydraulic actuator.

  In the present embodiment, a pair of tilting container lashing devices 60 are provided on the left and right. However, at least one container securing device 60 at the time of tilting may be provided, and the number thereof is not limited at all. The left and right tilting container securing devices 60 are formed symmetrically with each other. Hereinafter, the left tilting container securing device 60 will be described with reference to FIGS. 6 to 9, and the description of the right tilting container securing device 60 will be omitted.

  6 and 7 are views of the tilting container securing device 60 as seen from the rear of the vehicle. FIG. 6 corresponds to a cross section taken along line VI-VI in FIG. 4, and FIG. 7 corresponds to a cross section taken along line VII-VII in FIG. As shown in FIG. 6, an engagement arm 2s extending in the vehicle front-rear direction is provided on the side of the container frame 2k. The engagement arm 2s is provided on the left side of the container frame 2k. In other words, the engagement arm 2s is provided outside the container frame 2k in the vehicle width direction. As shown in FIG. 3, the front end 2sa of the engagement arm 2s is located behind the intermediate position of the container body 2m in the vehicle front-rear direction. Since the engaging arm 2s is arranged relatively rearward in this way, the engaging arm 2s is unlikely to get in the way when the container 2 is loaded and unloaded (see FIG. 1).

  FIG. 8 is a plan view of the container securing device 60 during tilting. As shown in FIG. 8, a container guide 70 that extends outward in the vehicle width direction is fixed to the rotating arm 30. The container guide 70 is a part of the support frame 10. As shown in FIGS. 6 and 7, the container guide 70 has a horizontal portion 70a extending outward in the vehicle width direction and a vertical portion 70b extending upward from the tip of the horizontal portion 70a. The vertical portion 70b is disposed outward in the vehicle width direction from the engagement arm 2s, and restricts the engagement arm 2s from moving outward in the vehicle width direction. The container guide 70 serves to guide the container 2 in the vehicle front-rear direction by preventing the container 2 from shifting outward in the vehicle width direction when loading or unloading the container 2.

  The container securing device 60 at the time of tilting includes an engagement member 65 that can be engaged with the engagement arm 2s, a spring 68, and a contact member 69 made of a plate. The engaging member 65 is supported by the support frame 10 (specifically, the container guide 70), and engages with the engaging arm 2s (see FIG. 7) and does not engage with the engaging arm 2s. It is configured to be movable between the engagement positions (see FIG. 6). The spring 68 has a first connecting portion 68a connected to the engaging member 65 and a second connecting portion 68b connected to the container guide 70, and the spring 68 is attached to the engaging position. It is fast. In the present embodiment, the spring 65 is a tension spring and is configured to always pull the engaging member 65. However, the spring 65 may be a compression spring. The spring 65 is not limited to a coil spring, but may be another type of spring such as a torsion spring. The contact member 69 is fixed on the subchassis 13.

  The engagement member 65 includes a hook portion 61 disposed on the outer side in the vehicle width direction than the engagement arm 2s, a rotation shaft 62 that rotatably supports the hook portion 61 on the container guide 70, and a first spring 68. It has the connection part 63 with which the 1 connection part 68a was connected, and the cam part 64 which can contact the contact member 69. FIG. The rotating shaft 62 is disposed in parallel with the support frame 10 (specifically, the dump frame 30). The rotating shaft 62 is arranged to extend in the front-rear direction when the support frame 10 is not tilted, that is, in a horizontal state. The rotation shaft 62 supports the hook portion 61 so as to be rotatable left and right. The connecting portion 63 and the cam portion 64 are disposed on the inner side in the vehicle width direction than the rotation shaft 62. The connecting portion 63 is disposed on the upper side of the cam portion 64.

  As shown in FIG. 7, the container guide 70 is provided with a stopper 67 that restricts the rotation of the engaging member 65. The stopper 67 is disposed at a position where it comes into contact with the engagement member 65 when the engagement member 65 moves to the engagement position. When the engaging member 65 rotates clockwise in FIG. 6 by the force of the spring 68, the engaging member 65 contacts the stopper 67, and the rotation stops. As shown in FIG. 7, the hook portion 61 is not in contact with the container frame 2k. Therefore, the engaging member 65 can be prevented from colliding with the container frame 2k vigorously, and the container frame 2k can be prevented from being damaged by the engaging member 65.

(Tilt movement of container handling vehicle)
Next, the tilting operation of the container handling vehicle 1 will be described. In the container handling vehicle 1 according to the present embodiment, the cargo handling arm 34 is slid rearward by contracting the telescopic cylinder 39 (see FIG. 2) prior to the tilting operation. Then, as shown in FIG. 4, the container 2 is pushed backward by the cargo handling arm 34 and moves backward.

  In the tilting operation, the dump cylinder 35 is extended while the cargo handling arm 34 is secured to the dump frame 30 by the aforementioned cargo handling arm securing device. As shown in FIG. 5, when the dump cylinder 35 extends, the support frame 10, that is, the cargo handling arm 34 and the dump frame 30 tilt, and as a result, the container 2 tilts.

  When the container 2 tilts, the cam portion 64 of the engaging member 65 of the container securing device 60 during tilting moves away from the contact member 69 as shown in FIG. Then, the engagement member 65 is rotated around the rotation shaft 62 by the force of the spring 68, and the hook portion 61 is engaged with the engagement arm 2 s of the container 2. That is, the engagement member 65 moves to the engagement position and engages with the engagement arm 2s. As a result, the upward movement of the engagement arm 2s is restricted by the engagement member 65, so that the rear portion of the container 2 is prevented from being lifted from the support frame 10.

  When the dump cylinder 35 is contracted, the support frame 10, that is, the cargo handling arm 34 and the dump frame 30 return from the inclined state to the horizontal state. At the time of tilting, the engaging member 65 of the container lashing device 60 moves downward, and the cam portion 64 contacts the contact member 69. At this time, the cam portion 64 receives an upward force from the contact member 69. As a result, as shown in FIG. 6, the engaging member 65 rotates around the rotating shaft 62 against the urging force of the spring 68, and the engagement between the hook portion 61 and the engaging arm 2s is released. .

(Effect of this embodiment)
As described above, according to the container handling vehicle 1 according to this embodiment, when the support frame 10 is tilted, the engagement member 65 is separated from the contact member 69, and the engagement member 65 is biased by the spring 68. To move to the engagement position. As a result, the container 2 engages with the engaging member 65 provided on the support frame 10 and is secured to the support frame 10. Therefore, the rear portion of the container 2 is prevented from floating from the support frame 10 when the container 2 is tilted. On the other hand, when the support frame 10 is returned to the horizontal state, the engagement member 65 comes into contact with the contact member 69 and receives a force from the contact member 69, thereby resisting the biasing force of the spring 68 from the engagement position. Move to the matching position. As a result, the container 2 is unlocked. Therefore, the container 2 can be lowered from the chassis. Thus, according to the container handling vehicle 1 according to the present embodiment, a hydraulic lashing device for lashing the container 2 when the container 2 is tilted is unnecessary, and is supported by an inexpensive and simple lashing device 60. In conjunction with the tilting of the frame 10, the container 2 can be locked and released automatically.

(Modification)
The container handling vehicle 1 is only one embodiment of the present invention, and the present invention can be implemented in various other forms.

  As shown in FIG. 6, in the above-described embodiment, the engagement arm 2s is provided outside the container frame 2k in the vehicle width direction, and the hook portion 61 of the engagement member 65 is located outward of the engagement arm 2s in the vehicle width direction. Had been placed in. However, the engagement arm 2s may be provided on the inner side in the vehicle width direction of the container frame 2k, and the hook portion 61 of the engagement member 65 may be disposed on the center side in the vehicle width direction of the engagement arm 2s.

  The container guide 70 is not always necessary and can be omitted. The second connecting portion 68 b of the spring 68 may be connected to a portion other than the container guide 70 in the support frame 10.

  In the embodiment, the contact member 69 is separate from the sub chassis 13, but the contact member 69 may be integrated with the sub chassis 13. A part of the sub chassis 13 may constitute a contact member.

  In the above-described embodiment, the engaging member 65 is configured to be supported by the rotating shaft 62 extending in the front-rear direction when the support frame 10 is in a horizontal state, and to rotate left and right. However, the direction of the rotation shaft 62 is not particularly limited. For example, the engagement member 65 may be supported by a rotation shaft extending in the left-right direction and configured to rotate back and forth.

  In the embodiment, the engagement member 65 and the container 2 are engaged with each other by engaging the hook portion 61 of the engagement member 65 with the engagement arm 2s. However, the mode of engagement between the engagement member 65 and the container 2 is not limited at all. The engaging member 65 and the container 2 may be configured such that a convex portion formed on one of the engaging member 65 and the container 2 and a concave portion formed on the other are engaged. You may be comprised so that the convex part formed in one and the hole formed in the other may engage.

  In the embodiment, the biasing means that biases the engagement member 65 toward the engagement position is the spring 68. However, the biasing means may be an elastic body other than the spring 68.

DESCRIPTION OF SYMBOLS 1 Container handling vehicle 2 Container 2s Engaging arm 10 Support frame 35 Dump cylinder 60 Container lashing device at the time of tilting
61 hook part 62 rotating shaft 63 connecting part 64 cam part 65 engaging member (engaging means)
67 Stopper 68 Spring (biasing means)
69 Contact members

Claims (6)

The chassis,
A support frame that extends in the vehicle front-rear direction and has a rear portion that is tiltably supported by the chassis;
A container supported by the support frame;
A dump cylinder having a front end connected to the chassis and a rear end connected to the support frame, and tilting the support frame by expanding and contracting;
A securing device for securing the container to the support frame when the support frame is tilted,
The lashing device is
Engagement means provided on the support frame and movable between an engagement position engaging with the container and a non-engagement position not engaging with the container;
A biasing means having a first coupling part coupled to the engagement means and a second coupling part coupled to the support frame, and biasing the engagement means toward the engagement position;
A contact member that is provided on the chassis and maintains the engagement means in the non-engagement position by contacting the engagement means when the support frame is in a horizontal state;
A container handling vehicle configured to move the engagement means away from the contact member and move to the engagement position by an urging force of the urging means when the support frame is tilted. The engagement means has a rotation shaft supported by the support frame, and an engagement member supported rotatably by the rotation shaft,
The engaging member has a hook portion engageable with the container, a connecting portion connected to the first connecting portion of the urging means, and a cam portion capable of contacting the contact member.
When the support frame shifts from the tilted state to the horizontal state, the cam portion is pushed up by the contact member, so that the hook portion moves to the non-engagement position, and the support frame tilts from the horizontal state. 2. The container handling vehicle according to claim 1, wherein the cam portion is separated from the contact member and the hook portion is moved to the engagement position when the state is shifted to the above state. The pivot shaft of the engagement means is disposed in parallel with the support frame;
The container is provided so as to extend in the vehicle front-rear direction on a side portion of the container frame, a container frame extending in the vehicle front-rear direction provided at a lower portion of the container main body, and The container handling vehicle according to claim 2, further comprising an engagement arm that engages with the hook portion of the engagement means.   It is provided in the support frame, and is disposed at a position where it comes into contact with the engagement member when the engagement member moves to the engagement position, and the hook portion is arranged so as not to come into contact with the container frame. The container handling vehicle of Claim 3 provided with the stopper which controls rotation. The support frame includes a dump frame whose rear portion is supported to be tiltable to the chassis, and a cargo handling arm that is rotatably connected to the front portion of the dump frame and is engageable with the container.
The container handling vehicle according to claim 3 or 4, wherein a front end of the engagement arm is located rearward of an intermediate position of the container main body in the vehicle front-rear direction. The support frame is configured to be extendable and contractible.
A first engagement member provided on the support frame;
When the container moves forward with the expansion and contraction of the support frame, the first engagement member is engaged. When the container moves rearward with the expansion and contraction of the support frame, the first is provided. A second engagement member that is disengaged from the engagement member,
6. The dump cylinder according to claim 1, wherein the dump cylinder is configured to tilt the support frame when the engagement between the first engagement member and the second engagement member is released. The container handling vehicle as described in one.

Images