JP5649121B2 - Packing box canopy device - Google Patents

Description

  The present invention relates to a canopy device that covers an upper opening of a cargo box mounted on a vehicle so as to be freely opened and closed.

  A carton such as a dump truck is provided with a canopy device that is pivotally supported on an upper portion of a side gate. The canopy device has a configuration in which, for example, a metal canopy frame is pivotally supported on a bearing portion provided at the upper end of the side gate. A seat or the like is hung on the canopy frame, and the canopy frame is rotated between the outer side and the inner side of the side gate with the pivotal support portion as a rotation center. When the canopy frame is rotated to the closed position, most of the upper opening of the packing box is covered with a sheet or the like, and scattering of earth and sand loaded on the packing box can be prevented.

  Among vehicles equipped with such a canopy device, a relatively large vehicle on which a large amount of earth and sand is loaded has a large frame weight. The frame is rotated from the lower side of the side gate to the upper side of the cargo box with the upper end of the side gate as the center, so that high work efficiency can be achieved by rotating operation using the driving force of an electric motor or the like. (For example, Patent Document 1).

JP 2008-126877 A

  On the other hand, in the case of a relatively small and lightweight vehicle, the frame weight of the canopy device is small, and the height of the packing box installation and the side gate is low, so that the frame can be manually rotated. However, when manually rotating the frame, when the frame is in a closed state that covers the upper opening of the cargo box, it is required that the rotation of the frame be restricted so that the closed state can be maintained. In particular, since the frame weight is small, if the vehicle swings up and down while the vehicle is running, the frame may swing similarly and the closed state may not be maintained.

  Further, in view of the work efficiency of the manual rotation operation, the operator must be in an unlocked state during the frame rotation operation, and a lock operation is required separately from the rotation operation. Therefore, there is a possibility that the operator forgets to set the locked state.

  The present invention has been made in view of these points, and an object of the present invention is to provide a canopy device for a packing box that can regulate the rotation of the canopy frame that is manually performed and does not cause a reduction in work efficiency. To do.

  In order to solve the above problems, the following configuration is adopted.

  A bearing member provided above the side gate of the cargo box, a support shaft supported by the bearing member, and manually rotated between the outer side and the inner side of the side gate having the support shaft. A canopy frame for a packing box, comprising: a canopy frame for the packing box; and a lock device that is provided at the upper part of the side gate and manually restricts rotation of at least one of the canopy frame toward the outside or the inside. And Sheets, panels, etc. are arranged on the canopy frame, so that when the canopy frame is closed so as to cover the upper opening of the packing box, scattering of earth and sand and dust in the packing box can be prevented. it can. In the present invention and specification, the “closed state of the canopy frame” refers to a state in which the canopy frame is turned inwardly of the side gate so as to cover the upper opening of the cargo box. The canopy frame is not limited to either the tilted state or the horizontal state when viewed from the rear of the vehicle.

The locking device includes an engaging portion biased to the rear of the vehicle, and a handle for moving the engaging portion to the front of the vehicle, and the engaged portion is disposed on the canopy frame. A configuration in which the engaging portion is engaged with the engaged portion when the canopy frame is closed is preferable.
Furthermore, it is preferable that the handle protrudes outward of the side gate when the engagement between the engaging portion and the engaged portion is released.
The locking device is further provided behind the vehicle at the side gate.

Further, a support frame that can be rotated in the vehicle width direction is pivotally supported on the rear side of the canopy frame, and is engaged with an upper edge portion of the tailgate of the cargo box at the front end portion of the support frame. It is good also as a structure provided with the gate engaging part to perform.
Of the above canopy canopies, the tailgate may be set lower than the side gate.

  In the case of a canopy device that manually rotates the canopy frame, the lock device is provided on the upper side gate as in the present invention, so that the operator can manually rotate the canopy frame behind the vehicle. Since the operator can easily point his / her line of sight toward the inner side of the packing box, the locking device located at the upper part of the side gate and at the rear side can easily enter the field of view, thereby preventing the locking operation from being forgotten.

1 is a side view of a vehicle showing a side gate and a canopy device according to an embodiment of the present invention. It is a schematic diagram which shows the canopy frame of the canopy apparatus which concerns on embodiment of this invention. It is the top view and side view of a locking device which regulate rotation of the canopy frame concerning the embodiment of the present invention. It is a rear view of the canopy frame concerning the embodiment of the present invention. It is a side view concerning another embodiment of a locking device.

  An example of an embodiment of a load receiving table lifting apparatus according to the present invention will be described with reference to the drawings.

  Fig.1 (a) has shown the packing box 10 and its canopy apparatus 20 of this embodiment, and is the side view which looked at the vehicle from the left side. For convenience of explanation, the canopy device 20 is shown in a state of rising along the vertical direction in the same manner as the standing side gate 1 in the packing box 10.

  The cargo box 10 is mounted on a vehicle (not shown) such as a dump truck, and is configured to be tiltable in a rearward downward state on a vehicle body frame 11 extending in the vehicle front-rear direction. The cargo box 10 has a bracket 12 at the lower portion of the vehicle rear end (right end in the figure), and the bracket 12 is pivotally supported via a pin 13 with respect to the rear end of the vehicle body frame 11. Yes. Although not shown, a tilting device is disposed between the cargo box 10 and the vehicle body frame 11 on the front side (left side in the drawing) of the bracket 12. This tilting device is a well-known device and is constituted by a hydraulic cylinder that expands and contracts by pressure oil from a hydraulic pump. The hydraulic cylinder has one end connected to the vehicle body frame 11 and the other end connected to the cargo box 10. When the hydraulic cylinder extends, the cargo box 10 tilts around the pin 13 and when the hydraulic cylinder contracts, The box 10 returns to the horizontal state.

  The cargo box 10 includes a pair of left and right side gates 1 erected on the side of the vehicle with respect to the floor surface 3, a tailgate 2 erected on the rear side of the vehicle, and a front panel (non-standard) And a structure surrounded by (shown).

The tailgate 2 is configured to be rotatable in the direction of the arrow R1 behind the vehicle around a lower hinge 21 provided at the rear end of the floor surface 3. As shown in the figure, the height of the tailgate 2 is set lower than that of the side gate 1, and a rear opening is formed above the tailgate 2 in the cargo box 10 when viewed from the rear of the vehicle. The packing box 10 according to the present embodiment is mounted so that the rear end portion thereof substantially coincides with the rear end portion of the vehicle body frame 11, and is a so-called light vehicle (a light vehicle defined in the enforcement regulations of the Road Transport Vehicle Law). (Automobile) specification. Therefore, the ground height to the pin 2a that is the center of tilting of the packing box 10 is also relatively low, and the tailgate 2 is set lower than the side gate 1 as described above to rotate backward along the arrow R1. It is possible to prevent the upper end 2b from colliding with the ground when moved (opened upward).
The side gate 1 is arranged in a fixed state with respect to the floor surface 3.

  The canopy device 20 is pivotally supported at the upper end portion of the side gate 1, and canopy frame 21 having a predetermined frame shape, a sheet 22 hung on the canopy frame 21, and the canopy frame 21 are connected to the side gate 1. It has the structure which has the bearing member 23 pivotally supported with respect to this, and the locking device 24 which controls rotation of the canopy frame 21. As shown in FIG. In the canopy device 20, a part of the canopy frame 21 is attached to the side gate 1 via a stopper member 25.

  The canopy frame 21 has the same length as the side gate 1 along the vehicle longitudinal direction. Three bearing members 23 are arranged at the upper end of the side gate 1. A support shaft 21a disposed at a position close to the side gate 1 in the canopy frame 21 is supported by a bearing member 23. The canopy frame 21 has an outer side (front side in FIG. 1) and an inner side. It is possible to rotate between (the back side in FIG. 1). Since the canopy frame 21 according to the present embodiment is a size provided in the cargo box 10 mounted on the light vehicle as described above, the canopy frame 21 has a weight that allows an operator to directly hold and rotate it. It has become.

  As illustrated, the seat 22 is formed of an upper covering portion that covers the canopy frame 21 and a rear covering portion other than the upper covering portion. A plurality of holes 211 a are provided along the canopy frame 21 at the end of the upper covering portion. Although illustration is omitted, the sheet 22 is hung on the canopy frame 21 by passing the string through these holes 211 a and binding the string to the canopy frame 21. In addition, in a state where the canopy frame 21 is rotated so as to cover the upper opening portion of the packing box 10, the seat 22 (rear covering portion) is configured so that the rear opening portion of the sheet 22 covers the rear opening portion of the packing box 10. Is stretched downward. The rear covering portion is stretched by hanging rubber 212 or the like disposed at the end portion on a hook (not shown) provided at a predetermined position of the tailgate 2 or the like. Since the sheet 22 is hung on the packing box 10, scattering of earth and sand and dust loaded from the upper opening and the rear opening of the packing box 10 can be prevented.

The bearing member 23 is welded to a top plate 23 a disposed on the upper end portion of the side gate 1. The top plate 23a has an L-shaped cross section when viewed along the vehicle longitudinal direction, and is arranged so as to cover the entire top surface of the side gate 1. Two connecting shafts 23b separated by a predetermined distance are welded to the top plate 23a along the vehicle longitudinal direction.

  The connecting shaft 23b is connected to the cylindrical member 14 provided on the outer surface 1a of the side gate 1 as shown in FIG. 1C of the AA cross section in FIG. 1B and FIG. It is inserted. The connecting shaft 23 b has a tip 231 b protruding from the cylindrical member 14, and the tip 231 b is fixed to the side gate 1 by a stopper member 25. The stopper member 25 includes a plate 25a having a concave cross section, and a bolt 25b and a nut 25c for fixing the tip 231b of the connecting shaft 23b to the plate 25a.

  That is, as shown in FIG. 2A, the canopy frame 21 is configured to be integrally attached to the side gate 1 with the support shaft 21 a being pivotally supported by the bearing member 23. Note that the canopy frame 21 and the like can be easily detached from the side gate 1 by releasing the stopper member 25 in FIG. Moreover, attachment can also be performed easily.

  The canopy frame 21 has a support frame 26 on the vehicle rear side (the right side in FIG. 2A). The support frame 26 is configured such that a base end portion thereof is pivotally supported with respect to the main body frame 211 of the canopy frame 21 via a pin 26a, and a substantially U-shaped bracket 26b opened at the distal end side is disposed. It has become. When viewed from the rear of the vehicle, as shown in FIG. 2 (b), the support frame 26 can rotate around the pin 26a separately from the rotation of the main body frame 211 that rotates about the support shaft 21a (arrow R2). (Arrow R3). Note that a resin stopper (not shown) for restricting the rotation of the support frame 26 is provided on the support shaft side of the main body frame 211 in FIG.

  The canopy frame 21 that is turned inward along the arrow R2 (inward of the side gate 1) to the closed state is restricted by the lock device 24 and maintained in the closed state. . As shown in FIG. 2A, the locking device 24 is disposed at the upper end of the side gate 1 on the vehicle rear side. When the canopy frame 21 is turned to the closed state, the cylindrical engaged portion 241 provided on the rear side of the main body frame 211 and the locking device 24 are substantially at the same height and are engaged with the engaged portion 241. It becomes possible. Thus, since the locking device 24 arranged on the upper part of the side gate 1 is arranged in the vicinity of the canopy frame 21 that the operator gazes at the time of the rotation operation, the operator can easily see. In particular, since the locking device 24 is arranged on the rear side of the vehicle where the canopy frame 21 can be easily rotated in the operation space, the operator can follow the turning operation of the canopy frame 21 and then perform the operation of the locking device 24 on the spot. The operation can be performed.

  The locking device 24 will be specifically described with reference to FIG. FIG. 3A is a plan view of the locking device 24 with the left side being the front side of the vehicle, and FIG. 3B is a side view of the locking device 24 viewed from the left side of the vehicle. The locking device 24 includes a cylindrical cover 24a extending in the vehicle front-rear direction, a shaft 24b built in the cylindrical cover 24a, a spring member 24c, and a notch portion attached to the shaft 24b and provided in the cylindrical cover 24a. And a handle 24d protruding upward from 241a. Note that one end of the spring member 24c is fixed to the inner end of the cylindrical cover 24a, and is provided so as to urge the shaft 24b toward the vehicle front side. The notch portion 241a is formed on the upper side of the cylindrical cover 24a, with the upper notch portion 2411a having the longitudinal direction in the vehicle front-rear direction, and from the rear end portion of the upper notch portion 2411a to the side portion of the cylindrical cover 24a. Side notch 2412a.

  The locking device 24 shown in FIG. 3 is engaged with the engaged portion 241 when the side gate 1 is tilted inward and closed to project the front end 241b of the shaft 24b to the front of the vehicle. is there. On the contrary, when the canopy frame 21 in the closed state is rotated to be in the open state, the handle 24d is gripped and the shaft 24b is slid rearward against the urging force of the spring member 24c. At this time, the engagement state between the tip portion 241b of the shaft 24b and the engaged portion 241 is released, and the unlocking state by the locking device 24 is maintained by rotating the handle 24d to the region of the side cutout portion 2412a. be able to. The cylindrical cover 24a and the engaged portion 241 have substantially the same height when the canopy frame 21 is closed, but the center position is slightly shifted in the vehicle width direction when viewed from the rear of the vehicle. Since the cylindrical cover 24a is positioned on the inner side of the cargo box with respect to the engaged portion 241, the outer peripheral surface of the shaft 24b abuts on the inner side of the inner portion of the engaged portion 241 with the inner side of the cargo box. The rotation of the canopy frame 21 in the standing direction is restricted. The rotation restriction (locking) of the canopy frame 21 by the locking device 24 is simple because it is only necessary to slide the handle 24d forward of the vehicle.

The locking device 24 can be easily seen from the rear side of the vehicle where the operator can easily perform the work, rather than the front side of the vehicle where the rotation of the canopy frame 21 is limited in terms of space on the front panel or the like. The operation of the lock device 24 after work is also simple and has a great effect in terms of work efficiency. Further, when the handle 24d is disposed at the position of the side notch 2412a, the handle 24d protrudes outward from the side gate 1, so that the rotation of the canopy frame 21 is not restricted (unlocked). It is easy for the operator to visually recognize that the state is present.
Furthermore, the canopy device 20 according to the present embodiment also has the following effects in the work behind the vehicle.

  When the canopy device 20 is in the closed state, the canopy frame 21 for the cargo box 10 is as shown in FIG. FIG. 4 is a schematic diagram showing the canopy frame 21 and the packing box 10.

  In the closed state, the main body frame 211 maintains the state of FIG. 4A due to the frictional force between the support shaft 21a and the bearing member. At this time, the support frame 26 has a U-shaped bracket 26b at the tip engaged with the upper edge of the tailgate. Since the support frame 26 is rotatable with respect to the main body frame 211, the bracket 26b can be engaged with the upper edge of the tailgate at a position where the main body frame 211 can be favorably supported. This engagement can be performed while the operator grips the main body frame 211 when the canopy frame 21 is rotated on the rear side of the vehicle. Since the main body frame 211 is favorably supported by the support frame 26, it is possible to prevent the relatively lightweight main body frame 211 from being bent due to rainwater accumulated on the seat 22 or the weight of the frame. The closed state of the canopy frame 21 shown in the figure is a state in which the left and right canopy frames 21 are inclined in a mountain shape when viewed from the rear of the vehicle. However, even if the canopy frame 21 is in a horizontal state, it has a valley shape. There may be. In addition, the inclination angle of the canopy frame 21 is not limited to the state shown in the figure, and the position of the support frame 26 and the tailgate 2 can be changed as appropriate according to the size of the vehicle or the cargo box.

  In addition, as described above, the seat 22 is covered with respect to the rear opening of the packing box 10 (see FIG. 1A), so that the “rotating operation of the canopy frame 21” and “tail” are performed on the same vehicle rear side. The operation of engaging the support frame 26 with the gate 2, “restricting the rotation of the canopy frame 21 by the locking device 24 (locking)”, and “covering the rear opening with the seat 22” can be performed as a series of operations. , Leading to improved work efficiency.

  Moreover, if the support frame 26 is used, the rotation operation | work of the canopy frame 21 by an operator's manual can also be simplified. As shown in FIG. 4B, when the canopy frame 21 is rotated toward the outside of the side gate 1, the canopy frame 21 can be rotated by grasping and lifting the support frame 26. In particular, when starting the rotation operation at a position lower than the main body frame 211, it is preferable to grip and rotate the vicinity of the front end portion of the support frame 26 as compared with the case of gripping the main body frame 211.

Since the support frame 26 can rotate with respect to the main body frame 211, the present invention can be applied even when the height difference (area of the rear opening) between the side gate 1 and the tail gate 2 is different. Further, regarding the bracket 26b at the tip of the support frame 26, it is preferable that the support body frame 26c is pivotally supported via a pin 26d so that the support frame 26 can rotate in the extending direction.
The canopy device 20 may be configured as follows.

  For example, the bearing member 23 may be configured to be welded to the side gate 1, for example, the upper edge portion of the side gate 1, and the canopy frame 21 may be fixed to the side gate 1.

  The lock device 24 may be configured to automatically perform either one of the lock operation and the lock release operation. For example, the locking device 240 shown in FIG. The form using the locking device 240 differs from the locking device 24 (see FIG. 3) described above in the shape of the notch 2410a and the engaged portion 2410 disposed behind the canopy frame 21. The notch 2410a has only a shape extending in the extending direction of the cylindrical cover 240a, and the engaged portion 2410 is a plate member having a tapered portion 2411 on the lower surface. When the canopy frame 21 is rotated and closed, the tapered portion 2411 abuts on the shaft front end portion 241b as shown in FIG. 5B, and the shaft 24b is moved to the rear of the vehicle as shown by a one-dot chain line portion in the figure. Move to. When the canopy frame 21 is in the closed state, the engaged portion 2410 moves below the shaft 24b. When the engaged portion 2410 moves downward, the shaft 24b comes into a non-contact state with the shaft 24b, and moves again forward of the vehicle by the urging force of the spring member 24c (solid line portion in the figure). That is, when the canopy frame 21 is closed, the lock device 240 is automatically operated. On the other hand, when the canopy frame 21 is opened, the operator manually operates the handle 24d to slide the shaft 24b to the rear of the vehicle so that the engaged portion 2410 can be rotated. In the case of this locking device 240, it automatically operates when in the closed state, leading to an improvement in the work efficiency of the operator, and in order to open it, the lock is not released unless there is a separate manual operation. 21 is safe without unexpected rotation.

  Further, the locking devices 24 and 240 are not limited to the upper surface as long as they are above the side gate 1, and may be in the vicinity thereof. Furthermore, it is not limited to the rear end portion of the vehicle, and may be arranged in different places as long as the work efficiency of the worker is not lowered. In particular, in the case of a light vehicle, the length of the side gate 1 in the vehicle front-rear direction is also limited. Therefore, when the operator can operate the vehicle early, it may be provided in front of the vehicle.

  In addition, the direction in which the shaft 24b is urged by the spring member 24c may be the rear of the vehicle. Further, regarding the configuration, as long as it is provided at the upper part of the cargo box 10 and is manually operated, for example, a hook-shaped engaging portion may be moved so as to be engageable. Further, with respect to the height of the side gate 1 and the tail gate 2, the tail gate 2 may have a higher configuration or a substantially identical configuration. Even when the heights of the side gate 1 and the tail gate 2 substantially coincide with each other, a configuration in which the support frame 26 is disposed may be employed. In this case, the inclination angle with respect to the side gate 1 when the canopy frame 21 is closed can be appropriately adjusted by engaging the support frame 26 with the tail gate 2.

  The above-described packing box 10 is mounted on a dump truck or the like that is tilted backward and downward. However, a canopy device that is manually operated even in a vehicle that does not include a tilting device or a vehicle other than a light vehicle is used. It can also be applied to distributed ones.

  The present invention is useful for all types of packing boxes mounted on vehicles.

DESCRIPTION OF SYMBOLS 1 Side gate 2 Tail gate 3 Floor surface 10 Cargo box 11 Car body frame 20 Canopy device 21 Canopy frame 22 Seat 23 Bearing member 24 Locking device 25 Stopper member 26 Support frame 241 Engagement part 21a Support shaft 23a Top plate 23b Connection shaft 24a Tube Cover (tubular member)
24b Shaft (engagement part)
24c Spring member 24d Handle 25a Plate (concave shape)
25b Bolt 25c Nut 26a Pin 26b Bracket (Gate engaging part)

Claims (3)

A bearing member provided above the side gate of the cargo box, a support shaft supported by the bearing member, and manually rotated between the outer side and the inner side of the side gate having the support shaft. and canopy frame packing box, and and a locking device for regulating manually at least one of rotation of the outer side or inner side of the front SL canopy frame, said locking device, a vehicle in the side gate upper A canopy device for a packing box, which is provided at a rear end portion . The locking device is provided on the side gate provided with the bearing member, and restricts rotation of the canopy frame that is manually rotated around the support shaft. The canopy apparatus according to 1. The locking device includes an engaging portion biased to the rear of the vehicle, and a handle for moving the engaging portion to the front of the vehicle , and the engaged portion is disposed on the canopy frame. When the canopy frame is closed, the engaging portion is engaged with the engaged portion, and when the engagement between the engaging portion and the engaged portion is released, the handle is The canopy device for a packing box according to claim 1 or 2, wherein the canopy protrudes outward of the side gate.

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