JP7252836B2 - Detachable wing body - Google Patents

Description

The present invention relates to a detachable wing body that can be detachably loaded on a truck chassis.

A wing body that flips up the sides of a box that constitutes the cargo compartment of a truck has a form that is detachable from the chassis of the truck. The detachable wing body of this form is provided with support legs that can be stored under the wing body, as described in Patent Document 1. When the wing body is attached to the truck chassis and cargo is transported, the supporting legs are stored under the wing body. On the other hand, by erecting the support legs and fixing them to the ground, the detachable wing body can be separated from the chassis and made independent on the ground. As a result, the detachable wing body can be transferred to a railway freight car or another truck, and the work of transporting the cargo can be separated from the work of loading the cargo onto the detachable wing body. Furthermore, there is an advantage that the wing body alone can be used as a warehouse.

The detachable wing body has flip-up wings on the left and right sides, and the wings can be opened and closed by manual operation. An elastic force is applied to the wings in the opening direction, and when the wings are to be closed, the operator needs to pull the rope to operate the wings.

JP-A-2004-142639

In order to automatically open and close the wings by a drive mechanism, a hydraulic cylinder for driving the wings to open and close, a hydraulic pump for supplying hydraulic oil to the hydraulic cylinder, an electric motor for driving the hydraulic pump, and the like are required. In a wing body that is fixed to a chassis of a truck, it is possible to provide the chassis with a hydraulic pump, an electric motor, or the like for supplying hydraulic oil to the hydraulic cylinder.

However, since the detachable wing body is used even when it is separated from the chassis of the truck and stands on its own as described above, the chassis cannot be provided with an opening/closing mechanism to drive the wings to open and close. Therefore, it is necessary to provide a drive mechanism in the wing body, but if the drive mechanism is provided in the cargo compartment of the wing body, the volume of the cargo compartment will be reduced by that amount, and the cargo load capacity will be reduced.

SUMMARY OF THE INVENTION An object of the present invention is to provide a detachable wing body capable of automatically driving the wings to open and close without reducing the volume of the cargo compartment.

The detachable wing body of the present invention is provided on a rear frame provided with an opening and closing door, a front frame facing the rear frame, and a vertical beam provided at the center of the upper side of the front frame and the rear frame so that it can be freely opened and closed. a detachable wing body detachably attached to a chassis of a truck, comprising: hydraulic cylinders provided on the front frame and the rear frame for opening and closing the wings; a power unit that includes a hydraulic pump that supplies hydraulic oil to a cylinder and an electric motor that drives the hydraulic pump, and is arranged in a lower region of a space surrounded by the front frame; a body-side battery that supplies power to the
a coupler that protrudes from the lower surface of the floor plate and is connected to the terminal of the battery on the body side, and a cable that is connected to the battery on the truck side provided on the chassis of the truck is connected to the coupler. , the battery on the body side is charged by the battery on the truck side.

A hydraulic cylinder for driving the wings to open and close is supplied with hydraulic oil discharged from a hydraulic pump provided in the power unit. The power unit includes a hydraulic pump and an electric motor for driving the hydraulic pump, and is arranged in the internal space of the front frame of the detachable wing body. As a result, the wing can be automatically opened and closed without providing a member constituting the power unit inside the removable wing body and without narrowing the volume of the cargo compartment of the removable wing body.

By arranging the battery that supplies electric power to the electric motor in the internal space of the front frame, the internal volume of the removable wing body can be secured without the battery being provided inside the removable wing body.

FIG. 4 is a side view showing a detachable wing body attached to the chassis of the truck; FIG. 4 is a side view showing the removable wing body in a state where it stands on its own on the ground; FIG. 4 is a rear view showing the removable body with wings closed; FIG. 4 is a rear view showing the removable body with wings open; FIG. 4 is a front view showing the removable body with wings closed; FIG. 4 is a schematic diagram showing hydraulic piping between a hydraulic cylinder and a power unit; FIG. 6 is a front view showing the inside of the power unit shown in FIG. 5; FIG. 8 is an enlarged front view of a main part of FIG. 7; FIG. 9 is a left side view of FIG. 8; 4 is a hydraulic circuit diagram between the power unit and the hydraulic cylinder; FIG. FIG. 11 is a side view showing a coupler attached to the detachable wing body; FIG. 12 is a sectional view taken along line AA in FIG. 11;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. As shown in FIG. 1, the detachable wing body 10 has a floor frame 14, a front frame 15 and a rear frame 16, and is mounted on the chassis 12 of the truck 11 so as to be positioned behind the driver's seat 13. As shown in FIG. When the detachable wing body 10 is attached to the chassis 12 , the front frame 15 faces the driver's seat 13 , the rear frame 16 faces the front frame 15 , and is arranged at the rear end of the chassis 12 . In this specification, when the detachable wing body 10 is attached to the chassis 12, the driver's seat 13 side is the front of the detachable wing body 10, and the opposite side is the back.

As shown in FIGS. 2 to 5, the front frame 15 consists of left and right struts 15a and 15b and an upper lateral beam 15c. The rear frame 16 is composed of left and right struts 16a and 16b and an upper horizontal beam 16c. A vertical beam 21 is provided between the central portion of the horizontal beam 15c and the central portion of the horizontal beam 16c, and left and right wings 22 and 23 are provided on the vertical beam 21 so as to be freely opened and closed. That is, the left and right wings 22 and 23 are provided on vertical beams 21 provided at the upper center portions of the front frame 15 and the rear frame 16 so as to be freely opened and closed. Each wing 22, 23 has a ceiling portion 22a, 23a and side portions 22b, 23b. Two fanning plates 24 are provided on the left and right sides of the floor frame 14 so as to be openable and closable. A floor board (not shown) is attached to the floor frame 14 .

A space surrounded by the front frame 15 is formed inside the gate-shaped front frame 15 composed of the pillars 15a and 15b and the lateral beams 15c. This space is formed on the outer surface side of the front wall 17 and has a spatial volume corresponding to the thickness dimension of the front frame 15 in the front-rear direction. In this space, that is, the inner space, as shown in FIG. 5, a vertical reinforcing member 19a and a horizontal reinforcing member 19b are arranged.

The floor frame 14 is provided with a total of six supporting legs 25 on both left and right sides of the front, back, and middle. As shown in FIGS. 2 to 5, the detachable wing body 10 is supported on the ground S by support legs 25. As shown in FIG. In order to mount the detachable wing body 10 standing by itself on the ground S to the chassis 12 of the truck 11, the chassis 12 is moved below the floor surface of the detachable wing body 10. The vehicle height is raised and the wing body 10 is lifted. As a result, each supporting leg 25 is separated from the ground S. In this state, after rotating each support leg 25 to a horizontal state, the support leg 25 is stored on the lower surface of the floor board. As a result, the mounting of the removable wing body 10 on the truck 11 is completed, and the removable wing body 10 is mounted on the chassis 12 as shown in FIG.

On the other hand, the detachable wing body 10 attached to the chassis 12 of the truck 11 is made to stand on its own on the ground S by a procedure opposite to that described above. Since the cargo can be loaded onto the detachable wing body 10 while being independently arranged on the ground S, the work of transporting the cargo by the truck 11 and the cargo handling work of the cargo onto the detachable wing body 10 can be performed. can be separated from

In order to open and close the wings 22 and 23, as shown in FIG. 4, two left and right hydraulic cylinders 26a and 26b are pivotally connected to the lateral beam 15c of the front frame 15 by pins. Two left and right hydraulic cylinders 27a and 27b are pivotally connected to the horizontal beam 16c of the frame 16 by pins. The piston rods 28a, 28b of the two hydraulic cylinders 26a, 26b on the front side are pin-connected to the front portions of the ceilings 22a, 23a of the wings 22, 23, and the piston rods of the two hydraulic cylinders 27a, 27b on the rear side are connected by pins. 29a and 29b are pin-connected to the rear side portions of the ceiling portions 22a and 23a of the wings 22 and 23, respectively.

FIG. 6 is a schematic diagram showing hydraulic piping between the four hydraulic cylinders and the power unit 30 described above. As shown in FIG. 5, the power unit 30 is arranged in the lower region of the inner space surrounded by the front frame 15, and is arranged on the outer surface side of the front wall 17 provided inside the front frame 15. . The power unit 30 has an A port 31 that discharges working oil to the lowering oil chambers of the left front and rear hydraulic cylinders 26a and 27a, and a B port 32 that discharges working oil to the rising oil chambers. Further, the power unit 30 has a C port 33 that discharges working oil to the lowering oil chambers of the front and rear hydraulic cylinders 26b and 27b on the right side, and a D port 34 that discharges working oil to the rising oil chambers. .

The A port 31 is connected to a branch joint J1 through a main pipe 35. The main pipe 35 is connected through the branch joint J1 to a lowering oil chamber of the hydraulic cylinder 26a through a branch pipe 35a. connected to the oil chamber. Similarly, the B port 32 is connected to the branch joint J2 by the main pipe 36, the main pipe 36 is connected to the rising oil chamber of the hydraulic cylinder 26a by the branch pipe 36a via the branch joint J2, and the branch pipe 36b is to connect the hydraulic cylinder It is connected to the rising oil chamber 27a.

Further, the C port 33 is connected to the branch joint J3 by the main pipe 37, the main pipe 37 is connected to the descending oil chamber of the hydraulic cylinder 26b by the branch pipe 37a through the branch joint J3, and the branch pipe 37b is connected to the hydraulic cylinder 27b by the branch pipe 37b. connected to the lowering oil chamber. Similarly, the D port 34 is connected to the branch joint J4 by a main pipe 38, the main pipe 38 is connected to the rising oil chamber of the hydraulic cylinder 26b by a branch pipe 38a via the branch joint J4, and the branch pipe 38b is to connect the hydraulic cylinder It is connected to the rising oil chamber 27b. In FIG. 6, the piping connected to the ascending oil chamber is indicated by a thick line, and the piping connected to the descending oil chamber is indicated by a thin line.

FIG. 7 is a front view showing the inside of the power unit 30, and FIG. 8 is an enlarged front view of a main part of FIG. 9 is a left side view of FIG. 8, and FIG. 10 is a hydraulic circuit diagram between the power unit and the hydraulic cylinder.

As shown in FIG. 8, the power unit 30 has an oil tank 42 in which an oil chamber 41 for storing working oil is formed, and a hydraulic pump 43 is attached to the oil tank 42 . An electric motor 44 is attached to the hydraulic pump 43 and the hydraulic pump 43 is driven by the electric motor 44 . A body-side battery 45 for supplying electric power to the electric motor 44 is arranged in the internal space of the front frame 15 as shown in FIG.

The power unit 30 has an oil passage block 46. The oil passage block 46, as shown in FIG. Valves 47, 48 are 4-port 3-position directional control valves. As shown in FIG. 10, the electromagnetic valve 47 is provided between the discharge port of the hydraulic pump 43 and the front and rear hydraulic cylinders 26a, 27a on the left side. Hydraulic oil is supplied to the rising oil chambers of the hydraulic cylinders 26a and 27a, and the piston rods 28a and 29a are driven to protrude. The wings 22 are thereby opened. On the other hand, when a drive signal is applied to the coil 47b, hydraulic oil is supplied to the pipe 52 and into the lowering oil chambers of the hydraulic cylinders 26a, 27a, thereby driving the piston rods 28a, 28b backward. The wings 22 are thereby closed.

The solenoid valve 48 is provided between the discharge port of the hydraulic pump 43 and the front and rear hydraulic cylinders 26b, 27b on the right side. When a drive signal is applied to the coil 48a, hydraulic oil is supplied to the pipe 53 to Hydraulic oil is supplied to the rising oil chambers of 26b and 27b, and the piston rods 28b and 29b are driven to protrude. The wings 23 are thereby opened. On the other hand, when a drive signal is applied to the coil 48b, hydraulic oil is supplied to the pipe 54 and into the lowering oil chambers of the hydraulic cylinders 26b and 27b, thereby driving the piston rods 28b and 29b backward. The wings 23 are thereby closed.

A pipe 51 is connected to the B port 32 of the power unit 30 , a pipe 52 is connected to the A port 31 , a pipe 53 is connected to the D port 34 , and a pipe 54 is connected to the C port 33 . In FIG. 10, the branch piping between each port and the four hydraulic cylinders is omitted.

A pilot check valve 55 is provided in the pipe 51 and a pilot check valve 56 is provided in the pipe 52 . The hydraulic fluid in the pipe 52 is supplied to the pilot check valve 55 as pilot pressure, and the hydraulic fluid in the pipe 51 is supplied to the pilot check valve 56 as pilot pressure. As a result, when the hydraulic oil discharged from the hydraulic pump 43 is being supplied to the upward oil chambers of the hydraulic cylinders 26a and 27a through the pipe 51, the pilot check valve 56 is opened, and the hydraulic oil discharged from the downward oil chambers is operated. Oil is returned to the oil chamber 41 . on the other hand,
When the hydraulic oil discharged from the hydraulic pump 43 is being supplied to the lowering oil chambers of the hydraulic cylinders 26a and 27a through the pipe 52, the pilot check valve 55 is opened and the hydraulic oil discharged from the ascending oil chambers Returned to chamber 41 .

Similarly, the pipe 53 is provided with a pilot check valve 57 and the pipe 54 is provided with a pilot check valve 58 . When the hydraulic pump 43 is not in operation, the respective pilot check valves 55 to 58 prevent hydraulic oil from flowing into and out of the oil chamber of the hydraulic cylinder, and the wings 22 and 23 are kept stopped.

The pipe 51 is provided with a discharge pipe 61 for communicating the B port 32 and the oil chamber 41 , and the pipe 52 is provided with a discharge pipe 62 for communicating the A port 31 and the oil chamber 41 . Similarly, the pipe 53 is provided with a discharge pipe 63 for communicating the D port 34 and the oil chamber 41 , and the pipe 54 is provided with a discharge pipe 64 for communicating the C port 33 and the oil chamber 41 . The discharge pipe 61 is provided with an emergency manual release screw 65, and this manual release screw 65 is always closed. When this manual release screw is opened in an emergency, the wing 22 can be moved downward by gravity. The discharge pipe 62 is provided with an emergency manual release screw 66, which is always closed. When the manual release screw 66 is opened in an emergency, the wing 22 can be raised by a crane or the like.

Similarly, the discharge line 63 is provided with an emergency manual release screw 67 and the discharge line 64 is provided with an emergency manual release screw 68, functioning in the same manner as the manual release screws 65 and 66 described above.

As shown in FIG. 5, the power unit 30 is provided with a power unit switch 71, and when the switch 71 is turned on, the power unit 30 is maintained in an operable state. As shown in FIG. 5, a left wing open/close switch 72 is provided on the front wall 17 to the left of the detachable wing body 10, and this switch 72 is operated in a direction to open the left wing 22. Then, the magnet switch 71a shown in FIG. As a result, hydraulic oil is supplied to the hydraulic pressure for raising the front and rear hydraulic cylinders 26a and 27a on the left side. On the other hand, when the switch 72 is operated in the direction to close the left wing 22, a drive signal is applied to the coil 47b of the electromagnetic valve 47. As shown in FIG. The hydraulic pump 43 is driven by an electric motor 44 powered by a battery 45 .

A right wing open/close switch 73 is provided in the power unit 30 on the right side of the detachable wing body 10. When the switch 73 is operated in the direction to open the right wing 23, the magnet switch 71a is turned on. A drive signal is applied to the coil 48a of the electromagnetic valve 48 at the same time when the hydraulic pump 43 is driven. As a result, hydraulic oil is supplied to the hydraulic pressure for raising the front and rear hydraulic cylinders 26b and 27b on the right side. On the other hand, when the switch 73 is operated in the direction to close the right wing 23, a drive signal is applied to the coil 48b of the electromagnetic valve 48. As shown in FIG.

As described above, the power unit 30 has the oil tank 42, the hydraulic pump 43, the electric motor 44, and the solenoid valves 47 and 48, which are collectively arranged in the frame space inside the front frame 15, It is positioned outside the front wall 17 . Thus, the power unit 30 is housed together with the battery 45 outside the front wall 17 in a range surrounded by the struts 15a and 15b and the cross beams 15c that form the front frame 15. As shown in FIG. Therefore, members such as the hydraulic pump 43 do not protrude inside the removable wing body 10, and the wings 22 and 23 can be driven to open and close without narrowing the volume of the cargo compartment inside the removable wing body 10. .

The power unit 30 is arranged on the outer surface of the detachable wing body 10 so as to face the driver's seat 13. The wings 22 and 23 can be opened and closed by inserting a hand into the space between the driver's seat 13 and the detachable wing body 10. , can be automatically performed by operating a switch. In addition, since the power unit 30 is exposed toward the driver's seat 13 in front of the front wall 17, maintenance of the power unit 30 can be easily performed from the outside. The front surfaces of the power unit 30 and the battery 45 are substantially flush with the front surface of the front frame 15 . However, since a space is provided between the driver's seat 13 and the detachable wing body 10, the front surfaces of the power unit 30 and the battery 45 may protrude into the space.

A battery 45 for supplying electric power to the electric motor 44 is arranged adjacent to the power unit 30 in the space within the frame of the front frame 15. By driving the cylinders 26a, 26b, 27a, 27b, the wings 22, 23 can be automatically opened and closed.

As shown in FIGS. 11 and 12, a horizontal beam member 75 is attached to the floor frame 14 and a coupler holder 76 is attached to the horizontal beam member 75 . Two couplers 77 of a positive electrode and a negative electrode are attached to a coupler holder 76 , and each coupler 77 is inclined toward the side surface of the floor frame 14 and protrudes downward from the floor frame 14 . A cable 78 connected to each coupler 77 is connected to a terminal of the battery 45 on the body side. A side surface of the coupler holder 76 is covered with a cover 79 .

A truck-side battery (not shown) is mounted on the truck 11, and the connectors 82 of the cables 81 connected to the terminals of the battery are detachably attached to the couplers 77, respectively. The truck-side battery has a larger storage capacity than the body-side battery 45 . Therefore, when the detachable wing body 10 is attached to the chassis 12 of the truck 11 and the cable 81 connected to the battery on the truck side is connected to the coupler 77, the battery on the truck side will operate the battery on the body side. 45 can be filled. In other words, the battery 45 can be charged while the truck 11 is transporting cargo in the removable wing body 10 .

When the detachable wing body 10 is removed from the truck 11 and stands on its own, the wings 22 and 23 are not frequently opened and closed. can. Thereby, the battery 45 can be arranged in the limited space inside the frame of the front frame 15, and the volume of the cargo compartment inside the detachable wing body 10 can be secured.

The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention.

10 Detachable Wing Body 11 Truck 12 Chassis 13 Driver's Seat 14 Floor Frame 15 Front Frame 16 Rear Frame 17 Front Wall 18 Door 21 Vertical Beams 22, 23 Wing 25 Support Legs 26a, 26b Hydraulic Cylinders 27a, 27b Hydraulic Cylinder 30 Power Unit 41 Oil Chamber 42 Oil tank 43 Hydraulic pump 44 Electric motor 45 Battery 47, 48 Solenoid valve 71 Power unit switch 72 Left wing open/close switch 73 Right wing open/close switch 77 Coupler 82 Connector

Claims (4)

It has a rear frame provided with an opening and closing door, a front frame facing the rear frame, and left and right wings provided freely openable and closable on vertical beams provided at the upper central part of the front frame and the rear frame. and a detachable wing body that is detachably attached to the chassis of the truck,
hydraulic cylinders provided on the front frame and the rear frame, respectively, for opening and closing the wings;
a power unit including a hydraulic pump that supplies hydraulic oil to the hydraulic cylinder and an electric motor that drives the hydraulic pump , the power unit being arranged in a lower region of a space surrounded by the front frame;
a body-side battery arranged in the inner space of the front frame and supplying electric power to the power unit;
a coupler that protrudes from the lower surface of the floor plate and is connected to the terminal of the battery on the body side ;
A detachable wing body, wherein a cable connected to a truck-side battery provided on a truck chassis is connected to the coupler, and the body-side battery is charged by the truck-side battery. In the detachable wing body according to claim 1 ,
The power unit is a detachable wing body having an electromagnetic valve that switches and controls an oil passage provided between the hydraulic pump and each of the hydraulic cylinders, and an oil tank that stores hydraulic oil. In the detachable wing body according to claim 2 ,
A detachable wing body, wherein a discharge pipe connecting an oil chamber of the hydraulic cylinder and the oil tank is provided with an emergency manual release screw for opening the discharge pipe. In the detachable wing body according to any one of claims 1 to 3 ,
A detachable wing body in which an opening/closing switch for opening/closing the right wing is arranged on the right side of the inner space of the front frame, and an opening/closing switch for opening/closing the left wing is arranged on the left side of the inner space of the front frame.

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