JP3430367B2 - Cargo fall prevention device for freight vehicles - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rear opening of a van or wing-roof type freight vehicle with a hydraulic or pneumatic lifting roller conveyor or a pallet loader. If the loaded cargo is moved to the platform opening by using a roller conveyor or pallet loader, there is a risk of the loaded cargo being dropped from the platform due to excessive pushing. The present invention relates to an improvement of a cargo fall prevention device for a freight vehicle installed in a vehicle. 2. Description of the Related Art Conventionally, a lifting type metal fitting is mounted as a device for preventing a load from dropping at an end of a hydraulic or pneumatic type lifting roller conveyor installed on a cargo bed of a freight vehicle. I have. [0003] However, the above-mentioned triggering type of loaded cargo fall prevention device is often forgotten by workers, causing frequent accidents of falling loaded cargo. Occasionally, a person working near a freight vehicle can be hurt by falling cargo. [0004] That is, in the above-described conventional apparatus for preventing the fall of a loaded cargo, a person may forget to put it on because it is manually operated, thereby causing an accident due to the fall of the loaded cargo. Accordingly, the present invention provides a method for ensuring the function of the organic material of the "cargo fall prevention device for a cargo vehicle" and the function of the body even if the operation for making it function is forgotten. The cargo drop prevention device for freight vehicles is buried in the cargo bed at the end, and when loading cargo, the cargo fall prevention device for freight vehicles is in the stowed state.After the loading work is completed, the opening door is closed. By pressing the button protruding to the door side of the cargo fall prevention device for freight vehicles, the cargo fall prevention device for freight vehicles works, and when unloading, the operation that has already been activated is automatically completed.
It is an object of the present invention to provide such a safe "cargo fall prevention device for freight vehicles". SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a cargo fall prevention device for a freight vehicle, comprising a substantially cubic storage case and a rotating member. At the upper end, a flange is projected outward at right angles to the outer wall surface, and a bearing with a through hole is provided at the upper left and upper right,
A cylindrical body containing a push button is provided so that the spring is wrapped inside and the tip wraps around the spring, and the storage case includes a front wall, a left wall, a right wall, and an upper wall, and a protruding piece. Is formed, and a rotating member in which a hollow cylindrical tube that houses a spring and a locking pin is fixed by a front and rear holding plate is fixed to the bearing by a shaft fixing and a set screw, and the upper end is the upper wall. The lower end is rotatably mounted on a shaft around which a spring locked on the inner surface of the storage case is wound, and the tip of the locking pin stored in the cylindrical tube is attached to the rear end of the cylindrical body. The cargo for a freight vehicle, wherein the locking member is locked, and by pushing a push button, the tip of the locking pin is disengaged from the rear end of the tubular body, and the rotating member is rotated upward from the upper surface of the flange. The structure of the fall prevention device was adopted. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a cargo fall prevention device for a freight vehicle according to the present invention. FIG. 1 is a front view of a cargo fall prevention device for a freight vehicle according to the present invention, and FIG.
FIG. 3 is a left side view of the cargo fall prevention device for a freight vehicle according to the present invention, FIG. 3 is a right side view of the cargo fall prevention device for a freight vehicle, FIG. 4 is a plan view of the cargo fall prevention device for a freight vehicle, and FIG. It is a bottom view of the cargo fall prevention device for vehicles. A cargo fall prevention device 1 for a freight vehicle according to the present invention is installed so as to be buried in a rear portion of a cargo bed of a freight vehicle. As shown in FIGS. 1 to 5, a cargo fall prevention device 1 for a freight vehicle according to the present invention includes a storage portion 2 and a rotating member 4 rotatably mounted and stored in the storage portion 2. As shown in FIGS. 1 to 5, the storage section 2
It is formed in a substantially cubic shape. As shown in FIG. 1, a flange 2 b is provided at an upper end of the storage case 2 a of the storage unit 2.
Are connected to the storage case 2a so as to project outward at right angles to the outer wall surface of the storage case 2a. Then, as shown in FIG.
The operation unit 3 is attached to a. The operation unit 3
Is a push button 3a and a cylinder 3 housing the push button 3a.
b, the push button 3a can be moved in and out of the cylinder 3b as shown by the arrow a. As shown in FIG. 10, a spring 3c is mounted in the cylinder 3b.
It is structured to be pushed back to the original position by the repulsive force of c. Details will be described later. As shown in FIG. 2, bearings 2e and 2e are formed in the upper left and upper right portions of the storage case 2a. The bearings 2e and 2e have through holes, into which the shaft 2c is inserted. Also, both ends of the shaft 2c are
Both ends protruding from the bearings 2e, 2e
d and 2d are mounted. Each of the shaft stoppers 2d, 2d has a shaft 2c, 2d.
A screw hole formed in c is formed, and set screws 2g and 2g are screwed. The set screw 2g, 2g
Thus, the shaft 2c can be firmly fixed to the bearings 2e, 2e. The shaft 2c attached to the substantially cubic storage case 2a can be attached to and detached from the storage case 2a, and the shaft stoppers 2d and 2d are also detachable. FIGS. 6 to 8 are views showing a state in which the rotating member housed in the housing case of the housing portion of the cargo fall prevention device for a freight vehicle according to the present invention is turned and protruded. FIG. 6 is a front view of a state in which the rotating member housed in the housing case of the cargo fall prevention device for a freight vehicle according to the present invention is rotated to project above the flange. FIG. 7 is a left side view thereof, and FIG. 8 is a right side view thereof protruding upward. As shown in FIG. 6 to FIG.
Is rotatably attached to a shaft 2c at the upper left of the storage case 2a. The rotating member 4 is connected to the shaft 2c.
Around the center. As shown in FIG. 6, when the push button 3a is pushed in the direction of arrow b, the portion of the rotating member 4 where the protruding piece 4i is located rotates together with the locking pin 4a in the direction of arrow c, and the upper surface of the flange 2b is turned on. It becomes a state protruding from 2h. As shown in FIG. 8, the front wall 4b of the rotating member 4
Has a through hole 4j having a diameter into which the locking pin 4a can be inserted.
Are drilled. The locking pin 4a enters and exits the through hole 4j. FIG. 9 is a right side view showing a state in which the rotating member stored in the storage case of the storage unit of the cargo fall prevention device for a freight vehicle according to the present invention is further rotated to project above the flange. FIG. As shown in FIG. 9, the rotating member 4 is
b, left wall 4k, right wall 41, front holding plate 4f and rear holding plate 4
g, and is formed in a substantially cubic shape. The front and rear holding plates 4f and 4g are attached between the left wall 4k and the right wall 4l in parallel upward and downward. Reference numeral 4c shown in FIG. 9 denotes a locking pin 4a.
Shows a hollow cylindrical tube through which a hollow cylindrical tube 4 is inserted.
A screw 4d is provided with a set screw 4d screwably attached to the cylindrical tube 4c, and is used to fix the locking pin 4a at a desired position by rotating the set screw 4d. Code 4e
Indicates a spring. FIGS. 10 and 11 are sectional views of a cargo fall prevention device for a freight vehicle according to the present invention. That is, FIG. 10 is a longitudinal sectional view along line AA in FIG. 1, and FIG. 11 is a longitudinal sectional view along line BB in FIG. FIG. 10 is a sectional view showing a state in which the rotating member 4 is completely stored in the storage case 2a of the storage section 2. In this state, the tip of the locking pin 4a housed in the cylindrical tube 4c is locked to the rear end 3e of the cylindrical body 3b. As shown in FIG. 10, the cylindrical tube 4c containing the locking pin 4a is fixed to the rotating member 4 by front and rear holding plates 4f and 4g attached to the rotating member 4. A spring 4h is housed in the cylindrical tube 4c, and a locking pin 4a is inserted so as to push the spring 4h deep into the cylindrical tube 4c. A spring 3c is housed in the cylindrical body 3b, to which the push button 3a is attached so as to be able to be pushed, so as to wrap around the tip of the push button 3a, and the push button 3a always exerts a repulsive force of the spring 3c. Is pushed outward by A spring 4e is wound around the shaft 2c. The upper end of the spring 4e is engaged with the lower surface of the upper wall 4m, and the lower end of the spring 4e is engaged with the inner surface of the storage case 2a. The rotating member 4 is pushed up in the direction of arrow c by the resilience of the spring 4e. Since the rotating member 4 is in a state of being pushed up in the direction of arrow c, when the push button 3a of the operation section 3 is pressed, the tip of the push button 3a is fixed to the locking pin attached to the rotating section 4. When it hits and pushes in the tip of 4a, the tip of this locking pin 4a comes off from the rear end 3e of the cylindrical body 3b which is locked. When the locking pin 4a is disengaged from the rear end 3e, a part of the rotating member 4 is disengaged from the spring 4 wound around the shaft 2c.
e, the upper surface 2 of the flange 2b
h protrudes above the horizontal plane. As shown in FIG. 11, when the tip of the locking pin 4a is disengaged from the rear end 3e of the cylindrical body 3b and turns upward,
The portion of the pivoting member 4 where the protruding piece 4i is formed pivots most upward, and the upper wall 4m is inclined. FIGS. 12 to 15 are views showing a state in which the cargo fall prevention device for a freight vehicle according to the present invention is attached to a rear part of a cargo bed of a freight vehicle. As shown in FIG.
Attach it to the rear end and fix it. Then, as shown in FIG. 12, with the open / close door 5d of the freight car loading part 5a opened, the luggage 5b
c. At this time, the rotating member 4 of the cargo fall prevention device 1 for a freight vehicle is stored in the storage case 2a of the storage unit 2 and is flat. As shown in FIG. 13, when the door 5d is closed after the loading of the baggage 5b is completed, the push button 3a hits the back of the door 5d, and the push button 3a is pushed. The rotating member 4 housed in the rotating member 4 rotates, and the portion of the protruding piece 4i rotates upward. Even if the freight vehicle runs in such a state,
Since the lower end of the luggage 5b is placed on the upper surface of the upper wall 4m of the rotating part 4, the luggage on the luggage carrier 5c does not move behind the luggage carrier 5c of the freight vehicle. FIG. 14 is a diagram showing a state in which the opening and closing door 5d is opened to carry out the luggage 5b. The cargo fall prevention device 1 for a freight vehicle is provided with a handle 5e and an opening / closing door 5d.
Is opened, the rotating part 4 projects out of the storage case 2a of the storage part 2 and remains in an inclined state. Therefore, the load 5b is prevented from moving by the inclined upper surface of the rotating member 4, so that the load 5b does not slip and can prevent the cargo from falling. FIG. 15 is a view showing a state in which the upper part of the rotating part of the cargo fall prevention device for a freight vehicle is stored in the holding storage part by using a hand in order to carry out the load. The rotating member 4 projecting upward is stored in the storage case 2 of the storage unit 2.
By pressing down and storing it in a, it becomes flat, so that the luggage 5b of the luggage carrier 5c can be carried out by a forklift or the like. As described above, the cargo fall prevention device for a freight vehicle according to the present invention has the following advantages. First, when unloading cargo using a lift roller conveyor or a pallet loader on a cargo bed, a manual trigger type cargo stopper installed at the end of an existing roller conveyor. Even if you forget the operation of the cargo, the cargo is safely moved to the loading platform opening where the cargo is taken out, and the "cargo fall prevention device for cargo vehicles" of the present invention reliably stops the cargo. Can be. Secondly, when loading cargo and moving the cargo to the carrier using a roller conveyor instead of a forklift, when the "cargo fall prevention device for cargo vehicles" of the present invention interrupts the movement, It can be easily stored by hand. Third, the "cargo fall prevention device for a freight vehicle" of the present invention has a simple structure, so that parts can be replaced.
Maintenance and inspection are easy, and it can be easily attached to conventional cargo vehicles.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view of a cargo fall prevention device for a freight vehicle according to the present invention. FIG. 2 is a left side view of the cargo fall prevention device for a freight vehicle according to the present invention. FIG. 3 is a right side view of the cargo fall prevention device for a freight vehicle according to the present invention. FIG. 4 is a plan view of a cargo fall prevention device for a cargo vehicle according to the present invention. FIG. 5 is a bottom view of the cargo fall prevention device for a freight vehicle according to the present invention. FIG. 6 is a front view of a state in which a rotating member housed in a storage case of a storage section of the cargo fall prevention device for a freight vehicle according to the present invention is rotated to protrude above a flange. FIG. 7 is a left side view of a state in which a rotating member housed in a storage case of a storage section of the cargo fall prevention device for a freight vehicle according to the present invention is rotated to protrude above a flange. FIG. 8 is a right side view of a state in which a rotating member housed in a storage case of a storage section of the cargo fall prevention device for a freight vehicle according to the present invention is rotated to protrude above a flange. FIG. 9 is a right side view showing a state in which the rotating member stored in the storage case of the storage unit of the freight vehicle fall prevention device for a freight vehicle according to the present invention is further rotated so as to protrude above the flange. . FIG. 10 is a longitudinal sectional view taken along the line AA in FIG. FIG. 11 is a longitudinal sectional view taken along the line BB in FIG. 6; FIG. 12 is a cross-sectional view when the cargo fall prevention device for a cargo vehicle according to the present invention is attached to a rear portion of a cargo carrier and a rear door is opened. FIG. 13 is a cross-sectional view when the cargo fall prevention device for a cargo vehicle according to the present invention is attached to a rear portion of a carrier of a cargo vehicle and a rear door is closed. FIG. 14 is a cross-sectional view when the cargo fall prevention device for a freight vehicle according to the present invention is attached to a rear portion of a cargo bed of a freight vehicle and a rear door is opened again. FIG. 15 is a cross-sectional view when the cargo fall prevention device for a freight vehicle according to the present invention is attached to a rear portion of a cargo bed of a freight vehicle, a rear door is opened again, and a rotating portion is closed. [Description of Signs] 1 Cargo fall prevention device for freight vehicles 2 Storage section 2a Storage case 2b Flange 2c Shaft 2d Shaft stop 2e Bearing 2g Screw 2h Upper surface 3 Operation section 3a Push button 3b Cylindrical body 3c Spring 3d Side plate 3e Rear end 4 times Moving member 4a Locking pin 4b Front wall 4c Cylindrical tube 4d Set screw 4e Spring 4f Front holding plate 4g Rear holding plate 4h Spring 4i Projection piece 4j Through hole 4k Left wall 4l Right wall 4m Upper wall 5a Freight truck carrier 5b Luggage 5c Luggage carrier 5d Door 5e Handle

Claims (1)

(57) [Claim 1] In a cargo fall prevention device for a freight vehicle comprising a substantially cubic storage case and a rotating member, an upper end of the storage case is outwardly perpendicular to an outer wall surface. A flange is protruded, a bearing having a through hole is provided at the upper left and upper right portions, a spring is housed inside, and a cylindrical body which houses a push button so that the spring wraps around the tip is provided. The case has a front wall, a left wall, a right wall, and an upper wall, a protruding piece is formed, and a hollow cylindrical tube containing a spring and a locking pin in the back is fixed by a front and rear holding plate. The moving member is fixed to the bearing with a shaft stopper and a set screw, the upper end is locked to the lower surface of the upper wall, and the lower end is rotatably attached to a shaft wound with a spring locked to the inner surface of the storage case, The locking pin housed in the cylindrical tube The distal end is locked to the rear end of the cylindrical body, and by pressing a push button, the distal end of the locking pin is disengaged from the rear end of the cylindrical body so that the rotating member is rotated upward from the upper surface of the flange. A cargo fall prevention device for a freight vehicle.