JPH08290737A - Device for loading long material on a truck - Google Patents

Abstract

PURPOSE: To provide a device for loading a long material by bending an inclined arm so as to rotate the arm upwardly and supporting a rear part of a loading frame by a guide device and shifting the loading frame rearward at a load- carrying platform so as to reduce a rotational radius of the arm and a height of a front part of the loading frame from a level of a load-carrying platform while trucking. CONSTITUTION: When a long material 3 is loaded on a load carrying platform 2, a cylinder 8 is contracted in order to rotate a first arm 22 upwardly. A front part of a loading frame 5 is moved along an arc line by pushing up the front part of the loading frame 5 above the load carrying platform 2 and a rear part of the loading frame 5 is slided on a roller 8 so as to incline the loading frame 5 toward a rear side of the platform 2. When the first arm 22 is rotated to a standing position, a restricting member 24 is contacted with a second arm 23 so as to restrict rotation of the first arm 22. Then, the cylinder 8 is contracted and the second arm 23 is rotated together with the first arm 22. Thereby, the rear portion of the loading frame 5 is moved down to a rear side of the platform 2 and the long material 3 is unloaded from the loading frame 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle, such as a freight car or a fire engine, having a cargo bed on a vehicle body, and more particularly to a vehicle having a long board such as a ladder or a plate material loaded on the cargo bed.

[0002]

2. Description of the Related Art Conventionally, a loading frame for loading long objects is provided on the lower part of the rear part of the loading platform on the cargo bed of a freight vehicle carrying long objects, and one end of the loading frame is provided at the front of the loading frame. The loading frame is rotatably supported upward, and the other end of the tilting arm extending in the front-rear direction of the loading platform and having a certain length is also supported, and the tilting arm is rotated by a driving means such as a cylinder to load the loading frame. Long objects are loaded and unloaded by moving the upper part of the platform or backward.

[0003]

However, in the above structure, the vertical movement of the tilting arm having a certain length causes the front portion of the loading frame to move in an arc above the loading platform to load and unload long objects. Therefore, a height for moving the loading frame in an arc is required above the loading platform. Particularly, in a vehicle such as a fire engine that requires work in all places, the height limitation limits the work site, and cannot serve as an emergency vehicle.

In view of the above, the present invention provides a long length in a freight vehicle or the like in which the turning radius of the tilting arm for loading and unloading a long object is made small so that the height from the bed during the movement of the front portion of the loading frame is made as low as possible. An object of the present invention is to provide a measure handling device.

[0005]

SUMMARY OF THE INVENTION The present invention is intended to solve the above-mentioned problems, and in a freight vehicle or the like having a loading platform mounted on a vehicle body, the upper portion of the loading platform is provided with a long movable portion to the lower rear portion of the loading platform. A loading frame for loading scales is provided, a guide device for supporting the loading frame so as to be movable rearward is provided between the rear portion of the loading frame and the loading platform, and a predetermined unit is provided between the front portion of the loading frame and the loading platform. A tilting arm capable of bending up to an angle is rotatably provided, and a drive means for turning the tilting arm is provided on the loading platform.

According to a second aspect of the present invention, in a freight vehicle or the like in which a loading platform is provided on the vehicle body, a loading frame for loading long objects that is movable to a lower rear portion of the loading platform is provided on the upper loading platform.
A guide device that supports the loading frame so as to be movable rearward is provided between the rear portion of the loading frame and the loading platform, and a tilting arm that can bend to a predetermined angle is rotated between the front portion of the loading frame and the loading platform. A driving means for rotating the tilting arm is provided on the loading platform, and the tilting arm is bent when the tilting arm reaches a predetermined angle by the rotation of the tilting arm. It is characterized in that it is provided with a lock device for holding the state and for releasing the refraction holding when a part of the tilting arm interferes with the bed.

[0007]

When loading a long object on the loading platform, the tilting arm is bent upward by the drive means while being bent and the front portion of the loading frame is pushed up, and the rear portion of the loading frame is supported by the guide device and the loading platform is supported. To the back of. When the tilting arm is further rotated with the bending angle of the tilting arm reaching a predetermined angle, the entire tilting arm is rotated and the entire loading frame is tilted behind the loading platform and the rear end of the loading frame is moved. Close to the ground, you can unload long objects from the loading frame in that state. When loading long items, reverse the above procedure.

[0008]

Embodiments of the present invention will now be described with reference to the drawings.
Reference numeral 1 is a body of a freight vehicle or a fire engine, and a cargo bed 2 is provided on the body 1, and various objects for transporting objects and digestion are placed on the cargo bed 2. Above the cargo bed 2, a cargo handling device 4 for loading and unloading long objects 3 such as ladders from above the cargo bed 2 to the rear of the cargo bed 2 is provided. The cargo handling device 4 includes a loading frame 5 for loading the long objects 3,
A guide device 6 that slidably supports the rear portion of the loading frame 5, a rotatable tilting arm 7 that moves the front portion of the loading frame 5 in an arc, a cylinder 8 that is a driving means for rotating the tilting arm 7, and a tilting arm. The lock device 9 holds the refracting state of the tilting arm 7 and holds the refracting state of the tilting arm 7.

The loading frame 5 has a main body 10 formed in a lattice shape, a pair of horizontal frames whose both ends are fixed by a front standing frame 11 and a rear standing frame 12 which are erected on both sides of the main body 10. The loading frame 5 includes a main body 13, a flat plate-shaped fixing portion 14 which is provided upright on the front portion of the main body 10 in an upwardly inclined rearward direction, and projecting portions 15 which extend in the longitudinal direction of both side portions of the main body 10. The long objects 3 are loaded on the top. The pair of horizontal frames 13 prevent the long object 3 from falling from both sides of the loading frame 5, and the fixing portion 14 engages a part of the front portion of the long object 3 and is provided at the rear portion of the loading frame 5. The front part and the rear part of the long object 3 are fixed on the loading frame 5 together with the secured device (not shown). In addition, the overhang portion 15 is mounted on the loading frame 5 by the guide device 6 described later.
It is designed to prevent the jumping up of.

The guide device 6 is provided between the rear portion of the loading frame 5 and the loading platform 2 and, as shown in FIG. 6, is supported upright on the loading platform 2 below both ends of the loading frame 5 and has a substantially U-shaped cross section. The member 16, a pair of rollers 18 axially supported by the support rods 17 supported by the support members 16, and a flange 19 fixed to the support rods 17 on the outer side surfaces of the rollers 18.
And a pair of auxiliary rollers 21 axially supported by the vertical portion of the guide member 20, and a pair of auxiliary rollers 21 pivotally supported on the outer side of the supporting member 16 so as to be swingable. 3 The rear portion of the loading frame 5 is slidably supported by the rollers 18 during unloading, and the flange 1
At 9, the stacking frame 5 is prevented from moving laterally, and the guide member 20 is engaged with the projecting portion 15 to prevent the stacking frame 5 from jumping up. The auxiliary roller 21 guides the loading frame 5 to the rear of the loading platform 2 by inclining the guide member 20 according to the inclination of the loading frame 5.

The tilting arm 7 is rotatably provided between the front portion of the loading frame 5 and the loading platform 2, and has a pair of first arms 22 pivotally supported by the front portion of the loading frame 5 and the loading platform 2. A pair of second arms 23 axially supported on the upper side is formed so as to be bendable, and the first arm 22 is rotated to rotate the loading platform 2
By moving the front portion of the loading frame 5 in an arc above,
The rotation of the arm 23 causes the first arm 22 to move above the loading platform 2.
It is designed to move in an arc. Reference numeral 24 denotes a regulating member that is erected on the side of the first arm 22 near the connecting portion between the first arm 22 and the second arm 23, and the rear side surface 25 of the regulating member 24 contacts the upper surface of the second arm 23. By doing so, the tilting arm 7 is restricted from being bent at a predetermined angle or more. As a result, the tilting arm 7 rotates while maintaining the bent state, so that the height of the front portion of the loading frame 5 from the loading platform 2 during movement can be reduced. Reference numeral 26 is a stopper fixed to the upper portion of the loading platform 2 for restricting downward rotation of the second arm 23.

The locking device 9 includes an engaged member 27 provided on the regulating member 24 as shown in FIGS. 7 and 8.
Engaging member 28 pivotally supported by the second arm 23
And a spring 29 connecting the engaging member 28 and the second arm 23, and a ring-shaped push-up inserted into the engaging member 28 so as to penetrate the second arm 23 and project above the luggage carrier 2. When the tilting arm 7 is rotated, the bending state of the tilting arm 7 is reliably maintained by the engagement between the engaging member 28 and the engaged member 27 due to the pulling force of the spring 29, and at the same time, the pushing force is increased. When the engaging member 28 and the engaged member 27 are disengaged from each other due to the interference between the lifting member 30 and the luggage carrier 2, the refraction holding of the tilting arm 7 is automatically released.

The cylinder 8 has its base end pivotally supported on the upper part of the loading platform 2 and its tip end pivotally supported on a connecting portion 31 for connecting the pair of first arms 22, and the cylinder 8 is contracted to tilt the arm. 7 is rotated to move the loading frame 5 to the rear of the loading platform 2 and the cylinder 8 is extended to rotate the tilting arm 7 to move the loading frame 5 to the upper portion of the loading platform 2.

The operation of the present invention will be described below with the above-mentioned structure. When the long object 3 on the loading platform 2 is unloaded, FIG.
Cylinder 8 in the extended state as shown in FIG.
2 is rotated upward. At that time, the second arm 23 is pressed downward by the weight of the loading frame 5 and the like. By the rotation of the first arm 22, the front part of the loading frame 5 is pushed up above the loading platform 2 and moves in an arc, and the rear part of the loading frame 5 slides on the rollers 18 and tilts to the rear of the loading platform 2. Due to the inclination of the loading frame 5, the auxiliary roller 21 at the rear portion of the vertical portion is pushed downward, the guide member 20 swings backward, and the horizontal portion of the guide member 20 in the substantially horizontal position gradually inclines rearward. Thereby, the guide member 20
The horizontal portion is always parallel to the projecting portion 15 of the loading frame 5, so that the loading frame 5 can be prevented from jumping up. Further, since the flange 19 contacts both side surfaces of the loading frame 5, lateral movement of the loading frame 5 can be prevented. Further, the long object 3 can be prevented from falling from the side of the loading frame 5 by the lateral frame 13 on the side of the loading frame 5.

As shown in FIG. 4, when the first arm 22 pivots to a substantially upright position, that is, to a predetermined bending angle, the regulating member 24.
The rear side surface 25 contacts the upper surface of the second arm 23 and restricts the refraction of the first arm 22. At that time, the engaging member 28 is held in the upward rotating position, that is, the disengaging position by the pushing force of the pushing member as shown in FIG. When the cylinder 8 is further contracted from this state, the second arm 23 starts rotating together with the first arm 22 because the refraction of the first arm 22 is restricted. At that time, as the second arm 23 rises, the pulling force of the spring 29 overcomes the pushing force of the pressing member and the loading platform 2, and the engaging member 28 rotates downward and is fixed to the regulating member 24 as shown in FIG. The bent state of the tilting arm is securely held by being engaged with the engaged member 27. As a result, the rear portion of the loading frame 5 moves to the lower rear part of the loading platform 2 as shown in FIG. 5, and the fixing portion 14 for fastening the long object 3 and the fastening device are released to unload the long object 3 from the loading frame 5. be able to.

Next, a case where the long objects 3 are loaded on the bed 2 will be described. The long object 3 is loaded on the loading frame 5 which is located at the lower rear part of the loading platform 2 in an inclined shape, and the front and rear portions of the long object 3 are fixed by the fixing portion 14 and the lashing device as shown in FIG.
Is secured to the loading frame 5. After fixing the long object 3 to the loading frame 5, the cylinder 8 in the contracted state is extended and the first arm 22 is pushed up. At that time, since the engaging member 28 is engaged with the engaged member 27, the second arm 23
Starts rotating together with the first arm 22, and the loading frame 5
Moves in an arc toward the front of the loading platform 2 while sliding on the rollers 18 of the guide device 6.

Thereafter, when the second arm 23 approaches the upper part of the loading platform 2, the lower part of the push-up member of the engaging member 28 contacts the upper part of the loading platform 2 and pushes up the engaging member 28, so that the engaging member 28 pulls the spring 29. To rotate upwards against the second
When the arm 23 comes into contact with the stopper 26 on the platform 2, the engagement between the engagement member 28 and the engaged member 27 is released, and the rotation of the second arm 23 is also restricted. As a result, the first arm 2
The rotation regulation of No. 2 is limited to the regulation member 24, and the rotation is possible.

When the cylinder 8 is further extended from this state, the first arm 22 rotates together with the loading frame 5,
As shown in FIG. 1, when the first arm 22 pivots to the laid-down state, the cylinder 8 is in the most extended state. As a result, the loading frame 5 can be loaded onto the upper part of the loading platform 2.

[0019]

INDUSTRIAL APPLICABILITY As described above, according to the present invention, a guide is provided on the upper part of the loading platform of a freight car or the like so that the loading frame can be moved rearward, and the loading frame is supported between the rear part of the loading frame and the upper part of the loading platform so as to be movable rearward. A tilting arm capable of bending is provided between the front part of the loading frame and the loading platform so as to be rotatable, and a driving means for rotating the tilting arm is provided on the loading platform. Since the rotation range of the arm can be small and the height of the loading frame can be made as low as possible, loading and unloading work can be performed at any place.

According to the second aspect of the present invention, a locking device is provided at the bending portion of the tilting arm to securely hold the predetermined angle and automatically release the bending holding. Can be performed safely and reliably.

[Brief description of drawings]

FIG. 1 is an overall view showing a cargo handling device of the present invention.

FIG. 2 is an AA diagram of FIG.

3 is a BB diagram of FIG. 2. FIG.

FIG. 4 is a state diagram illustrating a middle of rotation of the cargo handling device.

FIG. 5 is a state view in which the cargo handling device is rotated upward.

6 is an enlarged cross-sectional view taken along line CC of the guide device in FIG.

FIG. 7 is an enlarged view showing an engaged state of the lock device.

FIG. 8 is an enlarged view showing a disengaged state of the lock device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 vehicle body 2 loading platform 3 long object 5 loading frame 6 guide device 7 tilting arm 8 cylinder (driving means) 9 locking device

Claims (2)

[Claims] 1. In a freight car or the like having a loading platform provided on a vehicle body, a loading frame for loading long movable articles is provided on an upper portion of the loading platform at a lower rear portion of the loading platform, and a rear portion of the loading frame and a loading platform. A guide device for supporting the loading frame so as to be movable rearward is provided between the loading frame and a tilting arm capable of bending to a predetermined angle between the front portion of the loading frame and the loading platform so as to be rotatable. Is a long object loading and unloading apparatus, which is provided with a drive means capable of rotating a tilting arm. 2. A freight vehicle or the like having a loading platform provided on a vehicle body, wherein a loading frame for loading a long object that is movable to a lower rear portion of the loading platform is provided at an upper portion of the loading platform, and a rear portion of the loading frame and a loading platform. A guide device for supporting the loading frame so as to be movable rearward is provided between the loading frame and a tilting arm capable of bending to a predetermined angle between the front portion of the loading frame and the loading platform so as to be rotatable. Is provided with drive means for rotating the tilting arm, and the tilting arm holds the tilting arm in a bent state when the bending angle of the tilting arm reaches a predetermined angle by the rotation of the tilting arm, and also the tilting arm. A long object loading and unloading apparatus for a freight vehicle or the like, which is provided with a lock device that can release the refraction hold when a part of the cargo bed interferes with the cargo bed.