JPH0544676U - Moving platform tilting device - Google Patents

Abstract

(57) [Abstract] [Purpose] The time required to move the cross members of the chassis frame 2 is eliminated, and the moving distance of the loading platform 1 is lengthened.
The inclination angle when the rear end is inclined so as to contact the ground 7 is made small to facilitate loading and unloading of the load. [Structure] A guide rail 3 for inclining a cargo bed is provided between a cargo bed 1 and a chassis frame 2, a height-adjustable stay 5 is provided at a lower front portion of the cargo bed 1, and a lower end of the stay 5 is guided along the guide rail 3. A guide frame 6 which rolls around is mounted on the chassis frame 2, and a supporting frame 9 having a plurality of supporting rollers 8 for supporting and sliding the carrier 1 is pivotally supported on the rear of the chassis frame 2, and the carrier frame is provided between the chassis frame 2 and the carrier 1. A moving cylinder is provided.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a device for tilting and moving a load carrier such as a truck that moves and tilts the load carrier backward when loading and unloading a vehicle or the like by self-propelled driving or towing movement by a winch or the like.

[0002]

[Prior Art]

 Conventionally, as shown in FIG. 5, as shown in FIG. 5, a lower surface 1a of a cargo bed 1 and an upper surface 2a of a chassis frame 2 are used as an apparatus for easily loading and unloading a load by moving a cargo bed back and forth on a chassis frame and inclining it. A guide rail 3 for inclining a loading platform having an inclining guide portion 3a is provided, and a guide roller 6 is attached to a lower end of a stay 5 provided at a front end 1b of the loading platform 1 so as to support rolling on the guide rail 3. Then, when the loading platform 1 is moved to the rear of the vehicle, the guide rollers 6 are guided by the guide rails 3 to tilt the loading platform 1, and the rear end 1c of the loading platform 1 contacts the ground 7 at the maximum tilt position. (See Jitsuko 55-10176).

However, in this configuration, since the guide rail 3 for tilting the cargo bed having the tilt guide portion 3a is provided between the lower surface 1a of the cargo bed 1 and the upper surface 2a of the chassis frame 2, the inclination of the tilt guide portion 3a is reduced. The height H of the lower surface 1a of the loading platform 1 increases due to the rising height a, and the tilt angle when the loading platform 1 is tilted so that the rear end 1c contacts the ground 7 becomes large. When the inclination angle of the loading platform 1 becomes large, when a self-propelled machine or the like is loaded, it cannot be driven by itself and loading becomes difficult.

Therefore, as shown in FIG. 6, it has been proposed that the front end 3b of the guide rail 3 for inclining the bed to enter below the chassis frame 2 to lower the height H of the lower surface 1a of the bed 1. It was

[0005]

Generally, a chassis frame 2 of a vehicle such as a truck is provided with cross members and various parts for ensuring rigidity, and a front end 3b of a guide rail 3 is attached to the chassis frame 2. When the guide rail 3 is attached so as to enter the lower part of the, the cross member and various parts must be moved because they interfere with these cross members and various parts. However, the work of moving the cross member and various parts is troublesome and time-consuming, and the strength of the chassis frame 2 is also reduced. If the guide rail 3 is installed so that the front end 3b of the guide rail 3 enters below the chassis frame 2 without moving the cross member or various parts, the front end 3b of the guide rail 3 is attached to the cross member. It is necessary to retreat to a position where it does not interfere with various parts, and the movement distance of the loading platform 1 is shortened. Therefore, the tilt angle when the loading platform 1 is tilted so that the rear end 1c touches the ground 7 increases. .

The present invention solves the above-mentioned problems in the moving and tilting device of the loading platform, and saves the trouble of moving the cross member of the chassis frame and various parts, and prevents the strength of the chassis frame from lowering. (EN) Provided is a moving and tilting device for a loading platform, which enables a long moving distance of the loading platform, and has a small tilting angle when the loading platform is tilted so that the rear end touches the ground. The purpose is to

[0007]

[Means for Solving the Problems]

 According to the present invention, a guide rail for tilting the loading platform is provided between the loading platform and the chassis frame, a stay whose height can be changed is provided at a lower front portion of the loading platform, and a guide rolling along the guide rail is provided at a lower end of the stay. A support frame with multiple rollers is attached to the rear part of the chassis frame to support and slide the carrier, and a carrier moving cylinder is installed between the chassis frame and the carrier to tilt the carrier. To solve the above problems.

[0008]

[Operation] When loading and unloading a load, the load carrier moving cylinder is reduced in size. Then, the loading platform moves backward on the supporting rollers of the supporting frame pivotally supported on the rear portion of the chassis frame. At this time, the guide roller attached to the lower end of the stay rolls along the guide rail, and the height of the stay increases, so the support frame rotates about the support shaft and the platform is tilted. The rear end touches the ground. When the work of loading and unloading the load onto the bed is completed, the cylinder for moving the bed is extended. Then, the platform moves forward on the supporting rollers of the supporting frame. At this time, the guide roller attached to the lower end of the stay rolls along the guide rail, and the height of the stay decreases, so that the loading platform becomes horizontal and returns to the chassis frame.

The movement distance of the loading platform can be long, the inclination angle when the rear end of the loading platform is grounded to the ground is small, and loading and unloading of the load can be easily performed. In addition, the height of the loading platform on the chassis frame is reduced, which improves stability during traveling.

[0010]

【Example】

 FIG. 1 is a side view of a device for moving and tilting a luggage carrier according to an embodiment of the present invention, and FIG. 2 is an explanatory view showing a state in which the luggage carrier is moved and inclined backward. Here, a guide rail 3 for inclining the bed is provided between the bed 1 and the chassis frame 2 and has an inclined guide portion 3a with a slight rising height, and a stay 5 is provided at the front of the bed 1. Is provided. A guide roller 6 rolling along the guide rail 3 is attached to the lower end of the stay 5. At the rear part of the chassis frame 2, a support frame 9 having a plurality of support rollers 8 for supporting and sliding the platform 1 is rotatably supported by a support shaft 10. Support legs 11 are provided at the bottom of the support frame 9. Between the chassis frame 2 and the loading platform 1, a loading platform moving cylinder (not shown) is provided.

3 and 4 are explanatory views of the configuration of the stay 5. The stay 5 pivotally mounts the guide roller 6 and the operating arm 16 with the roller pin 15 to the lower end of the swing arm 14 pivotally supported by the fixing pin 13 at the front end of the stay base 12 fixed below the front part of the loading platform 1. An upper end of the operating arm 16 is pivotally attached to a front end of a stay cylinder 18 attached to the stay base 12 by a movable pin 17. The movable pin 17 is engaged with a longitudinal hole 19 formed in the station base 12 in the front-rear direction, and when the stay cylinder 18 is expanded or contracted, the movable pin 17 is restricted by the elongated hole 19 to move back and forth. Therefore, the height of the stay 5 changes.

When loading and unloading a load, the bed moving cylinder is reduced. Then, the loading platform 1 moves backward on the support rollers 8 of the support frame 9 pivotally supported on the rear portion of the chassis frame 2. At this time, the guide roller 6 attached to the lower end of the stay 5 rolls along the guide rail 3, and the stay cylinder 18 extends to increase the height of the stay 5, so that the support frame 9 supports the support shaft 9. Rotating about 10, the platform 1 is tilted and the rear end touches the ground 7. When the loading and unloading work of the load onto the loading platform 1 is completed, the loading platform moving cylinder is extended. Then, the loading platform 1 moves forward on the support roller 8 of the support frame 9. At this time, the guide roller 6 attached to the lower end of the stay 5 rolls along the guide rail 3, and the stay cylinder 18 contracts to lower the height of the stay 5, so that the bed 1 is placed in a horizontal state. Then, go back to chassis frame 2.

Since the front end of the guide rail 3 for tilting the loading platform does not enter below the chassis frame 2, the moving distance of the loading platform 1 can be long, and when the rear end of the loading platform 1 is grounded on the ground 7. The angle of inclination of is small, so loading and unloading of cargo can be performed easily. If the amount of change in the height of the stay 5 is increased, the guide rail 3 need not be provided with the inclined guide portion 3a.

[0014]

[Effect of the device]

 As described above, the apparatus for inclining and moving the loading platform of the present invention can save the labor of relocating the cross members and various parts of the chassis frame and prevent the strength of the chassis frame from lowering. In addition, it is possible to take a long distance to move the loading platform, and the tilt angle when the loading platform is tilted so that the rear end is in contact with the ground is small, which makes it easy to load and unload loads. In addition, the height of the platform on the chassis frame is reduced, which improves stability during running.

[Brief description of drawings]

FIG. 1 is a side view of a device for tilting and moving a platform according to an embodiment of the present invention.

FIG. 2 is an explanatory view showing a state in which a luggage carrier is moved and inclined rearward.

FIG. 3 is an explanatory diagram of a configuration of a stay 5.

FIG. 4 is an explanatory diagram of a configuration of a stay 5.

FIG. 5 is an explanatory view of a conventional moving and tilting device.

FIG. 6 is an explanatory view of a conventional moving and tilting device.

[Explanation of symbols]

 1 platform 2 chassis frame 3 guide rail 5 stay 6 guide roller 8 support roller 9 support frame 10 support shaft 18 stay cylinder

Claims (1)

[Scope of utility model registration request] 1. A guide rail for inclining a loading platform is provided between a loading platform and a chassis frame, a stay whose height can be changed is provided at a lower front portion of the loading platform, and a lower end of the stay rolls along the guide rail. A support frame having a plurality of support rollers for supporting and sliding the loading platform at the rear of the chassis frame, and a loading platform moving cylinder provided between the chassis frame and the loading platform. Movement tilting device.