JPH0535472U - Lorry support leg actuation device - Google Patents

Abstract

(57) [Summary] [Purpose] Automatically and reliably arrange the support legs between the storage position and the support position according to the sliding movement of the cargo box. A supporting leg 10 is biased by a biasing member 22 to rotate toward a supporting position B, and is held at the supporting position B by a stopper 23, and the supporting leg 10 is rotatable about a tilting frame 2. The one end portion 25a of the link member 25 supported by the link member 25 is connected via the connecting member 26, and when the load box 5 is stored and arranged on the tilting frame 2, the other link member 25 A pressing member 51 is provided which presses the end portion 25b to rotate the support leg 10 to the storage position A side against the biasing force of the biasing member 22.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a supporting leg actuating device for actuating a supporting leg provided at a rear portion of a vehicle frame in a freight vehicle in which a luggage box is slidable in a front-back direction on a tilting frame.

[0002]

[Prior Art]

 Conventionally, a tilting frame is provided on the vehicle frame so as to be tiltable around the rear end, and a load box is slidably mounted back and forth on the tilting frame and tilted by a dump cylinder interposed between the vehicle frame and the tilting frame. There is provided a freight vehicle in which a frame and a luggage box are tilted, and a luggage cylinder is slid in a front-back direction on a support frame by a slide cylinder interposed between the tilting frame and the luggage box. A support leg for supporting the vehicle frame is rotatably provided at a supporting position and a retracted position at a rear end portion of a vehicle frame of this freight vehicle, and after tilting the luggage box at an appropriate angle, it slides rearward. At that time, the supporting legs were placed at the supporting position to support the vehicle frame and safely slide the luggage box.

[0003]

[Problems to be solved by the device]

 However, in the above conventional freight vehicle, the support legs are configured to rotate between a support position and a rotation position by, for example, expansion and contraction of a cylinder connected between the support legs and the vehicle frame, and thus the luggage box. At the start and end of the work of sliding the slide legs, the support legs must be rotated to expand and contract one by one, which is time-consuming and may cause the operator to forget to rotate the support legs. ..

[0004]

[Means for Solving the Problems]

 In the supporting leg actuating device for a freight vehicle of the present invention, a tilting frame is provided on a vehicle frame so as to be tiltable around a rear hinge, and a luggage box is provided on the tilting frame so as to be slidable forward and backward, and at the rear end of the vehicle frame. In a freight vehicle in which a supporting leg for supporting the vehicle frame is rotatably provided between a supporting position and a retracted position, the supporting leg is biased by a biasing member to pivot toward the supporting position and a stopper is provided. Is held at the supporting position by the support leg, and one end of a link member rotatably supported by the tilting frame is connected to the support leg via a connecting member, and the load box is provided with the load box. A pressing member is provided that presses the other end of the link member to rotate the support leg to the storage position side against the urging force of the urging member when it is stored and arranged on the tilting frame. Is.

[0005]

[Action]

 When the packing box is stored on the tilting frame, the pressing member provided on the packing box presses the other end of the link member to move the support leg from the supporting position against the biasing force of the biasing member. The support legs are automatically placed in the storage position and the supporting position according to the sliding movement of the luggage box by rotating the support legs.

[0006]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a schematic configuration of a freight vehicle to which the present invention is applied.

In FIG. 1, reference numeral 2 is a tilting frame that is tiltably provided on a vehicle frame 1, and the tilting frame 2 is centered on a pivot 3 (rear hinge) via a bracket 2 a fixedly mounted on the tilting frame 2. It is tiltably supported. A luggage box 5 is mounted on the tilting frame 2 so as to be slidable back and forth. A dump cylinder (not shown) for tilting the tilt frame 2 is provided between the vehicle frame 1 and the tilt frame 2, and a slide cylinder 6 for sliding the load box 5 back and forth is provided between the tilt frame 2 and the load box 5. There is. Then, by extending the dump cylinder and the slide cylinder 6, the load box 5 is tilted at an appropriate angle as shown in FIG. 1 so that the rear end of the load box 5 moves on the tilting frame 2 to a position close to the ground. Can slide backwards.

Then, in a state where the luggage box 5 is slid backward, a pair of left and right step plates 4 are installed between the rear end of the luggage box 5 and the ground, so that a vehicle or the like can be loaded and unloaded. ..

Support rollers 9 are provided on both sides of the rear end of the bottom of the luggage box 5, and support the rear end of the luggage box 5 when the luggage box 5 is slidably arranged as described above. It is supported by rollers 9.

Reference numeral 8 in FIG. 1 denotes a rear door which is pivotally supported at the rear end of the luggage box 5 so as to be openable and closable around an upper hinge or a lower hinge.

Support legs 10 are provided at the rear end of the vehicle frame 1.

The support legs 10 support the rear end of the vehicle frame 1 when the luggage box 5 slides rearward. As shown in FIG. 2, brackets 11 are provided on the left and right of the rear end of the vehicle frame 1. It is composed of a leg body 12 rotatably supported via a roller 13 and a roller 13 connected between the front end portions of the left and right leg bodies 12, and the rear leg body 12 is supported by a supporting leg actuating device 20. It is configured to have a support position B that supports the end portion and a storage position A that is pivotally arranged forward.

The supporting leg actuating device 20 is for arranging the supporting leg 10 in the supporting position B and the storing position A based on the sliding movement of the luggage box 5. Hereinafter, the supporting leg actuating device 20 will be described. This will be described with reference to FIGS. 2 and 3.

A spring 22 is connected to an intermediate portion of the support leg 10 and a fastening member 21 fixedly provided on the vehicle frame 1 side, and the support leg 10 is always rotated to the support position B side by the spring 22. It is urged in the direction to make it.

The bracket 24 is provided with a stopper 23 that holds the support leg 10 biased by the spring 22 at the support position B.

On the other hand, a link member 25 is provided near the rear end of the tilting frame 2 via a bracket 24 so as to be rotatable around a pivot 25c. One end 25a of the link member 25 is connected to the base end of the support leg 10 via a connecting rod 26.

Further, at the bottom of the packing box 5, when the packing box 5 is stored and arranged on the tilting frame 2, the other end 25 b of the link member 25 is pressed to support the support leg 10 to the spring 22. There is provided a pressing member 51 that rotates to the storage position A side against the urging force of.

Further, a stopper 27 is provided on the bracket 24 in front of the link member 25 so as to be rotatable around a pivot 27c. The stopper 27 is constantly urged by a spring 28 connected to the stopper 27 and the bracket 24 so that an abutting portion 27a provided in the middle of the stopper 27 presses the link member 25 from the front side. The contact portion 27a presses the link member 25 from the front when 10 is placed at the support position B, thereby preventing the link member 25 from rotating in the counterclockwise direction. Has been done.

Then, at the bottom of the packing box 5, when the packing box 5 is stored and arranged on the tilting frame 2, the upper end portion 27 b of the stopper 27 is pressed to force the stopper 27 to urge the spring 28. A release member 52 is provided that separates the link member 25 from the link member 25.

Next, the operation of the support leg actuating device 20 configured as described above will be described.

As shown in FIG. 1, when the load box 5 is tilted appropriately from the stored state and then slid rearward, the slide cylinder 6 is extended after the load box 5 is tilted appropriately by the dump cylinder. When the rearward sliding of the luggage box 5 is started by the operation, the pressing member 51 of the luggage box 5 moves backward together with the luggage box 5, and the pressing member 51 moves rearward so that the link member 25 causes the spring 22 to move. 2 is rotated in the clockwise direction by the urging force of the support leg 10 and the support leg 10 is rotated from the storage position A to the support position B in contact with the stopper 23 and is held at this position (one point in FIG. 2). See the chain line). At this time, since the release member 52 of the luggage box 5 is also moving rearward, the contact portion 27a of the stopper 27 presses the link member 25 from the front by the urging force of the spring 28. Is prevented from rotating in the counterclockwise direction, and the support leg 10 is firmly held at the support position B in combination with the urging force of the spring 22.

When the luggage box 5 is slid backward and is returned to the original state as described above, the slide cylinder 6 is retracted and the luggage box 5 is slid forward. The releasing member 52 of the cargo box 5 contacts the upper end portion 27b of the stopper 27, and separates the stopper 27 from the link member 25 against the urging force of the spring 28.

The pressing member 51 of the luggage box 5 presses the other end portion 25b of the link member 25 with a slight deviation from the separating operation from the link member 25 by the stopper 27 to rotate the link member 25 in the counterclockwise direction. To move. As a result, the support leg 10 connected to the link member 25 via the connecting rod 26 rotates from the support position B to the storage position A side against the urging force of the spring 22, and is placed in the storage position A.

In this freight vehicle, by extending only the dump cylinder without extending the slide cylinder 6, the luggage box 5 can be tilted to the maximum inclination angle without sliding, and sand or gravel can be tilted. It can also be used for loading such as.

[0026]

[Effect of the device]

 As described above, according to the present invention, with a simple structure, the support legs can be automatically and reliably arranged in the storage position and the support position according to the sliding movement of the luggage box, which is safe and secure. is there.

[Brief description of drawings]

FIG. 1 is a side view showing a schematic configuration of a lorry.

FIG. 2 is a side view showing a configuration of a supporting leg actuating device according to the present invention.

FIG. 3 is a front view showing a configuration of a supporting leg actuating device according to the present invention.

[Explanation of symbols]

 1 Vehicle Frame 2 Tilt Frame 5 Packing Box 22 Spring (Biasing Member) 23 Stopper 25 Link Member 26 Connecting Rod (Connecting Member) 51 Pressing Member A Storage Position B Supporting Position

Claims (1)

[Scope of utility model registration request] 1. A tilting frame is provided on a vehicle frame so as to be tiltable about a rear hinge, a luggage box is provided on the tilting frame so as to be slidable forward and backward, and the vehicle frame is supported at a rear end portion of the vehicle frame. In a freight vehicle having support legs rotatably provided in a support position and a storage position, the support legs are biased by a biasing member to rotate toward the support position and are held at the support positions by stoppers. , One end of a link member rotatably supported by the tilting frame is connected to the supporting leg via a connecting member, and the load box is stored and arranged on the tilting frame in the load box. At this time, there is provided a pressing member for pressing the other end of the link member to rotate the support leg to the storage position side against the urging force of the urging member. Actuator.