JPH0450039A - Truck - Google Patents

Abstract

PURPOSE:To horizontally lower a body on the ground and load a cargo on the body easily and safely by sliding a lift frame backward, lifting it, and lifting a lift arm pivotally supported on the lift frame. CONSTITUTION:When a cargo, e.g., a vehicle, is to be loaded, a hydraulic motor 28 is driven, a lift frame 3 is slid backward along the second guide rail 2 via sprockets 20, 21 and a chain 23, the lift frame 3 is slid backward along the first guide rail 6, its front side is lifted, and the lift frame 3 is tilted backward. A lift cylinder 12 is extended, a lift arm 4 is tilted backward, a body 5 is slid backward, and the front end of the body 5 is lowered. The body 5 is lowered on the ground nearly horizontally, and the vehicle is loaded on the body 5. The body 5 is lifted and advanced, and loading is completed.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a truck whose body can be lowered horizontally onto the ground and loaded with cargo.

[Conventional technology]

Conventionally, freight vehicles have been constructed by sliding the body diagonally from the subframe along guide rails, passing the body diagonally between the ground and the subframe, and loading cargo onto the body. There is (Utility Model Publication No. 61-43623).

[Problems to be Solved by the Invention] However, the conventional freight vehicle described above has the following drawbacks. ■ Since the body is tilted relative to the ground and cargo is loaded onto the tilted body, the following problems occur. (A) It is difficult to load luggage because it is placed on the tilted body. (B) When loading a vehicle onto the body, the vehicle will be tilted forward, making it easy for the driver to feel anxious while driving.
It is not possible to ride the vehicle all the way to the front end of the body. (C) When the driver gets off the vehicle loaded on the body, it is dangerous because the driver has to get off on the narrow body that is floating diagonally above the ground. (D) When securing cargo to the body, it is difficult to secure the cargo to the body because the tenon is diagonally above the ground. (E) Since the body is inclined diagonally to the ground, it is difficult to load cargo from the side of the body. Also, in the case of a vehicle, loading onto the body from the side is not possible. SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a freight vehicle that can be loaded with cargo by lowering the body horizontally onto the ground.

[Means to solve the problem]

A first invention includes: a first guide rule fixed to a chassis frame, the rear part of which is higher than the front part; a horizontal second guide rail fixed to the chassis frame; It has a rear guided part that is guided in the front and back direction by the second guide rail, and a front guided part that is guided along the first guide rail, so that when sliding rearward, the front guided part is a lift frame that is lifted by a first guide rail and tilts rearward; a lift frame driving means that slides the lift frame with respect to the guide rail; and a lift frame that is pivotally supported by the lift frame and tiltable with respect to the lift frame. a lift arm; a lift arm driving means for tilting the lift arm with respect to the lift frame; mounted on the chassis frame, having a front side pivotally supported by the lift arm, and sliding the lift frame rearward; The vehicle is characterized by comprising a body that is lowered to the ground in a substantially horizontal manner by tilting the lift arm rearward. A second invention provides a slide frame that is slidable in the front-rear direction with respect to a guide rail mounted on a chassis frame, a slide frame drive means that slides the slide frame in the front-rear direction with respect to the guide rail, and a slide frame that is slidable in the front-rear direction with respect to the guide rail. a lift frame whose rear portion is pivotally supported by a lift frame and which is tiltable with respect to the slide frame; a lift frame driving means attached to the slide frame for tilting the lift frame with respect to the slide frame; a lift arm that is pivotably supported and capable of tilting with respect to the lift frame; a lift arm drive means that tilts the lift arm with respect to the lift frame; The tenon is pivotably supported and lowered to the ground in a substantially horizontal manner by sliding the slide frame rearward, tilting the lift frame rearward, and tilting the lift arm rearward. It is characterized by

[Effect]

In the first invention, first, the lift frame is slid rearward with respect to the chassis frame by the lift frame driving means. Then, the front guided part of the lift frame, which is guided along the first guide rail whose rear part becomes higher, is lifted, and the rear part of the lift frame, which is guided along the second guide rail, is raised. It tilts backwards around the guide part. Next, the lift arm pivotally supported by the lift frame is tilted rearward with respect to the lift frame by the lift arm driving means. Then, the body whose front side is pivotally supported by the lift arm is lowered from the chassis frame as the lift arm tilts rearward, and is lowered substantially horizontally onto the ground. Thereafter, cargo is loaded onto the body which is lowered horizontally to the ground and secured. Next, the lift arm is tilted forward by the lift arm driving means to place the body on the chassis frame. Furthermore, the lift frame is slid forward by the lift frame driving means, and the body is slid forward of the Nyang frame together with the lift frame and the lift arm. Then, the front guided portion of the lift frame lowers along the first guide rail, and the lift frame, lift arm, and body return to a horizontal state. In the second invention, first, a lift frame whose rear part is pivotally supported by a slide frame that can slide in the front and back direction with respect to the guide rail is moved rearwardly with respect to the slide frame I by a lift frame driving means attached to the slide frame. tilt it to Next, the slide frame is slid backward with respect to the guide rail by the slide frame driving means. Furthermore, a lift arm pivotally supported by the lift frame is tilted rearward with respect to the lift frame by a lift arm driving means. Then, the body whose front side is pivotally supported by the lift arm is lowered from the chassis frame as the lift arm tilts, and is lowered almost horizontally onto the ground. Thereafter, cargo is loaded onto the body that has been lowered to the ground and secured. Then, by the lift arm driving means,
Tilt the lift arm forward and place the body on the chassis frame. Further, the slide frame driving means slides the slide frame forward of the palm frame, and together with the slide frame, the slide frame is slid forward of the lift frame, the lift arm, and the chassis frame of the body. Thereafter, the lift frame driving means returns the lift frame to a horizontal state, and returns the lift frame, the lift arm, and the body to a horizontal state.

【Example】

Hereinafter, the present invention will be explained in detail with reference to illustrated embodiments. 9 are explanatory diagrams of the operation of the freight vehicle of the first invention. In Figures 1 to 9, 1 is a frame frame, 2 is a second guide rail that also serves as a subframe, 3 is a lift frame, 4 is a lift arm, 5 is a body, and 6 is a first guide rail consisting of a channel. . The body '-5 can slide along guide rollers 7 provided at the rear of the second guide rail 2. The first guide rail 6 has a front portion lower than the second guide rail 2 and a rear portion higher than the second guide rail 2. The lift frame 3 includes a roller 10 that rolls in the groove of the first guide rule 6 made of the channel and a roller 11 that moves along the second guide rail 2, and when it slides from the front to the rear, it moves backward. When it tilts to the top and slides from the back to the front, it becomes horizontal. A lower rear end of an L-shaped lift arm 4 whose upper end is pivotally connected to the front upper end of the body 5 is pivotally connected to the lift frame 3. As shown in Fig. 6.7.8, the front end of the lift arm 4 is pivotally connected to the front part of the lift frame 3, and the tube of the foot cylinder 12 is pivotally connected to the corner of the lift arm 4. By this operation, the lift arm 4 is tilted with respect to the lift frame 3, so that the body 5 can be placed on or taken down from the palm frame l. The lift frame 3 has a structure shown in FIGS. 10 to 11 so as to be slidable. That is, the second kite rail 2 has a sprocket 20.20 and a sprocket 21.20 at its front and rear ends.
21 is provided, and the chain 2 is attached to this sprocket 20.21.
Kake has passed 3. As shown in FIG. 11, this chain 23 is provided with a chain bracket 25.
is fixed to the shaft 27 of the slide roller II. The sprocket 20 20 is driven by a hydraulic motor 28 fixed to the second guide rail 2 . Therefore, the chain 23 is driven by the hydraulic motor 28.
By moving the bracket 25 back and forth through the
The lift frame 3 can be slid forward and backward on the second guy 1: rule 2. The above sprockets 20, 21, chain 23, chain bracket 2
5 and the hydraulic motor 28 constitute lift frame driving means. Further, as shown in FIGS. 1 to 9, at the rear end of the body 5,
A roller 29 is provided. The freight vehicle having the above configuration is loaded with cargo, such as a car, as follows. First, assuming that this truck is in the state shown in FIG.
, the lift frame 3 is slid backward along the second guide rule 2 via the chain 19 and the chain bracket 25, and the lift frame 3 is slid backward along the first guide rule 6. Lift the side and tilt the lift frame 3 rearward to the state shown in Fig. 2.3.4 and then to the state shown in Fig. 5. Next, the lift cylinder 12 is extended, the lift arm 4 is tilted rearward, the body 5 is slid rearward, and the front end of the body 5 is lowered. As shown in FIGS. 6 and 7, at this time, the roller 29 at the rear end of the body 5 touches the ground, and the body 5 is smoothly retreated from the ground. When the body 5 is lowered to its lowest position, it will be in the state shown in FIG. In this state, the body 5 is lowered almost horizontally onto the ground. Then, a car is loaded onto body 5. In this way, since the vehicle is loaded onto the horizontal body 5, the driver can move the vehicle forward as far as the front end of the body 5, as shown in FIG. 9, without feeling any sense of anxiety. A car can be easily mounted on the body 5. Further, when the driver gets out of the car, the body 5 is horizontal on the ground, so the driver can get out of the car without any danger. Furthermore, a car or other cargo can be attached to this horizontal body 5.
When loading and securing the cargo, the body 5 is in a horizontal state, so the cargo can be easily secured and there is no fear that the cargo will come loose. Moreover, since the cargo is loaded onto the body 5 which is in a horizontal state, the cargo can be easily loaded onto the body 5 not only from the rear but also from the side. Next, the lift cylinder 12 is retracted and the lift arm 4 is
is tilted forward, the body 5 is first raised, and further slid forward along the lift frame 3. After moving the body 5 forward onto the lift frame 3 as shown in FIG. 5, the hydraulic motor 28 is driven to drive the sprocket 20.
, 21, the lift frame 3 is slid forward via the chain 19 and the chain bracket 25, and the front side of the lift frame 3 is lowered by the first guide rail 6 to return the lift frame 3 to a horizontal state.
Set it to the state shown in the figure. In the above embodiment, the lift frame driving means is the hydraulic motor 2.
8. Chain 23. Although the lift frame driving means is configured with sprockets 20 and 21, etc., the lift frame driving means is not limited to this, and may be configured with a rope, a boot, or the like. Further, in the above embodiment, the lift arm driving means is constituted by the lift cylinder I2, but the lift arm driving means is not limited to this, and may be of any type as long as it can tilt the lift arm. In addition, although the lift frame 3 can be slid onto the second guide rail 2 which is a sub-frame,
If there is no subframe, a second guide rail may be provided on the chassis frame. Furthermore, although the hydraulic motor is attached to the subframe, it may also be attached to the chassis frame. Next, the operation explanatory diagrams of the embodiment of the second invention are shown in the 12th to 16th diagrams.
As shown in the figure. In FIGS. 12 to 16, 51 is a chassis frame, 52 is a guide rail that also serves as a subframe consisting of a channel, 53 is a lift frame, 54 is a lift arm, and 55 is a body. The body 55 can slide along guide rollers 57 provided at the rear of the guide rail 52. The above lift frame 53. The lift arm 54 has a structure shown in FIG. 17 to slide the body 55. The tip of the slide cylinder 60, which is pivotally connected to the guide rail 52, is pivotally connected to the slide frame 56. The slide frame 56 includes guide rollers 63 and 64 that roll inside the guide rail 52. Therefore, the slide frame 56 can slide back and forth along the guide rail 52 by the operation of the slide cylinder 60. A lift frame 53 is pivotally connected to the rear portion of the slide frame 56, and a lift cylinder 61, 61 whose one end is pivotally connected to the lift frame 53 is pivotally connected to the front end of the slide frame 56. The lift frame 53 can be tilted relative to the slide frame 53 and the guide rail 52 by the operation of the lift nolinder 616I. A tube of an arm cylinder 65, 65 whose front end is pivotally connected to the front end of the lift frame 53 is pivotally attached to the front part of the L-shaped lift arm 54 whose lower rear end is pivotally connected to the rear of the lift frame 53. However, the lift arm 54 can be tilted with respect to the lift frame 53 by the operation of the arm cylinders 65, 65. A shaft 66 for connecting the body passes through the upper end of the front part of the lift arm 54, and a body 55 is pivotally supported. Further, as shown in FIGS. 12 to 16, a roller 69 is provided at the rear end of the body 5. The freight vehicle having the above configuration is loaded with cargo, such as a car, as follows. First, assuming that this freight vehicle is in the state shown in FIG. 12, the lift cylinder 61 is extended and the lift frame 53 is tilted rearward to the state shown in FIG. 60 and slide the lift frame 53 rearward along the guide rail 52 via the slide frame 56 to the state shown in FIG. 14. Next, the arm cylinder 65 is extended, the lift arm 54 is tilted rearward, the body 55 is slid rearward, and the front end of the body 55 is lowered. At this time, the roller 69 at the rear end of the body 55 touches the ground to smoothly retreat the body 55 from the ground. When the body 55 is lowered to its lowest position, the state is as shown in FIG. 15. In this state, the body 55 is lowered almost horizontally onto the ground. Then, a car is loaded onto the body 55. In this way, since the vehicle is loaded onto the body 55 which is in a horizontal state, the driver can load the vehicle into the first position without feeling equally anxious.
As shown in FIG. 6, the vehicle can be advanced as far as the front end of the body 55, and the vehicle can be easily mounted on the body. Furthermore, when the driver gets out of the car, the body 55 is horizontal on the ground, so the driver can get out of the car without any danger. Furthermore, when a car or other cargo is loaded onto this horizontal body and secured, the tenon 55 is in a horizontal state, making it easy to secure the cargo, and there is also the risk of the cargo coming loose. Nor. Furthermore, since the cargo is loaded onto the body in a horizontal state, the cargo can be easily loaded onto the body 55 not only from the rear but also from the side. Next, the arm cylinder 65 is contracted and the lift arm 54 is
is tilted forward, the body 55 is first raised, and further slid in the plane along the lift frame 53. After the body 55 is sufficiently advanced onto the lift frame 53 as shown in FIG. 14, the slide cylinder 60 is extended and the lift frame 55 is
3 forward, and lift the Rifton Linda 6I.
is contracted to return the lift frame 53 to the horizontal state, resulting in the state shown in FIG. In the embodiment described above, the slide frame driving means is configured with the slide cylinder 60, but the slide frame driving means is not limited to this, and may be configured with a hydraulic motor, a chain, or the like. Furthermore, in the above embodiment, the lift frame driving means and the lift arm driving means were constructed with hydraulic cylinders.
The lift frame driving means and the lift arm driving means are not limited to these, and may be of any type as long as they can tilt the lift frame and the lift arm. Further, although the slide frame 56 is slidable on the guide rail 52 which is a sub-frame, if there is no sub-frame, a guide rule may be provided on the Nyano frame.

【Effect of the invention】

As is clear from the above, the freight vehicle of the first invention is
A lift frame, which is fixed to the chassis frame and has a front guided part guided by γG on a first guide rail whose rear part is higher than the front part, is slid rearward by the lift frame driving means, and the front part of the lift arm is slid backward by the lift frame driving means. Lift the guided part by the first guide rail,
By tilting the lift frame and tilting the lift arm which is pivotally supported by the lift frame and which pivotally supports the front side of the body, the body is slid onto the lift frame and lowered from the chassis frame. Since the body was lowered horizontally to the ground, cargo could be loaded onto the horizontal body. Therefore, according to this invention, it is possible to easily load cargo onto the body of a vehicle, and in the case of a vehicle, the vehicle can be loaded onto the horizontal tenon, so the driver can easily load the luggage without feeling any anxiety. A vehicle can be mounted on the body, and the vehicle can be moved forward to the very front end of the body. Also, when the driver gets off the vehicle onto the body,
Since the body is placed horizontally on the ground, there is no danger involved. Further, since it is sufficient to secure the cargo to the body in a horizontal state, the securing can be easily performed. Also,
Since the body can be placed horizontally on the ground, cargo can be easily loaded from the side. Further, in the freight vehicle of the second invention, the slide frame that is slidably mounted on the chassis frame is slid rearward by the slide frame drive means, and the lift frame drive means attached to the slide frame is caused to slide the slide frame slidably mounted on the chassis frame. The lift frame with the rear part pivoted is tilted, and the lift frame is pivoted.
By tilting the lift arm that pivotally supports the front side of the body using the lift arm driving means, the body is slid onto the lift frame, lowered from the palm frame, and lowered horizontally to the ground. Luggage can be loaded onto the horizontal body. Therefore, according to this invention, it is possible to easily load cargo onto the body of a vehicle, and in the case of a vehicle, the vehicle can be loaded onto the horizontal tenon, so the driver can easily load the luggage without feeling any anxiety. The vehicle can be placed on top of the body, and the vehicle can be advanced as far as the front end of the body. Further, when the driver gets off the vehicle onto the tenon, there is no danger because the body is placed horizontally on the ground. Further, since it is sufficient to secure the cargo to the body in a horizontal state, the securing can be easily performed. Additionally, since the tenon can be placed horizontally on the ground, cargo can be easily loaded from the side.

[Brief explanation of drawings]

Figures 1 to 9 are explanatory diagrams of the operation of the truck of the first invention, Figures 10 and 11 are perspective views of the upper body of the truck, and Figures 12 to 16 are illustrations of the operation of the truck of the second invention. figure,
FIG. 17 is a perspective view of the upper part of the vehicle body of the truck. 1.51... Sharn frame, 2.52... Sub frame, 3.53... Lift frame, 4.54... Lift arm, 5, 55... Body 6
...First guide rail, 7.29, 57.69...Roller, 10 II...Roller, 12.61...Lift cylinder, 2021...Sprocket, 28...Hydraulic motor, 60...・・Slide cylinder,
65...Arm cylinder.

Claims (2)

[Claims] (1) a first guide rail fixed to the chassis frame, the rear part of which is higher than the front part; a horizontal second guide rail fixed to the chassis frame; and a second guide rail mounted on the chassis frame, the second guide rail being fixed to the chassis frame; It has a rear guided part that is guided by the rail in the front and back direction, and a front guided part that is guided along the first guide rail, so that when sliding rearward, the front guided part is guided by the first guide. a lift frame that is lifted by a rail and tilts rearward; a lift frame driving means that slides the lift frame with respect to a guide rail; a lift arm that is pivotally supported by the lift frame and is tiltable with respect to the lift frame; , a lift arm driving means for tilting the lift arm with respect to the lift frame; a lift arm driving means mounted on the chassis frame and pivotally supported on the front side by the lift arm; A freight vehicle characterized by having a body that is lowered to the ground in a substantially horizontal manner by tilting rearward. (2) a slide frame that is slidable in the front and rear directions relative to the guide rails mounted on the chassis frame; a slide frame driving means that slides the slide frame in the back and forth direction relative to the guide rails; a lift frame that is pivotally supported and tiltable with respect to the slide frame; a lift frame driving means that is attached to the slide frame and tilts the lift frame with respect to the slide frame; , a lift arm that is tiltable with respect to the lift frame; a lift arm driving means that tilts the lift arm with respect to the lift frame; and a lift arm that is mounted on the chassis frame and whose front side is pivotally supported by the lift arm; Cargo comprising a body that is lowered to the ground substantially horizontally by sliding the slide frame rearward, tilting the lift frame rearward, and tilting the lift arm rearward. car.