JPH07110593B2 - Lorry - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a freight vehicle capable of loading a body by lowering a body in a horizontal state on the ground.

<Prior art> Conventionally, as a freight vehicle, a body is slid along a guide rail from a subframe in an oblique direction, and the body is slanted between the ground and the subframe to load the body. There is one that I tried to do (Act No. 61-43623).

<Problems to be Solved by the Invention> However, the above conventional freight vehicle has the following drawbacks.

Since the body is tilted with respect to the ground and luggage is loaded on the tilted body, the following problems occur.

(A) Since the luggage is placed on the body in a tilted state, it is difficult to carry the luggage.

(B) When the vehicle is loaded on the body, the vehicle rises to the front, which makes it easy for the driver to feel uneasy.
It is impossible to drive the vehicle to the end of the body.

(C) When the driver gets off from the vehicle loaded on the body, it is dangerous because the driver has to get on a narrow body that is obliquely upward with respect to the ground.

(D) When the luggage is fastened to the body, it is difficult to fasten the luggage to the body because the body is diagonally above the ground.

(E) Since the body is tilted obliquely with respect to the ground, it is difficult to load luggage from the side of the body. Also, in the case of vehicles, they cannot be loaded sideways into the body.

Since the body is diagonally passed between the ground and the subframe, a support member is necessary to prevent the vehicle body from rolling backward when loading a load on the body.

Therefore, the present invention has been made to solve the above-mentioned problems, and provides a freight vehicle capable of loading a cargo by horizontally lowering the body on the ground and not requiring a special supporting member. To do.

<Means for Solving the Problems> The invention according to claim 1 is a lift frame mounted on a vehicle body so as to be tiltable and slidable, and having a bent portion bent downward at a rear end side, and the lift frame. A lift frame driving means for tilting and sliding with respect to the above, and slidably mounted on the lift frame,
It is characterized by including a body that is slid up and down along the bent portion and is substantially horizontal when it is lowered to the ground, and a body drive means that slides the body with respect to a lift frame. .

The invention according to claim 2 is characterized in that, in addition to the configuration according to claim 1, the bent portion of the lift frame is configured to be grounded at least when a body is loaded on the lift frame. There is.

<Operation> The lift frame driving means slides the lift frame relative to the vehicle body and tilts the rear frame so that the rear part descends. Then, the bent portion of the lift frame comes into contact with the ground or is located very close to the ground. Thereafter, the body driving means slides the body rearward along the lift frame, further slides the front end of the body along the bent portion on the rear side of the lift frame and lowers the body substantially horizontally on the ground. . After that, luggage is loaded on the body that has been laid horizontally on the ground and secured. At this time, it is desirable that the lower end of the bent portion of the lift frame is grounded. Then, drive the body drive means,
The body is raised along the bent portion of the lift frame, and further the body is slid forward along the lift frame. Then, the lift frame is returned to the horizontal state by the lift frame driving means.

As described above, when the body is loaded on the lift frame, a load is applied to the rear side of the vehicle body, but when the lower end of the bent portion of the lift frame contacts the ground, the bent portion serves as a supporting member. The rearward rolling of the vehicle body is prevented.

<Examples> The present invention will be described in detail below with reference to the illustrated examples.

In FIGS. 1 and 2, 1 is a chassis frame, 2 is a subframe, 3 is a lift frame, and 5 is a body. The chassis frame 1 and the subframe 2 form a vehicle body. The lift frame 3 has a bent portion 6 that is bent obliquely downward on the rear end side, and can be slid along a guide roller 7 provided at the rear end of the chassis frame 1. One end of the lift frame 8 is pivotally attached to the chassis frame 1 at the front end of the lift frame 3, and the other end of the lift arm 8 is pivotally attached to the front end. The other end of the lift cylinder 11 is pivotally attached, and the lift cylinder 3 is slid backward along the roller 7 by the operation of the lift cylinder, and the rear end can be tilted so as to descend. The lower end of the bent portion 6 at the rear end of the lift frame 3 is almost in contact with the ground when the lift frame 6 is slid downward as much as possible and tilted as shown in FIGS. There is. The lift arm 8 and the lift cylinder 11 constitute lift frame drive means.

On the other hand, a guide roller 12 is provided at a boundary between the bent portion 6 and the horizontal portion of the lift frame 3, and the body 5 is guided by the roller 12 so that the body 5 can slide on the lift frame 3. . The body 5 is made to slide by the structure shown in FIG. That is, sprockets 17 and 18 are provided at the rear and front ends of the lift frame 3, and the chain 1 is attached to the sprockets 17 and 18.
I am crossing over 9. This chain 19 has a bracket 21
Is provided to connect the bracket 21 to the body 5. Chain guides 22, 22 ... Are provided on the convex side of the portion connected to the bent portion 6 of the lift frame 3, and chain guides 23, 23 are also provided on the concave side of the bent portion to guide the chain 19. There is. Further, a tensioner 25 is provided on the lower side of the center of the lift frame 3 so that the chain 19
I try to give tension to. The sprocket 18 is driven by a hydraulic motor 26. Therefore, by moving the bracket 21 forward and backward through the chain 19 by driving the hydraulic motor 26, the body 5 can be slid over the entire lift frame 3 including the bent portion 6. The sprocket wheels 17, 18, the chain 19, the bracket 21, and the hydraulic motor 26 constitute a body drive means.

The positions of the bracket 21 and the hydraulic motor 26 will be described with reference to FIGS. The sprocket 18 at the front end of the lift frame 3 is fixed to a shaft 32 rotatably attached to a bracket 31 fixed to the lift frame 3. The output shaft of the hydraulic motor 26 attached to the lift frame 3 is connected to one end of the shaft 32 via a coupling 46. The chain that is hung on the above sprockets 18 and 17
The chain bracket 21 fixed to 19 is the main girder of the body 5.
It is swingably attached to a shaft 56 fixed to 55. This axis
Guide rollers 35 and 36 are attached to a bracket 57 that is swingably attached to 56 so as to be positioned on both sides of the chain bracket 21, and the rollers 35 and 36 are arranged along the upper end surface of the lift frame 3 including channels. Roll it,
The body 5 is slid along the lift frame 3. Further, a guide plate 61 having an L-shaped cross section is provided on the shaft 56 so as to be located between the rollers 36 and 37 attached to the body 5 via the shaft 56 and the bracket 57 and the main girder 55 of the body 5. Is provided, and the pad 62 is attached to the upper side of the horizontal portion of the guide plate 61. Then, while sliding the pad 62 on the lower surface of the upper end portion of the channel of the lift frame 3, the body 5 is vertically locked to the lift frame 3 by the guide plate 61 via the pad 62, and the front end of the body 5 is Lift frame 3
On the other hand, in particular, the bent portion 6 is prevented from rising and being separated. Thus, the roller 3
When the front end of the body 5 moves along the bent portion 6 of the lift frame 3, the rollers 35 and 36 move along the bent portion 6 due to the swinging of the brackets 21 and 57, so that the body 5 and 36 move.
The guide plate 61 prevents the lift-off from the lift frame 3.

As shown in FIGS. 1 and 2, a roller 29 and a telgate 31 which also serves as a walk plate are provided at the rear end of the body 5. Further, a vertical plate 40 is provided at the front end of the body 5.

The freight vehicle having the above-described configuration loads luggage, for example, a vehicle as follows.

First, assuming that this freight vehicle is in the state shown in FIG. 1, the lift cylinder 11 is extended, and the lift frame 3 is slid rearward on the roller 7 via the lift arm 8 and tilted rearward. , As shown in FIG.

Next, the hydraulic motor 26 is driven to transfer the chain 19 along the chain guides 22 and 23 and the tensioners 25 and 25 via the sprocket 18, and the bracket 5 and the body 5 along the lift frame 3. Slide backwards and lower front end of body 5 along bend 6. At this time, the roller 29 at the rear end of the body 5 comes into contact with the ground to smoothly retract the body 5 with respect to the ground. At this time, the telgate 31 is standing up.

Thus, in the process of sliding the body 5 backward, the rollers 35 and 36 support the front end of the body 5 on the lift frame 3, and the rear end and center of the body 5 are provided on the rear side of the lift frame 3. The roller 12 supports. Then, the front end of the body 5 is prevented from being detached from the lift frame 3, particularly the bent portion 6 by sandwiching the horizontal portion of the lift frame 3 via the pad 62 by the rollers 35 and 36 and the plate 62. It

When the body 5 is lowered most along the bent portion 6 of the lift frame 3, the state shown in FIG. 3 is obtained. In this state, the body 5 is lowered almost horizontally on the ground.
Then, tilt the telgate 31 horizontally and load the car on the body 5.

In this way, since the vehicle is loaded on the body 5 in the horizontal state, the driver can move the vehicle forward to the end of the body 5 as shown in FIG. 4, without feeling any anxiety. You can easily put a car on the body. Also, when the driver gets out of the car,
Since the body 5 is horizontal on the ground, the driver can get out of the car without any danger. Further, when a car or other luggage is loaded and fastened in this horizontal body, the body 5 is in a horizontal state, so that the luggage can be easily fastened and the luggage may be scattered. Absent. Further, since the luggage is loaded on the body in the horizontal state as described above, the luggage can be easily loaded on the body 5 not only from the rear but also from the side.

Next, the hydraulic motor 26 is driven to raise the body through the sprocket 18, 17 and the chain 19 along the bent portion 6, and further slides forward along the lift frame 3. At this time, the lower end of the bent portion 6 of the lift frame 3 is grounded by the weight of the vehicle as shown in FIG. 4, and the bent portion 6 of the lift frame 3 serves as a supporting member to prevent the vehicle body from rolling backward. .

After the body 5 is sufficiently advanced on the lift frame 3 as shown in FIG. 2, the hydraulic cylinder 11 is contracted to return the lift frame 3 to the horizontal state via the lift arm 8 and the sub frame 2 On the other hand, it is slid forward to the state shown in FIG. In this state, since the bent portion 6 of the lift frame 3 is lifted from the ground, there is no risk of colliding with an obstacle on the ground while traveling.

In the above embodiment, the body drive means is constituted by the hydraulic motor 26, the chain 19, the sprockets 17, 18, etc., but the body drive means is not limited to this, and may be constituted by ropes, pulleys or the like. Further, although the lift frame driving means is composed of the hydraulic cylinder 11 and the lift arm 8 in the above-mentioned embodiment, the lift frame driving means is not limited to this, and any means can be used as long as the lift frame can be tilted and slid. May be Further, although the lift frame 3 is slidable on the subframe 2, it may be slidable on the chassis frame when there is no subframe. Further, although the hydraulic motor is attached to the lift frame, it may be attached to the body.

<Effects of the Invention> As is clear from the above, the freight vehicle of the present invention is mounted on the vehicle body so as to be tiltable and slidable, and the lift frame driving means includes a lift frame having a bent portion that is bent downward at the rear end. Slide it backwards,
Since the body is tilted, the body is slid on the lift frame by the body driving means, and the body is lowered along the bent portion so that the body is horizontally lowered to the ground, it is possible to load the luggage on the horizontal body. . Therefore, according to the present invention, luggage can be easily placed on the body, and in the case of a vehicle, the vehicle only needs to be placed on the body in the horizontal state, so that the driver can easily put the body on the body without feeling any anxiety. The vehicle can be placed on the top of the body, and the vehicle can be advanced to the front end of the body. Further, when the driver gets off the vehicle from the vehicle, since the body is placed horizontally on the ground, there is no danger. Further, since it is sufficient to fasten the luggage to the body in the horizontal state, the fastening can be easily performed. Also, since the body can be placed horizontally on the ground, luggage can be easily loaded from the side.

Further, when the bent portion of the lift frame is designed to be grounded when loading luggage on the body, this bent portion can also serve as a supporting member, and the rearward rotation of the vehicle body can be easily performed. It can be prevented by the structure.

[Brief description of drawings]

1, 2, 3, and 4 are operation explanatory views of the freight vehicle of the present invention, FIG. 5 is an enlarged explanatory view of the lift frame, FIG. 6 is an enlarged sectional view of the hydraulic motor and the sprocket, and FIG. It is a side view of a portion where a sprocket and a hydraulic motor exist. 1 ... Chassis frame, 2 ... Subframe, 3 ...
Lift frame, 5 ... body, 8 ... lift arm,
11 …… Lift cylinder, 7,12,29,35,36 …… Roller, 17,
18 …… sprocket, 19 …… chain, 26 …… hydraulic motor, 21,57 …… bracket.

Claims (2)

[Claims] 1. A lift frame mounted on a vehicle body so as to be tiltable and slidable and having a bent portion bent downward at a rear end side, and lift frame driving means for tilting and sliding the lift frame with respect to the vehicle body. A body slidably mounted on the lift frame, slid up and down along the bent portion, and a body that is substantially horizontal when lowered to the ground, and a body drive that slides the body with respect to the lift frame. A lorry characterized by having means. 2. A lift frame mounted on the vehicle body so as to be tiltable and slidable, and having a bent portion bent downward at a rear end side, and lift frame driving means for tilting and sliding the lift frame with respect to the vehicle body. A body slidably mounted on the lift frame, slid up and down along the bent portion, and a body that is substantially horizontal when lowered to the ground, and a body drive that slides the body with respect to the lift frame. And a bent portion of the lift frame is configured to be grounded at least when a body is loaded on the lift frame.