JPH02258483A - Working vehicle - Google Patents

Abstract

PURPOSE:To change the width measure of a truck so as to pass in a small narrow space by supporting a pair of bilateral wheels at the tips of a pair of frames rotatably connected in the state of intersecting in the X form on the plane view through wheel holders, thus forming the truck. CONSTITUTION:In a working vehicle, a truck is provided with a lift mechanism 2 for lifting, for instance, an ALC (lightweight cellular concrete panel) as an article displacing mechanism, a hydraulic unit 3, a driving seat 4, an operation control part 5, and the like, and a pair of frames 6, 7 are rotatably connected by a pivot 8 in such a way as to intersect in the X form on the plane view, thus forming the truck 1. The opening angles of the frames 6, 7 are adjustable by a turnbuckle 9 stretchably adjustable in its length. A wheel holder 10 is provided in the horizontally rotatable state at the lower part of each tip part of the frames 6, 7 through a pivot 10a, and a pair of bilateral wheels 13, 13 can be rotated by hydraulic motors built in the respective holders 10.

Description

DETAILED DESCRIPTION OF THE INVENTION [Objective of the Invention] (Industrial Application Field) The present invention relates to a working vehicle equipped with an article displacement mechanism for lifting or transporting articles on a truck.

(Prior art) For example, when constructing a building, lightweight aerated concrete panels (hereinafter referred to as ALC) are assembled to the steel frame of the building, but recently it has been considered that such work can be done using work vehicles. . This work vehicle is constructed by mounting on a truck a concrete panel handling mechanism that grasps the ALC article and lifts or transfers it to the steel frame part of the building.

(Problem to be Solved by the Invention) However, in a workplace such as a construction site, there is a problem in which the work vehicle cannot be moved to the desired location when the space for the work vehicle to pass or the space for the work vehicle to change direction is narrow. is expected.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to provide a solution even when the space for a working vehicle to pass or the space for a working vehicle to change direction is somewhat narrow.
To provide a work vehicle that can be moved to a desired location.

[Structure of the Invention] (Means for Accomplishing the Problem) The present invention provides an article displacement mechanism for lifting or transporting an article on a truck, and the truck is arranged in an X-shape on a plane. A pair of frames are rotatably connected via axes so as to intersect, an adjustment=f and step for adjusting the opening angle of the pair of frames, and a water 1' at each tip of the pair of frames. , a wheel holder provided with the ability to rotate in the direction , a wheel disposed opposite to the wheel holder so as to sandwich its center of rotation, and a drive for selectively driving the wheel in the direction 11 and the opposite direction. The main feature lies in the fact that the means and means are constructed in such a way that there are 4 parts.

(Function) By adjusting the opening angle of the pair of frames forming the main part of the truck using the adjusting means, the overall width dimension of the truck can be changed. Therefore, the carriage can pass even if the space for the carriage to pass through is narrow.

Further, when the wheels of each wheel holder are driven to rotate in opposite directions by the driving means, the holder rotates and the direction of the small wheel itself changes.

Therefore, when changing the moving direction of the truck, the moving direction can be changed without turning the truck, and as a result, there is no problem even if the space for changing direction is somewhat narrow.

(Embodiment) Hereinafter, one embodiment of the present invention will be described with reference to FIGS. 1 to 6.

First, in FIGS. 4 and 5, 1 is a trolley,
The trolley 1 is equipped with a lift mechanism 2 for lifting an article displacement mechanism such as an ALC, and a hydraulic unit 3. A driver's seat 4° operation control unit 5 and the like are provided.

The trolley 1 will be described. Reference numerals 6 and 7 denote frames of 1λ·1 that constitute the main parts of the truck 1, and these are rotatably connected via a shaft 8 so as to intersect the X-shape in the plane, as shown in FIG. has been done. In this case, the frame 7 has a concave shape at the intersection with the frame 6. 9 is a turnbuckle serving as S) one section means for adjusting the opening angle of the frame 6.7;
11 is composed of a left-handed threaded stud 9b, and a rotating rod 9C having a right-handed threaded portion and a left-handed threaded portion formed on the inner surfaces of both ends, respectively. The turnbuckle 9 is expanded and contracted by moving the rotary rod 9C to the right or to the left, thereby adjusting the opening angle of the frame 6.7. Further, at the bottom of each tip of each frame 6.7, a wheel holder 10 is connected to a water holder 10 via a shaft 10a. 'Ji direction (arrow Ah direction and the opposite direction). As shown in FIGS. 2 and 3, the three-wheel holder 10 has wheel axles 11. , 11 are respectively disposed via bearings 12° 12, and one end of the three axles 11 is made of solid rubber tires! 1 (wheel 13.1
3 are arranged in a claw tube so that they rotate together. 1 of this pair
The eleventh wheels 13.13 are arranged opposite to each other so as to sandwich the center of rotation of the middle ring holder TO, that is, the axis J of the shaft 10H. Further, an internal gear 14 having a relatively large diameter is integrally formed with the small wheel shaft 11.

Reference numerals 1, 5, and 15 denote hydraulic motors as driving means, which are arranged in parallel to the wheel holder 10, but their output shafts are oriented in the opposite) direction (towards the internal gear 14). A drive gear 16 that meshes with the internal gear 14 is attached to each output shaft. The hydraulic motors 15 are adapted to be selectively rotated in the iE force direction and in the reverse direction, respectively, so that the respective wheels 1' and 13 can be selectively driven in the forward and reverse directions. It looks like this. Therefore, both the side wheels 13 and 13 are connected to arrow G-1 in Fig. 3.
If the cart is rotated in three directions, the truck will move in the direction of arrow g, and if one wheel 13 is rotated in the direction of arrow H in FIG. 3 and the other wheel 13 is rotated in the direction of arrow G, each Each of the wheel holders 10 rotates about its support 10a in the direction of the arrow in FIG. 1, for example, and the direction of the middle wheel 13 changes.

Then, if the rotation is stopped at a certain rotation angle (! (see Figure 6) and both width wheels 13 are rotated in the same direction, the platform!1 (
1 moves in the direction that its Φ wheel 13 faces. Therefore, the truck 1 can change direction at right angles or diagonally without changing its direction.

Next, the lift mechanism 2 will be described. Figure 1.

In Figures 4 and 5, 17 is the main boss! ·in,
This is provided at the center of the frame 6 so that it can rotate in the horizontal direction. At the bottom of this main post 17 is a post rotation motor 18 consisting of a hydraulic motor (see Figure 5).
is provided, and one gear is mounted on the output shaft facing the direction. Around the lower end of the main boss 17 is a gear 20 with a relatively large diameter that meshes with one of the gears.
The main post 17 is provided within one body, and when the motor 18 rotates, the main post 17 rotates. In this case, the driver's seat 4 and the operation control section 5 also rotate together with the main boss 17. Therefore, the orientation of the driver's seat 4 and the operation control section 5 is the same as that of the lift mechanism 2. Further, a lowering post 21 is provided inside the main post 17, and a first arm 22, a second arm 23, and a lower arm 23 are provided at the upper end of the lifting post 21. third arm 24
The third arm 24 is provided with a chucking mechanism 25 for gripping and holding the ALC. However, the lift mechanism 2 includes a lifting post cylinder (not shown) and each arm rotation cylinder 26.2.
7.28, etc., and lifts and transfers the ALC to the required site based on the operation of each cylinder.

According to this embodiment with the above configuration, the opening angle of the pair of frames 6, 7 constituting the main part of the truck is adjusted by the turnbuckle 9, which is the adjustment means.
The overall width of the truck can be changed. Therefore, even if the space for the carriage 1 to pass through is somewhat narrow, the carriage 1 can pass through. Further, when the wheels 13 of each wheel holder 10 are rotated in opposite directions by the hydraulic motor 15 serving as a driving means, each holder 10 rotates and the direction of the wheel 13 itself is changed. Therefore, when changing the moving direction of the platform 1, the moving direction can be changed without turning the platform 1, and as a result, there is no problem even if the space for changing the direction is somewhat narrow. Overall, the work tunnel of this embodiment is extremely convenient when used in a narrow space such as a construction work site.

Note that FIGS. 7 and 8 show other embodiments of the present invention, and in the same figures, the width transport holders 10 are connected to each other by a link mechanism so that the orientation of each wheel holder 10 is always the same. 29 to connect them. In addition,
30.31 is a stopper that sets the rotation limit position I7.

The orientation of the wheel holder 1.3 is different between FIGS. 7 and 8. If this (IX1 configuration) is used, it will be easier to control the direction of the wheels.

Further, in the above embodiment, an ALC lift mechanism is exemplified as the article displacement mechanism, but the present invention is not limited to this. Furthermore 1. The festival machine 1111 is not limited to a turnbuckle, but may be configured to use a cylinder.

In addition, the present invention is not limited to the above embodiments, and can be implemented with various modifications without departing from the scope of the invention.

[Effects of the Invention] As is clear from the above description, the present invention allows the overall width of the bogie to be easily changed, and therefore, even if the space through which the bogie passes is somewhat narrow, the passing capacity of the bogie can be improved. 1 ■ Noh, and each 111. The direction of the middle wheel of the wheel holder itself can be easily changed, so the direction of movement can be changed without turning the cart, and as a result, even if the space for changing direction is somewhat narrow, there is no problem in 111■. Overall, it provides a work rlj that is extremely convenient when used in narrow spaces such as construction sites and crime sites.

[Brief explanation of drawings]

Figures 1 to 6 show one embodiment of the present invention. Figure 1 is a cross-sectional view of the bogie portion, Figure 2 is a longitudinal sectional front view of the middle wheel portion, and Figure 3 is a front view of the same portion. Figure 4 is a side view of the whole, Figure 5 is a 1L blood diagram of the trolley portion, Figure 6 is a diagram of Figure 1 showing the different orientations of the wheels. Figures 7 and 8 are Another embodiment of the present invention is shown, and a seventh embodiment of the present invention is shown.
The figure is a plan view of only the link mechanism part, and FIG. 8 is a view of FIG. 7, which shows a different orientation of the wheels. In the figure, 1 is a trolley, 2 is a lift machine 1: (article displacement machine + M), 6.7 is a frame, 9 is a turnbuckle (adjustment means), 10 is a wheel holder, ] 3 is a wheel, and 14 is an inner 15 is a hydraulic motor (driving means) and 16 is a driving gear. Figure Figure Figure Figure Figure Figure] 3 Figure

Claims (1)

[Claims] 1. A truck is equipped with an article displacement mechanism for lifting or transporting the article, and the truck is connected to a pair of shafts rotatably connected to each other via an axis so as to intersect with an X-shaped plane. a frame, an adjusting means for adjusting the opening angle of the pair of frames, a wheel holder rotatably provided in a horizontal direction at each end of the pair of frames, and a wheel holder that faces the wheel holder so as to sandwich the center of rotation of the wheel holder. 1. A work vehicle characterized by having wheels arranged therein and a drive means for selectively driving the wheels in a forward direction and a reverse direction.