JP2020029214A - Widening mechanism and vehicle provided with the same - Google Patents

Abstract

To provide a widening mechanism which can form a wide space in a container which is loaded on a frame of a vehicle such as a truck and a trailer, in a short time and with good efficiency, and to provide a vehicle which has the widening mechanism, has a lightweight structure and is low in a manufacturing cost.SOLUTION: In a vehicle having a widening mechanism, a tip side of a piston rod 17a in a cylinder 16a for closing a floor is turnably connected to an underside of a floor plate 12a via a bracket 13b, and a base end side thereof is turnably connected to a bracket base 18 fixedly provided to a frame 1a via a bracket 13c. A base end side of a cylinder 16b for opening a floor is turnably connected to an end of a bracket 13a on a side near a hinge 11b, and a tip side of a piston rod in the cylinder 16b for opening a floor is turnably connected to a relay link 15 between an intermediate part thereof in a longer direction and an end thereof connected to the bracket 13a.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a vehicle such as a truck or a trailer in which a container is mounted on a frame, and in particular, enlarges the internal space of the container by projecting a widening chamber stored in the container in the vehicle width direction. The present invention relates to a vehicle including a mechanism (hereinafter, referred to as a widening mechanism).

Islam has the habit of worshiping at a fixed time every day, but it is not easy for worshipers to come to Japan for international events such as expositions and sports competitions. In order to solve such a problem, for example, a truck named "Mobile Mosque" is used in Jakarta, Indonesia. This truck has a structure that allows worship in a container mounted on a loading platform, and a business trip to a place where various events are held so that believers care about the surrounding eyes In recent years, it has attracted attention for providing a space where people can concentrate on worship.
However, since the size of the container mounted on the truck bed is limited due to safety issues, the conventional vehicle has a problem that the number of people who can accommodate the container is small.

Although it is not intended to be used for the worship described above, the applicant of the present application has already disclose the side wall portion of the truck body to the outside as disclosed in Patent Document 1 under the name of “body with widening mechanism”. An invention relating to a mechanism for extending a vehicle width by projecting and extending is performed.
The widening mechanism disclosed in Patent Literature 1 includes a pair of left and right floor plates that are adjacent to each other in a vehicle width direction and are connected via a hinge to form a two-folded floor that can expand and contract in the vehicle width direction. An electric motor mounted on a slider that can reciprocate, a rack fixed to one end of a floor partially formed by a pair of floor plates so as to be parallel to the slider, and an electric motor screwed with the rack. And a toggle mechanism for raising and lowering the folding floor with the reciprocating movement of the slider.

In the widening mechanism having the above structure, when the electric motor is driven to rotate forward, the rack screwed with the pinion moves in the direction in which the folding floor extends, and at the same time, the slider moves in the opposite direction. As a result, one floor plate of the folding floor is pulled downward. As a result, the folded floor in the contracted state is urged in the extension direction, and the side wall portion projects and extends outward of the vehicle body.
In this state, when the electric motor is driven in the reverse direction, the rack moves in the contracting direction of the folding floor, and at the same time, the slider moves in the opposite direction, and one floor plate of the folding floor is pushed upward by the toggle mechanism. Can be
As a result, the folded floor which has been in the flat extended state is mountain-folded at the connecting portion of the pair of floor plates and becomes contractible, the side wall portion is retracted inward of the vehicle body, and the width of the vehicle body is restored.
As described above, according to the above-described widening mechanism, the width of the vehicle body is expanded by projecting and extending the side wall portion of the vehicle body outward without forming a gap between the side wall portion and the floor of the vehicle body. The width of the vehicle body can be returned by retracting the protruding and extended side wall portion.

Also, Patent Document 2 discloses an invention relating to a structure entitled "body widening structure in widened vehicle" in which a widened portion is housed in a side portion of a vehicle body in a folded state.
The invention disclosed in Patent Document 2 has a structure in which at least one side surface of the vehicle body has a foldable wide portion corresponding to substantially the entire length of the luggage compartment, and the wide portion is formed of the vehicle body. The front widening portion and the rear widening portion are respectively located on the front side and the rear side, and the central widening portion is located between the front widening portion and the rear widening portion.
In the retracted state, the front widening portion and the rear widening portion are foldably connected via hinges extending in a vertical direction, and are arranged along the front surface and the rear surface in a standing posture, respectively. A pair of central widening plates, each of which includes a central widening portion, which is foldably connected via a hinge extending in a horizontal direction in a retracted state, and which is disposed along one side surface of the vehicle body body in a standing position. It is characterized by consisting of.
According to such a structure, it is possible to load and unload luggage from the door on the rear surface of the vehicle body regardless of the expanded state or the stored state of the widening portion. Further, the widened portion can be expanded and stored without unloading the luggage.

Further, Patent Literature 3 discloses a device related to a trailer house capable of expanding the floor area to about two to three times that of a towed vehicle under the name of “trailer house capable of expanding the floor area”.
The invention disclosed in Patent Literature 3 is characterized in that a pair of left and right side walls whose lower ends are swingably connected to the vehicle body, and bellows-like membrane materials whose both ends are respectively connected to the side walls and the vehicle body are provided. And
According to such a structure, the floor area is expanded to about two to three times as much as the traction when the side wall is tilted outward to make it horizontal, and the side and top of the vehicle body are covered with the expanded membrane material. Therefore, it is possible to create a large living space with excellent airtightness and watertightness.

Japanese Patent No. 3437516 Japanese Patent No. 6109256 Registered Utility Model No. 3193633

  The invention disclosed in Patent Literature 1 includes an electric motor, a slider, and a rack, and has a complicated structure of the widening mechanism. Therefore, it may be difficult to reduce the weight and the manufacturing cost.

  In the invention disclosed in Patent Document 2, since the structure of the widened portion is complicated, it is difficult to reduce the weight, and the manufacturing cost may be increased. Further, it is presumed that it takes time to expand and store the widened portion.

  The device disclosed in Patent Literature 3 does not include a mechanism for automatically tilting or returning the side wall to its original state, and thus it is difficult to deploy and store the side wall in a short time. In addition, when the side wall is unfolded, the ceiling portion is curved and has a structure that gradually lowers outward in the vehicle width direction, so that there is a problem that a wide space cannot be formed inside the container. Was.

  The present invention has been made in view of such a conventional situation, and efficiently and quickly forms a wide space inside a container mounted on a frame of a vehicle such as a truck or a trailer. It is an object of the present invention to provide a widening mechanism capable of performing the above-described operation, a vehicle having the widening mechanism, a lightweight structure, and a low manufacturing cost.

  In order to achieve the above object, a first aspect of the present invention provides a vehicle in which a container having an opening provided on a side surface is mounted on a frame so that a widening chamber housed inside the container so as to be able to protrude and retract from the opening is provided. A widening mechanism that widens the interior space of the container by protruding in the direction of the container, the fixed floor being fixed horizontally at the center in the vehicle width direction with respect to the frame, and the vehicle width direction so as to be adjacent to the fixed floor. , A movable floor installed outside the vehicle width direction adjacent to the folded floor, and a movable floor installed between the frame and the widening room in the vehicle width direction. Supporting means for slidably supporting, a first hydraulic cylinder installed below the folding floor so that the first piston rod expands and contracts in a vertical plane parallel to the vehicle width direction, and the first hydraulic pressure Hydraulic pump for supplying and discharging hydraulic oil to and from the cylinder Wherein the folding floor comprises a first floor plate and a second floor plate which are installed adjacent to each other in the vehicle width direction and are connected to each other via a first hinge, and the widening chamber is a folding room. A floor and a movable floor, a side panel forming a part of the side surface of the container and having the movable floor connected to a lower end, a front panel extending from a front end and a rear end thereof so as to be orthogonal to the side panel, and The folding floor comprises a rear panel and a ceiling panel extending vertically from an upper end of the side panel. The folding floor has a first floor panel connected to a fixed floor via a second hinge and a second floor panel. Is connected to the movable floor via a third hinge, and the first hydraulic cylinder is rotatably connected to the frame via a first bracket on the base end side, and the first hydraulic cylinder is connected to the distal end side of the first piston rod. A second braquet on the underside of the first floorboard The first floor plate is pushed up when the first piston rod of the first hydraulic cylinder is extended, and the first floor plate is pushed up so that the folding floor is folded into a mountain shape. The floorboard and the second floorboard rotate.

In the widening mechanism having the above structure, when the first piston rod of the first hydraulic cylinder extends in a state where the widening chamber projects from the opening provided on the side surface of the container in the vehicle width direction, the first piston rod causes When the lower surface of the first floor panel is vertically pushed through the second bracket, a rotational moment is generated in the first floor panel. As a result, the first floor panel rotates about the rotation axis of the second hinge in a direction in which the angle with respect to the horizontal increases. At this time, the first hydraulic cylinder rotates in the same direction as the first floor plate around a base end side connected to the vehicle frame via the first bracket.
In addition, the second floor panel is configured such that the end to which the first hinge is attached is pushed up by the first floor panel, so that the rotation axis of the first hinge is reduced in a direction in which the angle formed with the first floor panel decreases. The third hinge pivots about the pivot axis of the third hinge in a direction in which the angle with respect to the horizontal increases.

At this time, the end of the second floor plate connected to the movable floor via the third hinge is similar to the movable floor slidably supported in the vehicle width direction by the support means. Since the movement is restricted, the end of the second floor plate moves horizontally in the vehicle width direction so as to approach the fixed floor together with the movable floor.
Then, the side panel connected to the lower end of the movable floor and the front panel, rear panel, and ceiling panel connected to the movable floor also move horizontally in the same direction as the movable floor until the widening room is housed inside the container. The folding floor is folded into a mountain shape.

On the other hand, when the first piston rod of the first hydraulic cylinder is shortened in a state where the folding floor is folded in a mountain shape, the lower surface of the first floor plate is moved by the first piston rod via the second bracket. The vertical pull generates a rotational moment on the first floorboard. As a result, the first floor plate rotates about the rotation axis of the second hinge in a direction in which the angle with respect to the horizontal becomes smaller. At this time, the first hydraulic cylinder rotates in the same direction as the first floor plate around a base end side connected to the vehicle frame via the first bracket.
In addition, the second floor plate is configured such that the end to which the first hinge is attached is pushed down by the first floor plate, so that the rotation axis of the first hinge is increased in a direction in which the angle formed with the first floor plate increases. While rotating about the center, it rotates about the rotation axis of the third hinge in a direction in which the angle with respect to the horizontal becomes smaller. At this time, since the end of the second floor plate connected to the movable floor via the third hinge is restricted from moving in a direction other than the vehicle width direction like the movable floor, the end of the second floor plate is moved together with the movable floor from the fixed floor. Move horizontally in the vehicle width direction to leave.
The side panel connected to the lower end of the movable floor and the front panel, rear panel, and ceiling panel connected to the movable floor also move horizontally in the same direction as the movable floor until the folded floor is flat. As a result, the widening chamber projects from the opening provided on the side surface of the container in the vehicle width direction.

  As described above, in the first aspect, the first hydraulic cylinder is driven to extend the first piston rod while the widening chamber projects from the opening provided on the side surface of the container in the vehicle width direction. By rotating the first floor plate and the second floor plate such that the folding floor is folded into a mountain shape, the widening chamber is housed inside the container, and the folding floor is mounted on the mountain. When the first piston rod is shortened by driving the first hydraulic cylinder in a state where it is folded into a mold, the first floor plate and the second floor plate are opened in a direction in which the folded floor folded into a mountain shape opens. Has an effect that the widening chamber is projected in the vehicle width direction from the opening provided on the side surface of the container by rotating the container.

When the widening chamber is stored inside the container, the folding floor is folded in a mountain shape, and the width direction of the first floor plate (the direction orthogonal to the longitudinal direction) and the first hydraulic cylinder of the first hydraulic cylinder Since the angle between the expansion and contraction directions of the piston rod is small, the force acting perpendicularly to the first floor plate from the first piston rod via the second bracket is small.
On the other hand, when the folding floor is almost flat, such as when the widening chamber projects almost completely in the vehicle width direction from the opening provided on the side surface of the container, the vehicle width of the first floor plate Since the angle between the direction and the direction of expansion and contraction of the first piston rod of the first hydraulic cylinder is large, the force acting vertically on the first floor plate from the first piston rod via the second bracket is large. .
Therefore, the first hydraulic cylinder functions most effectively when the operation of housing the widening chamber, which projects almost completely in the vehicle width direction from the opening provided on the side surface of the container, inside the container 2 is started. I do.

  Further, a second invention is based on the first invention, wherein the second hydraulic cylinder is installed below the folding floor so that the second piston rod expands and contracts in a vertical plane; A third bracket, which is installed on the lower surface of the floor plate, and a first member, which is formed of a rectangular tubular elongated member, is provided with a first slit in the lower surface in parallel with the longitudinal direction, and has a flat folding floor. A roller rail installed on the lower surface of the second floor plate so as to be arranged on the same straight line with respect to the third bracket in the state, and one end rotatably connected to the vicinity of the tip of the third bracket; A long relay link in which a first guide roller provided at the other end is slidably and rotatably held in a longitudinal direction by a roller rail, and the second hydraulic cylinder has a base end side. Third bracket The distal end side of the second piston rod is rotatably connected to the end near the second hinge, and the distal end side of the second piston rod is rotatably connected to the intermediate portion in the longitudinal direction of the relay link and the third bracket. The first floor plate and the first floor plate are connected in a direction in which the folded floor that is folded in a chevron opens when the second piston rod of the second hydraulic cylinder is extended. The second floor plate rotates.

In the widening mechanism having the above structure, when the second piston rod of the second hydraulic cylinder extends while the folding floor is folded in a mountain shape, the relay link is pressed vertically by the distal end side of the second piston rod. As a result, a rotational moment is generated in the relay link.
Further, when the roller rail is vertically pushed by the relay link via the first guide roller, a rotational moment is generated on the second floor plate. As a result, the relay link pivots around one end connected to the third bracket in a direction in which the angle formed by the third bracket increases, and the angle formed by the second floor plate with the first floor plate increases. The first hinge rotates in the direction about the rotation axis of the first hinge, and rotates about the rotation axis of the third hinge in the direction in which the angle with respect to the horizontal decreases.
Further, with the rotation of the second floor plate, the first floor plate rotates about the rotation axis of the second hinge in a direction in which the angle with respect to the horizontal becomes smaller, and the second hydraulic cylinder moves to the third hydraulic cylinder. About the proximal end connected to the bracket. Then, the first guide roller relatively moves inside the roller rail in a direction approaching the first hinge.
At this time, since the end of the second floor plate connected to the movable floor via the third hinge is restricted from moving in a direction other than the vehicle width direction like the movable floor, the end of the second floor plate is moved together with the movable floor from the fixed floor. Move horizontally in the vehicle width direction to leave.
The side panel connected to the lower end of the movable floor and the front panel, rear panel, and ceiling panel connected to the movable floor also move horizontally in the same direction as the movable floor until the folded floor is flat. As a result, the widening chamber projects from the opening provided on the side surface of the container in the vehicle width direction.

On the other hand, when the second piston rod of the second hydraulic cylinder is shortened in a state where the widening chamber projects from the opening provided on the side surface of the container in the vehicle width direction, the relay link is moved to the distal end side of the second piston rod. , A rotational moment is generated in the relay link.
In addition, when the roller rail is pulled vertically by the relay link via the first guide roller, a rotational moment is generated in the second floor plate. As a result, the relay link rotates around one end connected to the third bracket in a direction in which the angle formed by the third bracket becomes smaller, and the angle formed by the second floor plate with the first floor plate becomes smaller. The first hinge rotates in the direction about the rotation axis of the first hinge, and rotates about the rotation axis of the third hinge in the direction in which the angle with respect to the horizontal increases.
Further, with the rotation of the second floor plate, the first floor plate rotates around the rotation axis of the second hinge in a direction in which the angle with respect to the horizontal increases, and the second hydraulic cylinder moves to the third hydraulic cylinder. About the proximal end connected to the bracket. Then, the first guide roller relatively moves inside the roller rail in a direction away from the first hinge.
At this time, since the end of the second floor plate connected to the movable floor via the third hinge is restricted from moving in a direction other than the vehicle width direction similarly to the movable floor, the end of the second floor plate is connected to the fixed floor together with the movable floor. Move horizontally in the vehicle width direction to get closer.
Then, the side panel connected to the lower end of the movable floor and the front panel, the rear panel, and the ceiling panel connected to the movable floor also move horizontally in the same direction as the movable floor until the widening room is housed inside the container. .

  Thus, in the second invention, in addition to the operation of the first invention, the second hydraulic cylinder is driven to extend the second piston rod in a state where the folding floor is folded in a mountain shape. The first floor plate and the second floor plate rotate in the direction in which the folded floor opened in the mountain shape opens, so that the widening chamber projects in the vehicle width direction from the opening provided on the side surface of the container. It has the effect of being in a state of being in a state of being in a state. In the second invention, when the second hydraulic cylinder is driven to shorten the second piston rod in a state where the widening chamber projects from the opening provided on the side surface of the container in the vehicle width direction, the folding is performed. By rotating the first floor plate and the second floor plate so that the floor is folded into a mountain shape, the widening chamber is housed inside the container.

If the widening chamber projects almost completely in the vehicle width direction from the opening provided on the side surface of the container, the folding floor becomes almost flat, and the longitudinal direction of the relay link and the second hydraulic cylinder Since the expansion and contraction directions of the second piston rod are nearly parallel, the force acting perpendicularly to the relay link from the second piston rod is minimized. As a result, the force acting perpendicularly from the relay link via the roller rail to the second floor plate is also minimized.
On the other hand, when the widening chamber is housed inside the container, the folding floor is folded into a mountain shape, and the angle between the longitudinal direction of the relay link and the expansion and contraction direction of the second piston rod of the second hydraulic cylinder is formed. Increases, the force acting vertically from the second piston rod to the relay link increases. As a result, the force acting vertically on the second floor plate from the relay link via the roller rail also increases.
Therefore, the second hydraulic cylinder functions most effectively when the operation of projecting the widening chamber completely housed in the container in the vehicle width direction is started.

According to a third invention, in the second invention, two sets of a first hydraulic cylinder and a second hydraulic cylinder are provided, and each set of the first hydraulic cylinder and the second hydraulic cylinder is provided with a front end with respect to the folding floor. A servo motor that is installed near the rear end and drives the hydraulic pump, a control unit that sends a command signal for rotating the servo motor at a desired rotation speed in a desired direction, and a front end of the ceiling panel. A first distance sensor and a second distance sensor that are respectively installed on the upper surface of the rear end and detect a distance to a side panel of the container, wherein the control unit controls the first distance sensor and the second distance sensor The operation of the first hydraulic cylinder and the second hydraulic cylinder is controlled via the servomotor and the hydraulic pump based on the detection result of the above.
In the widening mechanism having such a structure, in addition to the operation of the second invention, an operation that the amount of movement of the widening chamber in the vehicle width direction before and after the widening chamber is detected by the first distance sensor and the second distance sensor. Have.

  According to a fourth aspect of the present invention, in any one of the first to third aspects of the present invention, the support means is a slide rail horizontally installed so as to be parallel to the vehicle width direction. A lower guide rail made of a rectangular tubular elongated member provided with a second slit in parallel and fixed to the upper surface of the water frame, and a rectangular tubular elongated member provided on the lower surface parallel to the longitudinal direction. An upper guide rail disposed above the third slit so as to face the second slit so as to face the second slit, and a thin plate-shaped elongate member. An inner rail in which a guide roller and a third guide roller are rotatably attached to a lower end side and an upper end side, respectively. The inner rail is configured such that the second guide roller and the third guide roller are formed of a lower guide rail. Inside It is installed inside the lower guide rail and the upper guide rail in a state of being connected to the second slit and the third slit so as to be rollable along the lower surface and the inner upper surface of the upper guide rail, respectively. Is what you do.

In the widening mechanism having the above structure, since the inner rail has a structure capable of sliding inside the upper guide rail and the lower guide rail, in addition to the function of any one of the first to third inventions, The upper guide rail and the lower guide rail have an effect that the inner rail moves relative to at least one of the upper guide rail and the lower guide rail, so that their positions in the longitudinal direction relatively change.
The second guide roller provided near the lower end of the inner rail has an effect of facilitating sliding with respect to the lower guide rail of the inner rail, and the third guide roller provided near the upper end of the inner rail. The roller has an effect of facilitating sliding of the upper guide rail with respect to the inner rail.
In addition, since the slide rail has a substantially rectangular parallelepiped outer shape, the slide rail has an effect that there is little restriction on an installation place.

According to a fifth aspect of the present invention, in any one of the first to fourth aspects of the invention, as the widening chamber, a first widening chamber and a second widening chamber are provided so as to face each other. The height in the height direction of the side panel, the front panel, and the rear panel of the first widening chamber is shorter than the length in the height direction of the side panel, the front panel, and the rear panel of the second widening chamber. The length of the side panel and the ceiling panel in the front-rear direction is shorter than the length of the side panel and the ceiling panel of the second widening chamber in the front-rear direction, and the length of the folded floor and the movable floor of the first widening chamber in the front-rear direction. Are formed to be shorter than the length in the front-rear direction of the folded floor and the movable floor of the second widening room.
In the widening mechanism having the above structure, in addition to the operation of any one of the first to fourth inventions, when the first widening chamber and the second widening chamber are stored inside the container, This has an effect that a part of the first widening chamber is arranged inside the second widening chamber.

A vehicle according to a sixth aspect is provided with the widening mechanism according to any one of the first to fifth aspects.
In the vehicle having the above-described structure, the first hydraulic cylinder or the second hydraulic cylinder is driven to expand and contract the first piston rod or the second piston rod, so that the widening chamber moves in the vehicle width direction and the container Has the effect of protruding and retracting from an opening provided on the side surface of the.

According to the first aspect, by moving the widening chamber in the vehicle width direction, the widening chamber protrudes from the opening provided on the side surface of the container to form a wide space inside the container or to run the vehicle. The widening chamber can be stored inside the container so as not to disturb the operation.
The widening mechanism of the present invention, characterized in that the widening chamber is moved in the vehicle width direction by the first hydraulic cylinder, has a lighter and simpler structure than the conventional widening mechanism having an electric motor, a slider and a rack. As a result, it is possible to reduce the weight of the vehicle and the manufacturing cost.

According to the second invention, as described in the operation of the first invention, when the operation of projecting the widening chamber completely housed in the container in the vehicle width direction is started, the second hydraulic pressure is used. The first hydraulic cylinder functions effectively when the cylinder functions effectively and starts the operation of storing the widening chamber completely projecting in the vehicle width direction from the opening provided on the side surface of the container in the container. I do.
Therefore, according to the second invention including such a first hydraulic cylinder and a second hydraulic cylinder, in addition to the effect of the first invention, regardless of the position of the widening chamber in the vehicle width direction, The operation of pushing out the widening room completely housed in the vehicle width direction, or storing the widening room almost completely projecting in the vehicle width direction from the opening provided on the side of the container inside the container. Can be performed efficiently.

When the widening chamber protruding from the opening provided on the side of the container in the vehicle width direction is stored inside the container, if the amount of movement in the vehicle width direction differs before and after the widening chamber, the widening chamber moves It becomes a state inclined to the direction. If the inclination exceeds the allowable range, it becomes difficult to move the widening chamber in the vehicle width direction.
On the other hand, in the third invention, by comparing the detection results of the first distance sensor and the second distance sensor, the difference in the amount of movement in the traveling direction of the vehicle before and after the widening chamber occurs. Can be known.
In the present invention, the control unit sends a command signal to the servomotor to adjust the flow rate of hydraulic oil sent from the hydraulic pump to the first hydraulic cylinder and the second hydraulic cylinder. The operation of the second hydraulic cylinder can be controlled.

Therefore, when there is a difference in the movement amount in the traveling direction of the vehicle before and after the widening chamber, the first piston rod of the first hydraulic cylinder and the second hydraulic cylinder of the first hydraulic cylinder installed before and after the widening chamber. By adjusting the amount of expansion and contraction of the second piston rod, it is possible to make the above-described difference in the amount of movement before and after the widening chamber less likely to occur.
That is, according to the third aspect of the invention, when the widening chamber is moved in the vehicle width direction, the widening chamber is hardly inclined with respect to the traveling direction of the vehicle. In addition to the above, there is an effect that the widening chamber is efficiently moved in the vehicle width direction in a short time.

  According to the fourth invention, in addition to the effects of any one of the first to third inventions, there is little restriction on the installation location of the slide rail, so that there is an effect that the degree of freedom in designing is large.

When the first widening chamber and the second widening chamber are housed inside the container and one of the widening chambers is not arranged inside the other widening chamber, the first widening chamber and the second widening chamber are not arranged. The length of the widening chamber in the vehicle width direction must be equal to or less than half the length of the container in the vehicle width direction.
On the other hand, in the fifth invention, since the first widening chamber is arranged inside the second widening chamber, the length in the vehicle width direction of the two widening chambers is set to the vehicle width of the container. It can be set to １ ／ or more of the length in the direction.
Therefore, according to the fifth aspect, in addition to the effects of the first to fourth aspects, the first widening chamber and the second widening chamber are formed in the vehicle width direction from the opening provided on the side surface of the container. When protruding, there is an effect that a wide space can be formed inside the container.

  According to the sixth aspect, in order to widen the internal space of the container, the widening chamber is made to protrude from the opening provided on the side surface of the container, and the widening chamber is stored inside the container so as not to be obstructed during traveling. can do.

(A) and (b) are a side view and a plan view, respectively, showing an example of an external appearance of a track provided with a widening mechanism according to an embodiment of the present invention. FIG. 2 is a view of the track shown in FIG. 1 as viewed from the rear. 1A is a cross-sectional view taken along the line AA in FIG. 1B, and FIG. 2B is an enlarged view of a portion C in FIG. FIG. 3A is a diagram showing a state in which a floor closing cylinder and two brackets are viewed from below in FIG. 3B, and FIG. 3B is a diagram showing a floor opening cylinder, a bracket, and a roller rail in FIG. 3B. And FIG. 3C is a diagram showing a state in which the relay link is viewed from below, and FIG. 4C is a view in the direction of arrow D in FIG. FIG. 3A is a diagram showing a state in which the widening chamber is housed in a container in FIG. 3A, and FIG. 3B is an enlarged view of a portion E in FIG. 3A. FIG. 3 is a sectional view taken along line BB in FIG. 2. 5A is a diagram in which illustration of a floor closing cylinder and a floor opening cylinder is omitted in FIG. 5A, and FIG. 5B is an enlarged view of a slide rail in FIG. 5A. (A) is an overall view of the inner rail shown in FIG. 7 (b), and (b) and (c) are a view taken in the direction of arrow F and a view taken in the direction of G in FIG. 7 (b), respectively. 7A is a view showing a state in which the upper guide rail 21 is slid with respect to the lower guide rail 22 in the slide rail shown in FIG. 7B, and FIGS. It is the figure which expanded a part of). FIG. 8 is a diagram showing a state in which one widening chamber is projected in the vehicle width direction in FIG. (A) is a figure which showed the connection state of the folding floor and the cylinder for floor closing, and (b) is a figure which showed the state which extended the piston rod of the cylinder for floor closing in (a) of FIG. . (A) is a figure which showed the connection state of the folding floor and the cylinder for floor opening, and (b) is a figure which showed the state which extended the piston rod of the cylinder for floor opening in (a) of FIG. . FIG. 2 is a block diagram illustrating a configuration of a control system of the widening mechanism according to the present invention.

The widening mechanism of the present invention and a vehicle provided with the same will be specifically described with reference to FIGS.
The widening mechanism according to the present invention is configured such that a part of a container mounted on a frame of a truck or a trailer is horizontally projected in a vehicle width direction (a direction perpendicular to a traveling direction) so that the internal space of the container is increased. Is to widen. Further, in the following embodiments, the case where the vehicle provided with the widening mechanism is a truck is described. However, even when the vehicle is a trailer, the widening mechanism described below and the vehicle including the same are provided. The effects and effects of the present invention according to the present invention are similarly exhibited.

FIGS. 1A and 1B are an example of a side view and a plan view of a track 1 having a widening mechanism according to the present invention, respectively. FIG. 2 is a view of the track 1 shown in FIG. FIG.
1 and 2 show a state in which the widening chambers 5 and 6 are made to protrude in the vehicle width direction of the truck 1, the flip-up door 4a is opened, and the stairs 8 are drawn out. In FIG. 2, illustration of the outrigger 3 is omitted.

3A is a cross-sectional view taken along line AA in FIG. 1B, and FIG. 3B is an enlarged view of a portion C in FIG. 3A. FIG. 4A is a diagram showing a state in which the floor closing cylinder 16a and the two brackets 13b and 13c are viewed from below in FIG. 3B, and FIG. 4B is a diagram showing FIG. 3B. FIG. 4C is a view showing a state in which the floor opening cylinder 16b, the bracket 13a, the roller rail 14, and the relay link 15 are viewed from below, and FIG. 4C is a view in the direction of arrow D in FIG. 4B.
FIG. 5A is a diagram showing a state where the widening chambers 5 and 6 are housed in the container 2 in FIG. 3A, and FIG. 5B is an enlarged view of a portion E in FIG. 5A. is there.
3 and 5, components related to the widening mechanism are mainly shown, and other components are omitted as appropriate to avoid complicating the drawing.

As shown in FIGS. 1 and 2, the truck 1 having the widening mechanism according to the present invention has a structure in which a container 2 mounted on a frame (not shown) can be used as a prayer room. In addition, electrohydraulic outriggers 3 are installed at four locations before and after the lower portion of the frame. Further, a flip-up door 4a is provided at an upper portion of the rear surface of the container 2, and a slide door 4b is provided inside the flip-up door 4a.
Further, inside the container 2, two widening chambers 5, 6 are housed so as to be able to protrude and retract from an opening provided in the side panel 2a.

One end of the flip-up door 4a is rotatably attached to the upper portion of the rear surface of the container 2, and is urged by a hydraulic spring 7 in a direction to open the door. Further, the slide door 4b is constituted by three doors which are installed so as to be movable in the vehicle width direction.
Further, a gas damper (not shown) is provided at a lower portion of the rear surface of the container 2, and a stair 8 which is driven by hydraulic pressure and turns is attached to be rotatable in a vertical direction with the upper end serving as a fulcrum.
Note that the gas damper has a structure that expands and contracts with the rotation of the stairs 8, and is installed so as to be in the most contracted state when the stairs 8 are in an inverted posture. Also, the stairs 8 are housed in an inverted posture between the flip-up door 4a and the slide door 4b so as not to be in the way while the truck 1 is running.

The widening chambers 5 and 6 include side panels 5a and 6a that form side surfaces of the container 2 together with the side panels 2a, and front panels 5b and 5b that extend from front and rear ends thereof so as to be orthogonal to the side panels 5a and 6a. A box formed of 6b and rear panels 5c, 6c, ceiling panels 5d, 6d extending vertically from the upper ends of the side panels 5a, 6a, and a part of the floor 9, and having an opening formed on a surface on the opposite side. It is in a state.
Further, below the container 2, side panels 5e, 6e for covering the lower side surface of the frame of the truck 1 are extended from lower ends of the side panels 5a, 6a. Doors 10 are provided, respectively.

When the widening chambers 5 and 6 are stored inside the container 2 and one of them is not arranged inside the other, the length of the widening chambers 5 and 6 in the vehicle width direction is 2 must be less than half the length in the vehicle width direction. On the other hand, in the widening mechanism of the present invention, when the widening chambers 5 and 6 are stored inside the container 2, the side panel 5 a is arranged so that a part of the widening chamber 5 is arranged inside the widening chamber 6. The front panel 5b and the rear panel 5c have a shorter length in the height direction than the side panel 6a, the front panel 6b and the rear panel 6c, and the side panel 5a and the ceiling panel 5d have a front-rear length in the front-rear direction. It is formed shorter than the panel 6d.
That is, the widening chamber 5 can be arranged inside the widening chamber 6, and the length of the widening chambers 5 and 6 in the vehicle width direction is equal to or more than １ ／ of the length of the container 2 in the vehicle width direction. Therefore, according to the widening mechanism of the present invention, a wide space is formed inside the container 2 by projecting the widening chambers 5 and 6 from the openings provided on the side surfaces of the container 2 to both sides in the vehicle width direction. It is possible.

As shown in FIGS. 3 to 5, the floor 9 has a fixed floor 9 a fixed horizontally at the center in the vehicle width direction with respect to the frame 1 a of the truck 1, and two sides of the fixed floor 9 a in the vehicle width direction. A pair of foldable floors 9b, 9b respectively installed so as to be adjacent to each other, and a pair of movable floors 9c, 9c respectively installed outside the vehicle width direction so as to be adjacent to the pair of foldable floors 9b, 9b. Consists of
The folding floor 9b is provided so as to be adjacent to the vehicle width direction and includes a pair of floor plates 12a and 12b connected via a plurality of hinges 11a. Both ends of the fixed floor 9a are connected via the plurality of hinges 11b. The floor boards 12a are connected to one end of each of the floor boards 12a. The other ends of the floor plates 12b are connected to one ends of the movable floors 9c via a plurality of hinges 11c, respectively, and the other ends of the movable floors 9c are orthogonal to the side panels 5a and 6a. Each is non-rotatably connected to its lower end.
Note that the length of the foldable floor 9b and the movable floor 9c of the widening room 5 is shorter in the front-rear direction than that of the foldable floor 9b and the movable floor 9c of the widening room 6.

A bracket 13a and a roller rail 14 are respectively installed on the floor plates 12a and 12b along a lower surface thereof in a vertical plane parallel to the vehicle width direction, and the bracket 13a has an end near the hinge 11a. One end of a relay link 15 is rotatably connected to the section.
The bracket 13a and the roller rail 14 are long members, and the rectangular roller rail 14 is attached to the lower surface of the floor plate 12b with the surface provided with the slit 14a parallel to the longitudinal direction facing downward. .

  The relay link 15 is a long member having a thin plate shape, and the guide roller 15a is attached to the bracket 13a so that the width direction (the direction perpendicular to the paper surface in FIG. 3B) is parallel to the direction of the rotation axis. It is installed at the end that is not connected to. The relay link 15 is installed so that a part thereof can freely move out of the slit 14 a and the guide roller 15 a can roll along the upper or lower surface inside the roller rail 14. That is, the other end of the relay link 15 is slidably and rotatably held in the longitudinal direction by the roller rail 14.

On the lower surface of the floor plate 12a, a floor closing cylinder 16a and a floor opening cylinder 16b are installed so that the piston rods 17a and 17b expand and contract in a vertical plane parallel to the vehicle width direction.
The floor closing cylinder 16a has a distal end side of a piston rod 17a rotatably connected to a lower surface of a floor plate 12a via a bracket 13b, and a base end side of a bracket base 18 fixed to a bracket base 18 fixed to the frame 1a. Are rotatably connected via a.
A base end of a floor opening cylinder 16b is rotatably connected to an end of the bracket 13a near the hinge 11b, and a piston rod 17b of the floor opening cylinder 16b (see FIG. 4B). ) Is rotatably connected to the relay link 15 between an intermediate portion in the longitudinal direction thereof and an end connected to the bracket 13a. Lighting 19 is installed on the ceiling panel 2b of the container 2 and the ceiling panels 5d and 6d of the widening rooms 5 and 6.

FIG. 6 is a sectional view taken along line BB in FIG. In FIG. 6, only some of the hinges 11a to 11c are denoted by reference numerals to avoid complicating the drawing.
As shown in FIG. 6, the floor closing cylinder 16a and the floor opening cylinder 16b are arranged so as to be parallel to the vehicle width direction with respect to a total of four front and rear ends of the pair of folded floors 9b, 9b. Each is installed. A plurality of slide rails 20 are provided on the lower surface side of the floor 9 so as to be parallel to the vehicle width direction and at substantially equal intervals in the front-rear direction.

FIG. 7A is a view in which illustration of the floor closing cylinder 16a and the floor opening cylinder 16b is omitted in FIG. 5A, and FIG. 7B is an enlarged view of the slide rail 20 in FIG. 7A. It is. In FIG. 7B, a cross member 1c constituting the frame 1a of the track 1 is indicated by a broken line.
8 (a) is an overall view of the inner rail 25 shown in FIG. 7 (b), and FIGS. 8 (b) and 8 (c) are views taken in the direction of arrow F in FIG. 7 (b), respectively. It is a G direction view. In FIG. 8B, each member is shown in a state enlarged from FIGS. 8A and 8C.
9A shows a state in which the upper guide rail 21 is slid with respect to the lower guide rail 22 in the slide rail 20 shown in FIG. 7B, and FIG. 9B and FIG. FIG. 9C shows a state where a part of FIG. 9A is enlarged. FIG. 10 shows a state in which the widening chamber 5 is projected in the vehicle width direction in FIG. Note that the guide rollers 23a to 23c and the stopper 24a indicated by broken lines in FIGS. 9B and 9C are illustrated in FIGS. 7B, 8A, and 8C. Is omitted as appropriate.

As shown in FIG. 7 (a), the frame 1a is provided with two side members 1b, 1b installed parallel to the front-rear direction of the vehicle body and above the side members 1b, 1b so as to be orthogonal to the side members 1b, 1b. And a plurality of cross members 1c. The slide rail 20 is installed on the cross member 1c.
As shown in FIG. 7B, the slide rail 20 includes an upper guide rail 21 having one end connected to the movable floor 9c, a lower guide rail 22 fixed to the upper surface of the cross member 1c, and guide rollers 23a, An inner rail 25 to which 23b and a stopper 24a are attached, and an inner rail receiver 26 installed at the other end of the lower guide rail 22 are provided. A guide roller 23c is provided inside the inner rail receiver 26 so as to be rotatable about a rotation axis parallel to the width direction of the guide rail 22 (the direction perpendicular to the plane of FIG. 7B).

As shown in FIG. 8A, the inner rail 25 is a long member having a thin plate shape, and the rotation axis of the guide roller 23a is parallel to the width direction (the direction perpendicular to the paper surface in FIG. 8A). Through holes (not shown) are formed at a total of eight locations along the upper end 25a and the lower end 25b, respectively.
Also, on the side surfaces 25c, 25c of the inner rail 25, the upper ends 25a are provided with six guide rollers 23b such that the vertical direction (the direction orthogonal to both the longitudinal direction and the width direction) and the direction of the rotation axis are parallel. And a stopper 24a is provided in the vicinity of the lower end 25b substantially at the center in the longitudinal direction.
Further, a stopper 24b is provided at the upper end 25a of the inner rail 25, and four guide rollers 23a on the upper end 25a side are provided at one end side of the inner rail 25 with the stopper 24b as a boundary. The four guide rollers 23a are provided on the other end side of the inner rail 25.

As shown in FIGS. 8 (b) and 8 (c), the upper guide rail 21 and the lower guide rail 22 have a rectangular tubular long shape having slits 21a, 22a provided on one side surface in parallel with the longitudinal direction. The upper guide rail 21 is a member, and is installed in parallel with the lower guide rail 22 at a predetermined interval with the slit 21a facing the slit 22a.
The inner rail 25 has four guide rollers 23a on the upper end 25a side and four guide rollers 23a on the lower end 25b side along the upper surface inside the upper guide rail 21 and the lower surface inside the lower guide rail 22, respectively. The upper guide rail 21 and the lower guide rail 21 are connected to the slits 21a and the slits 22a so as to be rotatable and rotatable along the inner surfaces of the upper guide rail 21 and the lower guide rail 22. It is installed inside the guide rail 22.
When the inner rail 25 moves in the longitudinal direction of the lower guide rail 22 and reaches the inner rail receiver 26, the guide roller 23c is rotatable while being in contact with the lower end 25b of the inner rail 25. The support 26 holds the lower guide rail 22 at a predetermined interval.

As shown in FIGS. 9A to 9C, one end of the upper guide rail 21 abuts against a stopper 24b (see FIG. 8A) provided on the upper end 25a of the inner rail 25. A stopper 24c is provided as much as possible, and a stopper 24d is provided at one end of the lower guide rail 22 so as to be able to abut against one end of the inner rail 25.
As described above, the slide rail 20 has a structure in which the inner rail 25 can slide inside the upper guide rail 21 and the lower guide rail 22.
The upper guide rail 21 and the lower guide rail 22 change their positions in the longitudinal direction relatively so that the inner rail 25 moves relative to at least one of the upper guide rail 21 and the lower guide rail 22. .

At this time, the four guide rollers 23a provided in the vicinity of the lower end 25b of the inner rail 25 have an action of facilitating sliding with respect to the lower guide rail 22 of the inner rail 25, and the upper end 25a of the inner rail 25 is provided. Have an effect of facilitating sliding of the upper guide rail 21 with respect to the inner rail 25.
Also, three guide rollers 23c provided on each of the side surfaces 25c, 25c of the inner rail 25 serve as inner guides in the width direction of the upper guide rail 21 and the lower guide rail 22 (the direction perpendicular to the paper surface in FIG. 8A). It has an effect of holding the position of the rail 25 so as not to shift.

Further, the stopper 24c provided on the upper guide rail 21 comes into contact with a stopper 24b (see FIG. 8A) provided on the upper end 25a of the inner rail 25, so that the upper guide rail 21 The stopper 24d provided on the lower guide rail 22 comes into contact with one end of the inner rail 25 to prevent the inner guide 25 from moving in the same direction. This has the effect of restricting the movement of the inner rail 25 so that the rail 25 does not move further in the same direction with respect to the lower guide rail 22.
Further, the stopper 24a provided on the inner rail 25 restricts the movement of the inner rail 25 so that the stopper 24a abuts on the guide roller 23c so that the inner rail 25 does not move further in the same direction with respect to the lower guide rail 22. It has the effect of doing.

As described above, the upper guide rail 21 and the lower guide rail 22 are connected to each other via the inner rail 25 so as to be slidable in the longitudinal direction, and one end of the upper guide rail 21 is connected to the movable floor 9c. .
Therefore, as shown in FIG. 7A, in a state where the widening chambers 5 and 6 are stored inside the container 2, the upper guide rail 21 connected to the movable floor 9 c of the widening chamber 5 moves with respect to the lower guide rail 22. When sliding, the movable floor 9c connected to one end of the upper guide rail 21 moves, so that the widening chamber 5 projects in the vehicle width direction. Then, as shown in FIG. 9 (a), when the slide rail 20 is extended most, the floor plates 12a and 12b rotate until they form a substantially same plane, and as shown in FIG. The floor 9b becomes flat.

FIG. 11 (a) is a view showing a connection state between the folding floor 9b and the floor closing cylinder 16a, and FIG. 11 (b) shows a state in which the piston rod 17a of the floor closing cylinder 16a is extended in FIG. 11 (a). FIG. 11A and 11B, illustration of the side panels 5a and 5e, the fixed floor 9a, and the slide rail 20 is omitted.
As described above with reference to FIGS. 3A and 3B, one end of the floor plate 12a is rotatably connected to a fixed floor 9a fixed to the frame 1a of the truck 1 via a hinge 11b. The other end of the floor plate 12a is rotatably connected to one end of the floor plate 12b via a hinge 11a, and the other end of the floor plate 12b is rotatably connected to the movable floor 9c via the hinge 11c. Are linked.
A lower end of the floor plate 12a is rotatably connected to a distal end of a piston rod 17a of a floor closing cylinder 16a via a bracket 13b, and a base end of the floor closing cylinder 16a is fixed to the frame 1a. It is rotatably connected to the provided bracket base 18 via a bracket 13c.
6A, the movable floor 9c is connected to the frame 1a of the truck 1 via the slide rail 20.

That is, the movable floor 9c is restricted from moving in a direction other than the vehicle width direction of the truck 1 by the slide rail 20, and the floor closing cylinder 16a rotates around the base end connected to the bracket 13b. Actions other than motion are restricted.
Thus, with the widening chamber 5 through an opening provided in the side surface of the container 2 is protruded in the vehicle width direction, the piston rod 17a of the floor close cylinder 16a as indicated by arrow H ₁ in FIG. 11 (a) If extended, by the force F ₁ acting perpendicularly to the floor 12a of the piston rod 17a via the bracket 13b, moment for rotation in the direction indicated floorboards 12a by arrows I ₁ occurs. As a result, the floor plate 12a is rotated in the direction indicated by the arrow I ₁ about the rotation axis of the hinge 11b.
Further, with the rotation of the floor plate 12a, the floor closing cylinder 16a is rotated in the direction indicated by the arrow _{J 1} around the base end, hinge 11a as floorboards 12b show respectively the arrow _{K 1} and the arrow _{L 1} , 11c. Further, the movable floor. 9c, in accordance with the rotation of the floor 12b, moves in the direction indicated by the arrow _{M 1.} As a result, the widening chamber 5 moves in a direction in which the widening chamber 5 is housed inside the container 2, and as shown in FIG. 11B, the folding floor 9b is folded into a mountain shape.

On the other hand, in a state where Oritatamiyuka 9b is folded in a mountain type, when the piston rod 17a of the floor close cylinder 16a as indicated by an arrow _{H 2} is shortened in FIG. 11 (b), the bracket 13b from the piston rod 17a by the force F ₂ acting perpendicularly to the floor plate 12a via a moment for rotating in the direction indicated floorboards 12a by the arrow I ₂ occurs. As a result, the floor plate 12a is rotated in the direction indicated by the arrow I ₂ about the rotation axis of the hinge 11b.
Further, with the rotation of the floor plate 12a, the floor closing cylinder 16a is rotated in the direction indicated by the arrow _{J 2} around the proximal end, hinge 11a as floorboards 12b show respectively the arrow _{K 2} and the arrow _{L 2} , 11c.
Further, the movable floor. 9c, in accordance with the rotation of the floor 12b, moves in the direction indicated by the arrow _{M 2.} The movable floor 9c is connected to the lower end, and the side panel 5a, the front panel 5b, the rear panel 5c, and the ceiling panel 5d connected to the lower end are also in the same direction as the movable floor 9c, and the folded floor 9b is flat. Move horizontally until it is.
As a result, the widening chamber 5 projects from the opening provided on the side surface of the container 2 in the vehicle width direction.

  The above-described operation described for the widening chamber 5 with reference to FIG. 11 is similarly exerted for the widening chamber 6. That is, in the widening mechanism of the present invention, the floor closing cylinder 16a is driven to extend the piston rod 17a while the widening chambers 5, 6 protrude in the vehicle width direction from the openings provided on the side surfaces of the container 2. Then, the floorboards 12a and 12b rotate so that the folding floor 9b is folded into a mountain shape, so that the widening rooms 5 and 6 are stored inside the container 2. When the piston rod 17a is shortened by driving the floor closing cylinder 16a in a state where the folding floor 9b is folded into a mountain shape, the floor plate 12a is opened in a direction in which the folding floor 9b folded into the mountain shape opens. , 12b rotate, the widening chambers 5, 6 project from the openings provided in the side surfaces of the container 2 in the vehicle width direction.

As shown in FIG. 5 (a), when the widening chambers 5 and 6 are stored inside the container 2, the folding floor 9b is folded into a mountain shape, and the floor 9b is folded in the width direction (perpendicular to the longitudinal direction). since the angle of expansion and contraction direction of the piston rod 17a of the direction) and the floor closed cylinder 16a is small to the force _{F 1} and _{F 2} acting perpendicularly to the floor 12a of the piston rod 17a via the bracket 13b is small.
On the other hand, as shown in FIG. 3A, when the widening chambers 5 and 6 project almost completely in the vehicle width direction from the openings provided on the side surfaces of the container 2, the folded floor 9b is almost flat. Since the angle between the width direction (the direction orthogonal to the longitudinal direction) of the floor plate 12a and the expansion and contraction direction of the piston rod 17a of the floor closing cylinder 16a is large, the floor plate 12a is moved from the piston rod 17a to the floor plate 12a via the bracket 13b. force _{F 1} and _{F 2} acting perpendicularly Te is large.

Therefore, when the widening chambers 5 and 6 completely accommodated in the container 2 are pushed out in the vehicle width direction, or when the widening chambers slightly protrude in the vehicle width direction from the openings provided on the side surfaces of the container 2. When the containers 5 and 6 are completely stored in the container 2, the efficiency with which the force for expanding and contracting the piston rod 17 a of the floor closing cylinder 16 a is converted to the force for rotating the floor plates 12 a and 12 b depends on the efficiency of the widening chamber 5. , 6 are lower than when they are at other positions in the vehicle width direction.
On the other hand, when the widening chambers 5 and 6 project almost completely in the vehicle width direction from the openings provided on the side surfaces of the container 2, and the folded floor 9b is almost flat, The force for expanding and contracting the piston rod 17a of the cylinder 16a is efficiently converted to the force for rotating the floor plates 12a and 12b.
That is, the floor closing cylinder 16a starts the operation of storing the widening chambers 5 and 6 that almost completely protrude in the vehicle width direction from the opening provided on the side surface of the container 2 inside the container 2, The widening chambers 5 and 6 projecting almost completely in the vehicle width direction from the openings provided in the side surfaces of the container 2 are pushed one last time to completely expand the widening chambers 5 and 6 from inside the container 2. This is a structure suitable for protruding or the like.

FIG. 12 (a) is a view showing a connection state between the folding floor 9b and the cylinder 16b for opening the floor, and FIG. 12 (b) shows a state where the piston rod 17b of the cylinder 16b for opening the floor is extended in FIG. 12 (a). FIG. In FIGS. 12A and 12B, illustration of the side panels 5a and 5e, the fixed floor 9a, and the slide rail 20 is omitted.
As already described with reference to FIGS. 3A and 3B, the bracket 13a is provided on the lower surface of the floor plate 12a in parallel with the width direction (the direction orthogonal to the longitudinal direction). One end of a relay link 15 is rotatably connected to the bracket 13a at an end near the hinge 11a, and the base end of the floor opening cylinder 16b is rotated at an end near the hinge 11b. They are freely connected.
A roller rail 14 is provided on the lower surface of the floor plate 12b in parallel with the width direction (a direction orthogonal to the longitudinal direction), and the other end of the relay link 15 is rotatable by the roller rail 14 and the floor plate. It is slidably held in the width direction of 12b (direction orthogonal to the longitudinal direction).
Further, the distal end side of the piston rod 17b of the floor opening cylinder 16b is rotatably connected to the relay link 15 between an intermediate portion in the longitudinal direction and an end connected to the bracket 13a.

Accordingly, in a state where Oritatamiyuka 9b is folded in a mountain type, when the piston rod 17b of the cylinder 16b for opening the floor as indicated by the arrow H ₁ is extended in FIG. 12 (a), the relay link from the piston rod 17b by the force F ₃ acting perpendicularly to 15, moment is generated that causes rotation in the direction indicated the relay link 15 with an arrow N _1.
Further, by the force F ₄ acting perpendicularly to the roller rails 14 from the relay link 15 via a guide roller 15a, a moment which tends to rotate in the direction indicated floorboards 12b by arrow K ₂ is generated. As a result, the relay link 15 rotates in the direction indicated by the arrow _{N 1} around the end coupled to the bracket 13a, hinge 11a as floorboards 12b show respectively the arrow _{K 2} and the arrow _{L 2,} 11c times It rotates around the moving axis.
Further, with the rotation of the floor 12b, floor 12a is rotated in the direction indicated by the arrow I ₂ about the rotation axis of the hinge 11b, the floor opening cylinder 16b is indicated by an arrow J ₂ around the proximal end Rotate in the direction.
At this time, the guide roller 15a relatively moves inside the roller rail 14 in a direction approaching the hinge 11a. The movable floor 9c is moved in the direction indicated by the arrow M _2. As a result, the widening chamber 5 moves in a direction in which the widening chamber 5 projects outside the container 2, and the folding floor 9b becomes flat as shown in FIG. As a result, the widening chamber 5 completely projects from the opening provided on the side surface of the container 2 in the vehicle width direction.

On the other hand, with the widening chamber 5 protruding in the vehicle width direction from the opening provided on the side surface of the container 2, the piston rod 17 b of the floor opening cylinder 16 b moves as shown by an arrow H ₂ in FIG. If shortened, by the force F ₅ acting perpendicular to the relay link 15 from the piston rod 17b, moment is generated that causes rotation in the direction indicated the relay link 15 with an arrow N _2.
Further, by the force F ₆ acting perpendicularly to the roller rails 14 from the relay link 15 via a guide roller 15a, it tends to rotate the floor plate 12b about the rotation axis of the hinge 11a in the direction indicated by arrow K ₁ Moment occurs. As a result, the relay link 15 rotates in the direction indicated by the arrow _{N 2} around the end coupled to the bracket 13a, hinge 11a as floorboards 12b show respectively the arrow _{K 1} and the arrow _{L 1,} 11c times It rotates around the moving axis.
Further, with the rotation of the floor 12b, floor 12a is rotated in the direction indicated by the arrow I ₁ about the rotation axis of the hinge 11b, the floor opening cylinder 16b is indicated by the arrow J ₁ about the proximal end Rotate in the direction.
At this time, the guide roller 15a relatively moves inside the roller rail 14 in a direction approaching the hinge 11c. The movable floor 9c is moved in the direction indicated by the arrow M _1. As a result, the widening chamber 5 moves in a direction in which the widening chamber 5 is housed inside the container 2, and as shown in FIG. 12A, the folding floor 9b is folded into a mountain shape.

As already described with reference to FIG. 11, the above-described operation described with reference to FIG. That is, in the widening mechanism of the present invention, when the floor opening cylinder 16b is driven to extend the piston rod 17b while the folding floor 9b is folded in a mountain shape, the folding in the mountain shape is performed. When the floor plates 12a and 12b rotate in the direction in which the floor 9b opens, the widening chambers 5 and 6 project from the openings provided on the side surfaces of the container 2 in the vehicle width direction.
When the widening chambers 5 and 6 are protruded from the openings provided on the side surfaces of the container 2 in the vehicle width direction and the floor opening cylinder 16b is driven to shorten the piston rod 17b, the folding floor 9b is raised. By rotating the floor plates 12a and 12b so as to be folded into a mold, the widening chambers 5 and 6 are stored inside the container 2.

As shown in FIG. 3A, when the widening chambers 5 and 6 project almost completely in the vehicle width direction from the openings provided on the side surfaces of the container 2, the folded floor 9b is almost flat. becomes, for expansion and contraction direction of the piston rod 17b in the longitudinal direction and the floor opening cylinder 16b of the relay link 15 is almost parallel to the state, the force F ₃ acting perpendicularly to the relay link 15 from the piston rod 17b F ₅ is minimized. As a result, a minimum force also _{F 4} and _{F 6} acting perpendicular to the floor 12b of the relay link 15 via a roller rail 14.
On the other hand, as shown in FIG. 5A, when the widening chambers 5 and 6 are stored inside the container 2, the folding floor 9b is folded into a mountain shape, and the longitudinal direction of the relay link 15 and the floor opening are opened. since the angle of the expansion and contraction direction of the piston rod 17b of the cylinder 16b is increased, the force _{F 3} and _{F 5} which acts perpendicularly to the relay link 15 from the piston rod 17b is increased. As a result, greater force _{F 4} and _{F 6} acting perpendicular to the floor 12b of the relay link 15 via a roller rail 14.

Therefore, when the widening chambers 5 and 6 project almost completely in the vehicle width direction from the openings provided on the side surfaces of the container 2, and the folding floor 9b is almost flat, the floor opening cylinder 16b The efficiency with which the force for expanding and contracting the piston rod 17b is converted into the force for rotating the floor plates 12a and 12b is lower than when the widening chambers 5 and 6 are located at other positions in the vehicle width direction.
On the other hand, when the widening chambers 5 and 6 completely housed in the container 2 are pushed out in the vehicle width direction, or when the widening chambers 5 and 6 are slightly protruded in the vehicle width direction from the openings provided on the side surfaces of the container 2. When completely storing the widening chambers 5 and 6 inside the container 2, the force for expanding and contracting the piston rod 17b of the floor opening cylinder 16b is efficiently converted to the force for rotating the floor plates 12a and 12b.
That is, the floor opening cylinder 16b pushes out the widening chambers 5 and 6 completely accommodated in the container 2 in the vehicle width direction, or slightly protrudes in the vehicle width direction from the opening provided on the side surface of the container 2. This is a structure suitable for completely storing the widened chambers 5 and 6 in the container 2 inside the container 2.

As described above, in the floor closing cylinder 16a, the operation of housing the widening chambers 5, 6 that completely project in the vehicle width direction from the opening provided on the side surface of the container 2 starts inside the container 2. The piston rod 17a is expanded and contracted when the widening chambers 5 and 6 that are almost completely protruded in the vehicle width direction from the opening provided on the side surface of the container 2 are pushed. The force is efficiently converted into a force for rotating the floor plates 12a and 12b.
On the other hand, in the floor opening cylinder 16b, the operation of projecting the widening chambers 5 and 6 completely housed in the container 2 in the vehicle width direction is started, or the state where the widening chambers 5 and 6 are almost housed in the container 2 is started. When the widening chambers 5 and 6 are finally pulled into the container 2 a little more to be completely housed inside the container 2, the force for expanding and contracting the piston rod 17b is the force for rotating the floor plates 12a and 12b. Is efficiently converted to

That is, when starting the operation of projecting the widening chambers 5 and 6 completely accommodated in the container 2 in the vehicle width direction, the floor opening cylinder 16b functions effectively and is provided on the side surface of the container 2. The floor closing cylinder 16a functions effectively when the operation of housing the widening chambers 5 and 6 completely projecting from the opening in the vehicle width direction into the container 2 is started.
As described above, in the widening mechanism of the present invention, the floor closing cylinder 16a and the floor opening cylinder 16b are used in combination, so that the widening chambers 5 and 6 are completely inside the container 2 regardless of the position in the vehicle width direction. The stored widening chambers 5, 6 are pushed out in the vehicle width direction, and the widening chambers 5, 6 projecting almost completely in the vehicle width direction from the openings provided on the side surfaces of the container 2 are stored in the container 2. Operation can be performed efficiently.
Therefore, according to the widening mechanism of the present invention, by moving the widening chambers 5 and 6 in the vehicle width direction, the container 2 mounted on the frame 1a of the vehicle such as a truck or a trailer has a short inside. A wide space can be formed with time, and the widening chambers 5 and 6 can be housed inside the container 2 so as not to be in the way during traveling.
In the widening mechanism of the present invention, the widening chambers 5 and 6 are moved in the vehicle width direction by the floor closing cylinder 16a and the floor opening cylinder 16b, a conventional widening mechanism including an electric motor, a slider, and a rack. Since the structure is lighter and simpler than the mechanism, it is possible to reduce the weight of the vehicle and reduce the manufacturing cost.

FIG. 13 is a block diagram showing the configuration of the control system of the widening mechanism of the present invention.
As shown in FIG. 13, the control system of the widening mechanism reciprocates the pistons 17a and 17b with respect to the floor closing cylinder 16a and the floor opening cylinder 16b installed in front of and behind the widening chambers 5 and 6, respectively. Pump 27 for supplying and discharging hydraulic oil for performing the operation, a servomotor 28 for driving the hydraulic pump 27, and operating or stopping the servomotor 28 and sending a command signal for designating the number of rotations and the direction of rotation. A control unit 29, an operation panel 30 for operating the control unit 29, and a front panel 5 d, 6 d installed on the upper surface near the opening end of the ceiling panels 5 d, 6 d in front of and behind the widening chambers 5, 6, And a position sensor 32 for detecting the position of the widening chambers 5 and 6 in the vehicle width direction.

In the control system of the widening mechanism having the above structure, when a switch for driving the floor closing cylinder 16a and the floor opening cylinder 16b by operating the operation panel 30 is turned on, the control unit 29 instructs the servomotor 28 in advance. A command signal for rotating in a predetermined direction at the set number of rotations is sent. As a result, a predetermined amount of hydraulic oil is supplied and discharged from the hydraulic pump 27 to the floor closing cylinder 16a and the floor opening cylinder 16b installed in front of and behind the widening chambers 5, 6, respectively. Note that the setting values of the rotation direction and the number of rotations of the servomotor 28 can be changed using the operation panel 30.
At this time, the amount of movement of the widening chambers 5 and 6 in the vehicle width direction before and after the widening chambers 5 and 6 is detected by distance sensors 31 installed on the upper surfaces near the opening ends of the ceiling panels 5d and 6d in front of and behind the widening chambers 5 and 6. You. Then, based on the detection result of the distance sensor 31, the control unit 29 expands and contracts the piston rods 17a and 17b of the floor closing cylinder 16a and the floor opening cylinder 16b installed in front of and behind the widening chambers 5 and 6, respectively. When the position sensor 32 detects that the widening chambers 5 and 6 have moved to a predetermined position while adjusting the amount, the operation of the floor closing cylinder 16a and the floor opening cylinder 16b is performed based on the detection result. Stop.

When the widening chambers 5 and 6 are moved in the vehicle width direction and the amount of movement is different before and after the widening chambers 5 and 6, the widening chambers 5 and 6 are inclined with respect to the traveling direction of the vehicle. When the inclination exceeds the allowable range, it becomes difficult to move the widening chambers 5 and 6 in the vehicle width direction.
On the other hand, the widening mechanism of the present invention moves in the traveling direction of the vehicle before and after the widening chambers 5 and 6 based on the detection results of the two distance sensors 31 installed in front and behind the widening chambers 5 and 6. The control system adjusts the amount of expansion and contraction of the piston rod 17a of the cylinder 16a for closing the floor and the piston rod 17b of the cylinder 16b for opening the floor provided in front and rear of the widening chambers 5 and 6, respectively, so that there is no difference in the amount. It is a structure that is performed. Therefore, there is little difference in the above-described movement amount before and after the widening chambers 5 and 6.
That is, according to the widening mechanism of the present invention, when the widening chambers 5 and 6 are moved in the vehicle width direction, the widening chambers 5 and 6 are hardly inclined with respect to the traveling direction of the vehicle. Of the widening chambers 5 and 6 can be efficiently performed in a short time.

In the above-described embodiment, the slide rail 20 is used as the support means for supporting the movable floor 9c so as to be slidable in the vehicle width direction. However, the widening mechanism of the present invention is limited to such a structure. is not. For example, instead of the slide rail 20, a plurality of guide rollers are attached to the lower surface so as to be rotatable around a horizontally installed rotating shaft, and an elongate member having one end connected to the movable floor 9c; The guide roller may be arranged so as to be able to roll, and a structure using a guide rail for holding the long member slidably in the vehicle width direction may be adopted.
According to such a structure, similarly to the slide rail 20, a function as a support means for supporting the movable floor so as to be slidable in the vehicle width direction is exhibited. However, as shown in the embodiment, when the slide rail 20 is used as the support means, the outer shape of the slide rail 20 is substantially a rectangular parallelepiped, and there are few restrictions on the installation location. There is a merit that is large.

  INDUSTRIAL APPLICABILITY The present invention is applicable to worship, when used as a facility for accommodating evacuees in the event of a disaster, and for other versatile uses.

  DESCRIPTION OF SYMBOLS 1 ... Truck 1a ... Frame 1b ... Side member 1c ... Cross member 2 ... Container 2a ... Side panel 2b ... Ceiling panel 3 ... Outrigger 4a ... Flipping door 4b ... Sliding door 5, 6 ... Widening room 5a, 6a ... Side panel 5b , 6b ... front panel 5c, 6c ... rear panel 5d, 6d ... ceiling panel 5e, 6e ... side panel 7 ... hydraulic spring 8 ... stairs 9 ... floor 9a ... fixed floor 9b ... folding floor 9c ... movable floor 10 ... emergency door 11a to 11c Hinge 12a, 12b Floor plate 13a to 13c Bracket 14 Roller rail 14a Slit 15 Relay relay 15a Guide roller 16a Floor closing cylinder 16b Floor opening cylinder 17a, 17b Piston rod 18 Bracket base 1 ... Lighting 20 ... Slide rail 21 ... Upper guide rail 21a ... Slit 22 ... Lower guide rail 22a ... Slits 23a-23c ... Guide rollers 24a-24d ... Stopper 25 ... Inner rail 25a ... Top 25b ... Bottom 25c ... Side 26 ... Inner rail Receiving 27 ... Hydraulic pump 28 ... Servo motor 29 ... Control unit 30 ... Operation panel 31 ... Distance sensor 32 ... Position sensor

Claims (6)

In a vehicle in which a container provided with an opening on a side surface is mounted on a frame, a widening chamber housed inside the container is projected in the vehicle width direction so as to be able to protrude and retract from the opening inside the container. A widening mechanism that widens the space,
A fixed floor horizontally fixed to the frame at the center in the vehicle width direction,
A folding floor installed outside the vehicle width direction so as to be adjacent to the fixed floor,
A movable floor installed outside the vehicle width direction so as to be adjacent to the folding floor;
Support means installed between the frame and the widening chamber to support the movable floor slidably in the vehicle width direction,
A first hydraulic cylinder installed below the folding floor so that a first piston rod expands and contracts in a vertical plane parallel to the vehicle width direction;
A hydraulic pump that supplies and discharges hydraulic oil to and from the first hydraulic cylinder,
The folding floor includes a first floor plate and a second floor plate which are installed adjacent to each other in the vehicle width direction and are connected to each other via a first hinge,
The widening chamber is
The folding floor and the movable floor,
A side panel that constitutes a part of the side surface of the container and is connected to the lower end of the movable floor,
A front panel and a rear panel extending from the front end and the rear end, respectively, so as to be orthogonal to the side panel;
A ceiling panel vertically extending from an upper end of the side panel,
In the folding floor, the first floor panel is connected to the fixed floor via a second hinge, and the second floor panel is connected to the movable floor via a third hinge,
The first hydraulic cylinder has a base end side rotatably connected to the frame via a first bracket, and a distal end side of the first piston rod has a second end on a lower surface of the first floor plate. Pivotally connected via a bracket,
The first floor plate and the second floor plate are folded such that the first floor plate is pushed up when the first piston rod of the first hydraulic cylinder is extended, so that the folding floor is folded into a mountain shape. A widening mechanism characterized in that the floorboard rotates. A second hydraulic cylinder installed below the folding floor so that a second piston rod expands and contracts in the vertical plane;
An elongate third bracket installed along the lower surface of the first floorboard in the vertical plane;
A first slit is formed in the lower surface of the rectangular member in parallel with the longitudinal direction, and is arranged on the same straight line with respect to the third bracket when the folding floor is flat. A roller rail installed on the lower surface of the second floor plate,
One end is rotatably connected to the vicinity of the distal end of the third bracket, and a first guide roller provided at the other end is slidably and rotatably held in the longitudinal direction by the roller rail. With a long relay link,
The second hydraulic cylinder includes:
A proximal end is rotatably connected to an end of the third bracket close to the second hinge, and a distal end of the second piston rod is rotatably connected to the relay link. Are connected between the longitudinal middle portion and the one end connected to the third bracket,
When the second piston rod of the second hydraulic cylinder is extended, the first floor plate and the second floor plate rotate in a direction in which the folded floor that is folded into a mountain shape opens. The widening mechanism according to claim 1, wherein: Two sets of the first hydraulic cylinder and the second hydraulic cylinder are provided, and each set of the first hydraulic cylinder and the second hydraulic cylinder is respectively installed near a front end and a rear end with respect to the folding floor. As well as
A servomotor that drives the hydraulic pump,
A control unit for sending a command signal for rotating the servo motor at a desired rotation speed in a desired direction;
A first distance sensor and a second distance sensor that are respectively installed on the upper surfaces of the front end and the rear end of the ceiling panel and detect a distance to the side panel of the container,
The control unit operates the first hydraulic cylinder and the second hydraulic cylinder via the servomotor and the hydraulic pump based on detection results of the first distance sensor and the second distance sensor. 3. The widening mechanism according to claim 2, wherein the width is controlled. The support means is a slide rail that is horizontally installed so as to be parallel to the vehicle width direction,
A lower guide rail made of a rectangular tubular elongated member provided with a second slit parallel to the longitudinal direction on the upper surface and fixed to the upper surface of the frame;
A third slit made of a rectangular tubular long member and provided on the lower surface in parallel with the longitudinal direction is arranged above the lower guide rail so as to face the second slit so as to face the second slit. The upper guide rail and
A second guide roller and a third guide roller, each of which is formed of a thin plate-shaped long member, and which is rotatably attached to a lower end side and an upper end side thereof, respectively.
This inner rail is
The second slit and the third guide roller are rotatable along the lower surface inside the lower guide rail and the upper surface inside the upper guide rail, respectively. The widening mechanism according to any one of claims 1 to 3, wherein the widening mechanism is installed inside the lower guide rail and the upper guide rail in a state communicating with the slit. A first widening chamber and a second widening chamber arranged to face each other as the widening chamber;
A height direction length of the side panel, the front panel, and the rear panel of the first widening chamber is larger than a height direction length of the side panel, the front panel, and the rear panel of the second widening chamber. Short,
The length in the front-rear direction of the side panel and the ceiling panel of the first widening chamber is shorter than the length of the side panel and the ceiling panel of the second widening chamber in the front-back direction,
The length of the foldable floor and the movable floor in the first widening room in the front-back direction is shorter than the length of the second floor in the front-back direction of the foldable floor and the movable floor. The widening mechanism according to any one of claims 1 to 4, wherein: A vehicle comprising the widening mechanism according to any one of claims 1 to 5.

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