JP6099079B2 - Wide body - Google Patents

Description

  The present invention relates to a widened vehicle body that can be used for an exhibition vehicle, a lodging vehicle, and the like.

  Conventionally, as this type of widened vehicle body, one proposed in Patent Document 1 below is known.

JP-A-8-85378

 The conventional widened vehicle body has a complicated structure, is expensive, and tends to be heavy.

  The present invention has been made in view of such a situation, and an object of the present invention is to widen a vehicle body that can widen the vehicle body with a simple configuration and can prevent a step on the floor of the vehicle body when the vehicle is widened. Is to provide.

One aspect of the present invention is a widened vehicle body, which is mounted on a chassis and has an opening on at least one side surface;
A box-shaped widened portion having a side wall portion, a floor portion, a ceiling portion, a front wall portion and a rear wall portion, movable laterally with respect to the vehicle body body, and the side wall portion closes the opening of the side surface when retracted;
A drive mechanism for moving the box-shaped widened portion with respect to the vehicle body;
The raising and lowering floor part on the vehicle body side that can be raised and lowered so as not to hit the floor part when the box-shaped widening part is retracted;
An elevating mechanism for elevating and driving the elevating floor part,
The box-shaped widened portion has an upper slider and a lower slider on the upper and lower sides of the front wall portion and the rear wall portion, respectively, and the upper slider and the lower slider move respectively by an upper guide rail and a lower guide rail fixed to the vehicle body. Is supported in a state where the floor portion of the box-shaped widened portion and the floor surface height of the vehicle body coincide with each other, and the lift floor portion is located between the lower guide rails,
The drive mechanism includes a horizontal frame fixedly arranged on the vehicle body along the lower side of the front and rear lower guide rails so as to surround the elevating floor, and a vertical frame that connects them. A fixed frame,
A lead wire rope of the box-shaped widened portion which is one end respectively fixed to each of the lower slider, the pull wire rope,
A sheave pivotally supported in the vicinity of the side opening in each lateral frame;
Provided in the vertical frame, and has a cylinder for pulling or feeding each wire rope;
The wire rope for drawing is adapted to be pulled by the cylinder after being wound around the sheave,
The elevating mechanism has a plurality of mutually parallel links connecting the elevating floor portion and the chassis side, and an elevating cylinder for rotating the links, and when the box-shaped widened portion is retracted, the elevating mechanism The floor portion is in a lowered position, and when the box-shaped widened portion is pulled out, the raising / lowering floor portion has the same height as the floor portion of the box-shaped widened portion.

  It should be noted that any combination of the above-described constituent elements, and those obtained by converting the expression of the present invention between methods and systems are also effective as aspects of the present invention.

  According to the widened vehicle body of the present invention, the box-shaped widened portion can be pulled out and retracted from the vehicle body, and the vehicle body width can be widened with a simple configuration. It is possible to prevent a step from occurring between the surface and the floor surface on the box-shaped widened portion side.

It is an embodiment of the widened vehicle body concerning the present invention, and is a perspective view of a widened state. It is a perspective view of the same drawing-in state. It is a typical explanatory view of a drive mechanism. In embodiment, it is sectional drawing seen from the rear side of the widened vehicle body. It is a floor raising / lowering mechanism of a vehicle body, wherein (A) is a side sectional view and (B) is a partial plan view. It is a hydraulic circuit diagram in an embodiment.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. In addition, the same code | symbol is attached | subjected to the same or equivalent component, member, process, etc. which are shown by each drawing, and the overlapping description is abbreviate | omitted suitably. In addition, the embodiments do not limit the invention but are exemplifications, and all features and combinations thereof described in the embodiments are not necessarily essential to the invention.

  As shown in FIGS. 1 to 4, reference numeral 1 denotes a freight vehicle, which has a rectangular parallelepiped box-shaped vehicle body 3 having an opening 4 on one side surface, and a core structure for the box body 4. The widened vehicle body 2 combined with the box-shaped widened portion 10 is mounted on a chassis (not shown).

  The box-shaped widened portion 10 includes a side wall portion 11, a floor portion 12, a ceiling portion 13, a front wall portion 14 and a rear wall portion 15, and the inside thereof communicates with the vehicle body 3. The box-shaped widened portion 10 integrally has an upper slider 16 and a lower slider 17 on the upper and lower sides of the front wall portion 14 and the rear wall portion 15, respectively. The upper slider 16 and the lower slider 17 are upper guide rails fixed to the vehicle body 3. 6 and the lower guide rail 7 are slidably supported. As a result, the box-shaped widened portion 10 is slidable laterally with respect to the vehicle body 3, the vehicle width of the widened vehicle body 2 can be widened when pulled out to the side, and the side wall 11 is located on the side surface of the vehicle body 3 when retracted. A box-shaped vehicle body having a normal vehicle body width is formed by closing the opening 4.

  The upper slider 16 and the lower slider 17 are fixed along extension lines of upper and lower edges of the front wall portion 14 and the rear wall portion 15. The upper guide rail 6 and the lower guide rail 7 have, for example, a U-shaped cross section, and the ceiling surfaces of the upper and lower guide rails 6 and 7 so that the upper slider 16 and the lower slider 17 can slide smoothly. In addition, rollers 21 and 22 that are in contact with the bottom surface are pivotally attached (rotatably attached) to the sliders 16 and 17, respectively. The number and arrangement of the rollers are arbitrary.

  As shown in FIGS. 4 and 5, a part of the floor surface of the vehicle body 3 into which the floor 12 enters when the box-shaped widened portion 10 is retracted from a lowered position that does not hinder the movement of the floor 12. The floor portion 30 is a liftable floor portion 30 that can be lifted and lowered to a raised position that is the same height as the floor portion 12 when the widened portion 10 is pulled out (when widened). The elevator floor 30 is located between the front and rear lower guide rails 7. The raising / lowering mechanism of the raising / lowering floor part 30 is mentioned later.

  The drive mechanism 40 that slides the box-shaped widened portion 10 with respect to the vehicle body 3 includes a pull-out wire rope 41F, 41R of the box-shaped widened portion 10 with one end fixed to the front and rear lower sliders 17, and a pull-in wire rope. 42F, 42R, and a widening hydraulic cylinder 50 that pulls or feeds the wire ropes 41F, 41R, 42F, 42R.

  Specifically, a substantially U-shaped fixed frame 60 is fixed to the vehicle body 3 so as to surround the floor 12 when the box-shaped widened portion 10 is retracted (in other words, so as to surround the lifting floor 30). . The fixed frame 60 includes front and rear horizontal frames 60a and 60b and a vertical frame 60c connecting them, and the main body of the widening hydraulic cylinder 50 is attached to the vertical frame 60c. Four sheaves (pulleys) 51 </ b> A to 51 </ b> D are pivotally attached to a bracket 50 b fixed to the tip of the piston rod 50 a of the cylinder 50. A mechanism for linearly guiding the piston rod 50a is provided so that a lateral load is not applied to the piston rod 50a (not shown). The front and rear horizontal frames 60a and 60b are arranged along the lower side so as to support the front and rear lower guide rails 7, and a sheave is attached to the tip of each horizontal frame 60a and 60b (near the side opening). 52F and 52R are pivotally supported (supported rotatably). As shown in the schematic explanatory diagram of FIG. 3, the wire ropes 41 </ b> F and 41 </ b> R having one ends fixed to the lower slider 17 via the length adjusters 57 </ b> F and 57 </ b> R are wound around the sheaves 52 </ b> F and 52 </ b> R. When the wire ropes 41F and 41R are pulled, the driving force in the direction of pulling out the box-shaped widened portion 10 is generated. The direction change sheaves 53A and 53B of the wire ropes 41F and 42F are pivotally supported at the front corners of the substantially U-shaped fixed frame 60. Similarly, the direction change sheaves 53C and 53D of the wire ropes 41R and 42R are pivotally supported at the rear corners of the substantially U-shaped fixed frame 60. Further, sheaves 54 and 55 are pivotally supported on the vertical frame 60c.

  In the schematic explanatory view of FIG. 3, in order to understand the tension state of the wire rope, the sheave arrangement that overlaps in the vertical direction is actually also shifted. In this figure, a drawing wire rope 41F having one end fixed to the front lower slider 17 via a length adjuster 57F is stretched in the order of sheaves 52F, 53A, 51A and the other end is fixed to the vertical frame 60c. It is fixed at 58F. Similarly, the drawing wire rope 41R having one end fixed to the rear lower slider 17 via the length adjuster 57R is stretched in the order of sheaves 52R, 53C, 54, 51C, and the other end is fixed to the vertical frame 60c. It is fixed with the tool 58R.

  On the other hand, the pull-in wire rope 42F, which has one end fixed to the front lower slider 17 with a length adjuster 59F and folded back with a wire guide 56F fixed to the slider 17, is stretched in the order of sheaves 53B, 55, 51B. The other end of the vertical frame 60c is fixed by a fixing tool 61F. Similarly, the pull-in wire rope 42R, one end of which is fixed to the rear lower slider 17 by the length adjuster 59R and folded back by the wire guide 56R fixed to the slider 17, is stretched in the order of the sheaves 53D and 51D. The other end of the frame 60c is fixed by a fixing tool 61R.

  As a result, when the piston rod 50a of the cylinder 50 is extended, the pulling wire rope 41 is pulled by an amount corresponding to a length approximately twice as long as the stroke of the piston rod 50a. It becomes the widened state which protruded to the side. At this time, the pull-in wire rope 42 is fed out in an equal amount, so that the widening operation is not hindered.

  When the piston rod 50a of the cylinder 50 is contracted, the pull-in wire rope 42 is now pulled by an amount corresponding to about twice as long as the stroke of the piston rod 50a. It is housed and the opening 4 is closed by the side wall 11 (the side of the vehicle body 3 and the outer surface of the side wall 11 are substantially flush). At this time, the drawing wire rope 41 is fed out in an equal amount, so that it does not hinder the storing operation.

  A part of the floor surface of the vehicle body 3 into which the floor portion 12 of the box-shaped widened portion 10 enters, that is, an inner portion of the substantially U-shaped fixed frame 60 is a lifting floor portion 30, which prevents the floor portion 12 from being pulled in. It is in the lowered position so as not to become. Further, in the widened state in which the box-shaped widened portion 10 is pulled out, a step is generated between the floor surface of the vehicle body 3 and the floor portion 12 if the liftable floor portion 30 remains low after the floor portion 12 has moved. . For this purpose, an elevating mechanism 70 shown in FIGS. 5A and 5B is provided. In this figure, the raising / lowering floor portion 30 is obtained by mounting and fixing a floor plate 32 on a floor plate support frame 31, and a bracket 34 fixed on a joist 33 in the front-rear direction fixed on the chassis of the lorry 1. The frames 31 are connected by a link 35. That is, the upper end of the link 35 is pivotally attached to the frame 31, and the lower end is pivotally attached to the bracket 34. Many such configurations are provided so that the links 35 are parallel to each other. For example, a plurality of body bodies 3 are provided in the front-rear direction and the width direction. In order to interlock the links 35 in the front-rear direction, connecting links 39A are pivotally attached to the respective links 35 in the front-rear direction, and the left-right links 35 are connected and fixed by connecting rods 39B in order to link the links 35 in the left-right direction. ing. A bracket 37 is fixed on a horizontal joist 36 fixed on the chassis, and a lifting hydraulic cylinder 38 is connected between the bracket 37 and an intermediate portion of the link 35. One hydraulic cylinder 38 is provided for one link row in the front-rear direction. Therefore, when the cylinder 38 is contracted, the elevating floor 30 is in the lowered position D in FIGS. 4 and 5, and the box-shaped widened portion 10 can be retracted. When the cylinder 38 is extended, the ring 35 is rotated in the standing direction. By moving, the elevating floor 30 is driven to the raised position U. The ascending position U is the same height as the floor portion 12 of the box-shaped widened portion 10.

  FIG. 6 shows a hydraulic circuit according to the embodiment, and a widening hydraulic cylinder 50 and a single-acting hydraulic cylinder (return spring) that are double-acting hydraulic cylinders with hydraulic oil supplied from a power unit 80 that uses a battery of the truck 1 as a power source. The built-in lift hydraulic cylinder 38 is driven by a circuit including solenoid valves 81 and 82, respectively. Then, the widening hydraulic cylinder 50 can be contracted (the box-shaped widening portion 10 is retracted) only when the lifting hydraulic cylinder 38 is contracted (the lowered position D of the lifting floor 30). The solenoid valves 81 and 82 are controlled so that the lifting hydraulic cylinder 38 can be extended (driven to the raised position U of the lifting floor 30) only when the box-shaped widening portion 10 is widened.

  The overall operation of this embodiment will be described. When traveling as a lorry 1, the widening hydraulic cylinder 50 is contracted to retract the box-shaped widening portion 10, and the side wall portion 11 closes the opening 4 on the side surface of the vehicle body 3 to be substantially flush. A box-shaped car body having a car body width is formed. At this time, the elevating floor portion 30 is lowered to the lowered position D in advance so as not to prevent the pulling-in operation of the box-shaped widened portion 10. Further, the height of the floor portion 12 of the box-shaped widened portion 10 and the floor surface of the vehicle body 3 are the same.

  When the lorry 1 is parked, when used as an exhibition car, a lodging car or the like, the widening hydraulic cylinder 50 in the widened vehicle body 2 is extended to pull out the box-shaped widened portion 10 from the outside to constitute a widened vehicle body. . Then, the raising / lowering floor part 30 is raised to the raising position U, and is made the same height as the floor part 12 of the box-shaped widened part 10.

  According to the present embodiment, the following effects can be achieved.

(1) By pulling out the box-shaped widening portion 10 from the box-shaped vehicle body 3 at the time of parking, it is possible to increase the floor area and the vehicle body volume, which can be effectively used for exhibition cars, overnight cars, and the like.

(2) If the box-shaped widened portion 10 is stored in the vehicle body 3 and the side wall 11 of the box-shaped widened portion 10 closes the opening 4 on the side surface of the vehicle body 3 and is generally flush It is possible to travel as a vehicle with a vehicle body width of.

(3) The space between the front and lower lower guide rails 7 is an elevating floor portion 30, and when the box-shaped widened portion 10 is retracted by the elevating mechanism 70, it is driven to the lowered position so as not to hit the floor portion 12. When the portion 10 is pulled out, the elevating floor portion 30 can be driven to the same height as the floor portion 12 of the box-shaped widened portion 10. For this reason, a wide floor without a step can be realized when the box-shaped widened portion 10 is pulled out, which is convenient for applications such as exhibition vehicles.

(4) By combining a single widening hydraulic cylinder 50 with a mechanism using a wire rope and a sheave, the box-shaped widened portion 10 can be slid and driven, and the drive mechanism 40 is simple and inexpensive.

  The present invention has been described above by taking the embodiment as an example. However, it is understood by those skilled in the art that various modifications can be made to each component and each processing process of the embodiment within the scope of the claims. By the way.

DESCRIPTION OF SYMBOLS 1 Lorry vehicle 2 Widening vehicle body 3 Box-shaped vehicle body 4 Opening 6 and 7 Guide rail 10 Box-shaped widening part 11 Side wall part 12 Floor part 13 Ceiling part 14 Front wall part 15 Rear wall part 16 and 17 Slider 21 and 22 Roller 30 Elevation Floor 38 Lifting hydraulic cylinder 40 Drive mechanism 41F, 41R Pulling wire rope 42F, 42R Pulling wire rope 50 Widening hydraulic cylinder 51A-51D, 52F, 52R, 53A-53D, 54, 55 Sheave 60 Substantially U-shaped Fixed frame 70 Elevating mechanism 80 Power unit 81, 82 Solenoid valve

Claims (1)

A vehicle body mounted on the chassis and having an opening on at least one side;
A box-shaped widened portion having a side wall portion, a floor portion, a ceiling portion, a front wall portion and a rear wall portion, movable laterally with respect to the vehicle body body, and the side wall portion closes the opening of the side surface when retracted;
A drive mechanism for moving the box-shaped widened portion with respect to the vehicle body;
The raising and lowering floor part on the vehicle body side that can be raised and lowered so as not to hit the floor part when the box-shaped widening part is retracted;
An elevating mechanism for elevating and driving the elevating floor part,
The box-shaped widened portion has an upper slider and a lower slider on the upper and lower sides of the front wall portion and the rear wall portion, respectively, and the upper slider and the lower slider move respectively by an upper guide rail and a lower guide rail fixed to the vehicle body. Is supported in a state where the floor portion of the box-shaped widened portion and the floor surface height of the vehicle body coincide with each other, and the lift floor portion is located between the lower guide rails,
The drive mechanism includes a horizontal frame fixedly arranged on the vehicle body along the lower side of the front and rear lower guide rails so as to surround the elevating floor, and a vertical frame that connects them. A fixed frame,
A lead wire rope of the box-shaped widened portion which is one end respectively fixed to each of the lower slider, the pull wire rope,
A sheave pivotally supported in the vicinity of the side opening in each lateral frame;
Provided in the vertical frame, and has a cylinder for pulling or feeding each wire rope;
The wire rope for drawing is adapted to be pulled by the cylinder after being wound around the sheave,
The elevating mechanism has a plurality of mutually parallel links connecting the elevating floor portion and the chassis side, and an elevating cylinder for rotating the links, and when the box-shaped widened portion is retracted, the elevating mechanism A widened vehicle body, wherein the floor portion is in a lowered position, and when the box-shaped widened portion is pulled out, the elevating floor portion has the same height as the floor portion of the box-shaped widened portion.

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