JP2013010420A - Synchronous drive in widened part in widened vehicle and self retaining device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a synchronous drive of a widened part and a self retaining device in a widened vehicle which always maintains the body main part and the widened part in horizontal, can retain a constant attitude without installing the jack, and also has superior weather flashing, in which the widened part does not hang down even if parking on the ground where the vehicle body inclines, furthermore storing and widening in the widened part can be always performed smoothly.SOLUTION: It is set that the rotation power generated by electric motor 24 is converted into the power of the linear direction, the driving force in the linear direction is synchronized with the corner in the widened part 20 and transmitted, and the widened part 20 is moved from the location from the storing position to the widening position or from the widening position to the storing location.

Description

  TECHNICAL FIELD The present invention relates to a synchronous drive and a self-holding device for a widened portion in a widened vehicle. The present invention relates to a synchronous drive and a self-holding device.

For example, a specially equipped vehicle 2 as shown in FIG. 7 may be dispatched in an area that has been hit by a disaster such as an earthquake because a facility for sleeping rescue workers is required.
Such a specially equipped vehicle 2 (hereinafter referred to as a support vehicle 2) originally has a large space inside the vehicle body. However, in order to further expand the space, the vehicle has a widened portion 4 that can be expanded and contracted on the side surface of the vehicle body. ing. In such a support vehicle 2, as a rain ending when the widened portion 4 is widened laterally from the body main body 6, the entire contact portion between the body main body 6 and the widened portion 4 is covered with FIG. As shown in A) and (B), a rubber weather strip 12 is interposed.

  In this weather strip 12, it is essential that the widened portion 4 is always subjected to constant compression in millimeters with respect to the main body. If the weather strip 12 is not always compressed with a certain accuracy of millimeters, it may cause water leakage, intrusion of radioactive materials and air gaps, and destruction of this mechanism.

  By the way, after such a conventional support vehicle 2 arrives at the disaster area, first, the hydraulic cylinder jack 8 provided on the frame of the body main body 6 is extended, and the self-body 6 is moved by using a level or a level. Adjust horizontally.

  Subsequently, after projecting the widened portion 4, as shown in FIG. 8A, the lower surface of the widened body 4 is supported by a portable jack A and adjusted horizontally with a leveling device, a level gauge, etc. Thus, the widened portion 4 is prevented from drooping and the weather strip 12 is evenly compressed.

  However, the work of installing a plurality of jacks 8 on the lower surface of the widened portion 4 is laborious because it is necessary to match the horizontality of the widened portion 4, and even if it is performed by two adults, it takes about 30 minutes. It will take.

  Moreover, as shown to FIG. 8 (B), after installing the jack A in the lower surface of the wide part 4, the ground may become muddy. Also, for a long period of time, a jack often sinks even when a person moves indoors. In such a case, the widened portion 4 is inclined again.

  As described above, when the posture is tilted after the widened portion 4 is protruded, the widened portion 4 cannot move smoothly even if the widened portion 4 is moved in the horizontal direction. Then, the weather strip 12 may be damaged, and the widened portion 4 cannot be stored in the body main body 6.

  Therefore, in relief activities that are prolonged, in order to prevent drooping and to keep the weather strip 12 evenly compressed, the level of the body main body 6 and the widened body 4 is always adjusted with the level of the jack 8 and jack A. Must be maintained.

Thus, the problem that the widened portion 4 is inclined and the smooth movement of the widened portion 4 becomes difficult is remarkable in the case of a vehicle equipped with an air suspension.
For example, in such a vehicle, if the engine is erroneously started after the widened portion 4 is protruded in the width direction in a state where air is removed from the suspension, the body main body 6 first rises. Then, the jack 8 on the body main body 6 side is in a floating state. Along with this, the widened portion 4 protruding from the main body 6 is also lifted, and as a result, the widened portion 4 is inclined and the weather strip mounting portion is damaged.

  On the other hand, if the jack 8 on the body body 6 side is set without removing air from the suspension and then the air is removed, the vehicle body falls, the weight of the vehicle body acts on the jack 8 on the body body 6 side, and the jack 8 on the body side sinks. It will be crowded.

  In such a case, it is necessary for the operator to adjust the posture of the widened portion 4 to the horizontal state by operating the jack 8, but the posture adjustment while raising and lowering the jack 8 is performed by a woman alone. It is extremely difficult.

  Moreover, in the support vehicle 2 provided with such a conventional widened portion 4, the widened portion 4 is widened or stored by the hydraulic cylinder boom 10 provided on the side of the vehicle body. A slight difference is likely to occur in the movement speed. In that case, the extended width of the widened portion 4 is not constant on the left and right, and the widened portion 4 cannot be smoothly widened and stored. Even if widening and storage are possible, the weatherstrip 12 is not compressed uniformly, the intrusion of rain and dust does not escape, and it may cause abnormal noise.

  Furthermore, in the support vehicle 2 provided with the conventional widening part, it is necessary to provide a hydraulic cylinder and the boom 10, and the installation place must be ensured under the widening part 4, and a vehicle body weight increases. High cost. Moreover, since it is necessary to provide the boom 10 under the wide part 4, the wide part 4 had to be set to a high position, and there existed a problem that a gravity center position will become upper as a result.

  In view of such circumstances, the present invention always maintains the level of the main body and the widened body without having to support the widened body with a jack, has good rain performance, has a compact structure, and additionally has a center of gravity position. An object of the present invention is to provide a self-holding device and a synchronous drive of a widened portion in a widened vehicle that can be set low.

To achieve the above object, the present invention provides:
In a vehicle with a widened portion on the side of the body body,
A motor for generating rotational power for moving the widened portion;
Force transmission means for transmitting rotational power generated by the motor to the lower left and right of the widened portion;
Force converting means for converting the rotational driving force transmitted from the force transmitting means into a linear force;
Means for rotating the sprocket at the corner of the widened portion in the same direction as the movement to move in the linear direction;
Means for moving the same rotating sprocket by the same distance;
With
Rotational power generated by the motor is transmitted to the lower left and right of the widened portion by the force transmitting means, and the rotational driving force transmitted to the lower left and right is converted into a linear force by the force converting means, and the widened It is characterized in that the widened portion is set to move from the storage position to the widening position or from the widening position to the storage position by inputting force from the four corners of the part.

  With such a configuration, since the widened portion always moves in synchronization, there is no possibility that the widened portion tilts or hangs down during the movement. In addition, since it is not necessary to use a jack, no laborious action is required, and the operation can be performed only with the operation buttons.

Here, in the present invention, it is preferable that a pair of chains wound around a sprocket is adopted as the force transmission means.
By adopting a pair of chains in this way, it is possible to transmit the rotational force simultaneously to both ends in the left-right direction regardless of the size of the widened portion.

Furthermore, in the present invention, it is preferable that a 30 ° trapezoidal screw is employed for the force conversion means.
With such a configuration, the rotational driving force can be easily converted into a linear force.

  According to the synchronous drive of the widened portion and the self-holding device in the widened vehicle according to the present invention, since the force in the linear direction is simultaneously output to the widened portion, the extended width of the widened portion is always constant, thereby the widened portion. The same posture can be maintained during movement. Furthermore, even when the vehicle is parked in a widened state or in a muddy state, only the widened portion is not inclined. In addition, since no jack is installed below the widened portion, a labor-intensive operation such as adjusting the tilt angle by operating the jack alone when tilted as in the past becomes unnecessary.

  Furthermore, since the structure is easy, maintenance is easy and weight reduction can be promoted. Furthermore, since a hydraulic cylinder and a boom are not used, the cost is low. Further, since it is not necessary to provide a hydraulic cylinder below the widened portion, the position of the center of gravity can be kept low.

  In addition, since a jack is not required in the widened part, the engine is started and stopped while the air suspension car is widened, which causes damage to the weatherstrip etc. even if the vehicle height changes midway There is nothing. For the same reason, it can also be used in places where there are obstacles such as swamps, ponds, and rubble under the widening section.

FIG. 1 is a schematic perspective view of a widened portion of a support vehicle provided with a synchronous drive of a widened portion and a self-holding device according to an embodiment of the present invention. FIG. 2 is a perspective view showing the periphery of the motor shown in FIG. 3 is a perspective view of the vicinity of the corner A and the corner E of the widened portion shown in FIG. 4A is a side view showing a main part of a shaft (30 ° trapezoidal screw) arranged at the corner A shown in FIGS. 1 and 3, and FIG. 4B is a nut screwed to the shaft. It is a perspective view which shows the structure for making non-rotatable. FIG. 5 is a perspective view of the vicinity of the corner portion D and the corner portion H of the widened portion shown in FIG. FIG. 6 is a side view showing an outline of a power system arranged on the right side surface of the widened portion shown in FIG. FIG. 7 is a perspective view showing an example of a vehicle having a conventional widened portion. FIG. 8 (A) is a schematic view when a conventional support vehicle with a widened portion protruding is viewed from the front-rear direction, and FIG. 8 (B) is a schematic view when a jack holding the widened portion is fitted in a muddy state. is there. FIG. 9A and FIG. 9B are schematic views showing when a malfunction occurs in a vehicle equipped with an air suspension.

Hereinafter, preferred embodiments of the present invention will be described with reference to the embodiments shown in the drawings.
FIG. 1 shows a widened portion of a support vehicle equipped with a synchronous drive of a widened portion and a self-holding device according to an embodiment of the present invention with a peripheral face material removed.

  The widened portion 20 is configured in a rectangular frame shape by a plurality of angle members 22 and the like. And the synchronous drive and self-holding device of the wide part which concerns on this invention are comprised by the body main body side periphery of the four corners of this frame. In this embodiment, the widened portion 20 is widened or stored from the body main body 6 by the synchronous driving of the widened portion and the self-holding device, as in the case of the support vehicle 2 shown in FIG.

  In the following description, in the widened portion 20 of FIG. 1, the arrow X direction in FIG. 1 is the direction in which the widened portion 20 is stored, and the arrow Y direction is the direction in which the widened portion 20 is widened. In the following description, in describing the structure of the widened portion 20, each corner of the frame, which is the basic configuration of the widened portion 20, is illustrated as A, B, C, D, E, F, G, H, the surface surrounded by ABCD is the “rear surface” of the widened portion 20, the surface surrounded by EFGH is the “front surface” of the widened portion 20, and the surface surrounded by BCGF is the “left side” when viewed from the widening chamber side. A surface surrounded by ADHE will be described as a “right side surface”.

A motor 24 for generating a rotational driving force is disposed below the rear surface of the widened portion 20.
In this embodiment, the rotational driving force of the single motor 24 is transmitted to the corners A and B and transmitted to the corners A and B by a force transmission means 30 having a chain, a shaft and the like as will be described later. The rotational driving force thus converted is converted into a linear force at the corners A and B. Then, the force converted in the linear direction acts on the widened portion 20 simultaneously from all the corners A, B, C, and D. All of these force transmissions are synchronized.

  Thus, the widened portion 20 receives the same force from all four corners and moves simultaneously in the same direction. In addition, since the widened portion 20 is supported by the entire vehicle body, the posture is always stable even during the movement of the widened portion, even when the vehicle is installed in a muddy state.

  In this embodiment, the motor 24, the force transmission means 30 for transmitting the rotational power generated by the motor 24 to the lower left and right of the widened portion, and the force for converting the rotational driving force transmitted from the force transmission means into a linear force. Conversion means 60.

  In this embodiment, as shown in FIG. 2, two sprockets 25 (one not shown) are arranged in parallel on the rotating shaft of the motor 24, and each of the sprockets 25 has chains 26 and 28. It is being handed over. Since the mechanisms related to force transmission including these chains 26 and 28 are similarly configured in the left-right direction with the motor 24 as the center, in the following description, a path transmitted from the chain 28 extending to the right side will be described. An example will be described. And the structure of the path | route on the opposite side attaches the same code | symbol, and abbreviate | omits detailed description.

  As shown in FIG. 3, a sprocket 29 is disposed at the corner portion A, and a chain 28 extending from the motor 24 is stretched over the sprocket 29. A sprocket 32 that is paired with the sprocket 29 is disposed at a position slightly lower than the sprocket 29, and a connecting chain 34 is stretched between the sprocket 29 and the sprocket 32.

  The chains 44 and 54 extending to the corners A and E and the corners D and H shown in FIGS. 1 and 3 are present at this position, but are not fixed to the widened portion 20 but to the body main body side. Is. Further, the sprocket 29 shown in FIG. 3 can be fixed while being shifted obliquely to the upper right so that the tension of the chain 28 and the chain 34 can be adjusted simultaneously.

  The lower sprocket 32 is fixed to the end portion of the shaft 35 extending along the directions of the corners A and E. When the sprocket 32 is driven by receiving a rotational force from the connecting chain 34, the shaft 35 is also driven. Rotate. The shaft 35 is called a 30 ° trapezoidal screw. As shown in FIGS. 4 (A) and 4 (B), the shaft 35 is rotated in the rotational direction by a combination of the shaft 35 and a nut 36 screwed to the shaft 35. Force is converted in a straight direction. The nut 36 is provided with a pair of pins 37 and 37 protruding therefrom. And the rotation of the nut 36 is regulated by mounting the locking member 39 having a substantially U-shaped cross section so as to sandwich the pins 37, 37 from the outside.

  By restricting the rotation of the nut 36, for example, when the shaft 35 rotates in the direction of arrow J in FIG. 4B, the nut 36 moves in the direction of arrow Z. As a result, the plate 42 provided integrally with the locking member 39 also moves in the arrow Z direction. That is, the widened portion 20 moves in the arrow Z direction.

  As shown in FIG. 3, the plate 42 also serves as a support member for supporting an angle member or the like formed on the upper portion thereof. The plate 42 is fixed to the lower surface of the horizontal plate 43 passed between the corners A and B by bolts.

  In this embodiment, the shafts 35 called 30 ° trapezoidal screws are arranged in the corners A and B in the horizontal direction in this way, so that the rotational driving force of the motor 24 is converted to a linear force at these two locations. Can be converted.

On the other hand, in the present embodiment, the two chains 44 are fixed to the side face on the body main body side in which the widened portion 20 is stored at a predetermined interval.
As shown in FIG. 6, the two chains 44 fixed to the body main body side are fixed at both ends by the bracket 11 or the like and do not move by themselves.

Note that the two chains 54 described later shown in FIG. 6 do not move by themselves.
The chain 44 is used as a rotation trajectory of a sprocket 46 arranged on the upper portion thereof. The sprocket 46 is rotatably supported by a support bracket 47 installed on the horizontal plate 43 shown in FIG.

  Further, in the support bracket 47, end portions of the shaft 48 arranged in the corners A and B directions are arranged, and the sprocket 46 arranged on the two chains 44 is integrally fixed to the shaft 48. Has been.

  Therefore, when the shaft 35 (30 ° trapezoidal screw) rotates in the arrow J direction in FIG. 4, the nut 36, the locking member 39, and the horizontal plate 43 move together in the arrow Z direction. As a result, the sprocket 46 also moves in the Z direction with the chain 44 as a track. In addition, the horizontal shaft 48 arranged in the corners A and B directions rotates in the direction of arrow K in FIG. 3 by the rotational force of the sprocket 46.

  On the other hand, a sprocket 49 is fixed to the end of the horizontal shaft 48 on the corner A side. The sprocket 49 transmits the rotational force to the upper sprocket 51 via the chain 50. That is, as shown in FIG. 5, since the sprocket 51 is also arranged at the corner D and the chain 50 is spanned between the sprockets 49 and 51, the rotational force is transmitted to the corners A and D. .

  Similarly to the case of the sprocket 49 at the corner A, the sprocket 51 is also fixed to a horizontal shaft 53 disposed between the corners C and D. Further, a sprocket 55 is disposed further outside the sprocket 51. Under the sprocket 55, as shown in FIG. 6, two chains 54 each having both ends fixed to the bracket 11 are arranged. This chain 54, like the lower chain 44, does not move itself. It is used as the rotation trajectory of the sprocket 55 arranged on the upper part.

  A turnbuckle is interposed in the middle of the horizontal axis 48 between the corners A and B and the horizontal axis 53 between the corners C and D, and the turnbuckle causes the entire length of the shaft 48 to be interposed. Has been made adjustable.

The synchronous drive and self-holding device of the widened portion 20 according to the present embodiment is generally configured as described above.
The force transmission means 30 for transmitting the rotational power generated by the motor 24 to the corners A, B, C, D is hung from the motor 24 to the corners A, B as shown in FIG. A pair of chains 26 and 28 and a pair of chains 50 and 50 spanned between the corner portions A and D and the corner portions B and C are formed. The force conversion means 60 for converting the rotational driving force generated by the motor 24 into a linear force is composed of a 30 ° trapezoidal screw (shaft 35), a nut 36, and the like.

The operation of the synchronous driving of the widened portion and the operation of the self-holding device in the widened vehicle of the present embodiment configured as described above will be described. In this case as well, the description will be made mainly using the right side as an example.
Now, the widened portion 20 is in a state of being stored in the body main body 6.

  In order to move the widened portion 20 from this state in the direction of the arrow Y in FIG. 1 to widen it from the body main body 6, first, the motor 24 is started by operating a push button switch provided in an operation box or the like. Although the motor 24 can rotate forward and backward, the motor rotation direction when the widened portion 20 is widened is counterclockwise in FIG. The rotational driving force of the motor 24 is transmitted in the width direction by the pair of chains 26 and 28.

  Then, the rotational force is transmitted to the right sprocket 29 via the chain 28, and further the rotational force is transmitted to the lower sprocket 32 via the chain 34. When this sprocket 32 rotates in the arrow J direction in FIGS. 3 and 4B, the nut 36 screwed to the 30 ° trapezoidal screw (shaft 35) moves in the arrow Z direction.

  On the other hand, when the sprocket 32 rotates in this way, the sprocket 46 also rotates. Then, the rotational force of the sprocket 46 is transmitted to the sprocket 49 positioned inward via the shaft 48, and then transmitted to the vertical chain 50, and is transmitted to the sprocket 55 at the corner D via this chain 50. Is done. When this rotational driving force is output to the upper sprocket 55, the sprocket 55 moves in the Z direction in FIG. These forces are transmitted simultaneously through a chain, a sprocket, a shaft, and the like. Therefore, at the corners A, B, C, and D of the widened portion 20, the force is simultaneously received and moved in the horizontal direction (Y direction in FIG. 1 and Z direction in FIG. 6).

  That is, the widened portion 20 simultaneously receives a linear force at the corners A and D (corner portions B and C) and moves in the arrow Z direction as shown in FIG. In this movement, in the present invention, since the sprockets 46 and 55 of the widened portion 20 move while being firmly bitten and held by the chains 44 and 54 of the frame portion on the vehicle body side, the conventional hydraulic cylinder and arm 10 are used. It doesn't shift at a certain part like the case where it makes it protrude. Therefore, unlike the conventional boom type, since it is always synchronized, the widened portion 20 does not hang down.

  As described above, since the movement of the widened portion 20 according to the present embodiment in the linear direction is all synchronized, it does not bend and move. Moreover, it does not tilt in a protruding state. The force transmission is the same in the movement when the widened portion 20 is stored from the widened state. Therefore, in this case as well, smooth movement can be ensured.

As mentioned above, although one Example of this invention was described, this invention is not limited to the said Example at all.
For example, in the above-described embodiment, a specially-equipped vehicle called a support vehicle has been described. However, the present invention can be effectively applied to, for example, a television relay vehicle, a measurement vehicle such as a radio wave, and of course applicable to a camper. It is.

4 Widening part 6 Body body 11 Bracket 20 Widening part 22 Angle material 24 Motor 25 Sprocket 26, 28 Chain 29 Sprocket 30 Force transmission means 32 Sprocket 34 Connection chain 35 Shaft (30 ° trapezoidal screw)
36 Nut 39 Locking member 42 Plate 43 Horizontal flat plate 44 Chain 46 Sprocket 47 Support bracket 48 Shaft 49 Sprocket 50 Chain 54 Chain 51, 55 Sprocket 53 Shaft 60 Force conversion means

Claims (3)

In a vehicle with a widened portion on the side of the body body,
A motor for generating rotational power for moving the widened portion;
Force transmission means for transmitting rotational power generated by the motor to the lower left and right of the widened portion;
Force converting means for converting the rotational driving force transmitted from the force transmitting means into a linear force;
Means for rotating the sprocket at the corner of the widened portion in the same direction as the movement to move in the linear direction;
Means for moving the same rotating sprocket by the same distance;
With
Rotational power generated by the motor is transmitted to the lower left and right of the widened portion by the force transmitting means, and the rotational driving force transmitted to the lower left and right is converted into a linear force by the force converting means, and the widened The widening portion of the widening vehicle is driven in synchronism with the self-driving of the widening vehicle, wherein the widening portion is set to move from the storage position to the widening position or from the widening position to the storage position by inputting force from the four corners Holding device.   The synchronous drive and the self-holding device of the widened part in the widened vehicle according to claim 1, wherein the force transmitting means employs a chain wound around a sprocket.   The synchronous drive and the self-holding device of the widened portion in the widened vehicle according to claim 1, wherein a 30 ° trapezoidal screw is adopted as the force converting means.

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