JPS59171715A - Side door full admission type freight vehicle - Google Patents

Abstract

PURPOSE:To make loading or unloading ever so easy, by attaching a wing rotatably in vertical directions to each of liftable sliding arches installed in front and rear of a freight room, while interlocking both sliding arch lifting and wing rotating motions together, and constituting them to be selectable individually. CONSTITUTION:An extension checking member 34 is attached to a strut 12, and when a cylinder 14 is set in motion, a piston rod 6 fails to do its downward extension and therefore a sliding arch 8 is made to go up instead whereby tensile force is produced in a tension member 30, and a wing 2 rotates upward, opening the side of a freight room. At this time, if a ratchet buckle 18 is made to come into a state of being unlocked, a lock of the tension member 30 is released and thereby the wing 2 is in no case opened any longer. And, when the extension checking member 34 is moved and the ratchet buckle 18 is driven by a rock cylinder 14, rotation of the wing 2 alone takes place. With this constitution, loading or unloading for freight can be simplified so facile.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a freight transport vehicle with fully open sides, and in particular, the raising and lowering of the roof and the rotation of the wings are performed in conjunction with each other,
The present invention also relates to a cargo transport vehicle that allows cargo to be loaded and unloaded extremely easily by only rotating the wings.

Conventionally, freight transport vehicles have been proposed in which the side walls of the vehicle are made into wings that can rotate in the vertical direction, and the sides can be opened when loading and unloading cargo.
Various types of caps have been disclosed in Japanese Utility Model Publication No. 2-14965, Japanese Utility Model Publication No. 54-12807, Japanese Utility Model Application Publication No. 52-59321, etc. Unfortunately, with those conventional structures, only the wings can be rotated, and the roof still maintains its original height, making it difficult to load cargo using a forklift. During unloading, the cargo gets stuck on the cross beams of the roof, making it difficult to handle the cargo effectively.Also, it is necessary to leave a large space between the cargo and the roof, which makes it difficult to carry out efficient cargo handling. This was an obstacle to transportation.

On the other hand, in Japanese Utility Model Application Publication No. 52-68508, a link mechanism with hydraulic cylinders installed on the front and rear walls of the cargo compartment is provided, and the roof is lifted and the upper part of the side wall is opened by hydraulic drive. A structure has been proposed in which the operations are performed in conjunction with each other. In this way, during cargo handling,
Although there is an advantage in that sufficient loading is possible without the ceiling being an obstacle, a hydraulic cylinder and a link mechanism are required, and the link mechanism is complicated because the roof and the upper part of the side wall are linked as separate bodies. Moreover, since the members for supporting both of them also needed to have sufficient strength, there was an inherent drawback that an increase in weight and manufacturing cost were unavoidable.

Moreover, according to such a structure, since the lifting of the roof and the opening of the upper part of the side walls are linked, there is an inherent problem that raising only the roof or opening only the upper part of the side walls cannot be carried out selectively. -ing

The present invention has been made in view of the above circumstances, and its purpose is to enable the lifting and lowering of the roof and the opening of the sides by the wings to be performed in conjunction with each other. An object of the present invention is to provide a fully-open side cargo transport vehicle which can perform the following operations as an alternative.

In order to achieve such an object, the cargo transport vehicle according to the present invention has arch parts located at the front and rear of the cargo compartment, and a connecting part that connects them and constitutes at least a part of the roof part. , a sliding arch that can be raised and lowered,
(bllsliding arch) A wing that is installed so as to be rotatable in the vertical direction, constitutes at least a side wall portion of the cargo compartment, and opens and closes at least the side portion of the cargo compartment by its rotation; (d) driving means that is extendable and retractable in the vertical direction and is attached to each leg of the arch part of the M sliding arch for raising and lowering the sliding arch and rotating the wings;
Preventing downward extension of the drive means; 1. a removable operation conversion means for converting the extension operation into an upward movement of the sliding arch; and a drum mechanism rotatably provided around the (el-axis) and for rotating the wings in the vertical direction by the rotational movement. (one end of fl is wrapped and fixed around the drum mechanism, while the other end is attached to the telescopic portion of the driving means, and the telescopic portion is extended by relative movement to the arch leg of the sliding arch. The apparatus is characterized in that it includes a tensile force transmitting member that applies a tensile force to the drum mechanism and rotates the drum mechanism.

Thus, according to the present invention, the expansion/contraction operation of the driving means is transmitted to the sliding arch and the wings via the detachable operation conversion means, and by attaching and detaching the operation conversion means, the sliding arch is changed. ” Since the second raising operation is controlled, the sliding arch can be raised, the wing can be rotated, and the wing can only be rotated (if the sliding arch is not raised)
This made it possible to selectively carry out loading and unloading of cargo extremely easily, reliably, and completely. Moreover, according to the present invention, the tensile force transmitting member for transmitting the tensile force of the driving means is wound around the drum mechanism, and the tensile force is applied to the drum mechanism. The wing can be rotated effectively, and the wing can be easily rotated, in other words, the sides can be opened easily.

Further, in the present invention, a plurality of locking portions are provided on the outer peripheral portion of the drum mechanism at appropriate intervals in the circumferential direction, and the drum mechanism is capable of being held in the locking portions by rotation. A stopper means is provided that is rotated so as to be released from engagement with the locking portion by interference of a tensile force transmitting member that applies a tensile force to the drum mechanism, and the stopper means is further rotated toward the drum mechanism. spring means for biasing the locking portion into engagement with the locking portion;
When the tensile force transmitting member loses the tensile force, the spring means engages the stopper means with the locking portion of the drum mechanism, thereby preventing rotation of the drum mechanism and causing the wing to rotate. If the rotation is stopped, the wing can be fixed at a predetermined open position, which has the advantage that cargo can be loaded and unloaded in any open position. As a safety device against downward rotation of
It ended up functioning effectively.

DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to clarify the present invention more specifically, embodiments of a fully-open side cargo transport vehicle according to the present invention will be described in detail below with reference to the drawings.

First, FIG. 1 is a perspective view from the rear of a cargo compartment formed on a cargo platform such as a trunk or trailer, where 2 covers the upper part of one side wall of the cargo compartment and also covers a part of the roof. The left and right wings 2, 2 are attached to a beam 4, which is a beam member provided in the front-rear direction at the center of the roof, as appropriate, such as a hinge. It is mounted so as to be rotatable in the vertical direction. Also, the front and rear ends of this beam 4 are
As shown in FIG. 2, it is fixed to the arch portion 6 of the portal frame, and constitutes a sliding arch 8 as a whole. The arch portion 6 of this sliding arch 8
The legs 10 are slidably fitted into hollow rectangular pillars 12 erected at the four corners of the loading platform, and the sliding arch 8 is supported so as to be movable up and down in the vertical direction. .

Furthermore, a cylinder 14 is attached to the lower part of the leg part 10 of the arch part 6 of the sliding arch 8, as shown in FIG.
A known ratchet buckle 18 is attached to the tip of the extensible piston port 16.

As shown in FIGS. 2 and 3, when attaching the wing 2 to the beam 4, the fan-shaped drum 20 is fixedly attached to the example part, while the arch part of the sliding arch 8 is attached to the beam 4. Yagura 22 is provided on each shoulder of 6,
A pulley 24 is rotatably disposed there. and,
A tension member 30 as a tensile force transmitting member, which is formed by connecting the wire 26 and the heald 28, is locked to the drum 20 by a pin 32 at the end of the wire 26 and is wound around the drum 20. &J, while the end of the belt 28 is detachably attached to the ratchet buckle 18. Further, an extension preventing member 34 as an operation switching means is disposed removably and fixedly positioned with respect to the column 12 so as to be located below the ratchet 1-handle 18. Screw 1
- When the extension rod 16 is fully extended, the sliding arch 8 is configured to be moved upward by preventing its downward extension.

The wing 2 adopts a known structure such as a canopy sheet or a panel. For example, in the case of a canopy sheeting structure, the wing frame is covered with both sides of the cargo compartment and the roof. The hood sheet is hung in this way, and the lower end of the side is fixed to, for example, the side flap 36 shown in FIG. 1. In Fig. 1, numeral 38 is the tilt flap installed at the rear of the cargo compartment.

Therefore, in a freight transport vehicle having a cargo compartment having such a structure, the cylinders 14 provided on the leg portions 10 of the arch portion 6 of the sliding arch 8 change from the state where the cargo compartment is covered by the wing 2 shown in FIG. By activating this, various side opening configurations as shown in FIGS. 5 to 9 can be taken.

That is, when the extension preventing member 34 is attached to the support column 12 to prevent the downward extension of the piston rod 16 of the cylinder 14, as shown in FIG. 8, and the tension member 30
In this case, a tensile force is generated by the upward movement of the sliding arch 8, and the drum 20 is rotated with respect to the beam 4, which causes the wing 2 to rotate in one direction, thereby opening the side of the cargo compartment. It opens up. In other words, the wing 2 can be opened at the same time as the sliding arch 8 (roof member) is raised.

Further, the extension preventing member 34 is attached to the support column 12 to prevent the downward extension of the piston rod I6 of the cylinder 14, while the ratchet buckle 18 held at the tip of the piston rod 16 is in the unlocked state. and
When the heald 28 end of the tensioning member 30 is opened, in other words, even if the cylinder 14 is actuated and the sliding arch 8 is raised, no tensile force is generated in the tensioning member 30. Wing 2 as shown in the figure
The opening of the sliding arch 8 can be opened, and only the sliding arch 8 can be raised.

Furthermore, in the case where only the wing 2 is to be opened without raising the sliding arch 8, the seventh
As shown in the figure, the extension blocking member 34, which is attached to the column 12 and prevents the piston rod 16 from extending downward, is removed. By removing the extension blocking member 34, the piston rod 16 extends downward due to the drive of the cylinder 14, and this downward extension generates a tensile force on the tension member 30 fixed to the ratchet buckle 18. drum 2
By rotating the wing 2, the wing 2 can be rotated upward to open the side of the cargo compartment.

In addition, the operation mode so far has been the operation mode of the wing 2 by the cylinder 10 provided on each leg lO of the arch section 6 provided at the front and rear of the cargo compartment (locking or opening of the tension member 30 by the ratchet buckle 18). Although the movement of the two left and right wings 2 was made the same by making the shapes and the presence or absence of attachment of the extension prevention member 34 to the support column 12 the same, it is also possible to simply open and close only one wing 2. Yes, there is an example of that in Figure 8.

It is shown in FIG.

That is, FIG. 8 shows a combination of the operation mode shown in FIG. 5 and the operation mode shown in FIG. The sliding arch 8 is configured to move upwardly, and one tension member 30 is locked to the ratchet buckle 18 while the other tension member 30 is unlocked from the ratchet buckle 18. Sliding arch 8
As the wing 2 rises, a tensile force is generated in one tension member 32 and no tension is generated in the other tension member 30, so that one wing 2 is released as shown in the figure. be.

Further, in FIG. 9, the extension preventing member 34 on the side where the cylinder 14 is actuated is removed, and only the cylinder 14 on one side is driven, so that the tension member 30 is pulled through the ratchet knob 18. A force is generated to open only one wing 2. At this time, the other cylinder 10 is not driven at all, and the sliding arch 8
will never rise. This configuration is a combination of the configuration in which the cylinder lO is not activated in FIG. 4 and the wing open configuration in FIG. 7.

In this way, by adopting the structure shown in FIGS. 1 to 3, it is possible to take various forms in which the raising operation of the sliding arch 8 (roof) and the opening operation of the wing 2 are combined in various ways. This makes it possible to appropriately select the open form of the wing 2 depending on the surrounding situation, without being restricted to the cargo handling area.
This made it easier to load and unload cargo.

Also, according to the upper structure, the wire 26 of the tension member 30
Since the part is wrapped around the outer circumference of the drum 20 and its tip is fixed, the tensile force of the tension member 30 caused by the extension operation of the cylinder 10 exerts an effective rotational action on the drum 20. This has the advantage that the upward rotation of the wing 2 becomes easy and the opening operation becomes smooth.

Also, the effect of Wing 2 on Beam 4 like this.
A rotation mechanism for the wing 2 provided in the first
0 and 11, there are protrusions 40 of a predetermined length at predetermined intervals on the circular outer surface of the outer circumferential portion of the drum 20 in the radial direction of the fan shape. A predetermined stopper member 42 is rotatably attached to the dowel 22 provided on the arch portion 6 of the sliding arch 8 so as to extend.

A spring 44 is stretched between the tip of the stopper member 42 and the beam 4.
2 to the drum 20 side, the wire 26 of the tension member 30 comes into contact with the bottle part 46 provided at the tip of the stopper member 42 and interferes with it.
When a tensile force is applied to the tension member 3°, the drum 2o
It is configured to rotate so as to move away from the spring 44 against the biasing force of the spring 44.

Therefore, in such a rotation mechanism, the tension member 30
When a tensile force is applied to tension the wire 26, an effective rotational motion is induced on the drum 20, causing the wing 2 to rotate relative to the beam 4 by the hinge 48, as shown in FIG. The situation will be like this. At this time, the pin portion 46 at the tip of the stopper member 42 is rotated in a direction away from the drum 20 due to the interference of the wire 26 against the biasing force of the spring 44, and the outer periphery of the drum 2o is rotated. Therefore, no engagement between the protrusion 40 and the stopper member 42 is caused.

However, when the wing 2 is rotated to open the side of the cargo compartment as shown in FIG. When the spring 44 no longer has enough tensile force to overcome the force A, the stopper member 42 is rotated toward the tram 20 in response to the downward rotation of the wing 2, and the The tip end engages with one of the protrusions 40 provided on the outer periphery of the drum 20, so that rotation of the tram 20 is prevented by the stopper member 42, as shown in FIG. This prevents the wing 2 from rotating.

In this way, a plurality of protrusions (locking parts) 40 are provided on the outer circumference of the drum 20 at appropriate intervals in the circumferential direction, and when the tension member 30 is no longer subjected to tensile force, the protrusions 40 are By providing the engageable stopper portion 1fA'42, it is possible to prevent the wing 2 from suddenly pivoting downward due to some accident when the wing 2 is in the open state and the tensile force is no longer applied to the tension member 30. This makes it possible to effectively prevent accidents caused by this, and thus it can be advantageously employed as a safety device when the wing 2 is opened. Further, since such a stopper member 42 can engage with any of the plurality of projections 40, by selecting the position of the projection 40 to be engaged, the amount of rotation of the drum 20, in other words, the opening of the wing 2 can be controlled. Since the amount can be regulated, it can also be used as a means for regulating the extent to which the wing 2 opens the side of the cargo compartment. In order to engage the stopper member 42 and the protrusion 40 at such an arbitrary position, the tensile force applied to the tension member 30 must be reduced or eliminated (the hinge 48 due to the weight of the wing 2
An operation to temporarily prevent (lift) the rotation by appropriate means will be adopted.

In addition, in the structure of the above example, the drum 20 is connected to the wing 2.
However, the present invention is not limited to this in any way, and even if a drum mechanism that is not fixed to the wing 2 is used to apply rotational force to the wing 2. An example of this is shown in FIG. 14. That is, in FIG. 14, a rotating member 50 is rotatably attached to the beam 4 at one end via a hinge 52 so as to be located below the wing 2. A drum 20 similar to the previous example is fixed to the lower part of the moving member 50. Further, a fan wheel 54 is rotatably provided at the other end of the rotary member 50, and this pulley 54 is in contact with the lower surface of the wing 2. Therefore, a tensile force is applied to the wire 26 of the tensioning member 30 to rotate the drum 20, and the rotational member 50 is moved to the hinge 52.
When the wing 2 is rotated in the rotational direction, the wing 2
The wing 2 is pushed up by the pulley 54 at the other end of the wing 2, which causes the wing 2 to rotate around the hinge 48, thereby opening the side of the cargo compartment.

Further, FIG. 15 shows another example of a drum used as a drum mechanism in the present invention and a locking portion provided on the outer periphery thereof. At this point, a plurality of notches 58, which are different from the plurality of protrusions 40 as in the previous example, are provided on the outer circumference of the drum 56 as a drum mechanism, and the pin portion of the stopper member 42 is connected to the notches 58. 46, the rotation of the drum 56 and, by extension, the rotation of the wing 2 are prevented.

Furthermore, in the above example, with respect to the beam 4 located in the front-rear direction at approximately the center of the top of the sliding arch 8,
The left and right wings 2 are rotatably attached, but instead of this, it is also possible to make the beam 4 wider and reduce the portion that constitutes the roof of each wing 2. On the other hand, as in the above example, instead of the beam 4 member forming a part of the roof, only the rotation axis for rotating the wing 2 is attached to the arch section 6 located at the front and rear of the cargo compartment. It is also possible to construct the roof in such a way that the hook extends in both directions and only the pivot axis on which it hangs becomes part of the roof.

In addition, it goes without saying that various modifications and improvements may be made to the present invention according to the knowledge of those skilled in the art without departing from the spirit thereof.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an example of a cargo compartment of a fully-open side cargo transport vehicle according to the present invention, and FIG. 2 is a perspective explanatory view showing a rotating mechanism of a wing provided at the rear end. , 3rd
The figure is a half-sectional explanatory view of the part where the arch part of the sliding arch is located, and FIGS. 4 to 9 are cross-sectional explanatory views showing different operating forms of the wing and the sliding arch, respectively. Figure 4 shows the wing closed and the sliding arch lowered. Figure 5 shows the wing opened and the sliding arch raised. Figure 6 shows the sliding arch only raised. Figure 7 shows the wing. 8 is a diagram showing the sliding arch rising and only one wing is open, FIG. 9 is a diagram showing the opening of only one wing, and FIG. 10 is a diagram showing the opening of only one wing. 11 is a diagram corresponding to FIG. 3 showing an enlarged view of the wing rotation part of the freight transport vehicle, FIG. 11 is a schematic plan cross-sectional view thereof, and FIG. 12 is a diagram corresponding to FIG. 13th
The figure corresponds to FIG. 10, showing a state in which the wing is prevented from rotating downward by the stopper member, and FIG. 14 shows another example of the mounting form of the drum. This is a diagram corresponding to FIG. 10, and FIG. 15 is a diagram corresponding to FIG. 10 showing another example of a locking portion provided on the drum. 2: Wing 4: Beam (Liangbe Li) 6: Arch part
8 Nisliding arch 10: Legs
12: Prop 14 Niji cylinder 16: Piston condo 18: Rachie Sotoba Sokuru 20 Ni drum 26 Two wires
28: Helt 30: Tension member 32: Bin 34: Extension prevention member 40: Protrusion 42: Stopper member 44 Spring 48.52
: Hinge 50: Rotating part Applicant: Japan Trailmobile Co., Ltd. Figure 1 Figure 5 Figure 7

Claims (4)

[Claims] (1) A sliding arch that can be raised and lowered and has arch parts located at the front and rear of the cargo compartment and a connecting part that connects them and constitutes at least a part of the roof part, and a sliding arch that can be rotated in the vertical direction. being removable and forming at least a side wall portion of the cargo compartment;
A wing that opens and closes at least a side portion of the cargo compartment by its rotation, and a wing that is attached to each leg of the arch portion of the sliding arch, and that raises and lowers the sliding arch and rotates the wing. For 1.
a drive means that is extendable and retractable in the vertical direction; a removable action conversion means that prevents the drive means from extending downward and converts the extension action into a J-2 raising action of the sliding arch; a drum mechanism that is rotatably provided and that rotates the wing in the vertical direction by the rotational movement; one end is wrapped around and fixed to the drum mechanism, and the other end is attached to the telescopic portion of the drive means; and a tensile force transmitting member attached thereto, which applies a tensile force to the drum mechanism by a relative extension operation of the telescoping portion with respect to the arch leg of the sliding arch, thereby causing the drum mechanism to rotate. A cargo transport vehicle with fully open sides. (2) The drum mechanism is a fan-shaped drum fixed to a portion of the wing on the sliding arch attachment side, and the rotational axis of the drum is aligned with the rotational axis of the wing. A freight transport vehicle according to claim 1. (3) A plurality of locking portions are provided on the outer periphery of the drum mechanism at appropriate intervals in the circumferential direction, and the locking portions can be engaged with the locking portions by rotation and a tensile force is applied to the drum mechanism. A stopper means is provided that is rotated so as to be released from engagement with the locking portion by interference of a tensile force transmitting member that is attached to the locking portion, and further, the stopper means is rotated toward the drum mechanism, and the stopper means is rotated toward the drum mechanism so that the locking portion is By providing a spring means for urging the stopper means to engage with the locking portion of the drum mechanism, when the tensile force transmitting member loses the tensile force, the spring means engages the stopper means with the locking portion of the drum mechanism. 3. The freight transport vehicle according to claim 1, wherein rotation of the wing is stopped by preventing rotation of the drum mechanism. (4) The freight transport vehicle according to any one of claims 1 to 3, wherein the tensile force transmitting member is detachably attached to the extendable portion of the drive means.