JP2704366B2 - Cover hood for trucks - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hood device for a carrier such as a truck. More particularly, the present invention relates to a hood device for protecting a load on a truck or the like, that is, a truck, a trailer, or a carrier of an industrial trolley from rain and sunshine.

[0002]

2. Description of the Related Art Manually loading and unloading a sheet on a cargo bed of a truck is labor intensive, and it is dangerous to work at a high place. Many trucks that do not work are used. FIG. 19 shows a side open vehicle which is a kind of such a truck. In this truck, a side plate 51 having an L-shaped cross section is rotatably supported by a support shaft mounted on the upper surface of the loading platform. During loading and unloading, the side plate 51 is flipped upward as shown in the drawing, and a load is taken in and out from the side of the loading platform. Like that. In this open-sided vehicle, it is convenient for side cargo handling using a forklift or the like, but the upper cargo handling for loading and unloading cargo from above using a crane or the like is performed by the side plate 51.
There is a problem that can not be in the way. FIG. 20 shows an accordion-type hood device.
Is folded at the front end. However, even in the folded state as shown in the figure, the front of the loading platform 53 is covered with a folded hood, and the upper surface of the loading platform 53 cannot be fully opened.

[0003]

SUMMARY OF THE INVENTION In view of the above circumstances, the present invention allows the upper surface of the loading platform to be fully open so that the upper cargo can be easily handled, and also allows the side cargo handling, and furthermore, the opening and closing operation of the seat can be easily performed. An object of the present invention is to provide a hood device for a carrier such as a truck.

[0004]

According to a first aspect of the present invention, there is provided a hood device for a loading platform, comprising: an inverted U-shaped front guide rail having the same width as a loading platform erected at a front end of a loading platform such as a truck; A reverse U-shaped rear guide rail having the same width as the width of the loading platform erected on the part, and is bridged between the front guide rail and the rear guide rail, and guided by both the guide rails, to one side of the loading platform. A plurality of sheet support beams movable between the other side and a plurality of sheet support beams in a state where the plurality of sheet support beams are separated at substantially equal intervals, and both side edges and an intermediate position are fixed respectively. A seat for covering the loading platform, a driving cable connected to one sheet support beam furthest from one side of the loading platform, and circulating along the guide rails; and circulating the driving cable in both forward and reverse directions. A driving device to be turned ,
Connect the seat support beams to the leg on one side of both guide rails (sun
(Each side of the bed)
It consists of a guide that expands the sheet between the beams outward,
The guide means is a thin plate attached between each sheet support beam.
It is characterized in that the guide plate is shaped like a letter . The invention of claim 2
Each sheet is used as the guide plate instead of the thin guide plate.
Connected between the guide roller units at the end of the support beam
A guide link is used, and the guide link is one guide row.
And a second link rotatably connected to the
The second link connected to the guide roller unit of
A connecting pin for connecting the ends of the first link and the second link.
And a sheet extrusion plate connected to the connecting pin.
The connecting pin is connected to the roots of the first link and the second link.
It is characterized by being biased outward from the original side. Claim
Bed for hood apparatus of the invention of claim 3, and characterized in that there was Bei connecting cord in supporting a sheet lower surface being connected between each seat support beam in a state where the sheet was expanded along the guide rails on the cargo bed I do. In this specification, a truck or the like is a concept including a truck, a trailer, and an industrial bogie.

[0005]

According to the first aspect of the present invention, when the sheet supporting beam is moved along the inverted U-shaped guide rail, the sheet fixed thereto is also moved, so that the plurality of sheet supporting beams can be connected to the front and rear guides. When deployed on the rails, the seats can be covered in a bumpy shape on the loading platform, and when each sheet support beam is gathered on one leg of the front and rear guide rails, the seat can be folded to one side of the loading platform. it can. In this way, when the sheet is folded to one side of the loading platform, the upper side of the loading platform and the other side are open, so that it is possible to carry the cargo upward using a crane or the like,
In addition, side cargo handling using a forklift or the like becomes possible.
Then, as described above, the unfolding and gathering of the sheet supporting beams can be automatically performed by circulating the driving cable by the driving device. That is, when one of the sheet support beams furthest from one side of the bed is moved in the deployment direction, the other sheet support beams are moved by being pulled through the sheet or by the connecting cable when the connecting cable is provided. On the front and rear guide rails, they are deployed at substantially equal intervals, and the seat is hung. Also, when the one sheet support beam is moved in the gathering direction, the other sheet support beams are pushed by it and are gathered on one side leg of the front / rear guide rails to be folded. is there. Also, when the sheet is folded by the thin plate-like inner plate that expands the sheet outward, the part of the sheet sandwiched between the sheet support beams always expands outward and is folded inward. Since there is no sheet, the next unfolding operation is performed smoothly, and the sheet does not hurt. In the case where the guide means of claim 2 is provided, the first link and the second link are gradually bent, so that the sheet is not damaged, and at the time of folding, the sheet support beam is connected to the succeeding sheet support beam in the vertical portion of the guide rail. There is an advantage that the sheet is not damaged because it is hung on the guide rail and does not drop suddenly. Claim 3
According to the invention, since the other sheet support beam is pulled by the connecting cable, no load is applied to the sheet and the sheet is not damaged. When the seat is extended, the connecting cable supports the seat from the lower surface, so that there is an advantage that puddles are hardly formed even when it rains.

[0006]

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a side view of a hood device according to an embodiment of the present invention, FIG. 2 is a view taken along a line II in FIG. 1 showing a front guide rail, and FIG. 3 is a view taken along a line III in FIG. 1 showing a rear guide rail. It is.

In FIG. 1, D is a truck bed, and a front guide rail 1 is erected at the front of the truck D.
A rear guide rail 2 is provided upright at the rear. Reference numeral 3 denotes a seat support beam, and reference numeral 4 denotes a seat. In addition, the front half of the hood device in the figure shows a state in which the sheet supporting beams 3 are expanded and the bed 4 is covered with the sheet 4, and the rear half in the figure shows a state in which the sheet 4 is gathered to one side of the bed. I have. There are a plurality of seat support beams 3, each of which is bridged between the front guide rail 1 and the rear guide rail 2.
Are fixed by suitable means, for example, binding or tacking. A chain 5 constituting a driving cable as described in the claims is disposed near the front guide rail 1 and the rear guide rail 2, and a driving device for circulating the chain is configured as follows. The drive sprockets 6 are arranged in front and rear of the carrier D, and the front and rear drive sprockets 6 are connected by a transmission shaft 7. A motor 8 for circulating the chain 5 is installed in front of the loading platform D. In addition, Fa is a tilt plate attached to both side edges of the loading platform D.

As shown in FIG. 2, the front guide rail 1 is an inverted U-shaped member having the same width as the loading platform D, and its both ends are substantially in contact with the upper ends of the tilting plates Fa of the loading platform D, respectively. An inverted U-shaped chain guide 11 is mounted along the inside of the front guide rail 1, and guide sprockets 12, 12 are respectively installed near lower ends of both ends of the chain guide 11. The chain 5 includes a chain guide 11, a guide sprocket 1
2. It is wound around the drive sprocket 6 endlessly. Note that it is more preferable that the chain 5 pass under the lower surface of the carrier D because the chain 5 does not touch the load.

FIG. 3 is a rear view of the hood device of FIG.
Is a rear tilt plate. Note that, instead of the tilt plate Fb, a double door, panel, curtain, or any other door may be attached. A chain guide 11 is provided along the inside of the rear guide rail 2, and the drive system of the chain 5 has the same configuration as the front side in FIG. Reference numerals 3a to 3h denote eight sheet support beams, which are shown in an expanded state.
Therefore, the sheet 4 in FIG.

FIG. 4 is a front view showing a driving device and a part around the front guide rail 1, and FIG. 5 is a side view of the same. FIG.
5, a driving force transmitting chain 5a is wound around the motor 8 and the driving sprocket 6. When the motor 8 is rotated forward and backward, the chain 5 circulates in both forward and reverse directions. ing. Of course, power is also transmitted to the rear chain 5 by the transmission shaft 7, so that the rear chain 5 also circulates. A guide roller unit 30 at the front end of the sheet support beam 3 rolls on the front guide rail 1. The guide roller unit 30 includes a bracket 32 formed at an end of a beam member 31, two guide rollers 33 and one side roller 34 attached to the bracket 32 via a support.

FIGS. 6 and 7 are explanatory views showing the front portion of the sheet support beam 3, particularly the guide roller unit 30. FIG. The beam member 31 of the seat support beam 3 is composed of, for example, two parallel beams 31a and 31b and an oblique beam 31c stretched between them in order to increase rigidity.
The bracket 32 is fixed to an end of the bracket 32. Two columns 35 are protruded from the bracket 32, and a guide roller 33 is rotatably supported at the tip of each column 35.
A side roller 34 is rotatably supported at the tip of one support plate 36. The guide rail 1 is a member having a U-shaped cross section. A guide roller 33 and a side roller 34 roll inside the guide rail 1, and the rolling of the sheet support beam 3
3 and the side rollers 34 regulate the movement in the front-rear direction.

A chain 5 is provided on the lower surface of the bracket 32.
Are fixed by mounting brackets 41. It is to be noted that only one sheet supporting beam farthest from the gathering position of each sheet supporting beam 3, that is, only the sheet supporting beam 3h in FIG. 9 is fixed in this manner, and the other sheet supporting beams 3a to 3g. Is not fixed. The chain 5 is guided and circulated by a ridge 11a fixed to the chain guide 11. An L-shaped seat mounting plate 44 is provided on the upper surface of the bracket 32 via a support post 42 and a rubber cushion 43.
Is installed. The front and rear edges of the sheet 4 on the loading platform are slightly wound inward and attached by the sheet mounting plate 44.

At a suitable place outside the seat mounting plate 44,
A thin plate-like elastic guide plate 45 is attached.
The guide plate 45 constitutes a guide means described in the claims. When the eight sheet support beams 3a to 3h are deployed along the front and rear guide rails 1,1, all the sheet support beams are provided. It is fixed so as to connect the sheet mounting plates 45 of 3a to 3h. The above configuration is the same on the rear guide rail side.

Next, the operation of opening and closing the seat according to the present embodiment will be described. The right side in FIG. 8 shows a state where the sheet 4 is hung on the carrier D (illustrated line). When the chain 5 is circulated in the direction of the arrow o from this state, the sheet support beam 3h to which the chain 5 is fixed is changed to the other sheet support beams 3b to 3g.
Are pushed one after another, and are gathered to one leg of both front and rear guide rails 1. The left side in FIG. 8 shows a state in which the sheets 4 are gathered to one side of the bed D in this manner (shown by a solid line). In this case, the upper part and one side (right side in the figure) of the loading platform D are naturally opened, so that the cargo can be loaded from above and from the side. Then, as shown in FIG. 9, the thin plate-shaped guide plate 45 is bent outward by elasticity (the guide rail 1 does not obstruct inwardly and does not bend), and the sheet 4 is stretched from the inside to the outside. For this reason, since the sheet 4 is orderly folded outward, it is easy to open and close, and there is an advantage that the sheets 4 are less likely to be scratched and damaged.

Next, when the sheet 4 is developed, the sheet 4 shown in FIG.
The chain 5 is circulated in the opposite direction as shown by the arrow c. Then, the seat support beam 3h is pulled by the chain 5 and moves to the opposite sides of the front and rear guide rails 1,
The movement is transmitted via the guide plate 45 or the seat 4 itself or the guide plate 45, and the sheet support beam 3b is successively provided.
~ 3 g are spread on the front and rear guide rails 1 at substantially equal intervals. When the leading sheet support beam 3h reaches the lower ends of the legs on the opposite sides of the front and rear guide rails 1, the seat 4 completely covers the loading platform D in a bumpy shape (illustrated line in FIG. 8).

As described above, the seat 4 and the guide plate 4
Pulling the succeeding sheet support beams 3b to 3g at 5 applies an extra load to the sheet 4 and may cause damage. In this case, as shown in FIG. 5, a connecting rope 46 such as a rope or a wire rope for connecting adjacent sheet supporting beams 3 may be used. In this case, since the connecting rope 46 bears all the tensile force when the sheet is extended, the sheet 4 is not damaged. Further, if several connecting cables 46 are connected to each of the sheet supporting beams 3 at appropriate intervals in the longitudinal direction, there is an advantage that the sheet 4 at the time of extension does not accumulate rain.

Next, another embodiment of the present invention will be described with reference to FIGS.
1 will be described. In the above embodiment, the transmission shaft 7 between the front and rear guide rails 1 and 2 is installed above the loading platform D.
Instead, a suitable space below the loading platform D may be passed. In this case, there is an advantage that the load loaded on the bed D is not obstructed by the transmission shaft 7. When the transmission shaft 7 is moved below the loading platform D, a guide sprocket 12 for guiding the chain 5 may guide the circulation of the chain 5 at an appropriate location. Although the motor is not shown, it is preferable to install the motor near the driving sprocket 6 or at a position where the chain 5a can be easily passed.

Further, in the above embodiment, the sheets are gathered to the left side of the loading platform. However, the chain 5 is fixed to the sheet supporting beam 3a using the chain mounting bracket 41, and the subsequent sheet supporting beams 3b to 3h are free. , It can be gathered on the right side of the loading platform D. It is possible to arbitrarily select which of the right and left sheets 4 is collected.

Next, still another embodiment of the present invention will be described with reference to FIG.
This will be described based on 18. FIG. 12 is a schematic view of the front guide rail portion in the hood device of the present embodiment. The front guide rail 1 is an inverted U-shaped guide member substantially similar to the above embodiment, and a link guide 10 for guiding a later-described guide link 20 is provided on the outer periphery thereof. The rear guide rail has the same configuration. Then, guide roller units 30 provided at both ends of a plurality (10 in the embodiment) of the sheet support beams 3 are provided along one of the front and rear guide rails 1 and (2), and one side and the other side of the carrier. It is designed to be driven between. The sheet 4 is attached to each guide roller unit 30 as described later.

FIG. 15 is a side view of the guide roller unit 30. Parts substantially the same as those in the embodiment shown in FIGS. That is, a bracket 32 is fixed to an end of a beam member 31 constituting the seat support beam 3, and a guide roller 33 and a side roller 34 are mounted on a support 35 attached to the bracket 32. A chain 5 is attached only to the guide roller unit 30 of the seat supporting beam 3j (see FIG. 12), and the chain 5 is connected to the chain guide 11 on the upper surface of the guide rail 1.
It circulates along the upper surface. Further, a sheet attachment plate 44 is attached to the bracket 32, and the sheet 4 is fixed through the sheet attachment plate 44 by any means such as binding or tacking. A chain drive mechanism as shown in FIG. 2 or FIG. 11 is connected to the chain 5, and the chain drive mechanism circulates the chain 5 so that the seat 4 is unfolded or folded.

FIGS. 13 and 14 are a side view and a plan view showing the guide link 20 provided between the adjacent guide roller units 30, 30, respectively. A first link 21 is rotatably mounted on one guide roller unit 30 by a pin 51, and a second link 2 is mounted on the other guide roller unit 30.
2 is pivotally mounted on a pin 52 so as to be freely rotatable. Slots 23 and 24 are formed at the ends of the first link 21 and the second link 22, and the links 21 and 22 are connected to the slots 23 and 24 through the connecting pins 25. The first link 21 and the second link 22 are slightly bent in the middle, and the position of the connection pin 25 is slightly offset to the outside of the link guide 10 from the line connecting the root pins 51 and 52. The first link 21 is provided with a stay 26 so as to maintain the deviated posture.
The auxiliary roller 27 is attached. When the auxiliary roller 27 is in contact with the inner peripheral surface of the link guide 10, the above-described biased posture is maintained. When the auxiliary roller 27 passes through two arc-shaped corner portions of the link guide 10 (see FIG. 12), the first and second links 21.2 are connected.
2 serves to protect the inner surface of the link guide 10 from contacting the inner surface.

FIGS. 15 and 16 are a view taken along a line V and a view taken along a line VI of FIG. 13. As shown in FIG.
Pins 51 and 52 at the roots of the link 21 and the second link 22 are attached to the sheet attaching plate 44 by stays 53 and 54, and rollers 55 and 56 are pivotally mounted at one end of the pins 51 and 52. These rollers 55 and 56 are linked guide 1
It plays a role of making the passage through 0 smoothly.

FIG. 17 is a view taken on line VII of FIG.
As shown in the figure, rollers 57 are mounted on both ends of the connection pin 25, and a sheet push-out plate 59 is attached to the connection pin 25 by a stay 58. When the roller 57 passes through the arcuate corner of the link guide 10, the first link 21 and the second link 22
It plays a role of protecting the inner peripheral wall from hitting it.

In the above configuration, as shown by a solid line in FIG.
(See FIG. 8) to drive the rightmost guide roller unit 3
When 0 is moved in the direction of arrow 0, the guide link unit 20 sequentially pushes the front guide roller unit 30 and is collected on the guide rails 1, (2) and the left leg of the link guide 10. At this time, as the distance between the adjacent guide roller units 30 decreases, the first link 21 and the second link 22 are bent, and the two guide roll units 30 come into contact with each other as shown in FIG. The first link 21 and the second link 22 are completely bent. At this time, the connecting pin 25 of the first link 21 and the second link 22 is located outside the line connecting the pins 51 and 52 on the base side as shown in FIG.
The sheet 4 is necessarily folded outward, and the sheet 4 is folded by the sheet pushing plate 59 so as to protrude outward. The folded sheet 4 is as shown by the imaginary line in FIG.

As described above, each guide roller unit 30
Means that the sheet support beams 3 are also moved in sequence, but each guide roller unit 30 extends from the upper horizontal portion of the guide rails 1 and 2 beyond the arc-shaped corner portion. , When entering the vertical part on the side, the preceding guide roller unit 30 is
As a result, the sheet is suspended while being suspended by the subsequent guide roller unit 30, and therefore, the inconvenience of the preceding sheet support beam 3 entering the vertical portion and suddenly falling and damaging the sheet 5 is prevented beforehand. It is possible.

In order to expand the sheet 4 after folding the sheet 4 in the manner described above, the direction opposite to the above (ie, the arrow c)
In the direction). In the position where the first and second links 21 and 22 are folded and project outward, the projecting line 10a on the opening side of the link guide 10 is cut out so that the roller 57 can pass through. In this embodiment, since each of the seat supporting beams 3 is connected by the guide link 20, the connecting cable 46 as shown in FIG. 1 does not need to be used. However, in order to prevent rainwater from accumulating on the sheet 4, it is preferable to use the connecting cable 46.

The hood device of each of the above embodiments can be applied to any size truck, from large to small, as long as it is a truck, and can also be applied to trailers and various industrial trolleys. It is.

[0028]

Effects of the Invention According to the present invention, the loading platform of the upper surface so that allows the easy upper handling can entirely open, yet lateral handling is also possible, further opening and closing operation of the sheet easy, the sheet When folded, the sheet expands outward
It is possible to provide a loading platform for hood device Urn Ru trucks and smoothly perform deployment operation of tribute. According to the invention of claim 2
For example, in addition to the effect of the invention of claim 1, when the sheet is folded,
This prevents the sheet from dropping sharply and does not damage the sheet.
Play a fruit. According to the invention of claim 3, when the sheet is extended,
Connecting cables support the underside of the seat, preventing rainwater from collecting.
Play a fruit.

[Brief description of the drawings]

FIG. 1 is a side view of a hood device for a cargo bed according to an embodiment of the present invention.

FIG. 2 is a view showing the front guide rail 1 as viewed from the direction of arrows II in FIG. 1;

FIG. 3 is a view of the rear guide rail 2 as viewed from the direction of the arrow III in FIG. 1;

FIG. 4 is a front view showing a driving device of the chain 5 and a part around the front guide rail 1;

FIG. 5 is a side view showing a driving device of the chain 5 and a part around the front guide rail 1;

6A is a side view of a front end portion of the seat support beam 3, and FIG. 6B is a sectional view taken along line B of FIG. 6A.

7A is a side view of a front end portion of the seat support beam 3, and FIG. 7B is a cross-sectional view taken along line B in FIG. 7A.

FIG. 8 is an explanatory view showing an open / closed state of a seat 4.

FIG. 9 is an explanatory diagram of a state where the sheet 4 is folded.

FIG. 10 is a side view of a hood device for a loading bed according to another embodiment of the present invention.

FIG. 11 is a front view of the front guide rail in the embodiment of FIG.

FIG. 12 is a front view of a front guide rail according to another embodiment of the present invention.

FIG. 13 is a side view of the guide link.

FIG. 14 is a plan view of a guide link.

FIG. 15 is a view taken in the direction of the arrow V in FIG. 13;

16 is a view taken in the direction of the arrow VI in FIG. 13;

FIG. 17 is a view taken along line VII of FIG. 13;

FIG. 18 is an explanatory diagram of a state where an extruded plate of a guide link pushes out a hood.

FIG. 19 is a perspective view of a conventional side-open vehicle.

FIG. 20 is a perspective view of a conventional accordion-type hood.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Front guide rail 2 Rear guide rail 3 Seat support beam 4 Seat 5 Chain 6 Drive sprocket 7 Transmission shaft 8 Motor 11 Chain guide 12 Guide sprocket 20 Guide link 21 1st link 22 2nd link 33 Guide roller 34 Side roller 45 Guide plate 46 Connecting cable 59 Sheet extrusion plate

Claims (3)

(57) [Claims] 1. An inverted U-shaped front guide rail having the same width as the width of a loading platform erected at a front end of a loading platform such as a truck, and an inverted U having the same width as a loading platform erected at a rear end of the loading platform. -Shaped rear guide rails, and a plurality of sheets that are bridged between the front guide rails and the rear guide rails, guided by the two guide rails, and movable between one side and the other side of the carrier. A support beam, a sheet for covering the loading platform, with both side edges and an intermediate suitable position fixed to each of the sheet supporting beams in a state where the plurality of sheet supporting beams are separated at substantially equal intervals, and one side of the loading platform. farthest coupled to one of the seat support beams, the driving rope of Cyclic along the guide rails, a drive device for a Cyclic said drive cord to both forward and reverse directions, each of said sheet support beam both guide from One leg on one side of the rail
When gathered in
Inflating guide means, wherein said guide means is a thin plate mounted between each seat support beam.
A hood device for a carrier such as a truck, wherein the hood device is a guide plate of a shape . 2. A thin plate-like guide plate is used as said guide means.
Between the guide roller units at the end of each sheet support beam
Is used, and the guide link is used.
Is rotatably connected to one guide roller unit.
Connected to the first link and the other guide roller unit
The second link, and the end of the first and second links
A connecting pin for connecting the ends, and the connecting pin
A sheet extruding plate, wherein the connecting pin is connected to the first link
The hood device for a carrier such as a truck according to claim 1, wherein the hood device is biased outward from a root side of the second link . 3. Is coupled between the seat support beam in a developed state along the guide rails on the sheet loading platform
Bed for hood device such as a truck according to claim 1, wherein further comprising a connecting cord in supporting a sheet lower surface Re.