JP2005047435A - Hood cover opening/closing device for truck load-carrying platform - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To optionally open/close a hood cover and to easily and lightly carry out the opening/closing work even by one driver without requiring power. <P>SOLUTION: The hood cover opening/closing device for a truck load-carrying platform is constituted such that a plurality of gate-like struts 2, 2R fixed to the hood cover 1 are longitudinally movably supported along left and right rails 6, 6 fixed to the truck load-carrying platform through a roller 5 mounted to lower ends of both left and right pillar parts 2a thereof, the longitudinal adjacent struts of the plurality of gate-like struts 2, 2R are connected through a pantograph type link mechanism 7 and the hood cover 1 is switchable to the cover tension state and the cover closing state by pulling operation of a plurality of rope-like strings 8F, 8R extended to a front side and a rear side along both left and right side parts of the truck load-carrying platform. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention provides a hood cover that is used, for example, to prevent a baggage from getting wet with rain when it is transported by a truck when it is raining, or to prevent dust or direct sunlight from being applied to the baggage even when the weather is fine. In detail, the hood cover made of flexible sheet for covering the upper part of the truck bed and the right and left sides of the truck bed is folded in the cover tension state where the truck bed is extended in the front-rear direction and at multiple places in the front-rear direction. The present invention relates to a hood cover opening / closing device for a truck bed, which is configured to be switchable between a cover closed state shrunk with a cover.

  In order to prevent rainwater, dust, and the like from splashing on the load loaded on the truck bed, a means for directly covering the loaded load with a sheet (cover) is generally employed. However, in this case, not only is the troublesome work of manually removing the sheets one by one when unloading the cargo from the truck bed, but also the rainwater and dust adhering to the sheets flow down when the truck is removed. Important luggage gets wet not only with the carrier but also with the luggage. In addition, when the seat is covered due to sudden rain falling during transportation, especially in the case of a single rider of the driver, it is very troublesome to cover the seat and the bag gets wet during that time. .

  In order to avoid such inconvenience, as shown in FIG. 7, rail-like jigs 21 and 21 are fixed in parallel to each other on the left and right sides of the truck bed 20, and the left and right rail-like jigs 21 and 21 The lower ends of the left and right side pillar portions 23a, 23a of the portal column 23 are inserted into a plurality of holes 22, 22 formed at intervals in the direction, and the plurality of portal columns 23 are fixedly erected on the truck bed 20. A so-called truck with a hood, in which a hood cover (not shown) is always attached to the plurality of gate-shaped columns 20 while being stretched in the front-rear direction, is known. .

  However, in the conventional truck with a hood with the above configuration, the hood cover remains stretched even when an empty vehicle is not loaded, so that the running resistance of the truck is increased, which is not preferable in terms of fuel consumption, Since the left and right side pillar portions 23a, 23a of the plurality of portal struts 23 are positioned at relatively narrow intervals on the left and right sides of the truck bed 20, the tilt plates 24, 24 on both sides of the truck bed 20 are turned downward. Even so, the left and right side pillar portions 23a, 23a of the gate-shaped column 23 are obstructed, and the cargo cannot be loaded or unloaded from the left and right sides of the truck bed 20, or it is very difficult. The loading / unloading direction is limited to the rear of the truck bed 20 and the loading / unloading work efficiency becomes very poor.

  The present invention has been made in view of the above circumstances, and can open and close the hood cover arbitrarily, and can be easily and lightly opened and closed by one driver without requiring force. The purpose is to provide a hood cover opening and closing device for a truck bed.

  In order to achieve the above object, a hood cover opening / closing device for a truck bed according to the present invention extends a hood cover made of a flexible sheet for covering an upper part and left and right side parts of the truck bed in the front-rear direction of the truck bed. A hood cover opening and closing device for a truck bed that can be switched between a covered cover tension state and a cover closed state that is folded and contracted at a plurality of positions in the front-rear direction, and is fixed at a plurality of positions in the front-rear direction of the hood cover. A plurality of gate-shaped support posts are supported so as to be movable back and forth along fixed rails on the left and right sides of the truck bed via cam followers attached to the lower ends of the left and right side pillar portions of each of the portal posts. The plurality of portal struts are connected to each other adjacent to each other through a pantograph-type link mechanism, and the plurality of portal struts are connected to each other. There are a plurality of rope-like cords that are fixed to the lower part of the left and right side pillar portions of the gate-shaped column located at the rear and extend forward and backward along the left and right sides of the truck bed. Cover opening / closing operation means for switching the hood cover between a cover tension state and a cover closed state by moving a plurality of portal struts back and forth along the left and right rails by pulling .

  According to the hood cover opening and closing device of the truck bed according to the present invention having the above-described configuration, when the rain starts during the transportation or during the transportation, the rope-like string extended rearward is pulled to the rear side of the bed. To move the plurality of portal struts rearward along the left and right rails, and in accordance with the movement, the hood cover is extended toward the rear of the truck bed so that the cover is in a tensioned state. When arriving at the transport destination, by pulling the rope-like string extending forward to the front side of the loading platform, the plurality of portal struts are moved forward along the left and right rails, and The hood cover can be opened and closed arbitrarily by a simple operation of simply pulling the rope-like string. As a result, while the cover is tight, the original waterproof and dustproof function of the hood cover is secured, and when the cover is closed, multiple portal columns are gathered in the front part of the truck bed and wide on the left and right sides of the bed. Luggage can be efficiently loaded from the side of the truck bed without securing the space for loading and unloading at the left and right side pillars of each gate-shaped column, and an empty vehicle without loading Sometimes it is possible to reduce the driving resistance of the truck by the hood cover and to save fuel. In addition, the cam followers that move along the rails are attached to the plurality of portal struts, and the adjacent portal struts are connected by a pantograph-type link mechanism. Even if only one driver performs the work, there is an effect that it can be performed easily and lightly without requiring a large force and with the interval between the gate-shaped support pillars always kept constant.

  In the hood cover opening / closing device of the truck bed according to the present invention configured as described above, a single operator such as a driver gathers and holds rope-like strings individually extended to the rear and front of the truck bed, or two The operator may be able to open and close the hood cover by simultaneously pulling one by one and pulling the hood cover, but in particular, the track of the rope-like string as claimed in claim 2 Two rope-like cords extending rearward along the left and right sides of the loading platform were hung on rollers attached to the left and right corners of the rear end of the truck loading platform, and then pulled out to the sides of the loading platform. Attach the pulling operation part for operating the hood cover to integrate both ends of the string and two rope-like strings extending forward along the left and right sides of the truck bed at the left and right corners of the front edge of the truck bed Hung around the roller In addition, by using a cover opening / closing operation means configured to have a pulling operation portion for closing the hood cover, which is formed by integrating both end portions of the cords that are collectively pulled out to the side of the loading platform, one person can work. It is only necessary for a person to stand on the side of the truck bed and hold and pull the pulling operation section, and the operability of opening and closing the hood cover by one person can be further improved.

  Moreover, in the hood cover opening / closing device for a truck bed according to the present invention, when a brake is applied suddenly during transportation with the cover stretched, a plurality of portal struts move forward along the rail and the hood cover is unpredictable. In order to prevent such an unexpected cover closing phenomenon, a means for fixing and holding the cover tension state is required. As the fixing and holding means, the rope-like string described above may be wound around and fixed to a hook provided on the truck bed, and a plurality of left and right side portions of the hood cover may be provided as described in claim 3. These loop-shaped rubbers may be attached, and these loop-shaped rubbers may be hooked on hooks provided on the truck bed so as to fix and hold the cover tension state. Among them, in the latter case, in the case where a plurality of loop-shaped rubbers are hooked on the hook, it is possible to simultaneously prevent the hood cover in a tension state from being beaten or lifted by the influence of wind pressure or the like. It is more effective.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a partially cut-away side view showing the entire configuration of a hood cover opening / closing device for a truck bed according to the present invention in a cover tension state in which the hood cover is opened, and FIG. 2 is a cover closed state in which the hood cover is closed. It is a partially exploded perspective view shown. In FIG. 1 and FIG. 2, reference numeral 1 denotes a flexible sheet hood cover for covering the upper part of the truck bed 20 and the left and right side parts. The hood cover 1 includes a plurality of hood covers described later at a plurality of positions in the front-rear direction. Are fixed to the horizontal rod portion 2b of the gate-shaped support columns 2 and 2R via a ring stopper 3 (see FIGS. 3 and 4).

  As shown clearly in FIGS. 3 to 5, rollers 5, 5 serving as cam followers are rotated at the lower ends of the left and right side column portions 2 a, 2 a of the portal columns 2, 2 </ b> R via mounting plates 4, 4. These left and right rollers 5 and 5 are rotatably supported in rails 6 and 6 which are fixed to the left and right sides of the truck bed 20 in parallel with each other. The plurality of portal struts 2 and 2R are configured to be movable along the rails 6 and 6 in the front-rear direction indicated by arrows F-R, and each of the portal struts 2 and 2R has their side pillar portions 2a. , 2a are connected to each other through the pantograph-type link mechanisms 7 and 7 so that the distance between the gate-shaped columns 2 and 2R is kept constant when moving in the front-rear direction. It is comprised so that.

  Further, the mounting plates 4 and 4 fixed to the lower ends of the left and right side column portions 2a and 2a of the portal column 2R located at the rearmost portion of the plurality of portal columns 2 and 2R are shown in FIGS. As shown most clearly in FIG. 1, one end of a total of four rope-like cords 8F and 8R is fastened. Of these four rope-like cords 8F and 8R, the two rope-like cords 8R extending rearwardly along the left and right side portions of the truck bed 20 from their fastening locations are the rear ends of the truck bed 20 By being wound around rollers 9R, 9R attached to the left and right corners of the part, and then being pulled out to one side of the truck bed 20 and integrated by means such as knotting the leading end parts, As shown in FIG. 1, the hood cover 1 is formed with a tension operation portion 10R for opening and operating in a cover tension state extended in the front-rear direction, while the four rope-like cords 8F and 8R are stopped. The two rope-like cords 8F extending forward along the left and right side portions of the truck bed 20 from the landing point were hung around rollers 9F and 9F attached to the left and right corners of the front end portion of the truck bed 20. Top, track The hood cover 1 is pulled out to one side of the loading platform 20 and integrated by means such as knotting the drawer end portions, whereby the hood cover 1 is folded and contracted at a plurality of locations in the front-rear direction as shown in FIG. A pulling operation unit 10F for closing the cover in a closed state is formed, and the front and rear pulling operation units 10F and 10R and rollers 9F and 9R are used to switch the hood cover 1 between a cover tension state and a cover closing state. Opening / closing operation means is configured.

  Further, as shown in FIGS. 1 and 3, a plurality of loop-shaped rubbers 11 and 11 are attached in the front-rear direction near the lower ends of the left and right side portions of the hood cover 1 so that the hood cover 1 is covered. Then, by hooking the loop rubbers 11 and 11 to the hooks 12 and 12 provided on the truck bed 20, the cover tension state can be fixed and held.

  In the trolley cover opening / closing device for the truck bed constructed as described above, the pulling operation unit 10R pulled out to one side of the truck bed 20 when the truck starts to carry the baggage or when it starts to rain during the carriage. As shown by the white solid arrow A1, the plurality of portal columns 2, 2R are moved through the rollers 5, 5 and the pantograph type link mechanisms 7, 7 by pulling to the side of the loading platform 20. While maintaining a certain interval and gradually increasing the interval, it is moved to the rear R along the left and right rails 6, 6. With this movement, the hood cover 1 is extended toward the rear of the truck bed 20, and FIG. The cover tension state shown in FIG.

  Further, when arriving at a predetermined transport destination, the operator pulls the pulling operation unit 10F drawn out to one side of the truck bed 20 and pulls it to the side of the bed 20 as shown by a white dotted arrow A2. As a result, the plurality of gate-shaped columns 2 and 2R maintain a constant interval via the rollers 5 and 5 and the pantograph-type link mechanisms 7 and 7 along the left and right rails 6 and 6 while sequentially decreasing the interval. The hood cover 1 is moved to the front F, and the hood cover 1 is shrunk so as to be folded at a plurality of positions in the front-rear direction along with this movement, and switched to the cover closed state shown in FIG.

  In this way, the hood cover 1 can be arbitrarily opened and closed simply by pulling the pulling operation portion 10R or 10F composed of the rope-like cords 8F and 8R as necessary. As shown in FIG. 2, when the cover is closed, a plurality of portal struts 2 and 2R are aggregated in the front part of the truck bed 20, and the original waterproof and dustproof functions are secured. Efficient loading / unloading of cargo from both sides of the truck bed 20 without securing the space for loading / unloading luggage on the left and right sides and being obstructed by the left and right side pillar portions 2a and 2a of the portal columns 2 and 2R. It can be carried out. Further, by closing the hood cover 1 when an empty vehicle is not loaded with luggage, it is possible to reduce the running resistance of the truck by the hood cover 1 and to reduce fuel consumption.

  In addition, rollers 5 and 5 which roll along the rails 6 and 6 are attached to the plurality of portal columns 2 and 2R, and adjacent portal columns 2, 2, 2 and 2R are pantographs. Since the link mechanisms 7 and 7 are connected to each other, the opening / closing operation of the hood cover as described above can be performed easily and lightly without requiring a large force even by one driver.

  In the above-described embodiment, when the pulling operation portion 10R or 10F is pulled, it is necessary to turn the tilting plates 24, 24 on both sides of the truck bed 20 downward, while the rear tilting plate is turned over. However, the hood cover 1 may be configured so that it cannot be opened or closed unless all the tilt plates are turned down.

  Further, in the above embodiment, when the brake is applied suddenly during transportation with the cover stretched, the plurality of gate-shaped columns 2 and 2R move forward along the rails 6 and 6 by the inertial force, and the hood cover 1 As a means for preventing the phenomenon that the hood cover is closed unexpectedly, a plurality of loop-shaped rubbers 11, 11 attached near the lower ends of the left and right sides of the hood cover 1 are hooked on hooks 12, 12 provided on the truck bed 20. Although the cover tension state can be fixed and held, the means for holding the tension operating portions 10R and 10F around the hooks provided on the truck bed 20 can be used instead. Good.

1 is a partially cutaway side view of a cover tension state in which a hood cover is opened, showing a configuration of an entire hood cover opening / closing device of a truck bed according to the present invention. FIG. 3 is a partially exploded perspective view showing a configuration of the entire hood cover opening / closing device of the truck bed according to the first embodiment in a cover closed state in which the hood cover is closed. It is a partially broken perspective view showing the enlargement of the main part of the hood cover opening and closing device of the truck loading platform. It is an enlarged front view of the principal part of the hood cover opening / closing device of a truck bed same as the above. It is an enlarged side view of the principal part of the hood cover opening / closing device of the truck bed of the above. It is a top view explaining the cover opening / closing operation means in the hood cover opening / closing device of the truck bed as above. It is a perspective view which shows the structure of the conventional truck with a hood.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Top cover, 2, 2R ... Gate-shaped support | pillar, 2a ... Left and right both side pillar part, 5 ... Roller (cam follower), 6 ... Rail, 7 ... Pantograph type link mechanism, 8F, 8R ... Rope-like string, 9F, 9R ... Roller, 10F, 10R ... tension operation section, 11 ... loop rubber, 12 ... hook, 20 ... truck bed.

Claims (3)

A cover-covered state in which a flexible sheet hood cover for covering the upper part of the truck bed and both left and right sides is extended in the front-rear direction of the truck bed, and a cover closed state in which it is folded and contracted at a plurality of positions in the front-rear direction. A hood cover opening and closing device for a truck bed that is configured to be switchable to
A plurality of portal struts fixed at a plurality of positions in the front / rear direction of the hood cover are fixed to the left and right sides of the truck bed via cam followers attached to the lower ends of the left and right side pillar portions of each of the portal supports. The plurality of portal struts are supported so as to be movable back and forth along the rails, and the struts adjacent to each other in front and rear are connected to each other through a pantograph type link mechanism, and the plurality of gates are supported. It has a plurality of rope-like strings attached to the lower part of the left and right side pillar portions of the gate-type pillar located at the rear end of the shape pillar and extending forward and backward along the left and right sides of the truck bed, Cover opening / closing operation means for switching the hood cover between the cover tension state and the cover closed state by moving the plurality of portal struts back and forth along the left and right rails by pulling these rope-like strings is provided. The track bed of the folding top cover opening and closing device, characterized in that are.   The cover opening / closing operation means hangs two rope-shaped strings extending rearward along the left and right sides of the truck bed among the rope-shaped strings on rollers attached to the left and right corners of the rear end of the truck bed. Rotating and pulling to the side of the loading platform and pulling the string ends together, the hood cover tensioning pulling operation unit and two trucks extending forward along the left and right sides of the truck loading platform The rope-shaped string is hung on rollers attached to the left and right corners of the front end of the truck bed, and the pulling section for closing the hood cover is integrated with both ends of the string pulled out to the side of the bed. The hood cover opening and closing device for a truck bed according to claim 1, comprising: A plurality of loop-shaped rubbers that fix and hold the cover tension state are attached to the left and right side portions of the hood cover by hooking on the hook provided on the truck bed when the hood cover is in the cover tension state. The hood cover opening and closing device for a truck bed according to claim 1 or 2.

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