JP2009096434A - Roof structure for wing vehicle provided with heat insulation panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To accurately and easily mount an edge member attached to front and rear ends of a wing roof panel by a rivet in a vehicular wing body surrounded by a heat insulation panel. <P>SOLUTION: A extrusion material 44 formed with a recession part on an upper part is fixed to an end surface of the heat insulation panel forming a main part of the roof panel 41 of the wing by the rivet BR. An edge member 43 welded with a reinforcement member RF for connecting a hydraulic cylinder for opening/closing the wing is fastened to the extrusion material 44 by the rivet in such a state that the end part is fitted to the recession part of the upper part. Since the edge member 43 is accurately positioned at the extrusion material 44 and is retained in the stable state, fastening work by the rivet is facilitated. Since a rectangular part of hollow cross section is formed on the extrusion material 44, its rigidity is high. Further, a gasket GW is installed on a lower part of the extrusion material 44, and air-tight property of the inside of a baggage chamber is ensured upon closure of the wing. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a box-type cargo bed of a wing vehicle that includes a wing that opens and closes in a flip-up manner and cools a cargo room surrounded by a heat insulating panel by a refrigeration apparatus, and particularly relates to a structure of a roof portion of the wing.

  Truck loading platforms, which are vehicles for freight transportation, include an uncovered loading platform that opens upward, and a box-shaped loading platform that has a roof and is hermetically sealed. In recent years, box-type cargo beds that can prevent cargo damage due to wind and rain, simplify cargo packing, and prevent load dumping have become widespread, making it possible to load and unload cargo quickly. For the purpose of rationalization, a box-type cargo bed called a wing body with a flip-up roof is also frequently used.

  In the wing body, the roof panel divided into left and right along the center line is integrated with the side panel of the loading platform, and the left and right wings are hinges attached to the center beam of the loading platform roof. Is opened and closed in a flip-up manner by an actuator such as a hydraulic cylinder. When loading and unloading cargo, if the actuator is operated to open the wing, and further open the cover plate located on the lower side of the cargo bed, the side of the cargo bed will be opened over the entire surface. Cargo handling work is greatly streamlined. Although it is a relatively special example, there is also a wing body in which the side panel is extended to the floor of the loading platform and the cover plate is omitted.

  In the field of freight transportation by trucks and the like, demand for transportation of fresh foods such as vegetables, fruits and seafood, or frozen foods is increasing with the diversification of consumer life and the pursuit of convenience. For transporting fresh foods or frozen foods, a fixed-temperature transport vehicle equipped with a sealed box-type cargo bed surrounded by heat insulation panels and maintaining the temperature inside the cargo room at a constant temperature using a refrigeration system, etc. is used. Such a vehicle is also called a refrigerator car or a freezer car depending on the temperature region in the cargo compartment. Recently, food safety requirements have become stricter, and it has become necessary to strictly control the temperature in the cargo compartment during transportation so that it does not deviate from the appropriate range according to the cargo to be loaded. Is growing. In order to rationalize the cargo handling work in a constant temperature transport vehicle, a constant temperature transport wing vehicle having a box type cargo bed surrounded by a heat insulating panel as a wing body is often used.

  The structure of a general box-type carrier for a wing vehicle for constant temperature transportation will be described with reference to FIG. A front panel 1 having a front frame is arranged at the front part of the loading platform, a rear frame 2 is arranged at the rear part, and a double door rear door 3 is attached to the rear frame 2. Two wings 4 are arranged in the upper part of the box-type loading platform, and these are L-shaped in cross section in which a roof panel 41 and a side panel 42 divided at the center are integrated. At the lower part of the side surface of the loading platform, a turn plate 5 is provided so as to be rotatable downward by a hinge 51. Insulation panels are attached to the surrounding surface of the box-type cargo bed, including the wing 4 panel, so that the inside of the cargo room is insulated from the outside air and kept at a low temperature. An evaporator is mounted and a cold air outlet 6 for blowing out cooling air is provided.

  As an actuator for opening and closing the wing 4, two hydraulic cylinders 7 that connect between the rear frame 3 and the roof panels 41 of the left and right wings are respectively installed. Also installed. When the rod of the hydraulic cylinder 7 is extended, as shown by the solid line in the figure, the wing 4 moves upward to open the upper part of the side surface of the loading platform, and at this time, the loading plate 5 is turned downward to rotate the loading platform. As a result, the workability of loading and unloading cargo is greatly improved. On the other hand, when the vehicle is running, if the rod of the hydraulic cylinder 7 is shortened with the cover plate 5 in the illustrated state, the wing 4 descends as shown by the two-dot chain line in the figure, and the lower end of the side panel 42 of the wing 4 The portion comes into contact with the upper end portion of the turn plate 5 and the loading platform is closed.

  When the wing is opened and closed by the hydraulic cylinder, since the weight of the wing is supported by the rod of the hydraulic cylinder, a large load acts on the connecting portion between the wing and the hydraulic cylinder. In the case where the wing panel is constituted by a heat insulating panel like a constant temperature transport wing car, an edge member made of a strong metal plate is fixed to the front end portion and the rear end portion of the roof panel, and the edge member is attached to the edge member. The reinforcing member is fixed by welding or the like to connect the rods of the hydraulic cylinder. The structure of the edge part of such a conventional roof panel is shown in FIG. FIG. 4A is a schematic diagram of a box-type cargo bed of a constant temperature transport wing vehicle, and FIG. 4B is a cross-sectional view taken along line XX in FIG.

  As shown in the left part of FIG. 4 (b), a high-strength edge member 43 such as stainless steel is provided at the front end of the heat-insulating panel that constitutes the main part of the roof panel 41, and the small step D formed thereon is insulated from the heat-insulating panel. Are fixed by rivets (blind rivets) BR. 4A, the edge member 43 extends in the direction of the side panel 42 along the front end of the roof panel 41, and a U-shaped reinforcing member RF is welded to the back surface of the edge member 43 by welding. It is fixed. When the wing 4 is closed, the reinforcing member RF faces the upper rail 11 of the front panel 1, and the end of the rod of the hydraulic cylinder 7 (FIG. 3) is connected to the reinforcing member RF.

  In constant-temperature transport wing vehicles, when the wing is closed, low-temperature air leaks from the gap between the wing and the surrounding area of the box-type cargo bed or the board, and high temperature outside air enters the cargo. It is necessary to prevent the indoor temperature from rising. In addition, it is necessary to prevent the cargo in the cargo compartment from being damaged due to the intrusion of rainwater or dust. For this reason, a gasket GE mainly intended for watertightness is installed at the tip of the edge member 43, and a lip-shaped gasket g mainly intended for airtightness is installed on the cargo compartment side. The lip-shaped gasket g is attached to a member RM fixed to the rear surface of the edge member 43 by welding via a synthetic resin heat insulating member, and a tip portion of the lip-shaped gasket g contacts the opposite surface of the heat insulating member fixed to the upper rail 11. It touches.

Also at the rear end of the roof panel 41, as shown in the right part of FIG. 4B, an edge member 43 and a reinforcing member RF similar to the front end are provided. And the sealing device by the gasket similar to a front end is also placed between the rear end of the roof panel 41 and the upper rail 21 of the rear frame 2 into which the rear door 3 is fitted. About the structure of the edge part of such a roof panel in the wing vehicle for constant temperature transportation, it is disclosed by Unexamined-Japanese-Patent No. 2001-260663, for example.
JP 2001-260663 A

  The edge member 43 made of stainless steel or the like attached to the end portion of the roof panel 41 of the wing has a large weight to which the reinforcing member RF or the like is welded. The edge member 43 is coupled to the heat insulation panel using a rivet BR at the end portion where the step D is formed. When the edge member 43 is attached, the end portion and the heat insulation panel are accurately aligned. In this state, it is necessary to perform the rivet BR fastening operation. However, the end portion has a narrow width in the front-rear direction, and the gravity of the edge member 43 acts in front of the end portion. Therefore, the position and posture of the edge member 43 with respect to the heat insulating panel are likely to be unstable, and it is difficult to accurately fasten the two by rivets.

In addition, a member RM for attaching the gasket g is fixed to the end portion of the edge member 43 to which the heat insulating panel is fastened by welding. At this time, heat is generated in the vicinity of the welding portion due to the influence of heat during welding. Deformation may occur. In particular, when there is a step portion in the vicinity of the welded portion, the thermal deformation becomes large. When such a thermal deformation occurs, the end portion of the edge member 43 becomes as shown by a two-dot chain line in FIG. Bends upward or downward. Therefore, it is more difficult to fasten both ends with rivets while accurately aligning the end portion and the heat insulation panel, and in some cases, the edge member 43 and the heat insulation panel are attached in a bent state, The sealing performance of the gaskets g and GE deteriorates.
It is an object of the present invention to facilitate the fastening operation of the edge member mounted on the front and rear ends of the roof panel of the wing, and to attach the edge member to the heat insulation panel with accurate positioning.

In view of the above problems, the present invention attaches a mold material having a recess in the upper part to the end face of the heat insulating panel that forms the main part of the roof panel of the wing with a rivet, and fits the end of the edge member in the recess. The mold material and the edge member are fastened with rivets, and a gasket is attached to the lower part of the mold material. That is, the present invention
“A wing roof panel provided in a vehicle wing body and opened and closed in a flip-up manner by a hydraulic cylinder installed at the top of a box-type cargo bed,
The roof panel includes a heat insulating panel and a metal edge member disposed in front and rear of the roof panel and extending in a lateral direction of the vehicle, and a reinforcing member to which the hydraulic cylinder is connected is fixed to the edge member. In addition,
At the front end and the rear end of the heat insulation panel, a mold material extending in the lateral direction of the vehicle along the end surface of the heat insulation panel is fastened by rivets,
In the mold material, a recess is formed in the upper part of the cross section, and a gasket is attached to the lower part,
The edge of the edge member is fitted into the recess, and is fastened to the mold by rivets.
It is the roof panel of the wing characterized by that.

  According to a second aspect of the present invention, the mold member has a hollow rectangular portion and an extension portion extending backward from the upper side of the rectangular portion in the cross section thereof, and the recess into which the edge member is fitted. Are formed on the upper side of the rectangular part, the heat insulating panel is fastened to the extension part, and the gasket is preferably attached to the lower side of the rectangular part.

  Further, as described in claim 3, a fixed-side gasket is installed in the vicinity of a fixed part of the box-type cargo bed where a gasket attached to the lower part of the mold material abuts, and when the wing is closed, It is preferable that the fixed-side gasket is disposed so that the tip of the fixed-side gasket faces the mold material, and the gasket attached to the lower part of the mold material and the fixed-side gasket are in contact with each other.

In the wing body of a constant temperature transport vehicle, the main parts of the roof panel and the side panel of the wing are heat insulation panels, and hydraulic cylinders for opening and closing the wings are attached to the edge members arranged in front and rear of the heat insulation panel of the roof panel. It is connected via a reinforcing member. In the present invention, a mold member extending in the lateral direction of the vehicle along the end surface is fixed to the front and rear end surfaces of the heat insulating panel of the roof panel by rivets. A gasket is attached to the lower part of the mold material, and a recess is formed in the upper part of the mold material. The end of the edge member is fitted into this recess, and the mold material and the edge member are fastened with rivets.
That is, when assembling the edge member in the present invention, the edge of the edge member is inserted into the recess formed in the upper part of the mold material, and the edge of the edge member is held by the recess, and the rivet is driven into the mold material. The edge member is fastened. Therefore, even a heavy edge member to which a reinforcing member for connecting the hydraulic cylinder is fixed can be stably supported and a fastening operation using a rivet can be easily performed. The edge member of the present invention is a flat plate in which no step is formed in the vicinity of the end inserted into the recess, and the end of the edge member is separated from the welded portion of the reinforcing member, It will not be deformed by the influence of.

  The mold material fixed to the end face of the heat insulation panel is an aluminum extrusion molded product, and it is possible to form a recess formed in the upper part of the cross section with high dimensional accuracy. Therefore, it is possible to accurately position and assemble the edge member with respect to the heat insulating panel, the mounting position of the gasket installed at the lower part of the mold material is also accurate, and the sealing performance of the wing roof panel peripheral portion is deteriorated. There is no. Moreover, since the mold material is fastened to the heat insulating panel by rivets and welding is not performed at the fastening portion, thermal deformation does not occur.

  According to a second aspect of the present invention, in the cross section of the mold member, a hollow rectangular portion and an extension portion extending backward from the upper side of the rectangular portion are provided, and a recess into which the edge member is fitted is formed on the upper side of the rectangular portion. In addition, a heat insulating panel is fastened to the extension. Since the rigidity of the mold material is greatly increased by providing the hollow rectangular portion, bending or twisting of the roof panel or edge member due to vibration or the like during traveling of the vehicle is suppressed. As a result, when the vehicle is traveling with the wing closed, it is possible to prevent the gasket or the like installed at the lower part of the mold material from being separated from the facing surface and creating a gap in the peripheral edge of the wing, thereby impairing the sealing performance. The side of the hollow rectangular portion is in close contact with the end face of the heat insulating panel, and also serves to protect the heat insulating material of the heat insulating panel.

According to a third aspect of the present invention, a fixed-side gasket is installed in the vicinity of a fixed portion of a box-type cargo bed where a gasket attached to the lower portion of the mold material abuts. Both gaskets are arranged close to each other so that the gasket at the bottom of the mold and the fixed gasket are in contact with each other.
With the arrangement of the two gaskets, when the wing is closed, the gasket is located outside the contact portion between the tip portion of the gasket at the lower part of the mold member and the facing surface and the contact portion between the tip portion of the fixed side gasket and the facing surface. A sealing surface is also formed at the contact portion of both gaskets. The flow of air that passes through these three sealing surfaces while being bent does not substantially occur, and the airtightness of the periphery of the roof panel of the wing is significantly improved.

  In the invention according to claim 3, the gasket at the lower part of the mold material is attached to the wing that opens and closes, while the fixed side gasket is attached to the fixed part of the box-type cargo bed. And the relative movement between the box-type carrier and the box-type carrier are suppressed. In other words, even if the inertial force or vibration load due to acceleration / deceleration during traveling of the vehicle with the wing body mounted on it acts on the wing separated from the fixed part of the box type carrier, the wing tries to move relatively, The wing side gasket and the stationary side gasket that are in contact with each other resist relative movement and suppress excessive displacement of the wing. As a result, it is possible to avoid a situation in which the tips of both gaskets are separated from the opposing surfaces due to acceleration / deceleration of the vehicle being transported and the temperature inside the cargo compartment rises due to the air flow. In addition to being easy, the heat load of the refrigeration apparatus is reduced, and the power required to drive it is reduced.

  Hereinafter, the structure of the edge part in the roof panel of the wing of this invention is demonstrated based on drawing. FIG. 1 is an overall cross-sectional view of the roof panel of the present invention, and is a cross-sectional view of the wing body of FIG. 4 (a), similar to FIG. 4 (b) showing a conventional structure. It is. FIG. 2 is an enlarged view of the main part of FIG. Here, the basic configuration and operation of the wing body to which the present invention is applied are not particularly different from those of the conventional wing body shown in FIG. ing.

  As shown in the left part of FIG. 1 (a), the front panel 1 (FIG. 3) of the box-type loading platform includes an upper rail 11 to which a hydraulic cylinder 7 for opening / closing wings (FIG. 3) is attached, and a roof panel. A reinforcement member RF having a U-shaped cross section extending in the lateral direction of the vehicle is attached to the front portion of the vehicle 41, and the rod of the hydraulic cylinder 7 is connected thereto. The reinforcing member RF is fixed to the back surface of the edge member 43 having a high strength such as stainless steel extending along the front end of the roof panel 41 by welding. The main parts of the roof panel 41 and the side panel 42 (FIG. 3) are heat insulation panels so as to insulate the cargo space from the outside air and keep it at a low temperature. This heat insulation panel is called a sandwich panel in which thin metal plates are laminated on both sides with a heat insulating material sandwiched between them. For example, foamed polystyrene is used for the heat insulating material and surface-treated aluminum plate is used for the thin metal. The

  In the roof panel of the present invention, a mold member (aluminum extruded product) 44 extending along the front end of the roof panel 41 is attached to the front end portion of the heat insulating panel of the roof panel 41. As shown in the enlarged view of FIG. 2A, the mold member 44 has a hollow rectangular portion 44A and an extended portion 44B extending rearward from the upper side of the rectangular portion 44A in the cross section thereof, and the rectangular portion 44A. A recess 44C is formed on the upper side. The mold member 44 is positioned such that the side of the rectangular portion 44A is in close contact with the end face of the heat insulation panel, and the extension portion 44B is fixedly attached to the upper surface of the heat insulation panel with a rivet (blind rivet) BR. A gasket GW having a hollow cross section is installed on the lower side of the rectangular portion 44A so as to seal between the upper rail 11 with which the roof panel 41 abuts when the wing is closed (in FIG. 1 and FIG. 2A, the gasket). GW etc. are shown in a free state). As shown in the right part of FIG. 1, the rear frame into which the rear door 3 is fitted also includes an upper rail 21 to which a hydraulic cylinder is attached, and the rear portion of the roof panel 41 has the same structure as the front portion. .

  The edge member 43 to which the reinforcing member RF is welded has a flat surface overlapped with the upper side of the mold member 44, and the end of the edge member 43 is inserted into a recess 44C formed on the upper side. It is fixed with. That is, the mold material 44 is first fixed to the heat insulation panel with rivets, and then the edge member 43 is fastened to the mold material 44 with rivets. However, the mold material 44 is a relatively lightweight member and has a short length in the front-rear direction. It is easy to accurately position and fix with rivets. When the edge member 43 is assembled, the end of the edge member 43 is inserted into the recess 44C, and the rivet is driven with the end of the edge member held by the recess 44C. Therefore, even if the edge member 43 has a large weight welded to the reinforcing member, the edge member 43 can be stably supported and the fastening operation by the rivet can be easily performed. Since the edge part of the edge member 43 is away from the welded portion of the reinforcing member RF and is not affected by thermal deformation during welding, accurate alignment is possible.

  Since the mold member 44 includes a hollow rectangular portion 44A in its cross section, the mold member 44 has high rigidity and can suppress bending or twisting of the roof panel 41 and the edge member 43 due to vibrations or the like during vehicle travel. Therefore, it is possible to prevent the sealing performance from being impaired due to the gap between the gasket GW installed at the lower part of the mold member 44 and the peripheral surface of the wing when the vehicle is running with the wing closed.

  In the roof panel of this embodiment, a fixed gasket GF is installed in the vicinity of the gasket GW installed at the lower part of the mold material 44 so as to face the mold material 44. The gasket GW provided on the wing side and the fixed side gasket GF installed on the upper rail 11 which is a fixed part of the box-type cargo bed are arranged close to each other, and both gaskets are pressed against the opposite surfaces when the wing is closed. If it deform | transforms, as shown in FIG.2 (b), the side surfaces of both gaskets will mutually contact. As a result, in addition to the portion where the gasket GW and the fixed side gasket GF at the lower part of the mold material 44 are in contact with the opposing surface, a seal surface is formed at the contact portion of both gaskets, and the space between the roof panel 41 and the fixed portion of the box-type cargo bed The airtightness of the is greatly improved. In addition, even if the wing separated from the fixed part of the box-type carrier is about to be displaced relative to the fixed part due to vibration during traveling of the vehicle, the gasket GW and the fixed side gasket GF at the lower part of the mold material 44 that are in contact with each other. Reaction force and frictional force act between the two to suppress excessive displacement of the wing. As a result, it is possible to avoid a situation in which the tips of both gaskets are separated from the opposing surfaces and the temperature inside the cargo compartment rises while the vehicle is running. Although not shown, a similar sealing device using a double gasket is provided over the entire circumference of the wing such as the front and rear ends of the side panel 42 of the wing. An edge gasket GE that mainly prevents intrusion of rainwater and the like is installed on the edge of the edge member 43 fixed to the front and rear of the roof panel 41, and presses against the upper ends of the upper rails 11 and 21, respectively. Is done.

  A heat insulating member PF made of a synthetic resin such as vinyl chloride resin is fixed to the upper rail 11 of the front panel with which the gasket GW at the lower part of the mold material 44 abuts with a screw. The surface is covered with a heat insulating member PW made of synthetic resin. By installing these heat insulating members, it is possible to extremely reduce the amount of heat transmitted to the cargo compartment via the metal mold member 44 and the like, and to prevent a temperature rise in the cargo compartment. The heat insulating member PW also functions to protect the side surface of the heat insulating panel together with the side of the rectangular portion 44 </ b> A of the mold member 44.

  As described in detail above, the present invention provides a vehicle wing body surrounded by a heat insulating panel, in order to accurately and easily attach edge members attached to the front and rear ends of the roof panel of the wing. A mold member having a recess formed in the upper part is fixed to an end surface of the heat insulating panel formed by a rivet, and an end of the edge member is fitted into the recess to fasten the mold member and the edge member with the rivet. In the above-described embodiment, a hollow gasket having a hollow cross section is used as the lower gasket of the mold material, but a lip-shaped gasket can also be used. In addition, it is obvious that various modifications can be made to the embodiment, such as using wood or the like as a heat insulating member for the gasket mounting portion.

It is sectional drawing which shows the edge part structure of the roof panel of this invention. It is a figure which shows the enlarged view of the principal part of FIG. 1, and the deformation | transformation state of a gasket. It is a perspective view which shows the general wing vehicle for constant temperature transportation. It is sectional drawing which shows the edge part structure of the conventional roof panel.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Front panel 11 Upper rail 2 Rear frame 21 Upper rail 3 Rear door 4 Wing 41 Roof panel 42 Side panel 43 Edge member 44 Mold material 44A Rectangular part 44B Extension part 44C Recess GW, GF, GE Gasket

Claims (3)

A wing roof panel provided in a vehicle wing body and opened and closed in a flip-up manner by a hydraulic cylinder installed at the top of a box-type cargo bed,
The roof panel includes a heat insulating panel and a metal edge member disposed in front and rear of the roof panel and extending in a lateral direction of the vehicle, and a reinforcing member to which the hydraulic cylinder is connected is fixed to the edge member. In addition,
At the front end and the rear end of the heat insulation panel, a mold material extending in the lateral direction of the vehicle along the end surface of the heat insulation panel is fastened by rivets,
In the mold material, a recess is formed in the upper part of the cross section, and a gasket is attached to the lower part,
The edge member is fitted in the recess, and the wing member is fastened to the mold member by a rivet.   The mold member has a hollow rectangular part and an extension part extending rearward from the upper side of the rectangular part in a cross section thereof, and the recess into which the edge member is fitted is formed on the upper side of the rectangular part. The wing roof panel according to claim 1, wherein the heat insulating panel is fastened to the extension portion, and the gasket is attached to a lower side of the rectangular portion.   A fixed gasket is installed in the vicinity of the fixed part of the box-type carrier that the gasket attached to the lower part of the mold abuts, and the front end of the fixed gasket faces the mold material when the wing is closed. The roof panel of the wing according to claim 1, wherein the gasket attached to the lower part of the mold member and the fixed side gasket are arranged to contact each other.

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