JP2004203301A - Double door device for rear part of truck - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a double door device having a smooth surface of an outer wall, which improves water resistance, durability of the double door, and facilitates development of an advertising sheet. <P>SOLUTION: Right and left double doors 10, 11 of a truck 1 consists of a framework body 30 made of aluminum or the like, the outer wall board adhered to the surface of the outer wall of the framework body, and an inner wall board adhered to the surface of the inner wall. The right and left doors 10, 11 are hinged and connected between movable hinges 15, 17 provided on an outer edge vertical width whole length of the right and left framework body 30, and a fixed hinge 19 provided on the vertical right and left edges in the rear part opening frame 3B of a luggage room 3. Locking bars 20, 21 communicating to the inside between the inner edge upper and lower parts of the right and left framework bodies are engaged with and disengaged from locking tools 27, 29 provided on the central upper part D of the luggage room 3 by a locking means 25 provided the central lower part C in the rear part 3B of the luggage room. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double door system mounted on a rear part of a luggage compartment of a truck bed, and more particularly to a double door system in which the water resistance and durability of the door are improved and the aesthetic appearance is improved by making the wall surface smooth. .
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a luggage compartment of a hard hood is mounted on a truck bed to protect a load from rain, dust, and the like. At the rear of the opening of the luggage compartment, two or three double doors are provided on the left and right sides, and the joints of the two or three doors are closed by the hinges at the left and right ends with the locking device, and It is configured as a double door system that opens and closes. A double door system is generally widely known in which the double door is always closed by a locking means and is opened when unloading and loading cargo. "No known documents"
[0003]
The cross-sectional structure of the double door provided at the rear of the luggage compartment has a sandwich structure including an outer wall plate made of an iron plate or an aluminum plate, a wooden veneer plate serving as a core material, and an inner wall plate made of an iron plate or an aluminum plate. The veneer plate serving as a core material of the door easily penetrates rainwater and the like, and has water retention properties of water that has been absorbed once, so that the veneer is quickly rotted and damaged. Therefore, if holes for drainage and drying are made in the outer wall plate and the inner wall plate, a larger amount of rainwater or the like will enter the wooden part in the surrounding packing. There is a problem that this water does not evaporate and rots the plywood inside. "No known documents"
[0004]
On the other hand, recently, advertising characters and pictures have been painted on the left and right side walls of the luggage compartment, and advertising sheets and advertising panels have been extended to exhibit the advertising effect of the traveling truck. The specific mounting configuration of the advertisement sheet, etc., is to provide frames on the left and right side walls of the luggage compartment of the vehicle body, provide a space by depressing the inside of this frame, and fix the edge of the sheet displaying the advertisement medium to the frame. And the light source is provided in a space inside the sheet. Thereby, even when the vehicle is driven at night, there is provided an advertisement medium in which the displayed advertisement medium can be visually recognized in the same manner as during daytime. "For example, Patent Document 1"
[0005]
[Patent Document 1]
This is described in paragraph [0004] of JP-A-2001-287600 and FIG.
[0006]
When the advertisement sheet or the advertisement panel is extended on the left and right side wall surfaces of the luggage compartment of the truck bed, it can be easily attached to the flat left and right side surfaces. However, since the interior of the luggage compartment is depressed to form a space, the internal space of the luggage compartment is narrowed. Although not shown, the locking means and the opening / closing operation means generally protrude from the outer wall surface at the rear part of the luggage compartment, so that the appearance is not preferable. Further, it is not easy to extend an advertisement sheet or an advertisement panel. The mounting is complicated in that a frame assembly for clearing the locking means and the opening / closing operation means is protruded from the left and right double doors, and mounting means such as an advertisement sheet is provided on the outer surface of the frame assembly. Configuration. As a result, the advertisement sheet or the like projects greatly from the rear of the luggage compartment, and there are many problems in implementation.
[0007]
In view of this, an embodiment is conceivable in which the locking means protruding from the outer wall surface of the double door in the rear part of the luggage compartment is covered with a cover member to form a flat surface, and the closing operation means is disposed below the double door. . "For example, Patent Document 2"
[0008]
[Patent Document 2]
This is described in paragraph [0006] of JP-A-5-35424 and FIG.
[0009]
However, as described above, in the method in which the locking means attached to the outer surface of the double door is covered with the cover member to have a flat surface, the cover member projects greatly outside the door, and the cover member has a completely flat surface. The advertisement sticker is attached along the curved surface of the cover member, so that it looks distorted, furthermore, the means for extending the advertisement sheet is not disclosed, and the method of extension is unknown, and However, above all, there is no solution to the waterproof and water-resistant properties of the door.
[0010]
[Problems to be solved by the invention]
The present invention has been made in view of the problems of the double door device provided at the rear of the luggage compartment in the above-described truck, and aims at improving the water resistance and durability of the door and improving the aesthetic appearance with a smooth outer wall surface. In addition, the present invention provides a double door system that facilitates the expansion of an advertisement sheet.
[0011]
[Means for Solving the Problems]
In order to achieve the above object, there is provided a double door system at the rear of a truck according to claim 1 of the present invention, which is provided at the rear of a luggage compartment of a truck. In the device, the left and right double doors are a frame assembly formed in a rectangular shape with a lightweight material such as aluminum, an outer wall plate attached to an outer wall surface of the frame assembly, and an inner wall plate attached to an inner wall surface. The left and right doors are hinged between a movable hinge provided on the entire length of the outer edge vertical width of the left and right frame assemblies and a fixed hinge provided on the left and right edges of the rear opening frame of the luggage compartment, and the left and right frame assemblies are provided. The locking rod communicated with the inside between the upper and lower portions of the inner edge of the luggage compartment is characterized in that it is configured to be engaged and disengaged by a hook provided at the upper center of the luggage compartment by locking means provided at the lower center of the rear of the luggage compartment. To do.
[0012]
According to a second aspect of the present invention, there is provided a double door system at the rear of the truck, wherein an aluminum template is disposed on an inner wall surface of the frame assembly.
[0013]
According to a third aspect of the present invention, there is provided a double door system at the rear of the truck according to the first or second aspect, wherein a hook opening cylinder is provided on an outer wall of any one side of the left and right frame assemblies. A multi-stage hook piece is attached to the outer wall side of the other three sides of the frame assembly, and a locking core rod attached to one side of the advertising means is inserted and locked in the hook opening cylindrical body, and the other three sides of the advertising means are provided. The locking pieces attached to the frame assembly are locked in a state of being extended to the multi-stage hook pieces provided on three sides of the frame assembly.
[0014]
[Action]
According to the first aspect, since a space is formed inside the outer wall plate and the inner wall plate inside the frame body that is inside each of the double doors, the plywood is used as the core material even if water enters the inside. Since water is not removed, the water escapes, and the inside space is easily dried due to excellent air permeability. The entire surface of the door is flat, and the locking means is located in the lower part of the luggage compartment off the door. In addition, the advertisement sheet serving as an advertisement means can be easily spread on the flat surface of the double door, and the advertisement sheet can be attached so that only the advertisement sheet without the outer wall plate can be provided.
[0015]
According to the second aspect, since the double door has the aluminum mold plate disposed on the inner wall surface of the frame assembly, the strength of the door is increased, the waterproofness and durability are improved, and the weight is reduced.
[0016]
According to the third aspect, the locking rod attached to one side of the advertisement sheet serving as the advertising means is inserted and locked in the hook opening cylindrical body attached to one side of the frame assembly, and attached to the other three sides of the advertisement sheet. Since the locking piece is locked in a state of being extended on one of the multi-stage hook pieces provided on the other three sides of the frame, the advertisement sheet does not protrude to the outside of the double-sided door, and is in a flat state. Originally, it can be simply and reliably expanded.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the double door device 100 at the rear of the truck of the present invention will be described with reference to FIGS. First, the outline of the double door device 100 will be described. The truck 1 shown in FIG. 1 is, for example, a large truck, and a cubic luggage compartment 3 is mounted on a bed 1A. In this luggage compartment, an outer wall is formed by an outer wall plate 3X made of aluminum or iron plate, and an inner wall plate 3Y such as a veneer plate or an aluminum plate is adhered to an inner wall. In the rear portion 3A of the luggage compartment 3, for example, two-way doors 10, 11 are attached. The double doors 10 and 11 are provided with movable hinges 15 and 17 provided over the entire length of the left and right outer edges of the upper and lower edges of the left and right edges 3C and 3D in the rear opening frame 3B of the luggage compartment 3. It is hinged between fixed hinges 19, 19 attached to the part. The fixed hinges 19, 19 may be attached to the movable hinges 15, 17 at a vertical position near the middle abdomen of the movable hinges 15, 17; Slits are provided at vertical positions in the vicinity to engage the fixed hinges 19, 19. The left and right double doors 10 and 11 are communicated in a form in which lock bars 20 and 21 are buried between the upper and lower portions of the inner edges. Then, the doors 10 and 11 are locked by the locking means 25 provided at the lower center part C of the opening frame 3B at the rear part 3A of the luggage compartment to the locking members 27 and 29 provided at the upper center D of the luggage compartment 3. It is configured to be removed.
[0018]
Next, a detailed configuration of the double door device 100 will be described with reference to FIGS. First, the left and right double doors 10 and 11 are formed of a frame assembly 30 formed of a lightweight aluminum material in a square shape, and an outer wall plate “film sheet or aluminum plate and plywood plate” adhered to an outer wall surface 30A of the frame assembly 30. And a three-layer plate material of an aluminum plate "5" and an inner wall plate "for example, a laminated sheet of a plastic sheet and an aluminum plate" 7 adhered to the inner wall surface 30B. Of course, any material can be used for the outer wall plate 5 and the inner wall plate 7 as long as the material is a sheet material or a plate material having high waterproofness. The frame assembly 30 includes left and right vertical members 31 and 32 and upper and lower horizontal members 33 and 34. The vertical members 31 and 32 and the horizontal members 33 and 34 have a structure in which an internal space S is partitioned by a plurality of ribs R for weight reduction and strength.
[0019]
The left and right double doors 10 and 11 have movable hinges 15 and 17 integrally provided on the vertical members 31 and 31 at the outer edges of the left and right frame assemblies 30 over the entire vertical width from the outer wall surface 30A to the outside. On the other hand, fixed hinges 17, 19 are attached to the rear opening frame 3B of the luggage compartment 3 by bolts toward the rear of the luggage compartment at upper portions A and lower portions B of the left and right edges 3C, 3D. Of course, welding may be used. The movable hinges 15, 17 are hinged to the fixed hinges 19, 19 via support pins P. By the hinge connection, the left and right double doors 10 and 11 are configured to be able to pivot from the closed state of the solid line to the fully open position indicated by the broken line approaching the left and right side wall surfaces of the luggage compartment 3 as shown in FIG. I have.
[0020]
In the left and right doors 10 and 11, bearing holes 32A and 32A for connecting the locking rods 20 and 21 between the upper and lower portions are formed in the vertical members 32 and 32 at the inner edges of the left and right frame assemblies 30, respectively. Is provided. In this configuration, the vertical members 32, 32 are divided into a front member 32B and a rear member 32C, and semi-circular recesses 32D, 32E are provided on the joint surface. By connecting and fixing the front member 32B and the rear member 32C with bolts BT, one vertical member 32 and bearing holes 32A, 32A penetrating in the longitudinal direction are formed therein. Thus, the locking rods 20, 21 communicated with the bearing holes 32A, 32A of the vertical members 32, 32 at the inner edges of the left and right frame assemblies 30 are provided with locking means 25 provided at the lower center part C of the opening frame 3B of the container rear part 3A. Is disengaged by the hooks 27 and 29 provided at the upper center D of the luggage compartment 3 and the hooks 24 provided at the lower center C of the luggage compartment 3.
[0021]
The locking means 25 is known as a known means, and its specific configuration is, for example, as shown in FIG. 13, an operation lever 26, a bracket 26A for supporting the operation lever 26, and a support pin 26B. , A link mechanism Ro, and hooks 24, 24 attached to the left and right of the center lower part C. When the operating lever 26 of the locking means 25 is turned from the broken line position to the solid line position in the vertical and counterclockwise directions, the locking rods 20 and 21 slide in the vertical direction, and the left and right doors 10 and 11 are slid. Is unlocked (unlocked). Further, when the turning operation is performed from the solid line position to the broken line position, the unlocking (unlocking) and the locking (locking) are performed.
[0022]
The left and right double doors 10 and 11 are configured as described above, and the outer wall surface 30A and the outer wall plate 5, which are outside thereof, form a smooth surface on which there are no protrusions such as the locking means 25 and hinges. The present invention is devised so that in the double door device 100, the frame assembly 30 and the smooth outer wall surface 30A are skillfully used, and the advertising means 50 can be simply spread.
[0023]
Next, a configuration in which the advertising means 50 can be simply expanded will be described with reference to FIGS. A hook opening cylinder 36 is provided outside the upper and lower portions of each of the vertical members 32 which are the inner edges of the left and right frame assemblies 30. The hook opening cylindrical body 36 includes an engaging plate 36A that closely contacts the outer concave surface 32F of each vertical mold member 32, and a hook opening cylinder 36B provided at one end of the engaging plate 36A. , A circular internal space S1 and a slit S2. Further, multi-stage hook pieces 38 are respectively provided on the entire outer edges of the vertical members 31 outside the left and right frame assemblies 30, the entire upper edges of the horizontal square members 33, and the entire lower edges of the horizontal members 34. The multi-stage hook piece 38 has an outer concave surface 31E provided on the entire outer edge of each vertical member 31, an outer concave surface 33E provided on the entire upper edge of the horizontal member 33, and an outer concave surface provided on the entire lower edge of the horizontal member 34. 34E, a plurality of engaging plates 38A which are in close contact with each other, and a plurality of hooking pieces 38B projecting from the surface of each engaging plate 38A and juxtaposed.
[0024]
A plane between a hook opening cylinder 36 attached to the inner vertical member 32 and a multi-stage hook piece 38 attached to the outer vertical square member 31 and the upper and lower horizontal members 33, 34 in the left and right frame assemblies 30. Advertisement means “advertisement sheet material 50A, advertisement board material, etc.” 50 is spread. As shown in FIG. 12, a pair of the advertisement sheet materials 50A is prepared for left and right objects. As shown in FIGS. 8 and 9, the extension is achieved by inserting the locking core rod 51 attached to the inner edge into the hook opening cylinder 36B of the hook opening cylinder 36 and pulling it out from the slit S2. A hook 55 is attached to three edges of the advertising sheet material 50A via a rubber band 53, and each of the rubber bands 53 is stretched outward in three directions. The multistage hooking piece 38 attached to the horizontal members 33 and 34 is hooked on one hooking piece 38B and expanded.
[0025]
The double door system 100 according to the first embodiment of the present invention is configured as described above, and is used as follows. First, as shown in FIGS. 1, 2, and 5, a space So is formed inside a frame assembly 30 that is an interior of each of the doors 10 and 11, and a space between the outer wall plate 5 and the inner wall plate 7 is formed. Therefore, the inside of the frame 30 is easily dried. That is, even if water enters the interior, the door does not use a plywood as a core material, so the water escapes, the air permeability is excellent, and the internal space is easy to dry, water resistant and durable. Excellent in nature. Further, the entire surfaces of the doors 10 and 11 are flat surfaces, and the door lock mechanism “locking means 25” is also arranged in the lower part of the luggage compartment 3 that is separated from the doors 10 and 11. Is also excellent.
[0026]
Further, the advertisement means "advertising sheet material 50A or an advertising board material" 50 is pasted on the flat outer wall plate 5 of the doors 10 and 11, or the advertising sheet with a slight gap S3 from the outer wall plate 5 is formed. Can be extended. Further, the extension or the like of only the advertisement sheet 50A with the outer wall plate 5 removed can be easily performed. A method of extending the advertisement sheet 50A serving as the advertising means 50 will be described. First, as shown in FIGS. 8, 9, and 12, in the advertisement sheet, the locking core rod 51 attached to the inner edge of the advertisement sheet is inserted and locked in the hooking opening cylindrical body 36 on the inner edge of the frame assembly 30. The hooks 55 attached to the outer edge and the upper and lower edges of the sheet 50A are locked in a state of being extended to one of the multi-stage hook pieces 38 provided on the entire outer edge, the upper edge, and the lower edge of the frame assembly 30. . Thereby, the advertisement sheet can be smoothly, simply and reliably expanded without protruding from the outer walls of the double doors 10 and 11.
[0027]
The present invention is not limited to the double door device 100 of the first embodiment. The double door device 200 of the second embodiment shown in FIG. 14 may be used. In this embodiment, the left and right double-sided doors 10 and 11 are three-sided double-sided doors 10, 11 and 13. The schematic configuration will be described below. One of the two outer doors 10 and 11 connected to the rear portion 3A of the luggage compartment 3 by hinges 15, 17 and 19, and the right side of the third door 13 on the inner edge of the right door 11 in the drawing. The edges are connected by hinges 70. Locking rods 20 and 21 are connected to a joint G between the left edge 13A of the third door 13 and the inner edge 10A of the left door 10 so as to be buried therein. The locking means 25 provided on the left side of the lower center portion C of the opening frame 3B is configured to be engaged and disengaged by the locking members 27 and 29 provided on the left upper side of the center upper portion D of the luggage compartment 3. The door 11 is also provided with a locking rod 21 'and a locking means 25.
[0028]
According to the double door system 200 of the second embodiment, when it is desired to fully open the rear portion 3A of the luggage compartment 3, the three double doors 10, 11, 13 are fully opened. When partially loading and unloading the luggage in the luggage compartment, only the central door 13 is opened and closed. In addition, advertising means 50 are separately and independently attached to the three external doors on the three outer wall surfaces in the same configuration as in the first embodiment. Therefore, the opening / closing operation of the double doors 10, 11, 13 is not hindered. In addition, when the door is closed, the three doors become flat and smooth, and the three advertising sheets and the like spread on the surface are connected to one and displayed as one large advertising message. You.
[0029]
Further, the double door system 300 of the third embodiment shown in FIG. 15 may be used. In this embodiment, in each of the above double door systems 100 and 200, an aluminum mold plate 60 is disposed in place of the inner wall plate 7 such as an aluminum plate stretched on the inner wall surfaces of the left and right frame assemblies 30. Things. The aluminum template 60 includes an inner body 61 and an outer board 63, and a number of ribs 65 bridging the inner walls of these spaces. A unit having a predetermined length is formed so that the entire inner wall surface of the frame body 30 is stretched, and a required number of the connecting portions 67 are connected in series to form a wall surface. The outer wall plates 5 are appropriately attached to the outer wall surfaces of the left and right frame assemblies 30 as necessary. A plurality of holes H for drainage are formed in the lower part of the frame body 30.
[0030]
According to the double door device 300 of the third embodiment, since the double doors 10 and 11 have the aluminum template 60 disposed on the inner wall surface of the frame assembly 30, the double doors 10 and 11 have increased strength and waterproofness. Improvements in durability and drainage, weight reduction, etc. are achieved.
[0031]
The present invention is not limited to the above embodiments. For example, although the double door device and the triple door device are illustrated as the double door device, a multi-plate configuration (for example, a four-plate configuration) may be used, or a configuration in which a part of a plurality of doors is opened and closed (for example, A configuration in which one of the two doors opens one side) may be used. Further, in each of the double-sided door devices 100 and 200, the left and right frame assemblies 30 constituting the double-sided door are not limited in terms of material and structure to lightweight members such as aluminum. If the weight is slightly increased, the frame body 30 using an iron-made material may be used. The same operation and effect can be achieved by this material change. Also, as the material of the inner wall plate 7 and the outer wall plate 5, various materials having water resistance and waterproofness can be applied. Further, in the frame assembly 30, at least only the inner wall plate 7 may be stretched, and if necessary, a two-layer structure of the inner wall plate 7 and the outer wall plate 5 or a two-layer structure of the inner wall plate 7 and the advertisement sheet 50A may be used. Or a three-layer structure of the inner wall plate 7, the outer wall plate 5, and the advertisement sheet 50A.
[0032]
Also, various configurations such as a seat configuration and a thin plate configuration can be applied to the hinge configuration of the fixed hinge 19 and the movable hinges 15 and 17, the configuration of the locking unit 25, and the advertising unit 50. Also, various types of structures and forms can be applied to the hanging means for extending the advertising means 50 to the doors 10 and 11. For example, as shown in FIG. 16, the attachment position of the locking core rod 51 and the hook 55 may be changed. Furthermore, the mounting positional relationship between one locking core 51 and three hooks 55 can be changed to any free position on the four sides. As a matter of course, the mounting positions of the hook opening cylinder 36 and the multi-stage hook piece 38 attached to the frame assembly 30 are also changed in relation to the mounting positions of the locking core rod 51 and the hook 55.
[0033]
【The invention's effect】
As described in detail above, according to the double door device of the first aspect of the present invention, a space is formed between the outer wall plate and the inner wall plate inside the frame assembly that is inside each double door. , And the inside is easily dried. Further, unlike a conventional door, a plywood is not used as a core material, so that it is excellent in water resistance and durability. The entire surface of the door is flat, and the locking means is located in the lower part of the luggage compartment off the door. Further, it is possible to easily attach the advertising means to the flat surface of the double door and extend the advertising sheet.
[0034]
According to the second aspect of the present invention, since the aluminum door is disposed on the inner wall surface of the frame assembly, the door is improved in strength, waterproofness, durability, drainage, and weight are reduced.
[0035]
According to the third aspect, the locking rod attached to one side of the advertisement sheet serving as the advertising means is inserted and locked in the hook opening cylindrical body attached to one side of the frame assembly, and attached to the other three sides of the advertisement sheet. Since the locking piece is locked in a state of being extended on one of the multi-stage hook pieces provided on the other three sides of the frame, the advertisement sheet does not protrude to the outside of the double-sided door, and is in a flat state. Originally, it can be simply and reliably expanded.
[Brief description of the drawings]
FIG. 1 shows the first embodiment of the present invention and is a perspective view of a double door device at a rear portion of a truck.
FIG. 2 shows the first embodiment of the present invention, and is a front view of the double door device at the rear of the truck.
FIG. 3 shows the first embodiment of the present invention, and is a plan view of the double door device at the rear of the truck.
FIG. 4 shows the first embodiment of the present invention and is a partial view of the double door device.
FIG. 5 shows the first embodiment of the present invention and is a partial view of the double door device.
FIG. 6 shows the first embodiment of the present invention, and is a perspective view of the left side door.
FIG. 7 shows the first embodiment of the present invention, and is a perspective view of a right side door.
FIG. 8 shows the first embodiment of the present invention, and is a cross-sectional view of the left side door.
FIG. 9 shows the first embodiment of the present invention, and is a cross-sectional view of a right-side door;
FIG. 10 shows the first embodiment of the present invention, and is an upper cross-sectional view of the framework.
FIG. 11 shows the first embodiment of the present invention and is a lower sectional view of the framework.
FIG. 12 shows the first embodiment of the present invention, and is a perspective view of an advertisement unit.
FIG. 13 shows the first embodiment of the present invention, and is a front view and a plan view of a locking means.
FIG. 14 shows the second embodiment of the present invention and is a front view of a three-piece double door system.
FIG. 15 shows the third embodiment of the present invention, and is a cross-sectional view of a double door using an aluminum mold.
FIG. 16 is a perspective view showing a modification of the advertising means.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Truck 1A Carrier 3 Luggage room 3A Rear part 3B Rear opening frame 3C, 3D Left and right edge A Upper part B Lower part C Central lower part D Upper part 5 Outer wall plate 7 Inner wall plate 10, 11, 13 Kannon door 15, 17 Movable hinge 19 Fixed hinge 20 , 21 Locking rod 25 Locking means 26 Operating lever 26A Bracket 26B Support pin 27, 29 Hook 30 Frame assembly 30A Outer wall surface 30B Inner wall surface 31, 32 Vertical member 31A Movable hinge 32A Bearing hole 32B Front member 32C Rear member 32D, 32E Semicircular concave portion 33E Outer concave surface 33, 34 Horizontal member 34E Outer concave surface 36 Hook opening cylinder 36A Engagement plate 36B Hook open cylinder 38 Multi-stage hook piece 38A Engagement plate 38B Hook piece 50 Advertising means 50A Advertising sheet 53 Rubber band 55 Hook body BT Bolt P Support pin S Internal space S1 Internal space S2 Slit R Rib 60 Aluminum template 1 the inner surface 63 outer surface plate 65 rib 67 forming part 100, 200, 300 Kannon door device

Claims (3)

A double door device provided at the rear of a luggage compartment of a truck, wherein left and right double doors are formed of a rectangular frame made of lightweight material such as aluminum, and an outer wall plate attached to an outer wall surface of the frame assembly. The left and right doors are composed of a movable hinge provided on the entire length of the outer edge of the left and right frame assembly vertically and vertically, and a fixed hinge provided on the left and right edges of the rear opening frame of the luggage compartment. The locking rod, which is hinge-connected between the upper and lower portions of the left and right frame members, communicates with the inside of the upper and lower portions of the left and right frame members, and is provided at a locking device provided at the upper center of the luggage compartment by a locking means provided at the lower center of the rear portion of the luggage compartment. A double door device at the rear of a truck, wherein the door device is configured to be disengaged. 2. The double door apparatus according to claim 1, wherein an aluminum template is disposed on an inner wall surface of said frame body. A hook opening cylinder is attached to the outer wall of any one side of the left and right frame assemblies, and a multi-stage hook piece is attached to the other three outer walls of the left and right frame assemblies, and is attached to one side of the advertising means. It relates to a state in which a stop rod is inserted and locked in the above-mentioned hook opening cylindrical body, and locking pieces attached to the other three sides of the advertising means are extended to the multi-stage hook pieces provided on the three sides of the frame assembly. 3. The double door device according to claim 1, wherein the door is stopped.

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