JP5345337B2 - Truck rear door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rear door for a truck capable of reducing the number of kinds of rail materials, and capable of adjusting a width and enhancing strength. <P>SOLUTION: In the rear door for the truck comprising a pair of door bodies, in the door body, a width adjustment member 140 comprising an extrusion shape material formed of an aluminum alloy is installed between a panel and an outer frame, and the width adjustment member 140 comprises a body 65 having a width adjustment reference surface 65c and a projection 60 projected in a direction opposite to the width adjustment reference surface 65c. A width adjustment projection 69 is formed at the projection 60, and rail flanges 51, 52 are formed on a side surface of the panel. Width adjustment fitting recesses 89 fitted to the width adjustment fitting projection 69 are formed on the rail flanges 51, 52. The problem can be solved by using the rear door for the truck in which at least one of the width adjustment fitting projection 69 or the width adjustment fitting recess 89 comprises a plurality of projections 11, 13 or the recesses 12, 14. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a truck rear door, and more particularly to a truck rear door that facilitates width adjustment.

  The van type truck has a box-shaped luggage compartment at the rear, and the luggage compartment is provided with an opening (gate structure) for taking in and out the luggage on the rear side. Further, the opening (gate structure) is provided with a truck rear door including a pair of left and right doors that can be opened and closed in a double door manner.

As the rear door for trucks, a door in which an aluminum plate or a steel plate is bonded to synthetic wood has been mainly used. However, in recent years, truck rear doors made of aluminum panel materials have become widespread and standardized in order to reduce weight, improve aesthetics, and resist corrosion.
For example, Patent Documents 1 and 2 disclose a rear door for a truck constituted by a panel obtained by connecting a plurality of rectangular rail members made of extruded aluminum in the left-right direction.
According to this method, the weight reduction, the aesthetic improvement, and the corrosion resistance are excellent, and the vertical dimension of the truck rear door can be easily changed by changing the cutting length of the aluminum extruded profile rail material. However, since the rail members having substantially the same horizontal dimension are used, it is difficult to accurately cope with the change in the horizontal dimension of the truck rear door.

Normally, the opening (gate structure) of a van type truck is different for each bodybuilder (user), and there are various sizes.
In the case of a rear door structure in which strip-like panels (aluminum molds) are arranged side by side, it is necessary to combine multiple rail materials with different dimensions in order to make the width of the rear door the width specified by each bodybuilder (user) There are several types of rails with different dimensions. This requires a large amount of molds and increases the manufacturing cost.

  Patent Document 3 discloses a truck rear door including a frame body and a rail material incorporated in the frame body, and is said to be able to be manufactured accurately and easily in both vertical and horizontal dimensions. . However, when incorporating the rail material into the frame, it is necessary to cut the rail material to adjust the width. For example, in this cutting process, it is necessary to cut the door with a width of several millimeters over a length of 2500 mm, which is technically difficult, so the manufacturing process becomes complicated and the manufacturing cost increases.

FIG. 13 is a cross-sectional view showing an example of a state in which a rail member and a frame portion constituting a door body of a conventional truck rear door are combined.
FIG. 13A is a cross-sectional view showing a case where the original rail material is used, and the rail material 220 has an end 220 d fitted to the panel fitting opening 70 of the frame portion 131. On the back side, the rail member 220 and the frame portion 131 are fixed by rivets 150. In many cases, the fixing of the rail material to the frame material is performed by rivet fastening, but generally rivet fastening is performed only on the back side (inside side) of the van type truck because it impairs the appearance on the front side of the van type truck. .
Further, an attachment member 230 provided with a rubber packing 231 is attached to the frame portion 131.

  The door body of the truck rear door formed in this way often has a gap 239 between the rail member 220 and the frame portion 131 in order to adjust the left and right width dimensions. In this case, the rail member 220 and the frame portion are formed. Due to insufficient adhesion with 131, the strength is insufficient.

  FIG. 13B is a cross-sectional view showing a case where the width of the door body is widened by arranging the spacer 240. By inserting a spacer 240 such as rubber or resin product, the width of the door body can be widened to obtain a door body having a suitable width. However, it is necessary to process the width of the spacer 240 to an appropriate width, which complicates the manufacturing process and increases the material cost.

FIG.13 (c) is sectional drawing explaining a cutting process, FIG.13 (d) is sectional drawing which shows the case where the edge part of a rail material is cut | disconnected and the width | variety of a door body is shortened.
The rail member 220 is formed in a hollow structure and can be easily cut at an arbitrary position. For example, as shown in FIG.13 (c), the width | variety of a door body can be narrowed by cut | disconnecting with the cutting line 242, and it can be set as a door body of a suitable width | variety as shown in FIG.13 (d). However, since this cutting needs to be accurately performed in the longitudinal direction in millimeters, the manufacturing is difficult and the manufacturing cost is deteriorated.

  FIG. 14 is an assembled view of another example of a rail material constituting a door body of a conventional truck rear door. The rail member 221 has an end 221 d fitted into the panel fitting opening 70 of the frame 131. Further, the rail member 221 and the frame part 131 are fixed by a rivet 150. Further, an attachment member 230 provided with a rubber packing 231 is attached to the frame portion 131 on the side opposite to the panel fitting opening 70 of the frame portion 131.

The end portion 221d of the rail member 221 has insufficient strength because it does not sufficiently overlap with the frame portion 131, and may be easily broken by some impact. Moreover, when the rigidity of the end portion 221d of the rail member 221 is weak, there is a high possibility that the rear door swells due to the reaction force of the rubber packing 231 or rainwater enters. In order to prevent this, it is not preferable to reinforce the surface side with a rivet or the like because it impairs the aesthetics of the design and may cause rainwater to enter from the rivet portion.
JP-A-8-310246 JP-A-11-229724 JP 2005-329762 A

  The present invention has been made in view of the above circumstances, and can reduce the manufacturing cost by reducing the type of rail material made of an extruded shape made of an aluminum alloy, can easily adjust the width, and has strength. An object of the present invention is to provide a truck rear door with improved performance.

In order to achieve the above object, the present invention employs the following configuration. That is,
The truck rear door according to the present invention is attached to the rear opening of the truck's cargo compartment, and the left and right ends can be pivoted by a hinge mechanism, and the double-sided opening type truck comprising a pair of left and right doors that can be opened and closed at the center. The door body is composed of a flat panel portion and an outer frame portion into which the outer edge portion of the panel portion is fitted, and the panel portion has a rail material made of an extruded shape member made of aluminum alloy. The rail member is arranged between the side rail disposed near the hinge mechanism, the center rail disposed near the center, and between the side rail and the center rail. At least one middle rail, and the outer frame portion is formed by combining a frame portion made of an extruded shape made of an aluminum alloy, The panel is provided with a panel fitting opening having a U-shaped cross-section into which the outer edge of the panel portion is fitted, and the panel fitting with which the side surface of the panel portion is abutted is provided in the panel fitting opening. A contact surface, a front-side frame flange disposed to face the front surface of the panel portion, and a back-side frame flange disposed to face the back surface of the panel portion. A width adjusting member made of an extruded material made of an aluminum alloy is provided between at least one of the side surface near the hinge mechanism of the rail or the side surface near the center portion of the center rail and the panel insertion opening of the frame portion. Installed,
The width adjustment member is protruded in a direction opposite to the width adjustment reference plane from the main body, and a main body having a width adjustment reference surface that is in contact with a panel abutting surface of the panel fitting opening of the frame portion. A front surface side protruding portion and a back surface side protruding portion, and the front surface side protruding portion is formed with a fitting protrusion for width adjustment, and is close to the side surface of the side rail near the hinge mechanism or the center portion of the center rail. A front-side rail flange and a back-side rail flange are formed on at least one of the side surfaces of the front-side rail flange, and the width-adjusting fitting is fitted to the width-adjusting fitting convex portion on the back side A fitting recess is provided, and at least one of the width adjustment fitting projection or the width adjustment fitting recess is composed of a plurality of projections or recesses provided at regular intervals,
The side rails and / or the back rail rail flanges of the center rail and the back side protrusions of the width adjusting members are arranged in this order or in reverse order on the inner surface of the back side frame flange of the frame part. The rear frame flange of the frame portion and the side rail and / or the rear rail flange of the center rail and the width by rivets or bolting through the rear frame flange, the rear rail flange and the rear projection. The back side protrusion of the adjustment member is fixed, and the width adjustment member and the back side rail flange are fixed inside the panel fitting opening of the frame part,
Inserting the front side rail flange of the side rail and / or the center rail between the front side protruding portion of the width adjusting member fixed to the inside of the frame portion and the front side frame flange of the frame portion, The front-side rail flange surface and the front-side frame of the frame part are formed by fitting the width-adjusting fitting concave part of the front-side rail flange and the width-adjusting fitting convex part of the front side protruding part of the width adjusting member. It is characterized in that the flange is overlapped and contacted .

The truck rear door of the present invention is
A double door type truck rear door that is attached to a rear opening of a cargo compartment of a truck, and that has a pair of left and right doors whose left and right ends can be pivoted by hinge mechanisms and whose central part can be opened and closed. The body is composed of a flat panel portion and an outer frame portion into which the outer edge portion of the panel portion is fitted, and the panel portion is configured by laterally connecting a rail material made of an aluminum alloy extruded profile. The rail material includes a side rail disposed near the hinge mechanism, a center rail disposed near the center, and at least one middle disposed between the side rail and the center rail. A frame portion made of an aluminum alloy extruded profile, and the frame portion includes an outer edge portion of the panel portion. A panel fitting opening having a U-shaped cross-section is provided, and the panel fitting opening has a panel abutting surface against which a side surface of the panel part is abutted, and a surface of the panel part. A front surface side frame flange disposed so as to be provided, and a back surface side frame flange disposed so as to face the back surface of the panel portion,
Width adjustment made of an extruded shape member made of aluminum alloy between at least one of the side rail near the hinge mechanism or the side near the center of the center rail and the panel fitting opening of the frame portion The parts are installed,
The width adjustment member is protruded in a direction opposite to the width adjustment reference plane from the main body, and a main body having a width adjustment reference surface that is in contact with a panel abutting surface of the panel fitting opening of the frame portion. A front surface side protruding portion and a back surface side protruding portion, and the front surface side protruding portion is formed with a fitting protrusion for width adjustment, and is close to the side surface of the side rail near the hinge mechanism or the center portion of the center rail. A front-side rail flange and a back-side rail flange are formed on at least one of the side surfaces of the front-side rail flange, and the width-adjusting fitting portion is fitted to the front-side rail flange on the front surface side . A fitting recess is provided, and at least one of the width adjustment fitting projection or the width adjustment fitting recess is composed of a plurality of projections or recesses provided at regular intervals,
The side rails and / or the back rail rail flanges of the center rail and the back side protrusions of the width adjusting members are arranged in this order or in reverse order on the inner surface of the back side frame flange of the frame part. The rear frame flange of the frame portion and the side rail and / or the rear rail flange of the center rail and the width by rivets or bolting through the rear frame flange, the rear rail flange and the rear projection. The back side protrusion of the adjustment member is fixed, and the width adjustment member and the back side rail flange are fixed inside the panel fitting opening of the frame part,
The front side protrusion of the width adjusting member is inserted between the front side frame flange of the frame part and the front side rail flange of the side rail and / or the center rail, and the front side protruding part of the width adjusting member The width adjustment fitting convex portion and the width adjustment fitting concave portion of the surface side rail flange are fitted together, and the surface side rail flange surface and the surface side frame flange of the frame portion are overlapped to be in contact with each other. characterized in that it comprises Te.

  The rear door for a truck according to the present invention is characterized in that a groove portion for a sealing material is provided on a width adjustment reference surface of the width adjusting member, and a sealing material is disposed in the groove portion for the sealing material.

  The rear door for a truck according to the present invention is characterized in that a back side protruding portion of the width adjusting member is longer than a front side protruding portion.

According to the above configuration, the rear door for a truck that can reduce the manufacturing cost by reducing the types of rail materials made of an extruded shape made of aluminum alloy, can easily adjust the width, and has improved strength. Can be provided.
Moreover, since these are fixed by rivets or bolts that penetrate the back side frame flange of the frame part, the back side protruding part of the width adjusting member, and the back side rail flange of the side rail and / or the center rail, the door body It is possible to increase the strength and improve the durability. Further, since the rivet or bolt is located on the back side of the frame portion, rainwater or the like does not enter the inside of the truck's cargo compartment.

1A and 1B are views showing an example of a truck rear door according to an embodiment of the present invention. FIG. 1A is a plan view and FIG. 1B is a cross-sectional view.
As shown in FIG. 1 (a), a truck rear door 100 according to an embodiment of the present invention includes a pair of left and right door bodies 101, 102 attached to a rear opening 105 of a truck luggage compartment. It is a rear door. The door bodies 101 and 102 can be pivoted by hinge mechanisms 104 at both the left and right ends, and the center portion can be opened and closed.

<Door>
The door bodies 101 and 102 are provided with four rods 106 extending in the vertical direction. The rod 106 is operated by a handle 108 to control the opening and closing of the door bodies 101 and 102. Specifically, the locking projections 110 are provided above and below the rear opening 105 of the truck's cargo compartment, and the engagement portion provided at the tip of the rod 106 is engaged with the locking projection 110. By being stopped, the door bodies 101 and 102 are closed. On the contrary, the engagement part provided at the tip of the rod 106 is removed from the locking projection 110 to open the door bodies 101 and 102.

  The door bodies 101 and 102 include a flat panel portion 107 and an outer frame portion 129 that fits the outer edge portion 90 of the panel portion 107. Since the door bodies 101 and 102 are a pair of left and right and have substantially the same configuration, the door body 101 will be described in detail below as an example.

<Outer frame>
The outer frame portion 129 constitutes an upper, lower, left, and right outer frame, and is formed by combining a frame portion 130 made of an extruded shape member made of aluminum alloy. That is, the outer edge portion 90 of the panel portion 107 is fitted to the frame member 130.

<Panel section>
As shown in FIG. 1, the panel unit 107 is configured by horizontally connecting rail members 112. The rail member 112 includes at least one side rail 113 disposed near the hinge mechanism 104 of the door body 101, a center rail 120 disposed near the center, and between the side rail and the center rail. Two or more middle rails 115. Specifically, in FIG. 1, the panel portion 107 is composed of five rail members, one side rail 113, three middle rails 115, and one center rail 120.

  Each rail material 112 is made of an extruded shape made of an aluminum alloy. For example, a 6000 series aluminum alloy that has been subjected to chemical conversion treatment such as alumite treatment is used to form an extruded shape having a hollow structure, which is cut into a predetermined length to form a strip shape. Since the rail material 112 having such a material and structure is used, the panel portion 107 can be excellent in corrosion resistance, strength, and lightness.

FIG. 2 is a cross-sectional view showing an example of a side rail. The side rail 113 is formed with a hinge attachment portion 132 to which the hinge mechanism 104 is attached on one side surface, and a panel connecting portion 133 is formed on the other side surface side.
FIG. 3 is a cross-sectional view showing an example of a middle rail. In the middle rail 115, panel connecting portions 133 are formed on one side and the other side.

FIG. 4 is a cross-sectional view showing an example of the center rail. A panel connecting portion 133 is formed on the side surface of the center rail 120.
Further, a width adjusting member mounting opening 80 is formed on the other side surface side of the center rail 120, and a front surface side rail flange 51 and a back surface side rail flange 52 are formed. The end surfaces of the front-side rail flange 51 and the back-side rail flange 52 are end surfaces 120e that abut against the width adjusting member.
The surface 120a of the front-side rail flange 51 is flush with the surface 120a of the center rail 120. The back surface 80b of the front-side rail flange 51 is an inner wall surface of the width adjusting member mounting opening 80, and a width adjusting fitting recess 89 in which a plurality of recesses 12 having a comb shape in cross section are formed at regular intervals. Is provided.
A front surface 80 a of the back surface side rail flange 52 is an inner wall surface of the width adjusting member mounting opening 80. Moreover, the back surface 120b of the back surface side rail flange 52 is shaved with a constant depth to form a recess 90c. Further, the rear surface 120b of the rear surface side rail flange 52 is provided with a width adjusting fitting concave portion 89 in which a plurality of concave portions 14 having a corrugated cross section are formed at regular intervals.
The width adjusting fitting concave portion 89 is fitted in the width adjusting fitting convex portion 69 of the width adjusting member 140 as will be described in detail in the description of the combination described later.

<Frame part>
FIG. 5 is a cross-sectional view showing an example of the frame portion. The frame part 130 is formed of an aluminum extruded profile and has a hollow structure.
The frame portion 130 is provided with a panel fitting opening 70 having a U-shaped cross-sectional shape into which the outer edge 90 of the panel portion 107 (here, the center rail 120) is fitted. A panel abutting surface 70c against which the side surface 120e of the panel unit 107 is abutted is provided.

Further, the frame portion 130 includes a front surface side frame flange 71 disposed so as to face the front surface 120a of the panel portion 107, a back surface side frame flange 72 disposed so as to face the back surface 120b of the panel portion 107, Is provided.
When the outer edge 90 of the center rail 120 is fitted into the panel fitting opening 70, the back surface 70b of the front surface side frame flange 71 faces the front surface 120a of the front surface side rail flange 51, and the surface of the back surface side frame flange 72 70 a faces the back surface 120 b of the back surface side rail flange 52.

  A buffer member recess 73 is formed in the frame portion 130, and the buffer member is disposed in the buffer member recess 73 so that the door body 101 can be prevented from directly colliding with the rear side opening 105. Has been.

  In addition, when the frame part 130 is arranged so as to cover the upper and lower outer edge parts 90 of the panel part 107, the upper and lower openings of the panel part 107 made of a hollow extruded shape member made of aluminum can be closed. , Can prevent the ingress of rainwater.

<Width adjustment member>
FIG. 6 is a cross-sectional view showing an example of the width adjusting member. The width adjustment member 140 includes a main body portion 65 having a width adjustment reference surface 65c that is in contact with the panel abutting surface 70c of the panel fitting opening 70 of the frame portion 130, and the main body portion 65 opposite to the width adjustment reference surface 65c. It consists of the protrusion part 60 protruded to the side, and the width adjustment fitting convex part 69 formed in the protrusion part 60.

<Projection part, width adjustment fitting convex part>
The width adjustment member 140 is provided with an opening 66, and the protrusion 60 includes a front surface side protrusion 61 disposed on the front surface side and a back surface side protrusion 62 disposed on the back surface side.
On the surface 60a of the front side protruding portion 61, a width adjusting fitting convex portion 69 composed of two convex portions 11 whose cross-sectional shape is a comb shape is formed. Further, the back surface 66 b of the front surface side protruding portion 61 is an inner wall surface of the opening 66.
Further, the front surface 66a of the rear surface side protruding portion 62 is an inner wall surface of the opening 66, and a width adjusting fitting convex portion 69 formed by one convex portion 13 having a corrugated cross section is formed. Moreover, the back surface 60b of the back surface side protrusion part 62 is made into the surface which touches the surface 70a of the back surface side frame flange 72 of the frame part 130 although it mentions later.

  Note that the rear surface side protruding portion 62 is formed longer than the front surface side protruding portion 61. Thereby, after combining the center rail 120, the width adjustment member 140, and the frame part 130, these can be joined from the back side using the rivet 150. Moreover, since the surface side is a structure which does not rivet fasten for the reason mentioned later, the length of the surface side protrusion part 61 can be shortened, and the weight reduction of the width adjustment member 140 can be achieved.

  The width adjustment fitting convex portion 69 of the width adjusting member 140 is fitted to the width adjustment fitting concave portion 89 of the center rail 120. At this time, by forming the width adjustment fitting convex portion 69 on each of the front surface side protruding portion 61 and the back surface side protruding portion 62, the accuracy of width adjustment can be improved and the combination can be made more firmly.

<Combination of center rail, width adjustment member and frame part>
FIG. 7 is a diagram illustrating an example of a combination of a center rail, a width adjusting member, and a frame portion. Between the frame part 130 and the center rail 120, a width adjusting member 140 made of an extruded shape made of an aluminum alloy is disposed.
The width adjustment reference surface 65 c is in contact with the panel abutting surface 70 c of the frame portion 130.

The front surface 120 a of the front surface side rail flange 51 of the center rail 120 is in contact with the back surface 70 b of the front surface side frame flange 71. Further, the rear surface 80 b of the front surface side rail flange 51 is in contact with the front surface 60 a of the front surface side protruding portion 61 of the width adjusting member 140.
The back surface 120 b of the back surface side rail flange 52 of the center rail 120 is in contact with the surface 66 a of the back surface side protruding portion 62 of the width adjusting member 140. Further, the back surface 60 b of the back surface side protruding portion 62 of the width adjusting member 140 is in contact with the surface 70 a of the back surface side frame flange 72 of the frame portion 130.

On a pair of surfaces that are in contact with each other between the center rail 120 and the width adjusting member 140, a width adjusting fitting convex portion and a width adjusting fitting concave portion are formed, respectively.
That is, the width adjustment fitting convex portion 69 is formed on the surface 60 a of the front surface side protruding portion 61 of the width adjusting member 140, and the width adjustment fitting concave portion 89 is formed on the back surface 80 b of the front surface side rail flange 51.
Further, a width adjustment fitting convex portion 69 is formed on the front surface 66 a of the rear surface side protruding portion 62 of the width adjusting member 140, and a width adjustment fitting concave portion 89 is formed on the rear surface 120 b of the rear surface side rail flange 52. .

The width-adjusting fitting concave portion 89 is configured by forming a plurality of concave portions 12 having a comb-shaped cross section and a plurality of concave portions 14 having a corrugated cross section at regular intervals.
Therefore, it is possible to select whether the convex portions 11 and 13 of the width adjusting fitting convex portion 69 of the width adjusting member 140 are fitted to the concave portions 12 and 14 at any position, for example, at the deepest position. When the recesses 12 and 14 are fitted, the width adjustment reference surface 65c can be disposed on the most side surface side, and the width of the door body 101 can be minimized.
Conversely, when the recesses 12 and 14 at the shallowest positions are fitted, the width adjustment reference surface 65c can be disposed on the other side surface most, and the width of the door body 101 can be maximized.

By controlling the distance between the recess 12 and the recess 14 formed in the width adjusting fitting recess 89 in millimeters, the width can be adjusted in millimeters.
As described above, the width adjustment of the door body 101 is performed by first selecting the number of middle rails 150 according to the size of the rear opening 105 and adjusting the general width of the door 101, and then adjusting the width adjustment member 140. Can be finely adjusted by controlling the position of the width adjustment fitting convex portion 69 with respect to the width adjustment fitting concave portion 89, so that the door body 101 having the optimum width can be obtained.

The shape of the width adjusting fitting concave portion 89 and the width adjusting fitting convex portion 69 may be any shape that can be easily combined and can be accurately adjusted in width, and the cross-sectional shape is a comb shape or a wave shape. Any shape can be adopted without being limited thereto. For example, the cross-sectional shape can be a mountain shape. Thereby, while being able to connect easily and correctly, it can connect firmly.
In any case, the pitch is preferably 2 mm or more and 10 mm or less, and more preferably 2 mm or more and 6 mm or less. The depth is preferably 0.5 mm or more and 15 mm or less, and more preferably 0.5 mm or more and 2 mm or less. Thereby, when making it fit, it is easy to combine, and the width can be adjusted accurately, and the rail member 112 and the width adjusting member 140 can be firmly joined.

  The width adjustment fitting convex portions 69 formed on both the front surface side protruding portion 61 and the back surface side protruding portion 62 may have different cross-sectional shapes. Thereby, while being able to connect easily and correctly, it can connect more firmly.

When combined with at least one of the width adjustment fitting convex portion 69 of the width adjustment member 140 and the width adjustment fitting concave portion 89 of the center rail 120, the distance from the width adjustment reference surface 65c is increased stepwise. It is preferable that a plurality of convex portions or concave portions provided at regular intervals are provided.
Thereby, width adjustment can be easily performed in steps by shifting the other fitting position. Thereby, the width | variety of the door body 101 can be expanded accurately and can be narrowed easily.

  It is preferable that such a width adjusting fitting convex portion 69 is formed on at least one of the front surface side protruding portion 61 and the back surface side protruding portion 62 of the width adjusting member 140. If it is formed on at least one of the front surface side protruding portion 61 and the back surface side protruding portion 62, the width can be adjusted easily and accurately. It may be formed in both, and when formed in both, it can connect more firmly.

  With the above configuration, by changing the position of the width adjustment fitting convex portion 69 to be fitted to the width adjustment fitting concave portion 89 of the outer edge portion 90 on the other side of the center rail 120, the width can be accurately and easily determined. The position from the adjustment reference plane 65c can be set in stages, and the position of the center rail 120 with respect to the frame part 130 can be changed.

  As shown in FIG. 7, the back surface 120 b of the back surface side rail flange 52 of the center rail 120 is in contact with the surface 66 a of the back surface side protruding portion 62 of the width adjusting member 140, and the back surface side protruding portion 62 of the width adjusting member 140. When the back surface 60b of the frame is in contact with the front surface 70a of the back surface side frame flange 72 of the frame portion 130, the position of the connecting plate 81 that connects the front surface 120a and the back surface 120b of the center rail 120 is closer to the end side. The strength of the end portion of the door body 101 provided with the width adjusting member 140 can be improved.

<Joint>
The method of joining the rail material 112, the width adjusting member 140, and the frame portion 130 is not particularly limited, but can be selected from rivets, bolting, adhesives, and the like.
For example, as shown in FIG. 7, it is preferable that the center rail 120, the width adjusting member 140 and the frame portion 130 are combined and then joined using the rivet 150. By joining in this way, the strength of the door body 101 can be increased and the durability can be improved. At this time, the rivet 150 is preferably disposed on the inner surface side. When the rivet 150 is disposed on the front surface side, there is a risk that rainwater or the like may enter the inside of the cargo compartment from the hole provided for disposing the rivet 150. In order to prevent this, if a sealing material or the like is disposed on the rivet 150 so that rainwater or the like does not enter the cargo compartment of the truck, the product cost is increased.

  In addition, you may join using an adhesive instead of the rivet 150. FIG. The rivet 150 inevitably has a protruding portion, which reduces the space inside the truck's cargo compartment. In the case of using an adhesive, such a fear does not occur. The adhesive can be applied to a contact surface portion between the center rail 120 and the width adjustment member 140 or a contact surface portion between the width adjustment member 140 and the width adjustment member 140. Moreover, you may provide the recessed part for adhesive agent application in these contact surface parts.

(Embodiment 2)
FIG. 8 is a cross-sectional view showing another example of a door body used for a truck rear door according to an embodiment of the present invention. This door body has a combined portion including a center rail 121, a width adjusting member 141, and a frame portion 131. FIG. 8A is a diagram when the width is minimized, and FIG. 8B is a diagram when the width is maximized.
The configuration is the same as that of the first embodiment except that the structure of the center rail 121, the width adjusting member 141, and the frame portion 131 is different. The same members as those in the first embodiment are denoted by the same reference numerals.

As in the first embodiment, a width adjusting member 141 made of an extruded shape made of an aluminum alloy is disposed between the frame portion 131 and the center rail 121.
The width adjustment reference surface 65 c is in contact with the panel abutting surface 70 c of the frame portion 131.

Similar to the frame portion 130 used in the first embodiment, the frame portion 131 is provided with a panel fitting opening 70 and is configured to fit the outer edge portion 90 of the center rail 121 (panel portion 107). Yes.
Further, a cover portion 131a is formed on the front surface side of the frame portion 131 so as to cover the gap between the door body 101 and the rear opening 105, and rain water can be prevented from entering from the outside.

  The width adjustment member 141 includes a main body 65 that is in contact with the panel abutting surface 70c of the panel fitting opening 70 of the frame 131 by a width adjustment reference surface 65c, and protrudes from the main body 65 to the side opposite to the width adjustment reference surface 65c. And a width adjusting fitting convex portion 69 formed on the front surface side protruding portion 61 of the protruding portion 60.

The front surface 121 a of the front surface side rail flange 51 of the center rail 121 is in contact with the back surface 66 b of the front surface side protruding portion 61 of the width adjusting member 141. Further, the front surface 60 a of the front surface side protruding portion 61 of the width adjusting member 140 is in contact with the back surface 70 b of the front surface side frame flange 71 of the frame portion 131.
The front surface 80 a of the rear surface side rail flange 52 of the center rail 121 is in contact with the rear surface 60 b of the front surface side protruding portion 62 of the width adjusting member 141. The back surface 121 b of the back surface side rail flange 52 of the center rail 121 is in contact with the surface 70 a of the back surface side frame flange 72 of the frame portion 131.

Of the pair of surfaces that are in contact with each other between the center rail 120 and the width adjusting member 140, the surface 121 a of the surface side rail flange 51 of the center rail 121 and the back surface 66 b of the surface side protruding portion 61 of the width adjusting member 141. A width adjusting fitting convex portion 69 and a width adjusting fitting concave portion 89 are formed only on the contact surface therebetween.
That is, a width adjusting fitting convex portion 69 formed by forming a plurality of convex portions 11 having a comb-like cross-sectional shape at a constant interval is formed on the back surface 66b of the front surface side protruding portion 61 of the width adjusting member 141. A width-adjusting fitting recess 89 formed of the recess 12 having a comb-shaped cross section is formed on the surface 121a of the side rail flange 51.

  As a result, as shown in FIGS. 8A and 8B, fine adjustment is performed by controlling the position of the width adjustment fitting convex portion 69 with respect to the width adjustment fitting concave portion 89, so that the optimum width is obtained. The door body 101 can be used.

(Embodiment 3)
FIG. 9 is a cross-sectional view showing another example of a door body used for a truck rear door according to an embodiment of the present invention. This door body has a combined portion including a center rail 122, a width adjusting member 142, and a frame portion 131. FIG. 9A is a diagram when the width is minimized, and FIG. 9B is a diagram when the width is maximized.
The second embodiment has the same configuration as that of the second embodiment except that the structure of the center rail 122 and the width adjusting member 142 is different.
The same members as those in the first embodiment are denoted by the same reference numerals.

Similar to the second embodiment, a width adjusting member 142 made of an extruded shape made of an aluminum alloy is disposed between the frame portion 131 and the center rail 122.
The width adjustment reference surface 65 c is in contact with the panel abutting surface 70 c of the frame portion 131.

  The width adjustment member 142 protrudes from the main body 65 to the opposite side of the width adjustment reference surface 65c. The main body 65 is in contact with the panel abutting surface 70c of the panel fitting opening 70 of the frame 131 by the width adjustment reference surface 65c. And a width adjusting fitting convex portion 69 formed on the protruding portion 60.

The front surface 122 a of the front surface side rail flange 51 of the center rail 122 is in contact with the back surface 70 b of the front surface side frame flange 71 of the frame portion 131. The rear surface 80 b of the front surface side rail flange 51 is in contact with the front surface 60 a of the front surface side protruding portion 61 of the width adjusting member 142.
The back surface 122 b of the back surface side rail flange 52 of the center rail 121 is in contact with the surface 66 a of the back surface side protruding portion 62 of the width adjusting member 142. The back surface 60 b of the back surface side protruding portion 62 of the width adjusting member 142 is in contact with the surface 70 a of the back surface side frame flange 72 of the frame portion 131.

On a pair of surfaces that are in contact with each other between the center rail 120 and the width adjusting member 140, a width adjusting fitting convex portion and a width adjusting fitting concave portion are formed, respectively.
That is, the width adjustment fitting convex portion 69 is formed on the surface 60 a of the front surface side protruding portion 61 of the width adjusting member 142, and the width adjustment fitting concave portion 89 is formed on the back surface 80 b of the front surface side rail flange 51.
Further, a width adjustment fitting convex portion 69 is formed on the front surface 66 a of the rear surface side protruding portion 62 of the width adjusting member 140, and a width adjustment fitting concave portion 89 is formed on the rear surface 120 b of the rear surface side rail flange 52. .

  As a result, as shown in FIGS. 9A and 9B, fine adjustment is performed by controlling the position of the width adjustment fitting convex portion 69 with respect to the width adjustment fitting concave portion 89, so that the optimum width is obtained. The door body 101 can be used.

(Embodiment 4)
FIG. 10 is a cross-sectional view showing another example of a door used for a truck rear door according to an embodiment of the present invention. The door body has a combination portion including a center rail 123, a width adjusting member 143, and a frame portion 131. FIG. 10A is a diagram when the width is minimized, and FIG. 10B is a diagram when the width is maximized.
The second embodiment has the same configuration except that the structure of the center rail 123 and the width adjusting member 143 is different.
The same members as those in the first embodiment are denoted by the same reference numerals.

Similar to the second embodiment, a width adjusting member 143 made of an extruded shape made of an aluminum alloy is disposed between the frame portion 131 and the center rail 123.
The width adjustment reference surface 65 c is in contact with the panel abutting surface 70 c of the frame portion 131.

  The width adjustment member 143 protrudes from the main body 65 to the opposite side of the width adjustment reference surface 65c from the main body 65, which is in contact with the panel abutting surface 70c of the panel fitting opening 70 of the frame 131 by the width adjustment reference surface 65c. And a width adjusting fitting convex portion 69 formed on the protruding portion 60.

The front surface 123 a of the front surface side rail flange 51 of the center rail 123 is in contact with the back surface 70 b of the front surface side frame flange 71 of the frame portion 131. The rear surface 80 b of the front surface side rail flange 51 is in contact with the front surface 60 a of the front surface side protruding portion 61 of the width adjusting member 142.
The front surface 80 a of the back surface side rail flange 52 of the center rail 123 is in contact with the back surface 60 b of the back surface side protruding portion 62 of the width adjusting member 142. The back surface 123 b of the back surface side rail flange 52 is in contact with the surface 70 a of the back surface side frame flange 72 of the frame portion 131.

Of the pair of surfaces that are in contact with each other between the center rail 123 and the width adjusting member 143, the back surface 80b of the surface side rail flange 51 of the center rail 123, and the surface 60a of the surface side protruding portion 61 of the width adjusting member 143 A width adjusting fitting convex portion 69 and a width adjusting fitting concave portion 89 are formed only on the contact surface therebetween.
That is, the width adjusting member 143 is formed with a width adjusting fitting convex portion 69 composed of the convex portion 11 having a comb-shaped cross section, and the comb-shaped concave portion 12 having a cross sectional shape is formed on the surface side rail flange 51 at a constant interval. A width adjusting fitting recess 89 is formed.

  As a result, as shown in FIGS. 10A and 10B, fine adjustment is performed by controlling the position of the width adjustment fitting convex portion 69 with respect to the width adjustment fitting concave portion 89, so that the optimum width is obtained. The door body 101 can be used.

(Embodiment 5)
FIG. 11 is a cross-sectional view showing another example of a door used for a truck rear door according to an embodiment of the present invention. The door body has a combination portion including a center rail 124, a width adjusting member 144, and a frame portion 131. FIG. 11A is a diagram when the width is minimized, and FIG. 11B is a diagram when the width is maximized.
The second embodiment has the same configuration except that the structure of the center rail 124 and the width adjusting member 144 is different.
The same members as those in the first embodiment are denoted by the same reference numerals.

Similar to the second embodiment, a width adjusting member 144 made of an extruded shape made of an aluminum alloy is disposed between the frame portion 131 and the center rail 124.
The width adjustment reference surface 65 c is in contact with the panel abutting surface 70 c of the frame portion 131.

  The width adjustment member 144 projects from the main body 65 to the opposite side of the width adjustment reference surface 65c from the main body 65, which is in contact with the panel abutting surface 70c of the panel fitting opening 70 of the frame 131 by the width adjustment reference surface 65c. And a width adjusting fitting convex portion 69 formed on the protruding portion 60.

The front surface 124 a of the front surface side rail flange 51 of the center rail 124 is in contact with the back surface 70 b of the front surface side frame flange 71 of the frame portion 131. The rear surface 80 b of the front surface side rail flange 51 is in contact with the front surface 60 a of the protruding portion 60 of the width adjusting member 142.
The front surface 80 a of the back surface side rail flange 52 of the center rail 124 is in contact with the back surface 60 b of the protrusion 60 of the width adjusting member 142. The back surface 124 b of the back surface side rail flange 52 is in contact with the surface 70 a of the back surface side frame flange 72 of the frame portion 131.

On a pair of surfaces that are in contact with each other between the center rail 124 and the width adjusting member 144, a width adjusting fitting convex portion and a width adjusting fitting concave portion are formed, respectively.
That is, the width adjustment fitting convex portion 69 is formed on the surface 60 a of the protrusion 60 of the width adjusting member 144, and the width adjustment fitting concave portion 89 is formed on the back surface 80 b of the front side rail flange 51.
Further, a width adjusting fitting convex portion 69 is formed on the back surface 60 b of the protruding portion 60 of the width adjusting member 144, and a width adjusting fitting concave portion 89 is formed on the surface 80 a of the back surface side rail flange 52.

As a result, as shown in FIGS. 11A and 11B, fine adjustment is performed by controlling the position of the width adjustment fitting convex portion 69 with respect to the width adjustment fitting concave portion 89, so that the optimum width is obtained. The door body 101 can be used.
Moreover, the strength can be further increased by forming the protruding portion 60 as a hollow structure.

(Embodiment 6)
FIG. 12 is a cross-sectional view showing another example of a door body used for a truck rear door according to an embodiment of the present invention. This door body has a combined portion including a center rail 122, a width adjusting member 145, and a frame portion 131. FIG. 12 is a diagram when the width is maximized.
The third embodiment has the same configuration except that the width adjusting member 145 is provided with a seal material groove 154 and the seal material groove 154 is disposed in the seal material groove 154.

A seal material groove 154 is provided in the width adjustment reference surface 65 c of the main body 65, and the seal material 155 is disposed in the seal material groove 154. Therefore, it is possible to prevent rainwater from entering inside through the width adjusting member 145 and the frame portion 131, and to improve waterproofness.
The material for the sealing material 155 is not particularly limited, and a known material can be used. Further, the position of the groove portion 154 for the sealing material is not particularly limited, and can be set at a place where rainwater may enter.

  The truck rear door 100 according to the embodiment of the present invention includes at least one of a side surface near the hinge mechanism of the side rail 113 or a side surface near the center of the center rail 120 and the panel fitting opening 70 of the frame portion 130. A width adjustment member 140 is installed between the main body 65 and the width adjustment member 140 having a width adjustment reference surface 65c that is in contact with the panel abutting surface 70c of the panel fitting opening 70 of the frame portion 130. And a protrusion 60 protruding from the main body 65 in the opposite direction to the width adjustment reference surface 65c. The protrusion 60 is formed with a width adjustment protrusion 69, and the side rail 113 is close to the hinge mechanism. Alternatively, rail flanges 51 and 52 are formed on at least one side surface of the center rail 120 near the center. Since the rail flanges 51 and 52 are provided with a width adjusting fitting concave portion 89 to be fitted with the width adjusting fitting convex portion 69, they can be easily and accurately connected and firmly connected. be able to. Moreover, the panel part 107 can be designed so that the manufacturing method and intensity | strength of the door body 101 may be optimized.

  The truck rear door 100 according to the embodiment of the present invention has a configuration in which a width adjusting member 140 made of an extruded material made of an aluminum alloy is disposed between the frame portion 130 and the center rail 120. The rail 120 can be firmly connected, the width of the door 101 can be adjusted easily and accurately, and a highly accurate truck rear door can be manufactured in a short time.

  Further, the truck rear door 100 according to the embodiment of the present invention has a configuration in which a width adjusting member 140 made of an extruded shape made of an aluminum alloy is disposed between the frame portion 130 and the center rail 120. A hollow structure can be provided between the center rail 120 and the center rail 120, which can be strong against bending and twisting, and the reaction force of the rubber packing is distributed to the frame portion 130, so that a force can be applied to a part in a concentrated manner. In this way, the strength of the door can be improved. As a result, it is possible to prevent the rivet from being loosened and the truck rear door from expanding.

  Furthermore, since the truck rear door 100 according to the embodiment of the present invention uses the width adjusting member 140 having a small size, the material cost of the width adjusting member 140 can be reduced and the types of rail materials can be reduced. Thus, the manufacturing cost can be reduced.

  The track rear door 100 according to the embodiment of the present invention includes a plurality of convex portions 11 and 13 in which at least one of the width adjusting fitting convex portion 69 and the width adjusting fitting concave portion 89 is provided at a constant interval. Or since it is the structure which consists of recessed parts 12 and 14, the said width adjustment fitting convex part 69 and the said width adjustment fitting recessed part 89 can be fitted in arbitrary positions, and the width | variety of a door body is easy and accurate. Can be adjusted.

  The track rear door 100 according to the embodiment of the present invention has a width adjustment fitting convex portion on at least one of a pair of surfaces that are in contact with each other between the rail member 112 and the width adjustment member 140. 69 and the width adjusting fitting recess 89 are formed, so that they can be easily and accurately connected and firmly connected.

  The truck rear door 100 according to the embodiment of the present invention has a configuration in which a seal material groove 155 is provided on the width adjustment reference surface 65c of the main body 65, and a seal material 154 is disposed in the seal material groove 155. Waterproofness can be improved.

  The truck rear door 100 according to the embodiment of the present invention has a configuration in which the center rail 120, the frame portion 130, and the width adjusting member 140 are fixed by the rivets 150. Therefore, the strength of the door body 101 is increased and the durability is improved. be able to.

In the truck rear door 100 according to the embodiment of the present invention, since the rear surface side protruding portion 62 of the width adjusting member 140 is longer than the front surface side protruding portion 61, the center rail 120, the width adjusting member 140, and the frame portion 130 are combined. After that, the rivet 150 can be used to join them from the back side. Moreover, since the surface side is a structure which does not rivet fasten, the length of the surface side protrusion part 61 can be shortened, and the weight reduction of the width adjustment member 140 can be achieved.
EXAMPLES Hereinafter, although this invention is demonstrated based on an Example, it is clear that this invention is not restrict | limited only to a following example.

Example 1
A combination sample including the center rail, the width adjusting member, and the frame portion shown in the first embodiment was created.
The center rail had a hollow structure made of an aluminum extruded shape having a length of 209.5 mm, a width of 31 mm, and a wall thickness of 1.5 to 1.6 mm. The width adjusting member had a hollow structure made of an extruded aluminum member having a length of 42 mm, a width of 31 mm, and a thickness of 2 mm. The frame part had a hollow structure made of an aluminum extruded profile having a length of 62 mm, a width of 35.3 mm, and a thickness of about 2 mm.
The width adjustment of 20 mm could be performed by controlling the position of the fitting protrusion for width adjustment with respect to the fitting recess for width adjustment.
Moreover, the rear door for trucks was manufactured using this for a door. A rainwater infiltration test and a strength test were conducted to confirm that both were at the product level.

(Examples 2 to 5)
The combination sample which consists of the center rail shown in Embodiment 2-5, the width adjustment member, and the frame part was created. In this combination, in any sample, by controlling the position of the width adjustment fitting convex portion with respect to the width adjustment fitting concave portion, the width L ₄ when the width is the narrowest is 97 mm, and the width L ₅ when the width is the widest. Was 107 mm, and the width could be adjusted by 10 mm.
Moreover, the rear door for trucks was manufactured using these for a door body. A rainwater infiltration test and a strength test were conducted to confirm that both were at the product level.

  The present invention provides a truck rear door that reduces the manufacturing cost by reducing the types of rail materials (aluminum extrusions) constituting the panel of the truck rear door, and has improved strength. It can be used in the manufacturing industry.

It is a figure which shows the rear door for trucks which is embodiment of this invention. It is sectional drawing of the side rail used for the rear door for trucks which is embodiment of this invention. It is sectional drawing of the middle rail used for the rear door for trucks which is embodiment of this invention. It is sectional drawing of the center rail used for the rear door for trucks which is embodiment of this invention. It is sectional drawing of the flame | frame part used for the rear door for trucks which is embodiment of this invention. It is sectional drawing of the width adjustment member used for the rear door for trucks which is embodiment of this invention. It is sectional drawing which shows the connection state of the center rail used for the rear door for trucks which is embodiment of this invention, a width adjustment member, and a frame part. It is sectional drawing which shows the connection state of the center rail used for the rear door for trucks which is embodiment of this invention, a width adjustment member, and a frame part. It is sectional drawing which shows the connection state of the center rail used for the rear door for trucks which is embodiment of this invention, a width adjustment member, and a frame part. It is sectional drawing which shows the connection state of the center rail used for the rear door for trucks which is embodiment of this invention, a width adjustment member, and a frame part. It is sectional drawing which shows the connection state of the center rail used for the rear door for trucks which is embodiment of this invention, a width adjustment member, and a frame part. It is sectional drawing which shows the connection state of the center rail used for the rear door for trucks which is embodiment of this invention, a width adjustment member, and a frame part. It is sectional drawing which shows the connection state of the center rail used for the conventional rear door for trucks, and a frame part. It is sectional drawing which shows the connection state of the center rail used for the conventional rear door for trucks, and a frame part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11, 13 ... convex part, 12, 14 ... recessed part, 51 ... front surface side rail flange, 52 ... back surface side rail flange, 60 ... protrusion part, 60a ... front surface, 60b ... back surface, 61 ... front surface side protrusion part, 62 ... back surface Side projection 65, body portion 65c, width adjustment reference surface, 66a, front surface (inner wall surface), 66b, back surface (inner wall surface), 69, width adjustment fitting convex portion, 70, panel fitting opening, 70a, Front surface (inner wall surface), 70b ... Back surface (inner wall surface), 70c ... Contact surface, 71 ... Front side frame flange, 72 ... Back side frame flange, 80 ... Width adjusting member mounting opening, 80a Surface (inner wall surface), 80b DESCRIPTION OF SYMBOLS ... Back surface (inner wall surface), 81 ... Connecting plate, 89 ... Width adjustment fitting recessed part, 90 ... Outer edge part, 90c ... Depression, 100 ... Rear door for trucks, 101, 102 ... Door body, 104 ... Hinge mechanism, 105 ... Back Opening, 106 ... 108, handle, 110, locking portion, 112, rail material, 113, side rail (rail material), 115, middle rail (rail material), 120, 121, 122, 123, 124 ... center rail (rail) Material), 120a ... front surface, 120b ... back surface, 120e ... side surface, 129 ... outer frame portion, 130, 131 ... frame portion, 132 ... hinge mounting portion, 133 ... connecting portion, 141, 142, 143, 144, 145 ... width Adjusting member, 150 ... rivets, 155 ... sealing material, 220, 221 ... center rail (rail material), 230 ... mounting member, 231 ... rubber packing, 239 ... gap, 240 ... spacer.

Claims (4)

A double door type truck rear door that is attached to the rear opening of the truck's cargo compartment, is composed of a pair of left and right doors whose left and right ends can be pivoted by a hinge mechanism, and whose central part can be opened and closed.
The door body is composed of a flat panel portion and an outer frame portion into which an outer edge portion of the panel portion is fitted, and the panel portion is configured by laterally connecting a rail member made of an extruded shape member made of aluminum alloy. And the rail member is at least one side rail disposed near the hinge mechanism, a center rail disposed near the center portion, and at least one disposed between the side rail and the center rail. The outer frame portion is formed by combining a frame portion made of an extruded material made of aluminum alloy, and the frame portion has a U-shaped cross-sectional shape into which the outer edge portion of the panel portion is fitted. A panel fitting opening having a shape is provided, and the panel fitting opening includes a panel abutting surface against which a side surface of the panel portion is abutted, and a surface of the panel portion. And the surface side frame flange which is arranged to face, and the back-side frame flange which is arranged to face the back surface of the panel portion, has provided,
Width adjustment made of an extruded shape member made of aluminum alloy between at least one of the side rail near the hinge mechanism or the side near the center of the center rail and the panel fitting opening of the frame portion The parts are installed,
The width adjustment member is protruded in a direction opposite to the width adjustment reference plane from the main body, and a main body having a width adjustment reference surface that is in contact with a panel abutting surface of the panel fitting opening of the frame portion. The front surface side protruding portion and the back surface side protruding portion, and the front surface side protruding portion is formed with a fitting protrusion for width adjustment,
A front-side rail flange and a back-side rail flange are formed on at least one of the side surface near the hinge mechanism of the side rail or the side surface near the center of the center rail,
A width-adjusting fitting recess that is fitted to the width-adjusting fitting protrusion is provided on the back side of the front-side rail flange ,
At least one of the width adjustment fitting convex portion or the width adjustment fitting concave portion is composed of a plurality of convex portions or concave portions provided at regular intervals,
The side rails and / or the back rail rail flanges of the center rail and the back side protrusions of the width adjusting members are arranged in this order or in reverse order on the inner surface of the back side frame flange of the frame part. The rear frame flange of the frame portion and the side rail and / or the rear rail flange of the center rail and the width by rivets or bolting through the rear frame flange, the rear rail flange and the rear projection. The back side protrusion of the adjustment member is fixed, and the width adjustment member and the back side rail flange are fixed inside the panel fitting opening of the frame part,
Inserting the front side rail flange of the side rail and / or the center rail between the front side protruding portion of the width adjusting member fixed to the inside of the frame portion and the front side frame flange of the frame portion, The front-side rail flange surface and the front-side frame of the frame part are formed by fitting the width-adjusting fitting concave part of the front-side rail flange and the width-adjusting fitting convex part of the front side protruding part of the width adjusting member. A rear door for a truck, characterized in that the flange is overlapped and contacted . A double door type truck rear door that is attached to the rear opening of the truck's cargo compartment, is composed of a pair of left and right doors whose left and right ends can be pivoted by a hinge mechanism, and whose central part can be opened and closed.
The door body is composed of a flat panel portion and an outer frame portion into which an outer edge portion of the panel portion is fitted, and the panel portion is configured by laterally connecting a rail member made of an extruded shape member made of aluminum alloy. And the rail member is at least one side rail disposed near the hinge mechanism, a center rail disposed near the center portion, and at least one disposed between the side rail and the center rail. The outer frame portion is formed by combining a frame portion made of an extruded material made of aluminum alloy, and the frame portion has a U-shaped cross-sectional shape into which the outer edge portion of the panel portion is fitted. A panel fitting opening having a shape is provided, and the panel fitting opening includes a panel abutting surface against which a side surface of the panel portion is abutted, and a surface of the panel portion. And the surface side frame flange which is arranged to face, and the back-side frame flange which is arranged to face the back surface of the panel portion, has provided,
Width adjustment made of an extruded shape member made of aluminum alloy between at least one of the side rail near the hinge mechanism or the side near the center of the center rail and the panel fitting opening of the frame portion The parts are installed,
The width adjustment member is protruded in a direction opposite to the width adjustment reference plane from the main body, and a main body having a width adjustment reference surface that is in contact with a panel abutting surface of the panel fitting opening of the frame portion. The front surface side protruding portion and the back surface side protruding portion, and the front surface side protruding portion is formed with a fitting protrusion for width adjustment,
A front-side rail flange and a back-side rail flange are formed on at least one of the side surface near the hinge mechanism of the side rail or the side surface near the center of the center rail,
A width-adjusting fitting recess is provided on the surface side of the surface-side rail flange and is fitted with the width-adjusting fitting protrusion.
At least one of the width adjustment fitting convex portion or the width adjustment fitting concave portion is composed of a plurality of convex portions or concave portions provided at regular intervals,
The side rails and / or the back rail rail flanges of the center rail and the back side protrusions of the width adjusting members are arranged in this order or in reverse order on the inner surface of the back side frame flange of the frame part. The rear frame flange of the frame portion and the side rail and / or the rear rail flange of the center rail and the width by rivets or bolting through the rear frame flange, the rear rail flange and the rear projection. The back side protrusion of the adjustment member is fixed, and the width adjustment member and the back side rail flange are fixed inside the panel fitting opening of the frame part,
The front side protrusion of the width adjusting member is inserted between the front side frame flange of the frame part and the front side rail flange of the side rail and / or the center rail, and the front side protruding part of the width adjusting member The width adjustment fitting convex portion and the width adjustment fitting concave portion of the surface side rail flange are fitted together, and the surface side rail flange surface and the surface side frame flange of the frame portion are overlapped to be in contact with each other. A rear door for trucks.   3. The truck rear door according to claim 1, wherein a sealing material groove is provided on a width adjusting reference surface of the width adjusting member, and the sealing material is disposed in the sealing material groove. The rear door for a truck according to claim 1 , wherein the rear surface side protruding portion of the width adjusting member is longer than the front surface side protruding portion.

Images