JP3351928B2 - Kannon doors for cargo handling using extruded aluminum bars - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double door for cargo handling which is incorporated in a van or wing type transport vehicle, a freezing vehicle, a marine container or the like, and has a structure in which a plurality of members made of extruded aluminum members are interconnected. .

[0002]

2. Description of the Related Art A van van, a wing truck, a marine container and the like of a truck are provided with a loading / unloading door used for loading / unloading of cargo. In a conventional double door, for example, provided at the rear of a van, as shown in FIG. 1, left and right doors 10 and 20 are pivotally attached to left and right frames 12 and 22 on the vehicle body side by hinge mechanisms 11 and 21. ing. Then, usually, the doors 10 and 20 extend vertically with respect to 2.
The locking rods 13, 14 and 23, 24 are provided. Each of the rods 13, 14 and 23, 24 is rotated by handles 15, 16, 25, 26, respectively, and locking projections 17, 18, 27, 27,
At 28, engagement portions provided at the tips of the rods 13, 14 and 23, 24 are stopped. When opened, the locking projections 17 and 1
8 and 27, 28 to each rod 13, 14, 23, 2
Then, the left and right doors 10 and 20 are opened. When closing, close the open doors 10 and 20,
By operating the handles 15, 16 and 25, 26 of the doors 10, 20 in the closed position, the rods 13, 14, 23, 2 are operated.
4 and the corresponding locking projections 17, 18 and 27, 28
To be engaged. Thereby, the doors 10 and 20 are restrained in the closed state.

[0003]

As the door, a thick veneer plate is used in which aluminum plates are adhered to both sides of a thick veneer plate. For this reason, the wooden portion of the door may absorb moisture due to intrusion of rainwater or the like, and the weight may increase. The permeated water causes corrosion of the wooden part and rust of the metal fittings used. Moreover, since the hinge mechanism and the lock mechanism are exposed outside the door, there is a portion where rainwater or the like accumulates, and corrosion and rust are promoted. The hinge mechanism and the lock mechanism exposed to the outside of the door may cause deterioration of the appearance of the transport vehicle, the container, and the like. In particular, the back of a truck or the like often displays a company name, an advertisement, or the like in many cases. If such a rear portion has a projection such as a hinge mechanism or a lock mechanism, the display itself is also poor in recognition. The present invention has been devised in order to solve such a problem. The door body is assembled by connecting an extruded aluminum extruded member having excellent corrosion resistance, and a lock mechanism is built in the door, so that the door can be assembled. It is an object of the present invention to provide a double-sided door which has a flat surface to improve aesthetic appearance and excellent durability.

[0004]

In order to achieve the object, a double door for cargo handling according to the present invention is provided with left and right door bodies and the door.
A cover that covers the upper and lower openings of the member,
It is attached to the left and right sides, and is attached to the left and right frames on the container body side
Configure the hinge bracket to be connected and the central side of the door body.
Mating pieces and mating recesses respectively formed on the door members,
A lock lock that is built into one of the door members and can rotate.
And an opening window formed on the outer surface of the door member,
A door book comprising an operating unit for operating a locking rod
On the loading door with no protrusions on the outer surface of the body,
Doors on the right are multiple doors made of hollow extruded aluminum
The side end surfaces of the members are connected to each other,
Connected to the door member with the pair of engagement projections formed
A pair of engaging projections formed on the opposing surface of the door member;
Formed between both door members when the engagement protrusion engages
Wedge with a diamond-shaped cross section inserted into the diamond-shaped space
The ridge formed on the peripheral surface of the wedge is a side end of the door member.
The two door parts
The material is connected. Of the engagement protrusions, the engagement protrusion positioned outside in the meshing state may have a drain groove formed on a front end surface thereof that comes into contact with a side end surface of the facing door member. Further, when the gap formed when the engagement projections are engaged with each other is filled with the sealing agent, permeation of moisture is suppressed.

At the portion where the left and right doors meet, a mating piece is formed on the side surface of the door member that forms the side of one door body, and the mating piece corresponds to the door member that forms the side of the other door body. To form a matching recess. Further, a locking projection and a locking portion for attaching a seal packing to the side end surface of the door member having the mating piece and the mating piece are formed. In the closed state where the left and right doors are put together, the sealing gasket comes into close contact with the side end surface and the mating concave portion of the door member that constitutes the side of the other door, and forms a mating surface having high resistance to moisture penetration. The upper and lower openings of the door member (aluminum extruded profile) constituting the door body are closed by a cover.
This cover is also made of an extruded aluminum material, and has an inner holding piece and an outer holding piece extending in parallel with a gap corresponding to the thickness of the door body, a web connecting these holding pieces, and an outer holding piece. And a contact piece extending continuously from the contact piece. The inner holding piece is mechanically fixed to the inner surface of the door body with a rivet or the like, and the outer holding piece is bonded to the outer surface of the door body. The web and the abutting piece are also formed with locking portions for mounting the seal packing. Seal packing is
When the door is closed, the container body is in close contact with the upper frame and the lower frame of the container body, thereby preventing moisture from penetrating from upper and lower gaps.

[0006] The hinge fitting is made of an extruded aluminum material having a cross-sectional shape in which a substantially L-shaped arm portion is integrated from a rotating portion via a connecting portion. On the surface of the L-shaped arm portion facing the door body, a pair of engagement projections is formed to engage with a pair of engagement projections formed on the side end surface of the extruded aluminum material forming the side of the door body. . These engagement parts also
Similarly, they are connected by a wedge made of an extruded aluminum member having a rhombic cross section, and the gap is sealed with a seal packing. The hinge fitting has a plurality of notches formed along the longitudinal direction of the rotating portion, and brackets fixed to the left and right frames on the container body side are inserted into the notches. The door body is pivotally attached to the left and right frames so as to be openable and closable by inserting the hinge shaft into the through hole provided in the rotating portion and the through hole provided in the bracket. The connecting portion connecting the L-shaped arm portion and the rotating portion of the hinge fitting is oblique to the rotating portion-side piece of the door-opening L-shaped arm portion at an angle and length such that the opening angle of the door is 270 degrees. I have.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a double door mounted on a container body provided on a truck bed will be described below with reference to the drawings. In the double door according to the present embodiment, a door body in which a plurality of door members made of extruded aluminum members are combined is attached to the rear of the vehicle body as shown in FIG. As the extruded aluminum material, a 6000 series aluminum alloy subjected to a chemical conversion treatment such as an alumite treatment is used.
In the example of FIG. 3 showing a state in which the door is removed from the vehicle body, the left door 100 is divided into four door members 110, 110, 120, and 130.
Are assembled together. Similarly, the right door 200 is assembled by joining four door members 210, 210, 220 and 230 together. The solid lines in FIGS. 2 and 3 show the connecting surfaces of the extruded profiles. The door members 120 and 220 include lock mechanisms 140 and 240, respectively.
240 operation units 141 and 241 are opening windows 142 and 242
Peeping from. As the lock mechanisms 140 and 240,
The rod 14 is operated by the operation units 141 and 241 as in the prior art.
3, 243 are rotated to engage the vehicle body with a locking projection (not shown).
And a mechanism for engaging or disengaging the device. Rod 14
Stainless steel having excellent durability, corrosion resistance, strength and the like is used for 3,243. As the lock mechanisms 140 and 240, an electric lock mechanism can be used. The door member 110 has a hollow cross section in which the thickness direction is connected by ribs at appropriate locations as shown in FIG. 4, and includes engagement projections 111 to 114 on both sides. Engagement projections 111 to 11
Reference numeral 4 extends in the longitudinal direction of the door member 110, that is, in the vertical direction in FIG.

The engaging projection 111 extends continuously from the surface of the door member 110, and has a drain groove 115 formed on the front end side surface.
Is formed. The engagement protrusion 112 is provided at a position slightly receded from the other surface of the door member 110, and has a distal end facing outward. The engagement protrusion 113 located on the opposite end face is provided at a position slightly retreated from the surface of the door member 110, and the tip is directed outward. The engagement protrusion 114 extends continuously from the other surface of the door member 110, and a drain groove 116 is formed on a front end side surface. The door member 120 also has similar engagement projections 121, 122 and 123, 124 on both left and right end faces. In the door member 120, a space 128 into which the locking rod 143 is inserted is formed by ribs 129 and 129. Door member 13 fitted to right door 200 in a closed state
0 has similar engagement projections 131 and 132 on one side end face, and seal packing 150 on the other side end face.
Is formed with a locking projection 137 and a mating piece 138 for mounting the same. The engagement piece 138 is also provided with a locking portion 139 to which the seal packing 151 is attached.

The right door 200 also has a structure in which door members 210, 210, 220, 230 having the same structure are connected. However, the door member 230 located on the center side has
A mating portion 238 corresponding to the mating piece 138 of the left door 100 is formed, and the side end surface 237 is flat. These door members are connected to each other by engaging engagement projections on the side end surfaces. For example, door members 110 and 12
5A, the door member 120 is extended along the side end surface of the door member 110 in a state where the engagement protrusions 113 and 114 are engaged with the engagement protrusions 121 and 122, respectively, as shown in FIG. Slide in the direction. Between the fitted door members 110 and 120, the door members 110, 12
0 and end protrusions 113, 114, 121, 12
A diamond-shaped space defined by the two side surfaces is formed. A wedge 160 shown in FIG. 5B is inserted into the diamond-shaped space. The wedge 160 is a hollow extruded member having a contour similar to that of the rhombic space portion, and has a plurality of ridges 161 formed on a peripheral surface in a longitudinal direction. When the wedge 160 is inserted between the door members 110 and 120, the door members 110 and 120 are connected via the wedge 160 as shown in FIG. The ridge 161 of the wedge 160 is the door member 11
0, 120 side end faces and engagement projections 113, 114, 12
1, 122, the door member 110
And 120 are firmly connected.

As shown in an enlarged view in FIG. 5 (d), the connecting portion has the tip of the engaging protrusion 121 fitted into the recess of the engaging protrusion 113, and the engaging protrusion 114 fits into the recess of the engaging protrusion 122. The connection structure has the distal end fitted therein. Here, the engagement protrusion 1
13 so that a slight gap is formed between the recess of the engagement protrusion 122 and the tip of the engagement protrusion 114, and between the recess of the engagement protrusion 122 and the tip of the engagement protrusion 114.
1,122 are designed, and the sealant 153
And 154 are filled. Draining grooves 116 and 125 are located on the mating surface between the door members 110 and 120.
Therefore, permeation of moisture through the connecting portions from outside to inside of the assembled doors 100 and 200 is prevented. In this way, by connecting the door members 110, 110, 120, and 130 via the water-resistant connection portion, the left door 100 is assembled as shown in FIG. Similarly, the right door 200 also has the door members 210, 210, 2
20, 230 are assembled. Wedge 160
Has a connection strength comparable to that of welding, and does not generate welding marks or the like that deteriorate the surfaces of the door members 110 and 120. Also, compared to the connection using the through bolt, the door members 110 and 120 are not deformed, and the insertion of the rods 143 and 243 is not hindered. Further, a door member 1 made of a rigid extruded profile is provided.
10 and 120 are connected, so that the door bodies 100 and 20
Only by providing a pair of locking rods 143 and 243 with respect to 0, a sufficient locking action is exhibited.

On the mating surface of the left and right doors 100 and 200, as shown in FIG.
It faces the matching recess 238 on the zero side. And the door member 23
The leg 152 of the seal packing 150 is pressed against the side end surface of the seal packing 150, and the leg 152 of the seal packing 151 is pressed against the surface of the matching recess 238. Thereby, when the left and right doors 100 and 200 are closed, the permeation of moisture through the mating surfaces is prevented. Door members 110, 120, 1
30 and 210, 220, and 230 have hollow portions of the extruded shapes opened on the upper and lower surfaces. In order to close this opening, a cover 170 as shown in FIG. 7 is attached to the upper and lower surfaces of the left door 100. A similar cover 270 is attached to the right door 200. As shown in FIG. 7 (b), the cover 170 includes holding pieces 171, 17 extending in parallel with a gap corresponding to the thickness of the door members 110, 120, 130.
2 is an extruded profile having an integrated structure in which the webs 2 are connected by a web 173. The holding pieces 171 located inside are fixed to the inner surfaces of the door members 110, 120, 130 with rivets 174 in order to attach the cover 170 with a predetermined strength. In order to improve the appearance, the sandwiching pieces 172 located on the outside are covered with an adhesive 175 filled in the space, and the door members 110, 120,
130 is bonded to the outer surface.

A contact piece 176 extends from the outer holding piece 171 in the same straight line. Web 173 and contact piece 176
Are formed with locking portions 177 and 178 to which seal packings 155 and 156 are attached, respectively. When the door 100 is closed, the legs 157 of the seal packings 155 and 156 are pressed against the surface of the upper frame 310 on the vehicle body side. As a result, the upper and lower portions of the door 100 come into close contact with the vehicle body. Similarly, the lower part of the door 100 is in close contact with the vehicle body side lower frame 320. A hinge fitting 180 made of extruded aluminum having a cross-sectional structure shown in FIG. 8A is fixed to the side of the door 100. The hinge fitting 180 has a through hole 1 into which a hinge shaft 190 (see FIG. 9) is inserted.
It has a rotating part 182 in which 81 is formed, and has a cross-sectional structure in which a substantially L-shaped arm part 183 extends from the rotating part 182 from the rotating part 182. Locking portions 184 and 185 are formed on each of two inner sides of the arm portion 183. As shown in FIG. 8B, seal packings 158 and 159 are attached to the locking portions 184 and 185. Arm part 18
3, engagement projections 186 and 187 are formed on a surface of the door 100 facing the door member 110. A drain groove 188 is formed on the distal end surface of the engagement protrusion 187.

The engagement projections 186 and 187 mesh with the engagement projections 111 and 112 of the door member 110 constituting the side of the door 100. Therefore, similarly to the case where the door members 110 and 120 are connected, when the wedge 160 is inserted between the door member 110 and the hinge metal member 180, the hinge metal member 180 is connected to the door 100 at the water-resistant connection portion. You. Seal packings 158, 159 mounted on hinge fittings 180
Is pressed against the front and side surfaces of the vehicle body side left frame 330 when the door 100 is closed. As a result, the legs of the seal packings 158 and 159 are
0, so that moisture permeation through the gap between the door 100 and the vehicle-side left frame 330 is prevented.

As shown in FIG. 9A, the hinge bracket 180 has a plurality of notches 189 at appropriate intervals along the longitudinal direction.
Are formed on the rotating part 182. In the notch 189,
Bracket 331 fixed to vehicle body side left frame 330
Is inserted. The brackets 331, 331,... Are fixed by welding or the like at appropriate intervals in the vertical direction of the vehicle body-side left frame 330, and have through holes 332 through which the hinge shaft 190 is inserted. The brackets 331, 331,...
9, 189, and the hinge shaft 190 is inserted through the through hole 181 and the through hole 332 as shown in FIG. 9B. As a result, the door 100 is pivotally attached to the left frame 330 on the vehicle body side so as to be openable and closable about the hinge shaft 190. The right door 200 is also pivotally connected to the vehicle body right frame 340 (see FIG. 2) by a similar hinge mechanism.

As shown in FIG. 8, the arm portion 183 extends from the rotating portion 182 of the hinge bracket 180 to the arm portion 183.
Is integrally provided with a connecting portion 191 that is oblique to the connecting portion. The presence of the connecting portion 191 allows the opening angle of the door 100 to be set to 270 degrees. That is, when the door 100 is fully opened, the door 100 is opened to the side of the vehicle body. Therefore, it is possible to load and unload the luggage in an open state where the doors 100 and 200 are temporarily fixed to the side of the vehicle body.
With 0,200, there is no trouble in unloading work and walking of passers-by. As is clear from the comparison between FIG. 1 and FIG.
Since 240 is built in doors 100 and 200, door 1
The front surfaces of 00 and 200 are finished to have a clean appearance without protrusions. Therefore, the distinctiveness of the store name and advertisement displayed on the front of the doors 100 and 200 becomes remarkable, and the vehicle itself also becomes excellent in aesthetic appearance. Also, doors 100, 20
0 is provided with a sealing mechanism for each part of the door 100,
There is no moisture penetration from the outside to the inside of the 200, and the protection of the loaded luggage is also ensured. Moreover, the doors 100 and 200
Since the door itself is made of a door member having excellent corrosion resistance, strength and light weight, it is not only suitable for a vehicle or the like that requires a reduction in fuel consumption, but also has an excellent appearance for a long period of time.

[0016]

As described above, since the double door according to the present invention is constituted by the left and right doors connected with the door members, the double door is compared with the conventional wooden body with an aluminum plate attached thereto. As a result, the vehicle is lightweight and suitable for vehicles and the like that require a reduction in fuel consumption, and has excellent durability. In addition, since there is no protrusion on the front surface of the door, a store name, an advertisement, and the like can be displayed on the door surface with high discrimination. Further, since the door is opened to the side of the vehicle body, the loading / unloading operation is facilitated without hindering the traffic of the pedestrian.

[Brief description of the drawings]

FIG. 1 shows a conventional double door provided at the rear of a vehicle.

FIG. 2 shows a double door according to the embodiment of the present invention provided at the rear of the vehicle.

FIG. 3 is a perspective view of the double-sided door of the embodiment of the present invention shown in a state where it is detached from a vehicle body.

Fig. 4 Exploded section of the door

FIG. 5 is a state in which the door member (a) of the left door is connected by a wedge (b) (c), a cross section of an enlarged connecting portion (d), and a door (e) in which the door members are connected.

[Fig. 6] Left and right door mating surfaces

7A is an overall view showing the positional relationship of the door with respect to the upper and lower frames on the vehicle body side, and FIG.

FIG. 8 shows a hinge fitting (a) for connecting the left door to the vehicle body-side left frame, a hinge fitting (b) fitted with a seal packing, and a connecting portion connecting the left door to the vehicle body-side left frame via the hinge fitting. Cross section (c)

FIG. 9 is an exploded perspective view (a) and a front view (b) showing the positional relationship between the hinge fitting and the vehicle body side left frame.

[Explanation of symbols]

110, 120, 130, 210, 220, 230: Door members 111 to 114, 12 made of extruded aluminum members
1-124, 131, 134: engagement projections 115, 1
16, 125, 126: concave groove for draining 128: space 129: rib 137: locking projection 138:
Fitting pieces 139: locking portions 140, 240: locking mechanisms 141, 241: operating portions 142, 242:
Opening windows 143,243: Rods 150,151,155,
156, 158, 159: Seal packing 15
2,157: legs 153, 154: sealant 160: wedge 161: ridge 170: cover
171, 172: clamping piece 173: web 17
4: Rivets 175: Adhesive 176: Contact piece
177, 178: locking part 180: hinge fitting
181: Through hole 182: Rotating part 183: Arm part 184, 18
5: locking portion 186, 187: engagement protrusion 188:
Draining groove 190: hinge shaft 191: connecting portion 237: side end surface 238: matching recess 310: body side upper frame 320: body side lower frame 330: body side left frame 331: bracket 332: through hole 333: washer 340: Body side right frame

Continuation of front page (56) References JP-A-5-113069 (JP, A) JP-A-5-74942 (JP, U) JP-A-3-19717 (JP, U) JP-A-1-114383 (JP) (U) Special table Hei 6-505946 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B60J 5/10 B62D 33/00 B60P 3/00

Claims (11)

(57) [Claims] 1. Left and right door bodies (100), (200)
And a cover for closing an upper opening and a lower opening of the door member.
(170) and attached to the left and right sides of the door body,
Hinge fittings (18 connected to the left and right frames on the main body side)
0) and a door member (13
0) and (230) respectively.
8) and the mating recess (238), and any one of the door members
Built-in and rotatable locking rods (143), (2
43) and an opening window (14) formed on the outer surface of the door member.
2), (242), the operation of operating the locking rod
Of the door body, including the working units (141) and (241).
In a loading door with no protrusions on the outer surface,
The door body is made of multiple extruded hollow aluminum door members
(110), (120), (130), (210),
Do not connect the side end faces of (220) and (230) to each other.
And a pair of engaging projections (11) formed on the side end surface of the door member.
1), (112), (113), (114) and the door
A pair of engaging members formed on opposing surfaces of the door member connected to the member;
Projections (121), (122), (123), (12)
4) and the two door members when these engagement projections are engaged with each other.
The diamond-shaped section inserted into the diamond-shaped space formed between
And a wedge (160) formed on a peripheral surface of the wedge.
The ridge (161) is formed on the side end surface of the door member and the engagement protrusion.
Both door members are connected by cutting into the side of
Kannon doors for cargo handling . 2. An engaging projection according to claim 1, wherein
Engagement projections (111), (11)
4), (121), and (124) show opposite door members.
A groove (115) for draining water is provided on the tip end surface which abuts the side end surface.
(116), (125), and (126) are formed.
Kannon door for cargo handling . 3. The engagement projection according to claim 1 or 2 is engaged.
The sealant (15
(3) A double door for cargo handling filled with (154) . 4. The mating piece (138) according to claim 1 is formed.
Door member (130) formed on the side end face and the mating piece.
Locking projections (137) and locking portions (139),
The locking projections and the seal packing (1
50), (151), and the closed state where the left and right doors are combined
In this state, the seal packing constitutes a side portion of the other door.
Handling pressed against the side end surface of the door member and the mating recess
Kannon door . 5. The door according to claim 1, wherein the cover is a door.
Inner holding piece extending in parallel with a gap corresponding to the thickness of the main body
(171) and outer holding pieces (172), and these holding pieces
From the web (173) that communicates the
Extending contact piece (176), and the inner holding piece is a door book.
It is mechanically fixed to the inner surface of the body and the outer holding piece is
Kannon door for cargo handling that is adhered to the outer surface of the car . 6. The web (173) according to claim 5, and the web (173).
The locking portion (17) formed on each of the contact pieces (176)
7), (178), and a sealing pad attached to the locking portion.
(155) and (156), with the door closed
In this state, the seal packings (155) and (156)
The upper frame (310) and the lower frame (32) of the container body
Kannon door for cargo handling that closely adheres to 0) . 7. The hinge fitting (180) according to claim 1, wherein :
From the rotating part (182) via the connecting part (191).
The cross-sectional shape where the L-shaped arm (183) is integrated
It is made of extruded aluminum material that has
The side surface of the door body is formed on the surface of the L-shaped arm portion.
A pair of engaging projections formed on the side end surface of the door member (110).
A pair of engagement projections meshing with the protuberances (111) and (112)
Kannon for cargo handling in which (186) and (187) are formed
Door . 8. An engagement projection (1) on the door member side according to claim 7.
11), (112) and the engagement protrusion (18) on the hinge fitting side.
6) and (187) are engaged with each other,
The diamond-shaped space between the metal fittings
Rust (160) was inserted and formed on the peripheral surface of the wedge
A ridge (161) is provided on the side end surfaces of the door member and the hinge fitting.
And the door member (1)
10) and the hinge fitting (180) is connected to the cargo handling view.
Sound door . 9. A light source according to claim 1, 7 or 8, wherein
The mounting bracket (180) is formed on the inner surface of the L-shaped arm.
Locking portions (184) and (185) and attached to the locking portions
Seals (158) and (159)
When the door is closed, the seal packing (15
8) and (159) are left and right frames (33) on the container body side.
(0), (340) a cargo door for cargo handling . 10. The method according to claim 1, wherein
The mounted hinge fitting (180) is a longitudinal part of the rotating part (182).
A plurality of notches (189) are formed along the direction.
Bracket fixed to the left and right frames on the container body side
(331) is inserted into the notch (189),
The through hole (181) provided in the rotating part (182) and the
A hinge is inserted into the through hole (332) provided in the racket (331).
By passing the shaft (190), the left and right frames
Kannon door for cargo handling with the door body pivotably attached to the door . 11. The connecting part (191) according to claim 7,
Door opening at an angle and length such that the door opening angle is 270 degrees
Obliquely oblique to the rotating part (182) side piece of the release L-shaped arm part
Connection fitting for cargo handling .