JP2007331721A - Opening and closing door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an opening/closing door excellent in corrosion resistance, used for an opening portion of a cargo box of a truck. <P>SOLUTION: The opening/closing door, provided in the opening portion 4 of the cargo box of the truck, includes: a door body 10 having a wooden panel 11; and a waterproofing frame 24 having a groove portion 24a of U-shaped cross section covering a lower side edge of the door body 10. A water movement path B is provided in the groove portion 24a with a lower end 10a of the door body 10 separated from the groove bottom 24g of the frame 24, and in the groove bottom 24g a through hole 24e for discharging water downward is provided in such a state as to communicate with the path B. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an opening / closing door used in an opening of a truck's packing box.

  As the open / close door, as shown in FIG. 9 (longitudinal sectional view), a door having a rectangular panel 100 and a waterproof frame 101 covering the lower edge of the panel 100 is known (for example, Patent Document 1).

  In this open / close door, a first drainage channel is formed by the groove 102 provided on the lower surface of the panel 100 and the inner peripheral surface 103 of the frame body 101, and by the cavity 105 inside the inner peripheral outer wall 104 of the frame body 101. A second drainage channel is formed, and a third drainage channel is formed by a cavity 108 between the inner surface of the covering portion 107 of the decorative member 106 and the outer surface of the frame body 101. Further, a drainage port 109 communicating with the outside from the third drainage channel is formed at the lower end of the covering portion 107, and a first through-hole 110 communicating with the first drainage channel 102 from the second drainage channel 105. And a second through-hole 111 communicating from the second drainage channel 105 to the third drainage channel 108 is formed in the inner peripheral outer wall 104.

Therefore, the water that has entered from the gap between the panel 100 and the frame body 101 enters the second drainage channel 105 from the first drainage channel 102 via the first through-hole 110, and then enters the second through-hole 111. Then, it enters the third drainage channel 108 and is discharged from the drainage port 109 to the outside.
JP 2006-21679 A

  By the way, in the case of the opening / closing door of Patent Document 1 described above, rainwater or the like can be prevented from entering the inside of the opening / closing door, but there is a risk that the countermeasures against corrosion of the panel and the frame body will be insufficient. That is, the panel 100 has rainwater passing through the first drainage channel 102 because the lower surface is in contact with the inner peripheral surface 103 of the frame body 101 at a portion other than the first drainage channel 102 and the first through hole 110. Or the like may permeate into the panel 100 and remain in the panel 100 for a long time, and the panel and the frame body may be easily corroded.

  The present invention has been made to solve the above-described problems of the prior art, and an object thereof is to provide an opening / closing door excellent in corrosion resistance.

  The open / close door according to claim 1 of the present invention is provided with a door body having a wooden panel and a U-shaped groove section covering a lower edge of the door body, provided at an opening of a truck's packing box. In the opening / closing door provided with a frame, a water movement passage is provided in the groove part by separating the lower end of the door body from the groove bottom of the frame body, and water is discharged downward to the groove bottom. The through-hole is provided in a state communicating with the passage.

  The opening / closing door according to claim 2 of the present invention is the opening / closing door according to claim 1, wherein a protrusion is provided on the groove bottom of the frame body, and the lower end of the door body is in contact with the protrusion. The water movement passage is formed by a groove adjacent to the protrusion.

  The opening / closing door according to claim 3 of the present invention is characterized in that, in the opening / closing door according to claim 2, the height of the ridge is larger than 2 mm and smaller than 10 mm.

Door according to claim 4 of the present invention, in the door according to any of claims 1 to 3, characterized in that the area of the through hole is smaller than the larger 50 mm ² than 7 mm ^2.

  In the case of the present invention, the lower end of the door body is separated from the groove bottom of the frame body, and a water movement passage is provided in the groove portion, and a discharge through hole is provided in the groove bottom, so that it gathers in the passage. The drained water is drained from the through hole, and the lower end of the door body is difficult to contact the water gathered in the passage. Therefore, it is possible to prevent the wooden panel from being impregnated with water, thereby improving the corrosion resistance of the panel and the frame.

  In the case of claim 2, since the lower end of the door body is brought into contact with the ridge provided on the groove bottom of the frame body, the frame body can be attached to the door body in an easily positioned state, and the door The positional relationship between the main body and the frame is difficult to change. And a passage can be secured by the positional relationship.

  According to the third aspect, since the height of the ridge is larger than 2 mm, it is possible to prevent the water movement in the passage from becoming difficult when the height is less than 2 mm. On the other hand, since the height of the ridge is smaller than 10 mm, there is an effect that the force for holding the panel of the groove portion can be prevented from being lowered. That is, when the height of the ridge is 10 mm or more, it is possible to make the area covering the edge of the door body the same by increasing the height of the groove from the groove bottom. Becomes deeper and the walls on both sides in the width direction become longer, which makes it easier to bend and deform and reduce the force to hold the panel in the groove. On the other hand, when the height of the ridge is 10 mm or more, unless the height of the groove from the groove bottom is increased, the area covering the edge of the door body is reduced, and the force to hold the panel of the groove is reduced. descend. Therefore, it can prevent that the force holding the panel of a groove part falls by making height of a protruding item | line smaller than 10 mm.

According to the fourth aspect, since the area of the through hole is larger than 7 mm ^2, it is possible to prevent water from becoming difficult to pass through the through hole when the area is set to 7 mm ² or less. On the other hand, since the area of the through hole is smaller than 50 mm ^2, it is possible to prevent the frame body from being easily twisted and deformed when the area of the through hole is 50 mm ² or more.

  The present invention will be specifically described below.

  1 is a perspective view showing a cargo box of a truck to which an opening / closing door according to the present embodiment is applied, and FIG. 2 is a front view showing the opening / closing door according to the present embodiment provided at an opening of the packing box of FIG. 3 is a cross-sectional view taken along line III-III in FIG. 2, and FIG. 4 is a cross-sectional view taken along line IV-IV in FIG.

  The open / close door 1 is attached to an opening 4 provided on the rear side of the cargo box 3 of the truck 2 so as to be openable and closable. The door main body 10 and a waterproof frame 20 that covers an edge of the door main body 10 are provided. With.

  The door body 10 is made by sticking, for example, aluminum plates 12 and 13 having excellent corrosion resistance to both surfaces of a rectangular wooden panel 11.

  The frame 20 is made of resin and is attached to the four sides of the door body 10. As shown in FIG. 3, the frame body 21 attached to the left side of the door body 10 has a U-shaped groove 21a covering the left edge of the door body 10, and the opposite side (left side) of the groove 21a. Are provided with waterproof fins 21b and 21c. In addition, a plurality of, for example, two ridges 21d are formed inside the groove 21a, and each ridge 21d is partially cut out in some places so that air or water between the passages on both sides across the ridge 21d is formed. It is possible to move. Furthermore, the waterproof fins 21b and 21c are formed of a soft resin that is easily bent and deformed, and when the door body 10 is closed with respect to the opening 4, the state is changed from a state indicated by a broken line to a state indicated by a solid line to become a waterproof state. Conversely, when the door body 10 is opened with respect to the opening 4, the state shown by the solid line is deformed to the state shown by the broken line. Portions other than the waterproof fins 21b and 21c in the frame body 21 are made of hard resin.

  The frame 22 attached to the right side of the door body 10 has a U-shaped groove 22a covering the right edge of the door body 10, and a waterproof fin 22b on the opposite side (right side) of the groove 22a. 22c is provided. Further, a plurality of, for example, two ridges 22d are formed inside the groove portion 22a, and each ridge 22d is partially cut out in some places, and air or water between the passages on both sides across the ridge 22d. It is possible to move. Further, the waterproof fins 22b and 22c are formed of a soft resin that is easily bent and deformed. When the door body 10 is closed with respect to the opening 4, the state is changed from a state indicated by a broken line to a state indicated by a solid line, and becomes waterproof. Conversely, when the door body 10 is opened with respect to the opening 4, the state shown by the solid line is deformed to the state shown by the broken line. Portions other than the waterproof fins 22b and 22c in the frame body 22 are made of hard resin.

  As shown in FIG. 4, the frame body 23 attached to the upper side of the door body 10 has a U-shaped groove 23a covering the upper edge of the door body 10, and the opposite side (upper side) of the groove 23a. Are provided with waterproof fins 23b and 23c. Further, a plurality of, for example, two ridges 23d are formed inside the groove 23a, and each ridge 23d is partially cut out in some places, and air or water between the passages on both sides across the ridge 23d. It is possible to move. Further, an air vent through hole 23e is formed in the groove 23a. Furthermore, the waterproof fins 23b and 23c are formed of a soft resin that can be easily bent and deformed, and when the door body 10 is closed with respect to the opening 4, the state shown by the broken line is changed to the state shown by the solid line to become a waterproof state. On the contrary, when the door body 10 is opened with respect to the opening 4, the state shown by the solid line is deformed to the state shown by the broken line. Portions other than the waterproof fins 23b and 23c in the frame body 23 are formed of a hard resin.

  The frame 24 attached to the lower side of the door main body 10 has a U-shaped groove 24a covering the lower edge of the door main body 10, and a waterproof fin 24b on the opposite side (lower side) of the groove 24a. , 24c are provided. Further, a plurality of, for example, two ridges 24d are formed inside the groove 24a, and each ridge 24d is partially provided with a notch C, and between the passages on both sides across the ridge 24d. The air and water can be moved (see FIGS. 6 and 7). Furthermore, a plurality of, for example, three through holes 24e for discharging water are formed in the groove bottom 24g of the groove 24a (see FIG. 2). Furthermore, the waterproof fins 24b and 24c are formed of a soft resin that can be easily bent and deformed, and when the door body 10 is closed with respect to the opening 4, the state shown by the broken line is changed to the state shown by the solid line and becomes waterproof. On the contrary, when the door body 10 is opened with respect to the opening 4, the state shown by the solid line is deformed to the state shown by the broken line. Portions other than the waterproof fins 24b and 24c in the frame body 24 are made of hard resin.

  The frame bodies 21 to 24 configured in this manner are attached to the corresponding sides of the four sides of the door body 10 by bringing the end face 10a of the door body 10 into contact with the ridges 21d to 24d. Clearances 21f to 24f are formed between 24a and the end surface 10a of the door body 10. These gaps 21f to 24f communicate with each other in the frame bodies 21 to 24 attached to the four sides of the door body 10, and the frame bodies 21 to 23 attached to the upper side, the left side, and the right side of the door body 10. The gap of the frame 24 mainly functions as a passage A for passing air, and the gap of the frame 24 attached to the lower side of the door body 10 mainly functions as a passage B for passing water. The passage B is formed by a gap (concave) 24f adjacent to the protrusion 24d and is connected to the through hole 24e, and the passage A is connected to the air vent through hole 23e.

  And the water which mainly flows through the channel | path A which lets air pass is collected by the clearance gap 24f of the frame 24 which functions as the channel | path B, and the water passing through the clearance gap 24f is outside via the water discharge through-hole 24e. Discharged.

  Therefore, according to the present embodiment, the water movement passage B is provided in the groove portion 24a by separating the lower end of the door body 10 from the groove bottom of the frame body 24, and the discharge through hole 24e is provided in the groove bottom 24g. Since it is provided, the water collected in the passage B is drained from the through hole 24e, and the lower end of the door body 10 is unlikely to contact the water collected in the passage B. Therefore, it is possible to prevent the wooden panel 11 from being impregnated with water, thereby making the panel 11 and the frame body 20 (24) excellent in corrosion resistance. Further, since the lower end surface 10a of the door body 10 is brought into contact with the ridges 24d provided on the groove bottom 24g of the frame body 24, the frame body 20 can be easily attached to the door body 10 in a positioned state. In addition, the positional relationship between the door body 10 and the frame body 20 is difficult to change. And the path | route B is securable by the positional relationship.

  Moreover, as shown in FIG. 5, in this invention, the height H of the protruding item | line 24d is set so that it may become larger than 2 mm and smaller than 10 mm. The reason is that the height H of the ridges is larger than 2 mm, so that it is possible to prevent water movement in the passage B from becoming difficult when the height is less than 2 mm. On the other hand, since the height H of the ridge is smaller than 10 mm, there is an effect that the force for holding the panel 11 of the groove 24a can be prevented from being lowered. That is, when the height H of the ridge is 10 mm or more, the area covering the edge of the door body 10 can be made substantially the same by increasing the height of the groove 24a from the groove bottom 24g. However, the groove 24a becomes deeper and the walls 24h on both sides in the width direction become longer, which facilitates bending and deformation, and the force for holding the panel 11 in the groove 24a decreases. On the other hand, when the height H of the ridge is set to 10 mm or more, the area covering the edge of the door body 10 is reduced unless the height dimension of the groove 24a from the groove bottom 24g is increased, and the panel of the groove 24a is reduced. 11 is reduced. Therefore, it can prevent that the force holding the panel 11 of the groove part 24a falls by making height H of a protruding item | line smaller than 10 mm.

Further, in the present invention, the area S of the through hole 24e is set to be smaller than the larger 50 mm ² than 7 mm ^2. The reason is that since the area S of the through hole 24e is larger than 7 mm ^2, it is possible to prevent water from passing through the through hole 24e when it is made 7 mm ² or less. On the other hand, since the area S of the through hole is smaller than 50 mm ^2, it is possible to prevent the frame from becoming easily deformed twist when the area S of the through hole to 50 mm ² or more. For example, when the through hole 24e is circular as shown in FIG. 6, the diameter L1 is about 3 mm to 8 mm. Alternatively, in the case of a rectangular oblong or square as shown in FIG. 7, set so that the product of the length L3 of one side of the length L2 and the other sides is smaller than the larger 50 mm ² than 7 mm ² That's fine.

  6 and 7, when the through hole 24e is provided so as to straddle the two ridges 24d, it is not necessary to provide the notch C separately.

  In the above-described embodiment, the upper, left, and right side frames of the door body 10 are also provided with two ridges inside the groove, but the present invention is not limited to this, and the door is provided in the groove. It is good also as a structure by which the edge part of the main body just fits, and the channel | path A which lets air mainly pass is abbreviate | omitted.

  However, the frame on the lower side of the door body 10 needs to have a structure having a water movement passage B. For that purpose, one or three or more ridges are provided inside the groove, Can take form.

  FIG. 8 is a longitudinal sectional view showing an opening / closing door according to another embodiment of the present invention. The same parts as those in FIG. 4 are denoted by the same reference numerals.

  In this open / close door, the structures of the frame bodies 23A and 24A provided on the upper side and the lower side of the door body 10 are changed. In other words, this is equivalent to a configuration in which the two ridges 23d and 24d provided inside the groove portions 23a and 24a are arranged at both ends of the groove portion, and the groove portions 23i and 24i are provided at the center in the width direction of the groove portions 23a and 24a. It becomes the composition. Even in this configuration, the recess 24i of the frame body 24A provided on the lower side of the door body 10 functions as the water movement passage B, and it is a matter of course that the same effect as in the above-described embodiment can be obtained.

  In the above-described embodiment, as the lower frame, a groove functioning as the water movement passage B is provided in the center in the width direction of the groove, but the present invention is not limited to this, and other forms are provided. Of course, it is good also as a structure which has the channel | path B for water movement. For example, a configuration in which the lower end of the opening / closing door is received by the side surface (upper portion) of the protrusion protruding in the horizontal direction toward the inner surface of the other side on the inner surface of the groove and the water movement passage B is provided below the protrusion, etc. be able to. The protrusions may be provided on both inner surfaces so as to face each other's inner surfaces.

It is a perspective view which shows the cargo box of the truck which applies the opening / closing door which concerns on one Embodiment of this invention. It is a front view which shows the opening-and-closing door which concerns on this embodiment provided in the opening part of the packing box of FIG. It is sectional drawing by the III-III line of FIG. It is sectional drawing by the IV-IV line of FIG. It is explanatory drawing of the dimension of a protruding item | line. It is a top view which shows 1 form of a through-hole. It is a top view which shows the other form of a through-hole. It is a longitudinal cross-sectional view which shows the opening / closing door which concerns on other embodiment of this invention. It is a longitudinal cross-sectional view which shows the opening / closing door of patent document 1. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Opening / closing door 2 Truck 3 Cargo box 4 Opening part 10 Door main body 11 Wooden panel 12, 13 Aluminum plate 20 Waterproof frame 24, 24A Frame 24a Groove 24d Projection 24e Through-hole 24f Clearance (concave)
24i Concave strip B Passage for water H Convex strip height S Through hole area

Claims (4)

In an opening / closing door provided at the opening of a truck's packing box, comprising a door body having a wooden panel, and a waterproof frame having a U-shaped groove section covering the lower edge of the door body,
A state in which the lower end of the door body is separated from the groove bottom of the frame body and a water movement passage is provided in the groove, and a through hole for discharging water downward is communicated with the passage in the groove bottom. Opening and closing doors characterized by being provided with. The opening / closing door according to claim 1,
A ridge is provided on the groove bottom of the frame body, the lower end of the door body is brought into contact with the ridge, and the water movement passage is formed by a recess adjacent to the ridge. Opening and closing door. The door according to claim 2,
An opening / closing door characterized in that the height of the ridge is larger than 2 mm and smaller than 10 mm. The opening / closing door according to any one of claims 1 to 3,
Door, wherein the area of the through hole is smaller than the larger 50 mm ² than 7 mm ^2.

Images