JP7438920B2 - simple structure - Google Patents

Description

The present invention relates to a simple structure installed in a garden of a house or the like.

Traditionally, decks are sometimes installed in the gardens of houses. On such decks, curtain boards are pasted to cover the edge of the decking material, but the appearance can't help but give the impression of being unrefined.

In view of the above-mentioned circumstances, it is an object of the present invention to provide a simple structure that does not require a curtain board to cover the edge of a deck material.

The present invention includes a deck material and an edge cap, and the edge cap is formed in such a manner that the center portion thereof is convex to the left and right on the side facing the deck material, and The above-mentioned problem was solved by creating a simple structure that is fixed on both the left and right sides of the material so that it is flat as a whole and is fixed under stress.

Not only is there no need to provide a curtain board to cover the edge of the decking material, but the edge cap looks like a wood edge, giving the impression that each decking material is actually wood, improving the appearance. Therefore, it is possible to provide a simple structure that can prevent a gap from forming between the deck material and the edge cap.

Perspective view of a deck installed in a residential garden Front view of deck deck side view Rear view, side view, and side sectional view of the end cap Bottom view of the edge cap Front and side views of the end cap showing how it is attached to the decking material while visualizing the structure on the back. Conceptual diagram showing how variations in deck material thickness are hidden with a small cap Explanatory diagram showing measures against thermal deformation of the edge cap

(Example)
The following description will be made using drawings, but the following drawings were created for the purpose of explanation, and in order to make it easier to understand, members unnecessary for the explanation may not be intentionally shown. In addition, members may be intentionally shown large or small for explanation purposes, and the drawings are not drawn to exact scale. In the following description, the same reference numerals in different figures indicate parts with the same function, and redundant explanation in each figure will be omitted as appropriate.

Embodiments of the present invention will be described below based on the drawings. 1 to 3 show an embodiment of a simple structure according to the present invention, which is applied to a deck installed in a garden of a house. As shown in Figure 1, when the opposite side of the house is defined as the front and the left and right are defined from the front view from the front, this deck is installed with the rear edge along the outer wall of the building. You can access the deck from the terrace window. This deck is constructed by constructing a plurality of Ohiki 3 at intervals in the front and back on pillars 2 erected in the front, back, left and right, and on top of the Ohiki 3 a decking material 4 is oriented in the front and rear direction. Multiple bridges are arranged in rows. An edge cap 1 is fitted into the edge of each deck material 4. The decking material 4 is a synthetic wood made by extrusion molding synthetic resin mixed with wood flour, and as shown in FIGS. It has a hollow part and a vertical wall that divides the hollow part into a plurality of parts. The edge cap 1 is also made of synthetic wood, but is molded by injection molding instead of extrusion molding.

FIG. 2 is a partially cutaway front view of the upper part of this deck. In addition, FIG. 2 partially visualizes the interior of a plurality of edge caps 1 arranged side by side so that the features of the edge caps 1 and the state of engagement with the deck material 4, which will be described later, can be seen. . That is, the edge cap 1 on the left end is drawn in a normal state, and the edge cap 1 second from the left is drawn in a state where the structure of the back side of the edge cap 1 and the structure of the deck material 4 are seen through. The edge cap 1, which should be present at the right end, is depicted as having been removed and the edge of the deck material 4 is visible.

FIG. 3 is a side view of the upper portion of the deck. As shown in FIGS. 3 and 6, the upper end 18 of the edge cap 1 is flush with the upper surface of the deck material 4, while the lower end 19 of the edge cap 1 protrudes downward from the lower surface of the deck material 4. ing. By attaching the synthetic wood edge cap 1 so that the upper end is flush with the upper end of the decking material 4, the decking material 4 has a natural wood look when viewed from the eye level. ing. If an inexpensive edge cap made of synthetic rubber or the like is used, it will inevitably look like an industrial product, but in the embodiment of the present invention, the decking material 4 looks as if it were made of natural wood. This emphasizes the luxurious feel of the deck materials 4, which are aligned in the front-rear direction.

(Fixing and locking structure of the edge cap)
FIG. 4 is a diagram showing the structure of the edge cap 1, particularly the structure of the back surface. 4(a) shows the back side of the edge cap 1, FIG. 4(b) shows the side surface of the edge cap 1, and FIG. 4(c) shows a side cross section taken along line AA in FIG. 4(a). As can be seen from FIG. 4(b), the lid portion 11 is linear over the entire width in the left and right direction, and the edge cap 1 is shown attached to the deck material 4. Before being attached to the deck material 4, the lid portion 11 has a curved shape.

FIG. 5 is a bottom view of the edge cap 1 showing the state in which the edge cap 1 is attached to the deck material 4. The curve drawn with a broken line is the shape of the edge cap 1 before it is attached to the deck material 4. This will be discussed later. As can be understood by looking at FIGS. 4 and 5 together, eight extending members are provided from the back side of the lid part 11, which will be located at the front when it is attached to the deck material 4, toward the back in the swallowing direction. It is being Four of the eight extending members have holes for screwing as means for fixing the edge cap 1 to the deck material 4. The four members are further classified into side surface screwing portions 12 provided on the left and right, and lower surface screwing portions 13 provided two near the center. These screw fixing parts function as the main fixing means, and are swallowed into the hollow part of the deck material 4 while slidingly contacting the inner side surface and the inner lower surface of the deck material 4. At the swallowing position, the mouth cap 1 is adjusted to an appropriate vertical position to be fixed, and then screwed down with a screw 122.

Among the eight extending members, the other four are two inner locking portions 14 and two outer locking portions 15. The inner locking portion 14 and the outer locking portion 15 do not have holes for screwing, but instead have a serrated uneven portion on the side where the extended portion slides into contact with the inner surface of the hollow portion of the deck material 4. ing. The inner locking portion 14 and the outer locking portion 15 are oriented and shaped so that the saw-like uneven portions are brought into strong sliding contact with the side surface of the partition wall 442 of the hollow portion when injection molded. The inner locking portion 14 and the outer locking portion 15 also function as means for fixing the edge cap 1 to the deck material 4 by frictional force. In particular, the two inner locking portions 14 serve as clamping portions that strongly sandwich the central partition wall 441 located at the center of the hollow portion of the deck material 4, and provide a strong frictional force. Therefore, the inner locking portion 14 effectively prevents the edge cap 1 from floating inadvertently. Conventional edge caps swell due to thermal elongation due to aging deterioration, and the center of the edge cap may float, but the clamping action of the inner locking part 14 prevents thermal expansion due to aging. can do.
Note that there is also a clear reason why all the vertical walls are not sandwiched between the sandwiching parts. Synthetic wood made by extruding synthetic resin mixed with wood powder has larger dimensional tolerances than extruded aluminum products, so the width of the decking material 4 used for this deck inevitably has a certain degree of variation due to processing. I end up. Because of the width tolerance of the deck material 4, it is difficult to sandwich all the vertical walls between the inner locking parts 14, 14. Therefore, the outer locking portions 15, 15 are arranged in separate hollow portions so as to be stretched outward, and only the central partition wall 441 is sandwiched between the inner locking portions 14, 14. However, when the dimensional tolerance of synthetic wood improves due to technological improvements, etc., it is of course possible to adopt a structure in which all the vertical walls are sandwiched.

FIG. 6 is a diagram showing how the edge cap 1 is attached to the deck material 4 together with the deck material 4. Although FIG. 6(a) is a front view, it is illustrated so that the back structure of the lid part 11 described above can be understood, and the positional relationship with the hollow part of the deck material 4 can also be understood. It is. FIG. 6(b) is a side view of the screw-fastened state. The screw hole of the side screw part 12 of the edge cap 1 is a female thread part corresponding to the screw 122, while the hole drilled at the corresponding position on the side surface of the deck material 4 is a female thread part corresponding to the screw 122. The diameter is said to be larger than the screw hole. However, the size of the diameter is limited to a range that allows sufficient axial force to be exerted on the deck material 4 from the seating surface of the screw 122. With this configuration, the vertical position of the edge cap 1 relative to the deck material 4 can be adjusted. During installation, the upper end portion 18 is adjusted and fixed to the same level as the upper surface of the decking material 4, while the lower end portion 19 protrudes downward from the lower surface of the decking material 4, so that the edge cap 1 is attached to the decking material 4. can be attached to.
Although the direction of the screw hole of the side screw part 12 of the edge cap 1 appears horizontal on the paper of FIG. 6, it actually has a draft angle. This will be discussed later.

Synthetic wood made by extruding synthetic resin mixed with wood powder has larger dimensional tolerances than extruded aluminum products, and the thickness of the decking material 4 used for this deck inevitably has a certain degree of variation due to processing. It will happen. By making it possible to adjust the vertical position of the edge cap 1 with respect to the deck material 4, variations in the thickness of the deck material 4 can be made inconspicuous.
As shown in FIG. 7, the upper end portion 18 of the edge cap 1 is made flush with the upper surface of the deck material 4, and the overall shape is flat and excellent in appearance. This, combined with the fact that the end cap looks like a wood end, gives the impression that each piece of decking material is actually wood, improving the appearance.
On the other hand, the lower end portion 19 projects downward from the lower surface of the deck material 4. Even when such a deck material 4 is viewed from above, it is not recognized that there are variations in the thickness of the deck material 4. In other words, variations in deck material thickness can be absorbed. Note that FIG. 7 is drawn in an exaggerated manner, and in reality, such a variation does not occur. This is a diagram shown in an easy-to-understand manner to aid understanding.

Note that the lower end portion 19 of the edge cap 1 may be configured to actively protrude further downward. The amount of downward protrusion for adjusting the vertical position of the edge cap 1 is sufficient to be the tolerance + α of the thickness dimension of the synthetic wood, but by making the amount of protrusion larger, this edge cap The protruding portion 1 is the lower surface of the decking material 4 and serves as a blindfold for visually unnecessary objects present near the frontage. When a deck is equipped with a lighting stand or a step (not shown), an angle may be provided on the bottom surface of the deck material 4 to connect with these components, but the edge cap 1 allows you to hide the angle.

(Drainage structure of small cap)
If the edge cap 1 closes the edge of the decking material 4 with a completely watertight structure, rainwater, etc. that entered from any part of the hollow part of the decking material 4 will accumulate in the hollow part, and if this condition continues for a long time. This may damage the deck material 4 or cause a strange odor. This measure has been taken for the edge cap 1 of this deck. That is, the edge cap 1 is provided with a drainage groove 16. The idea behind this drain 16 is not only to drain the accumulated water in the hollow part of the decking material 4, but also to send rainwater from the upper surface of the decking material 4 downward so that it passes through the edge surface of the decking material 4. It also works to actively wash away. This will be explained using FIGS. 4 to 6.

As can be seen from FIGS. 4(a) and 4(c), the drain groove 16 is formed by making a portion of the back side of the lid portion 11 thin. It can be confirmed from the side sectional view of FIG. 4(c) that it is thin-walled. Further, as can be understood from FIG. 6(a), the thin wall portion forming the drain groove 16 is the inner upper surface 443 of each of the four hollow sections of the decking material 4 divided into a plurality of sections, that is, the top plate of each hollow section. It starts from four inflow parts 161 provided at a higher position than the deck material, extends beyond the inner lower surface of the hollow part of the deck material to the lower end of the edge cap 1, and the lower end is formed to function as a discharge part 162. ing. However, the discharge portions 162 are provided at only two locations corresponding to the left and right end sections among the four sections. For this reason, two inner rectifiers 163 and two outer rectifiers 164 are provided at an intermediate position of the drain groove 16. The inner rectifying part 163 and the outer rectifying part 164 are formed so that the former has a slope shape from inside to outside, and the latter has a slope shape from outside to inside, so that the slopes are opposite to each other. This arrangement produces a rectifying effect such that rainwater and the like flowing in from the four inflow portions 161 are efficiently discharged from the two discharge portions 162. The reason for this is that it is more advantageous for draining water to be concentrated in two locations than to be dispersed in four locations. Furthermore, when the water accumulated in the deck material is drained after the rain has stopped, it is less noticeable if it is drained from two places rather than from four places.

The drain groove 16 is formed with a thin wall portion at a position higher than the top plate of the hollow portion of the deck material 4 so that the inside of the hollow portion may be actively washed away from above using rainwater or the like. Rainwater and the like flowing from the upper surface side of the deck material 4 is relatively clean, so it is actively used as running water. This makes it possible to efficiently drain water from the cleaning surface.
In addition to this, further improvements are made in two stages in the embodiment of the present invention. First, in order to prevent rainwater from entering from the sides, the thin-walled parts should not reach the inner left side and inner right side of the hollow parts at both ends of the four divided hollow parts of the deck material 4. has been done. The reason for this is that dirt, dust, sand, and sometimes foreign matter that are blown up by the wind when it is not raining tends to accumulate in the gaps between the plurality of deck materials 4. This is because if the inside of the hollow part of the deck material 4 is washed away with rainwater or the like, it may actually cause damage to the inside of the hollow part or generate a strange odor. It is the same as washing clothes with dirty water. Also, just because water is being drained doesn't mean it's unrelated. Even though it is called drainage, it is difficult to ensure completeness, and polluted rainwater may remain in the hollow space.If this is the case, it is better to prevent polluted rainwater from entering at all. It is.
Furthermore, in the embodiment of the present invention, as shown in FIG. 4(b), even if the side screw fixing part 12 is a lower part that does not contribute to fixation, it has a depth that is greater than or equal to the depth swallowed by the hollow part. , it has a shape that extends all the way to the bottom. Originally, the side screw fixing part 12 has a width that is swallowed up to the depth from the position where it is fixed with the screw 122, so it sufficiently prevents rainwater from reaching the drain groove 16 from the side. If the lower part of the hollow part is cut off in the middle, there is a risk that rainwater may enter from there. Therefore, in the embodiment of the present invention, a part of the side screwed part 12 is extended to form the water return part 121. The water returning portion 121 fully functions in cooperation with the main body portion of the screwed portion 12 to repel rainwater and the like from the side gaps. For this reason, further prevention of contaminated rainwater from entering from the sides is being attempted.

(Measures against aging of small caps)
As mentioned several times before, synthetic wood has the problem of thermal elongation as it ages. The countermeasures taken at the inner locking portion 14 have been described above, but in this embodiment, further countermeasures against thermal expansion are taken. As mentioned above, a general edge cap without any measures will swell due to thermal expansion due to aging, and the center of the edge cap will float. FIG. 8(a) clearly shows this.

We will explain countermeasures against thermal expansion due to aging. In FIG. 5, the surface where the lid part 11 of the edge cap 1 is shown is horizontal, but this is the state when it is attached to the edge of the deck material 4, and the lid part 11 before being attached. The surface on which the lid portion 11 exists is not a flat surface, and in fact, the lid portion 11 exists along a curved surface shown by a broken line in FIG. Here, the proportion of the left and right ends of the lid 11 protruding forward due to the warping of the lid 11 is about 2.4% of the total width of the lid 11.

FIG. 8 clearly shows this. The actual shape of the die-cut edge cap 1 just before being attached to the deck material 4 is shown in FIG. 8(b). The edge cap 1 is formed so that the center portion thereof is convex in the left and right directions on the surface facing the deck material. FIG. 8(c) shows the state in which it is then inserted into the edge of the deck material 4. In this state, while pressing both left and right ends of the edge cap 1 in the swallowing direction, lightly screw the screws 122 into the side screw fixing parts 12 and temporarily tighten them, then adjust the vertical position of the edge cap 1 with respect to the deck material 4 to be appropriate. Adjust it and screw it in firmly so that it is flat as a whole and secure it with stress applied. The fully fixed state is shown in FIG. 8(d), and the entire structure is flat as in the state described above. The embodiment of the present invention can be evaluated as having effectively utilized the change in the shape of the entire edge cap 1 due to aging.

By the way, the draft angle given to the screw hole of the side screw fixing part 12, which will be described later, is largely related to the premise that the edge cap 1 is molded along the same. That is, the screw holes of the side screw fixing portions 12, which are slanted during die cutting, are forced to be horizontal when attaching the edge cap 1 to the deck material 4, so that the direction in which the screws 122 are screwed in is properly adjusted. will give.

In addition, in this embodiment, the ratio at which the left and right ends of the lid 11 protrude forward due to the warping of the lid 11 is 5 mm, which is 2.4% of the total width of the lid 11 of 207 mm. It is not limited to this range. It will be easily understood that even a warp of about 1% does not mean that no effect can be obtained compared to a flat surface.

Note that the edge shape of the decking material is a rectangular shape with long and short lengths, so it is shaped so that it is convex in the long width direction, which is significantly affected by thermal elongation. If it is a square, it is better to make it convex from side to side and top to bottom.

Above, the simple structure of the embodiments of the present invention has been described in detail with reference to the drawings, and the structure thereof has been explained, but the specific configuration is not limited to these embodiments, and the present invention Even if there are changes in the design that do not depart from the gist of the invention, they are included in the present invention. For example, the deck may be an independent deck without being attached to the house.

Further, the above-described embodiments can be combined by utilizing each other's technologies unless there is a particular contradiction or problem in their purpose, structure, etc.

1 Edge cap 11 Lid part 12 Side screw fixing part (fixing means)
13 Bottom screw fixing part (fixing means)
14 Inner locking part (pinching part)
15 Outside locking part (fixing means)
16 Drainage ditch 161 Inflow section 162 Discharge section 163 Inner rectification section 164 Outer rectification section 2 Support column 3 Large drawer 4 Deck material 441 Central partition wall 442 Partition wall

Claims (1)

Equipped with deck material and small cap,
The edge cap is shaped so that the center part is convex to the left and right on the side facing the decking material, and by being attached to both the left and right sides of the decking material, the overall shape A simple structure characterized by being fixed in a flat state under stress.

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