JPH0716843U - Top plate fixing structure made of synthetic resin with wet edge - Google Patents

Abstract

(57) [Summary] [Purpose] When a PVC foam is used for the joist at the wetting edge made of synthetic resin in which the upper plate laid across the joist is fixed with tapping screws screwed from below the joist, It is possible to prevent the situation where the upper plate is lifted from the joists and the fixing state becomes unstable due to the swelling that occurs at the tapping screw penetrating point on the upper surface. [Structure] Concavity 1 on the upper surface of joist 1 made of PVC foam
3 is provided to form a gap between the joist 1 and the upper plate 2, and the tapping screw 5 screwed through the joist 1 is screwed into the upper plate through the recess 13.
The bulge that occurred at the tapping screw penetration point is the recess 1
It is housed in 3.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an upper plate fixing structure for a synthetic resin wet edge.

[0002]

[Prior art]

 FIG. 3 shows an external view of the wet edge A. In the wet edge A of the same figure, a large number of upper plates 2 are arranged side by side on a pair of left and right parallel joists 1, 1 with a gap therebetween, and each joist 1, 1 is formed by a required number of legs 3. I am supported. This kind of wet edge A is installed on the edge of the building.

By the way, in the conventional wet edge A made of synthetic resin, the leg 3 and the upper plate 2 are made of polyvinyl chloride resin foam (PVC foam), and the joist 1 is made of aluminum extruded product. Was. Then, for example, the legs 3 and the upper plate 2 made of PVC foam are colored in a brown color, and the joist 1 is also colored in the same color. I was trying to have a feeling.

However, even if the joist 1, the upper plate 2 and the leg 3 are colored in the same system to maintain their external harmony, the joist 1 is made of a metal called aluminum. However, there is a problem that a slight discomfort is inevitably produced between the upper plate 2 and the leg 3 made of PVC foam.

Further, since the joist 1 is made of metal, the weight of the wet edge A as a whole becomes heavy in comparison with the use of the lightweight PVC foam for the upper plate 2 and the legs 3, impairing the weight reduction. There was one side that was.

[0006]

[Problems to be solved by the device]

 Therefore, an attempt was made to reduce the weight of the wet edge A as a whole by reducing the weight of the joist 1 by substituting the joist made of PVC foam for the conventional metal joist 1. At that time, the upper plate 2 is laid horizontally on the joist 1 and the upper surface of the joist 1 and the lower surface of the upper plate 2 are overlapped, and tapping screws screwed into the joist 1 from below are attached to the upper surface of the joist 1 and the upper plate 2. When the same upper plate fixing structure as in the past is adopted in which it is screwed into the upper plate 2 through the overlapping part with the lower surface, PVC foam that forms the joist 1 at the protruding part of the tapping screw on the upper surface of the joist 1. Occurs, and the raised part is sandwiched between the upper surface of the joist 1 and the lower surface of the upper board 2 to lift the upper board 2 from the joist 1, and the fixing state between the joist 1 and the upper board 2 becomes unstable. The inconvenience of being easy to become was found. It was also found that the thread scraps generated by the screwing of the tapping screw are clogged and the upper plate 2 is lifted from the joist 1 to cause the same inconvenience.

The present invention has been made in view of the above circumstances, and a joist is devised by taking measures so as to absorb the swelling of the material and the thread scraps generated by the screwing of the screw member such as the tapping screw. An object of the present invention is to provide a synthetic resin wet-edge top plate fixing structure that can stabilize the fixing state between the joist and the top plate even if it is made of a synthetic resin such as PVC foam to reduce its weight. To do.

[0008]

[Means for Solving the Problems]

 The upper plate fixing structure of the synthetic resin wet edge according to the present invention has a synthetic resin wet edge in which a plurality of upper plates are arranged side by side on the joist, and the joist is made of synthetic resin. Alternatively, at least one of the lower surface of the upper plate is provided with a recess forming a gap between the joist and the upper plate, and a screw member such as a tapping screw screwed through the joist penetrates the recess. It is screwed into the upper plate.

[0009]

[Action]

 According to the above configuration, even if the synthetic resin material forming the joists is bulged at the point where the tapping screw penetrates on the upper surface of the joists, the bulges form the gap formed between the joists and the upper plate. Fits in. Further, even if thread cutting chips are generated due to the screwing of the tapping screw, the thread cutting chips are settled in the above gap. For this reason, the situation in which the upper plate is lifted from the joist due to the above-mentioned swelling and the generation of screw cutting chips does not occur.

[0010]

【Example】

 1 is a partially cutaway side view showing an upper plate fixing structure according to an embodiment of the present invention, and FIG. 2 is a sectional view taken along line II-II of FIG. The wet edge made of synthetic resin according to this embodiment has the appearance as described above with reference to FIG. 3, and as shown in the figure, the end of the joist 1 is covered with the synthetic resin cap 4. It is what

In the wet edge of this example, joists 1, top plate 2, legs 3, etc. are all made of PVC foam. As shown in FIGS. 1 and 2, the joist 1 is an elongated member integrally including an upper plate portion 11 and hanging plate portions 12, 12 provided in front of and behind the upper plate portion 11. A shallow groove-shaped recess 13 extending over the entire length is formed on the upper surface of the. Reference numeral 14 denotes rib portions on both sides of the recess 13.

The upper plate 2 is laid across the joist 1 while being supported by the rib portion 14 of the joist 1. Therefore, a gap having a width corresponding to the depth of the recess 13 is formed between the joist 1 and the upper plate 2. Reference numeral 5 denotes a tapping screw. The tapping screw 5 is screwed from below the joist 1 through the joist 1, and is also screwed into the upper plate 2 through the recess 13.

When the tapping screw 5 is screwed through the joist 1, since the joist 1 is made of PVC foam, the tapping screw 5 on the upper surface of the joist 1 may rise up. However, the bulge is contained in the gap between the joist 1 and the upper plate 2 formed by the recess 13. Further, even if thread cutting chips are generated due to the screwing of the tapping screw 5, the thread cutting chips are settled in the above gap. Therefore, there is no possibility that the upper plate 2 is lifted from the joist 1 and the fixed state of the two becomes unstable due to the above-mentioned swelling or generation of screw chips.

As shown in FIG. 1, the leg body 3 has its upper end surface abutted against the lower surface of the joist 1 and is fixed to the joist 1 using an L-shaped attachment 6. 7 is a fastener such as a tapping screw.

Although the recess 13 is provided on the joist 1 side in this embodiment, the recess 13 may be provided on the upper plate 2 side or both the joist and the upper plate may be provided. Further, instead of the tapping screw 5 used for fixing the joist 1 and the upper plate 2, it is possible to use another screw member such as a screw nail. Further, as the material of the joist 1, the upper plate 2 and the leg body, not only PVC foam but also other kinds of synthetic resin foam, non-foamed PVC or other non-foamed synthetic resin may be used. It is possible.

[0016]

[Effect of device]

 According to the upper plate fixing structure of the synthetic resin wet edge according to the present invention, a light amount of synthetic resin is used as the material of the joist, and the joist and the upper board are fixed by screwing a screw member such as a tapping screw. Even if it is, the fixing condition between the joist and the upper plate will be stable, and it will be possible to provide a lightweight synthetic resin wet edge that is securely fixed without the upper plate rising from the joist. .

[Brief description of drawings]

FIG. 1 is a partially cutaway side view showing an upper plate fixing structure according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a perspective view schematically showing the appearance of a general wet edge.

[Explanation of symbols]

 A Wet edge 1 Joist 2 Upper plate 5 Tapping screw (screw member) 13 Recess

Claims (1)

[Scope of utility model registration request] 1. In a synthetic resin wet edge in which a plurality of upper plates are horizontally arranged in parallel on a joist, the joist is made of a synthetic resin, and the joist is made of synthetic resin on at least one of an upper surface of the joist and a lower surface of the upper board. , A recess forming a gap between the joist and the upper plate is provided, and a screw member such as a tapping screw screwed through the joist penetrates the recess and is screwed into the upper plate. Top plate fixing structure made of synthetic resin with wet edge.