JP3083644B2 - Slot cover frame material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a receiving frame member provided on an upper portion of a groove side wall for supporting a groove cover when forming a pit or a drain groove for cable wiring. The present invention relates to a receiving frame material for a groove cover which can be fixed to cast concrete and can be fixed securely.

[0002]

2. Description of the Related Art When forming grooves for cable wiring or the like outdoors or indoors, it is necessary to provide a lid in a detachable manner. Therefore, a receiving frame material for supporting the groove cover is generally formed along the upper edge of the groove. FIG. 5 is a perspective explanatory view showing an arrangement example of the groove 3 and the receiving frame member 1A. The groove 3 is formed by casting concrete at a position dug down from the floor surface GL. And on the upper edge of both sides of the groove 3,
Receiving frame members 1A, 1A for supporting the side edges of the groove lid 2 are arranged in parallel. FIG. 6 is a sectional view showing an example of the receiving frame member 1A. The receiving frame member 1A is composed of a steel L-shaped angle 51 and a bar steel material 52 having a rectangular cross section welded and fixed to the upper surface thereof. Numeral 2 is supported on the upper surface of the angle 51, the lateral movement of the side surface of the groove cover 2 is regulated by the steel bar 52, and the upper surface of the groove cover 2 is made equal to the floor level GL.

When connecting the receiving frame members 1A in the longitudinal direction, or connecting the receiving frame members 1A, 1A at bent portions or the like, the ends of the receiving frame members 1A are butt-welded. To form the joint Wa.

When the receiving frame material 1A is laid out, a primary concrete 32 is first cast while leaving a space having a size and shape corresponding to the groove 3. At this time
The next concrete 32 is provided with a bar 53 for anchoring. Next, while holding the receiving frame member 1A at a predetermined height and a horizontal position, the receiving frame member 1A is welded and fixed to the stud 53. In this way, the receiving frame material 1A is temporarily fixed to the primary concrete 32, and the secondary concrete 34 is cast, and the receiving frame material 1A is embedded and fixed in the secondary concrete. Finally, the inner surface of the groove and the floor surface are finished with mortar materials 31a and 31b.

However, in temporarily fixing the receiving frame member 1A using the anchor stud 53, complicated cutting and welding operations must be performed for accurate positioning and leveling. That is, the streak 53 is rarely provided at an accurate position and an appropriate length,
In the actual construction method, it is often necessary to cut the insert or the receiving frame material in the vertical or horizontal direction for adjustment, or to additionally provide an auxiliary iron bar. It is very difficult to perform this cutting and welding operation while positioning the position. In addition, the welding work of the joint Wa between the receiving frame members also involves complicated work, which causes a long time for the connection construction.

[0006]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a receiving member for a groove lid which can be temporarily fixed before concrete is cast by simple construction and which is firmly integrated with cast concrete. To provide.

[0007]

According to the present invention, which has attained the above-mentioned object, according to the present invention, a cross section of a receiving frame member is formed into a substantially L-shape by a horizontal portion and a vertical portion, and a vertical portion corresponding to a side wall surface of the groove is formed. Is formed with a concave portion recessed from the groove side wall surface, and the concave portion has
The gist is that a through hole for inserting an anchor bolt and a through hole for inserting a nail for temporary fixing are provided.

[0008]

FIG. 1 is an explanatory sectional view showing an embodiment of a receiving frame member according to the present invention. The cross section of the receiving frame member 1 is formed in an inverted L-shape, and a support seat 11a for mounting the groove lid 2 is formed on the upper surface of the horizontal portion 11, and the end portion thereof corresponds to the thickness of the lid 2. The protruding portion 12 is protruded at a height that is high. Vertical part 15
Is formed with a concave portion 13. These shapes are formed continuously along the longitudinal direction of the receiving frame member 1 as shown in FIG. The recess 13 is provided with a through-hole. The through-hole has an arbitrary number of through holes 14 for inserting an anchor bolt (21) and through holes 16 for inserting a nail (25) for temporary fixing. (See FIG. 2). Note that reference numeral 24 in FIG.
Is a metal fitting used for temporary fixing using a cutting line or the like, and is fixed to the receiving frame member 1 by a nut 23 when the anchor bolt 21 is fixed to the through hole 14. Reference numeral 22 denotes a head portion of the anchor bolt 21. The head portion has a hexagonal shape or a concave shape for screwdriver fitting.

FIG. 2 is an explanatory view showing an example of construction of the groove 3 using the receiving frame member 1 shown in FIG. In forming the side wall of the groove 3, the wooden concrete panel 4 is erected using the reinforcing material 5, and the receiving frame 1 is fixed to the panel 4 using the nail 25. This fixing is performed by the through holes 16 of the receiving frame member 1,
16 and the nail 25 is driven through the through hole 16. An anchor bolt 21 is inserted into the through-hole 14 in advance, and the receiving frame 1
And, if necessary, jointed with the insertion bar 54 using the bolt 21 (a reinforcing material 55 or the like may be used).
And temporarily fix the receiving frame member 1 so as to match the reference line.

[0010] Then, concrete is poured into the receiving frame member 1 to a height reaching the section of the projection 12. Groove 3 in FIG.
The left side wall shows a state in which the concrete panel 4 and the like have been removed, the receiving frame 1 is fixed to the upper edge of the groove side wall, and the tip of the nail 25 projects into the concave portion 13. Disconnect. Also, the head portion 22 of the anchor bolt 21 protrudes from the recess 13 but does not protrude into the groove 3 as shown in FIG. 1, which hinders the work of laying the electric cable in the groove. Or the resistance of the fluid flowing in the groove.

The receiving frame member 1 may be any of a metal material such as an aluminum alloy, FRP, plastic, and the like. The concave portion 13 formed in the receiving frame member 1 is not limited to a groove, but may be a longitudinal member. The dent may be formed intermittently in the direction. Further, the through hole 14 may be formed so as to be long in the longitudinal direction of the frame material so that the fixing position of the anchor bolt 21 is shifted.

FIG. 3 and FIG. 4 are explanatory views showing the connection form of the receiving frame member 1. FIG.
Are connected in a straight line. For this connection, a straight plate-shaped connection fitting 8 is used, and holes 8 a for bolt insertion are formed at both ends of the fitting 8, and a through hole formed at the end of the hole 8 a and the receiving frame material 1. 14, an anchor bolt 21 is connected to the receiving frame member 1 via the metal fitting 8.
Are connected in a straight line.

FIG. 4 (plan view) shows an example in which two receiving frames 1 and 2 are provided.
1 shows an example in which 1 is connected at a right angle. The ends of the receiving frame member 1 are cut at 45 degrees to each other, and they are joined together. An L-shaped metal member 8B is used as a connecting metal member. Attached, anchor bolts 21 and
1 and fixed in the same manner as in the example of FIG.

[0014]

The present invention is constructed as described above, so that it is possible to perform a simple construction work when arranging it on the upper part of the side wall of the groove, and to use the anchor bolt to solidify the cast concrete. Now you can fix it.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of a receiving frame material of the present invention.

FIG. 2 is an explanatory view showing a construction example of mounting the receiving frame member shown in FIG.

FIG. 3 is a perspective explanatory view showing a connection example of the receiving frame member shown in FIG. 1;

FIG. 4 is a plan view showing a connection example of the receiving frame member shown in FIG. 1;

FIG. 5 is an explanatory view showing an example of construction of a conventional groove.

FIG. 6 is an explanatory cross-sectional view of a groove formed by the working example of FIG. 5;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Receiving frame material 2 Groove lid 11 Horizontal part 12 Vertical part 13 Concave part 14, 16 Through hole

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Hiroyuki Moo 5-8, Nishiobari-cho, Suita-shi, Osaka Examiner, Nippon Shokubai Resin Technology Research Institute Co., Ltd.Hiroshi Furuyano (56) References (JP, U) Japanese Utility Model 57-144439 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H02G 1/06 501 E03C 1/12 E03F 5/04

Claims (1)

(57) [Claims] 1. A receiving frame member for supporting the side wall on the edge is disposed in the side edge of the groove for the lid of the groove, receiving only the frame member, the cross-section is approximately L-shaped, groove side The vertical portion corresponding to the wall surface side is formed with a concave portion recessed from the groove side wall surface, and the concave portion is provided with a through hole for inserting an anchor bolt and a through hole for inserting a nail for temporary fixing. A receiving frame material for a groove lid, characterized in that: